Mexico · Monthly

August 2026

Final Issued 2026-10-11 · version 3 · Baseline 1991-2020 · next update 2026-10-12

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Version history (3)
  • version 3 · Final · 2026-10-11 — no change in the headline figures
  • version 2 · Final · 2026-10-11
  • version 1 · Final · 2026-10-11 — first issue

1 Key messages and climate synopsis

  • National mean temperature of 27.3 °C (+1.7 °C relative to 1991–2020): the 2nd warmest August in the 1979–2026 series.
  • National precipitation of 89.6 mm, 62% of normal: the driest August in the 1981–2026 series.
  • The highest maximum temperature at GHCN stations was 41.6 °C at Choix, Sin. on 22 August.
  • The largest 24-hour rainfall at GHCN stations was 138.3 mm at Hacienda Ylang Ylang Veracruz, Ver. on 18 August.
  • 22 station records were broken (stations with at least 20 years of data).
  • Maximum temperature exceeded its 90th percentile on 61% of days (national mean; 10% expected).
  • Heat waves of national extent: 2; cold waves: 0.
  • 1 tropical cyclones passed within 300 km of the country, none making landfall.
  • 29% of the country was in drought by SPI-3 (Jun–Aug 2026), mainly in Chiapas, Guerrero and Tabasco.
  • El Niño conditions of strong intensity in the equatorial Pacific (ONI JJA 2026: +1.8 °C).

Source: NOAA CPC / PSL, UCSB Climate Hazards Center

Mean temperature
27.3°C
+1.7 °C vs. normal (normal 25.7)
Well above normal
2nd warmest of 48 (1979–2026)
Maximum temperature
34.1°C
+3.2 °C vs. normal (normal 30.9)
Extremely above normal
1st warmest of 48 (1979–2026)
Minimum temperature
20.6°C
+0.1 °C vs. normal (normal 20.4)
Normal
16th warmest of 48 (1979–2026) (tied with 2004, 2009, 2015)
Precipitation
89.6mm
62% of normal (normal 144.2)
Below normal
1st driest of 46 (1981–2026)
Station records
22

Source: NOAA CPC / PSL, UCSB Climate Hazards Center

2 Global and regional climate drivers

Sea-surface temperature anomaly, August 2026 (°C, 1991–2020)

Sea-surface temperature anomaly, August 2026 (°C, 1991–2020)

Source: NOAA NCEI / PSL

Sea-surface temperature anomaly in the Niño regions (°C)

RegionAnomaly (°C)Change from preceding period (°C)
Niño 1+24.10.5
Niño 33.10.8
Niño 3.42.50.5
Niño 40.9−0.1

Mean of the months in the period (OISST v2.1)

Source: NOAA CPC

El Niño conditions of strong intensity: the Oceanic Niño Index (ONI) for JJA 2026 was +1.8 °C.

Source: NOAA CPC

Monthly Niño 3.4 anomaly, last 24 months (°C)

Monthly Niño 3.4 anomaly, last 24 months (°C)

Source: NOAA CPC

MJO phase diagram (real-time OMI)

MJO phase diagram (real-time OMI)

Source: NOAA PSL

Teleconnection indices

IndexValuePhase
PDO−1.9Negative
NAO−1.9Negative

Pacific Decadal Oscillation (PDO); North Atlantic Oscillation (NAO).

Source: NOAA CPC, NOAA NCEI

The Niño 3.4 anomaly was +2.52 °C (+0.49 °C relative to the preceding period).

The MJO was active on 4 of 31 days, most often in phase 7 (Western Pacific); mean amplitude 0.6.

Other indices: PDO −1.89 (negative phase); NAO −1.92 (negative phase).

3 Precipitation

National precipitation
89.6mm
62% of normal (normal 144.2)
Below normal
1st driest of 46 (1981–2026)

Source: UCSB Climate Hazards Center

Accumulated precipitation

Accumulated precipitation

Source: UCSB Climate Hazards Center

Percent of normal precipitation (1991–2020)

Percent of normal precipitation (1991–2020)

Source: UCSB Climate Hazards Center

Percent of normal by state

Percent of normal by state

Source: UCSB Climate Hazards Center

Precipitation by region

RegionTotal (mm)Normal (mm)Difference (%)Category
Northwest76.684.5−9.4Near normal
North56.096.5−41.9Below normal
Northeast24.576.5−67.9Much below normal
North-central54.790.8−39.8Below normal
West-central145.7207.1−29.6Below normal
Central96.4160.0−39.8Below normal
South129.6288.8−55.1Below normal
East147.4265.7−44.5Below normal
Yucatán Peninsula157.7182.0−13.4Near normal

