Summit Park Weather in December
Average highs run from 43°F on December 1 to 39°F on December 31, and lows from 25°F to 20°F. Normal precipitation for the month is 2.17 in over about 13 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
- 40°F
- Average low
- 22°F
- Precipitation
- 2.17 in
- Snowfall
- 31.1 in
- Record high
- 69°FDec 1, 1995
- Record low
- -15°FDec 15, 1972
- Chance of a freeze
- 100%
- Daylight
- 9 h 29 min to 9 h 19 min
- Cloud cover
- 60%
- Humidity
- 85%
- Dew point
- 14°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 | 43°F | 25°F | 69°F 1995 | 6°F 1991 | 36% | 26% |
| Dec 2 | 42°F | 24°F | 60°F 2013 | 11°F 1968 | 36% | 26% |
| Dec 3 | 42°F | 24°F | 65°F 2017 | 12°F 1968 | 37% | 27% |
| Dec 4 | 42°F | 24°F | 59°F 2014 | 3°F 1992 | 37% | 27% |
| Dec 5 | 41°F | 24°F | 59°F 1949 | -3°F 1972 | 37% | 28% |
| Dec 6 | 41°F | 23°F | 58°F 1987 | 9°F 1992 | 38% | 28% |
| Dec 7 | 41°F | 23°F | 58°F 1981 | 1°F 1951 | 38% | 29% |
| Dec 8 | 40°F | 23°F | 57°F 1975 | -3°F 1951 | 38% | 29% |
| Dec 9 | 40°F | 23°F | 61°F 2015 | -11°F 1972 | 38% | 29% |
| Dec 10 | 40°F | 22°F | 65°F 1981 | -13°F 1972 | 39% | 30% |
| Dec 11 | 40°F | 22°F | 62°F 1993 | -11°F 1972 | 39% | 30% |
| Dec 12 | 40°F | 22°F | 63°F 2014 | -5°F 1972 | 39% | 30% |
| Dec 13 | 39°F | 22°F | 56°F 1996 | -4°F 1972 | 39% | 31% |
| Dec 14 | 39°F | 22°F | 60°F 1977 | -13°F 1972 | 40% | 31% |
| Dec 15 | 39°F | 21°F | 59°F 1977 | -15°F 1972 | 40% | 31% |
| Dec 16 | 39°F | 21°F | 56°F 1957 | -2°F 1972 | 40% | 31% |
| Dec 17 | 39°F | 21°F | 67°F 2025 | 3°F 1972 | 40% | 32% |
| Dec 18 | 39°F | 21°F | 54°F 2024 | 7°F 1964 | 40% | 32% |
| Dec 19 | 39°F | 21°F | 60°F 2025 | 3°F 1970 | 41% | 32% |
| Dec 20 | 39°F | 21°F | 61°F 1981 | -7°F 1990 | 41% | 32% |
| Dec 21 | 39°F | 21°F | 67°F 1969 | -9°F 1990 | 41% | 32% |
| Dec 22 | 39°F | 21°F | 67°F 2025 | -10°F 1990 | 41% | 32% |
| Dec 23 | 39°F | 20°F | 63°F 2025 | -11°F 1990 | 41% | 33% |
| Dec 24 | 39°F | 20°F | 63°F 2025 | -7°F 1990 | 41% | 33% |
| Dec 25 | 39°F | 20°F | 60°F 2025 | -4°F 1948 | 41% | 33% |
| Dec 26 | 39°F | 20°F | 58°F 1980 | -2°F 1948 | 41% | 33% |
| Dec 27 | 39°F | 20°F | 55°F 2022 | 0°F 1988 | 41% | 33% |
| Dec 28 | 39°F | 20°F | 58°F 2005 | 0°F 1990 | 41% | 34% |
| Dec 29 | 39°F | 20°F | 56°F 2011 | -7°F 1990 | 41% | 34% |
| Dec 30 | 39°F | 20°F | 61°F 2011 | -9°F 1990 | 41% | 34% |
| Dec 31 | 39°F | 20°F | 62°F 1996 | -7°F 1990 | 41% | 34% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:31 AM, sunset 5:00 PM
- December 31
- sunrise 7:50 AM, sunset 5:09 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00425892 (Mtn Dell Dam), public domain. Records: NOAA GHCN-Daily, station USW00024127, 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.