July is one of the warmer months of the year in Belleville, with average highs near 24.8°C and lows around 17.5°C (mean 21.2°C). It is about average for rainfall, averaging 66 mm of rainfall and 72% relative humidity across the period.
July is one of the warmer months of the year in Belleville. Across 45 years of records, the warmest July in Belleville was 2020 — when the month averaged 24.6°C — while the coldest was 1992 at 17.3°C. Typical July days reach 24.8°C with nights near 17.5°C. The long-term trend is warming, about 0.5°C per decade.
July is about average for rainfall in Belleville, averaging 66 mm of rainfall. The wettest July on record was 2004 with 157 mm, while the driest was 1989 at 20 mm.
Relative humidity in Belleville during July averages 72%. The most humid July was 2004 at 83%, and the least humid was 2012 at 64%.
July receives about 6 kWh/m²/day of solar energy in Belleville. The sunniest July was 1989 at 6.7 kWh/m²/day, and the cloudiest was 1984 at 5.
Average wind speed in Belleville during July is 2 m/s. The windiest Julys were 1997 and 1999 at 2.3 m/s, while the calmest were 2019, 2023 and 2025, among others at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.1°C | 20.0°C | 20.4°C | 22.2°C | 22.6°C | +1.5°C |
| Avg High | 25.0°C | 23.8°C | 23.8°C | 25.8°C | 26.2°C | +1.2°C |
| Avg Low | 17.2°C | 16.3°C | 17.0°C | 18.7°C | 19.0°C | +1.8°C |
| Avg Rain | 53 mm | 64 mm | 86 mm | 55 mm | 74 mm | +21 mm |
July temperatures in Belleville have risen by about 1.4°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 8.5°C (2001) to a record high of 32.6°C (2012).
Rainfall in July is about average for rainfall, averaging 66 mm, with a wettest year of 157 mm.
One of the best times to visit Belleville
July is one of the best times to visit Belleville. Expect days averaging 24.8°C and nights around 17.5°C (mean 21.2°C) — warmer than Belleville's yearly average — with moderate rainfall (66 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 | 27.1°C | 23.2°C | 19.3°C | 30.8°C | 14.3°C | 28 mm | 68% | 1.7 m/s | 6.2 |
| 2024 | 26.1°C | 22.5°C | 18.9°C | 28.5°C | 12.7°C | 108 mm | 73% | 1.8 m/s | 5.9 |
| 2023 | 25.8°C | 22.3°C | 18.8°C | 29.4°C | 15.2°C | 96 mm | 71% | 1.7 m/s | 5.7 |
| 2022 | 25.6°C | 22.0°C | 18.4°C | 29.0°C | 14.4°C | 60 mm | 66% | 2.1 m/s | 6.1 |
| 2021 | 24.5°C | 21.0°C | 17.5°C | 28.4°C | 13.9°C | 99 mm | 74% | 1.9 m/s | 5.1 |
| 2020 🔥 | 28.2°C | 24.6°C | 20.9°C | 31.2°C | 18.3°C | 55 mm | 71% | 2 m/s | 6.3 |
| 2019 | 25.9°C | 22.5°C | 19.2°C | 28.9°C | 15.4°C | 48 mm | 76% | 1.7 m/s | 6.5 |
| 2018 | 26.6°C | 23.0°C | 19.5°C | 29.2°C | 15.2°C | 45 mm | 69% | 2 m/s | 6.5 |
| 2017 | 24.2°C | 21.0°C | 17.9°C | 27.7°C | 15.1°C | 78 mm | 78% | 2 m/s | 5.6 |
| 2016 | 26.6°C | 22.9°C | 19.2°C | 30.5°C | 14.3°C | 30 mm | 65% | 2.2 m/s | 6.3 |
| 2015 | 24.5°C | 20.6°C | 16.8°C | 29.6°C | 12.1°C | 38 mm | 71% | 1.8 m/s | 6.5 |
| 2014 | 23.3°C | 19.9°C | 16.5°C | 26.5°C | 13.0°C | 82 mm | 73% | 2.2 m/s | 5.7 |
| 2013 | 25.8°C | 22.4°C | 18.9°C | 31.0°C | 14.1°C | 51 mm | 71% | 1.9 m/s | 6 |
| 2012 | 27.5°C | 23.7°C | 19.8°C | 32.6°C | 17.3°C | 50 mm | 64% | 1.9 m/s | 6.5 |
| 2011 | 27.3°C | 23.4°C | 19.4°C | 31.7°C | 13.6°C | 60 mm | 67% | 1.9 m/s | 6.6 |
| 2010 | 26.6°C | 23.0°C | 19.3°C | 30.2°C | 12.5°C | 69 mm | 71% | 2.1 m/s | 6.2 |
| 2009 | 22.2°C | 19.1°C | 15.9°C | 25.4°C | 12.6°C | 89 mm | 76% | 2 m/s | 5.4 |
| 2008 | 24.1°C | 21.0°C | 17.8°C | 28.1°C | 14.1°C | 101 mm | 77% | 2 m/s | 5.7 |
