April is close to San Angelo's year-round average, with average highs near 27.6°C and lows around 11.4°C (mean 19.5°C). It is about average for rainfall, averaging 38 mm of rainfall and 50% relative humidity across the period.
April is close to San Angelo's year-round average. Across 45 years of records, the warmest April in San Angelo was 2011 — when the month averaged 23°C — while the coldest was 1997 at 16°C. Typical April days reach 27.6°C with nights near 11.4°C. The long-term trend is warming, about 0.3°C per decade.
April is about average for rainfall in San Angelo, averaging 38 mm of rainfall. The wettest April on record was 2016 with 109 mm, while the driest was 1998 at 2 mm.
Relative humidity in San Angelo during April averages 50%. The most humid April was 1981 at 68%, and the least humid was 1984 at 32%.
April receives about 6.3 kWh/m²/day of solar energy in San Angelo. The sunniest Aprils were 1998 and 2011 at 7.3 kWh/m²/day, and the cloudiest were 1990 and 2021 at 5.3.
Average wind speed in San Angelo during April is 3.9 m/s. The windiest April was 2009 at 4.5 m/s, while the calmest was 1987 at 2.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 19.3°C | 18.8°C | 19.8°C | 19.8°C | 20.3°C | +1°C |
| Avg High | 27.3°C | 27.1°C | 27.9°C | 27.8°C | 28.4°C | +1.1°C |
| Avg Low | 11.2°C | 10.4°C | 11.7°C | 11.8°C | 12.3°C | +1.1°C |
| Avg Rain | 30 mm | 46 mm | 32 mm | 45 mm | 34 mm | +4 mm |
April temperatures in San Angelo have risen by about 1.5°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -2.3°C (1997) to a record high of 39.8°C (2012).
Rainfall in April is about average for rainfall, averaging 38 mm, with a wettest year of 109 mm.
One of the best times to visit San Angelo
April is one of the best times to visit San Angelo. Expect days averaging 27.6°C and nights around 11.4°C (mean 19.5°C) — close to San Angelo's yearly average — with moderate rainfall (38 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 28.7°C | 21.1°C | 13.6°C | 37.5°C | 0.8°C | 81 mm | 55% | 4.1 m/s | 5.9 |
| 2024 | 29.4°C | 21.2°C | 13.1°C | 36.5°C | 6.3°C | 33 mm | 48% | 3.9 m/s | 6.2 |
| 2023 | 28.5°C | 19.9°C | 11.3°C | 36.0°C | 6.6°C | 13 mm | 44% | 3.7 m/s | 6.5 |
| 2022 | 30.2°C | 21.7°C | 13.2°C | 37.3°C | 4.2°C | 10 mm | 44% | 4.3 m/s | 6.5 |
| 2021 | 26.1°C | 18.5°C | 11.0°C | 35.1°C | 2.8°C | 45 mm | 51% | 4 m/s | 5.3 |
| 2020 | 27.2°C | 19.2°C | 11.3°C | 39.1°C | 1.6°C | 21 mm | 54% | 3.8 m/s | 6.1 |
| 2019 | 26.8°C | 19.2°C | 11.5°C | 36.4°C | 2.1°C | 94 mm | 59% | 3.8 m/s | 6.3 |
| 2018 | 27.8°C | 18.8°C | 9.8°C | 37.1°C | 2.8°C | 7 mm | 45% | 4.1 m/s | 6.5 |
| 2017 | 27.3°C | 19.6°C | 12.0°C | 34.8°C | 5.0°C | 57 mm | 59% | 4.1 m/s | 6.4 |
| 2016 🌧️ | 26.2°C | 18.8°C | 11.4°C | 32.6°C | 2.2°C | 109 mm | 60% | 3.5 m/s | 6.1 |
| 2015 | 27.3°C | 20.1°C | 12.8°C | 34.3°C | 6.2°C | 44 mm | 59% | 3.6 m/s | 5.7 |
| 2014 | 27.6°C | 19.7°C | 11.7°C | 34.3°C | 0.7°C | 12 mm | 42% | 4.2 m/s | 6.5 |
| 2013 | 27.6°C | 18.6°C | 9.6°C | 35.3°C | 1.1°C | 22 mm | 49% | 4.2 m/s | 6.6 |
| 2012 | 30.4°C | 22.3°C | 14.2°C | 39.8°C | 7.6°C | 31 mm | 50% | 3.8 m/s | 6.6 |
| 2011 🔥 | 32.1°C | 23.0°C | 13.8°C | 37.8°C | 5.6°C | 8 mm | 33% | 4.4 m/s | 7.3 |
| 2010 | 25.2°C | 18.2°C | 11.2°C | 32.4°C | 2.3°C | 70 mm | 61% | 4.1 m/s | 5.9 |
| 2009 | 26.8°C | 19.0°C | 11.2°C | 34.9°C | 2.3°C | 73 mm | 46% | 4.5 m/s | 6.2 |
| 2008 | 27.9°C | 19.1°C | 10.3°C | 36.0°C | 4.3°C | 28 mm | 46% | 4.1 m/s | 7 |
