January weather in Dayton, OH
The average temperature in Dayton in January is 28.2°F (20.1°F–36.3°F). Average precipitation: 3.17 inches. Average snowfall is 6.9 inches.
January is a winter month in Dayton, and is cooler than the annual average of 53.3°F. Daily temperatures swing about 16.2°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 9h 29m. For travel, January is cold.
Avg High
36.3°F
Avg Low
20.1°F
Precipitation
3.17 in
Snow
6.9 in
January records in Dayton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 66.0°F (2011) | -9.0°F (2018) | 1.22 in (1979) |
| January 2 | 61.0°F (1897) | -9.9°F (2018) | 1.52 in (1965) |
| January 3 | 64.9°F (1897) | -17.0°F (1904) | 1.23 in (1907) |
| January 4 | 63.0°F (1897) | -18.0°F (1904) | 2.50 in (2000) |
| January 5 | 66.0°F (1997) | -15.0°F (1904) | 2.67 in (1949) |
| January 6 | 66.9°F (1946) | -9.0°F (2018) | 1.90 in (2005) |
| January 7 | 64.9°F (1907) | -13.0°F (2014) | 0.78 in (1913) |
| January 8 | 66.9°F (2008) | -8.0°F (2015) | 2.26 in (1998) |
| January 9 | 64.0°F (2008) | -7.1°F (1970) | 1.47 in (2008) |
| January 10 | 59.0°F (1950) | -14.1°F (1982) | 1.20 in (1924) |
| January 11 | 70.0°F (2020) | -14.1°F (1982) | 1.19 in (1980) |
| January 12 | 69.1°F (1916) | -16.1°F (1918) | 1.39 in (1916) |
| January 13 | 69.1°F (2013) | -18.9°F (1912) | 1.17 in (2007) |
| January 14 | 66.0°F (1995) | -4.0°F (1912) | 1.53 in (1937) |
| January 15 | 64.0°F (1950) | -7.1°F (1972) | 1.32 in (2007) |
| January 16 | 60.1°F (1943) | -11.9°F (1972) | 0.94 in (1924) |
| January 17 | 64.0°F (1952) | -18.0°F (1977) | 1.38 in (1937) |
| January 18 | 64.9°F (1949) | -18.0°F (1977) | 1.37 in (1969) |
| January 19 | 69.1°F (1996) | -18.0°F (1994) | 1.28 in (1900) |
| January 20 | 116.1°F (1940) | -20.9°F (1985) | 2.00 in (1937) |
| January 21 | 75.0°F (1906) | -20.9°F (1985) | 2.32 in (1959) |
| January 22 | 66.9°F (1906) | -13.0°F (1984) | 2.93 in (1959) |
| January 23 | 66.0°F (1999) | -16.1°F (1936) | 1.51 in (1982) |
| January 24 | 70.0°F (1943) | -15.0°F (1936) | 1.65 in (1937) |
| January 25 | 72.0°F (1950) | -11.9°F (1897) | 0.66 in (2023) |
| January 26 | 66.9°F (1950) | -11.0°F (1897) | 1.35 in (1978) |
| January 27 | 68.0°F (1916) | -8.0°F (1936) | 2.89 in (1952) |
| January 28 | 68.0°F (1914) | -11.0°F (2014) | 1.25 in (1994) |
| January 29 | 68.0°F (1914) | -9.0°F (1977) | 1.07 in (1939) |
| January 30 | 69.1°F (2013) | -8.0°F (1897) | 1.03 in (1969) |
| January 31 | 66.9°F (1916) | -9.9°F (2019) | 2.03 in (1982) |