Nochistlán de Mejía climate — normals and trends
Nochistlán de Mejía (Mexico) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 18.6 °C and it receives 747 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 (22.8 °C on average) and the coldest is January (14.3 °C). Rainfall peaks in July.
Nochistlán de Mejía averages 0 frost days, 41 hot days (≥ 30 °C) and 92 rainy days per year.
Nochistlán de Mejía has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.9 °C (on 4 June 1982) and the coldest -4.8 °C (on 27 January 1980).
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
Nochistlán de MejíaZacatecas
- coords
- 21.36°, -102.85°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.6°C
Average daily high
25.5°C
Average daily low
12.2°C
Annual rainfall
747mm
Sunshine / day
11.1h
Mean relative humidity
53%
Average peak wind
14.1km/h
Seasonal range
8.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
41 d/yr
Rainy days (≥ 1 mm)
92 d/yr
Annual snowfall
0.1 cm
Average feels-like high
24.7 °C
Average feels-like low
10.7 °C
Average peak gust
32.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
22.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.62 · 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
36.9 °C
4 June 1982
Coldest day
-4.8 °C
27 January 1980
Wettest day
59 mm
3 February 2010
Windiest day
41.1 km/h
4 March 1983
Strongest gust
84.2 km/h
4 March 1983
Hottest feels-like
37.5 °C
3 June 1982
Coldest feels-like
-8.1 °C
27 January 1980
Snowiest day
5.3 cm
12 January 1967
Sunniest day
13.2 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 | 23.5 °C | +1.9 °C | 5 mm | -12 mm |
| Feb | 27.2 °C | +3.6 °C | 1 mm | -9 mm |
| Mar | 29.0 °C | +2.5 °C | 0 mm | -5 mm |
| Apr | 30.4 °C | +1.6 °C | 2 mm | -5 mm |
| May | 31.9 °C | +1.6 °C | 13 mm | -13 mm |
| Jun | 27.9 °C | -0.5 °C | 223 mm | +87 mm |
| Jul | 26.0 °C | +0.4 °C | 201 mm | +16 mm |
| Aug | 26.5 °C | +0.9 °C | 220 mm | +58 mm |
| Sep | 26.5 °C | +1.4 °C | 213 mm | +84 mm |
| Oct | 26.9 °C | +2.0 °C | 51 mm | +2 mm |
| Nov | 26.5 °C | +2.5 °C | 0 mm | -10 mm |
| Dec | 24.2 °C | +2.2 °C | 9 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 Nochistlán de Mejía?
Nochistlán de Mejía has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 18.6 °C and it receives 747 mm of precipitation per year.
What is the hottest day ever recorded in Nochistlán de Mejía?
The hottest day measured in Nochistlán de Mejía between 1940 and 2025 was 4 June 1982, reaching 36.9 °C.
What is the coldest day in Nochistlán de Mejía?
The coldest day measured in Nochistlán de Mejía between 1940 and 2025 was 27 January 1980, at -4.8 °C.
Does it snow in Nochistlán de Mejía?
Almost never: Nochistlán de Mejía sees virtually no snow, with about 0 frost days per year.
Has the climate of Nochistlán de Mejía warmed?
Yes: Nochistlán de Mejía warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nochistlán de Mejía?
The wettest day measured in Nochistlán de Mejía between 1940 and 2025 was 3 February 2010, with 59 mm of rain in 24 hours.
What was the windiest day in Nochistlán de Mejía?
The windiest day measured in Nochistlán de Mejía between 1940 and 2025 was 4 March 1983, with winds reaching 41.1 km/h.
What is the warmest month in Nochistlán de Mejía?
The warmest month in Nochistlán de Mejía is May (22.8 °C on average); the coldest is January (14.3 °C).
How much does it rain in Nochistlán de Mejía?
Nochistlán de Mejía receives on average 747 mm of precipitation per year, spread over about 92 rainy days.
Is it sunny in Nochistlán de Mejía?
Nochistlán de Mejía 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 Nochistlán de Mejía?
The heaviest 24-hour snowfall measured in Nochistlán de Mejía between 1940 and 2025 was 12 January 1967, with 5.3 cm.
Are there tropical nights in Nochistlán de Mejía?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Nochistlán de Mejía.
What was the most extreme apparent temperature in Nochistlán de Mejía?
In Nochistlán de Mejía, between 1940 and 2025, the highest apparent temperature reached 37.5 °C on 3 June 1982, and the lowest was -8.1 °C on 27 January 1980.
Compare Nochistlán de Mejía with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nochistlán de Mejía