January weather in Round Lake Heights, IL
The average temperature in Round Lake Heights in January is 22.2°F (14.6°F–29.9°F). Average precipitation: 2.07 inches. Average snowfall is 15.7 inches.
January is a winter month in Round Lake Heights, and is cooler than the annual average of 48.6°F. Daily temperatures swing about 15.3°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 9h 14m. For travel, January is cold.
Avg High
29.9°F
Avg Low
14.6°F
Precipitation
2.07 in
Snow
15.7 in
January records in Round Lake Heights
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 48.9°F (2004) | -5.1°F (1988) | 0.12 in (1987) |
| January 2 | 57.0°F (2000) | 0.0°F (1991) | 1.07 in (1999) |
| January 3 | 54.0°F (1998) | -9.0°F (1991) | 0.37 in (2000) |
| January 4 | 60.1°F (1997) | -13.0°F (1988) | 0.78 in (1993) |
| January 5 | 54.0°F (1998) | -18.0°F (1999) | 0.45 in (1991) |
| January 6 | 42.1°F (1998) | -17.0°F (1988) | 0.53 in (1998) |
| January 7 | 46.9°F (1989) | -14.1°F (1999) | 0.10 in (1993) |
| January 8 | 51.1°F (2003) | -11.0°F (1994) | 1.15 in (1998) |
| January 9 | 54.0°F (2002) | -11.0°F (1988) | 0.55 in (1997) |
| January 10 | 44.1°F (2000) | -13.0°F (1988) | 0.25 in (1993) |
| January 11 | 44.1°F (1992) | -8.0°F (1999) | 0.66 in (1991) |
| January 12 | 44.1°F (1995) | -9.0°F (1997) | 0.72 in (1993) |
| January 13 | 46.0°F (1996) | -5.1°F (1994) | 0.72 in (1993) |
| January 14 | 44.1°F (1996) | -17.0°F (1994) | 0.73 in (1995) |
| January 15 | 52.0°F (1990) | -22.0°F (1994) | 0.51 in (1997) |
| January 16 | 53.1°F (1990) | -20.0°F (1994) | 0.23 in (2002) |
| January 17 | 54.0°F (1996) | -18.0°F (1994) | 0.69 in (1988) |
| January 18 | 59.0°F (1996) | -26.0°F (1994) | 0.45 in (1996) |
| January 19 | 46.9°F (1989) | -23.1°F (1994) | 1.05 in (1988) |
| January 20 | 41.0°F (1997) | -13.0°F (1994) | 0.16 in (1990) |
| January 21 | 45.0°F (1997) | -7.1°F (1994) | 0.68 in (1999) |
| January 22 | 53.1°F (2002) | -6.0°F (1991) | 0.75 in (1999) |
| January 23 | 48.9°F (1989) | -7.1°F (2003) | 0.85 in (1999) |
| January 24 | 44.1°F (1990) | -5.1°F (2000) | 0.36 in (1997) |
| January 25 | 48.9°F (2002) | -6.0°F (1991) | 1.45 in (1990) |
| January 26 | 50.0°F (2002) | -6.0°F (1997) | 0.44 in (1996) |
| January 27 | 57.9°F (2002) | -8.0°F (1988) | 1.00 in (1994) |
| January 28 | 46.9°F (1989) | -9.0°F (1997) | 0.13 in (2003) |
| January 29 | 46.9°F (1988) | -7.1°F (1997) | 0.82 in (2001) |
| January 30 | 53.1°F (1988) | -11.0°F (2004) | 0.30 in (2002) |
| January 31 | 62.1°F (1989) | -17.0°F (1996) | 0.61 in (2002) |