Keweenaw County Weather in December
Average highs run from 35°F on December 1 to 29°F on December 31, and lows from 25°F to 18°F. Normal precipitation for the month is 1.89 in over about 16 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
- 31°F
- Average low
- 21°F
- Precipitation
- 1.89 in
- Record high
- 64°FDec 1, 1998
- Record low
- -16°FDec 28, 2017
- Chance of a freeze
- 100%
- Daylight
- 8 h 46 min to 8 h 32 min
- Cloud cover
- 87%
- Humidity
- 86%
- Dew point
- 24°F
- Wind
- 17.7 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Dec 1 | 35°F | 25°F | 64°F 1998 | -5°F 1976 | 50% |
| Dec 2 | 35°F | 25°F | 46°F 1951 | -5°F 1976 | 50% |
| Dec 3 | 35°F | 25°F | 51°F 1951 | -4°F 1976 | 51% |
| Dec 4 | 34°F | 25°F | 50°F 2015 | -2°F 1972 | 51% |
| Dec 5 | 34°F | 24°F | 53°F 2015 | -3°F 1991 | 51% |
| Dec 6 | 34°F | 24°F | 43°F 2015 | -3°F 1954 | 51% |
| Dec 7 | 33°F | 24°F | 44°F 2023 | -12°F 1972 | 51% |
| Dec 8 | 33°F | 23°F | 46°F 2023 | -6°F 2010 | 51% |
| Dec 9 | 33°F | 23°F | 45°F 1990 | -1°F 1976 | 51% |
| Dec 10 | 33°F | 23°F | 43°F 2020 | -6°F 2013 | 51% |
| Dec 11 | 32°F | 22°F | 49°F 2011 | -4°F 1977 | 51% |
| Dec 12 | 32°F | 22°F | 47°F 2021 | -6°F 2013 | 51% |
| Dec 13 | 32°F | 22°F | 42°F 1954 | -6°F 2013 | 51% |
| Dec 14 | 32°F | 22°F | 54°F 2023 | -6°F 2007 | 51% |
| Dec 15 | 31°F | 21°F | 49°F 2023 | -9°F 2010 | 51% |
| Dec 16 | 31°F | 21°F | 53°F 2021 | -11°F 2008 | 51% |
| Dec 17 | 31°F | 21°F | 40°F 2023 | -3°F 1964 | 51% |
| Dec 18 | 31°F | 21°F | 43°F 1967 | -9°F 1950 | 51% |
| Dec 19 | 31°F | 20°F | 42°F 2002 | -8°F 2016 | 51% |
| Dec 20 | 30°F | 20°F | 42°F 1967 | -10°F 2008 | 51% |
| Dec 21 | 30°F | 20°F | 46°F 1967 | -10°F 1989 | 51% |
| Dec 22 | 30°F | 20°F | 44°F 2019 | -2°F 1971 | 52% |
| Dec 23 | 30°F | 19°F | 45°F 2023 | -5°F 2000 | 52% |
| Dec 24 | 30°F | 19°F | 49°F 2023 | -12°F 2004 | 51% |
| Dec 25 | 29°F | 19°F | 48°F 2023 | -12°F 2004 | 51% |
| Dec 26 | 29°F | 19°F | 47°F 2011 | -13°F 1996 | 51% |
| Dec 27 | 29°F | 18°F | 43°F 2011 | -7°F 1990 | 51% |
| Dec 28 | 29°F | 18°F | 47°F 2003 | -16°F 2017 | 51% |
| Dec 29 | 29°F | 18°F | 44°F 2010 | -15°F 1976 | 51% |
| Dec 30 | 29°F | 18°F | 38°F 2004 | -9°F 1953 | 51% |
| Dec 31 | 29°F | 18°F | 43°F 2004 | -12°F 1967 | 51% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EST).
- December 1
- sunrise 8:19 AM, sunset 5:05 PM
- December 31
- sunrise 8:40 AM, sunset 5:12 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094899 (Copper Harbor), public domain. Records: NOAA GHCN-Daily, station USW00014858, 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.