January is one of the cooler months of the year in Lethbridge, with average highs near -2.2°C and lows around -10.8°C (mean -6.5°C). It is one of the drier months, averaging 26 mm of rainfall and 84% relative humidity across the period.
January is one of the cooler months of the year in Lethbridge. Across 45 years of records, the warmest January in Lethbridge was 2006 — when the month averaged -1°C — while the coldest was 1982 at -15.4°C. Typical January days reach -2.2°C with nights near -10.8°C. The long-term trend is warming, about 0.4°C per decade.
January is one of the drier months in Lethbridge, averaging 26 mm of rainfall. The wettest January on record was 1982 with 64 mm, while the driest was 2021 at 7 mm.
Relative humidity in Lethbridge during January averages 84%. The most humid January was 1993 at 93%, and the least humid was 2012 at 77%.
January receives about 1.3 kWh/m²/day of solar energy in Lethbridge. The sunniest January was 2009 at 1.6 kWh/m²/day, and the cloudiest was 1984 at 1.
Average wind speed in Lethbridge during January is 3.5 m/s. The windiest January was 2012 at 4.6 m/s, while the calmest was 1995 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -6.4°C | -8.2°C | -6.0°C | -6.2°C | -5.2°C | +1.2°C |
| Avg High | -2.1°C | -3.7°C | -1.6°C | -2.0°C | -1.1°C | +1°C |
| Avg Low | -10.8°C | -12.5°C | -10.4°C | -10.3°C | -9.3°C | +1.5°C |
| Avg Rain | 28 mm | 24 mm | 29 mm | 25 mm | 19 mm | -9 mm |
January temperatures in Lethbridge have risen by about 2.4°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -35.8°C (2005) to a record high of 14.6°C (2024).
Rainfall in January is one of the drier months, averaging 26 mm, with a wettest year of 64 mm.
A quieter season to visit Lethbridge
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Lethbridge. That said, January — with days averaging -2.2°C and nights around -10.8°C (mean -6.5°C) and low rainfall (26 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | -1.6°C | -5.3°C | -9.1°C | 4.4°C | -20.7°C | 19 mm | 77% | 3.8 m/s | 1.2 |
| 2024 | -2.7°C | -6.8°C | -11.0°C | 14.6°C | -35.3°C | 24 mm | 80% | 3 m/s | 1.1 |
| 2023 | 0.5°C | -3.5°C | -7.4°C | 6.5°C | -18.2°C | 13 mm | 80% | 3.4 m/s | 1.4 |
| 2022 | -1.1°C | -5.9°C | -10.6°C | 5.6°C | -31.4°C | 18 mm | 80% | 4.3 m/s | 1.2 |
| 2021 | 0.5°C | -3.7°C | -7.8°C | 4.7°C | -15.2°C | 7 mm | 82% | 3.1 m/s | 1.3 |
| 2020 | -2.1°C | -6.2°C | -10.2°C | 6.7°C | -27.3°C | 35 mm | 85% | 3.1 m/s | 1.3 |
| 2019 | 1.5°C | -2.8°C | -7.2°C | 5.8°C | -14.9°C | 17 mm | 78% | 3.7 m/s | 1.2 |
| 2018 | -1.1°C | -5.4°C | -9.6°C | 4.1°C | -27.3°C | 17 mm | 87% | 3.3 m/s | 1.5 |
| 2017 | -5.9°C | -10.4°C | -15.0°C | 1.7°C | -30.8°C | 21 mm | 90% | 3.2 m/s | 1.5 |
| 2016 | -1.2°C | -4.9°C | -8.6°C | 5.8°C | -18.0°C | 26 mm | 85% | 2.9 m/s | 1.4 |
| 2015 | -1.7°C | -5.9°C | -10.1°C | 7.6°C | -25.9°C | 30 mm | 87% | 3.8 m/s | 1.4 |
| 2014 | -0.6°C | -5.1°C | -9.5°C | 4.6°C | -27.2°C | 33 mm | 82% | 4 m/s | 1.3 |
| 2013 | -2.8°C | -6.9°C | -11.0°C | 3.2°C | -20.3°C | 18 mm | 87% | 3.9 m/s | 1.2 |
| 2012 | -1.5°C | -5.3°C | -9.1°C | 7.1°C | -28.3°C | 25 mm | 77% | 4.6 m/s | 1.2 |
| 2011 | -4.6°C | -9.0°C | -13.4°C | 2.3°C | -27.9°C | 42 mm | 90% | 3.7 m/s | 1.5 |
| 2010 | -2.2°C | -5.9°C | -9.6°C | 4.6°C | -25.3°C | 23 mm | 89% | 2.6 m/s | 1.5 |
| 2009 | -2.8°C | -7.1°C | -11.5°C | 4.6°C | -30.0°C | 22 mm | 82% | 4 m/s | 1.6 |
| 2008 | -3.4°C | -8.3°C | -13.2°C | 2.7°C | -30.8°C | 27 mm | 84% | 3.6 m/s | 1.4 |
| 2007 | -1.7°C | -6.2°C | -10.8°C | 4.9°C | -24.4°C | 30 mm | 81% | 4.4 m/s | 1.1 |
