Alta Weather in December
Average highs run from -5°C on December 1 to -7°C on December 31, and lows from -10°C to -13°C. Normal precipitation for the month is 68 mm over about 19 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
- -6°C
- Average low
- -11°C
- Precipitation
- 68 mm
- Reanalysis high
- 3°CDec 17, 2007
- Reanalysis low
- -26°CDec 27, 2020
- Daylight
- 0 h 00 min to 0 h 00 min
- Cloud cover
- 86%
- Humidity
- 97%
- Dew point
- -9°C
- Wind
- 20.2 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 | -5°C | -10°C | 2°C 1998 | -20°C 2012 | 50% |
| Dec 2 | -5°C | -10°C | 2°C 2003 | -20°C 2012 | 51% |
| Dec 3 | -5°C | -10°C | 0°C 2003 | -19°C 2016 | 52% |
| Dec 4 | -5°C | -10°C | 1°C 2019 | -17°C 2016 | 53% |
| Dec 5 | -5°C | -10°C | 2°C 2019 | -20°C 2016 | 54% |
| Dec 6 | -5°C | -10°C | 1°C 2000 | -20°C 2016 | 54% |
| Dec 7 | -5°C | -10°C | 1°C 1991 | -18°C 1999 | 54% |
| Dec 8 | -5°C | -10°C | 1°C 1991 | -16°C 2011 | 55% |
| Dec 9 | -5°C | -10°C | 0°C 1996 | -21°C 2013 | 55% |
| Dec 10 | -5°C | -10°C | 1°C 1992 | -20°C 2013 | 55% |
| Dec 11 | -5°C | -10°C | 2°C 2013 | -17°C 2000 | 56% |
| Dec 12 | -5°C | -10°C | 2°C 2001 | -17°C 2012 | 57% |
| Dec 13 | -5°C | -10°C | 1°C 2007 | -17°C 1993 | 58% |
| Dec 14 | -5°C | -10°C | 2°C 2007 | -20°C 2009 | 58% |
| Dec 15 | -5°C | -10°C | 2°C 2001 | -19°C 1999 | 59% |
| Dec 16 | -5°C | -10°C | 2°C 1997 | -19°C 2018 | 59% |
| Dec 17 | -6°C | -10°C | 3°C 2007 | -21°C 1999 | 59% |
| Dec 18 | -6°C | -11°C | 2°C 2007 | -22°C 2010 | 60% |
| Dec 19 | -6°C | -11°C | 2°C 2016 | -22°C 2010 | 61% |
| Dec 20 | -6°C | -11°C | 2°C 2017 | -23°C 1996 | 60% |
| Dec 21 | -6°C | -11°C | 2°C 2006 | -23°C 1995 | 60% |
| Dec 22 | -6°C | -11°C | 2°C 2006 | -24°C 1995 | 59% |
| Dec 23 | -7°C | -12°C | 1°C 1992 | -21°C 1995 | 59% |
| Dec 24 | -7°C | -12°C | 1°C 1992 | -20°C 2002 | 58% |
| Dec 25 | -7°C | -12°C | 2°C 2008 | -21°C 2000 | 58% |
| Dec 26 | -7°C | -12°C | 2°C 2008 | -25°C 2020 | 58% |
| Dec 27 | -7°C | -12°C | -1°C 2005 | -26°C 2020 | 56% |
| Dec 28 | -7°C | -12°C | 2°C 2008 | -23°C 2002 | 55% |
| Dec 29 | -7°C | -12°C | 2°C 2008 | -24°C 1995 | 54% |
| Dec 30 | -7°C | -12°C | 1°C 2014 | -25°C 1995 | 53% |
| Dec 31 | -7°C | -13°C | 1°C 2014 | -20°C 2001 | 52% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+1).
- December 1
- sunrise , sunset
- December 31
- sunrise , sunset
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.