October is one of the warmer months of the year in Salaberry-de-Valleyfield, with average highs near 13.2°C and lows around 3.5°C (mean 8.4°C). It is a relatively wet time of year, averaging 94 mm of rainfall and 81% relative humidity across the period.
October is one of the warmer months of the year in Salaberry-de-Valleyfield. Across 45 years of records, the warmest October in Salaberry-de-Valleyfield was 2017 — when the month averaged 12.3°C — while the coldest was 1981 at 4.7°C. Typical October days reach 13.2°C with nights near 3.5°C. The long-term trend is warming, about 0.8°C per decade.
October is a relatively wet time of year in Salaberry-de-Valleyfield, averaging 94 mm of rainfall. The wettest October on record was 2019 with 189 mm, while the driest was 1994 at 19 mm.
Relative humidity in Salaberry-de-Valleyfield during October averages 81%. The most humid October was 2005 at 87%, and the least humid was 2022 at 73%.
October receives about 2.4 kWh/m²/day of solar energy in Salaberry-de-Valleyfield. The sunniest October was 2025 at 3 kWh/m²/day, and the cloudiest were 1988 and 2006 at 2.
Average wind speed in Salaberry-de-Valleyfield during October is 0.9 m/s. The windiest Octobers were 1995 and 1996 at 1.1 m/s, while the calmest were 1994, 2007 and 2022, among others at 0.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 7.1°C | 7.7°C | 8.0°C | 9.0°C | 10.5°C | +3.4°C |
| Avg High | 12.1°C | 12.6°C | 12.5°C | 13.7°C | 15.7°C | +3.6°C |
| Avg Low | 2.2°C | 2.8°C | 3.4°C | 4.3°C | 5.3°C | +3.1°C |
| Avg Rain | 83 mm | 84 mm | 107 mm | 108 mm | 79 mm | -4 mm |
October temperatures in Salaberry-de-Valleyfield have risen by about 3.6°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -5.8°C (1997) to a record high of 30.9°C (2023).
Rainfall in October is a relatively wet time of year, averaging 94 mm, with a wettest year of 189 mm.
A good time to visit Salaberry-de-Valleyfield
October is a good time to visit Salaberry-de-Valleyfield, with days averaging 13.2°C and nights around 3.5°C (mean 8.4°C, warmer than Salaberry-de-Valleyfield'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 | 16.5°C | 10.7°C | 4.9°C | 29.6°C | -1.4°C | 98 mm | 74% | 0.9 m/s | 3 |
| 2024 | 15.8°C | 10.2°C | 4.6°C | 23.8°C | -5.5°C | 38 mm | 75% | 0.9 m/s | 2.9 |
| 2023 | 16.4°C | 11.7°C | 7.1°C | 30.9°C | -4.7°C | 110 mm | 82% | 0.9 m/s | 2.1 |
| 2022 | 16.1°C | 10.0°C | 3.9°C | 23.2°C | -2.2°C | 36 mm | 73% | 0.8 m/s | 2.9 |
| 2021 | 16.7°C | 12.2°C | 7.8°C | 24.8°C | 0.4°C | 105 mm | 82% | 0.9 m/s | 2.2 |
| 2020 | 12.8°C | 8.0°C | 3.2°C | 23.6°C | -4.4°C | 85 mm | 79% | 0.9 m/s | 2.2 |
| 2019 🌧️ | 13.9°C | 9.3°C | 4.7°C | 17.1°C | -0.1°C | 189 mm | 85% | 0.9 m/s | 2.3 |
| 2018 | 10.9°C | 6.4°C | 1.8°C | 26.7°C | -4.7°C | 69 mm | 79% | 1 m/s | 2.1 |
| 2017 🔥 | 17.5°C | 12.3°C | 7.1°C | 24.7°C | -0.5°C | 126 mm | 82% | 1 m/s | 2.5 |
| 2016 | 13.9°C | 9.2°C | 4.5°C | 25.1°C | -3.0°C | 161 mm | 79% | 1 m/s | 2.4 |
| 2015 | 12.2°C | 7.0°C | 1.9°C | 23.0°C | -5.4°C | 84 mm | 74% | 1 m/s | 2.7 |
| 2014 | 14.5°C | 10.1°C | 5.8°C | 24.6°C | -1.1°C | 92 mm | 83% | 1 m/s | 2.2 |
| 2013 | 14.4°C | 9.5°C | 4.5°C | 22.4°C | -5.1°C | 73 mm | 80% | 1 m/s | 2.6 |
| 2012 | 14.4°C | 9.9°C | 5.5°C | 20.6°C | -1.0°C | 93 mm | 83% | 0.9 m/s | 2.2 |
| 2011 | 13.8°C | 9.3°C | 4.9°C | 23.6°C | -3.7°C | 87 mm | 83% | 1 m/s | 2.3 |
| 2010 | 11.8°C | 7.2°C | 2.5°C | 19.2°C | -4.4°C | 109 mm | 82% | 1 m/s | 2.5 |
| 2009 | 10.3°C | 6.1°C | 2.0°C | 17.2°C | -3.8°C | 100 mm | 84% | 0.9 m/s | 2.2 |
