Apan climate — normals and trends
Apan (Mexico) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 12.6 °C and it receives 753 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 (14.8 °C on average) and the coldest is January (9.8 °C). Rainfall peaks in September.
Apan averages 6 frost days, 0 hot days (≥ 30 °C) and 131 rainy days per year.
Apan has warmed by +2.7 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 10 to 2 per year over the period.
The hottest day of the period reached 31.3 °C (on 8 May 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
ApanHidalgo
- coords
- 19.71°, -98.45°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.6°C
Average daily high
19.7°C
Average daily low
6.9°C
Annual rainfall
753mm
Sunshine / day
10.7h
Mean relative humidity
70%
Average peak wind
13.1km/h
Seasonal range
5.0°C
Frost days (< 0 °C)
6 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
131 d/yr
Annual snowfall
0.3 cm
Average feels-like high
18.6 °C
Average feels-like low
5.0 °C
Average peak gust
35.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
20.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.85 · 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
31.3 °C
8 May 1998
Coldest day
-6.9 °C
12 January 1956
Wettest day
102 mm
21 August 2021
Windiest day
37.9 km/h
24 March 1957
Strongest gust
99.7 km/h
21 August 2021
Hottest feels-like
30.3 °C
5 April 1998
Coldest feels-like
-10.5 °C
12 January 1956
Snowiest day
15.8 cm
11 January 1967
Sunniest day
13.0 h
18 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 | 19.2 °C | +1.5 °C | 24 mm | +5 mm |
| Feb | 20.1 °C | +0.6 °C | 55 mm | +36 mm |
| Mar | 23.2 °C | +1.5 °C | 16 mm | -12 mm |
| Apr | 24.0 °C | +1.5 °C | 7 mm | -48 mm |
| May | 24.1 °C | +2.0 °C | 121 mm | +46 mm |
| Jun | 19.9 °C | -0.8 °C | 220 mm | +104 mm |
| Jul | 20.6 °C | +1.1 °C | 112 mm | -4 mm |
| Aug | 20.9 °C | +1.2 °C | 132 mm | +22 mm |
| Sep | 20.8 °C | +1.8 °C | 134 mm | +17 mm |
| Oct | 20.0 °C | +1.3 °C | 123 mm | +64 mm |
| Nov | 19.9 °C | +1.7 °C | 5 mm | -20 mm |
| Dec | 17.9 °C | +0.2 °C | 31 mm | +17 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 Apan?
Apan has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 12.6 °C and it receives 753 mm of precipitation per year.
What is the hottest day ever recorded in Apan?
The hottest day measured in Apan between 1940 and 2025 was 8 May 1998, reaching 31.3 °C.
What is the coldest day in Apan?
The coldest day measured in Apan between 1940 and 2025 was 12 January 1956, at -6.9 °C.
Does it snow in Apan?
Almost never: Apan sees virtually no snow, with about 6 frost days per year.
Has the climate of Apan warmed?
Yes: Apan warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Apan?
The wettest day measured in Apan between 1940 and 2025 was 21 August 2021, with 102 mm of rain in 24 hours.
What was the windiest day in Apan?
The windiest day measured in Apan between 1940 and 2025 was 24 March 1957, with winds reaching 37.9 km/h.
What is the warmest month in Apan?
The warmest month in Apan is May (14.8 °C on average); the coldest is January (9.8 °C).
How much does it rain in Apan?
Apan receives on average 753 mm of precipitation per year, spread over about 131 rainy days.
Is it sunny in Apan?
Apan gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
What is the biggest single-day snowfall in Apan?
The heaviest 24-hour snowfall measured in Apan between 1940 and 2025 was 11 January 1967, with 15.8 cm.
Are there tropical nights in Apan?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Apan.
What was the most extreme apparent temperature in Apan?
In Apan, between 1940 and 2025, the highest apparent temperature reached 30.3 °C on 5 April 1998, and the lowest was -10.5 °C on 12 January 1956.
Compare Apan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Apan