January weather in Dayton, ID
The average temperature in Dayton in January is 23.8°F (15.3°F–32.3°F). Average precipitation: 1.66 inches. Average snowfall is 13.5 inches.
January is a winter month in Dayton, and is cooler than the annual average of 47°F. Daily temperatures swing about 17°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 15m. For travel, January is cold.
Avg High
32.3°F
Avg Low
15.3°F
Precipitation
1.66 in
Snow
13.5 in
January records in Dayton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 54.0°F (1997) | -9.0°F (2016) | 0.50 in (2010) |
| January 2 | 53.1°F (1997) | -17.0°F (1974) | 1.05 in (1997) |
| January 3 | 50.0°F (2025) | -17.0°F (1974) | 0.41 in (1998) |
| January 4 | 46.9°F (2008) | -13.0°F (1971) | 1.07 in (2017) |
| January 5 | 46.9°F (2012) | -17.0°F (1971) | 0.48 in (2008) |
| January 6 | 46.0°F (1965) | -20.0°F (2017) | 0.74 in (1986) |
| January 7 | 46.0°F (1965) | -18.9°F (1982) | 0.33 in (1992) |
| January 8 | 50.0°F (1999) | -16.1°F (1982) | 0.57 in (2005) |
| January 9 | 48.0°F (1999) | -9.0°F (1987) | 0.61 in (2005) |
| January 10 | 48.9°F (1990) | -14.1°F (1987) | 0.87 in (2023) |
| January 11 | 46.9°F (1995) | -14.1°F (1987) | 0.65 in (2005) |
| January 12 | 50.0°F (1990) | -7.1°F (1968) | 0.32 in (1998) |
| January 13 | 48.9°F (1990) | -11.0°F (2013) | 0.24 in (1973) |
| January 14 | 46.9°F (1990) | -14.1°F (2013) | 0.32 in (1995) |
| January 15 | 46.9°F (2006) | -6.0°F (2007) | 0.44 in (1970) |
| January 16 | 46.0°F (1973) | -7.1°F (2024) | 0.61 in (2011) |
| January 17 | 52.0°F (2000) | -25.1°F (1984) | 0.56 in (1996) |
| January 18 | 46.9°F (2015) | -24.0°F (1984) | 0.64 in (2006) |
| January 19 | 46.9°F (2015) | -25.1°F (1984) | 0.62 in (2010) |
| January 20 | 48.9°F (2000) | -9.0°F (1987) | 0.31 in (1999) |
| January 21 | 48.9°F (2003) | -11.0°F (1987) | 1.03 in (2012) |
| January 22 | 46.0°F (1994) | -9.0°F (1987) | 0.98 in (1969) |
| January 23 | 46.9°F (1972) | -9.9°F (2008) | 1.00 in (2017) |
| January 24 | 54.0°F (1970) | -9.9°F (1985) | 0.26 in (1972) |
| January 25 | 48.9°F (1970) | -18.9°F (1989) | 0.29 in (1984) |
| January 26 | 53.1°F (2015) | -15.0°F (1989) | 0.85 in (1997) |
| January 27 | 48.9°F (1969) | -15.0°F (1989) | 0.48 in (2013) |
| January 28 | 46.0°F (2003) | -13.0°F (1989) | 0.46 in (1968) |
| January 29 | 45.0°F (1967) | -9.9°F (2023) | 0.51 in (1965) |
| January 30 | 50.0°F (2018) | -22.0°F (2023) | 0.55 in (2016) |
| January 31 | 57.9°F (2003) | -24.0°F (2023) | 0.43 in (2008) |