June is one of the warmer months of the year in Champaign, with average highs near 27.1°C and lows around 16.3°C (mean 21.7°C). It is a relatively wet time of year, averaging 110 mm of rainfall and 76% relative humidity across the period.
June is one of the warmer months of the year in Champaign. Across 45 years of records, the warmest June in Champaign was 2010 — when the month averaged 23.9°C — while the coldest was 1982 at 18.5°C. Typical June days reach 27.1°C with nights near 16.3°C. The long-term trend is warming, about 0.5°C per decade.
June is a relatively wet time of year in Champaign, averaging 110 mm of rainfall. The wettest June on record was 2010 with 221 mm, while the driest was 1988 at 13 mm.
Relative humidity in Champaign during June averages 76%. The most humid June was 1998 at 83%, and the least humid was 1988 at 51%.
June receives about 6.2 kWh/m²/day of solar energy in Champaign. The sunniest June was 2017 at 7.2 kWh/m²/day, and the cloudiest were 1985, 1998 and 2015 at 5.6.
Average wind speed in Champaign during June is 2.6 m/s. The windiest June was 1990 at 3.1 m/s, while the calmest was 1995 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.1°C | 21.1°C | 21.6°C | 22.5°C | 22.7°C | +1.6°C |
| Avg High | 26.8°C | 26.2°C | 27.0°C | 27.7°C | 28.4°C | +1.6°C |
| Avg Low | 15.4°C | 16.0°C | 16.1°C | 17.3°C | 17.0°C | +1.6°C |
| Avg Rain | 89 mm | 117 mm | 110 mm | 134 mm | 95 mm | +6 mm |
June temperatures in Champaign have risen by about 2.4°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 2.9°C (2003) to a record high of 41.5°C (2012).
Rainfall in June is a relatively wet time of year, averaging 110 mm, with a wettest year of 221 mm.
One of the best times to visit Champaign
June is one of the best times to visit Champaign. Expect days averaging 27.1°C and nights around 16.3°C (mean 21.7°C) — warmer than Champaign's yearly average — with higher rainfall (110 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 | 28.4°C | 23.4°C | 18.3°C | 33.8°C | 8.8°C | 119 mm | 78% | 2.5 m/s | 6.3 |
| 2024 | 28.9°C | 23.1°C | 17.3°C | 33.4°C | 9.8°C | 54 mm | 71% | 2.9 m/s | 6.4 |
| 2023 | 29.0°C | 22.1°C | 15.2°C | 34.1°C | 8.1°C | 67 mm | 60% | 2.6 m/s | 6.4 |
| 2022 | 28.6°C | 22.5°C | 16.3°C | 33.3°C | 10.6°C | 45 mm | 71% | 2.4 m/s | 6.6 |
| 2021 | 28.0°C | 23.1°C | 18.2°C | 32.9°C | 9.7°C | 190 mm | 77% | 2.6 m/s | 6.1 |
| 2020 | 27.5°C | 22.0°C | 16.5°C | 30.2°C | 9.1°C | 94 mm | 78% | 2.6 m/s | 6.6 |
| 2019 | 26.0°C | 21.2°C | 16.3°C | 31.0°C | 8.9°C | 116 mm | 82% | 2.7 m/s | 5.9 |
| 2018 | 28.7°C | 23.6°C | 18.6°C | 32.0°C | 11.7°C | 161 mm | 80% | 2.2 m/s | 6.1 |
| 2017 | 27.9°C | 22.1°C | 16.4°C | 32.0°C | 10.5°C | 60 mm | 72% | 2.8 m/s | 7.2 |
| 2016 | 28.1°C | 22.7°C | 17.3°C | 31.9°C | 10.9°C | 93 mm | 76% | 2.5 m/s | 7.1 |
| 2015 | 26.7°C | 21.9°C | 17.1°C | 31.1°C | 8.1°C | 211 mm | 82% | 2.8 m/s | 5.6 |
| 2014 | 27.4°C | 22.6°C | 17.7°C | 30.0°C | 10.1°C | 191 mm | 80% | 2.8 m/s | 6.2 |
| 2013 | 26.0°C | 21.2°C | 16.5°C | 31.1°C | 8.5°C | 123 mm | 82% | 2.7 m/s | 5.8 |
| 2012 | 30.6°C | 23.4°C | 16.2°C | 41.5°C | 9.2°C | 32 mm | 58% | 2.8 m/s | 7 |
| 2011 | 27.0°C | 22.1°C | 17.3°C | 32.4°C | 10.7°C | 130 mm | 81% | 2.8 m/s | 5.7 |
| 2010 🔥 🌧️ | 28.3°C | 23.9°C | 19.4°C | 31.2°C | 12.7°C | 221 mm | 82% | 2.5 m/s | 6.2 |
| 2009 | 26.5°C | 21.8°C | 17.0°C | 31.4°C | 6.3°C | 136 mm | 83% | 2.4 m/s | 5.8 |
| 2008 | 26.8°C | 21.9°C | 17.1°C | 30.0°C | 11.6°C | 204 mm | 81% | 3 m/s | 6.5 |