| 2008 | 12.6°C | 7.7°C | 2.9°C | 22.4°C | -3.8°C | 113 mm | 80% | 0.9 m/s | 2.6 |
| 2007 | 15.7°C | 10.7°C | 5.6°C | 25.6°C | -4.3°C | 129 mm | 83% | 0.8 m/s | 2.4 |
| 2006 | 11.1°C | 7.1°C | 3.1°C | 19.9°C | -2.5°C | 129 mm | 85% | 1 m/s | 2 |
| 2005 | 12.8°C | 9.0°C | 5.1°C | 25.6°C | -2.9°C | 159 mm | 87% | 1 m/s | 2.2 |
| 2004 | 13.7°C | 8.6°C | 3.5°C | 22.0°C | -1.8°C | 48 mm | 83% | 0.9 m/s | 2.6 |
| 2003 | 10.9°C | 6.7°C | 2.5°C | 22.7°C | -3.2°C | 176 mm | 85% | 1 m/s | 2.2 |
| 2002 | 11.2°C | 6.4°C | 1.7°C | 26.0°C | -4.8°C | 105 mm | 80% | 0.9 m/s | 2.5 |
| 2001 | 14.1°C | 9.5°C | 4.8°C | 23.0°C | -3.0°C | 83 mm | 80% | 1 m/s | 2.4 |
| 2000 | 13.0°C | 8.0°C | 3.0°C | 22.0°C | -3.7°C | 32 mm | 82% | 0.9 m/s | 2.5 |
| 1999 | 12.1°C | 6.9°C | 1.7°C | 19.8°C | -4.4°C | 80 mm | 79% | 1 m/s | 2.5 |
| 1998 | 14.1°C | 9.1°C | 4.1°C | 21.4°C | -0.6°C | 68 mm | 78% | 1 m/s | 2.8 |
| 1997 | 12.3°C | 7.2°C | 2.2°C | 24.7°C | -5.8°C | 47 mm | 76% | 0.9 m/s | 2.8 |
| 1996 | 12.1°C | 7.3°C | 2.5°C | 21.6°C | -3.5°C | 98 mm | 79% | 1.1 m/s | 2.3 |
| 1995 | 14.4°C | 9.8°C | 5.3°C | 23.3°C | -3.9°C | 157 mm | 81% | 1.1 m/s | 2.2 |
| 1994 | 14.4°C | 9.0°C | 3.7°C | 22.2°C | -1.6°C | 19 mm | 75% | 0.8 m/s | 2.6 |
| 1993 | 10.7°C | 6.0°C | 1.3°C | 20.1°C | -4.5°C | 94 mm | 80% | 1 m/s | 2.2 |
| 1992 | 10.3°C | 5.5°C | 0.7°C | 19.5°C | -5.0°C | 61 mm | 81% | 0.9 m/s | 2.2 |
| 1991 | 13.5°C | 8.4°C | 3.4°C | 24.8°C | -3.9°C | 92 mm | 83% | 0.8 m/s | 2.4 |
| 1990 | 12.3°C | 7.8°C | 3.3°C | 23.0°C | -5.5°C | 120 mm | 85% | 1 m/s | 2.2 |
| 1989 | 13.5°C | 8.5°C | 3.4°C | 21.8°C | -2.3°C | 114 mm | 83% | 1 m/s | 2.4 |
| 1988 | 9.7°C | 5.4°C | 1.2°C | 24.1°C | -5.5°C | 114 mm | 84% | 1 m/s | 2 |
| 1987 | 11.6°C | 6.3°C | 1.1°C | 19.2°C | -4.6°C | 62 mm | 80% | 0.9 m/s | 2.5 |
| 1986 | 11.5°C | 6.5°C | 1.6°C | 19.1°C | -5.2°C | 75 mm | 84% | 0.9 m/s | 2.5 |
| 1985 | 12.7°C | 7.7°C | 2.8°C | 18.3°C | -5.1°C | 84 mm | 80% | 0.9 m/s | 2.5 |
| 1984 | 14.4°C | 9.2°C | 4.0°C | 21.9°C | -5.2°C | 46 mm | 78% | 0.8 m/s | 2.9 |
| 1983 | 12.4°C | 7.4°C | 2.5°C | 24.9°C | -4.8°C | 103 mm | 81% | 1 m/s | — |
| 1982 | 13.5°C | 8.2°C | 3.0°C | 20.1°C | -3.7°C | 37 mm | 82% | 0.9 m/s | — |
| 1981 ❄️ | 9.4°C | 4.7°C | 0.1°C | 16.4°C | -4.7°C | 113 mm | 84% | 0.8 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 13.2°C with lows near 3.5°C (mean 8.4°C), based on 45 years of NASA POWER data.
October averages 94 mm of rainfall in Salaberry-de-Valleyfield, a relatively wet time of year. The wettest on record was 189 mm in 2019.
The hottest October reached 30.9°C in 2023. The coldest dipped to -5.8°C in 1997.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 3.6°C. Daytime highs moved from 12.5°C to 16.3°C and overnight lows from 2.5°C to 5.7°C over the same span.
October is one of the warmer months of the year in Salaberry-de-Valleyfield and a relatively wet time of year, so plan for around 13.2°C daytime highs and 3.5°C at night.
Not quite — October is the 7th coolest month in Salaberry-de-Valleyfield, averaging 8.4°C.
For October in Salaberry-de-Valleyfield, pack warm layers and a jacket for chilly mornings, with typical highs of 13.2°C and lows of 3.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 81% — quite humid.
Average wind speed in October is 0.9 m/s. The windiest October on record averaged 1.1 m/s (1995).
The wettest October on record was 2019 with 189 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 Salaberry-de-Valleyfield 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.