| 2006 🔥 | 2.3°C | -1.0°C | -4.4°C | 6.5°C | -10.4°C | 29 mm | 83% | 3.8 m/s | 1.4 |
| 2005 | -3.8°C | -8.2°C | -12.7°C | 8.3°C | -35.8°C | 34 mm | 88% | 3 m/s | 1.4 |
| 2004 | -4.5°C | -9.0°C | -13.6°C | 4.3°C | -32.1°C | 50 mm | 84% | 3.2 m/s | 1.1 |
| 2003 | -0.1°C | -4.7°C | -9.2°C | 6.2°C | -21.9°C | 21 mm | 82% | 3.3 m/s | 1.1 |
| 2002 | -0.4°C | -4.3°C | -8.3°C | 7.7°C | -20.8°C | 30 mm | 77% | 3.9 m/s | 1.4 |
| 2001 | 0.4°C | -3.9°C | -8.1°C | 3.7°C | -12.2°C | 20 mm | 82% | 3.6 m/s | 1.4 |
| 2000 | -1.8°C | -6.8°C | -11.8°C | 2.5°C | -19.8°C | 27 mm | 85% | 3.2 m/s | 1.4 |
| 1999 | -1.5°C | -6.2°C | -10.8°C | 5.4°C | -21.6°C | 23 mm | 85% | 3.4 m/s | 1.3 |
| 1998 | -4.6°C | -8.6°C | -12.7°C | 4.8°C | -28.8°C | 23 mm | 88% | 2.6 m/s | 1.4 |
| 1997 | -5.4°C | -10.1°C | -14.9°C | 3.5°C | -31.1°C | 25 mm | 87% | 3.1 m/s | 1.3 |
| 1996 | -9.3°C | -14.1°C | -18.8°C | 4.0°C | -34.8°C | 35 mm | 89% | 3 m/s | 1.3 |
| 1995 | -1.1°C | -5.4°C | -9.8°C | 3.3°C | -19.0°C | 12 mm | 85% | 2.3 m/s | 1.5 |
| 1994 | -1.6°C | -6.6°C | -11.5°C | 4.1°C | -22.9°C | 28 mm | 90% | 2.6 m/s | 1.1 |
| 1993 | -7.0°C | -11.7°C | -16.3°C | 3.9°C | -28.8°C | 17 mm | 93% | 3 m/s | 1.2 |
| 1992 | 0.6°C | -3.1°C | -6.7°C | 7.9°C | -16.4°C | 18 mm | 81% | 4.3 m/s | 1.2 |
| 1991 | -6.0°C | -10.4°C | -14.7°C | 2.1°C | -30.3°C | 25 mm | 87% | 3.4 m/s | 1.1 |
| 1990 | -1.6°C | -5.5°C | -9.3°C | 4.3°C | -31.0°C | 37 mm | 81% | 4.1 m/s | 1.2 |
| 1989 | -2.8°C | -7.5°C | -12.1°C | 6.3°C | -29.9°C | 30 mm | 84% | 4.5 m/s | 1.2 |
| 1988 | -3.0°C | -7.3°C | -11.6°C | 6.7°C | -23.4°C | 16 mm | 79% | 3.5 m/s | 1.4 |
| 1987 | 0.3°C | -4.1°C | -8.5°C | 4.4°C | -18.6°C | 10 mm | 78% | 4.2 m/s | 1.5 |
| 1986 | 1.6°C | -1.9°C | -5.5°C | 7.1°C | -15.5°C | 20 mm | 82% | 3.7 m/s | 1.3 |
| 1985 | -5.3°C | -10.1°C | -14.9°C | 0.7°C | -32.0°C | 12 mm | 92% | 3.4 m/s | 1.3 |
| 1984 | -1.5°C | -5.1°C | -8.6°C | 6.0°C | -22.5°C | 36 mm | 84% | 4.3 m/s | 1 |
| 1983 | -0.7°C | -5.0°C | -9.3°C | 3.2°C | -20.3°C | 43 mm | 88% | 3.2 m/s | — |
| 1982 ❄️ 🌧️ | -10.1°C | -15.4°C | -20.7°C | 1.4°C | -34.7°C | 64 mm | 92% | 2.9 m/s | — |
| 1981 | 2.7°C | -1.5°C | -5.7°C | 9.9°C | -12.6°C | 21 mm | 81% | 2.7 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around -2.2°C with lows near -10.8°C (mean -6.5°C), based on 45 years of NASA POWER data.
January averages 26 mm of rainfall in Lethbridge, one of the drier months. The wettest on record was 64 mm in 1982.
The hottest January reached 14.6°C in 2024. The coldest dipped to -35.8°C in 2005.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 2.4°C. Daytime highs moved from -3°C to -0.9°C and overnight lows from -11.8°C to -9.2°C over the same span.
January is one of the cooler months of the year in Lethbridge and one of the drier months, so plan for around -2.2°C daytime highs and -10.8°C at night.
Not quite — January is the 2nd coolest month in Lethbridge, averaging -6.5°C.
For January in Lethbridge, pack warm layers and a jacket for chilly mornings, with typical highs of -2.2°C and lows of -10.8°C.
Relative humidity in January averages 84% — quite humid.
Average wind speed in January is 3.5 m/s. The windiest January on record averaged 4.6 m/s (2012).
The wettest January on record was 1982 with 64 mm. On average, January sees 26 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 January, 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 January specifically, along with year-by-year records and how the month has changed over the decades.