| 2007 | 24.5°C | 17.1°C | 9.6°C | 30.7°C | -1.5°C | 52 mm | 62% | 4 m/s | 6.1 |
| 2006 | 29.8°C | 21.6°C | 13.4°C | 37.6°C | 7.3°C | 27 mm | 47% | 3.9 m/s | 6.4 |
| 2005 | 26.3°C | 18.4°C | 10.6°C | 33.3°C | 3.0°C | 3 mm | 51% | 3.9 m/s | 7 |
| 2004 | 26.0°C | 18.8°C | 11.6°C | 32.9°C | 1.0°C | 63 mm | 63% | 3.9 m/s | 5.7 |
| 2003 | 29.7°C | 20.7°C | 11.7°C | 35.6°C | 3.2°C | 10 mm | 43% | 4.1 m/s | 6.7 |
| 2002 | 29.5°C | 21.9°C | 14.2°C | 39.5°C | 3.5°C | 20 mm | 57% | 4 m/s | 5.5 |
| 2001 | 28.5°C | 20.5°C | 12.5°C | 34.1°C | 6.6°C | 22 mm | 57% | 4.1 m/s | 5.8 |
| 2000 | 30.1°C | 21.2°C | 12.2°C | 36.7°C | 2.4°C | 19 mm | 44% | 4.1 m/s | 6.4 |
| 1999 | 28.5°C | 20.2°C | 11.8°C | 36.7°C | 2.9°C | 42 mm | 47% | 4.1 m/s | 6 |
| 1998 | 27.9°C | 18.9°C | 9.8°C | 34.8°C | 5.6°C | 2 mm | 37% | 4 m/s | 7.3 |
| 1997 ❄️ | 23.6°C | 16.0°C | 8.3°C | 34.3°C | -2.3°C | 81 mm | 61% | 4 m/s | 5.4 |
| 1996 | 27.4°C | 18.1°C | 8.8°C | 37.8°C | -1.2°C | 65 mm | 40% | 4.1 m/s | 6.7 |
| 1995 | 27.6°C | 18.8°C | 10.0°C | 36.8°C | 2.2°C | 58 mm | 49% | 4.1 m/s | 6.2 |
| 1994 | 27.9°C | 19.4°C | 10.9°C | 34.1°C | 0.5°C | 31 mm | 47% | 3.7 m/s | 6.8 |
| 1993 | 27.2°C | 18.5°C | 9.9°C | 35.0°C | 3.2°C | 38 mm | 46% | 3.9 m/s | 6.5 |
| 1992 | 25.8°C | 18.5°C | 11.2°C | 34.5°C | 1.9°C | 51 mm | 67% | 3.3 m/s | 5.9 |
| 1991 | 28.7°C | 20.3°C | 11.9°C | 33.6°C | 4.1°C | 20 mm | 45% | 3.5 m/s | 6.6 |
| 1990 | 26.1°C | 18.9°C | 11.6°C | 35.0°C | 3.0°C | 75 mm | 64% | 3.9 m/s | 5.3 |
| 1989 | 29.0°C | 20.5°C | 12.0°C | 36.1°C | 1.9°C | 17 mm | 48% | 3.8 m/s | 6.3 |
| 1988 | 27.9°C | 19.1°C | 10.3°C | 33.6°C | 2.5°C | 27 mm | 39% | 3.6 m/s | 6.3 |
| 1987 | 24.5°C | 16.7°C | 8.9°C | 35.4°C | -1.2°C | 33 mm | 56% | 2.9 m/s | 6.2 |
| 1986 | 29.9°C | 21.8°C | 13.7°C | 36.3°C | 7.6°C | 16 mm | 44% | 3.7 m/s | 6.3 |
| 1985 | 28.1°C | 20.3°C | 12.6°C | 33.7°C | 4.2°C | 29 mm | 54% | 3.8 m/s | 6.3 |
| 1984 | 27.7°C | 19.2°C | 10.6°C | 35.3°C | 3.4°C | 4 mm | 32% | 4.1 m/s | 6.6 |
| 1983 | 25.9°C | 17.2°C | 8.6°C | 36.2°C | 1.3°C | 16 mm | 42% | 4.1 m/s | — |
| 1982 | 27.2°C | 19.1°C | 11.0°C | 36.8°C | 4.0°C | 32 mm | 47% | 3.9 m/s | — |
| 1981 | 25.5°C | 19.4°C | 13.3°C | 32.1°C | 3.6°C | 100 mm | 68% | 3.6 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 27.6°C with lows near 11.4°C (mean 19.5°C), based on 45 years of NASA POWER data.
April averages 38 mm of rainfall in San Angelo, about average for rainfall. The wettest on record was 109 mm in 2016.
The hottest April reached 39.8°C in 2012. The coldest dipped to -2.3°C in 1997.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.5°C. Daytime highs moved from 26.9°C to 28.6°C and overnight lows from 11.2°C to 12.4°C over the same span.
April is close to San Angelo's year-round average and about average for rainfall, so plan for around 27.6°C daytime highs and 11.4°C at night.
Not quite — April is the 6th coolest month in San Angelo, averaging 19.5°C.
For April in San Angelo, pack light layers you can adjust through the day, with typical highs of 27.6°C and lows of 11.4°C.
Relative humidity in April averages 50% — relatively dry.
Average wind speed in April is 3.9 m/s. The windiest April on record averaged 4.5 m/s (2009).
The wettest April on record was 2016 with 109 mm. On average, April sees 38 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in San Angelo behaves each April, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for April specifically, along with year-by-year records and how the month has changed over the decades.