Source: UCSB Climate Hazards Center

Stations with the largest precipitation excess

RegionStateStationAltitude (m)Anomaly (%)
NorthwestBaja California SurLa Paz (City)18.0241.5
EastVeracruzJalapa1389.045.8
NorthDurangoDurango1872.042.3
SouthChiapasComitan1646.021.6
NorthCoahuilaSaltillo1790.020.2
NortheastTamaulipasTampico25.09.0
CentralEstado de MéxicoToluca (Obs)2726.01.8
CentralTlaxcalaTlaxcala De Xicontecatl (Dge)2230.01.0

Source: NOAA NCEI

Stations with the largest precipitation deficit

RegionStateStationAltitude (m)Anomaly (%)
NorthwestBaja CaliforniaEjido Nuevo Leon (Obs)11.0−100.0
Yucatán PeninsulaYucatánProgreso2.0−86.6
SouthChiapasFrancisco Sarabia1052.0−57.0
NorthChihuahuaTemosachi (Obs)1932.0−53.9
NortheastTamaulipasCiudad Victoria355.0−27.1

Source: NOAA NCEI

Largest 24-hour rainfall at stations

StationStateMax 24 h rainfall (mm)Date
Hacienda Ylang Ylang VeracruzVeracruz138.32026-08-18
VillahermosaTabasco88.52026-08-18
OrizabaVeracruz84.42026-08-18
CoatzacoalcosVeracruz78.12026-08-18
JalapaVeracruz70.02026-08-18
Sn. Cristobal Las CasasChiapas65.32026-08-04
ZamoraMichoacán63.02026-08-05
Chilpancingo Ro.Guerrero59.42026-08-02
Mexico CityCiudad de México54.72026-08-18
Tuxpan.Ver.Veracruz53.82026-08-24

Source: NOAA NCEI

Daily national mean precipitation

Daily national mean precipitation

Source: UCSB Climate Hazards Center

Daily national mean and grid-cell maximum

DayNational mean (mm)Grid maximum (mm)State
2026-08-011.734.8Chihuahua
2026-08-022.134.4Zacatecas
2026-08-034.562.0Sinaloa
2026-08-043.247.5Chihuahua
2026-08-053.140.7Chiapas
2026-08-064.351.0Campeche
2026-08-073.472.7Oaxaca
2026-08-084.066.7Durango
2026-08-093.344.5Oaxaca
2026-08-103.454.6Campeche
2026-08-114.357.6Colima
2026-08-124.249.2Campeche
2026-08-132.643.4Oaxaca
2026-08-142.440.4Puebla
2026-08-152.637.6Oaxaca
2026-08-162.994.7Oaxaca
2026-08-173.246.1Yucatán
2026-08-184.461.9Campeche
2026-08-192.057.8Veracruz
2026-08-201.342.7Jalisco
2026-08-211.855.8Guerrero
2026-08-222.253.5Colima
2026-08-234.486.3Veracruz
2026-08-242.745.0Oaxaca
2026-08-251.622.3Querétaro
2026-08-261.333.8Chiapas
2026-08-271.741.4Veracruz
2026-08-281.754.8Veracruz
2026-08-292.748.7Guerrero
2026-08-302.942.6Campeche
2026-08-313.660.7Jalisco

Source: UCSB Climate Hazards Center

National precipitation in August of each year

National precipitation in August of each year

Source: UCSB Climate Hazards Center

National accumulated precipitation was 89.6 mm, 62% of the 1991–2020 average (144.2 mm), category “Below normal”. It was the driest August in the 1981–2026 series.

The region with the highest percentage of normal was Northwest (91%) and the lowest was Northeast (32%).

The largest daily grid-cell total was estimated on 16 August in Oaxaca (94.7 mm).

Source: UCSB Climate Hazards Center

4 Temperature

Mean temperature
27.3°C
+1.7 °C vs. normal (normal 25.7)
Well above normal
2nd warmest of 48 (1979–2026)

Source: NOAA CPC / PSL

Mean temperature

Mean temperature

Source: NOAA CPC / PSL

Mean temperature anomaly (1991–2020)

Mean temperature anomaly (1991–2020)

Source: NOAA CPC / PSL

Mean temperature anomaly by state

Mean temperature anomaly by state

Source: NOAA CPC / PSL

National mean temperature anomaly in August of each year

National mean temperature anomaly in August of each year

Source: NOAA CPC / PSL

The national mean temperature was 27.3 °C, 1.7 °C above the 1991–2020 average (25.7 °C), category “Well above normal”. It was the 2nd warmest August in the 1979–2026 series.

