October is one of the warmer months of the year in Lethbridge, with average highs near 12.1°C and lows around 0.8°C (mean 6.5°C). It is about average for rainfall, averaging 31 mm of rainfall and 66% relative humidity across the period.
October is one of the warmer months of the year in Lethbridge. Across 45 years of records, the warmest October in Lethbridge was 2022 — when the month averaged 10.5°C — while the coldest was 2009 at 2.1°C. Typical October days reach 12.1°C with nights near 0.8°C. The long-term trend is warming, about 0.2°C per decade.
October is about average for rainfall in Lethbridge, averaging 31 mm of rainfall. The wettest October on record was 2011 with 77 mm, while the driest was 1987 at 7 mm.
Relative humidity in Lethbridge during October averages 66%. The most humid October was 2016 at 78%, and the least humid was 1987 at 54%.
October receives about 2.6 kWh/m²/day of solar energy in Lethbridge. The sunniest Octobers were 2007 and 2024 at 2.9 kWh/m²/day, and the cloudiest was 2012 at 2.
Average wind speed in Lethbridge during October is 2.8 m/s. The windiest Octobers were 1985 and 2017 at 3.5 m/s, while the calmest was 2002 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 6.6°C | 6.0°C | 6.1°C | 6.3°C | 7.7°C | +1.1°C |
| Avg High | 12.4°C | 11.5°C | 11.6°C | 11.9°C | 13.6°C | +1.2°C |
| Avg Low | 0.7°C | 0.5°C | 0.5°C | 0.7°C | 1.9°C | +1.2°C |
| Avg Rain | 25 mm | 35 mm | 29 mm | 38 mm | 27 mm | +1 mm |
October temperatures in Lethbridge have risen by about 2.9°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -23.3°C (1984) to a record high of 27.5°C (1992).
Rainfall in October is about average for rainfall, averaging 31 mm, with a wettest year of 77 mm.
A good time to visit Lethbridge
October is a good time to visit Lethbridge, with days averaging 12.1°C and nights around 0.8°C (mean 6.5°C, close to Lethbridge'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 | 12.9°C | 7.1°C | 1.3°C | 23.2°C | -4.9°C | 23 mm | 64% | 3 m/s | 2.8 |
| 2024 | 15.7°C | 9.3°C | 2.9°C | 23.5°C | -3.4°C | 12 mm | 61% | 2.9 m/s | 2.9 |
| 2023 | 12.2°C | 6.8°C | 1.4°C | 25.9°C | -10.5°C | 31 mm | 66% | 2.4 m/s | 2.3 |
| 2022 🔥 | 16.5°C | 10.5°C | 4.5°C | 24.8°C | -4.9°C | 29 mm | 63% | 2.5 m/s | 2.8 |
| 2021 | 13.8°C | 7.6°C | 1.4°C | 26.4°C | -8.9°C | 27 mm | 59% | 2.7 m/s | 2.7 |
| 2020 | 10.2°C | 5.1°C | -0.1°C | 24.5°C | -15.6°C | 37 mm | 69% | 3 m/s | 2.3 |
| 2019 | 8.3°C | 2.8°C | -2.8°C | 17.1°C | -11.2°C | 33 mm | 69% | 3.2 m/s | 2.7 |
| 2018 | 11.3°C | 5.5°C | -0.3°C | 20.7°C | -6.2°C | 34 mm | 70% | 2.7 m/s | 2.5 |
| 2017 | 11.3°C | 5.9°C | 0.5°C | 18.7°C | -7.4°C | 38 mm | 61% | 3.5 m/s | 2.3 |
| 2016 | 10.4°C | 5.3°C | 0.1°C | 18.6°C | -7.3°C | 46 mm | 78% | 2.3 m/s | 2.3 |
| 2015 | 15.0°C | 9.2°C | 3.4°C | 23.6°C | -3.4°C | 18 mm | 64% | 2.6 m/s | 2.7 |
| 2014 | 15.4°C | 9.6°C | 3.8°C | 22.0°C | -3.6°C | 24 mm | 68% | 2.8 m/s | 2.8 |
| 2013 | 11.1°C | 5.4°C | -0.4°C | 19.0°C | -10.1°C | 42 mm | 71% | 2.6 m/s | 2.6 |
| 2012 | 9.4°C | 4.2°C | -1.0°C | 24.6°C | -8.5°C | 57 mm | 72% | 2.7 m/s | 2 |
| 2011 🌧️ | 12.1°C | 6.8°C | 1.5°C | 22.8°C | -3.1°C | 77 mm | 70% | 2.8 m/s | 2.5 |
| 2010 | 14.6°C | 8.6°C | 2.7°C | 25.5°C | -3.5°C | 13 mm | 68% | 2.7 m/s | 2.8 |
| 2009 ❄️ | 6.8°C | 2.1°C | -2.5°C | 17.5°C | -13.2°C | 55 mm | 73% | 2.8 m/s | 2.1 |
| 2008 | 13.2°C | 7.3°C | 1.4°C | 26.8°C | -5.7°C | 9 mm | 58% | 2.8 m/s | 2.8 |
