December is one of the cooler months of the year in Prince George, with average highs near -6.5°C and lows around -13.8°C (mean -10.1°C). It is about average for rainfall, averaging 72 mm of rainfall and 98% relative humidity across the period.
December is one of the cooler months of the year in Prince George. Across 45 years of records, the warmest December in Prince George was 2023 — when the month averaged -4.2°C — while the coldest was 1984 at -19.4°C. Typical December days reach -6.5°C with nights near -13.8°C. The long-term trend is warming, about 0.5°C per decade.
December is about average for rainfall in Prince George, averaging 72 mm of rainfall. The wettest December on record was 2013 with 145 mm, while the driest was 2002 at 19 mm.
Relative humidity in Prince George during December averages 98%. The most humid Decembers were 2006 and 2007 at 99%, and the least humid was 1983 at 94%.
December receives about 0.6 kWh/m²/day of solar energy in Prince George. The sunniest Decembers were 2009, 2016 and 2017, among others at 0.7 kWh/m²/day, and the cloudiest were 1990, 1991 and 2024, among others at 0.4.
Average wind speed in Prince George during December is 0.4 m/s. The windiest Decembers were 2008, 2016 and 2017, among others at 0.5 m/s, while the calmest were 2002, 2012 and 2014, among others at 0.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -11.4°C | -10.2°C | -9.7°C | -9.7°C | -9.5°C | +1.9°C |
| Avg High | -7.7°C | -6.4°C | -6.2°C | -6.1°C | -6.1°C | +1.6°C |
| Avg Low | -15.1°C | -14.0°C | -13.3°C | -13.3°C | -13.0°C | +2.1°C |
| Avg Rain | 69 mm | 84 mm | 63 mm | 71 mm | 77 mm | +8 mm |
December temperatures in Prince George have risen by about 3.7°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -43.6°C (1990) to a record high of 5°C (2014).
Rainfall in December is about average for rainfall, averaging 72 mm, with a wettest year of 145 mm.
A quieter season to visit Prince George
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Prince George. That said, December — with days averaging -6.5°C and nights around -13.8°C (mean -10.1°C) and moderate rainfall (72 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 | -5.0°C | -8.6°C | -12.3°C | 1.7°C | -33.7°C | 131 mm | 98% | 0.4 m/s | — |
| 2024 | -3.2°C | -5.8°C | -8.5°C | 0.2°C | -22.9°C | 96 mm | 99% | 0.4 m/s | 0.4 |
| 2023 🔥 | -1.2°C | -4.2°C | -7.2°C | 2.3°C | -14.9°C | 66 mm | 98% | 0.4 m/s | 0.5 |
| 2022 | -11.1°C | -15.0°C | -18.8°C | 0.1°C | -39.9°C | 47 mm | 96% | 0.4 m/s | 0.6 |
| 2021 | -12.5°C | -17.0°C | -21.5°C | 1.0°C | -43.3°C | 52 mm | 97% | 0.4 m/s | 0.6 |
| 2020 | -3.5°C | -6.6°C | -9.6°C | 0.1°C | -21.0°C | 69 mm | 99% | 0.4 m/s | 0.6 |
| 2019 | -4.9°C | -8.1°C | -11.3°C | 0.9°C | -18.2°C | 81 mm | 99% | 0.4 m/s | 0.5 |
| 2018 | -3.2°C | -6.3°C | -9.4°C | 0.6°C | -18.6°C | 85 mm | 96% | 0.4 m/s | 0.6 |
| 2017 | -8.4°C | -12.2°C | -16.0°C | 0.6°C | -36.7°C | 23 mm | 98% | 0.5 m/s | 0.7 |
| 2016 | -10.3°C | -14.2°C | -18.1°C | 0.6°C | -28.7°C | 51 mm | 96% | 0.5 m/s | 0.7 |
| 2015 | -6.0°C | -9.3°C | -12.6°C | 1.2°C | -24.7°C | 73 mm | 98% | 0.4 m/s | 0.5 |
| 2014 | -3.8°C | -6.9°C | -10.1°C | 5.0°C | -29.5°C | 55 mm | 98% | 0.3 m/s | 0.6 |
| 2013 🌧️ | -6.4°C | -10.6°C | -14.7°C | 0.1°C | -35.0°C | 145 mm | 98% | 0.4 m/s | 0.5 |
| 2012 | -8.2°C | -11.9°C | -15.6°C | 0.2°C | -24.9°C | 71 mm | 99% | 0.3 m/s | 0.5 |
| 2011 | -3.3°C | -6.7°C | -10.2°C | 0.2°C | -17.9°C | 93 mm | 99% | 0.4 m/s | 0.6 |
| 2010 | -6.5°C | -10.6°C | -14.7°C | 0.1°C | -28.0°C | 36 mm | 98% | 0.4 m/s | 0.6 |
| 2009 | -11.5°C | -16.1°C | -20.7°C | 0.1°C | -39.4°C | 39 mm | 99% | 0.4 m/s | 0.7 |
| 2008 | -11.0°C | -15.5°C | -20.1°C | 0.8°C | -36.7°C | 106 mm | 98% | 0.5 m/s | 0.7 |
