October is one of the warmer months of the year in Saint-Jérôme, with average highs near 12°C and lows around 2.4°C (mean 7.2°C). It is a relatively wet time of year, averaging 94 mm of rainfall and 82% relative humidity across the period.
October is one of the warmer months of the year in Saint-Jérôme. Across 45 years of records, the warmest Octobers in Saint-Jérôme were 2017 and 2021 — when the month averaged 11.1°C — while the coldest was 1981 at 3.8°C. Typical October days reach 12°C with nights near 2.4°C. The long-term trend is warming, about 0.7°C per decade.
October is a relatively wet time of year in Saint-Jérôme, averaging 94 mm of rainfall. The wettest October on record was 2019 with 174 mm, while the driest was 1994 at 13 mm.
Relative humidity in Saint-Jérôme during October averages 82%. The most humid October was 2005 at 88%, and the least humid was 1994 at 73%.
October receives about 2.4 kWh/m²/day of solar energy in Saint-Jérôme. The sunniest Octobers were 1984, 1997 and 2024 at 2.9 kWh/m²/day, and the cloudiest were 1988, 2006 and 2018 at 2.
Average wind speed in Saint-Jérôme during October is 1 m/s. The windiest October was 1995 at 1.3 m/s, while the calmest were 2009, 2022 and 2025, among others at 0.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 6.1°C | 6.8°C | 6.8°C | 7.7°C | 9.3°C | +3.2°C |
| Avg High | 11.0°C | 11.8°C | 11.3°C | 12.4°C | 14.5°C | +3.5°C |
| Avg Low | 1.1°C | 1.8°C | 2.4°C | 3.1°C | 4.2°C | +3.1°C |
| Avg Rain | 86 mm | 73 mm | 112 mm | 112 mm | 78 mm | -8 mm |
October temperatures in Saint-Jérôme have risen by about 3.5°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -7.3°C (2009) to a record high of 29.7°C (2023).
Rainfall in October is a relatively wet time of year, averaging 94 mm, with a wettest year of 174 mm.
A good time to visit Saint-Jérôme
October is a good time to visit Saint-Jérôme, with days averaging 12°C and nights around 2.4°C (mean 7.2°C, warmer than Saint-Jérôme's yearly average) and higher 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 | 15.2°C | 9.6°C | 4.1°C | 28.4°C | -1.1°C | 96 mm | 78% | 0.9 m/s | 2.8 |
| 2024 | 14.7°C | 9.0°C | 3.4°C | 22.8°C | -6.3°C | 42 mm | 78% | 1.1 m/s | 2.9 |
| 2023 | 15.5°C | 11.0°C | 6.4°C | 29.7°C | -6.1°C | 115 mm | 84% | 1 m/s | 2.1 |
| 2022 | 14.7°C | 8.7°C | 2.8°C | 21.5°C | -4.3°C | 43 mm | 78% | 0.9 m/s | 2.8 |
| 2021 | 15.7°C | 11.1°C | 6.5°C | 23.1°C | -1.9°C | 94 mm | 83% | 1 m/s | 2.2 |
| 2020 | 11.2°C | 6.5°C | 1.8°C | 21.8°C | -5.4°C | 79 mm | 82% | 1 m/s | 2.3 |
| 2019 🌧️ | 12.8°C | 8.1°C | 3.4°C | 16.5°C | -0.8°C | 174 mm | 86% | 1 m/s | 2.4 |
| 2018 | 9.4°C | 5.0°C | 0.5°C | 25.7°C | -4.9°C | 75 mm | 82% | 1.1 m/s | 2 |
| 2017 🔥 | 16.3°C | 11.1°C | 5.9°C | 22.6°C | -1.5°C | 123 mm | 85% | 1.1 m/s | 2.6 |
| 2016 | 12.2°C | 7.6°C | 3.1°C | 22.2°C | -4.0°C | 163 mm | 84% | 1 m/s | 2.3 |
| 2015 | 10.4°C | 5.4°C | 0.4°C | 21.0°C | -5.6°C | 85 mm | 79% | 1.1 m/s | 2.6 |
| 2014 | 12.9°C | 8.8°C | 4.8°C | 22.5°C | -2.1°C | 131 mm | 87% | 1.1 m/s | 2.2 |
| 2013 | 13.1°C | 8.2°C | 3.3°C | 21.2°C | -5.7°C | 67 mm | 83% | 1 m/s | 2.5 |
| 2012 | 13.3°C | 8.9°C | 4.4°C | 19.1°C | -1.9°C | 107 mm | 86% | 1 m/s | 2.1 |
| 2011 | 12.6°C | 8.2°C | 3.8°C | 23.3°C | -4.4°C | 106 mm | 85% | 1.1 m/s | 2.4 |
| 2010 | 10.7°C | 6.2°C | 1.6°C | 18.0°C | -4.4°C | 88 mm | 82% | 1.1 m/s | 2.3 |
| 2009 | 9.0°C | 5.0°C | 0.9°C | 15.2°C | -7.3°C | 105 mm | 86% | 0.9 m/s | 2.2 |
