Naucalpan climate — normals and trends
Naucalpan (Mexico) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 13.9 °C and it receives 909 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 (16.3 °C on average) and the coldest is January (10.9 °C). Rainfall peaks in September.
Naucalpan averages 2 frost days, 1 hot days (≥ 30 °C) and 139 rainy days per year.
Naucalpan has warmed by +3.0 °C between 1940 and 2025, or +0.35 °C per decade. This trend is statistically significant.
The number of frost days there went from about 4 to 0 per year over the period.
The hottest day of the period reached 31.8 °C (on 8 May 1998) and the coldest -4.7 °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
NaucalpanMéxico
- coords
- 19.48°, -99.24°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.9°C
Average daily high
20.9°C
Average daily low
8.0°C
Annual rainfall
909mm
Sunshine / day
10.5h
Mean relative humidity
67%
Average peak wind
12.1km/h
Seasonal range
5.4°C
Frost days (< 0 °C)
2 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
139 d/yr
Annual snowfall
0.2 cm
Average feels-like high
20.1 °C
Average feels-like low
6.4 °C
Average peak gust
31.0 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
+3.0 °C
since 1940
+0.4 °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
31.8 °C
8 May 1998
Coldest day
-4.7 °C
12 January 1956
Wettest day
61 mm
8 October 1976
Windiest day
33.7 km/h
28 January 1966
Strongest gust
88.6 km/h
9 March 2016
Hottest feels-like
31.6 °C
11 May 2024
Coldest feels-like
-8.5 °C
12 January 1956
Snowiest day
16.1 cm
11 January 1967
Sunniest day
13.0 h
28 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 | 20.4 °C | +1.7 °C | 23 mm | +1 mm |
| Feb | 21.9 °C | +1.4 °C | 58 mm | +37 mm |
| Mar | 25.0 °C | +2.2 °C | 18 mm | -11 mm |
| Apr | 26.5 °C | +2.8 °C | 2 mm | -52 mm |
| May | 25.7 °C | +2.2 °C | 132 mm | +48 mm |
| Jun | 21.0 °C | -1.2 °C | 314 mm | +171 mm |
| Jul | 21.7 °C | +0.9 °C | 139 mm | -5 mm |
| Aug | 21.9 °C | +1.0 °C | 182 mm | +45 mm |
| Sep | 22.1 °C | +1.9 °C | 197 mm | +51 mm |
| Oct | 21.1 °C | +1.3 °C | 121 mm | +42 mm |
| Nov | 21.3 °C | +1.9 °C | 9 mm | -22 mm |
| Dec | 19.3 °C | +0.6 °C | 29 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 Naucalpan?
Naucalpan has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 13.9 °C and it receives 909 mm of precipitation per year.
What is the hottest day ever recorded in Naucalpan?
The hottest day measured in Naucalpan between 1940 and 2025 was 8 May 1998, reaching 31.8 °C.
What is the coldest day in Naucalpan?
The coldest day measured in Naucalpan between 1940 and 2025 was 12 January 1956, at -4.7 °C.
Does it snow in Naucalpan?
Almost never: Naucalpan sees virtually no snow, with about 2 frost days per year.
Has the climate of Naucalpan warmed?
Yes: Naucalpan warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Naucalpan?
The wettest day measured in Naucalpan between 1940 and 2025 was 8 October 1976, with 61 mm of rain in 24 hours.
What was the windiest day in Naucalpan?
The windiest day measured in Naucalpan between 1940 and 2025 was 28 January 1966, with winds reaching 33.7 km/h.
What is the warmest month in Naucalpan?
The warmest month in Naucalpan is May (16.3 °C on average); the coldest is January (10.9 °C).
How much does it rain in Naucalpan?
Naucalpan receives on average 909 mm of precipitation per year, spread over about 139 rainy days.
Is it sunny in Naucalpan?
Naucalpan 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 Naucalpan?
The heaviest 24-hour snowfall measured in Naucalpan between 1940 and 2025 was 11 January 1967, with 16.1 cm.
Are there tropical nights in Naucalpan?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Naucalpan.
What was the most extreme apparent temperature in Naucalpan?
In Naucalpan, between 1940 and 2025, the highest apparent temperature reached 31.6 °C on 11 May 2024, and the lowest was -8.5 °C on 12 January 1956.
Compare Naucalpan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Naucalpan