Lethbridge Weather in December
Average highs run from 0°C on December 1 to -4°C on December 31, and lows from -8°C to -12°C. Normal precipitation for the month is 28 mm over about 9 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
- -2°C
- Average low
- -10°C
- Precipitation
- 28 mm
- Reanalysis high
- 9°CDec 16, 2002
- Reanalysis low
- -36°CDec 7, 2013
- Daylight
- 8 h 26 min to 8 h 13 min
- Cloud cover
- 68%
- Humidity
- 82%
- Dew point
- -9°C
- Wind
- 19.1 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 | 0°C | -8°C | 9°C 2002 | -18°C 2014 | 28% |
| Dec 2 | -1°C | -8°C | 5°C 1998 | -19°C 1994 | 28% |
| Dec 3 | -1°C | -8°C | 5°C 2012 | -21°C 1994 | 28% |
| Dec 4 | -1°C | -9°C | 5°C 2015 | -22°C 2005 | 27% |
| Dec 5 | -1°C | -9°C | 4°C 2003 | -26°C 2013 | 26% |
| Dec 6 | -1°C | -9°C | 5°C 2003 | -30°C 2013 | 26% |
| Dec 7 | -1°C | -9°C | 5°C 2015 | -36°C 2013 | 26% |
| Dec 8 | -2°C | -9°C | 6°C 2015 | -28°C 2009 | 26% |
| Dec 9 | -2°C | -9°C | 6°C 2015 | -21°C 2016 | 25% |
| Dec 10 | -2°C | -9°C | 4°C 1993 | -22°C 2000 | 24% |
| Dec 11 | -2°C | -9°C | 6°C 2017 | -24°C 2000 | 24% |
| Dec 12 | -2°C | -9°C | 6°C 2002 | -24°C 2009 | 23% |
| Dec 13 | -2°C | -9°C | 8°C 1998 | -26°C 2009 | 23% |
| Dec 14 | -2°C | -9°C | 6°C 2002 | -29°C 2008 | 24% |
| Dec 15 | -2°C | -9°C | 8°C 2002 | -29°C 2008 | 25% |
| Dec 16 | -2°C | -10°C | 9°C 2002 | -26°C 2016 | 26% |
| Dec 17 | -2°C | -10°C | 5°C 1997 | -26°C 2016 | 25% |
| Dec 18 | -2°C | -10°C | 4°C 2004 | -23°C 1992 | 24% |
| Dec 19 | -2°C | -10°C | 6°C 2004 | -25°C 2008 | 24% |
| Dec 20 | -2°C | -10°C | 5°C 1994 | -29°C 2008 | 24% |
| Dec 21 | -3°C | -10°C | 6°C 2019 | -28°C 1996 | 26% |
| Dec 22 | -3°C | -10°C | 4°C 2005 | -33°C 1996 | 27% |
| Dec 23 | -3°C | -11°C | 4°C 2005 | -33°C 1996 | 27% |
| Dec 24 | -3°C | -11°C | 5°C 2005 | -29°C 1996 | 28% |
| Dec 25 | -3°C | -11°C | 6°C 2005 | -28°C 1996 | 29% |
| Dec 26 | -3°C | -11°C | 7°C 1999 | -29°C 1996 | 28% |
| Dec 27 | -3°C | -11°C | 4°C 1999 | -29°C 1992 | 30% |
| Dec 28 | -3°C | -12°C | 5°C 2011 | -34°C 1992 | 30% |
| Dec 29 | -4°C | -12°C | 6°C 1997 | -35°C 1992 | 30% |
| Dec 30 | -4°C | -12°C | 5°C 2011 | -35°C 1992 | 29% |
| Dec 31 | -4°C | -12°C | 4°C 2005 | -31°C 2017 | 30% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 8:07 AM, sunset 4:33 PM
- December 31
- sunrise 8:28 AM, sunset 4:41 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.