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San Angelo, Texas climate
Cfa Humid subtropical
San Angelo has a seasonal warm-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 36°C, while the coldest is January averaging around 1°C at night. Around 532 mm of precipitation falls each year, peaking in May (77 mm) and easing off in December (23 mm).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsSan Angelo climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 16 | 19 | 23 | 28 | 32 | 35 | 36 | 36 | 32 | 27 | 21 | 17 |
| Avg temp (°C) | 9 | 11 | 15 | 20 | 24 | 28 | 29 | 29 | 25 | 20 | 13 | 9 |
| Avg low (°C) | 1 | 3 | 8 | 11 | 17 | 21 | 22 | 22 | 18 | 12 | 6 | 2 |
| Precipitation (mm) | 23 | 30 | 38 | 37 | 77 | 59 | 28 | 61 | 64 | 61 | 29 | 23 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 16 | 19 | 23 | 28 | 32 | 35 |
| Avg temp (°C) | 9 | 11 | 15 | 20 | 24 | 28 |
| Avg low (°C) | 1 | 3 | 8 | 11 | 17 | 21 |
| Precipitation (mm) | 23 | 30 | 38 | 37 | 77 | 59 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 36 | 36 | 32 | 27 | 21 | 17 |
| Avg temp (°C) | 29 | 29 | 25 | 20 | 13 | 9 |
| Avg low (°C) | 22 | 22 | 18 | 12 | 6 | 2 |
| Precipitation (mm) | 28 | 61 | 64 | 61 | 29 | 23 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 5 | 5 | 4 | 7 | 6 | 4 | 6 | 5 | 6 | 4 | 4 |
| Days with high ≥ 32°C (days) | — | 0.3 | 1 | 6 | 14 | 23 | 28 | 26 | 15 | 4 | 0.3 | — |
| Days with low ≤ 0°C (days) | 15 | 9 | 4 | 0.6 | — | — | — | — | — | 0.5 | 6 | 14 |
| Days with snowfall ≥ 2.5 cm (days) | 0.2 | 0.1 | — | — | — | — | — | — | — | — | 0.1 | 0.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 5 | 5 | 4 | 7 | 6 |
| Days with high ≥ 32°C (days) | — | 0.3 | 1 | 6 | 14 | 23 |
| Days with low ≤ 0°C (days) | 15 | 9 | 4 | 0.6 | — | — |
| Days with snowfall ≥ 2.5 cm (days) | 0.2 | 0.1 | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 6 | 5 | 6 | 4 | 4 |
| Days with high ≥ 32°C (days) | 28 | 26 | 15 | 4 | 0.3 | — |
| Days with low ≤ 0°C (days) | — | — | — | 0.5 | 6 | 14 |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | — | 0.1 | 0.1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 53 | 53 | 47 | 51 | 42 | 39 | 42 | 43 | 39 | 45 | 50 |
| Clear days (≤ 30% cloud) | 11 | 9 | 10 | 11 | 9 | 12 | 14 | 13 | 13 | 15 | 13 | 11 |
| Partly cloudy days (30–70%) | 9 | 8 | 10 | 10 | 12 | 12 | 11 | 11 | 10 | 9 | 9 | 9 |
| Cloudy days (≥ 70%) | 11 | 11 | 11 | 9 | 10 | 6 | 6 | 7 | 7 | 7 | 9 | 11 |
| Relative humidity (%) | 62 | 59 | 56 | 51 | 56 | 57 | 52 | 54 | 59 | 60 | 62 | 62 |
| Wind speed (mph) | 7.4 | 8.0 | 8.5 | 8.9 | 8.4 | 8.2 | 7.6 | 6.8 | 6.6 | 7.3 | 7.3 | 7.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 53 | 53 | 47 | 51 | 42 |
| Clear days (≤ 30% cloud) | 11 | 9 | 10 | 11 | 9 | 12 |
| Partly cloudy days (30–70%) | 9 | 8 | 10 | 10 | 12 | 12 |
| Cloudy days (≥ 70%) | 11 | 11 | 11 | 9 | 10 | 6 |
| Relative humidity (%) | 62 | 59 | 56 | 51 | 56 | 57 |
| Wind speed (mph) | 7.4 | 8.0 | 8.5 | 8.9 | 8.4 | 8.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 42 | 43 | 39 | 45 | 50 |
| Clear days (≤ 30% cloud) | 14 | 13 | 13 | 15 | 13 | 11 |
| Partly cloudy days (30–70%) | 11 | 11 | 10 | 9 | 9 | 9 |
| Cloudy days (≥ 70%) | 6 | 7 | 7 | 7 | 9 | 11 |
| Relative humidity (%) | 52 | 54 | 59 | 60 | 62 | 62 |
| Wind speed (mph) | 7.6 | 6.8 | 6.6 | 7.3 | 7.3 | 7.1 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at San Angelo (NOAA GHCN station USW00023034), about 12 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.