San Angelo climate — normals and trends
San Angelo (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 18.5 °C and it receives 564 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 July (28.5 °C on average) and the coldest is January (7.4 °C). Rainfall peaks in May.
San Angelo averages 30 frost days, 128 hot days (≥ 30 °C) and 72 rainy days per year.
San Angelo has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The hottest day of the period reached 43.0 °C (on 20 June 2023) and the coldest -23.2 °C (on 2 February 1985).
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
San AngeloTexas
- coords
- 31.46°, -100.44°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.5°C
Average daily high
24.9°C
Average daily low
12.8°C
Annual rainfall
564mm
Sunshine / day
10.1h
Mean relative humidity
57%
Average peak wind
22.9km/h
Seasonal range
21.1°C
Frost days (< 0 °C)
30 d/yr
Hot days (≥ 30 °C)
128 d/yr
Rainy days (≥ 1 mm)
72 d/yr
Annual snowfall
5.7 cm
Average feels-like high
23.4 °C
Average feels-like low
10.7 °C
Average peak gust
40.7 km/h
Tropical nights (≥ 20 °C)
104 d/yr
Solar radiation
18.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.33 · 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
43.0 °C
20 June 2023
Coldest day
-23.2 °C
2 February 1985
Wettest day
90 mm
6 September 1986
Windiest day
61.3 km/h
1 April 1983
Strongest gust
107.3 km/h
1 April 1983
Hottest feels-like
45.8 °C
21 June 2023
Coldest feels-like
-27.7 °C
2 February 1985
Snowiest day
11.6 cm
28 November 2001
Sunniest day
13.8 h
23 June 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 | 11.7 °C | -2.5 °C | 11 mm | -18 mm |
| Feb | 18.5 °C | +1.7 °C | 6 mm | -28 mm |
| Mar | 25.7 °C | +4.6 °C | 8 mm | -34 mm |
| Apr | 27.2 °C | +1.5 °C | 95 mm | +36 mm |
| May | 30.0 °C | +0.6 °C | 140 mm | +49 mm |
| Jun | 34.0 °C | +1.0 °C | 33 mm | -19 mm |
| Jul | 32.9 °C | -1.4 °C | 94 mm | +60 mm |
| Aug | 35.1 °C | +1.0 °C | 35 mm | -6 mm |
| Sep | 31.7 °C | +1.4 °C | 16 mm | -44 mm |
| Oct | 29.3 °C | +3.7 °C | 21 mm | -39 mm |
| Nov | 24.0 °C | +4.7 °C | 45 mm | +11 mm |
| Dec | 19.7 °C | +4.2 °C | 2 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 San Angelo?
San Angelo has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.5 °C and it receives 564 mm of precipitation per year.
What is the hottest day ever recorded in San Angelo?
The hottest day measured in San Angelo between 1940 and 2025 was 20 June 2023, reaching 43.0 °C.
What is the coldest day in San Angelo?
The coldest day measured in San Angelo between 1940 and 2025 was 2 February 1985, at -23.2 °C.
Does it snow in San Angelo?
Yes. San Angelo gets on average 5.7 cm of snow per year and has around 30 frost days.
Has the climate of San Angelo warmed?
Yes: San Angelo warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in San Angelo?
The wettest day measured in San Angelo between 1940 and 2025 was 6 September 1986, with 90 mm of rain in 24 hours.
What was the windiest day in San Angelo?
The windiest day measured in San Angelo between 1940 and 2025 was 1 April 1983, with winds reaching 61.3 km/h.
What is the warmest month in San Angelo?
The warmest month in San Angelo is July (28.5 °C on average); the coldest is January (7.4 °C).
How much does it rain in San Angelo?
San Angelo receives on average 564 mm of precipitation per year, spread over about 72 rainy days.
Is it sunny in San Angelo?
San Angelo gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
What is the biggest single-day snowfall in San Angelo?
The heaviest 24-hour snowfall measured in San Angelo between 1940 and 2025 was 28 November 2001, with 11.6 cm.
Are there tropical nights in San Angelo?
Yes: San Angelo has on average 104 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in San Angelo?
In San Angelo, between 1940 and 2025, the highest apparent temperature reached 45.8 °C on 21 June 2023, and the lowest was -27.7 °C on 2 February 1985.
Compare San Angelo with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around San Angelo