April is one of the cooler months of the year in Arlington, with average highs near 24.8°C and lows around 11.9°C (mean 18.4°C). It is about average for rainfall, averaging 85 mm of rainfall and 71% relative humidity across the period.
April is one of the cooler months of the year in Arlington. Across 45 years of records, the warmest April in Arlington was 2011 — when the month averaged 22.2°C — while the coldest was 1997 at 15.2°C. Typical April days reach 24.8°C with nights near 11.9°C. The long-term trend is warming, about 0.3°C per decade.
April is about average for rainfall in Arlington, averaging 85 mm of rainfall. The wettest April on record was 2016 with 179 mm, while the driest was 1983 at 8 mm.
Relative humidity in Arlington during April averages 71%. The most humid April was 1992 at 79%, and the least humid was 1996 at 56%.
April receives about 5.6 kWh/m²/day of solar energy in Arlington. The sunniest April was 1998 at 6.7 kWh/m²/day, and the cloudiest were 1990, 2002 and 2015 at 4.8.
Average wind speed in Arlington during April is 3.4 m/s. The windiest Aprils were 2011 and 2022 at 4.2 m/s, while the calmest was 2015 at 2.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.1°C | 17.5°C | 18.6°C | 18.7°C | 19.1°C | +1°C |
| Avg High | 24.9°C | 24.0°C | 24.9°C | 25.1°C | 25.5°C | +0.6°C |
| Avg Low | 11.2°C | 11.1°C | 12.4°C | 12.3°C | 12.7°C | +1.5°C |
| Avg Rain | 58 mm | 100 mm | 75 mm | 94 mm | 102 mm | +45 mm |
April temperatures in Arlington have risen by about 1.3°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -2.1°C (1987) to a record high of 38.1°C (2006).
Rainfall in April is about average for rainfall, averaging 85 mm, with a wettest year of 179 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.2°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
One of the best times to visit Arlington
April is one of the best times to visit Arlington. Expect days averaging 24.8°C and nights around 11.9°C (mean 18.4°C) — close to Arlington's yearly average — with higher rainfall (85 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 | 26.9°C | 20.7°C | 14.5°C | 33.5°C | 2.2°C | 149 mm | 70% | 3.4 m/s | 5.1 |
| 2024 | 25.2°C | 19.6°C | 14.1°C | 30.5°C | 7.5°C | 169 mm | 76% | 3.5 m/s | 5.1 |
| 2023 | 24.7°C | 18.2°C | 11.7°C | 32.2°C | 6.7°C | 62 mm | 69% | 3.2 m/s | 5.3 |
| 2022 | 28.3°C | 20.8°C | 13.4°C | 33.0°C | 5.2°C | 82 mm | 61% | 4.2 m/s | 5.8 |
| 2021 | 24.5°C | 17.9°C | 11.3°C | 31.8°C | 2.2°C | 96 mm | 67% | 3.3 m/s | 5 |
| 2020 | 23.5°C | 17.2°C | 11.0°C | 32.1°C | 2.1°C | 54 mm | 76% | 3 m/s | 5.4 |
| 2019 | 24.0°C | 18.1°C | 12.1°C | 29.3°C | 2.8°C | 149 mm | 77% | 3.4 m/s | 5.6 |
| 2018 | 23.0°C | 15.8°C | 8.6°C | 29.5°C | 2.0°C | 26 mm | 67% | 3.5 m/s | 6 |
| 2017 | 25.7°C | 19.5°C | 13.4°C | 31.2°C | 6.8°C | 120 mm | 73% | 3.5 m/s | 5.5 |
| 2016 🌧️ | 24.6°C | 18.9°C | 13.1°C | 29.0°C | 4.3°C | 179 mm | 76% | 2.9 m/s | 5.3 |
| 2015 | 24.4°C | 19.1°C | 13.7°C | 29.4°C | 7.4°C | 164 mm | 79% | 2.8 m/s | 4.8 |
| 2014 | 24.9°C | 18.3°C | 11.7°C | 32.3°C | 0.7°C | 55 mm | 65% | 3.5 m/s | 5.9 |
| 2013 | 24.4°C | 17.3°C | 10.2°C | 31.4°C | 2.3°C | 71 mm | 70% | 3.4 m/s | 5.5 |
| 2012 | 26.3°C | 20.3°C | 14.3°C | 31.6°C | 7.3°C | 47 mm | 75% | 3.2 m/s | 5.9 |
| 2011 🔥 | 29.9°C | 22.2°C | 14.6°C | 35.6°C | 4.7°C | 67 mm | 58% | 4.2 m/s | 6.2 |
| 2010 | 24.0°C | 17.8°C | 11.7°C | 28.1°C | 4.6°C | 66 mm | 75% | 3.4 m/s | 5.6 |
| 2009 | 24.3°C | 17.7°C | 11.2°C | 32.8°C | -0.7°C | 122 mm | 68% | 3.8 m/s | 5.5 |
