April is close to Bloomington's year-round average, with average highs near 16.6°C and lows around 4.2°C (mean 10.4°C). It is a relatively wet time of year, averaging 96 mm of rainfall and 75% relative humidity across the period.
April is close to Bloomington's year-round average. Across 45 years of records, the warmest April in Bloomington was 2010 — when the month averaged 13.7°C — while the coldest was 2018 at 6.5°C. Typical April days reach 16.6°C with nights near 4.2°C. The long-term trend is warming, about 0.3°C per decade.
April is a relatively wet time of year in Bloomington, averaging 96 mm of rainfall. The wettest April on record was 2013 with 176 mm, while the driest was 2023 at 38 mm.
Relative humidity in Bloomington during April averages 75%. The most humid April was 1993 at 82%, and the least humid was 2000 at 67%.
April receives about 4.8 kWh/m²/day of solar energy in Bloomington. The sunniest Aprils were 2004 and 2010 at 5.4 kWh/m²/day, and the cloudiest were 1984 and 1992 at 3.9.
Average wind speed in Bloomington during April is 4.1 m/s. The windiest Aprils were 1981 and 2011 at 4.6 m/s, while the calmest was 1989 at 3.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 9.9°C | 9.6°C | 11.1°C | 10.8°C | 10.6°C | +0.7°C |
| Avg High | 16.2°C | 15.7°C | 17.5°C | 17.1°C | 16.8°C | +0.6°C |
| Avg Low | 3.6°C | 3.5°C | 4.8°C | 4.6°C | 4.3°C | +0.7°C |
| Avg Rain | 96 mm | 97 mm | 92 mm | 102 mm | 93 mm | -3 mm |
April temperatures in Bloomington have risen by about 1.3°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -8.2°C (1982) to a record high of 28.4°C (2011).
Rainfall in April is a relatively wet time of year, averaging 96 mm, with a wettest year of 176 mm.
A good time to visit Bloomington
April is a good time to visit Bloomington, with days averaging 16.6°C and nights around 4.2°C (mean 10.4°C, close to Bloomington's yearly average) and higher rainfall. August and June 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 | 17.9°C | 11.7°C | 5.6°C | 26.8°C | -4.9°C | 103 mm | 72% | 4.1 m/s | 4.6 |
| 2024 | 17.8°C | 11.8°C | 5.8°C | 26.9°C | -2.4°C | 155 mm | 74% | 4.4 m/s | 4.7 |
| 2023 | 17.9°C | 10.9°C | 3.8°C | 26.3°C | -2.0°C | 38 mm | 71% | 3.9 m/s | 5.1 |
| 2022 | 15.0°C | 8.8°C | 2.7°C | 26.0°C | -4.2°C | 79 mm | 76% | 4.5 m/s | 4.4 |
| 2021 | 16.9°C | 10.9°C | 4.9°C | 27.6°C | -5.4°C | 64 mm | 73% | 3.7 m/s | 5.2 |
| 2020 | 15.1°C | 9.2°C | 3.2°C | 25.2°C | -3.7°C | 117 mm | 76% | 4 m/s | 5 |
| 2019 | 16.8°C | 10.7°C | 4.7°C | 25.3°C | -4.3°C | 138 mm | 78% | 4.1 m/s | 4.5 |
| 2018 ❄️ | 12.7°C | 6.5°C | 0.3°C | 24.7°C | -6.6°C | 51 mm | 74% | 3.7 m/s | 4.8 |
| 2017 | 18.8°C | 13.0°C | 7.1°C | 26.0°C | -1.3°C | 140 mm | 77% | 4 m/s | 4.6 |
| 2016 | 16.9°C | 10.6°C | 4.3°C | 26.4°C | -5.6°C | 81 mm | 76% | 3.9 m/s | 4.8 |
| 2015 | 18.1°C | 11.4°C | 4.8°C | 25.1°C | -4.2°C | 67 mm | 69% | 3.8 m/s | 5.1 |
| 2014 | 16.6°C | 10.1°C | 3.7°C | 24.5°C | -4.7°C | 82 mm | 74% | 4 m/s | 4.9 |
| 2013 🌧️ | 15.8°C | 9.6°C | 3.5°C | 27.0°C | -5.6°C | 176 mm | 77% | 4.1 m/s | 4.6 |
| 2012 | 18.3°C | 11.8°C | 5.3°C | 28.4°C | -2.4°C | 58 mm | 71% | 4.2 m/s | 5.1 |
| 2011 | 17.0°C | 11.0°C | 5.0°C | 28.4°C | -1.3°C | 155 mm | 78% | 4.6 m/s | 4.1 |
| 2010 🔥 | 19.9°C | 13.7°C | 7.5°C | 26.6°C | -0.3°C | 73 mm | 77% | 3.9 m/s | 5.4 |
| 2009 | 14.8°C | 9.4°C | 4.0°C | 25.5°C | -3.3°C | 168 mm | 81% | 4.2 m/s | 4.5 |
| 2008 | 15.7°C | 9.9°C | 4.1°C | 24.9°C | -2.2°C | 69 mm | 79% | 4.3 m/s | 4.7 |
