October is one of the warmer months of the year in Belleville, with average highs near 13.6°C and lows around 7.5°C (mean 10.6°C). It is about average for rainfall, averaging 72 mm of rainfall and 77% relative humidity across the period.
October is one of the warmer months of the year in Belleville. Across 45 years of records, the warmest October in Belleville was 2021 — when the month averaged 14.6°C — while the coldest was 1988 at 7.2°C. Typical October days reach 13.6°C with nights near 7.5°C. The long-term trend is warming, about 0.9°C per decade.
October is about average for rainfall in Belleville, averaging 72 mm of rainfall. The wettest October on record was 1995 with 150 mm, while the driest was 1994 at 27 mm.
Relative humidity in Belleville during October averages 77%. The most humid October was 1995 at 83%, and the least humid was 2010 at 71%.
October receives about 2.5 kWh/m²/day of solar energy in Belleville. The sunniest October was 1998 at 3.1 kWh/m²/day, and the cloudiest were 2009, 2012 and 2014, among others at 2.2.
Average wind speed in Belleville during October is 2.8 m/s. The windiest October was 2006 at 3.4 m/s, while the calmest were 1984 and 1994 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 9.5°C | 9.3°C | 10.4°C | 11.7°C | 12.6°C | +3.1°C |
| Avg High | 12.6°C | 12.5°C | 13.4°C | 14.7°C | 15.7°C | +3.1°C |
| Avg Low | 6.4°C | 6.0°C | 7.4°C | 8.7°C | 9.6°C | +3.2°C |
| Avg Rain | 69 mm | 73 mm | 74 mm | 79 mm | 61 mm | -8 mm |
October temperatures in Belleville have risen by about 2.6°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -2.4°C (1988) to a record high of 26.2°C (2023).
Rainfall in October is about average for rainfall, averaging 72 mm, with a wettest year of 150 mm.
A good time to visit Belleville
October is a good time to visit Belleville, with days averaging 13.6°C and nights around 7.5°C (mean 10.6°C, warmer than Belleville's yearly average) and moderate rainfall. July and August are marginally more temperate, but October still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 16.0°C | 12.7°C | 9.4°C | 24.5°C | 2.4°C | 84 mm | 72% | 2.8 m/s | 3 |
| 2024 | 16.2°C | 12.7°C | 9.3°C | 22.1°C | 3.6°C | 33 mm | 73% | 2.9 m/s | 3 |
| 2023 | 16.2°C | 13.4°C | 10.6°C | 26.2°C | 1.7°C | 40 mm | 75% | 2.8 m/s | 2.3 |
| 2022 | 14.9°C | 11.6°C | 8.3°C | 20.7°C | 4.2°C | 39 mm | 72% | 2.6 m/s | 2.8 |
| 2021 🔥 | 17.2°C | 14.6°C | 11.9°C | 22.6°C | 6.0°C | 104 mm | 81% | 2.8 m/s | 2.3 |
| 2020 | 13.6°C | 10.8°C | 8.0°C | 20.6°C | -0.2°C | 66 mm | 75% | 3.1 m/s | 2.3 |
| 2019 | 14.9°C | 11.8°C | 8.7°C | 24.6°C | 3.7°C | 104 mm | 78% | 2.9 m/s | 2.6 |
| 2018 | 12.7°C | 9.7°C | 6.8°C | 23.6°C | 0.4°C | 71 mm | 78% | 3.2 m/s | 2.3 |
| 2017 | 17.2°C | 14.1°C | 11.0°C | 23.5°C | 5.3°C | 118 mm | 77% | 3.1 m/s | 2.5 |
| 2016 | 15.2°C | 12.1°C | 9.0°C | 22.2°C | 1.0°C | 85 mm | 76% | 2.9 m/s | 2.6 |
| 2015 | 13.3°C | 10.3°C | 7.3°C | 19.5°C | 0.3°C | 77 mm | 72% | 3.3 m/s | 2.8 |
| 2014 | 14.9°C | 12.0°C | 9.1°C | 22.6°C | 3.0°C | 64 mm | 78% | 3.1 m/s | 2.2 |
| 2013 | 15.3°C | 12.4°C | 9.5°C | 23.3°C | -0.3°C | 86 mm | 76% | 3 m/s | 2.7 |
| 2012 | 14.6°C | 11.7°C | 8.9°C | 21.5°C | 3.7°C | 67 mm | 77% | 3.1 m/s | 2.2 |
| 2011 | 14.6°C | 11.6°C | 8.6°C | 23.8°C | 0.9°C | 64 mm | 76% | 3 m/s | 2.4 |
| 2010 | 14.3°C | 11.2°C | 8.2°C | 20.8°C | 1.0°C | 50 mm | 71% | 3.1 m/s | 2.8 |
| 2009 | 12.1°C | 9.4°C | 6.7°C | 18.1°C | 1.9°C | 82 mm | 78% | 2.9 m/s | 2.2 |
| 2008 | 13.2°C | 10.0°C | 6.8°C | 19.9°C | -1.1°C | 75 mm | 75% | 2.9 m/s | 2.8 |
