January weather in Crystal Lake, IL
The average temperature in Crystal Lake in January is 22.9°F (14.2°F–31.5°F). Average precipitation: 1.97 inches. Average snowfall is 10.0 inches.
January is a winter month in Crystal Lake, and is cooler than the annual average of 49.2°F. Daily temperatures swing about 17.3°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 9h 14m. For travel, January is cold.
Avg High
31.5°F
Avg Low
14.2°F
Precipitation
1.97 in
Snow
10.0 in
January records in Crystal Lake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 53.1°F (2011) | -11.0°F (2018) | 0.66 in (2012) |
| January 2 | 39.0°F (2020) | -11.9°F (2018) | 0.76 in (2021) |
| January 3 | 46.0°F (2020) | -9.9°F (2018) | 0.63 in (1999) |
| January 4 | 50.0°F (2015) | -9.9°F (2014) | 0.60 in (1993) |
| January 5 | 43.0°F (2019) | -5.1°F (2015) | 0.34 in (1998) |
| January 6 | 46.9°F (2019) | -16.1°F (2014) | 0.90 in (2015) |
| January 7 | 55.0°F (2012) | -18.9°F (2014) | 0.80 in (1998) |
| January 8 | 51.1°F (2019) | -13.0°F (2014) | 0.57 in (2019) |
| January 9 | 57.0°F (2026) | -7.1°F (2014) | 0.58 in (1998) |
| January 10 | 48.0°F (2012) | -4.0°F (2015) | 0.49 in (2024) |
| January 11 | 52.0°F (2018) | -2.9°F (2015) | 1.00 in (2013) |
| January 12 | 54.0°F (2018) | -2.9°F (2016) | 0.44 in (2024) |
| January 13 | 48.9°F (2013) | -2.0°F (2016) | 0.92 in (1993) |
| January 14 | 48.9°F (2026) | -11.0°F (2024) | 1.55 in (1995) |
| January 15 | 42.1°F (2021) | -16.1°F (2024) | 0.38 in (2007) |
| January 16 | 42.1°F (2023) | -14.1°F (2024) | 0.33 in (1997) |
| January 17 | 46.9°F (2023) | -9.9°F (2024) | 1.45 in (2017) |
| January 18 | 44.1°F (2015) | -5.1°F (2016) | 0.41 in (1996) |
| January 19 | 42.1°F (2013) | -5.1°F (2016) | 0.47 in (2019) |
| January 20 | 44.1°F (2013) | -4.0°F (2026) | 0.56 in (1995) |
| January 21 | 46.0°F (2017) | -7.1°F (2011) | 0.68 in (2006) |
| January 22 | 55.0°F (2017) | -8.0°F (2011) | 1.22 in (1999) |
| January 23 | 42.1°F (2012) | -4.0°F (2014) | 0.54 in (1999) |
| January 24 | 42.1°F (2017) | -8.0°F (2014) | 0.42 in (1999) |
| January 25 | 42.1°F (2015) | -8.0°F (2019) | 0.46 in (2020) |
| January 26 | 43.0°F (2024) | 5.0°F (2014) | 0.38 in (2024) |
| January 27 | 41.0°F (2012) | -2.9°F (2014) | 0.52 in (1994) |
| January 28 | 52.0°F (2018) | -15.0°F (2019) | 0.46 in (1994) |
| January 29 | 55.0°F (2013) | -13.0°F (2014) | 0.91 in (2006) |
| January 30 | 59.0°F (2013) | -24.0°F (2019) | 1.57 in (2013) |
| January 31 | 51.1°F (2025) | -27.9°F (2019) | 0.63 in (2021) |