By region, the largest anomaly was in North (+2.0 °C) and the smallest in Yucatán Peninsula (+1.1 °C).

Source: NOAA CPC / PSL

Maximum temperature
34.1°C
+3.2 °C vs. normal (normal 30.9)
Extremely above normal
1st warmest of 48 (1979–2026)

Source: NOAA CPC / PSL

Maximum temperature anomaly (1991–2020)

Maximum temperature anomaly (1991–2020)

Source: NOAA CPC / PSL

Daily national maximum temperature

Daily national maximum temperature

Source: NOAA CPC / PSL

The national maximum temperature was 34.1 °C, 3.2 °C above the 1991–2020 average (30.9 °C), category “Extremely above normal”. It was the warmest August in the 1979–2026 series.

By region, the largest anomaly was in North (+3.9 °C) and the smallest in Yucatán Peninsula (+2.2 °C).

Source: NOAA CPC / PSL

Minimum temperature
20.6°C
+0.1 °C vs. normal (normal 20.4)
Normal
16th warmest of 48 (1979–2026) (tied with 2004, 2009, 2015)

Source: NOAA CPC / PSL

Minimum temperature anomaly (1991–2020)

Minimum temperature anomaly (1991–2020)

Source: NOAA CPC / PSL

Daily national minimum temperature

Daily national minimum temperature

Source: NOAA CPC / PSL

The national minimum temperature was 20.6 °C, 0.1 °C above the 1991–2020 average (20.4 °C), category “Normal”. It was the 16th warmest August in the 1979–2026 series (tied with 2004, 2009, 2015).

By region, the largest anomaly was in Northwest (+1.2 °C) and the smallest in Central (−0.7 °C).

Source: NOAA CPC / PSL

5 Climate extremes and records

Highest maximum temperature
41.6°C
Choix, Sin. · 2026-08-22
Lowest minimum temperature
10.5°C
Comitan, Chis. · 2026-08-27
Highest 24 h rainfall
138.3mm
Hacienda Ylang Ylang Veracruz, Ver. · 2026-08-18

Source: NOAA NCEI

Highest maximum temperature by state

StateStationTemperature (°C)Date
ChiapasComitan35.22026-08-19
ChihuahuaTemosachi (Obs)34.22026-08-28
ColimaManzanillo38.22026-08-13
DurangoDurango40.22026-08-16
JaliscoCiudad Guzman37.22026-08-23
MichoacánZamora38.12026-08-07
OaxacaOaxaca39.02026-08-08
San Luis PotosíRio Verde40.42026-08-16
SinaloaChoix41.62026-08-22
SonoraPuerto Penasco38.22026-08-08
TamaulipasTampico39.42026-08-13
TlaxcalaTlaxcala De Xicontecatl (Dge)33.52026-08-12
VeracruzTuxpan.Ver.38.92026-08-21

Source: NOAA NCEI

Lowest minimum temperature by state

StateStationTemperature (°C)Date
Baja California SurLa Paz (City)20.62026-08-10
ChiapasComitan10.52026-08-27
ColimaManzanillo19.82026-08-28
GuerreroChilpancingo Ro.13.32026-08-31
JaliscoCiudad Guzman12.82026-08-09
MichoacánZamora11.62026-08-12
OaxacaHuajuapan De Leon (Dge)12.42026-08-08
SinaloaColonia Juan Carras17.12026-08-07
SonoraPuerto Penasco29.02026-08-06
TamaulipasCiudad Victoria16.62026-08-14
VeracruzJalapa11.82026-08-28
YucatánValladolid22.32026-08-08

