January weather in New Boston, IL
The average temperature in New Boston in January is 23.4°F (15.3°F–31.5°F). Average precipitation: 1.31 inches.
January is a winter month in New Boston, and is cooler than the annual average of 51.2°F. Daily temperatures swing about 16.2°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 9h 21m. For travel, January is cold.
Avg High
31.5°F
Avg Low
15.3°F
Precipitation
1.31 in
Daylight
9h 21m
January records in New Boston
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 54.0°F (2011) | -9.0°F (2001) | 1.10 in (1985) |
| January 2 | 53.1°F (2004) | -18.0°F (2018) | 0.80 in (1965) |
| January 3 | 63.0°F (2004) | -16.1°F (2018) | 0.41 in (1950) |
| January 4 | 60.1°F (1998) | -13.0°F (1947) | 1.53 in (1971) |
| January 5 | 62.1°F (1946) | -20.9°F (1999) | 1.01 in (1946) |
| January 6 | 59.0°F (2012) | -20.9°F (1999) | 0.69 in (2005) |
| January 7 | 60.1°F (2008) | -15.0°F (2014) | 1.28 in (1998) |
| January 8 | 61.0°F (2008) | -11.0°F (1976) | 0.55 in (2019) |
| January 9 | 64.0°F (2003) | -9.9°F (2010) | 1.07 in (1946) |
| January 10 | 57.9°F (2020) | -13.0°F (2010) | 0.70 in (1957) |
| January 11 | 55.9°F (2012) | -7.1°F (2010) | 0.70 in (2020) |
| January 12 | 54.0°F (2012) | 3.9°F (1999) | 1.25 in (1960) |
| January 13 | 55.0°F (2006) | -4.0°F (2015) | 1.49 in (1966) |
| January 14 | 50.0°F (1947) | -16.1°F (2024) | 1.31 in (1979) |
| January 15 | 50.0°F (2016) | -18.9°F (2009) | 0.65 in (1960) |
| January 16 | 48.0°F (2006) | -25.1°F (2009) | 0.81 in (1969) |
| January 17 | 60.1°F (2023) | -20.0°F (2009) | 0.66 in (2017) |
| January 18 | 55.0°F (2025) | -15.0°F (1940) | 1.60 in (2020) |
| January 19 | 52.0°F (2013) | -14.1°F (1943) | 0.92 in (1963) |
| January 20 | 57.0°F (2006) | -9.0°F (1943) | 1.36 in (1995) |
| January 21 | 46.0°F (2018) | -9.9°F (2025) | 0.50 in (1959) |
| January 22 | 53.1°F (2018) | -9.9°F (2025) | 0.74 in (1973) |
| January 23 | 57.0°F (2002) | -9.9°F (2026) | 0.72 in (2024) |
| January 24 | 53.1°F (1947) | -11.9°F (2026) | 1.59 in (1938) |
| January 25 | 50.0°F (1947) | -15.0°F (1943) | 0.53 in (1950) |
| January 26 | 55.9°F (2005) | -11.9°F (2019) | 0.93 in (1967) |
| January 27 | 60.1°F (2002) | -11.9°F (2019) | 1.42 in (1974) |
| January 28 | 61.0°F (2002) | -5.1°F (1940) | 1.08 in (1949) |
| January 29 | 59.0°F (2013) | -5.1°F (2014) | 0.48 in (1938) |
| January 30 | 63.0°F (2013) | -20.9°F (2019) | 1.37 in (2001) |
| January 31 | 59.0°F (2012) | -26.0°F (2019) | 1.00 in (2021) |