| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 16.2° | 0.7° | 19.8mm | 3.6 | 79 |
| February | 18.2° | 2.7° | 28mm | 4.9 | 84 |
| March | 22.7° | 7.3° | 37.6mm | 4.8 | 90 |
| April | 27.5° | 11.5° | 37mm | 4.5 | 89 |
| May | 31.6° | 17° | 77.1mm | 6.8 | 68 |
| June | 34.9° | 21.1° | 56.5mm | 5.5 | 57 |
| July | 36.3° | 22.3° | 28.8mm | 4.4 | 54 |
| August | 36° | 22.1° | 62.6mm | 5.8 | 52 |
| September | 32° | 18.1° | 64.7mm | 5.1 | 70 |
| October | 26.9° | 12.1° | 59.9mm | 5.7 | 89 |
| November | 20.7° | 6° | 35.7mm | 4 | 92 |
| December | 16.9° | 1.6° | 19.9mm | 3.9 | 82 |
January in San Angelo averages a daily high of 16.2°C with nights around 0.7°C. Expect roughly 3.6 wet days totalling 19.8mm. Comfortable conditions for being outdoors all day.
February in San Angelo averages a daily high of 18.2°C with nights around 2.7°C. Expect roughly 4.9 wet days totalling 28mm. Comfortable conditions for being outdoors all day.
March in San Angelo averages a daily high of 22.7°C with nights around 7.3°C. Expect roughly 4.8 wet days totalling 37.6mm. Comfortable conditions for being outdoors all day.
April in San Angelo averages a daily high of 27.5°C with nights around 11.5°C. Expect roughly 4.5 wet days totalling 37mm. Comfortable conditions for being outdoors all day.
May in San Angelo averages a daily high of 31.6°C with nights around 17°C. Expect roughly 6.8 wet days totalling 77.1mm. Generally workable, with some weather to plan around.
June in San Angelo averages a daily high of 34.9°C with nights around 21.1°C. Expect roughly 5.5 wet days totalling 56.5mm. Generally workable, with some weather to plan around.
July in San Angelo averages a daily high of 36.3°C with nights around 22.3°C. Expect roughly 4.4 wet days totalling 28.8mm. Demanding conditions — pack for it and plan indoor options.
August in San Angelo averages a daily high of 36°C with nights around 22.1°C. Expect roughly 5.8 wet days totalling 62.6mm. Demanding conditions — pack for it and plan indoor options.
September in San Angelo averages a daily high of 32°C with nights around 18.1°C. Expect roughly 5.1 wet days totalling 64.7mm. Generally workable, with some weather to plan around.
October in San Angelo averages a daily high of 26.9°C with nights around 12.1°C. Expect roughly 5.7 wet days totalling 59.9mm. Comfortable conditions for being outdoors all day.
November in San Angelo averages a daily high of 20.7°C with nights around 6°C. Expect roughly 4 wet days totalling 35.7mm. Comfortable conditions for being outdoors all day.
December in San Angelo averages a daily high of 16.9°C with nights around 1.6°C. Expect roughly 3.9 wet days totalling 19.9mm. Comfortable conditions for being outdoors all day.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. San Angelo peaks at 92.
Based on 30 years of records, February–April scores highest for comfort in San Angelo, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 36.3°C.
May is the wettest, averaging 77.1mm of rain across roughly 6.8 wet days.
January is the coolest month, with average daily highs around 16.2°C.