January is one of the cooler months of the year in Thompson, with average highs near -20.9°C and lows around -29.8°C (mean -25.3°C). It is one of the drier months, averaging 24 mm of rainfall and 99% relative humidity across the period.
January is one of the cooler months of the year in Thompson. Across 45 years of records, the warmest January in Thompson was 2021 — when the month averaged -19.2°C — while the coldest was 1982 at -35.7°C. Typical January days reach -20.9°C with nights near -29.8°C. The long-term trend is warming, about 0.9°C per decade.
January is one of the drier months in Thompson, averaging 24 mm of rainfall. The wettest January on record was 2021 with 69 mm, while the driest was 2002 at 9 mm.
Relative humidity in Thompson during January averages 99%. The most humid Januarys were 2016, 2017 and 2018, among others at 100%, and the least humid was 1982 at 99%.
January receives about 0.8 kWh/m²/day of solar energy in Thompson. The sunniest January was 2022 at 1 kWh/m²/day, and the cloudiest were 2010, 2017 and 2024, among others at 0.7.
Average wind speed in Thompson during January is 0.5 m/s. The windiest Januarys were 2018, 2022 and 2025, among others at 0.6 m/s, while the calmest were 2021, 2023 and 2024, among others at 0.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -26.4°C | -27.2°C | -24.7°C | -24.7°C | -22.6°C | +3.8°C |
| Avg High | -21.6°C | -22.7°C | -20.2°C | -20.4°C | -18.5°C | +3.1°C |
| Avg Low | -31.3°C | -31.8°C | -29.1°C | -29.1°C | -26.7°C | +4.6°C |
| Avg Rain | 25 mm | 19 mm | 25 mm | 25 mm | 31 mm | +7 mm |
January temperatures in Thompson have risen by about 4.2°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -51.1°C (2002) to a record high of 0.2°C (1989).
Rainfall in January is one of the drier months, averaging 24 mm, with a wettest year of 69 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.8°C per decade while lows rose 1.1°C per decade, narrowing the gap between day and night.
A quieter season to visit Thompson
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Thompson. That said, January — with days averaging -20.9°C and nights around -29.8°C (mean -25.3°C) and low rainfall (24 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 | -19.4°C | -24.2°C | -29.0°C | -1.6°C | -39.9°C | 21 mm | 99% | 0.6 m/s | 0.9 |
| 2024 | -18.1°C | -21.9°C | -25.6°C | -0.2°C | -37.9°C | 26 mm | 99% | 0.5 m/s | 0.7 |
| 2023 | -17.5°C | -21.3°C | -25.0°C | -9.1°C | -41.5°C | 21 mm | 99% | 0.5 m/s | 0.8 |
| 2022 | -23.6°C | -28.5°C | -33.4°C | -8.9°C | -40.9°C | 25 mm | 99% | 0.6 m/s | 1 |
| 2021 🔥 🌧️ | -15.8°C | -19.2°C | -22.6°C | -4.6°C | -36.7°C | 69 mm | 99% | 0.5 m/s | 0.8 |
| 2020 | -16.7°C | -20.6°C | -24.4°C | -3.2°C | -38.2°C | 25 mm | 99% | 0.5 m/s | 0.8 |
| 2019 | -22.7°C | -28.3°C | -33.9°C | -5.7°C | -46.2°C | 27 mm | 99% | 0.5 m/s | 0.9 |
| 2018 | -21.8°C | -26.2°C | -30.5°C | -12.8°C | -41.1°C | 44 mm | 100% | 0.6 m/s | 0.9 |
| 2017 | -16.2°C | -20.5°C | -24.8°C | -2.0°C | -43.7°C | 20 mm | 100% | 0.5 m/s | 0.7 |
| 2016 | -17.8°C | -21.9°C | -25.9°C | -7.4°C | -38.2°C | 14 mm | 100% | 0.5 m/s | 0.8 |
| 2015 | -20.7°C | -25.5°C | -30.3°C | -4.4°C | -42.6°C | 19 mm | 99% | 0.5 m/s | 0.9 |
| 2014 | -23.0°C | -27.3°C | -31.6°C | -13.9°C | -45.3°C | 33 mm | 99% | 0.6 m/s | 0.9 |
| 2013 | -22.8°C | -27.3°C | -31.8°C | -8.7°C | -41.2°C | 16 mm | 99% | 0.5 m/s | 0.9 |
| 2012 | -19.0°C | -22.8°C | -26.6°C | -5.9°C | -41.5°C | 33 mm | 100% | 0.5 m/s | 0.8 |
| 2011 | -23.1°C | -26.8°C | -30.6°C | -14.5°C | -41.9°C | 13 mm | 99% | 0.5 m/s | 0.9 |
| 2010 | -17.2°C | -20.9°C | -24.7°C | -7.8°C | -38.3°C | 33 mm | 99% | 0.6 m/s | 0.7 |
| 2009 | -21.4°C | -25.5°C | -29.7°C | -4.6°C | -41.6°C | 21 mm | 99% | 0.5 m/s | 0.9 |
