Arapahoe Weather in December
Average highs run from 61°F on December 1 to 56°F on December 31, and lows from 39°F to 35°F. Normal precipitation for the month is 4.10 in over about 10 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
- 58°F
- Average low
- 37°F
- Precipitation
- 4.10 in
- Snowfall
- 0.2 in
- Record high
- 82°FDec 2, 1991
- Record low
- 0°FDec 25, 1989
- Chance of a freeze
- 98%
- Daylight
- 9 h 59 min to 9 h 51 min
- Cloud cover
- 59%
- Humidity
- 83%
- Dew point
- 44°F
- Wind
- 8.5 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 | 61°F | 39°F | 80°F 1982 | 18°F 1964 | 29% | 0% |
| Dec 2 | 61°F | 39°F | 82°F 1991 | 14°F 1964 | 30% | 0% |
| Dec 3 | 61°F | 39°F | 77°F 1991 | 25°F 1946 | 30% | 0% |
| Dec 4 | 60°F | 39°F | 78°F 1982 | 21°F 2024 | 30% | 0% |
| Dec 5 | 60°F | 38°F | 77°F 1982 | 22°F 1963 | 30% | 0% |
| Dec 6 | 60°F | 38°F | 79°F 1998 | 22°F 2024 | 31% | 0% |
| Dec 7 | 60°F | 38°F | 79°F 1951 | 18°F 2024 | 31% | 0% |
| Dec 8 | 60°F | 38°F | 78°F 1951 | 17°F 2010 | 31% | 0% |
| Dec 9 | 59°F | 38°F | 79°F 1951 | 17°F 2006 | 31% | 0% |
| Dec 10 | 59°F | 38°F | 78°F 1987 | 22°F 2006 | 31% | 0% |
| Dec 11 | 59°F | 38°F | 77°F 2021 | 22°F 1977 | 32% | 0% |
| Dec 12 | 59°F | 38°F | 78°F 2007 | 16°F 1957 | 32% | 0% |
| Dec 13 | 59°F | 37°F | 79°F 1956 | 14°F 1962 | 32% | 0% |
| Dec 14 | 59°F | 37°F | 78°F 1991 | 17°F 1960 | 32% | 0% |
| Dec 15 | 58°F | 37°F | 76°F 1971 | 15°F 1962 | 32% | 0% |
| Dec 16 | 58°F | 37°F | 79°F 1971 | 19°F 1958 | 32% | 0% |
| Dec 17 | 58°F | 37°F | 78°F 1956 | 16°F 1963 | 32% | 0% |
| Dec 18 | 58°F | 37°F | 78°F 1984 | 14°F 1963 | 32% | 0% |
| Dec 19 | 58°F | 37°F | 80°F 1967 | 17°F 1963 | 32% | 0% |
| Dec 20 | 58°F | 37°F | 73°F 1987 | 19°F 1963 | 32% | 0% |
| Dec 21 | 58°F | 37°F | 76°F 1988 | 14°F 1963 | 32% | 0% |
| Dec 22 | 57°F | 36°F | 79°F 1990 | 18°F 1989 | 32% | 0% |
| Dec 23 | 57°F | 36°F | 77°F 1990 | 16°F 1989 | 32% | 0% |
| Dec 24 | 57°F | 36°F | 79°F 2015 | 14°F 1983 | 32% | 0% |
| Dec 25 | 57°F | 36°F | 78°F 2015 | 0°F 1989 | 32% | 0% |
| Dec 26 | 57°F | 36°F | 80°F 1987 | 14°F 1983 | 32% | 0% |
| Dec 27 | 57°F | 36°F | 78°F 2015 | 16°F 1989 | 32% | 0% |
| Dec 28 | 57°F | 36°F | 76°F 1971 | 19°F 1977 | 32% | 0% |
| Dec 29 | 57°F | 36°F | 78°F 2015 | 19°F 1977 | 32% | 0% |
| Dec 30 | 56°F | 36°F | 79°F 1984 | 20°F 1961 | 31% | 1% |
| Dec 31 | 56°F | 35°F | 76°F 1951 | 16°F 1961 | 31% | 1% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- December 1
- sunrise 6:57 AM, sunset 4:56 PM
- December 31
- sunrise 7:15 AM, sunset 5:06 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00310576 (Bayboro 3 Sw), public domain. Records: NOAA GHCN-Daily, station USW00013754, 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.