Chilliwack Weather in December
Average highs run from 2°C on December 1 to 0°C on December 31, and lows from -4°C to -5°C. Normal precipitation for the month is 236 mm over about 22 wet days.
December day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
December at a glance
- Average high
- 1°C
- Average low
- -5°C
- Precipitation
- 236 mm
- Reanalysis high
- 10°CDec 10, 2014
- Reanalysis low
- -26°CDec 20, 2008
- Daylight
- 8 h 31 min to 8 h 16 min
- Cloud cover
- 73%
- Humidity
- 95%
- Dew point
- -3°C
- Wind
- 6.8 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Dec 1 | 2°C | -4°C | 10°C 2008 | -14°C 2006 | 68% |
| Dec 2 | 2°C | -4°C | 8°C 2002 | -15°C 2006 | 68% |
| Dec 3 | 2°C | -4°C | 8°C 2007 | -19°C 1994 | 68% |
| Dec 4 | 2°C | -4°C | 8°C 2007 | -19°C 1994 | 68% |
| Dec 5 | 2°C | -4°C | 9°C 2002 | -17°C 2013 | 68% |
| Dec 6 | 2°C | -4°C | 7°C 2002 | -19°C 2013 | 68% |
| Dec 7 | 1°C | -4°C | 7°C 2002 | -22°C 2013 | 68% |
| Dec 8 | 1°C | -4°C | 8°C 2015 | -18°C 1995 | 68% |
| Dec 9 | 1°C | -4°C | 10°C 2014 | -18°C 1995 | 68% |
| Dec 10 | 1°C | -4°C | 10°C 2014 | -15°C 2000 | 68% |
| Dec 11 | 1°C | -4°C | 6°C 2014 | -14°C 2000 | 70% |
| Dec 12 | 1°C | -4°C | 7°C 2002 | -13°C 2000 | 71% |
| Dec 13 | 1°C | -4°C | 5°C 2014 | -18°C 2016 | 73% |
| Dec 14 | 1°C | -4°C | 7°C 2002 | -19°C 2016 | 74% |
| Dec 15 | 1°C | -4°C | 5°C 2004 | -20°C 2008 | 74% |
| Dec 16 | 1°C | -5°C | 5°C 1997 | -21°C 2016 | 74% |
| Dec 17 | 1°C | -5°C | 6°C 2004 | -17°C 2016 | 73% |
| Dec 18 | 1°C | -5°C | 7°C 2004 | -19°C 1992 | 73% |
| Dec 19 | 1°C | -5°C | 5°C 2004 | -21°C 2008 | 73% |
| Dec 20 | 1°C | -5°C | 6°C 2009 | -26°C 2008 | 73% |
| Dec 21 | 1°C | -5°C | 5°C 2014 | -18°C 1998 | 73% |
| Dec 22 | 1°C | -5°C | 6°C 2005 | -18°C 1998 | 72% |
| Dec 23 | 1°C | -5°C | 5°C 2014 | -18°C 2017 | 72% |
| Dec 24 | 0°C | -5°C | 10°C 2005 | -16°C 2017 | 72% |
| Dec 25 | 0°C | -5°C | 8°C 2005 | -19°C 1996 | 70% |
| Dec 26 | 0°C | -5°C | 6°C 2000 | -18°C 1996 | 69% |
| Dec 27 | 0°C | -5°C | 6°C 1999 | -18°C 1996 | 69% |
| Dec 28 | 0°C | -5°C | 4°C 1999 | -16°C 1996 | 68% |
| Dec 29 | 0°C | -6°C | 3°C 1998 | -16°C 1996 | 68% |
| Dec 30 | 0°C | -5°C | 5°C 1991 | -19°C 2010 | 69% |
| Dec 31 | 0°C | -5°C | 4°C 2005 | -19°C 1992 | 70% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 7:41 AM, sunset 4:12 PM
- December 31
- sunrise 8:03 AM, sunset 4:19 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.