Source: NOAA NCEI

Station records broken

StationStateVariableNew valueDatePrevious recordPrevious date
DurangoDurangoHighest maximum temperature40.22026-08-1637.22019-08-06
Colonia Juan CarrasSinaloaHighest maximum temperature39.52026-08-2838.32017-08-18
Colonia Juan CarrasSinaloaLowest minimum temperature17.12026-08-0717.51991-08-26
Zacatecas Zac. (La BufaZacatecasHighest 24 h rainfall51.22026-08-0251.11990-08-10
TampicoTamaulipasLowest minimum temperature19.52026-08-1320.01978-08-22
GuadalajaraJaliscoHighest maximum temperature35.72026-08-2332.82021-08-02
Tuxpan.Ver.VeracruzHighest maximum temperature38.92026-08-2138.22020-08-06
Tuxpan.Ver.VeracruzLowest minimum temperature17.82026-08-0719.81989-08-28
ManzanilloColimaHighest maximum temperature38.22026-08-1338.01981-08-22
ManzanilloColimaLowest minimum temperature19.82026-08-2820.01980-08-13
Ciudad GuzmanJaliscoHighest maximum temperature37.22026-08-2332.82015-08-10
ZamoraMichoacánHighest maximum temperature38.12026-08-0737.71961-08-25
MoreliaMichoacánHighest maximum temperature32.82026-08-2831.52009-08-16
Tlaxcala De Xicontecatl (Dge)TlaxcalaHighest maximum temperature33.52026-08-1230.62001-08-19
JalapaVeracruzHighest maximum temperature33.62026-08-0231.02019-08-28
Hacienda Ylang Ylang VeracruzVeracruzHighest maximum temperature37.82026-08-2337.22005-08-31
Hacienda Ylang Ylang VeracruzVeracruzLowest minimum temperature16.92026-08-2317.81991-08-28
OrizabaVeracruzHighest maximum temperature32.02026-08-2830.82022-08-18
CoatzacoalcosVeracruzLowest minimum temperature17.02026-08-2818.32005-08-20
OaxacaOaxacaHighest maximum temperature39.02026-08-0836.22009-08-15
Sn. Cristobal Las CasasChiapasHighest maximum temperature31.62026-08-1428.02023-08-06
ComitanChiapasHighest maximum temperature35.22026-08-1932.71991-08-14

Most extreme daily value of the period against the same period in all earlier years of record (at least 20 years; for weeks, the same calendar month).

Source: NOAA NCEI

Climate-extremes indices (national mean)

IndexDescriptionValueNormalDifferenceUnit
TX90pWarm days (Tmax > 90th percentile)61.510.051.5%
TN90pWarm nights (Tmin > 90th percentile)8.810.0−1.2%
TX10pCool days (Tmax < 10th percentile)0.310.0−9.7%
TN10pCold nights (Tmin < 10th percentile)7.210.0−2.8%
FDFrost days (Tmin < 0 °C)0.00.0−0.0d
SUSummer days (Tmax > 25 °C)30.527.23.3d
TRTropical nights (Tmin > 20 °C)17.917.50.4d
WSDIWarm spell days (≥ 6 days)12.2——d
CSDICold spell days (≥ 6 days)0.1——d
Rx1dayMaximum 1-day precipitation17.027.1−10.1mm
Rx5dayMaximum 5-day precipitation29.453.3−23.9mm
CDDConsecutive dry days (< 1 mm)10.88.02.8d
CWDConsecutive wet days (≥ 1 mm)3.75.7−1.9d

Percentile indices relative to calendar-day percentiles of 1991–2020 (5-day window); counts and maxima averaged over the country's grid cells.

Source: NOAA CPC / PSL

Heat and cold waves

DatesTypeDetails
2026-08-03 – 2026-08-05Heat waveUp to 63% of the country above the 90th percentile of Tmax. Regions: North, Northeast, North-central, West-central, Central, South, East and Yucatán Peninsula.
2026-08-11 – 2026-08-31Heat waveUp to 92% of the country above the 90th percentile of Tmax. Regions: Northwest, North, Northeast, North-central, West-central, Central, South, East and Yucatán Peninsula.

Wave: at least 3 consecutive days with at least half of the country above the 90th percentile of maximum temperature (heat) or below the 10th percentile of minimum temperature (cold). At most the 10 most intense are listed.

Source: NOAA CPC / PSL

6 Drought

Standardized Precipitation Index (SPI) ending August 2026

Standardized Precipitation Index (SPI) ending August 2026
SPI computed from CHIRPS; gamma distribution fitted to 1991–2020 accumulations.

Source: UCSB Climate Hazards Center

Share of the country by SPI category

Share of the country by SPI category

Source: UCSB Climate Hazards Center

States with the lowest SPI-3

StateSPI-1SPI-3SPI-6SPI-12Category
Chiapas−2.7−2.2−2.1−1.3Extreme drought
Guerrero−1.6−1.6−1.6−1.5Severe drought
Tabasco−1.9−1.6−1.1−1.3Severe drought
Morelos−2.6−1.5−1.2−0.2Moderate drought
Oaxaca−2.1−1.4−1.2−1.2Moderate drought
Quintana Roo−0.6−1.3−0.0−0.2Moderate drought
Puebla−2.1−1.0−0.6−0.4Moderate drought
Nayarit−2.5−1.0−1.1−0.3Moderate drought
Campeche−0.4−0.9−0.4−0.9Mild drought
Chihuahua−1.2−0.8−0.8−0.4Mild drought

Source: UCSB Climate Hazards Center

SPI-3 (Jun–Aug 2026): national mean −0.55; 29% of the country in drought (SPI ≤ −1.0) and 14% in severe or extreme drought.

