Chignahuapan climate — normals and trends
Chignahuapan (Mexico) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 12.9 °C and it receives 1,327 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 (15.1 °C on average) and the coldest is January (9.9 °C). Rainfall peaks in September.
Chignahuapan averages 3 frost days, 0 hot days (≥ 30 °C) and 211 rainy days per year.
Chignahuapan has warmed by +2.6 °C between 1940 and 2025, or +0.30 °C per decade. This trend is statistically significant.
The number of frost days there went from about 6 to 1 per year over the period.
The hottest day of the period reached 29.8 °C (on 6 April 1998) and the coldest -5.3 °C (on 25 February 1976).
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
ChignahuapanPuebla
- coords
- 19.84°, -98.03°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.9°C
Average daily high
18.8°C
Average daily low
8.2°C
Annual rainfall
1,327mm
Sunshine / day
10.5h
Mean relative humidity
78%
Average peak wind
10.3km/h
Seasonal range
5.2°C
Frost days (< 0 °C)
3 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
211 d/yr
Annual snowfall
0.8 cm
Average feels-like high
18.6 °C
Average feels-like low
6.8 °C
Average peak gust
34.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
19.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.84 · 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
29.8 °C
6 April 1998
Coldest day
-5.3 °C
25 February 1976
Wettest day
177 mm
21 August 2021
Windiest day
31.4 km/h
9 March 2016
Strongest gust
104.0 km/h
21 August 2021
Hottest feels-like
31.6 °C
8 May 2024
Coldest feels-like
-8.7 °C
13 January 1956
Snowiest day
17.6 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 | 17.9 °C | +1.5 °C | 23 mm | -10 mm |
| Feb | 19.5 °C | +1.4 °C | 54 mm | +16 mm |
| Mar | 22.4 °C | +2.3 °C | 40 mm | -18 mm |
| Apr | 22.4 °C | +1.1 °C | 22 mm | -75 mm |
| May | 23.3 °C | +1.9 °C | 152 mm | +43 mm |
| Jun | 19.8 °C | -0.2 °C | 311 mm | +120 mm |
| Jul | 20.3 °C | +1.2 °C | 174 mm | -19 mm |
| Aug | 20.9 °C | +1.6 °C | 193 mm | -1 mm |
| Sep | 20.5 °C | +1.8 °C | 219 mm | +14 mm |
| Oct | 19.7 °C | +1.7 °C | 205 mm | +80 mm |
| Nov | 19.2 °C | +2.0 °C | 56 mm | +1 mm |
| Dec | 17.1 °C | +0.6 °C | 83 mm | +51 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 Chignahuapan?
Chignahuapan has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 12.9 °C and it receives 1,327 mm of precipitation per year.
What is the hottest day ever recorded in Chignahuapan?
The hottest day measured in Chignahuapan between 1940 and 2025 was 6 April 1998, reaching 29.8 °C.
What is the coldest day in Chignahuapan?
The coldest day measured in Chignahuapan between 1940 and 2025 was 25 February 1976, at -5.3 °C.
Does it snow in Chignahuapan?
Almost never: Chignahuapan sees virtually no snow, with about 3 frost days per year.
Has the climate of Chignahuapan warmed?
Yes: Chignahuapan warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Chignahuapan?
The wettest day measured in Chignahuapan between 1940 and 2025 was 21 August 2021, with 177 mm of rain in 24 hours.
What was the windiest day in Chignahuapan?
The windiest day measured in Chignahuapan between 1940 and 2025 was 9 March 2016, with winds reaching 31.4 km/h.
What is the warmest month in Chignahuapan?
The warmest month in Chignahuapan is May (15.1 °C on average); the coldest is January (9.9 °C).
How much does it rain in Chignahuapan?
Chignahuapan receives on average 1,327 mm of precipitation per year, spread over about 211 rainy days.
Is it sunny in Chignahuapan?
Chignahuapan 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 Chignahuapan?
The heaviest 24-hour snowfall measured in Chignahuapan between 1940 and 2025 was 11 January 1967, with 17.6 cm.
Are there tropical nights in Chignahuapan?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Chignahuapan.
What was the most extreme apparent temperature in Chignahuapan?
In Chignahuapan, between 1940 and 2025, the highest apparent temperature reached 31.6 °C on 8 May 2024, and the lowest was -8.7 °C on 13 January 1956.
Compare Chignahuapan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Chignahuapan