April is one of the warmer months of the year in Weslaco, with average highs near 32.9°C and lows around 19.2°C (mean 26.1°C). It is one of the drier months, averaging 39 mm of rainfall and 65% relative humidity across the period.
April is one of the warmer months of the year in Weslaco. Across 45 years of records, the warmest April in Weslaco was 2011 — when the month averaged 29.1°C — while the coldest was 1997 at 22.4°C. Typical April days reach 32.9°C with nights near 19.2°C. The long-term trend is warming, about 0.2°C per decade.
April is one of the drier months in Weslaco, averaging 39 mm of rainfall. The wettest April on record was 1997 with 133 mm, while the driest was 2011 at 0 mm.
Relative humidity in Weslaco during April averages 65%. The most humid April was 2015 at 78%, and the least humid was 1984 at 55%.
April receives about 5.4 kWh/m²/day of solar energy in Weslaco. The sunniest April was 2012 at 6.2 kWh/m²/day, and the cloudiest were 1997 and 2015 at 4.4.
Average wind speed in Weslaco during April is 3.9 m/s. The windiest April was 2011 at 5.2 m/s, while the calmest was 1988 at 3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.6°C | 25.7°C | 26.4°C | 26.1°C | 26.8°C | +1.2°C |
| Avg High | 32.7°C | 32.7°C | 33.1°C | 32.9°C | 33.3°C | +0.6°C |
| Avg Low | 18.5°C | 18.7°C | 19.6°C | 19.4°C | 20.3°C | +1.8°C |
| Avg Rain | 44 mm | 42 mm | 30 mm | 38 mm | 44 mm | +0 mm |
April temperatures in Weslaco have risen by about 0.6°C between 1981–1985 and 2021–2025.
April has ranged from a record low of 5.8°C (2007) to a record high of 43.8°C (2011).
Rainfall in April is one of the drier months, averaging 39 mm, with a wettest year of 133 mm.
One of the best times to visit Weslaco
April is one of the best times to visit Weslaco. Expect days averaging 32.9°C and nights around 19.2°C (mean 26.1°C) — warmer than Weslaco's yearly average — with moderate rainfall (39 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 | 32.7°C | 26.3°C | 19.8°C | 38.7°C | 9.5°C | 37 mm | 67% | 4.3 m/s | 5.9 |
| 2024 | 33.9°C | 27.3°C | 20.7°C | 37.8°C | 12.9°C | 14 mm | 65% | 4.1 m/s | 5.1 |
| 2023 | 31.6°C | 25.3°C | 19.0°C | 39.3°C | 12.7°C | 102 mm | 71% | 3.4 m/s | 4.7 |
| 2022 | 33.6°C | 27.3°C | 21.0°C | 41.0°C | 12.5°C | 56 mm | 68% | 4.2 m/s | 5.5 |
| 2021 | 33.1°C | 26.4°C | 19.7°C | 41.9°C | 12.5°C | 38 mm | 65% | 3.8 m/s | 4.8 |
| 2020 | 34.7°C | 28.1°C | 21.4°C | 41.5°C | 14.4°C | 20 mm | 64% | 3.6 m/s | 4.8 |
| 2019 | 32.5°C | 25.2°C | 17.9°C | 37.4°C | 8.3°C | 13 mm | 64% | 3.9 m/s | 5.7 |
| 2018 | 32.2°C | 25.4°C | 18.5°C | 39.8°C | 9.7°C | 36 mm | 63% | 4.1 m/s | 5.3 |
| 2017 | 33.7°C | 26.9°C | 20.1°C | 43.1°C | 14.6°C | 19 mm | 61% | 3.9 m/s | 5.8 |
| 2016 | 32.7°C | 26.3°C | 20.0°C | 37.8°C | 11.4°C | 53 mm | 68% | 3.4 m/s | 5.3 |
| 2015 | 30.6°C | 25.5°C | 20.5°C | 36.1°C | 13.3°C | 78 mm | 78% | 3.3 m/s | 4.4 |
| 2014 | 33.0°C | 25.8°C | 18.6°C | 42.3°C | 10.0°C | 2 mm | 64% | 4 m/s | 5.2 |
| 2013 | 32.7°C | 25.3°C | 18.0°C | 41.3°C | 11.4°C | 34 mm | 63% | 4.3 m/s | 5 |
| 2012 | 33.9°C | 27.2°C | 20.5°C | 38.6°C | 14.4°C | 30 mm | 64% | 4.1 m/s | 6.2 |
| 2011 🔥 | 37.0°C | 29.1°C | 21.1°C | 43.8°C | 15.3°C | 0 mm | 58% | 5.2 m/s | 6.1 |
| 2010 | 30.3°C | 24.4°C | 18.6°C | 37.6°C | 13.5°C | 110 mm | 72% | 3.7 m/s | 5.1 |
| 2009 | 33.9°C | 26.6°C | 19.3°C | 38.5°C | 11.4°C | 2 mm | 59% | 4.5 m/s | 5.7 |
| 2008 | 33.4°C | 26.3°C | 19.2°C | 39.4°C | 11.4°C | 41 mm | 61% | 4.4 m/s | 5.8 |