Most affected states: Chiapas (−2.16), Guerrero (−1.63) and Tabasco (−1.60).

SPI-1 (August 2026): 48% of the country in drought.

SPI-6 (Mar–Aug 2026): 26% of the country in drought.

SPI-12 (Sep 2025–Aug 2026): 26% of the country in drought.

7 Severe weather and notable events

Tracks of nearby tropical cyclones

Tracks of nearby tropical cyclones
Whole tracks; Saffir–Simpson category from NHC/JTWC. Source: IBTrACS v04 (provisional for recent seasons).

Source: NOAA NCEI

Tropical cyclones within 300 km of the country

NameBasinPeak intensityMaximum wind (km/h)StartEndClosest approach (km)LandfallLandfall intensity
IselleEastern North PacificTropical storm1112026-08-212026-08-27135——

Source: NOAA NCEI

Notable events

DatesTypeDetails
2026-04-21 – 2026-10-09DroughtGDACS Orange alert: Drought in The Bahamas, Belize, Costa Rica, Cuba, Dominican Republic, Guatemala, Honduras, Haiti, Mexico, Nicaragua, El Salvador.

GDACS alerts and station rainfall of 150 mm or more in 24 hours (after quality control).

Source: GDACS

Tropical cyclones within 300 km of the country: 1 (Iselle).

9 Outlook

Outlook for September 2026: most likely tercile

Outlook for September 2026: most likely tercile

Source: NOAA CPC

Outlook for Sep–Nov 2026: most likely tercile

Outlook for Sep–Nov 2026: most likely tercile

Source: NOAA CPC

Probability of each tercile by region, Sep–Nov 2026 (%)

RegionPrecipitation: belowPrecipitation: normalPrecipitation: aboveTemp.: belowTemp.: normalTemp.: above
Northwest17.027.055.023.029.048.0
North27.030.043.021.032.047.0
Northeast30.032.037.011.026.063.0
North-central27.033.040.012.022.066.0
West-central26.032.042.010.020.070.0
Central35.033.033.05.026.069.0
South48.029.024.014.026.060.0
East52.029.019.013.021.066.0
Yucatán Peninsula48.029.023.012.019.068.0

Source: NOAA CPC

Probabilistic outlook from the North American Multi-Model Ensemble (NMME), initialised in September 2026, relative to 1991–2020 terciles. It is not an official forecast: consult the national meteorological service.

Precipitation, September 2026: above normal is favoured over 25% of the country and below normal over 39%.

Mean temperature, September 2026: above normal is favoured over 97% of the country and below normal over 0%.

Precipitation, Sep–Nov 2026: above normal is favoured over 41% of the country and below normal over 22%.

Mean temperature, Sep–Nov 2026: above normal is favoured over 92% of the country and below normal over 0%.

10 Annexes

Report climate regions

Report climate regions

Monthly precipitation by state (mm)

StateJanFebMarAprMayJunJulAug
Aguascalientes7.00.00.911.79.5155.4107.075.6
Baja California16.424.36.77.21.60.14.98.6
Baja California Sur18.62.20.30.50.30.19.139.5
Campeche29.917.455.125.0110.5176.8100.7181.6
Chiapas51.129.855.740.1123.9269.5152.2104.6
Chihuahua27.315.213.110.710.071.186.157.9
Ciudad de México1.00.12.557.599.9225.1159.5180.7
Coahuila14.60.61.819.434.851.462.711.3
Colima18.90.00.91.43.0146.0159.9191.9
Durango33.51.17.54.918.391.1140.0107.2
Guanajuato11.70.00.840.914.2160.285.978.1
Guerrero5.85.61.221.539.8231.9160.0175.6
Hidalgo8.02.315.341.5131.7197.268.576.1
Jalisco15.70.79.08.78.6171.9187.5168.2
Estado de México8.60.42.861.591.2207.6145.0158.1
Michoacán13.90.12.317.120.6178.0193.8140.4
Morelos0.11.21.744.557.3281.8135.1101.3
Nayarit15.00.68.10.54.9162.3287.9172.2
Nuevo León7.50.14.857.993.4113.732.426.3
Oaxaca18.115.414.546.388.1284.3150.2117.7
Puebla9.16.312.154.089.6222.5109.475.4
Querétaro5.80.33.545.274.1187.858.068.1
Quintana Roo39.620.6116.551.6175.7113.484.8123.0
San Luis Potosí9.30.74.624.664.8169.356.040.5
Sinaloa36.94.68.11.66.354.0224.7195.7
Sonora38.111.616.34.23.214.1102.982.2
Tabasco136.743.6114.752.884.0205.9108.7113.8
Tamaulipas4.10.12.857.5134.1177.533.823.1
Tlaxcala1.40.04.588.5100.4174.698.083.2
Veracruz51.127.325.448.1103.2300.7194.2158.9
Yucatán21.810.468.639.9164.0190.6121.0162.1
Zacatecas13.20.02.78.313.7113.776.266.3

