April is one of the cooler months of the year in Bellevue, with average highs near 11.6°C and lows around 2.8°C (mean 7.2°C). It is one of the drier months, averaging 133 mm of rainfall and 83% relative humidity across the period.
April is one of the cooler months of the year in Bellevue. Across 45 years of records, the warmest April in Bellevue was 2016 — when the month averaged 10.7°C — while the coldest was 2011 at 4°C. Typical April days reach 11.6°C with nights near 2.8°C. The long-term April temperature trend is broadly flat.
April is one of the drier months in Bellevue, averaging 133 mm of rainfall. The wettest April on record was 2013 with 228 mm, while the driest was 2004 at 43 mm.
Relative humidity in Bellevue during April averages 83%. The most humid April was 2011 at 87%, and the least humid was 2021 at 76%.
April receives about 4.2 kWh/m²/day of solar energy in Bellevue. The sunniest April was 2021 at 5.3 kWh/m²/day, and the cloudiest was 1996 at 3.4.
Average wind speed in Bellevue during April is 0.3 m/s. The windiest Aprils were 2021, 2022 and 2023, among others at 0.3 m/s, while the calmest were 2017, 2024 and 2025, among others at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 7.0°C | 7.7°C | 7.1°C | 7.2°C | 6.9°C | -0.1°C |
| Avg High | 11.4°C | 12.1°C | 11.6°C | 11.3°C | 11.3°C | -0.1°C |
| Avg Low | 2.6°C | 3.2°C | 2.6°C | 3.1°C | 2.4°C | -0.2°C |
| Avg Rain | 135 mm | 140 mm | 112 mm | 158 mm | 112 mm | -23 mm |
April temperatures in Bellevue have risen by about 0.3°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -6.2°C (2009) to a record high of 28.9°C (1998).
Rainfall in April is one of the drier months, averaging 133 mm, with a wettest year of 228 mm.
A good time to visit Bellevue
April is a good time to visit Bellevue, with days averaging 11.6°C and nights around 2.8°C (mean 7.2°C, cooler than Bellevue's yearly average) and higher rainfall. August and July are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 12.2°C | 7.3°C | 2.3°C | 19.1°C | -1.4°C | 95 mm | 83% | 0.2 m/s | 5 |
| 2024 | 11.3°C | 6.9°C | 2.5°C | 17.5°C | -0.8°C | 120 mm | 84% | 0.2 m/s | 4.6 |
| 2023 | 10.0°C | 6.1°C | 2.3°C | 23.6°C | -1.7°C | 147 mm | 86% | 0.3 m/s | 3.8 |
| 2022 | 8.5°C | 4.7°C | 0.9°C | 17.5°C | -3.8°C | 166 mm | 85% | 0.3 m/s | 4 |
| 2021 | 13.2°C | 8.2°C | 3.1°C | 25.4°C | -2.8°C | 58 mm | 76% | 0.3 m/s | 5.3 |
| 2020 | 12.6°C | 8.1°C | 3.5°C | 17.6°C | -1.9°C | 85 mm | 79% | 0.3 m/s | 4.8 |
| 2019 | 11.4°C | 7.5°C | 3.5°C | 17.3°C | 0.9°C | 139 mm | 85% | 0.3 m/s | 4 |
| 2018 | 11.4°C | 7.3°C | 3.3°C | 26.3°C | -0.8°C | 228 mm | 85% | 0.3 m/s | 3.7 |
| 2017 | 10.4°C | 6.7°C | 3.0°C | 16.8°C | -1.1°C | 161 mm | 86% | 0.2 m/s | 3.6 |
| 2016 🔥 | 15.6°C | 10.7°C | 5.9°C | 27.8°C | 1.7°C | 63 mm | 80% | 0.3 m/s | 4.7 |
| 2015 | 12.4°C | 7.7°C | 3.0°C | 22.7°C | -1.1°C | 75 mm | 80% | 0.3 m/s | 4.6 |
| 2014 | 12.2°C | 7.9°C | 3.6°C | 23.1°C | 0.5°C | 176 mm | 83% | 0.3 m/s | 4.3 |
| 2013 🌧️ | 10.1°C | 6.6°C | 3.1°C | 17.7°C | -0.3°C | 228 mm | 85% | 0.3 m/s | 4 |
| 2012 | 11.6°C | 7.4°C | 3.2°C | 23.2°C | -2.1°C | 157 mm | 84% | 0.3 m/s | 4 |
| 2011 ❄️ | 7.5°C | 4.0°C | 0.5°C | 16.4°C | -2.8°C | 206 mm | 87% | 0.3 m/s | 3.8 |
| 2010 | 10.6°C | 6.3°C | 2.1°C | 19.7°C | -4.2°C | 150 mm | 85% | 0.3 m/s | 3.8 |
| 2009 | 11.1°C | 6.5°C | 1.8°C | 20.5°C | -6.2°C | 129 mm | 81% | 0.3 m/s | 4.5 |
| 2008 | 8.8°C | 4.5°C | 0.3°C | 18.9°C | -4.5°C | 107 mm | 84% | 0.3 m/s | 4 |
