Tetla climate — normals and trends
Tetla (Mexico) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 13.2 °C and it receives 756 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 (15.2 °C on average) and the coldest is January (10.3 °C). Rainfall peaks in June.
Tetla averages 4 frost days, 0 hot days (≥ 30 °C) and 136 rainy days per year.
Tetla has warmed by +2.4 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 6 to 2 per year over the period.
The hottest day of the period reached 31.3 °C (on 8 May 1998) and the coldest -7.0 °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
TetlaTlaxcala
- coords
- 19.44°, -98.10°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.2°C
Average daily high
20.1°C
Average daily low
7.6°C
Annual rainfall
756mm
Sunshine / day
10.6h
Mean relative humidity
70%
Average peak wind
12.4km/h
Seasonal range
4.9°C
Frost days (< 0 °C)
4 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
136 d/yr
Annual snowfall
0.2 cm
Average feels-like high
19.0 °C
Average feels-like low
6.0 °C
Average peak gust
34.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
20.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.82 · 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
-7.0 °C
25 February 1976
Wettest day
99 mm
21 August 2021
Windiest day
35.4 km/h
24 March 1957
Strongest gust
99.7 km/h
10 March 2016
Hottest feels-like
31.2 °C
22 May 2024
Coldest feels-like
-11.4 °C
25 February 1976
Snowiest day
13.0 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 | 18.9 °C | +1.0 °C | 7 mm | -7 mm |
| Feb | 20.5 °C | +1.0 °C | 43 mm | +27 mm |
| Mar | 23.1 °C | +1.6 °C | 24 mm | -5 mm |
| Apr | 23.5 °C | +1.1 °C | 18 mm | -44 mm |
| May | 23.9 °C | +1.7 °C | 135 mm | +42 mm |
| Jun | 19.9 °C | -1.1 °C | 268 mm | +140 mm |
| Jul | 21.2 °C | +1.0 °C | 106 mm | +1 mm |
| Aug | 21.8 °C | +1.2 °C | 114 mm | +8 mm |
| Sep | 21.3 °C | +1.7 °C | 139 mm | +24 mm |
| Oct | 20.4 °C | +1.2 °C | 82 mm | +28 mm |
| Nov | 20.4 °C | +1.7 °C | 9 mm | -13 mm |
| Dec | 18.1 °C | +0.1 °C | 36 mm | +25 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 Tetla?
Tetla has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 13.2 °C and it receives 756 mm of precipitation per year.
What is the hottest day ever recorded in Tetla?
The hottest day measured in Tetla between 1940 and 2025 was 8 May 1998, reaching 31.3 °C.
What is the coldest day in Tetla?
The coldest day measured in Tetla between 1940 and 2025 was 25 February 1976, at -7.0 °C.
Does it snow in Tetla?
Almost never: Tetla sees virtually no snow, with about 4 frost days per year.
Has the climate of Tetla warmed?
Yes: Tetla warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tetla?
The wettest day measured in Tetla between 1940 and 2025 was 21 August 2021, with 99 mm of rain in 24 hours.
What was the windiest day in Tetla?
The windiest day measured in Tetla between 1940 and 2025 was 24 March 1957, with winds reaching 35.4 km/h.
What is the warmest month in Tetla?
The warmest month in Tetla is May (15.2 °C on average); the coldest is January (10.3 °C).
How much does it rain in Tetla?
Tetla receives on average 756 mm of precipitation per year, spread over about 136 rainy days.
Is it sunny in Tetla?
Tetla gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
What is the biggest single-day snowfall in Tetla?
The heaviest 24-hour snowfall measured in Tetla between 1940 and 2025 was 11 January 1967, with 13.0 cm.
Are there tropical nights in Tetla?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Tetla.
What was the most extreme apparent temperature in Tetla?
In Tetla, between 1940 and 2025, the highest apparent temperature reached 31.2 °C on 22 May 2024, and the lowest was -11.4 °C on 25 February 1976.
Compare Tetla with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tetla