Dayton Weather in January
Average highs run from 29°F on January 1 to 29°F on January 31, and lows from 11°F to 9°F. Normal precipitation for the month is 1.20 in over about 9 wet days.
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
- 28°F
- Average low
- 9°F
- Precipitation
- 1.20 in
- Snowfall
- 9.9 in
- Record high
- 72°FJan 27, 2002
- Record low
- -33°FJan 22, 1930
- Chance of a freeze
- 100%
- Daylight
- 9 h 10 min to 9 h 58 min
- Cloud cover
- 64%
- Humidity
- 87%
- Dew point
- 14°F
- Wind
- 12.3 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 | 29°F | 11°F | 56°F 1897 | -26°F 1924 | 29% | 19% |
| Jan 2 | 29°F | 11°F | 51°F 1939 | -28°F 2018 | 29% | 19% |
| Jan 3 | 29°F | 11°F | 52°F 1998 | -24°F 1924 | 29% | 19% |
| Jan 4 | 29°F | 11°F | 50°F 1916 | -29°F 1947 | 29% | 19% |
| Jan 5 | 29°F | 10°F | 56°F 1956 | -30°F 1924 | 29% | 19% |
| Jan 6 | 28°F | 10°F | 63°F 2012 | -31°F 1910 | 29% | 19% |
| Jan 7 | 28°F | 10°F | 52°F 1990 | -26°F 1942 | 29% | 19% |
| Jan 8 | 28°F | 10°F | 60°F 2003 | -22°F 1942 | 29% | 20% |
| Jan 9 | 28°F | 10°F | 61°F 2002 | -26°F 1910 | 29% | 20% |
| Jan 10 | 28°F | 9°F | 60°F 1928 | -26°F 1937 | 29% | 20% |
| Jan 11 | 28°F | 9°F | 57°F 2012 | -21°F 1977 | 29% | 20% |
| Jan 12 | 28°F | 9°F | 55°F 1928 | -27°F 1974 | 29% | 20% |
| Jan 13 | 28°F | 9°F | 58°F 1996 | -26°F 1916 | 29% | 20% |
| Jan 14 | 28°F | 9°F | 50°F 1914 | -26°F 1916 | 29% | 20% |
| Jan 15 | 28°F | 9°F | 59°F 1990 | -25°F 1929 | 29% | 20% |
| Jan 16 | 28°F | 9°F | 56°F 1990 | -28°F 2009 | 29% | 21% |
| Jan 17 | 28°F | 9°F | 52°F 1996 | -25°F 1930 | 29% | 21% |
| Jan 18 | 28°F | 8°F | 54°F 1944 | -31°F 1930 | 29% | 21% |
| Jan 19 | 28°F | 8°F | 51°F 1981 | -26°F 1970 | 29% | 21% |
| Jan 20 | 28°F | 8°F | 54°F 1944 | -30°F 1936 | 29% | 21% |
| Jan 21 | 28°F | 8°F | 50°F 1921 | -29°F 1970 | 29% | 21% |
| Jan 22 | 28°F | 8°F | 52°F 1989 | -33°F 1930 | 29% | 21% |
| Jan 23 | 28°F | 8°F | 56°F 2002 | -22°F 1935 | 29% | 21% |
| Jan 24 | 28°F | 8°F | 62°F 1981 | -22°F 1894 | 30% | 21% |
| Jan 25 | 28°F | 8°F | 63°F 1944 | -28°F 1936 | 30% | 21% |
| Jan 26 | 28°F | 8°F | 59°F 2002 | -23°F 1930 | 30% | 21% |
| Jan 27 | 28°F | 8°F | 72°F 2002 | -20°F 1950 | 30% | 21% |
| Jan 28 | 29°F | 9°F | 58°F 2002 | -30°F 1915 | 30% | 21% |
| Jan 29 | 29°F | 9°F | 56°F 2025 | -23°F 1966 | 30% | 21% |
| Jan 30 | 29°F | 9°F | 53°F 1931 | -25°F 2019 | 30% | 21% |
| Jan 31 | 29°F | 9°F | 60°F 2025 | -28°F 1918 | 30% | 21% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- January 1
- sunrise 7:45 AM, sunset 4:55 PM
- January 31
- sunrise 7:31 AM, sunset 5:29 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00130807 (Boone), public domain. Records: NOAA GHCN-Daily, station USC00138806, 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.