April weather in McHenry, IL
The average temperature in McHenry in April is 47.7°F (36.6°F–58.8°F). Average precipitation: 3.63 inches. Average snowfall is 1.0 inches.
April is a spring month in McHenry, and is cooler than the annual average of 48.6°F. Daily temperatures swing about 22.2°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 13h 10m. For travel, April is cool.
Avg High
58.8°F
Avg Low
36.6°F
Precipitation
3.63 in
Snow
1.0 in
April records in McHenry
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 78.1°F (2010) | 19.9°F (2011) | 0.72 in (2008) |
| April 2 | 82.9°F (2010) | 17.1°F (2021) | 1.67 in (1983) |
| April 3 | 80.1°F (2010) | 19.0°F (2013) | 1.40 in (2026) |
| April 4 | 75.9°F (1999) | 18.0°F (1995) | 0.47 in (2017) |
| April 5 | 75.0°F (2021) | 14.0°F (1995) | 0.95 in (2022) |
| April 6 | 77.0°F (2021) | 18.0°F (1996) | 1.46 in (1988) |
| April 7 | 82.9°F (2021) | 17.1°F (2018) | 0.41 in (1980) |
| April 8 | 82.9°F (2021) | 14.0°F (2018) | 0.83 in (1998) |
| April 9 | 75.9°F (2001) | 15.1°F (1997) | 1.10 in (2015) |
| April 10 | 75.9°F (2017) | 19.0°F (1997) | 1.54 in (2015) |
| April 11 | 82.9°F (2011) | 27.0°F (2004) | 1.15 in (2008) |
| April 12 | 81.0°F (1996) | 26.1°F (2000) | 1.23 in (1979) |
| April 13 | 82.9°F (2023) | 26.1°F (2004) | 1.00 in (2026) |
| April 14 | 84.9°F (2023) | 25.0°F (2020) | 0.93 in (2022) |
| April 15 | 84.9°F (2003) | 21.0°F (2014) | 2.56 in (2012) |
| April 16 | 88.0°F (2002) | 19.9°F (2020) | 2.01 in (1998) |
| April 17 | 88.0°F (2002) | 23.0°F (1996) | 0.60 in (2024) |
| April 18 | 84.0°F (2002) | 23.0°F (1997) | 3.81 in (2013) |
| April 19 | 90.0°F (2002) | 27.0°F (2018) | 0.66 in (2002) |
| April 20 | 80.1°F (2005) | 24.1°F (2018) | 1.56 in (2000) |
| April 21 | 78.1°F (2001) | 28.0°F (2011) | 1.17 in (2000) |
| April 22 | 82.9°F (2001) | 23.0°F (2021) | 0.87 in (1987) |
| April 23 | 84.0°F (2019) | 27.0°F (2003) | 1.88 in (1950) |
| April 24 | 82.9°F (2022) | 25.0°F (2015) | 1.40 in (1950) |
| April 25 | 82.0°F (1994) | 28.0°F (2024) | 1.70 in (1976) |
| April 26 | 84.9°F (1994) | 25.0°F (2006) | 1.25 in (1979) |
| April 27 | 84.9°F (1994) | 28.0°F (2012) | 1.84 in (1995) |
| April 28 | 87.1°F (2021) | 27.0°F (2019) | 1.03 in (1999) |
| April 29 | 84.9°F (2025) | 25.0°F (2018) | 1.23 in (2020) |
| April 30 | 82.9°F (2007) | 27.0°F (2008) | 1.37 in (2020) |