April is close to Houston's year-round average, with average highs near 26.4°C and lows around 14.5°C (mean 20.5°C). It is one of the drier months, averaging 88 mm of rainfall and 77% relative humidity across the period.
April is close to Houston's year-round average. Across 45 years of records, the warmest April in Houston was 2011 — when the month averaged 24.1°C — while the coldest was 1983 at 17°C. Typical April days reach 26.4°C with nights near 14.5°C. The long-term trend is warming, about 0.4°C per decade.
April is one of the drier months in Houston, averaging 88 mm of rainfall. The wettest April on record was 2009 with 262 mm, while the driest was 1987 at 8 mm.
Relative humidity in Houston during April averages 77%. The most humid April was 1991 at 86%, and the least humid was 2011 at 63%.
April receives about 5.3 kWh/m²/day of solar energy in Houston. The sunniest April was 1987 at 6.3 kWh/m²/day, and the cloudiest was 2015 at 4.3.
Average wind speed in Houston during April is 2.2 m/s. The windiest April was 2011 at 2.9 m/s, while the calmest was 1992 at 1.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 19.9°C | 19.6°C | 20.5°C | 20.8°C | 21.8°C | +1.9°C |
| Avg High | 26.2°C | 25.3°C | 26.1°C | 26.8°C | 27.9°C | +1.7°C |
| Avg Low | 13.6°C | 13.9°C | 14.8°C | 14.9°C | 15.7°C | +2.1°C |
| Avg Rain | 50 mm | 111 mm | 91 mm | 86 mm | 99 mm | +48 mm |
April temperatures in Houston have risen by about 2°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -0.3°C (1987) to a record high of 36.2°C (2006).
Rainfall in April is one of the drier months, averaging 88 mm, with a wettest year of 262 mm.
One of the best times to visit Houston
April is one of the best times to visit Houston. Expect days averaging 26.4°C and nights around 14.5°C (mean 20.5°C) — close to Houston's yearly average — with higher rainfall (88 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 | 29.8°C | 23.6°C | 17.5°C | 32.8°C | 5.3°C | 69 mm | 74% | 2.5 m/s | 5.4 |
| 2024 | 27.5°C | 22.1°C | 16.8°C | 31.0°C | 8.3°C | 128 mm | 79% | 2.2 m/s | 4.9 |
| 2023 | 25.5°C | 20.0°C | 14.5°C | 32.9°C | 9.1°C | 146 mm | 78% | 2 m/s | 4.8 |
| 2022 | 29.7°C | 23.0°C | 16.3°C | 33.4°C | 6.9°C | 50 mm | 69% | 2.5 m/s | 5.4 |
| 2021 | 27.5°C | 21.0°C | 14.5°C | 32.9°C | 6.0°C | 109 mm | 71% | 2.3 m/s | 4.7 |
| 2020 | 27.5°C | 21.2°C | 14.8°C | 33.9°C | 7.5°C | 91 mm | 75% | 2 m/s | 5.1 |
| 2019 | 25.9°C | 19.8°C | 13.7°C | 30.4°C | 2.4°C | 72 mm | 79% | 2.3 m/s | 5.4 |
| 2018 | 25.4°C | 19.0°C | 12.5°C | 30.2°C | 5.2°C | 57 mm | 72% | 2.2 m/s | 5.6 |
| 2017 | 27.0°C | 21.2°C | 15.5°C | 32.3°C | 7.7°C | 94 mm | 77% | 2.2 m/s | 5.7 |
| 2016 | 26.6°C | 21.3°C | 15.9°C | 30.1°C | 7.9°C | 244 mm | 79% | 1.9 m/s | 5.1 |
| 2015 | 26.0°C | 21.6°C | 17.1°C | 30.7°C | 9.7°C | 165 mm | 86% | 1.7 m/s | 4.3 |
| 2014 | 26.4°C | 20.1°C | 13.8°C | 33.5°C | 4.2°C | 28 mm | 73% | 2.3 m/s | 5.4 |
| 2013 | 25.9°C | 19.4°C | 13.0°C | 30.6°C | 4.3°C | 109 mm | 75% | 2.3 m/s | 4.9 |
| 2012 | 27.0°C | 21.6°C | 16.3°C | 29.2°C | 10.0°C | 58 mm | 80% | 2.1 m/s | 6 |
| 2011 🔥 | 31.3°C | 24.1°C | 16.8°C | 34.0°C | 7.1°C | 10 mm | 63% | 2.9 m/s | 5.7 |
| 2010 | 26.1°C | 20.2°C | 14.4°C | 31.1°C | 6.5°C | 26 mm | 77% | 2.2 m/s | 5.3 |
| 2009 🌧️ | 25.0°C | 19.4°C | 13.7°C | 29.3°C | 2.4°C | 262 mm | 74% | 2.6 m/s | 5.3 |
| 2008 | 26.8°C | 20.5°C | 14.2°C | 31.2°C | 4.4°C | 46 mm | 73% | 2.2 m/s | 5.5 |