| 2008 | -20.7°C | -24.8°C | -28.9°C | -10.2°C | -46.4°C | 29 mm | 99% | 0.5 m/s | 0.8 |
| 2007 | -19.5°C | -23.5°C | -27.4°C | -3.3°C | -43.6°C | 23 mm | 99% | 0.5 m/s | 0.8 |
| 2006 | -15.3°C | -19.4°C | -23.5°C | -7.4°C | -39.3°C | 39 mm | 99% | 0.5 m/s | 0.7 |
| 2005 | -22.0°C | -27.4°C | -32.7°C | -10.6°C | -44.8°C | 47 mm | 99% | 0.5 m/s | 0.9 |
| 2004 | -25.1°C | -29.7°C | -34.2°C | -18.1°C | -44.0°C | 20 mm | 99% | 0.5 m/s | 0.9 |
| 2003 | -20.3°C | -24.4°C | -28.6°C | 0.0°C | -42.7°C | 14 mm | 99% | 0.6 m/s | 0.9 |
| 2002 | -21.9°C | -26.6°C | -31.4°C | -3.9°C | -51.1°C | 9 mm | 99% | 0.5 m/s | 0.8 |
| 2001 | -14.7°C | -19.3°C | -23.8°C | -2.7°C | -34.7°C | 33 mm | 100% | 0.5 m/s | 0.8 |
| 2000 | -21.3°C | -26.2°C | -31.0°C | -4.2°C | -41.8°C | 13 mm | 99% | 0.5 m/s | 0.9 |
| 1999 | -21.8°C | -25.9°C | -30.0°C | -5.0°C | -45.7°C | 12 mm | 99% | 0.5 m/s | 0.9 |
| 1998 | -23.0°C | -26.4°C | -29.9°C | -14.6°C | -43.6°C | 28 mm | 99% | 0.5 m/s | 0.9 |
| 1997 | -23.4°C | -28.3°C | -33.2°C | -9.8°C | -42.4°C | 24 mm | 99% | 0.5 m/s | 0.8 |
| 1996 | -26.9°C | -31.6°C | -36.3°C | -14.0°C | -49.4°C | 10 mm | 99% | 0.5 m/s | 0.9 |
| 1995 | -18.8°C | -22.5°C | -26.1°C | -3.4°C | -44.2°C | 21 mm | 99% | 0.5 m/s | 0.9 |
| 1994 | -28.4°C | -33.6°C | -38.7°C | -16.6°C | -45.6°C | 13 mm | 99% | 0.5 m/s | 0.9 |
| 1993 | -19.0°C | -23.8°C | -28.7°C | 0.1°C | -44.5°C | 10 mm | 99% | 0.6 m/s | 0.8 |
| 1992 | -18.8°C | -23.1°C | -27.5°C | -7.7°C | -43.0°C | 23 mm | 100% | 0.5 m/s | 0.8 |
| 1991 | -25.1°C | -30.8°C | -36.4°C | -13.9°C | -46.1°C | 22 mm | 99% | 0.5 m/s | 0.9 |
| 1990 | -21.9°C | -26.5°C | -31.2°C | -13.7°C | -45.5°C | 25 mm | 99% | 0.5 m/s | 0.8 |
| 1989 | -21.3°C | -26.8°C | -32.3°C | 0.2°C | -46.3°C | 20 mm | 99% | 0.6 m/s | 0.8 |
| 1988 | -24.2°C | -28.8°C | -33.4°C | -14.8°C | -43.2°C | 26 mm | 99% | 0.5 m/s | 0.8 |
| 1987 | -17.8°C | -22.3°C | -26.9°C | -5.6°C | -44.0°C | 25 mm | 99% | 0.5 m/s | 0.8 |
| 1986 | -19.3°C | -24.0°C | -28.7°C | -5.6°C | -44.0°C | 38 mm | 99% | 0.5 m/s | 0.9 |
| 1985 | -20.5°C | -25.1°C | -29.6°C | -0.7°C | -43.4°C | 23 mm | 99% | 0.6 m/s | 0.8 |
| 1984 | -23.5°C | -28.5°C | -33.5°C | -11.8°C | -43.1°C | 35 mm | 99% | 0.6 m/s | 0.8 |
| 1983 | -19.8°C | -24.1°C | -28.5°C | -7.9°C | -39.3°C | 28 mm | 99% | 0.5 m/s | — |
| 1982 ❄️ | -30.6°C | -35.7°C | -40.8°C | -14.4°C | -49.1°C | 19 mm | 99% | 0.6 m/s | — |
| 1981 | -17.5°C | -22.5°C | -27.6°C | -4.4°C | -45.1°C | 10 mm | 99% | 0.5 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around -20.9°C with lows near -29.8°C (mean -25.3°C), based on 45 years of NASA POWER data.
January averages 24 mm of rainfall in Thompson, one of the drier months. The wettest on record was 69 mm in 2021.
The hottest January reached 0.2°C in 1989. The coldest dipped to -51.1°C in 2002.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 4.2°C. Daytime highs moved from -22.4°C to -18.9°C and overnight lows from -32°C to -27.1°C over the same span.
January is one of the cooler months of the year in Thompson and one of the drier months, so plan for around -20.9°C daytime highs and -29.8°C at night.
Yes — January is the coldest month of the year in Thompson, averaging -25.3°C.
For January in Thompson, pack warm layers and a jacket for chilly mornings, with typical highs of -20.9°C and lows of -29.8°C.
Relative humidity in January averages 99% — quite humid.
Average wind speed in January is 0.5 m/s. The windiest January on record averaged 0.6 m/s (1982).
The wettest January on record was 2021 with 69 mm. On average, January sees 24 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 Thompson 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.