| 2007 | 27.3°C | 22.0°C | 16.6°C | 33.1°C | 9.0°C | 119 mm | 75% | 2.5 m/s | 6.2 |
| 2006 | 26.7°C | 21.0°C | 15.3°C | 31.7°C | 9.3°C | 66 mm | 74% | 2.4 m/s | 6.3 |
| 2005 | 29.0°C | 23.5°C | 17.9°C | 35.4°C | 10.8°C | 56 mm | 74% | 2.6 m/s | 6.4 |
| 2004 | 26.1°C | 20.8°C | 15.5°C | 30.8°C | 7.1°C | 99 mm | 77% | 2.5 m/s | 6.4 |
| 2003 | 26.0°C | 19.9°C | 13.8°C | 32.4°C | 2.9°C | 83 mm | 71% | 2.6 m/s | 6.1 |
| 2002 | 27.7°C | 22.5°C | 17.4°C | 31.7°C | 10.6°C | 87 mm | 80% | 2.3 m/s | 6.1 |
| 2001 | 26.5°C | 20.9°C | 15.3°C | 32.2°C | 7.8°C | 89 mm | 74% | 2.4 m/s | 6.3 |
| 2000 | 27.1°C | 21.2°C | 15.4°C | 32.5°C | 7.0°C | 157 mm | 72% | 3 m/s | 5.9 |
| 1999 | 26.5°C | 21.5°C | 16.5°C | 31.2°C | 6.8°C | 139 mm | 80% | 2.4 m/s | 6.1 |
| 1998 | 25.9°C | 21.5°C | 17.0°C | 32.0°C | 6.3°C | 213 mm | 83% | 2.9 m/s | 5.6 |
| 1997 | 25.8°C | 20.8°C | 15.8°C | 30.9°C | 9.9°C | 111 mm | 81% | 2.5 m/s | 5.7 |
| 1996 | 26.2°C | 21.1°C | 16.0°C | 31.3°C | 9.6°C | 111 mm | 81% | 2.5 m/s | 5.7 |
| 1995 | 26.3°C | 21.1°C | 15.9°C | 29.8°C | 9.5°C | 77 mm | 79% | 2 m/s | 6.2 |
| 1994 | 26.6°C | 21.4°C | 16.2°C | 31.5°C | 6.5°C | 80 mm | 79% | 2.3 m/s | 6.3 |
| 1993 | 25.4°C | 20.4°C | 15.5°C | 29.9°C | 5.8°C | 174 mm | 83% | 2.7 m/s | 5.7 |
| 1992 | 25.2°C | 19.3°C | 13.3°C | 31.9°C | 4.8°C | 56 mm | 72% | 2.4 m/s | 6 |
| 1991 | 27.7°C | 22.5°C | 17.3°C | 32.0°C | 11.4°C | 32 mm | 78% | 2.3 m/s | 6.7 |
| 1990 | 26.3°C | 21.1°C | 16.0°C | 30.0°C | 6.1°C | 176 mm | 80% | 3.1 m/s | 5.8 |
| 1989 | 25.9°C | 20.5°C | 15.0°C | 30.1°C | 9.9°C | 53 mm | 76% | 2.3 m/s | 6.3 |
| 1988 | 30.7°C | 22.7°C | 14.7°C | 39.4°C | 5.9°C | 13 mm | 51% | 2.7 m/s | 6.7 |
| 1987 | 28.9°C | 22.9°C | 16.9°C | 35.5°C | 9.7°C | 111 mm | 70% | 2.5 m/s | 6.5 |
| 1986 | 26.9°C | 21.5°C | 16.0°C | 31.5°C | 7.1°C | 131 mm | 80% | 2.6 m/s | 5.9 |
| 1985 | 24.7°C | 19.2°C | 13.7°C | 29.9°C | 6.3°C | 119 mm | 78% | 2.6 m/s | 5.6 |
| 1984 | 27.0°C | 21.9°C | 16.7°C | 29.3°C | 10.5°C | 32 mm | 80% | 3 m/s | 6.1 |
| 1983 | 26.3°C | 21.1°C | 16.0°C | 30.1°C | 7.5°C | 134 mm | 79% | 2.2 m/s | — |
| 1982 ❄️ | 24.0°C | 18.5°C | 13.0°C | 28.7°C | 7.2°C | 87 mm | 76% | 2.3 m/s | — |
| 1981 | 26.8°C | 21.5°C | 16.2°C | 30.3°C | 10.2°C | 116 mm | 78% | 2.9 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 27.1°C with lows near 16.3°C (mean 21.7°C), based on 45 years of NASA POWER data.
June averages 110 mm of rainfall in Champaign, a relatively wet time of year. The wettest on record was 221 mm in 2010.
The hottest June reached 41.5°C in 2012. The coldest dipped to 2.9°C in 2003.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 2.4°C. Daytime highs moved from 25.8°C to 28.6°C and overnight lows from 15.1°C to 17.1°C over the same span.
June is one of the warmer months of the year in Champaign and a relatively wet time of year, so plan for around 27.1°C daytime highs and 16.3°C at night.
Not quite — June is the 10th coolest month in Champaign, averaging 21.7°C.
For June in Champaign, pack light layers you can adjust through the day, with typical highs of 27.1°C and lows of 16.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 76% — quite humid.
Average wind speed in June is 2.6 m/s. The windiest June on record averaged 3.1 m/s (1990).
The wettest June on record was 2010 with 221 mm. On average, June sees 110 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 Champaign behaves each June, 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 June specifically, along with year-by-year records and how the month has changed over the decades.