CSV

Source: UCSB Climate Hazards Center

Monthly maximum temperature by state (°C)

StateJanFebMarAprMayJunJulAug
Aguascalientes22.827.428.331.331.927.627.828.7
Baja California21.223.228.125.427.231.633.834.5
Baja California Sur25.527.530.130.130.333.535.936.7
Campeche28.530.132.435.437.035.535.335.6
Chiapas27.829.130.833.134.532.532.632.9
Chihuahua19.124.129.129.332.435.534.134.6
Ciudad de México21.023.823.025.926.222.823.724.2
Coahuila20.627.730.730.433.535.434.836.9
Colima31.131.932.633.634.833.234.234.1
Durango22.327.229.432.132.832.931.232.1
Guanajuato25.129.229.732.833.529.229.830.3
Guerrero32.133.733.535.235.831.833.633.4
Hidalgo22.225.926.529.630.728.128.329.1
Jalisco27.430.030.933.234.230.230.430.7
Estado de México24.127.326.629.329.725.826.526.8
Michoacán30.833.433.835.836.431.632.232.4
Morelos29.032.332.134.935.029.831.632.3
Nayarit28.430.331.233.334.531.331.632.6
Nuevo León22.428.631.129.131.833.534.936.1
Oaxaca28.930.131.433.834.631.231.632.0
Puebla25.928.628.831.232.228.829.429.9
Querétaro23.427.628.430.932.128.628.829.9
Quintana Roo29.030.232.033.735.134.635.135.5
San Luis Potosí23.228.229.331.932.830.330.931.8
Sinaloa29.130.832.735.136.436.636.636.3
Sonora23.527.132.331.634.338.637.738.3
Tabasco27.128.730.834.136.034.735.035.0
Tamaulipas23.429.031.931.333.634.436.537.8
Tlaxcala22.725.424.827.328.024.725.525.7
Veracruz25.227.329.432.334.533.332.833.1
Yucatán29.731.533.335.737.636.337.036.6
Zacatecas20.725.826.729.830.327.827.828.5

CSV

Source: NOAA CPC / PSL

Monthly mean temperature by state (°C)

StateJanFebMarAprMayJunJulAug
Aguascalientes14.817.619.021.823.621.421.221.4
Baja California16.217.621.820.221.526.029.029.9
Baja California Sur19.721.023.723.823.827.530.031.3
Campeche22.623.326.429.231.030.329.729.8
Chiapas22.522.725.327.428.827.627.527.9
Chihuahua10.514.618.920.523.127.226.526.5
Ciudad de México12.714.414.917.918.416.617.017.3
Coahuila12.818.421.823.125.828.428.129.5
Colima25.225.625.827.229.128.629.028.9
Durango13.917.119.422.123.725.223.924.3
Guanajuato16.919.320.523.725.122.822.723.0
Guerrero24.625.525.727.929.026.427.227.1
Hidalgo14.916.818.221.522.921.921.521.9
Jalisco19.421.121.924.125.924.324.224.2
Estado de México15.216.717.520.521.319.419.319.5
Michoacán22.023.724.326.728.025.425.425.3
Morelos19.722.123.126.125.922.523.523.9
Nayarit21.222.223.225.126.826.226.126.5
Nuevo León15.020.022.722.925.327.227.828.8
Oaxaca21.121.523.626.227.525.525.425.8
Puebla17.218.519.822.623.822.221.922.1
Querétaro16.418.720.123.224.422.622.422.9
Quintana Roo23.223.526.228.130.230.129.930.1
San Luis Potosí15.418.320.123.424.623.623.424.2
Sinaloa20.922.024.826.327.830.230.330.0
Sonora16.219.223.523.726.431.531.731.9
Tabasco23.423.926.829.631.430.430.530.5
Tamaulipas16.720.724.025.527.529.129.630.5
Tlaxcala13.214.615.217.819.118.017.717.7
Veracruz20.521.624.227.028.928.427.927.9
Yucatán23.324.026.628.630.930.430.430.0
Zacatecas13.416.817.920.822.021.020.821.2

