Zapotlanejo climate — normals and trends
Zapotlanejo (Mexico) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 19.9 °C and it receives 661 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 (23.4 °C on average) and the coldest is January (16.4 °C). Rainfall peaks in July.
Zapotlanejo averages 0 frost days, 28 hot days (≥ 30 °C) and 105 rainy days per year.
Zapotlanejo has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.7 °C (on 22 June 2023) and the coldest 2.2 °C (on 13 February 1960).
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
ZapotlanejoJalisco
- coords
- 20.62°, -103.07°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.9°C
Average daily high
25.5°C
Average daily low
15.0°C
Annual rainfall
661mm
Sunshine / day
10.8h
Mean relative humidity
61%
Average peak wind
11.6km/h
Seasonal range
7.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
28 d/yr
Rainy days (≥ 1 mm)
105 d/yr
Annual snowfall
0.0 cm
Average feels-like high
25.7 °C
Average feels-like low
14.9 °C
Average peak gust
28.8 km/h
Tropical nights (≥ 20 °C)
4 d/yr
Solar radiation
21.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.74 · 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
36.7 °C
22 June 2023
Coldest day
2.2 °C
13 February 1960
Wettest day
76 mm
1 January 1947
Windiest day
31.0 km/h
4 March 1983
Strongest gust
76.3 km/h
2 March 2001
Hottest feels-like
37.0 °C
21 June 2023
Coldest feels-like
-2.9 °C
13 February 1960
Snowiest day
0.8 cm
1 January 1947
Sunniest day
13.1 h
29 June 1942
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 | 23.8 °C | +1.7 °C | 5 mm | -11 mm |
| Feb | 26.7 °C | +2.8 °C | 2 mm | -6 mm |
| Mar | 28.7 °C | +2.2 °C | 0 mm | -5 mm |
| Apr | 29.9 °C | +1.4 °C | 0 mm | -5 mm |
| May | 30.9 °C | +1.2 °C | 13 mm | -9 mm |
| Jun | 27.7 °C | -0.2 °C | 214 mm | +89 mm |
| Jul | 26.6 °C | +1.1 °C | 137 mm | -26 mm |
| Aug | 26.7 °C | +1.3 °C | 206 mm | +64 mm |
| Sep | 27.0 °C | +1.9 °C | 198 mm | +82 mm |
| Oct | 26.9 °C | +2.1 °C | 38 mm | -4 mm |
| Nov | 26.1 °C | +2.2 °C | 0 mm | -9 mm |
| Dec | 24.3 °C | +1.9 °C | 10 mm | +1 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 Zapotlanejo?
Zapotlanejo has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 19.9 °C and it receives 661 mm of precipitation per year.
What is the hottest day ever recorded in Zapotlanejo?
The hottest day measured in Zapotlanejo between 1940 and 2025 was 22 June 2023, reaching 36.7 °C.
What is the coldest day in Zapotlanejo?
The coldest day measured in Zapotlanejo between 1940 and 2025 was 13 February 1960, at 2.2 °C.
Does it snow in Zapotlanejo?
Almost never: Zapotlanejo sees virtually no snow, with about 0 frost days per year.
Has the climate of Zapotlanejo warmed?
Yes: Zapotlanejo warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Zapotlanejo?
The wettest day measured in Zapotlanejo between 1940 and 2025 was 1 January 1947, with 76 mm of rain in 24 hours.
What was the windiest day in Zapotlanejo?
The windiest day measured in Zapotlanejo between 1940 and 2025 was 4 March 1983, with winds reaching 31.0 km/h.
What is the warmest month in Zapotlanejo?
The warmest month in Zapotlanejo is May (23.4 °C on average); the coldest is January (16.4 °C).
How much does it rain in Zapotlanejo?
Zapotlanejo receives on average 661 mm of precipitation per year, spread over about 105 rainy days.
Is it sunny in Zapotlanejo?
Zapotlanejo gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
What is the biggest single-day snowfall in Zapotlanejo?
The heaviest 24-hour snowfall measured in Zapotlanejo between 1940 and 2025 was 1 January 1947, with 0.8 cm.
Are there tropical nights in Zapotlanejo?
Yes: Zapotlanejo has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Zapotlanejo?
In Zapotlanejo, between 1940 and 2025, the highest apparent temperature reached 37.0 °C on 21 June 2023, and the lowest was -2.9 °C on 13 February 1960.
Compare Zapotlanejo with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Zapotlanejo