| 2007 | 24.1°C | 20.4°C | 16.7°C | 29.4°C | 11.9°C | 76 mm | 71% | 1.7 m/s | 5.7 |
| 2006 | 26.0°C | 22.6°C | 19.2°C | 29.6°C | 15.5°C | 110 mm | 74% | 2.2 m/s | 5.8 |
| 2005 | 27.3°C | 23.5°C | 19.7°C | 31.5°C | 14.3°C | 64 mm | 68% | 2 m/s | 6.2 |
| 2004 🌧️ | 22.6°C | 19.8°C | 17.0°C | 25.4°C | 13.2°C | 157 mm | 83% | 1.9 m/s | 5.1 |
| 2003 | 22.9°C | 19.3°C | 15.6°C | 26.7°C | 12.4°C | 79 mm | 75% | 2.1 m/s | 5.8 |
| 2002 | 24.7°C | 20.7°C | 16.8°C | 27.8°C | 11.5°C | 71 mm | 73% | 2 m/s | 6.5 |
| 2001 | 22.5°C | 18.6°C | 14.7°C | 27.6°C | 8.5°C | 29 mm | 69% | 1.9 m/s | 6.2 |
| 2000 | 22.1°C | 19.1°C | 16.2°C | 25.0°C | 12.6°C | 82 mm | 79% | 1.9 m/s | 5.6 |
| 1999 | 25.6°C | 21.8°C | 18.1°C | 29.7°C | 12.4°C | 81 mm | 70% | 2.3 m/s | 6.3 |
| 1998 | 24.3°C | 21.0°C | 17.7°C | 27.7°C | 14.0°C | 75 mm | 73% | 2.1 m/s | 6.1 |
| 1997 | 24.4°C | 20.5°C | 16.7°C | 28.0°C | 12.3°C | 40 mm | 69% | 2.3 m/s | 6.3 |
| 1996 | 21.9°C | 18.0°C | 14.1°C | 24.4°C | 10.6°C | 61 mm | 74% | 1.9 m/s | 6.1 |
| 1995 | 24.2°C | 20.5°C | 16.7°C | 29.3°C | 12.0°C | 70 mm | 74% | 2 m/s | 5.5 |
| 1994 | 24.0°C | 20.5°C | 16.9°C | 27.8°C | 12.3°C | 43 mm | 75% | 1.8 m/s | 5.8 |
| 1993 | 24.0°C | 20.2°C | 16.4°C | 27.4°C | 11.9°C | 51 mm | 74% | 2 m/s | 6.2 |
| 1992 ❄️ | 20.9°C | 17.3°C | 13.7°C | 23.2°C | 10.7°C | 115 mm | 77% | 2.1 m/s | 5.7 |
| 1991 | 24.5°C | 20.6°C | 16.6°C | 28.4°C | 12.7°C | 50 mm | 69% | 2.1 m/s | 6 |
| 1990 | 23.8°C | 20.0°C | 16.2°C | 28.4°C | 11.9°C | 56 mm | 74% | 2 m/s | 6 |
| 1989 | 24.7°C | 20.6°C | 16.5°C | 29.2°C | 12.1°C | 20 mm | 70% | 1.8 m/s | 6.7 |
| 1988 | 26.1°C | 22.0°C | 17.9°C | 32.1°C | 9.6°C | 61 mm | 67% | 1.8 m/s | 5.9 |
| 1987 | 26.5°C | 22.7°C | 18.9°C | 30.0°C | 13.9°C | 40 mm | 68% | 2.2 m/s | 6.1 |
| 1986 | 24.3°C | 20.6°C | 16.9°C | 28.6°C | 11.1°C | 66 mm | 72% | 1.9 m/s | 5.8 |
| 1985 | 23.6°C | 19.8°C | 16.0°C | 27.8°C | 12.4°C | 88 mm | 71% | 2 m/s | 6.3 |
| 1984 | 23.5°C | 19.8°C | 16.2°C | 27.6°C | 11.1°C | 53 mm | 73% | 2.1 m/s | 5 |
| 1983 | 26.6°C | 22.4°C | 18.3°C | 29.8°C | 12.7°C | 32 mm | 68% | 2 m/s | — |
| 1982 | 24.7°C | 20.6°C | 16.4°C | 28.7°C | 10.2°C | 38 mm | 69% | 1.9 m/s | — |
| 1981 | 25.2°C | 21.2°C | 17.3°C | 29.1°C | 13.2°C | 80 mm | 71% | 2.1 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 24.8°C with lows near 17.5°C (mean 21.2°C), based on 45 years of NASA POWER data.
July averages 66 mm of rainfall in Belleville, about average for rainfall. The wettest on record was 157 mm in 2004.
The hottest July reached 32.6°C in 2012. The coldest dipped to 8.5°C in 2001.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.4°C. Daytime highs moved from 24.7°C to 25.8°C and overnight lows from 16.8°C to 18.6°C over the same span.
July is one of the warmer months of the year in Belleville and about average for rainfall, so plan for around 24.8°C daytime highs and 17.5°C at night.
Not quite — July is the 12th coolest month in Belleville, averaging 21.2°C.
For July in Belleville, pack light layers you can adjust through the day, with typical highs of 24.8°C and lows of 17.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 72% — moderately humid.
Average wind speed in July is 2 m/s. The windiest July on record averaged 2.3 m/s (1997).
The wettest July on record was 2004 with 157 mm. On average, July sees 66 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 Belleville behaves each July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