CSV

Source: NOAA CPC / PSL

Monthly minimum temperature by state (°C)

StateJanFebMarAprMayJunJulAug
Aguascalientes6.87.99.712.415.415.214.514.2
Baja California11.212.115.515.015.720.424.225.3
Baja California Sur14.014.517.217.417.221.524.125.8
Campeche16.716.520.422.925.025.124.123.9
Chiapas17.116.319.921.723.122.722.422.8
Chihuahua2.05.08.611.813.818.818.818.4
Ciudad de México4.55.06.79.910.510.410.310.4
Coahuila4.99.112.915.918.121.421.522.0
Colima19.319.418.920.923.424.023.923.6
Durango5.57.19.512.114.617.416.516.4
Guanajuato8.69.411.214.716.716.515.515.7
Guerrero17.217.217.920.522.221.020.920.8
Hidalgo7.77.89.813.515.015.614.614.7
Jalisco11.312.212.915.017.618.417.917.7
Estado de México6.36.18.411.712.813.012.212.3
Michoacán13.313.914.817.619.619.318.618.2
Morelos10.511.814.217.316.915.215.315.4
Nayarit14.014.215.216.819.221.020.620.5
Nuevo León7.711.514.316.718.720.820.821.4
Oaxaca13.412.915.818.620.519.919.319.7
Puebla8.58.410.813.915.415.614.314.3
Querétaro9.49.811.915.516.716.516.015.9
Quintana Roo17.516.720.422.525.325.724.824.7
San Luis Potosí7.58.510.914.816.417.016.016.6
Sinaloa12.813.316.917.619.323.724.023.7
Sonora8.811.314.815.818.424.525.825.4
Tabasco19.719.222.825.026.726.226.125.9
Tamaulipas10.012.316.119.721.523.722.823.2
Tlaxcala3.83.75.68.310.311.29.89.7
Veracruz15.815.918.921.823.223.423.022.8
Yucatán16.916.520.021.624.224.423.823.4
Zacatecas6.17.79.211.913.714.313.813.9

CSV

Source: NOAA CPC / PSL

Stations used

IdNameStateLatitudeLongitudeAltitude (m)Days with data (Tmax) (%)
MXM00076040Ejido Nuevo Leon (Obs)Baja California32.4−115.211.30.0
MXM00076055San Felipe BcnBaja California31.0−114.815.00.0
MXM00076061Puerto PenascoSonora31.3−113.562.032.0
MXM00076118Nacozari (Smn)Sonora30.4−109.71099.70.0
MXM00076311ChoixSinaloa26.7−108.3237.761.0
MXM00076323Hidalgo Del ParralChihuahua26.9−105.71661.00.0
MXM00076390SaltilloCoahuila25.4−101.01790.00.0
MXM00076402Ciudad ConstitucionBaja California Sur24.9−111.748.00.0
MXM00076405La Paz (City)Baja California Sur24.2−110.318.00.0
MXM00076423DurangoDurango24.1−104.61872.077.0
MXM00076458Colonia Juan CarrasSinaloa23.2−106.44.077.0
MXM00076491Ciudad VictoriaTamaulipas23.7−99.1355.00.0
MXM00076519ColotlanJalisco22.1−103.31673.00.0
MXM00076525Zacatecas Zac. (La BufaZacatecas22.8−102.62612.00.0
MXM00076548TampicoTamaulipas22.2−97.825.065.0
MXM00076573Lagos De MorenoJalisco21.4−101.91942.00.0
MXM00076581Rio VerdeSan Luis Potosí21.9−100.0983.074.0
MXM00076593ProgresoYucatán21.3−89.72.40.0
MXM00076612GuadalajaraJalisco20.7−103.41583.023.0
MXM00076632PachucaHidalgo20.1−98.82435.00.0
MXM00076634TulancingoHidalgo20.1−98.42181.00.0
MXM00076640Tuxpan.Ver.Veracruz20.9−97.428.068.0
MXM00076647ValladolidYucatán20.7−88.227.00.0
MXM00076654ManzanilloColima19.1−104.33.048.0
MXM00076656Ciudad GuzmanJalisco19.7−103.51515.052.0
MXM00076662ZamoraMichoacán20.0−102.31540.081.0
MXM00076665MoreliaMichoacán19.7−101.21913.019.0
MXM00076675Toluca (Obs)Estado de México19.3−99.72725.80.0
MXM00076680Mexico CityCiudad de México19.4−99.22303.00.0
MXM00076683Tlaxcala De Xicontecatl (Dge)Tlaxcala19.3−98.22229.935.0
MXM00076687JalapaVeracruz19.6−96.91389.019.0
MXM00076692Hacienda Ylang Ylang VeracruzVeracruz19.1−96.116.029.0
MXM00076737OrizabaVeracruz18.9−97.11259.045.0
MXM00076741CoatzacoalcosVeracruz18.1−94.422.029.0
MXM00076743VillahermosaTabasco18.0−92.916.00.0
MXM00076762Chilpancingo Ro.Guerrero17.6−99.51265.00.0
MXM00076773Huajuapan De Leon (Dge)Oaxaca17.8−97.81583.729.0
MXM00076775OaxacaOaxaca17.1−96.71518.077.0
MXM00076805AcapulcoGuerrero16.8−99.93.00.0
MXM00076833Salina CruzOaxaca16.2−95.29.80.0
MXM00076840Temosachi (Obs)Chihuahua28.9−107.81931.823.0
MXM00076843Francisco SarabiaChiapas16.8−93.31051.90.0
MXM00076845Sn. Cristobal Las CasasChiapas16.8−92.62116.065.0
MXM00076848ComitanChiapas16.2−92.11646.071.0
MXM00076855Puerto AngelOaxaca15.7−96.546.00.0
MXM00076903TapachulaChiapas14.9−92.2118.00.0