| 2007 | 23.3°C | 18.0°C | 12.6°C | 28.3°C | 1.2°C | 98 mm | 81% | 1.9 m/s | 4.9 |
| 2006 | 30.4°C | 23.7°C | 17.0°C | 36.2°C | 10.4°C | 70 mm | 71% | 2.1 m/s | 5.8 |
| 2005 | 24.4°C | 18.8°C | 13.1°C | 29.1°C | 5.8°C | 36 mm | 77% | 2.2 m/s | 5.8 |
| 2004 | 24.6°C | 19.7°C | 14.7°C | 28.3°C | 5.8°C | 127 mm | 83% | 2 m/s | 5.1 |
| 2003 | 25.4°C | 20.0°C | 14.6°C | 29.2°C | 3.4°C | 32 mm | 82% | 2 m/s | 5 |
| 2002 | 27.9°C | 22.7°C | 17.5°C | 35.2°C | 10.7°C | 86 mm | 80% | 2.1 m/s | 5.2 |
| 2001 | 26.5°C | 21.7°C | 16.9°C | 29.7°C | 9.2°C | 35 mm | 82% | 2.2 m/s | 5.1 |
| 2000 | 27.1°C | 20.6°C | 14.1°C | 33.1°C | 5.0°C | 123 mm | 73% | 2 m/s | 5.6 |
| 1999 | 28.0°C | 22.2°C | 16.3°C | 33.4°C | 5.4°C | 43 mm | 76% | 2.3 m/s | 5.3 |
| 1998 | 25.1°C | 18.7°C | 12.4°C | 29.3°C | 8.0°C | 30 mm | 75% | 2.1 m/s | 5.8 |
| 1997 | 22.9°C | 17.5°C | 12.2°C | 29.1°C | 4.2°C | 175 mm | 82% | 2.3 m/s | 4.7 |
| 1996 | 27.9°C | 20.3°C | 12.7°C | 33.9°C | 3.1°C | 68 mm | 68% | 2.4 m/s | 5.7 |
| 1995 | 24.9°C | 19.3°C | 13.7°C | 29.1°C | 6.4°C | 112 mm | 82% | 2.1 m/s | 5.4 |
| 1994 | 25.6°C | 20.1°C | 14.7°C | 31.3°C | 3.3°C | 89 mm | 80% | 2.2 m/s | 5 |
| 1993 | 23.3°C | 17.4°C | 11.5°C | 29.3°C | 4.9°C | 135 mm | 81% | 2.3 m/s | 5.4 |
| 1992 | 24.5°C | 19.2°C | 13.9°C | 28.9°C | 5.5°C | 125 mm | 83% | 1.6 m/s | 5.2 |
| 1991 | 26.2°C | 21.6°C | 17.0°C | 30.1°C | 8.4°C | 224 mm | 86% | 2 m/s | 4.4 |
| 1990 | 24.9°C | 19.6°C | 14.3°C | 30.3°C | 5.0°C | 113 mm | 83% | 2.2 m/s | 5.1 |
| 1989 | 26.6°C | 20.3°C | 14.0°C | 32.6°C | 5.6°C | 44 mm | 75% | 2.1 m/s | 5.3 |
| 1988 | 26.5°C | 19.6°C | 12.8°C | 32.9°C | 3.1°C | 58 mm | 72% | 1.9 m/s | 5.4 |
| 1987 | 26.1°C | 18.3°C | 10.6°C | 33.3°C | -0.3°C | 8 mm | 70% | 1.7 m/s | 6.3 |
| 1986 | 27.5°C | 21.5°C | 15.6°C | 32.1°C | 9.9°C | 72 mm | 74% | 2.2 m/s | 4.7 |
| 1985 | 25.1°C | 20.0°C | 14.9°C | 30.0°C | 6.5°C | 63 mm | 82% | 2.1 m/s | 5 |
| 1984 | 27.1°C | 20.1°C | 13.1°C | 34.1°C | 3.8°C | 17 mm | 68% | 2.3 m/s | 5.6 |
| 1983 ❄️ | 23.4°C | 17.0°C | 10.7°C | 29.2°C | 3.6°C | 14 mm | 78% | 2.5 m/s | — |
| 1982 | 25.1°C | 19.4°C | 13.6°C | 31.0°C | 5.9°C | 108 mm | 79% | 2.1 m/s | — |
| 1981 | 28.8°C | 22.9°C | 17.0°C | 34.2°C | 7.9°C | 68 mm | 74% | 2 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 26.4°C with lows near 14.5°C (mean 20.5°C), based on 45 years of NASA POWER data.
April averages 88 mm of rainfall in Houston, one of the drier months. The wettest on record was 262 mm in 2009.
The hottest April reached 36.2°C in 2006. The coldest dipped to -0.3°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 2°C. Daytime highs moved from 25.9°C to 28°C and overnight lows from 13.9°C to 15.9°C over the same span.
April is close to Houston's year-round average and one of the drier months, so plan for around 26.4°C daytime highs and 14.5°C at night.
Not quite — April is the 6th coolest month in Houston, averaging 20.5°C.
For April in Houston, pack light layers you can adjust through the day, with typical highs of 26.4°C and lows of 14.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 77% — quite humid.
Average wind speed in April is 2.2 m/s. The windiest April on record averaged 2.9 m/s (2011).
The wettest April on record was 2009 with 262 mm. On average, April sees 88 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 Houston 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.
