Actopan climate — normals and trends
Actopan (Mexico) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 15.9 °C and it receives 589 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 (18.9 °C on average) and the coldest is January (12.4 °C). Rainfall peaks in September.
Actopan averages 2 frost days, 12 hot days (≥ 30 °C) and 107 rainy days per year.
Actopan has warmed by +2.7 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 3 to 1 per year over the period.
The hottest day of the period reached 35.3 °C (on 15 April 1998) and the coldest -6.9 °C (on 12 January 1956).
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
ActopanHidalgo
- coords
- 20.27°, -98.94°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.9°C
Average daily high
23.0°C
Average daily low
10.3°C
Annual rainfall
589mm
Sunshine / day
10.5h
Mean relative humidity
70%
Average peak wind
15.6km/h
Seasonal range
6.5°C
Frost days (< 0 °C)
2 d/yr
Hot days (≥ 30 °C)
12 d/yr
Rainy days (≥ 1 mm)
107 d/yr
Annual snowfall
0.2 cm
Average feels-like high
22.1 °C
Average feels-like low
9.4 °C
Average peak gust
37.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
20.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.81 · 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
35.3 °C
15 April 1998
Coldest day
-6.9 °C
12 January 1956
Wettest day
83 mm
27 September 2016
Windiest day
39.7 km/h
10 March 2016
Strongest gust
96.1 km/h
9 March 2016
Hottest feels-like
35.4 °C
9 May 2024
Coldest feels-like
-10.9 °C
12 January 1956
Snowiest day
14.6 cm
11 January 1967
Sunniest day
13.0 h
17 May 1940
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 | 22.0 °C | +1.6 °C | 9 mm | -3 mm |
| Feb | 24.1 °C | +1.7 °C | 27 mm | +16 mm |
| Mar | 27.7 °C | +2.7 °C | 5 mm | -10 mm |
| Apr | 28.0 °C | +1.6 °C | 3 mm | -26 mm |
| May | 29.0 °C | +2.6 °C | 72 mm | +29 mm |
| Jun | 22.9 °C | -1.4 °C | 296 mm | +199 mm |
| Jul | 23.3 °C | +0.6 °C | 128 mm | +23 mm |
| Aug | 24.0 °C | +0.9 °C | 100 mm | +6 mm |
| Sep | 23.8 °C | +1.8 °C | 118 mm | +10 mm |
| Oct | 22.6 °C | +1.3 °C | 153 mm | +102 mm |
| Nov | 22.5 °C | +1.5 °C | 6 mm | -11 mm |
| Dec | 20.6 °C | +0.2 °C | 18 mm | +10 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 Actopan?
Actopan has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 15.9 °C and it receives 589 mm of precipitation per year.
What is the hottest day ever recorded in Actopan?
The hottest day measured in Actopan between 1940 and 2025 was 15 April 1998, reaching 35.3 °C.
What is the coldest day in Actopan?
The coldest day measured in Actopan between 1940 and 2025 was 12 January 1956, at -6.9 °C.
Does it snow in Actopan?
Almost never: Actopan sees virtually no snow, with about 2 frost days per year.
Has the climate of Actopan warmed?
Yes: Actopan warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Actopan?
The wettest day measured in Actopan between 1940 and 2025 was 27 September 2016, with 83 mm of rain in 24 hours.
What was the windiest day in Actopan?
The windiest day measured in Actopan between 1940 and 2025 was 10 March 2016, with winds reaching 39.7 km/h.
What is the warmest month in Actopan?
The warmest month in Actopan is May (18.9 °C on average); the coldest is January (12.4 °C).
How much does it rain in Actopan?
Actopan receives on average 589 mm of precipitation per year, spread over about 107 rainy days.
Is it sunny in Actopan?
Actopan gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
What is the biggest single-day snowfall in Actopan?
The heaviest 24-hour snowfall measured in Actopan between 1940 and 2025 was 11 January 1967, with 14.6 cm.
Are there tropical nights in Actopan?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Actopan.
What was the most extreme apparent temperature in Actopan?
In Actopan, between 1940 and 2025, the highest apparent temperature reached 35.4 °C on 9 May 2024, and the lowest was -10.9 °C on 12 January 1956.
Compare Actopan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Actopan