CSV

Source: NOAA NCEI

11 Glossary, methodology and sources

Anomaly: difference between the observed value and its 1991–2020 normal. Percent of normal: observed total divided by the normal, times 100. Station record: most extreme daily value for the same month in all earlier years of record (at least 20 years).

Temperature: CPC_TEMP (0.5° daily grid); mean temperature is (Tmax + Tmin)/2. Precipitation: CHIRPS. National, regional and state averages are weighted by the area of each grid cell inside each polygon. Normals refer to 1991-2020; ranks compare values rounded to one decimal. Stations: GHCN-Daily (NOAA NCEI); values flagged by its quality control are discarded, as are daily values more than 5 robust standard deviations from the station median and variables whose monthly anomaly differs by more than 3 °C from the gridded analysis. Period means require at least 80% of days with data and station normals at least 20 complete years. This report is generated automatically and does not replace official information from the national meteorological service.

SourceProductLicenseCitation
UCSB Climate Hazards CenterCHIRPS v3.0, 0.05°See provider termsClimate Hazards Center, UC Santa Barbara. CHIRPS v3.0.
NOAA CPCONI, Niño-region SST indices (OISST v2.1), NAO and AOPublic domain (NOAA)NOAA Climate Prediction Center climate indices.
NOAA CPC / PSLCPC Global Unified Gauge-Based Analysis of Daily Precipitation, 0.5°Public domain (NOAA)CPC Global Unified Precipitation data provided by NOAA PSL, Boulder, CO, USA.
NOAA CPC / PSLCPC Global Unified Temperature, daily 0.5°Public domain (NOAA)CPC Global Unified Temperature data provided by NOAA PSL, Boulder, CO, USA.
NOAA NCEI / PSLExtended Reconstructed SST v5 (ERSST v5), 2°Public domain (NOAA)Huang et al. (2017), J. Climate, doi:10.1175/JCLI-D-16-0836.1
GDACSGlobal Disaster Alert and Coordination System event listSee provider terms—
NOAA NCEIGHCN-DailyPublic domain (NOAA)Menne et al. (2012), J. Atmos. Oceanic Technol., doi:10.1175/JTECH-D-11-00103.1
NOAA NCEIIBTrACS v04r01 tropical-cyclone best tracksPublic domain (NOAA)Knapp et al. (2010), Bull. Amer. Meteor. Soc., doi:10.1175/2009BAMS2755.1
NOAA NCEIPacific Decadal Oscillation index (ERSST v5)Public domain (NOAA)—
NOAA CPCNorth American Multi-Model Ensemble (NMME) tercile probabilities, 1°Public domain (NOAA)Kirtman et al. (2014), Bull. Amer. Meteor. Soc., doi:10.1175/BAMS-D-12-00050.1
NOAA PSLReal-time OLR MJO Index (ROMI)Public domain (NOAA)Kiladis et al. (2014), Mon. Wea. Rev., doi:10.1175/MWR-D-13-00301.1
geoBoundariesgeoBoundaries gbOpen (Instituto Nacional de Estadística y Geografía (INEGI))Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)—

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