January is one of the cooler months of the year in Chilliwack, with average highs near 1.3°C and lows around -4.3°C (mean -1.5°C). It is a relatively wet time of year, averaging 247 mm of rainfall and 95% relative humidity across the period.
January is one of the cooler months of the year in Chilliwack. Across 45 years of records, the warmest January in Chilliwack was 1981 — when the month averaged 2.1°C — while the coldest was 1993 at -6.6°C. Typical January days reach 1.3°C with nights near -4.3°C. The long-term January temperature trend is broadly flat.
January is a relatively wet time of year in Chilliwack, averaging 247 mm of rainfall. The wettest January on record was 2020 with 463 mm, while the driest was 1985 at 34 mm.
Relative humidity in Chilliwack during January averages 95%. The most humid January was 2020 at 99%, and the least humid was 1985 at 89%.
January receives about 1.1 kWh/m²/day of solar energy in Chilliwack. The sunniest Januarys were 2017, 2019 and 2025, among others at 1.3 kWh/m²/day, and the cloudiest were 2006, 2012 and 2018 at 0.9.
Average wind speed in Chilliwack during January is 0.3 m/s. The windiest Januarys were 1985 and 2013 at 0.5 m/s, while the calmest were 2021, 2023 and 2024, among others at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -1.6°C | -2.1°C | -1.6°C | -1.0°C | -1.2°C | +0.4°C |
| Avg High | 1.4°C | 0.8°C | 1.3°C | 1.7°C | 1.4°C | 0°C |
| Avg Low | -4.5°C | -4.9°C | -4.4°C | -3.7°C | -3.9°C | +0.6°C |
| Avg Rain | 248 mm | 255 mm | 254 mm | 232 mm | 247 mm | -1 mm |
January temperatures in Chilliwack have stayed relatively stable across the record.
January has ranged from a record low of -26.5°C (2024) to a record high of 11.8°C (2005).
Rainfall in January is a relatively wet time of year, averaging 247 mm, with a wettest year of 463 mm.
A quieter season to visit Chilliwack
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Chilliwack. That said, January — with days averaging 1.3°C and nights around -4.3°C (mean -1.5°C) and higher rainfall (247 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 | 0.8°C | -2.8°C | -6.3°C | 3.7°C | -13.8°C | 71 mm | 93% | 0.4 m/s | 1.3 |
| 2024 | 0.5°C | -2.3°C | -5.1°C | 8.3°C | -26.5°C | 287 mm | 96% | 0.2 m/s | 1 |
| 2023 | 2.1°C | -0.7°C | -3.5°C | 6.6°C | -14.2°C | 140 mm | 95% | 0.2 m/s | 1.2 |
| 2022 | 2.2°C | -0.4°C | -2.9°C | 6.2°C | -16.6°C | 256 mm | 91% | 0.4 m/s | 1.1 |
| 2021 | 1.8°C | -0.6°C | -3.1°C | 4.4°C | -11.4°C | 265 mm | 96% | 0.2 m/s | 1.2 |
| 2020 🌧️ | 1.0°C | -0.7°C | -2.4°C | 4.7°C | -13.5°C | 463 mm | 99% | 0.2 m/s | 1 |
| 2019 | 2.9°C | -0.2°C | -3.3°C | 5.9°C | -9.4°C | 200 mm | 93% | 0.3 m/s | 1.3 |
| 2018 | 2.1°C | 0.6°C | -0.9°C | 4.4°C | -10.4°C | 311 mm | 98% | 0.2 m/s | 0.9 |
| 2017 | -1.5°C | -5.1°C | -8.7°C | 3.4°C | -20.5°C | 125 mm | 90% | 0.4 m/s | 1.3 |
| 2016 | 1.5°C | -1.2°C | -3.9°C | 6.0°C | -12.9°C | 238 mm | 96% | 0.3 m/s | 1.1 |
| 2015 | 4.4°C | 1.6°C | -1.2°C | 10.6°C | -6.2°C | 213 mm | 92% | 0.4 m/s | 1.2 |
| 2014 | 3.2°C | 0.4°C | -2.5°C | 9.9°C | -10.1°C | 213 mm | 91% | 0.3 m/s | 1.2 |
| 2013 | 0.2°C | -2.6°C | -5.4°C | 4.8°C | -18.7°C | 190 mm | 90% | 0.5 m/s | 1.1 |
| 2012 | 0.2°C | -2.6°C | -5.3°C | 4.6°C | -16.2°C | 289 mm | 95% | 0.2 m/s | 0.9 |
| 2011 | 0.6°C | -2.0°C | -4.7°C | 5.7°C | -14.5°C | 322 mm | 94% | 0.3 m/s | 1.1 |
| 2010 | 3.5°C | 1.0°C | -1.4°C | 6.5°C | -8.9°C | 221 mm | 95% | 0.2 m/s | 1.1 |
| 2009 | 0.1°C | -2.9°C | -5.8°C | 3.8°C | -17.7°C | 248 mm | 92% | 0.3 m/s | 1.2 |