| 2007 | 14.8°C | 8.8°C | 2.8°C | 27.9°C | -6.1°C | 81 mm | 76% | 4.1 m/s | 4.9 |
| 2006 | 19.8°C | 13.0°C | 6.2°C | 27.7°C | -2.6°C | 133 mm | 71% | 4.1 m/s | 5.2 |
| 2005 | 18.3°C | 12.1°C | 5.8°C | 26.8°C | -1.5°C | 55 mm | 75% | 3.9 m/s | 5.1 |
| 2004 | 18.2°C | 11.5°C | 4.8°C | 28.0°C | -3.2°C | 52 mm | 71% | 4.3 m/s | 5.4 |
| 2003 | 18.5°C | 11.6°C | 4.7°C | 28.1°C | -3.6°C | 82 mm | 70% | 4.3 m/s | 4.7 |
| 2002 | 17.5°C | 11.2°C | 4.9°C | 28.2°C | -5.0°C | 132 mm | 77% | 4.2 m/s | 4.5 |
| 2001 | 19.8°C | 13.3°C | 6.9°C | 28.1°C | -4.2°C | 74 mm | 73% | 4.5 m/s | 5.2 |
| 2000 | 17.2°C | 10.4°C | 3.6°C | 24.2°C | -3.3°C | 74 mm | 67% | 3.8 m/s | 4.8 |
| 1999 | 17.3°C | 11.6°C | 5.9°C | 24.0°C | 1.0°C | 133 mm | 78% | 4.3 m/s | 4.2 |
| 1998 | 16.3°C | 10.5°C | 4.8°C | 22.9°C | -2.4°C | 114 mm | 76% | 3.7 m/s | 4.3 |
| 1997 | 14.1°C | 7.6°C | 1.1°C | 23.1°C | -6.2°C | 53 mm | 71% | 3.7 m/s | 5.2 |
| 1996 | 15.3°C | 8.5°C | 1.7°C | 23.9°C | -5.2°C | 80 mm | 69% | 4.5 m/s | 4.7 |
| 1995 | 14.8°C | 8.8°C | 2.8°C | 24.3°C | -7.3°C | 123 mm | 75% | 4.2 m/s | 4.2 |
| 1994 | 15.6°C | 9.4°C | 3.2°C | 26.7°C | -5.0°C | 156 mm | 79% | 4.5 m/s | 4.8 |
| 1993 | 14.0°C | 8.5°C | 3.1°C | 21.8°C | -5.3°C | 125 mm | 82% | 3.9 m/s | 4.2 |
| 1992 | 15.3°C | 9.4°C | 3.4°C | 24.7°C | -4.5°C | 57 mm | 78% | 3.7 m/s | 3.9 |
| 1991 | 18.0°C | 12.0°C | 5.9°C | 24.7°C | -2.8°C | 85 mm | 78% | 4.3 m/s | 4.8 |
| 1990 | 15.8°C | 9.5°C | 3.3°C | 26.0°C | -5.8°C | 45 mm | 73% | 4 m/s | 4.7 |
| 1989 | 15.9°C | 9.5°C | 3.1°C | 28.1°C | -6.6°C | 110 mm | 73% | 3.4 m/s | 4.9 |
| 1988 | 16.4°C | 9.3°C | 2.2°C | 25.9°C | -4.1°C | 44 mm | 71% | 4.1 m/s | 4.9 |
| 1987 | 17.4°C | 10.8°C | 4.1°C | 27.9°C | -4.9°C | 57 mm | 74% | 3.5 m/s | 5.2 |
| 1986 | 18.2°C | 11.5°C | 4.9°C | 27.3°C | -3.5°C | 62 mm | 74% | 4.1 m/s | 5 |
| 1985 | 17.8°C | 12.0°C | 6.3°C | 25.4°C | -5.1°C | 48 mm | 80% | 4 m/s | 5.1 |
| 1984 | 13.8°C | 8.6°C | 3.4°C | 25.7°C | -2.9°C | 119 mm | 82% | 4.5 m/s | 3.9 |
| 1983 | 13.1°C | 7.6°C | 2.2°C | 22.1°C | -5.2°C | 158 mm | 81% | 3.9 m/s | — |
| 1982 | 13.4°C | 7.0°C | 0.5°C | 22.9°C | -8.2°C | 106 mm | 77% | 4.2 m/s | — |
| 1981 | 19.4°C | 12.5°C | 5.6°C | 27.5°C | -4.8°C | 156 mm | 71% | 4.6 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 16.6°C with lows near 4.2°C (mean 10.4°C), based on 45 years of NASA POWER data.
April averages 96 mm of rainfall in Bloomington, a relatively wet time of year. The wettest on record was 176 mm in 2013.
The hottest April reached 28.4°C in 2011. The coldest dipped to -8.2°C in 1982.
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 15.5°C to 17.1°C and overnight lows from 3.6°C to 4.6°C over the same span.
April is close to Bloomington's year-round average and a relatively wet time of year, so plan for around 16.6°C daytime highs and 4.2°C at night.
Not quite — April is the 6th coolest month in Bloomington, averaging 10.4°C.
For April in Bloomington, pack warm layers and a jacket for chilly mornings, with typical highs of 16.6°C and lows of 4.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 75% — quite humid.
Average wind speed in April is 4.1 m/s. The windiest April on record averaged 4.6 m/s (1981).
The wettest April on record was 2013 with 176 mm. On average, April sees 96 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 Bloomington 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.