| 2008 | 24.0°C | 17.4°C | 10.7°C | 29.7°C | 3.1°C | 125 mm | 72% | 3.6 m/s | 6 |
| 2007 | 22.0°C | 16.2°C | 10.3°C | 28.4°C | 0.0°C | 64 mm | 75% | 3.1 m/s | 5.1 |
| 2006 | 27.9°C | 21.2°C | 14.4°C | 38.1°C | 6.2°C | 59 mm | 68% | 3.4 m/s | 6.1 |
| 2005 | 24.2°C | 17.7°C | 11.2°C | 32.4°C | 4.0°C | 25 mm | 70% | 3.5 m/s | 6.1 |
| 2004 | 24.6°C | 18.8°C | 12.9°C | 30.7°C | 4.5°C | 144 mm | 74% | 3.3 m/s | 5 |
| 2003 | 26.1°C | 19.3°C | 12.5°C | 31.3°C | 0.8°C | 36 mm | 68% | 3.6 m/s | 6.1 |
| 2002 | 25.6°C | 20.2°C | 14.8°C | 32.7°C | 5.6°C | 64 mm | 78% | 3.4 m/s | 4.8 |
| 2001 | 24.7°C | 19.4°C | 14.1°C | 28.4°C | 5.2°C | 27 mm | 79% | 3.6 m/s | 5 |
| 2000 | 25.4°C | 18.4°C | 11.5°C | 32.5°C | 2.7°C | 88 mm | 67% | 3.3 m/s | 5.4 |
| 1999 | 25.7°C | 19.4°C | 13.1°C | 30.9°C | 2.3°C | 65 mm | 70% | 3.5 m/s | 5.8 |
| 1998 | 23.4°C | 16.5°C | 9.6°C | 27.9°C | 4.8°C | 29 mm | 71% | 3.2 m/s | 6.7 |
| 1997 ❄️ | 21.1°C | 15.2°C | 9.4°C | 28.0°C | -0.8°C | 167 mm | 78% | 3.3 m/s | 5.2 |
| 1996 | 26.9°C | 18.2°C | 9.6°C | 35.9°C | 2.3°C | 77 mm | 56% | 4 m/s | 6.3 |
| 1995 | 23.8°C | 17.2°C | 10.7°C | 28.6°C | 3.8°C | 146 mm | 77% | 3.5 m/s | 5.5 |
| 1994 | 24.5°C | 18.2°C | 11.9°C | 30.6°C | 0.7°C | 86 mm | 74% | 3.5 m/s | 5.8 |
| 1993 | 22.4°C | 16.0°C | 9.6°C | 28.2°C | 1.7°C | 107 mm | 78% | 3.5 m/s | 5.5 |
| 1992 | 23.6°C | 17.8°C | 11.9°C | 28.3°C | 1.8°C | 49 mm | 79% | 2.9 m/s | 5.4 |
| 1991 | 25.9°C | 19.6°C | 13.2°C | 33.3°C | 4.7°C | 108 mm | 76% | 3.1 m/s | 5.4 |
| 1990 | 23.1°C | 17.3°C | 11.6°C | 30.1°C | 1.5°C | 165 mm | 79% | 3.4 m/s | 4.8 |
| 1989 | 24.4°C | 17.8°C | 11.2°C | 30.9°C | -0.8°C | 59 mm | 74% | 3.2 m/s | 6 |
| 1988 | 25.6°C | 17.9°C | 10.1°C | 32.6°C | 2.9°C | 41 mm | 64% | 3.2 m/s | 6.2 |
| 1987 | 24.8°C | 17.2°C | 9.5°C | 32.3°C | -2.1°C | 11 mm | 64% | 2.9 m/s | 6.4 |
| 1986 | 25.6°C | 19.4°C | 13.2°C | 31.6°C | 6.4°C | 120 mm | 73% | 3.5 m/s | 5.4 |
| 1985 | 24.7°C | 18.6°C | 12.5°C | 29.4°C | 4.4°C | 109 mm | 77% | 3.3 m/s | 5.9 |
| 1984 | 25.1°C | 17.6°C | 10.1°C | 33.7°C | 2.2°C | 28 mm | 61% | 3.7 m/s | 5.9 |
| 1983 | 23.1°C | 15.9°C | 8.8°C | 33.6°C | 1.1°C | 8 mm | 67% | 4.1 m/s | — |
| 1982 | 23.2°C | 16.9°C | 10.5°C | 30.9°C | 2.8°C | 79 mm | 72% | 3.4 m/s | — |
| 1981 | 27.5°C | 21.3°C | 15.1°C | 33.5°C | 6.6°C | 63 mm | 68% | 3.3 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 24.8°C with lows near 11.9°C (mean 18.4°C), based on 45 years of NASA POWER data.
April averages 85 mm of rainfall in Arlington, about average for rainfall. The wettest on record was 179 mm in 2016.
The hottest April reached 38.1°C in 2006. The coldest dipped to -2.1°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.3°C. Daytime highs moved from 24.7°C to 25.9°C and overnight lows from 11.4°C to 13°C over the same span.
April is one of the cooler months of the year in Arlington and about average for rainfall, so plan for around 24.8°C daytime highs and 11.9°C at night.
Not quite — April is the 6th coolest month in Arlington, averaging 18.4°C.
For April in Arlington, pack light layers you can adjust through the day, with typical highs of 24.8°C and lows of 11.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 71% — moderately humid.
Average wind speed in April is 3.4 m/s. The windiest April on record averaged 4.2 m/s (2011).
The wettest April on record was 2016 with 179 mm. On average, April sees 85 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 Arlington 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.
