January weather in Westfield, IL
The average temperature in Westfield in January is 29.3°F (20.7°F–37.9°F). Average precipitation: 2.54 inches. Average snowfall is 8.1 inches.
January is a winter month in Westfield, and is cooler than the annual average of 55°F. Daily temperatures swing about 17.2°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 31m. For travel, January is cold.
Avg High
37.9°F
Avg Low
20.7°F
Precipitation
2.54 in
Snow
8.1 in
January records in Westfield
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 64.9°F (1952) | -11.9°F (1968) | 1.82 in (1966) |
| January 2 | 64.0°F (2006) | -9.0°F (1928) | 1.35 in (1999) |
| January 3 | 64.9°F (1950) | -14.1°F (1904) | 1.99 in (1897) |
| January 4 | 64.9°F (1997) | -9.0°F (1920) | 2.50 in (1950) |
| January 5 | 60.1°F (1998) | -17.0°F (1999) | 1.49 in (2005) |
| January 6 | 62.1°F (1907) | -11.0°F (2014) | 1.13 in (1962) |
| January 7 | 63.0°F (1907) | -22.0°F (1912) | 1.43 in (1937) |
| January 8 | 63.0°F (1965) | -9.9°F (1970) | 0.75 in (1935) |
| January 9 | 64.9°F (2026) | -8.0°F (1970) | 1.00 in (1901) |
| January 10 | 61.0°F (1975) | -18.9°F (1982) | 2.00 in (2020) |
| January 11 | 63.0°F (2023) | -14.1°F (1977) | 3.75 in (2020) |
| January 12 | 69.1°F (1995) | -20.9°F (1918) | 2.40 in (1916) |
| January 13 | 64.0°F (1950) | -20.9°F (1912) | 1.92 in (1927) |
| January 14 | 66.9°F (1928) | -11.9°F (2024) | 1.34 in (1937) |
| January 15 | 66.0°F (1950) | -20.9°F (1927) | 1.65 in (1962) |
| January 16 | 64.9°F (1990) | -14.1°F (1912) | 0.66 in (1965) |
| January 17 | 70.0°F (1952) | -20.0°F (1977) | 0.60 in (1994) |
| January 18 | 64.0°F (1951) | -20.0°F (1930) | 2.65 in (1949) |
| January 19 | 64.9°F (1907) | -27.0°F (1994) | 0.89 in (1898) |
| January 20 | 69.1°F (1906) | -22.0°F (1985) | 2.00 in (1959) |
| January 21 | 66.9°F (2017) | -18.0°F (1984) | 1.70 in (1906) |
| January 22 | 62.1°F (1964) | -14.1°F (1936) | 1.21 in (1999) |
| January 23 | 71.1°F (1909) | -17.0°F (1936) | 1.82 in (2019) |
| January 24 | 69.1°F (1950) | -24.0°F (1915) | 1.11 in (1996) |
| January 25 | 69.1°F (1950) | -11.9°F (1897) | 0.58 in (1964) |
| January 26 | 69.1°F (1950) | -11.0°F (1897) | 2.18 in (1952) |
| January 27 | 64.9°F (1999) | -17.0°F (1904) | 1.23 in (1949) |
| January 28 | 66.9°F (1914) | -13.0°F (1936) | 1.10 in (1969) |
| January 29 | 63.0°F (1975) | -13.0°F (1977) | 1.63 in (1982) |
| January 30 | 62.1°F (1931) | -11.9°F (1936) | 2.09 in (2013) |
| January 31 | 68.0°F (1989) | -11.9°F (2004) | 1.30 in (1914) |