| 2007 | 30.8°C | 24.2°C | 17.6°C | 37.4°C | 5.8°C | 19 mm | 68% | 4 m/s | 5 |
| 2006 | 35.2°C | 28.2°C | 21.1°C | 39.9°C | 16.1°C | 8 mm | 63% | 4.6 m/s | 6 |
| 2005 | 33.3°C | 26.1°C | 18.8°C | 42.0°C | 10.2°C | 1 mm | 56% | 4 m/s | 5.5 |
| 2004 | 29.5°C | 24.1°C | 18.8°C | 35.6°C | 9.5°C | 131 mm | 75% | 4.1 m/s | 5.2 |
| 2003 | 32.4°C | 26.0°C | 19.7°C | 39.1°C | 9.2°C | 29 mm | 68% | 4 m/s | 4.7 |
| 2002 | 34.7°C | 28.0°C | 21.3°C | 40.2°C | 16.1°C | 20 mm | 67% | 4.8 m/s | 5.6 |
| 2001 | 33.8°C | 27.3°C | 20.8°C | 39.4°C | 15.8°C | 26 mm | 66% | 4.7 m/s | 5.5 |
| 2000 | 33.8°C | 26.7°C | 19.7°C | 40.0°C | 12.8°C | 23 mm | 63% | 4.1 m/s | 5.7 |
| 1999 | 35.5°C | 28.2°C | 20.9°C | 42.9°C | 11.9°C | 5 mm | 62% | 4.5 m/s | 5.8 |
| 1998 | 33.5°C | 25.5°C | 17.5°C | 42.5°C | 12.7°C | 2 mm | 58% | 3.7 m/s | 5.8 |
| 1997 ❄️ 🌧️ | 28.1°C | 22.4°C | 16.8°C | 36.1°C | 9.3°C | 133 mm | 75% | 3.2 m/s | 4.4 |
| 1996 | 33.4°C | 25.0°C | 16.7°C | 41.9°C | 8.5°C | 26 mm | 59% | 4.1 m/s | 5.9 |
| 1995 | 33.5°C | 26.1°C | 18.7°C | 42.0°C | 12.8°C | 29 mm | 62% | 4.1 m/s | 5.5 |
| 1994 | 32.5°C | 25.8°C | 19.1°C | 39.1°C | 11.4°C | 33 mm | 68% | 3.8 m/s | 5 |
| 1993 | 32.3°C | 25.2°C | 18.0°C | 39.1°C | 12.4°C | 21 mm | 62% | 4.1 m/s | 5.6 |
| 1992 | 30.6°C | 24.3°C | 17.9°C | 37.1°C | 10.0°C | 84 mm | 70% | 3.2 m/s | 5.1 |
| 1991 | 35.5°C | 28.4°C | 21.3°C | 43.2°C | 12.6°C | 47 mm | 65% | 3.4 m/s | 4.9 |
| 1990 | 32.3°C | 26.1°C | 20.0°C | 39.7°C | 12.5°C | 41 mm | 69% | 4.2 m/s | 5 |
| 1989 | 33.5°C | 26.1°C | 18.7°C | 43.0°C | 11.6°C | 55 mm | 65% | 3.7 m/s | 5.2 |
| 1988 | 32.7°C | 25.4°C | 18.0°C | 41.7°C | 9.3°C | 26 mm | 61% | 3 m/s | 4.9 |
| 1987 | 30.2°C | 22.8°C | 15.3°C | 38.2°C | 7.4°C | 40 mm | 62% | 3.3 m/s | 5.6 |
| 1986 | 33.1°C | 26.7°C | 20.2°C | 39.2°C | 14.6°C | 60 mm | 67% | 3.9 m/s | 5.2 |
| 1985 | 32.0°C | 25.6°C | 19.2°C | 38.1°C | 12.9°C | 65 mm | 68% | 3.5 m/s | 5.2 |
| 1984 | 35.5°C | 27.0°C | 18.6°C | 42.8°C | 13.3°C | 1 mm | 55% | 3.6 m/s | 6 |
| 1983 | 32.5°C | 24.5°C | 16.5°C | 39.4°C | 9.4°C | 0 mm | 56% | 4 m/s | — |
| 1982 | 33.7°C | 26.7°C | 19.7°C | 43.6°C | 14.1°C | 68 mm | 67% | 3.9 m/s | — |
| 1981 | 31.4°C | 25.9°C | 20.4°C | 34.8°C | 15.3°C | 80 mm | 72% | 3.8 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 32.9°C with lows near 19.2°C (mean 26.1°C), based on 45 years of NASA POWER data.
April averages 39 mm of rainfall in Weslaco, one of the drier months. The wettest on record was 133 mm in 1997.
The hottest April reached 43.8°C in 2011. The coldest dipped to 5.8°C in 2007.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.6°C. Daytime highs moved from 33°C to 33°C and overnight lows from 18.9°C to 20°C over the same span.
April is one of the warmer months of the year in Weslaco and one of the drier months, so plan for around 32.9°C daytime highs and 19.2°C at night.
Not quite — April is the 7th coolest month in Weslaco, averaging 26.1°C.
For April in Weslaco, pack light, breathable clothing and sun protection, with typical highs of 32.9°C and lows of 19.2°C.
Relative humidity in April averages 65% — moderately humid.
Average wind speed in April is 3.9 m/s. The windiest April on record averaged 5.2 m/s (2011).
The wettest April on record was 1997 with 133 mm. On average, April sees 39 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 Weslaco 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.
