Summit Weather in December
Average highs run from 51°F on December 1 to 44°F on December 31, and lows from 30°F to 24°F. Normal precipitation for the month is 3.24 in over about 8 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
- 47°F
- Average low
- 26°F
- Precipitation
- 3.24 in
- Snowfall
- 1.1 in
- Record high
- 84°FDec 27, 2025
- Record low
- -5°FDec 22, 2022
- Chance of a freeze
- 100%
- Daylight
- 9 h 52 min to 9 h 44 min
- Cloud cover
- 62%
- Humidity
- 83%
- Dew point
- 32°F
- Wind
- 4.9 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 | 51°F | 30°F | 71°F 1998 | 19°F 2006 | 26% | 1% |
| Dec 2 | 51°F | 30°F | 79°F 2021 | 20°F 2006 | 25% | 1% |
| Dec 3 | 51°F | 29°F | 77°F 2021 | 18°F 2000 | 25% | 1% |
| Dec 4 | 50°F | 29°F | 78°F 1998 | 14°F 2006 | 25% | 1% |
| Dec 5 | 50°F | 29°F | 78°F 1998 | 17°F 2009 | 25% | 1% |
| Dec 6 | 50°F | 28°F | 79°F 1998 | 17°F 2002 | 25% | 1% |
| Dec 7 | 49°F | 28°F | 70°F 1998 | 7°F 2013 | 25% | 1% |
| Dec 8 | 49°F | 28°F | 66°F 2015 | 6°F 2006 | 25% | 1% |
| Dec 9 | 49°F | 28°F | 74°F 2020 | 10°F 2005 | 25% | 1% |
| Dec 10 | 48°F | 27°F | 76°F 2021 | 12°F 2009 | 25% | 1% |
| Dec 11 | 48°F | 27°F | 72°F 2021 | 11°F 2000 | 25% | 1% |
| Dec 12 | 48°F | 27°F | 72°F 2015 | 8°F 2000 | 25% | 2% |
| Dec 13 | 48°F | 27°F | 68°F 2006 | 10°F 2010 | 25% | 2% |
| Dec 14 | 47°F | 27°F | 71°F 2006 | 11°F 2025 | 25% | 2% |
| Dec 15 | 47°F | 26°F | 73°F 2021 | 14°F 2025 | 25% | 2% |
| Dec 16 | 47°F | 26°F | 70°F 2006 | 9°F 2000 | 25% | 2% |
| Dec 17 | 47°F | 26°F | 72°F 2006 | 5°F 2000 | 25% | 2% |
| Dec 18 | 46°F | 26°F | 66°F 2002 | 9°F 2016 | 25% | 2% |
| Dec 19 | 46°F | 26°F | 61°F 2012 | 5°F 2016 | 25% | 2% |
| Dec 20 | 46°F | 25°F | 67°F 2013 | 11°F 2000 | 25% | 2% |
| Dec 21 | 46°F | 25°F | 70°F 2015 | 10°F 2000 | 25% | 2% |
| Dec 22 | 46°F | 25°F | 63°F 2012 | -5°F 2022 | 25% | 2% |
| Dec 23 | 45°F | 25°F | 77°F 2025 | -4°F 2022 | 25% | 3% |
| Dec 24 | 45°F | 25°F | 75°F 2025 | 6°F 2004 | 25% | 3% |
| Dec 25 | 45°F | 25°F | 78°F 2025 | 9°F 2004 | 25% | 3% |
| Dec 26 | 45°F | 25°F | 79°F 2025 | 17°F 2002 | 25% | 3% |
| Dec 27 | 45°F | 24°F | 84°F 2025 | 13°F 2017 | 25% | 3% |
| Dec 28 | 45°F | 24°F | 78°F 2025 | 10°F 2017 | 25% | 3% |
| Dec 29 | 45°F | 24°F | 73°F 2022 | 14°F 2000 | 25% | 3% |
| Dec 30 | 44°F | 24°F | 71°F 1999 | 14°F 2000 | 25% | 3% |
| Dec 31 | 44°F | 24°F | 74°F 2021 | 7°F 2017 | 25% | 4% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:04 AM, sunset 4:56 PM
- December 31
- sunrise 7:22 AM, sunset 5:06 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00034106 (Lead Hill), public domain. Records: NOAA GHCN-Daily, station USW00053918, 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.