Aguascalientes climate — normals and trends
Aguascalientes (Mexico) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 17.6 °C and it receives 447 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is May (21.6 °C on average) and the coldest is January (12.7 °C). Rainfall peaks in July.
Aguascalientes averages 1 frost days, 30 hot days (≥ 30 °C) and 67 rainy days per year.
Aguascalientes has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.2 °C (on 26 May 2024) and the coldest -5.5 °C (on 24 January 1981).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
AguascalientesAguascalientes
- coords
- 21.88°, -102.28°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.6°C
Average daily high
24.8°C
Average daily low
11.1°C
Annual rainfall
447mm
Sunshine / day
11.1h
Mean relative humidity
51%
Average peak wind
16.7km/h
Seasonal range
8.9°C
Frost days (< 0 °C)
1 d/yr
Hot days (≥ 30 °C)
30 d/yr
Rainy days (≥ 1 mm)
67 d/yr
Annual snowfall
0.2 cm
Average feels-like high
23.1 °C
Average feels-like low
9.3 °C
Average peak gust
34.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
22.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.59 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
36.2 °C
26 May 2024
Coldest day
-5.5 °C
24 January 1981
Wettest day
66 mm
14 July 1983
Windiest day
49.0 km/h
4 March 1983
Strongest gust
92.5 km/h
2 March 2001
Hottest feels-like
36.3 °C
24 May 2024
Coldest feels-like
-11.3 °C
13 December 1997
Snowiest day
6.9 cm
10 January 1967
Sunniest day
13.2 h
28 June 1974
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 22.3 °C | +2.0 °C | 8 mm | -8 mm |
| Feb | 26.2 °C | +3.7 °C | 0 mm | -10 mm |
| Mar | 28.3 °C | +2.9 °C | 1 mm | -6 mm |
| Apr | 29.6 °C | +1.8 °C | 0 mm | -9 mm |
| May | 31.2 °C | +2.0 °C | 30 mm | +3 mm |
| Jun | 26.9 °C | -0.9 °C | 84 mm | +9 mm |
| Jul | 25.2 °C | -0.7 °C | 150 mm | +54 mm |
| Aug | 26.8 °C | +0.8 °C | 139 mm | +55 mm |
| Sep | 26.6 °C | +1.7 °C | 76 mm | +4 mm |
| Oct | 27.1 °C | +2.7 °C | 25 mm | -8 mm |
| Nov | 26.3 °C | +3.2 °C | 1 mm | -9 mm |
| Dec | 23.5 °C | +2.6 °C | 5 mm | -5 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Aguascalientes?
Aguascalientes has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 17.6 °C and it receives 447 mm of precipitation per year.
What is the hottest day ever recorded in Aguascalientes?
The hottest day measured in Aguascalientes between 1940 and 2025 was 26 May 2024, reaching 36.2 °C.
What is the coldest day in Aguascalientes?
The coldest day measured in Aguascalientes between 1940 and 2025 was 24 January 1981, at -5.5 °C.
Does it snow in Aguascalientes?
Almost never: Aguascalientes sees virtually no snow, with about 1 frost days per year.
Has the climate of Aguascalientes warmed?
Yes: Aguascalientes warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aguascalientes?
The wettest day measured in Aguascalientes between 1940 and 2025 was 14 July 1983, with 66 mm of rain in 24 hours.
What was the windiest day in Aguascalientes?
The windiest day measured in Aguascalientes between 1940 and 2025 was 4 March 1983, with winds reaching 49.0 km/h.
What is the warmest month in Aguascalientes?
The warmest month in Aguascalientes is May (21.6 °C on average); the coldest is January (12.7 °C).
How much does it rain in Aguascalientes?
Aguascalientes receives on average 447 mm of precipitation per year, spread over about 67 rainy days.
Is it sunny in Aguascalientes?
Aguascalientes gets on average 11.1 hours of sunshine per day, roughly 4,052 hours per year over 1940-2025.
What is the biggest single-day snowfall in Aguascalientes?
The heaviest 24-hour snowfall measured in Aguascalientes between 1940 and 2025 was 10 January 1967, with 6.9 cm.
Are there tropical nights in Aguascalientes?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Aguascalientes.
What was the most extreme apparent temperature in Aguascalientes?
In Aguascalientes, between 1940 and 2025, the highest apparent temperature reached 36.3 °C on 24 May 2024, and the lowest was -11.3 °C on 13 December 1997.
Compare Aguascalientes with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aguascalientes