| 2007 | 11.1°C | 6.9°C | 2.7°C | 19.8°C | -3.0°C | 93 mm | 84% | 0.3 m/s | 4 |
| 2006 | 12.0°C | 7.3°C | 2.6°C | 21.8°C | -0.5°C | 98 mm | 82% | 0.3 m/s | 4.3 |
| 2005 | 12.6°C | 8.1°C | 3.7°C | 21.1°C | -1.7°C | 131 mm | 83% | 0.3 m/s | 4 |
| 2004 | 15.3°C | 9.6°C | 4.0°C | 25.4°C | -1.0°C | 43 mm | 78% | 0.3 m/s | 5.2 |
| 2003 | 10.4°C | 6.5°C | 2.7°C | 17.9°C | -1.7°C | 123 mm | 85% | 0.2 m/s | 3.6 |
| 2002 | 11.2°C | 6.9°C | 2.7°C | 18.3°C | -1.7°C | 155 mm | 83% | 0.3 m/s | 4.2 |
| 2001 | 10.2°C | 6.2°C | 2.2°C | 24.4°C | -2.2°C | 132 mm | 84% | 0.3 m/s | 4 |
| 2000 | 13.1°C | 8.2°C | 3.3°C | 19.4°C | -1.5°C | 105 mm | 82% | 0.3 m/s | 4.4 |
| 1999 | 11.0°C | 6.3°C | 1.6°C | 20.9°C | -3.0°C | 64 mm | 80% | 0.3 m/s | 4.5 |
| 1998 | 13.2°C | 8.2°C | 3.1°C | 28.9°C | -0.5°C | 56 mm | 80% | 0.3 m/s | 4.6 |
| 1997 | 11.3°C | 6.7°C | 2.1°C | 19.9°C | -3.1°C | 175 mm | 83% | 0.3 m/s | 4.1 |
| 1996 | 12.3°C | 7.9°C | 3.5°C | 21.8°C | -1.1°C | 219 mm | 85% | 0.3 m/s | 3.4 |
| 1995 | 11.7°C | 7.0°C | 2.4°C | 19.5°C | -2.0°C | 104 mm | 81% | 0.3 m/s | 4.3 |
| 1994 | 13.2°C | 8.8°C | 4.4°C | 21.6°C | 0.2°C | 114 mm | 84% | 0.3 m/s | 3.7 |
| 1993 | 11.0°C | 7.1°C | 3.2°C | 15.8°C | 0.3°C | 192 mm | 86% | 0.3 m/s | 3.7 |
| 1992 | 13.2°C | 8.8°C | 4.4°C | 22.1°C | -0.2°C | 160 mm | 82% | 0.3 m/s | 3.9 |
| 1991 | 10.9°C | 6.7°C | 2.4°C | 20.0°C | -2.7°C | 198 mm | 83% | 0.3 m/s | 4.3 |
| 1990 | 13.5°C | 9.1°C | 4.7°C | 22.8°C | 1.6°C | 121 mm | 83% | 0.3 m/s | 4 |
| 1989 | 14.0°C | 9.0°C | 3.9°C | 23.5°C | 0.6°C | 107 mm | 78% | 0.3 m/s | 4.4 |
| 1988 | 12.3°C | 7.9°C | 3.5°C | 23.2°C | -0.6°C | 173 mm | 84% | 0.3 m/s | 3.6 |
| 1987 | 13.4°C | 8.7°C | 4.0°C | 28.5°C | -0.7°C | 134 mm | 81% | 0.3 m/s | 4.4 |
| 1986 | 9.9°C | 5.8°C | 1.7°C | 20.2°C | -2.8°C | 111 mm | 85% | 0.3 m/s | 3.7 |
| 1985 | 11.2°C | 7.0°C | 2.9°C | 22.5°C | -3.1°C | 145 mm | 84% | 0.3 m/s | 4.1 |
| 1984 | 9.2°C | 5.5°C | 1.7°C | 17.8°C | -1.2°C | 139 mm | 86% | 0.3 m/s | 4.1 |
| 1983 | 12.4°C | 7.4°C | 2.4°C | 21.2°C | -1.8°C | 71 mm | 80% | 0.3 m/s | — |
| 1982 | 9.6°C | 5.1°C | 0.7°C | 21.5°C | -3.0°C | 130 mm | 80% | 0.3 m/s | — |
| 1981 | 10.5°C | 6.7°C | 2.8°C | 21.7°C | -3.3°C | 207 mm | 86% | 0.3 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 11.6°C with lows near 2.8°C (mean 7.2°C), based on 45 years of NASA POWER data.
April averages 133 mm of rainfall in Bellevue, one of the drier months. The wettest on record was 228 mm in 2013.
The hottest April reached 28.9°C in 1998. The coldest dipped to -6.2°C in 2009.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.3°C. Daytime highs moved from 10.6°C to 11°C and overnight lows from 2.1°C to 2.2°C over the same span.
April is one of the cooler months of the year in Bellevue and one of the drier months, so plan for around 11.6°C daytime highs and 2.8°C at night.
Not quite — April is the 6th coolest month in Bellevue, averaging 7.2°C.
For April in Bellevue, pack warm layers and a jacket for chilly mornings, with typical highs of 11.6°C and lows of 2.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 83% — quite humid.
Average wind speed in April is 0.3 m/s. The windiest April on record averaged 0.3 m/s (1981).
The wettest April on record was 2013 with 228 mm. On average, April sees 133 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 Bellevue 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.
