Mason County Weather in January
Average highs run from 30°F on January 1 to 30°F on January 31, and lows from 19°F to 16°F.
January day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
January at a glance
- Average high
- 29°F
- Average low
- 17°F
- Snowfall
- 26.4 in
- Record high
- 59°FJan 27, 1916
- Record low
- -16°FJan 12, 1912
- Chance of a freeze
- 100%
- Daylight
- 8 h 59 min to 9 h 51 min
- Cloud cover
- 83%
- Humidity
- 89%
- Dew point
- 21°F
- Wind
- 12.8 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 |
|---|---|---|---|---|---|---|
| Jan 1 | 30°F | 19°F | 56°F 1897 | -15°F 1947 | 36% | |
| Jan 2 | 30°F | 19°F | 56°F 1897 | -5°F 1908 | 36% | |
| Jan 3 | 30°F | 18°F | 54°F 1897 | -12°F 1918 | 37% | |
| Jan 4 | 30°F | 18°F | 47°F 2007 | -1°F 1910 | 37% | |
| Jan 5 | 30°F | 18°F | 51°F 1946 | -5°F 1912 | 38% | |
| Jan 6 | 29°F | 18°F | 51°F 1946 | -5°F 1942 | 38% | |
| Jan 7 | 29°F | 18°F | 57°F 2008 | -8°F 1942 | 38% | |
| Jan 8 | 29°F | 18°F | 53°F 2008 | -9°F 1943 | 38% | |
| Jan 9 | 29°F | 18°F | 58°F 2026 | -4°F 1974 | 39% | |
| Jan 10 | 29°F | 17°F | 55°F 1939 | -7°F 1982 | 39% | |
| Jan 11 | 29°F | 17°F | 54°F 2018 | -1°F 1912 | 39% | |
| Jan 12 | 29°F | 17°F | 53°F 2012 | -16°F 1912 | 39% | |
| Jan 13 | 29°F | 17°F | 50°F 1932 | -6°F 2015 | 39% | |
| Jan 14 | 29°F | 17°F | 48°F 1932 | -6°F 1982 | 40% | |
| Jan 15 | 29°F | 17°F | 57°F 1949 | -11°F 1982 | 40% | |
| Jan 16 | 29°F | 17°F | 52°F 1949 | -10°F 1977 | 40% | |
| Jan 17 | 29°F | 17°F | 52°F 1913 | -11°F 1982 | 40% | |
| Jan 18 | 29°F | 16°F | 56°F 1996 | -10°F 1994 | 40% | |
| Jan 19 | 29°F | 16°F | 52°F 1973 | -8°F 1994 | 40% | |
| Jan 20 | 29°F | 16°F | 45°F 1907 | -4°F 1918 | 40% | |
| Jan 21 | 29°F | 16°F | 54°F 1934 | -10°F 1912 | 41% | |
| Jan 22 | 29°F | 16°F | 50°F 2002 | -5°F 1982 | 41% | |
| Jan 23 | 29°F | 16°F | 50°F 1989 | -5°F 1963 | 41% | |
| Jan 24 | 29°F | 16°F | 58°F 1950 | -16°F 1948 | 41% | |
| Jan 25 | 29°F | 16°F | 51°F 1909 | -10°F 1959 | 40% | |
| Jan 26 | 29°F | 16°F | 56°F 1944 | -16°F 1959 | 40% | |
| Jan 27 | 29°F | 16°F | 59°F 1916 | -12°F 1925 | 40% | |
| Jan 28 | 29°F | 16°F | 52°F 2002 | -15°F 1912 | 40% | |
| Jan 29 | 29°F | 16°F | 56°F 1914 | -16°F 1966 | 40% | |
| Jan 30 | 29°F | 16°F | 52°F 2013 | -9°F 1908 | 39% | |
| Jan 31 | 30°F | 16°F | 51°F 1988 | -12°F 1918 | 39% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 8:20 AM, sunset 5:19 PM
- January 31
- sunrise 8:04 AM, sunset 5:55 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00204954 (Ludington 4 Se), public domain. Records: NOAA GHCN-Daily, station USC00205065, 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.