Climate averages 1991–2020
San Angelo weather
in May.
A hot, moderately wet month: the 5th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in San Angelo: daytime highs average 30.0°C and nights cool to about 18.2°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 86 mm of rain on roughly 10 days, which makes May a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 44 min on an average May day.
The nearest other city in this atlas is Abilene (128 km away). In May its highs average 29.2°C, 0.7°C cooler than San Angelo, with 75 mm of rain.
Among the 498 cities listed in the United States, San Angelo ranks joint 32nd of 498 for the warmest May highs and joint 259th of 498 for the driest May (rainfall, lowest first). The mean May high of those 498 cities is 23.8°C; San Angelo is 6.2°C warmer than that mean.
From May to June, average highs rise by 3.2°C to 33.2°C, and monthly rainfall falls from 86 mm to 57 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
San Angelo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 15.1°C3.5°C | 3.5°C | 27 | 4.1 | 10.310 h |
| February | 17.7°C5.4°C | 5.4°C | 34 | 5.0 | 11.011 h |
| March | 21.9°C9.4°C | 9.4°C | 48 | 5.8 | 12.012 h |
| April | 26.4°C13.5°C | 13.5°C | 53 | 5.9 | 12.913 h |
| May, selected | 30.0°C18.2°C | 18.2°C | 86 | 10.0 | 13.714 h |
| June | 33.2°C22.1°C | 22.1°C | 57 | 7.6 | 14.214 h |
| July | 34.7°C23.8°C | 23.8°C | 33 | 5.4 | 14.014 h |
| August | 34.3°C23.9°C | 23.9°C | 39 | 6.0 | 13.313 h |
| September | 30.6°C20.0°C | 20.0°C | 53 | 6.0 | 12.412 h |
| October | 25.8°C14.6°C | 14.6°C | 60 | 6.0 | 11.411 h |
| November | 19.4°C8.5°C | 8.5°C | 36 | 4.2 | 10.611 h |
| December | 15.4°C4.2°C | 4.2°C | 33 | 4.7 | 10.110 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Abilene in MayUnited States · 128 kmHigh 29.2°C · Low 18.0°C · 75 mm rain
- Midland in MayUnited States · 166 kmHigh 30.1°C · Low 17.2°C · 57 mm rain
- Odessa in MayUnited States · 188 kmHigh 30.4°C · Low 17.1°C · 55 mm rain
- Ciudad Acuña in MayMexico · 243 kmHigh 32.3°C · Low 21.3°C · 64 mm rain
- Killeen in MayUnited States · 260 kmHigh 28.5°C · Low 18.8°C · 115 mm rain
- Lubbock in MayUnited States · 270 kmHigh 28.2°C · Low 15.2°C · 56 mm rain
- Round Rock in MayUnited States · 284 kmHigh 28.9°C · Low 19.3°C · 110 mm rain
- Austin in MayUnited States · 290 kmHigh 29.3°C · Low 19.5°C · 116 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for San Angelo) is explained once on the San Angelo year overview and on the Sources, method and limits page.