January is one of the cooler months of the year in Fort St. John, with average highs near -9.8°C and lows around -17.6°C (mean -13.7°C). It is about average for rainfall, averaging 45 mm of rainfall and 98% relative humidity across the period.
January is one of the cooler months of the year in Fort St. John. Across 45 years of records, the warmest January in Fort St. John was 2001 — when the month averaged -6.4°C — while the coldest was 1982 at -26°C. Typical January days reach -9.8°C with nights near -17.6°C. The long-term trend is warming, about 0.6°C per decade.
January is about average for rainfall in Fort St. John, averaging 45 mm of rainfall. The wettest January on record was 1982 with 101 mm, while the driest was 1993 at 19 mm.
Relative humidity in Fort St. John during January averages 98%. The most humid January was 2023 at 99%, and the least humid was 2012 at 95%.
January receives about 0.7 kWh/m²/day of solar energy in Fort St. John. The sunniest Januarys were 1995 and 2007 at 0.8 kWh/m²/day, and the cloudiest were 2019, 2022 and 2023, among others at 0.6.
Average wind speed in Fort St. John during January is 0.8 m/s. The windiest Januarys were 2012, 2014 and 2025, among others at 1 m/s, while the calmest was 1995 at 0.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -13.2°C | -16.7°C | -13.3°C | -12.3°C | -12.6°C | +0.6°C |
| Avg High | -9.2°C | -12.7°C | -9.2°C | -8.7°C | -9.0°C | +0.2°C |
| Avg Low | -17.2°C | -20.7°C | -17.4°C | -16.0°C | -16.2°C | +1°C |
| Avg Rain | 47 mm | 42 mm | 45 mm | 46 mm | 47 mm | 0 mm |
January temperatures in Fort St. John have risen by about 1.9°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -48.7°C (1990) to a record high of 4.7°C (2003).
Rainfall in January is about average for rainfall, averaging 45 mm, with a wettest year of 101 mm.
A quieter season to visit Fort St. John
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Fort St. John. That said, January — with days averaging -9.8°C and nights around -17.6°C (mean -13.7°C) and moderate rainfall (45 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 | -7.1°C | -10.6°C | -14.1°C | 0.3°C | -34.5°C | 38 mm | 98% | 1 m/s | 0.7 |
| 2024 | -12.3°C | -15.6°C | -18.8°C | 3.4°C | -39.2°C | 41 mm | 96% | 0.7 m/s | 0.7 |
| 2023 | -6.2°C | -9.4°C | -12.5°C | 0.3°C | -28.0°C | 40 mm | 99% | 0.8 m/s | 0.6 |
| 2022 | -9.2°C | -13.5°C | -17.8°C | 0.7°C | -38.9°C | 75 mm | 98% | 0.9 m/s | 0.6 |
| 2021 | -7.1°C | -10.3°C | -13.5°C | 0.5°C | -27.0°C | 42 mm | 99% | 0.9 m/s | 0.7 |
| 2020 | -12.2°C | -16.3°C | -20.5°C | 0.2°C | -41.6°C | 49 mm | 98% | 0.8 m/s | 0.7 |
| 2019 | -7.5°C | -11.4°C | -15.4°C | 0.4°C | -30.9°C | 52 mm | 99% | 0.9 m/s | 0.6 |
| 2018 | -11.1°C | -14.6°C | -18.0°C | 0.3°C | -36.5°C | 45 mm | 99% | 0.7 m/s | 0.6 |
| 2017 | -8.1°C | -11.2°C | -14.3°C | 0.9°C | -31.4°C | 36 mm | 98% | 0.9 m/s | 0.6 |
| 2016 | -9.2°C | -12.6°C | -16.0°C | 1.0°C | -25.3°C | 25 mm | 98% | 0.7 m/s | 0.7 |
| 2015 | -7.9°C | -11.4°C | -14.8°C | 0.5°C | -33.9°C | 65 mm | 98% | 0.9 m/s | 0.6 |
| 2014 | -5.4°C | -9.7°C | -14.1°C | 0.4°C | -34.8°C | 31 mm | 99% | 1 m/s | 0.7 |
| 2013 | -9.0°C | -13.5°C | -17.9°C | 0.4°C | -33.7°C | 37 mm | 99% | 0.8 m/s | 0.6 |
| 2012 | -7.5°C | -11.0°C | -14.5°C | 1.6°C | -36.9°C | 57 mm | 95% | 1 m/s | 0.6 |
| 2011 | -10.8°C | -14.5°C | -18.1°C | 0.4°C | -32.5°C | 77 mm | 99% | 0.9 m/s | 0.6 |
| 2010 | -10.5°C | -13.6°C | -16.7°C | 0.4°C | -29.3°C | 40 mm | 99% | 0.7 m/s | 0.6 |
| 2009 | -10.3°C | -15.2°C | -20.0°C | 0.5°C | -37.6°C | 55 mm | 99% | 1 m/s | 0.7 |
| 2008 | -10.8°C | -15.1°C | -19.4°C | -0.1°C | -44.6°C | 36 mm | 99% | 0.8 m/s | 0.7 |