| 2007 | 17.2°C | 14.0°C | 10.9°C | 25.0°C | 3.2°C | 67 mm | 79% | 2.6 m/s | 2.4 |
| 2006 | 12.7°C | 9.8°C | 7.0°C | 20.4°C | 0.8°C | 133 mm | 81% | 3.4 m/s | 2.2 |
| 2005 | 14.3°C | 11.4°C | 8.5°C | 23.5°C | 1.8°C | 73 mm | 82% | 2.8 m/s | 2.3 |
| 2004 | 14.2°C | 11.4°C | 8.5°C | 20.8°C | 4.2°C | 58 mm | 78% | 3.1 m/s | 2.5 |
| 2003 | 11.5°C | 8.5°C | 5.6°C | 20.2°C | 0.5°C | 73 mm | 81% | 2.5 m/s | 2.5 |
| 2002 | 11.6°C | 8.6°C | 5.6°C | 22.7°C | -1.4°C | 63 mm | 77% | 2.6 m/s | 2.5 |
| 2001 | 12.7°C | 9.7°C | 6.7°C | 19.6°C | 0.0°C | 76 mm | 80% | 2.9 m/s | 2.4 |
| 2000 | 14.2°C | 11.0°C | 7.8°C | 20.7°C | 0.2°C | 38 mm | 79% | 2.6 m/s | 2.5 |
| 1999 | 12.3°C | 9.0°C | 5.6°C | 17.8°C | -1.1°C | 84 mm | 76% | 2.7 m/s | 2.7 |
| 1998 | 14.9°C | 11.7°C | 8.4°C | 19.3°C | 2.3°C | 52 mm | 75% | 3 m/s | 3.1 |
| 1997 | 13.2°C | 10.1°C | 6.9°C | 21.2°C | 0.8°C | 42 mm | 75% | 2.7 m/s | 3 |
| 1996 | 11.5°C | 8.4°C | 5.4°C | 18.8°C | -2.0°C | 72 mm | 80% | 2.7 m/s | 2.5 |
| 1995 🌧️ | 12.8°C | 9.9°C | 7.0°C | 18.0°C | 0.4°C | 150 mm | 83% | 2.9 m/s | 2.4 |
| 1994 | 13.1°C | 9.6°C | 6.1°C | 19.4°C | 1.1°C | 27 mm | 75% | 2.2 m/s | 2.9 |
| 1993 | 11.2°C | 7.7°C | 4.1°C | 17.9°C | -1.5°C | 77 mm | 78% | 2.9 m/s | 2.4 |
| 1992 | 10.7°C | 7.3°C | 3.8°C | 18.2°C | -1.9°C | 49 mm | 79% | 2.5 m/s | 2.3 |
| 1991 | 13.5°C | 10.2°C | 6.9°C | 21.7°C | 0.1°C | 62 mm | 78% | 2.5 m/s | 2.5 |
| 1990 | 12.2°C | 9.0°C | 5.7°C | 20.1°C | -1.8°C | 113 mm | 82% | 2.7 m/s | 2.4 |
| 1989 | 12.2°C | 9.0°C | 5.7°C | 18.0°C | 1.4°C | 94 mm | 83% | 2.6 m/s | 2.5 |
| 1988 ❄️ | 9.8°C | 7.2°C | 4.7°C | 20.2°C | -2.4°C | 97 mm | 79% | 2.9 m/s | 2.4 |
| 1987 | 10.9°C | 7.8°C | 4.7°C | 15.7°C | -0.4°C | 49 mm | 77% | 2.5 m/s | 2.7 |
| 1986 | 13.0°C | 9.7°C | 6.4°C | 18.5°C | 0.2°C | 60 mm | 80% | 2.8 m/s | 2.8 |
| 1985 | 14.1°C | 10.9°C | 7.8°C | 17.7°C | -0.5°C | 65 mm | 74% | 3 m/s | 2.4 |
| 1984 | 15.4°C | 12.0°C | 8.7°C | 19.2°C | 2.6°C | 29 mm | 76% | 2.2 m/s | 2.8 |
| 1983 | 13.5°C | 10.4°C | 7.4°C | 23.3°C | 0.0°C | 124 mm | 77% | 3.3 m/s | — |
| 1982 | 14.2°C | 11.0°C | 7.7°C | 19.9°C | 0.9°C | 33 mm | 77% | 2.6 m/s | — |
| 1981 | 10.5°C | 7.5°C | 4.4°C | 16.6°C | 0.4°C | 70 mm | 80% | 2.8 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 13.6°C with lows near 7.5°C (mean 10.6°C), based on 45 years of NASA POWER data.
October averages 72 mm of rainfall in Belleville, about average for rainfall. The wettest on record was 150 mm in 1995.
The hottest October reached 26.2°C in 2023. The coldest dipped to -2.4°C in 1988.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 2.6°C. Daytime highs moved from 13.5°C to 16.1°C and overnight lows from 7.2°C to 9.9°C over the same span.
October is one of the warmer months of the year in Belleville and about average for rainfall, so plan for around 13.6°C daytime highs and 7.5°C at night.
Not quite — October is the 7th coolest month in Belleville, averaging 10.6°C.
For October in Belleville, pack warm layers and a jacket for chilly mornings, with typical highs of 13.6°C and lows of 7.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 77% — quite humid.
Average wind speed in October is 2.8 m/s. The windiest October on record averaged 3.4 m/s (2006).
The wettest October on record was 1995 with 150 mm. On average, October sees 72 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 October, 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 October specifically, along with year-by-year records and how the month has changed over the decades.