| 2008 | 11.2°C | 6.5°C | 1.8°C | 19.5°C | -4.7°C | 127 mm | 84% | 1 m/s | 2.5 |
| 2007 | 14.3°C | 9.4°C | 4.5°C | 23.8°C | -4.6°C | 136 mm | 86% | 0.9 m/s | 2.6 |
| 2006 | 10.0°C | 6.0°C | 2.0°C | 20.0°C | -3.9°C | 158 mm | 87% | 1.1 m/s | 2 |
| 2005 | 12.0°C | 8.2°C | 4.4°C | 25.0°C | -3.3°C | 145 mm | 88% | 1.1 m/s | 2.2 |
| 2004 | 12.6°C | 7.6°C | 2.6°C | 20.9°C | -3.1°C | 57 mm | 84% | 1 m/s | 2.6 |
| 2003 | 9.7°C | 5.6°C | 1.6°C | 22.6°C | -4.2°C | 163 mm | 86% | 1.1 m/s | 2.3 |
| 2002 | 9.4°C | 4.8°C | 0.2°C | 24.8°C | -5.0°C | 107 mm | 83% | 1 m/s | 2.5 |
| 2001 | 13.0°C | 8.4°C | 3.7°C | 21.0°C | -4.1°C | 83 mm | 82% | 1.1 m/s | 2.4 |
| 2000 | 11.7°C | 6.8°C | 1.9°C | 20.6°C | -4.2°C | 41 mm | 84% | 1 m/s | 2.3 |
| 1999 | 10.7°C | 5.5°C | 0.3°C | 17.7°C | -5.6°C | 86 mm | 80% | 1.1 m/s | 2.5 |
| 1998 | 13.1°C | 8.1°C | 3.2°C | 20.1°C | -2.5°C | 69 mm | 78% | 1.2 m/s | 2.5 |
| 1997 | 11.8°C | 6.5°C | 1.3°C | 24.0°C | -5.7°C | 34 mm | 75% | 0.9 m/s | 2.9 |
| 1996 | 11.6°C | 6.6°C | 1.5°C | 20.8°C | -4.2°C | 66 mm | 77% | 1.2 m/s | 2.4 |
| 1995 | 14.2°C | 9.3°C | 4.4°C | 24.6°C | -5.2°C | 102 mm | 79% | 1.3 m/s | 2.4 |
| 1994 | 14.2°C | 8.6°C | 3.0°C | 21.8°C | -1.9°C | 13 mm | 73% | 0.9 m/s | 2.7 |
| 1993 | 9.4°C | 4.7°C | -0.1°C | 19.1°C | -5.5°C | 77 mm | 79% | 1.2 m/s | 2.3 |
| 1992 | 9.5°C | 4.7°C | -0.1°C | 17.7°C | -5.0°C | 47 mm | 81% | 1 m/s | 2.2 |
| 1991 | 12.4°C | 7.1°C | 1.8°C | 22.6°C | -5.8°C | 111 mm | 84% | 1 m/s | 2.3 |
| 1990 | 11.2°C | 6.7°C | 2.2°C | 22.0°C | -5.5°C | 125 mm | 86% | 1.1 m/s | 2.3 |
| 1989 | 12.3°C | 7.3°C | 2.4°C | 21.7°C | -4.2°C | 119 mm | 84% | 1 m/s | 2.5 |
| 1988 | 8.6°C | 4.4°C | 0.2°C | 22.5°C | -5.7°C | 117 mm | 85% | 1.2 m/s | 2 |
| 1987 | 10.3°C | 5.2°C | 0.1°C | 17.9°C | -4.7°C | 76 mm | 83% | 1 m/s | 2.5 |
| 1986 | 10.5°C | 5.4°C | 0.2°C | 17.8°C | -5.9°C | 62 mm | 84% | 0.9 m/s | 2.4 |
| 1985 | 11.7°C | 6.7°C | 1.6°C | 18.2°C | -4.9°C | 92 mm | 82% | 1 m/s | 2.4 |
| 1984 | 13.1°C | 8.0°C | 2.8°C | 20.7°C | -4.9°C | 52 mm | 81% | 0.9 m/s | 2.9 |
| 1983 | 11.1°C | 6.4°C | 1.6°C | 22.4°C | -4.8°C | 109 mm | 82% | 1.1 m/s | — |
| 1982 | 12.4°C | 7.3°C | 2.2°C | 19.3°C | -5.3°C | 43 mm | 83% | 1 m/s | — |
| 1981 ❄️ | 8.6°C | 3.8°C | -0.9°C | 15.4°C | -5.5°C | 107 mm | 85% | 0.9 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 12°C with lows near 2.4°C (mean 7.2°C), based on 45 years of NASA POWER data.
October averages 94 mm of rainfall in Saint-Jérôme, a relatively wet time of year. The wettest on record was 174 mm in 2019.
The hottest October reached 29.7°C in 2023. The coldest dipped to -7.3°C in 2009.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 3.5°C. Daytime highs moved from 11.4°C to 15.2°C and overnight lows from 1.5°C to 4.6°C over the same span.
October is one of the warmer months of the year in Saint-Jérôme and a relatively wet time of year, so plan for around 12°C daytime highs and 2.4°C at night.
Not quite — October is the 7th coolest month in Saint-Jérôme, averaging 7.2°C.
For October in Saint-Jérôme, pack warm layers and a jacket for chilly mornings, with typical highs of 12°C and lows of 2.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 82% — quite humid.
Average wind speed in October is 1 m/s. The windiest October on record averaged 1.3 m/s (1995).
The wettest October on record was 2019 with 174 mm. On average, October sees 94 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 Saint-Jérôme 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.