| 2007 | -5.7°C | -9.5°C | -13.3°C | 0.5°C | -36.2°C | 50 mm | 99% | 1 m/s | 0.8 |
| 2006 | -5.1°C | -9.0°C | -12.9°C | 2.6°C | -21.6°C | 38 mm | 97% | 0.8 m/s | 0.6 |
| 2005 | -12.7°C | -17.4°C | -22.2°C | 2.5°C | -42.7°C | 55 mm | 98% | 0.8 m/s | 0.6 |
| 2004 | -13.8°C | -18.2°C | -22.6°C | 0.4°C | -46.7°C | 57 mm | 99% | 0.8 m/s | 0.7 |
| 2003 | -8.5°C | -11.4°C | -14.3°C | 4.7°C | -30.6°C | 83 mm | 96% | 0.8 m/s | 0.6 |
| 2002 | -8.8°C | -13.2°C | -17.6°C | 0.7°C | -40.6°C | 35 mm | 98% | 0.8 m/s | 0.7 |
| 2001 🔥 | -2.5°C | -6.4°C | -10.4°C | 0.7°C | -21.2°C | 21 mm | 97% | 0.9 m/s | 0.7 |
| 2000 | -13.5°C | -17.5°C | -21.6°C | -0.1°C | -34.4°C | 20 mm | 99% | 0.8 m/s | 0.7 |
| 1999 | -12.9°C | -17.2°C | -21.4°C | 0.3°C | -33.2°C | 52 mm | 99% | 0.8 m/s | 0.7 |
| 1998 | -16.1°C | -19.3°C | -22.6°C | 0.2°C | -36.7°C | 30 mm | 97% | 0.7 m/s | 0.7 |
| 1997 | -14.1°C | -18.5°C | -22.8°C | 0.5°C | -40.6°C | 48 mm | 99% | 0.8 m/s | 0.7 |
| 1996 | -18.5°C | -23.4°C | -28.3°C | 0.4°C | -44.4°C | 49 mm | 99% | 0.8 m/s | 0.7 |
| 1995 | -10.9°C | -14.1°C | -17.4°C | 0.4°C | -28.6°C | 21 mm | 98% | 0.6 m/s | 0.8 |
| 1994 | -15.1°C | -18.7°C | -22.3°C | -2.5°C | -37.1°C | 89 mm | 99% | 0.7 m/s | 0.7 |
| 1993 | -12.3°C | -16.7°C | -21.2°C | 1.5°C | -31.4°C | 19 mm | 99% | 0.8 m/s | 0.7 |
| 1992 | -5.2°C | -8.8°C | -12.3°C | 0.4°C | -24.1°C | 49 mm | 99% | 0.7 m/s | 0.6 |
| 1991 | -11.2°C | -15.7°C | -20.1°C | 0.3°C | -37.5°C | 19 mm | 99% | 0.9 m/s | 0.6 |
| 1990 | -10.7°C | -14.7°C | -18.7°C | 0.1°C | -48.7°C | 46 mm | 98% | 0.8 m/s | 0.6 |
| 1989 | -8.5°C | -12.8°C | -17.0°C | 0.4°C | -36.4°C | 39 mm | 99% | 1 m/s | 0.7 |
| 1988 | -12.4°C | -16.4°C | -20.4°C | 0.3°C | -35.4°C | 58 mm | 99% | 0.8 m/s | 0.7 |
| 1987 | -6.0°C | -10.1°C | -14.2°C | 0.4°C | -25.2°C | 40 mm | 99% | 0.8 m/s | 0.7 |
| 1986 | -6.8°C | -10.4°C | -13.9°C | 0.4°C | -26.3°C | 45 mm | 98% | 0.7 m/s | 0.6 |
| 1985 | -7.1°C | -10.9°C | -14.7°C | 0.3°C | -30.5°C | 33 mm | 99% | 0.9 m/s | 0.7 |
| 1984 | -7.5°C | -11.5°C | -15.5°C | 0.6°C | -30.6°C | 52 mm | 98% | 1 m/s | 0.6 |
| 1983 | -8.8°C | -13.1°C | -17.5°C | 0.2°C | -38.6°C | 39 mm | 98% | 0.7 m/s | — |
| 1982 ❄️ 🌧️ | -21.6°C | -26.0°C | -30.4°C | 0.0°C | -41.0°C | 101 mm | 99% | 0.8 m/s | — |
| 1981 | -3.9°C | -7.3°C | -10.8°C | 0.7°C | -19.0°C | 20 mm | 97% | 0.7 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around -9.8°C with lows near -17.6°C (mean -13.7°C), based on 45 years of NASA POWER data.
January averages 45 mm of rainfall in Fort St. John, about average for rainfall. The wettest on record was 101 mm in 1982.
The hottest January reached 4.7°C in 2003. The coldest dipped to -48.7°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 1.9°C. Daytime highs moved from -9.8°C to -8.4°C and overnight lows from -17.8°C to -15.3°C over the same span.
January is one of the cooler months of the year in Fort St. John and about average for rainfall, so plan for around -9.8°C daytime highs and -17.6°C at night.
Yes — January is the coldest month of the year in Fort St. John, averaging -13.7°C.
For January in Fort St. John, pack warm layers and a jacket for chilly mornings, with typical highs of -9.8°C and lows of -17.6°C.
Relative humidity in January averages 98% — quite humid.
Average wind speed in January is 0.8 m/s. The windiest January on record averaged 1 m/s (1984).
The wettest January on record was 1982 with 101 mm. On average, January sees 45 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 Fort St. John 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.