| 2008 | -0.7°C | -3.9°C | -7.0°C | 2.2°C | -18.6°C | 201 mm | 96% | 0.3 m/s | 1.2 |
| 2007 | 0.6°C | -2.7°C | -6.0°C | 5.4°C | -18.8°C | 279 mm | 94% | 0.3 m/s | 1.2 |
| 2006 | 2.5°C | 1.1°C | -0.3°C | 6.1°C | -4.0°C | 430 mm | 98% | 0.2 m/s | 0.9 |
| 2005 | 2.7°C | -1.0°C | -4.6°C | 11.8°C | -19.1°C | 245 mm | 93% | 0.3 m/s | 1.1 |
| 2004 | 0.4°C | -2.1°C | -4.5°C | 4.8°C | -24.6°C | 240 mm | 97% | 0.2 m/s | 1.1 |
| 2003 | 4.0°C | 1.4°C | -1.3°C | 8.1°C | -8.8°C | 263 mm | 94% | 0.2 m/s | 1 |
| 2002 | 0.7°C | -1.7°C | -4.0°C | 5.0°C | -14.9°C | 284 mm | 97% | 0.2 m/s | 1 |
| 2001 | 2.3°C | -0.9°C | -4.0°C | 8.4°C | -9.9°C | 157 mm | 94% | 0.3 m/s | 1.2 |
| 2000 | 0.3°C | -3.0°C | -6.3°C | 2.1°C | -12.3°C | 191 mm | 97% | 0.2 m/s | 1.1 |
| 1999 | 1.3°C | -0.7°C | -2.6°C | 4.0°C | -14.8°C | 287 mm | 95% | 0.3 m/s | 1 |
| 1998 | 0.1°C | -2.6°C | -5.3°C | 4.1°C | -22.8°C | 287 mm | 98% | 0.2 m/s | 1.1 |
| 1997 | 0.4°C | -2.5°C | -5.5°C | 3.7°C | -23.5°C | 329 mm | 96% | 0.2 m/s | 1.1 |
| 1996 | -1.0°C | -4.1°C | -7.1°C | 5.2°C | -24.8°C | 265 mm | 96% | 0.2 m/s | 1.1 |
| 1995 | 2.1°C | -1.2°C | -4.5°C | 8.0°C | -13.2°C | 158 mm | 95% | 0.2 m/s | 1.1 |
| 1994 | 4.0°C | 1.9°C | -0.3°C | 7.5°C | -5.6°C | 152 mm | 96% | 0.2 m/s | 1.1 |
| 1993 ❄️ | -2.3°C | -6.6°C | -10.9°C | 4.4°C | -21.4°C | 193 mm | 97% | 0.3 m/s | 1.3 |
| 1992 | 2.7°C | 0.2°C | -2.2°C | 6.8°C | -12.5°C | 303 mm | 94% | 0.3 m/s | 1.1 |
| 1991 | -0.6°C | -3.9°C | -7.2°C | 3.1°C | -19.5°C | 218 mm | 93% | 0.3 m/s | 1.1 |
| 1990 | 1.2°C | -1.1°C | -3.4°C | 4.8°C | -10.9°C | 363 mm | 97% | 0.2 m/s | 1 |
| 1989 | 0.0°C | -2.6°C | -5.3°C | 3.6°C | -17.2°C | 344 mm | 97% | 0.3 m/s | 1 |
| 1988 | -0.1°C | -3.4°C | -6.7°C | 4.7°C | -18.1°C | 187 mm | 95% | 0.3 m/s | 1.1 |
| 1987 | 1.1°C | -2.1°C | -5.2°C | 7.4°C | -16.5°C | 227 mm | 94% | 0.3 m/s | 1.1 |
| 1986 | 3.1°C | 0.5°C | -2.1°C | 6.7°C | -9.0°C | 307 mm | 96% | 0.2 m/s | 1 |
| 1985 | 1.0°C | -2.9°C | -6.8°C | 4.7°C | -13.7°C | 34 mm | 89% | 0.5 m/s | 1.3 |
| 1984 | 1.5°C | -1.2°C | -4.0°C | 5.8°C | -16.2°C | 358 mm | 93% | 0.3 m/s | 1 |
| 1983 | 2.2°C | 0.0°C | -2.2°C | 6.0°C | -7.9°C | 328 mm | 96% | 0.2 m/s | — |
| 1982 | -1.9°C | -4.4°C | -7.0°C | 1.9°C | -24.5°C | 379 mm | 98% | 0.2 m/s | — |
| 1981 🔥 | 5.5°C | 2.1°C | -1.2°C | 10.2°C | -4.2°C | 71 mm | 92% | 0.3 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 1.3°C with lows near -4.3°C (mean -1.5°C), based on 45 years of NASA POWER data.
January averages 247 mm of rainfall in Chilliwack, a relatively wet time of year. The wettest on record was 463 mm in 2020.
The hottest January reached 11.8°C in 2005. The coldest dipped to -26.5°C in 2024.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have fallen by about 0.1°C. Daytime highs moved from 1.7°C to 1.5°C and overnight lows from -4.2°C to -4.2°C over the same span.
January is one of the cooler months of the year in Chilliwack and a relatively wet time of year, so plan for around 1.3°C daytime highs and -4.3°C at night.
Not quite — January is the 2nd coolest month in Chilliwack, averaging -1.5°C.
For January in Chilliwack, pack warm layers and a jacket for chilly mornings, with typical highs of 1.3°C and lows of -4.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 95% — quite humid.
Average wind speed in January is 0.3 m/s. The windiest January on record averaged 0.5 m/s (1985).
The wettest January on record was 2020 with 463 mm. On average, January sees 247 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 Chilliwack 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.