| 2007 | 13.1°C | 7.5°C | 1.9°C | 20.3°C | -4.1°C | 19 mm | 64% | 3.1 m/s | 2.9 |
| 2006 | 10.1°C | 5.0°C | -0.1°C | 22.0°C | -9.8°C | 37 mm | 72% | 2.6 m/s | 2.4 |
| 2005 | 12.6°C | 7.2°C | 1.8°C | 20.4°C | -3.0°C | 42 mm | 76% | 2.7 m/s | 2.5 |
| 2004 | 11.4°C | 5.9°C | 0.4°C | 22.8°C | -5.6°C | 42 mm | 71% | 2.6 m/s | 2.6 |
| 2003 | 15.1°C | 9.2°C | 3.3°C | 25.0°C | -13.3°C | 29 mm | 59% | 3.3 m/s | 2.8 |
| 2002 | 8.5°C | 3.0°C | -2.6°C | 18.1°C | -14.1°C | 26 mm | 69% | 2.2 m/s | 2.5 |
| 2001 | 12.3°C | 6.4°C | 0.4°C | 25.4°C | -4.0°C | 19 mm | 59% | 3.2 m/s | 2.7 |
| 2000 | 13.1°C | 6.9°C | 0.6°C | 24.0°C | -6.6°C | 15 mm | 65% | 2.3 m/s | 2.8 |
| 1999 | 12.7°C | 7.0°C | 1.4°C | 21.1°C | -6.5°C | 44 mm | 63% | 3 m/s | 2.7 |
| 1998 | 14.6°C | 8.2°C | 1.9°C | 22.7°C | -3.4°C | 9 mm | 60% | 2.5 m/s | 2.6 |
| 1997 | 10.9°C | 5.9°C | 1.0°C | 22.7°C | -4.5°C | 28 mm | 70% | 3 m/s | 2.5 |
| 1996 | 10.4°C | 5.0°C | -0.4°C | 23.2°C | -10.6°C | 25 mm | 68% | 2.9 m/s | 2.7 |
| 1995 | 9.6°C | 4.7°C | -0.2°C | 15.6°C | -7.4°C | 46 mm | 71% | 3.1 m/s | 2.4 |
| 1994 | 11.0°C | 5.9°C | 0.8°C | 20.8°C | -3.5°C | 62 mm | 68% | 3.2 m/s | 2.5 |
| 1993 | 12.3°C | 6.6°C | 0.8°C | 22.4°C | -7.1°C | 26 mm | 70% | 2.5 m/s | 2.8 |
| 1992 | 12.0°C | 6.5°C | 0.9°C | 27.5°C | -6.9°C | 38 mm | 68% | 2.3 m/s | 2.2 |
| 1991 | 11.0°C | 4.8°C | -1.4°C | 25.8°C | -16.5°C | 33 mm | 59% | 2.9 m/s | 2.6 |
| 1990 | 10.6°C | 5.2°C | -0.2°C | 22.8°C | -5.2°C | 34 mm | 64% | 3.4 m/s | 2.7 |
| 1989 | 12.2°C | 6.5°C | 0.8°C | 20.2°C | -5.9°C | 19 mm | 67% | 2.7 m/s | 2.8 |
| 1988 | 15.0°C | 8.9°C | 2.7°C | 26.0°C | -9.9°C | 25 mm | 61% | 2.5 m/s | 2.7 |
| 1987 | 14.6°C | 8.0°C | 1.3°C | 25.9°C | -4.9°C | 7 mm | 54% | 2.4 m/s | 2.8 |
| 1986 | 15.1°C | 8.5°C | 1.9°C | 21.5°C | -7.5°C | 42 mm | 66% | 2.4 m/s | 2.8 |
| 1985 | 9.6°C | 4.4°C | -0.8°C | 17.6°C | -14.5°C | 44 mm | 72% | 3.5 m/s | 2.4 |
| 1984 | 8.6°C | 3.4°C | -1.8°C | 26.0°C | -23.3°C | 41 mm | 68% | 2.7 m/s | 2.4 |
| 1983 | 13.5°C | 7.3°C | 1.1°C | 19.3°C | -3.2°C | 10 mm | 65% | 2.5 m/s | — |
| 1982 | 12.5°C | 6.7°C | 0.8°C | 23.1°C | -5.2°C | 18 mm | 70% | 2.8 m/s | — |
| 1981 | 10.6°C | 5.3°C | -0.1°C | 18.7°C | -5.6°C | 21 mm | 70% | 2.7 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 12.1°C with lows near 0.8°C (mean 6.5°C), based on 45 years of NASA POWER data.
October averages 31 mm of rainfall in Lethbridge, about average for rainfall. The wettest on record was 77 mm in 2011.
The hottest October reached 27.5°C in 1992. The coldest dipped to -23.3°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 2.9°C. Daytime highs moved from 11°C to 14.2°C and overnight lows from -0.2°C to 2.3°C over the same span.
October is one of the warmer months of the year in Lethbridge and about average for rainfall, so plan for around 12.1°C daytime highs and 0.8°C at night.
Not quite — October is the 7th coolest month in Lethbridge, averaging 6.5°C.
For October in Lethbridge, pack warm layers and a jacket for chilly mornings, with typical highs of 12.1°C and lows of 0.8°C.
Relative humidity in October averages 66% — moderately humid.
Average wind speed in October is 2.8 m/s. The windiest October on record averaged 3.5 m/s (1985).
The wettest October on record was 2011 with 77 mm. On average, October sees 31 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 Lethbridge 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.