| 2007 | -8.4°C | -11.9°C | -15.5°C | -1.0°C | -28.2°C | 80 mm | 99% | 0.4 m/s | 0.6 |
| 2006 | -3.4°C | -6.6°C | -9.8°C | 0.2°C | -22.3°C | 91 mm | 99% | 0.4 m/s | 0.6 |
| 2005 | -3.6°C | -6.5°C | -9.3°C | 2.9°C | -19.3°C | 58 mm | 96% | 0.4 m/s | 0.6 |
| 2004 | -4.6°C | -7.9°C | -11.2°C | 0.7°C | -23.2°C | 86 mm | 98% | 0.4 m/s | 0.5 |
| 2003 | -5.0°C | -8.6°C | -12.2°C | 0.1°C | -23.0°C | 37 mm | 99% | 0.4 m/s | 0.5 |
| 2002 | -1.9°C | -4.8°C | -7.6°C | 2.7°C | -12.9°C | 19 mm | 96% | 0.3 m/s | 0.6 |
| 2001 | -6.3°C | -9.8°C | -13.3°C | 0.4°C | -22.1°C | 63 mm | 97% | 0.4 m/s | 0.6 |
| 2000 | -6.6°C | -9.8°C | -12.9°C | 1.6°C | -28.0°C | 52 mm | 96% | 0.4 m/s | 0.6 |
| 1999 | -2.4°C | -5.5°C | -8.5°C | 0.1°C | -19.0°C | 76 mm | 99% | 0.3 m/s | 0.5 |
| 1998 | -6.8°C | -10.2°C | -13.6°C | 0.2°C | -35.3°C | 83 mm | 99% | 0.4 m/s | 0.6 |
| 1997 | -1.8°C | -4.8°C | -7.8°C | 0.1°C | -17.2°C | 77 mm | 98% | 0.4 m/s | 0.5 |
| 1996 | -12.8°C | -17.2°C | -21.7°C | -0.4°C | -41.8°C | 74 mm | 99% | 0.5 m/s | 0.6 |
| 1995 | -8.1°C | -12.5°C | -16.9°C | -1.6°C | -40.1°C | 81 mm | 98% | 0.4 m/s | 0.6 |
| 1994 | -6.9°C | -10.6°C | -14.4°C | 0.2°C | -37.1°C | 59 mm | 98% | 0.4 m/s | 0.6 |
| 1993 | -3.7°C | -7.1°C | -10.5°C | 0.1°C | -20.9°C | 57 mm | 99% | 0.4 m/s | 0.5 |
| 1992 | -10.0°C | -14.7°C | -19.4°C | 0.0°C | -35.8°C | 95 mm | 99% | 0.4 m/s | 0.7 |
| 1991 | -1.9°C | -4.4°C | -7.0°C | 0.2°C | -18.2°C | 100 mm | 99% | 0.4 m/s | 0.4 |
| 1990 | -10.1°C | -15.1°C | -20.1°C | 0.1°C | -43.6°C | 135 mm | 99% | 0.4 m/s | 0.4 |
| 1989 | -3.6°C | -6.6°C | -9.5°C | 0.9°C | -28.7°C | 141 mm | 99% | 0.4 m/s | 0.4 |
| 1988 | -6.6°C | -10.6°C | -14.6°C | 0.8°C | -31.8°C | 105 mm | 98% | 0.4 m/s | 0.6 |
| 1987 | -5.0°C | -8.1°C | -11.2°C | 0.5°C | -25.1°C | 49 mm | 99% | 0.4 m/s | 0.6 |
| 1986 | -4.9°C | -8.2°C | -11.6°C | 0.1°C | -20.5°C | 38 mm | 99% | 0.4 m/s | 0.6 |
| 1985 | -6.4°C | -9.7°C | -13.0°C | 0.1°C | -33.2°C | 56 mm | 99% | 0.4 m/s | 0.5 |
| 1984 ❄️ | -14.3°C | -19.4°C | -24.4°C | 0.0°C | -41.7°C | 81 mm | 98% | 0.5 m/s | 0.6 |
| 1983 | -13.3°C | -17.7°C | -22.0°C | -2.0°C | -35.3°C | 32 mm | 94% | 0.5 m/s | — |
| 1982 | -6.8°C | -10.2°C | -13.5°C | -0.3°C | -21.4°C | 49 mm | 99% | 0.4 m/s | — |
| 1981 | -8.4°C | -12.2°C | -16.1°C | 0.4°C | -34.2°C | 67 mm | 99% | 0.4 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around -6.5°C with lows near -13.8°C (mean -10.1°C), based on 45 years of NASA POWER data.
December averages 72 mm of rainfall in Prince George, about average for rainfall. The wettest on record was 145 mm in 2013.
The hottest December reached 5°C in 2014. The coldest dipped to -43.6°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 3.7°C. Daytime highs moved from -9.8°C to -6.6°C and overnight lows from -17.8°C to -13.7°C over the same span.
December is one of the cooler months of the year in Prince George and about average for rainfall, so plan for around -6.5°C daytime highs and -13.8°C at night.
Yes — December is the coldest month of the year in Prince George, averaging -10.1°C.
For December in Prince George, pack warm layers and a jacket for chilly mornings, with typical highs of -6.5°C and lows of -13.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 98% — quite humid.
Average wind speed in December is 0.4 m/s. The windiest December on record averaged 0.5 m/s (1983).
The wettest December on record was 2013 with 145 mm. On average, December sees 72 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 Prince George behaves each December, 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 December specifically, along with year-by-year records and how the month has changed over the decades.
