January weather in Union, IL
The average temperature in Union in January is 20.9°F (12.7°F–29.2°F). Average precipitation: 1.67 inches. Average snowfall is 8.0 inches.
January is a winter month in Union, and is cooler than the annual average of 48.2°F. Daily temperatures swing about 16.5°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 9h 14m. For travel, January is cold.
Avg High
29.2°F
Avg Low
12.7°F
Precipitation
1.67 in
Snow
8.0 in
January records in Union
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 55.9°F (1897) | -16.1°F (1968) | 1.15 in (1979) |
| January 2 | 55.0°F (1897) | -20.0°F (1979) | 1.51 in (1897) |
| January 3 | 57.0°F (2004) | -20.9°F (2014) | 1.28 in (1897) |
| January 4 | 57.0°F (1998) | -22.0°F (1919) | 2.90 in (2000) |
| January 5 | 61.0°F (1997) | -24.0°F (1924) | 0.91 in (1929) |
| January 6 | 50.0°F (1933) | -20.0°F (1924) | 0.80 in (1962) |
| January 7 | 53.1°F (2012) | -20.9°F (1910) | 0.80 in (1962) |
| January 8 | 57.9°F (1933) | -20.0°F (1942) | 1.15 in (1937) |
| January 9 | 54.0°F (1939) | -18.0°F (1986) | 0.76 in (1946) |
| January 10 | 55.9°F (1975) | -25.1°F (1982) | 1.18 in (1975) |
| January 11 | 55.9°F (1975) | -29.0°F (1979) | 1.35 in (2013) |
| January 12 | 57.0°F (2012) | -18.9°F (1912) | 2.40 in (1960) |
| January 13 | 55.0°F (2006) | -16.1°F (1929) | 0.81 in (1950) |
| January 14 | 54.0°F (1928) | -17.0°F (1929) | 1.21 in (1995) |
| January 15 | 54.0°F (1953) | -22.0°F (1979) | 0.80 in (1960) |
| January 16 | 53.1°F (1990) | -25.1°F (2009) | 0.75 in (1969) |
| January 17 | 57.0°F (1894) | -26.0°F (2009) | 1.42 in (2017) |
| January 18 | 55.9°F (1996) | -25.1°F (1930) | 0.78 in (1933) |
| January 19 | 59.0°F (1996) | -17.0°F (1940) | 1.48 in (1907) |
| January 20 | 59.0°F (1906) | -27.9°F (1985) | 1.54 in (1988) |
| January 21 | 54.0°F (1906) | -27.0°F (1985) | 0.89 in (1916) |
| January 22 | 57.9°F (1957) | -23.1°F (1936) | 1.52 in (2018) |
| January 23 | 59.0°F (1909) | -25.1°F (1936) | 1.00 in (1909) |
| January 24 | 62.1°F (1967) | -23.1°F (1936) | 2.96 in (1938) |
| January 25 | 62.1°F (1950) | -24.0°F (1897) | 1.44 in (1898) |
| January 26 | 61.0°F (1944) | -22.0°F (1897) | 0.80 in (1978) |
| January 27 | 57.9°F (1944) | -18.0°F (1955) | 0.78 in (1944) |
| January 28 | 53.1°F (1944) | -26.0°F (1963) | 0.98 in (1974) |
| January 29 | 55.9°F (2013) | -22.0°F (1966) | 0.74 in (1909) |
| January 30 | 60.1°F (2013) | -25.1°F (1951) | 1.53 in (1947) |
| January 31 | 51.1°F (1988) | -18.0°F (1899) | 0.39 in (1951) |