Simla Weather in December
Average highs run from 45°F on December 1 to 43°F on December 31, and lows from 18°F to 16°F. Normal precipitation for the month is 0.27 in over about 3 wet days.
December day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 43°F
- Average low
- 16°F
- Precipitation
- 0.27 in
- Snowfall
- 4.1 in
- Record high
- 75°FDec 1, 1998
- Record low
- -27°FDec 17, 2016
- Chance of a freeze
- 100%
- Daylight
- 9 h 37 min to 9 h 28 min
- Cloud cover
- 59%
- Humidity
- 58%
- Dew point
- 17°F
- Wind
- 9.8 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Dec 1 | 45°F | 18°F | 75°F 1998 | -9°F 1985 | 11% | 10% |
| Dec 2 | 45°F | 17°F | 72°F 2021 | -2°F 2009 | 11% | 10% |
| Dec 3 | 45°F | 17°F | 68°F 1959 | -5°F 2009 | 11% | 10% |
| Dec 4 | 44°F | 17°F | 73°F 1965 | -8°F 2009 | 11% | 10% |
| Dec 5 | 44°F | 17°F | 71°F 1949 | -19°F 2013 | 11% | 10% |
| Dec 6 | 44°F | 17°F | 72°F 2023 | -19°F 1972 | 11% | 10% |
| Dec 7 | 43°F | 17°F | 70°F 1999 | -16°F 1978 | 11% | 10% |
| Dec 8 | 43°F | 16°F | 65°F 1968 | -18°F 1978 | 11% | 10% |
| Dec 9 | 43°F | 16°F | 71°F 1957 | -21°F 2009 | 11% | 10% |
| Dec 10 | 43°F | 16°F | 64°F 1968 | -19°F 2009 | 11% | 10% |
| Dec 11 | 43°F | 16°F | 71°F 2004 | -13°F 1961 | 10% | 10% |
| Dec 12 | 43°F | 16°F | 69°F 2021 | -20°F 1961 | 10% | 10% |
| Dec 13 | 42°F | 16°F | 75°F 2008 | -19°F 1961 | 10% | 10% |
| Dec 14 | 42°F | 16°F | 66°F 1957 | -10°F 2008 | 10% | 9% |
| Dec 15 | 42°F | 16°F | 67°F 1962 | -8°F 1972 | 10% | 9% |
| Dec 16 | 42°F | 16°F | 68°F 1957 | -8°F 2022 | 10% | 9% |
| Dec 17 | 42°F | 16°F | 74°F 1980 | -27°F 2016 | 10% | 9% |
| Dec 18 | 42°F | 16°F | 65°F 1979 | -25°F 2016 | 10% | 9% |
| Dec 19 | 42°F | 16°F | 69°F 2025 | -15°F 2016 | 10% | 9% |
| Dec 20 | 42°F | 16°F | 68°F 1954 | -16°F 1998 | 10% | 9% |
| Dec 21 | 42°F | 16°F | 67°F 1955 | -23°F 1998 | 10% | 9% |
| Dec 22 | 42°F | 16°F | 75°F 2025 | -23°F 1998 | 10% | 9% |
| Dec 23 | 42°F | 16°F | 73°F 1964 | -22°F 2004 | 10% | 9% |
| Dec 24 | 42°F | 16°F | 75°F 1955 | -22°F 2004 | 10% | 8% |
| Dec 25 | 42°F | 16°F | 74°F 2025 | -14°F 1983 | 10% | 8% |
| Dec 26 | 42°F | 16°F | 68°F 1980 | -13°F 2012 | 10% | 8% |
| Dec 27 | 42°F | 16°F | 70°F 1980 | -3°F 1966 | 10% | 8% |
| Dec 28 | 42°F | 16°F | 63°F 2002 | -13°F 2007 | 9% | 8% |
| Dec 29 | 43°F | 16°F | 65°F 1965 | -13°F 2007 | 9% | 8% |
| Dec 30 | 43°F | 16°F | 69°F 1980 | -18°F 2014 | 9% | 8% |
| Dec 31 | 43°F | 16°F | 65°F 2025 | -20°F 2014 | 9% | 7% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 6:57 AM, sunset 4:34 PM
- December 31
- sunrise 7:16 AM, sunset 4:44 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00057287 (Rush 1N), public domain. Records: NOAA GHCN-Daily, station USW00093010, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: 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.