Cottage Grove Weather in December
Average highs run from 35°F on December 1 to 25°F on December 31, and lows from 20°F to 9°F. Normal precipitation for the month is 1.23 in over about 9 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
- 30°F
- Average low
- 14°F
- Precipitation
- 1.23 in
- Snowfall
- 11.4 in
- Record high
- 63°FDec 6, 1939
- Record low
- -24°FDec 27, 1950
- Chance of a freeze
- 100%
- Daylight
- 9 h 03 min to 8 h 52 min
- Cloud cover
- 65%
- Humidity
- 88%
- Dew point
- 15°F
- Wind
- 9.6 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 | 35°F | 20°F | 54°F 2021 | -1°F 2014 | 27% | 22% |
| Dec 2 | 35°F | 19°F | 58°F 1998 | -10°F 1940 | 27% | 23% |
| Dec 3 | 34°F | 19°F | 60°F 1998 | -18°F 1940 | 27% | 23% |
| Dec 4 | 34°F | 18°F | 57°F 2017 | -5°F 2025 | 27% | 24% |
| Dec 5 | 34°F | 18°F | 62°F 2001 | -2°F 2000 | 27% | 24% |
| Dec 6 | 33°F | 17°F | 63°F 1939 | -6°F 2005 | 27% | 24% |
| Dec 7 | 33°F | 17°F | 53°F 1939 | -10°F 2013 | 28% | 25% |
| Dec 8 | 32°F | 17°F | 50°F 1939 | -5°F 1947 | 28% | 25% |
| Dec 9 | 32°F | 16°F | 57°F 1939 | -8°F 1947 | 28% | 25% |
| Dec 10 | 32°F | 16°F | 52°F 1939 | -9°F 1948 | 28% | 25% |
| Dec 11 | 31°F | 15°F | 55°F 1949 | -6°F 1945 | 28% | 26% |
| Dec 12 | 31°F | 15°F | 48°F 1939 | -11°F 2000 | 28% | 26% |
| Dec 13 | 30°F | 15°F | 49°F 1998 | -11°F 1940 | 28% | 26% |
| Dec 14 | 30°F | 14°F | 55°F 1998 | -11°F 2025 | 28% | 26% |
| Dec 15 | 30°F | 14°F | 59°F 2021 | -9°F 1945 | 28% | 26% |
| Dec 16 | 29°F | 14°F | 58°F 1939 | -10°F 1951 | 28% | 27% |
| Dec 17 | 29°F | 13°F | 53°F 1939 | -12°F 1945 | 28% | 27% |
| Dec 18 | 29°F | 13°F | 47°F 2011 | -18°F 2016 | 28% | 27% |
| Dec 19 | 28°F | 12°F | 43°F 2006 | -12°F 1945 | 28% | 27% |
| Dec 20 | 28°F | 12°F | 42°F 2023 | -15°F 1996 | 28% | 28% |
| Dec 21 | 28°F | 12°F | 44°F 1941 | -10°F 2008 | 29% | 28% |
| Dec 22 | 28°F | 11°F | 44°F 1941 | -13°F 1945 | 29% | 28% |
| Dec 23 | 27°F | 11°F | 47°F 2023 | -13°F 1951 | 29% | 28% |
| Dec 24 | 27°F | 11°F | 54°F 2023 | -17°F 1951 | 29% | 28% |
| Dec 25 | 27°F | 10°F | 55°F 2023 | -17°F 2000 | 29% | 28% |
| Dec 26 | 27°F | 10°F | 51°F 2011 | -20°F 1950 | 29% | 29% |
| Dec 27 | 26°F | 10°F | 44°F 2003 | -24°F 1950 | 29% | 29% |
| Dec 28 | 26°F | 10°F | 47°F 2024 | -6°F 1938 | 29% | 29% |
| Dec 29 | 26°F | 9°F | 53°F 1999 | -11°F 2013 | 29% | 29% |
| Dec 30 | 26°F | 9°F | 50°F 2004 | -14°F 1946 | 29% | 29% |
| Dec 31 | 25°F | 9°F | 44°F 2004 | -21°F 1946 | 29% | 29% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:29 AM, sunset 4:32 PM
- December 31
- sunrise 7:49 AM, sunset 4:41 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00213567 (Hastings Dam 2), public domain. Records: NOAA GHCN-Daily, station USW00014927, 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.