Dayton Weather in January
Average highs run from 43°F on January 1 to 43°F on January 31, and lows from 24°F to 22°F. Normal precipitation for the month is 2.71 in over about 10 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
- 42°F
- Average low
- 23°F
- Precipitation
- 2.71 in
- Snowfall
- 4.2 in
- Record high
- 78°FJan 13, 1932
- Record low
- -25°FJan 14, 1912
- Chance of a freeze
- 100%
- Daylight
- 9 h 33 min to 10 h 15 min
- Cloud cover
- 63%
- Humidity
- 83%
- Dew point
- 24°F
- Wind
- 6.9 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 | 43°F | 24°F | 74°F 1952 | -3°F 1918 | 33% | 7% |
| Jan 2 | 43°F | 24°F | 70°F 1916 | -11°F 1899 | 33% | 7% |
| Jan 3 | 42°F | 24°F | 68°F 1910 | -8°F 1918 | 33% | 7% |
| Jan 4 | 42°F | 24°F | 73°F 2004 | -10°F 1918 | 33% | 7% |
| Jan 5 | 42°F | 24°F | 70°F 2004 | -6°F 1919 | 33% | 8% |
| Jan 6 | 42°F | 24°F | 70°F 1950 | -6°F 1912 | 33% | 8% |
| Jan 7 | 42°F | 23°F | 71°F 1907 | -4°F 2018 | 33% | 8% |
| Jan 8 | 42°F | 23°F | 70°F 1907 | -11°F 1916 | 33% | 8% |
| Jan 9 | 42°F | 23°F | 72°F 1930 | -10°F 1916 | 33% | 8% |
| Jan 10 | 42°F | 23°F | 69°F 1950 | -6°F 1982 | 32% | 8% |
| Jan 11 | 42°F | 23°F | 70°F 1913 | -9°F 1893 | 32% | 8% |
| Jan 12 | 42°F | 23°F | 69°F 1911 | 0°F 1968 | 32% | 8% |
| Jan 13 | 42°F | 23°F | 78°F 1932 | -14°F 1912 | 32% | 8% |
| Jan 14 | 42°F | 23°F | 77°F 1932 | -25°F 1912 | 32% | 8% |
| Jan 15 | 42°F | 23°F | 74°F 1932 | -5°F 1893 | 32% | 8% |
| Jan 16 | 42°F | 23°F | 73°F 1932 | -16°F 1893 | 32% | 9% |
| Jan 17 | 42°F | 23°F | 74°F 1943 | -9°F 1982 | 32% | 9% |
| Jan 18 | 42°F | 22°F | 71°F 1990 | -11°F 1893 | 32% | 9% |
| Jan 19 | 42°F | 22°F | 66°F 1951 | -12°F 1930 | 31% | 9% |
| Jan 20 | 42°F | 22°F | 65°F 1951 | -13°F 1930 | 31% | 9% |
| Jan 21 | 42°F | 22°F | 70°F 1906 | -11°F 1918 | 31% | 9% |
| Jan 22 | 42°F | 22°F | 74°F 1927 | -8°F 1984 | 31% | 9% |
| Jan 23 | 42°F | 22°F | 70°F 1967 | -7°F 1936 | 31% | 9% |
| Jan 24 | 42°F | 22°F | 70°F 1909 | -4°F 1935 | 31% | 9% |
| Jan 25 | 42°F | 22°F | 75°F 1943 | -13°F 1935 | 31% | 9% |
| Jan 26 | 42°F | 22°F | 76°F 1950 | -6°F 1940 | 31% | 10% |
| Jan 27 | 43°F | 22°F | 70°F 1944 | -11°F 1940 | 31% | 10% |
| Jan 28 | 43°F | 22°F | 71°F 1944 | -14°F 1935 | 31% | 10% |
| Jan 29 | 43°F | 22°F | 72°F 1975 | -6°F 1963 | 31% | 10% |
| Jan 30 | 43°F | 22°F | 74°F 2002 | -6°F 1904 | 31% | 10% |
| Jan 31 | 43°F | 22°F | 78°F 2002 | -7°F 1965 | 30% | 10% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:33 AM, sunset 5:06 PM
- January 31
- sunrise 7:22 AM, sunset 5:37 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00442208 (Dale Enterprise), public domain. Records: NOAA GHCN-Daily, station USC00442208, 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.