Mercer County Weather in January
Average highs run from 36°F on January 1 to 35°F on January 31, and lows from 18°F to 15°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
- 35°F
- Average low
- 16°F
- Snowfall
- 18.6 in
- Record high
- 75°FJan 25, 1950
- Record low
- -27°FJan 19, 1994
- Chance of a freeze
- 100%
- Daylight
- 9 h 16 min to 10 h 03 min
- Cloud cover
- 79%
- Humidity
- 90%
- Dew point
- 22°F
- Wind
- 7.4 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 | 36°F | 18°F | 65°F 1924 | -8°F 1918 | 29% | |
| Jan 2 | 36°F | 18°F | 68°F 1985 | -5°F 1945 | 29% | |
| Jan 3 | 36°F | 18°F | 66°F 2000 | -17°F 1904 | 29% | |
| Jan 4 | 36°F | 18°F | 65°F 1950 | -13°F 1918 | 30% | |
| Jan 5 | 36°F | 17°F | 67°F 1997 | -20°F 1904 | 30% | |
| Jan 6 | 36°F | 17°F | 68°F 1946 | -5°F 1912 | 30% | |
| Jan 7 | 35°F | 17°F | 68°F 1946 | -5°F 1912 | 30% | |
| Jan 8 | 35°F | 17°F | 66°F 2008 | -11°F 1912 | 31% | |
| Jan 9 | 35°F | 17°F | 70°F 2008 | -7°F 1981 | 31% | |
| Jan 10 | 35°F | 17°F | 67°F 1937 | -6°F 1962 | 31% | |
| Jan 11 | 35°F | 16°F | 57°F 1935 | -13°F 1979 | 31% | |
| Jan 12 | 35°F | 16°F | 68°F 2020 | -5°F 1968 | 32% | |
| Jan 13 | 35°F | 16°F | 67°F 1972 | -25°F 1912 | 32% | |
| Jan 14 | 35°F | 16°F | 70°F 2005 | -14°F 1964 | 32% | |
| Jan 15 | 35°F | 16°F | 66°F 1932 | -12°F 1964 | 32% | |
| Jan 16 | 34°F | 16°F | 72°F 1932 | -16°F 1929 | 32% | |
| Jan 17 | 34°F | 16°F | 62°F 1932 | -19°F 1965 | 32% | |
| Jan 18 | 34°F | 16°F | 61°F 1973 | -12°F 2009 | 32% | |
| Jan 19 | 34°F | 16°F | 63°F 1951 | -27°F 1994 | 33% | |
| Jan 20 | 34°F | 15°F | 66°F 1951 | -25°F 1994 | 33% | |
| Jan 21 | 34°F | 15°F | 72°F 1906 | -25°F 1918 | 33% | |
| Jan 22 | 34°F | 15°F | 70°F 1906 | -21°F 1918 | 33% | |
| Jan 23 | 34°F | 15°F | 64°F 1935 | -15°F 1977 | 33% | |
| Jan 24 | 34°F | 15°F | 68°F 1933 | -19°F 1963 | 33% | |
| Jan 25 | 35°F | 15°F | 75°F 1950 | -16°F 1961 | 32% | |
| Jan 26 | 35°F | 15°F | 68°F 1950 | -15°F 1948 | 32% | |
| Jan 27 | 35°F | 15°F | 67°F 1916 | -20°F 2003 | 32% | |
| Jan 28 | 35°F | 15°F | 62°F 2002 | -20°F 2003 | 32% | |
| Jan 29 | 35°F | 15°F | 69°F 1914 | -23°F 1963 | 32% | |
| Jan 30 | 35°F | 15°F | 64°F 2002 | -11°F 1915 | 32% | |
| Jan 31 | 35°F | 15°F | 63°F 2013 | -16°F 1948 | 31% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:47 AM, sunset 5:03 PM
- January 31
- sunrise 7:33 AM, sunset 5:36 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00365651 (Mercer), public domain. Records: NOAA GHCN-Daily, station USC00366233, 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.