February weather in Grafton, IL
The average temperature in Grafton in February is 35.4°F (25.6°F–45.1°F). Average precipitation: 1.89 inches.
February is a winter month in Grafton, and is cooler than the annual average of 56.1°F. Daily temperatures swing about 19.5°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 10h 32m. For travel, February is cool.
Avg High
45.1°F
Avg Low
25.6°F
Precipitation
1.89 in
Daylight
10h 32m
February records in Grafton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| February 1 | 68.0°F (2024) | -6.0°F (2026) | 1.15 in (2014) |
| February 2 | 66.0°F (2020) | 3.9°F (2001) | 0.56 in (2004) |
| February 3 | 72.0°F (2025) | 0.1°F (2011) | 1.17 in (2012) |
| February 4 | 66.9°F (2008) | 1.2°F (2007) | 0.22 in (2012) |
| February 5 | 57.9°F (1999) | 0.1°F (2022) | 2.43 in (2008) |
| February 6 | 64.0°F (2009) | -5.8°F (2014) | 0.78 in (1999) |
| February 7 | 69.1°F (2009) | -11.7°F (2014) | 1.37 in (1999) |
| February 8 | 69.1°F (2001) | 7.2°F (2011) | 0.15 in (2005) |
| February 9 | 69.1°F (2000) | 9.1°F (2010) | 0.48 in (2001) |
| February 10 | 69.1°F (2009) | 2.1°F (2011) | 0.44 in (2013) |
| February 11 | 72.0°F (1999) | -6.9°F (2014) | 0.84 in (2009) |
| February 12 | 57.0°F (2005) | -1.8°F (2014) | 0.37 in (2007) |
| February 13 | 99.0°F (2021) | 4.1°F (2014) | 1.03 in (2005) |
| February 14 | 66.9°F (2006) | 4.1°F (2020) | 0.80 in (2026) |
| February 15 | 79.0°F (2018) | 5.2°F (2007) | 0.60 in (2003) |
| February 16 | 73.9°F (2006) | 0.1°F (2015) | 0.47 in (2008) |
| February 17 | 73.9°F (2017) | 2.1°F (2015) | 0.71 in (2014) |
| February 18 | 72.0°F (2026) | 3.2°F (2015) | 1.14 in (2000) |
| February 19 | 73.9°F (2016) | -4.9°F (2015) | 0.85 in (2002) |
| February 20 | 79.0°F (2017) | -0.8°F (2025) | 1.29 in (2018) |
| February 21 | 72.0°F (2024) | -0.8°F (2025) | 1.12 in (2010) |
| February 22 | 72.0°F (2000) | 11.1°F (2015) | 0.09 in (2018) |
| February 23 | 70.0°F (2017) | 2.1°F (2015) | 0.36 in (2004) |
| February 24 | 80.1°F (2000) | -2.7°F (2015) | 2.16 in (2001) |
| February 25 | 75.0°F (2000) | 3.9°F (2003) | 0.26 in (2000) |
| February 26 | 80.1°F (2024) | 7.2°F (2015) | 0.82 in (2013) |
| February 27 | 86.0°F (2024) | -2.7°F (2015) | 0.37 in (2011) |
| February 28 | 73.9°F (2017) | 12.2°F (2015) | 0.84 in (2021) |
| February 29 | 68.0°F (2000) | 17.2°F (2024) | 0.05 in (2000) |