McHenry County Weather in February
Average highs run from 20°F on February 1 to 28°F on February 28, and lows from -4°F to 4°F. Normal precipitation for the month is 0.48 in over about 4 wet days.
February day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
February at a glance
- Average high
- 23°F
- Average low
- -1°F
- Precipitation
- 0.48 in
- Snowfall
- 6.9 in
- Record high
- 66°FFeb 25, 1958
- Record low
- -34°FFeb 1, 1996
- Chance of a freeze
- 100%
- Daylight
- 9 h 31 min to 11 h 00 min
- Cloud cover
- 63%
- Humidity
- 84%
- Dew point
- 11°F
- Wind
- 11.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Feb 1 | 20°F | -4°F | 60°F 1992 | -34°F 1996 | 11% | 10% |
| Feb 2 | 20°F | -4°F | 46°F 1992 | -30°F 1989 | 11% | 10% |
| Feb 3 | 20°F | -4°F | 48°F 1973 | -29°F 1989 | 11% | 10% |
| Feb 4 | 20°F | -4°F | 47°F 1992 | -22°F 1979 | 11% | 10% |
| Feb 5 | 21°F | -4°F | 58°F 1963 | -22°F 1982 | 11% | 10% |
| Feb 6 | 21°F | -4°F | 51°F 2016 | -22°F 1994 | 12% | 10% |
| Feb 7 | 21°F | -3°F | 59°F 1963 | -24°F 1994 | 12% | 10% |
| Feb 8 | 21°F | -3°F | 53°F 2000 | -28°F 2019 | 12% | 10% |
| Feb 9 | 22°F | -3°F | 47°F 1996 | -27°F 1994 | 12% | 10% |
| Feb 10 | 22°F | -3°F | 49°F 1961 | -25°F 1955 | 12% | 10% |
| Feb 11 | 22°F | -2°F | 48°F 1987 | -21°F 1955 | 12% | 10% |
| Feb 12 | 22°F | -2°F | 49°F 2026 | -24°F 2021 | 12% | 10% |
| Feb 13 | 23°F | -2°F | 51°F 2026 | -29°F 2021 | 12% | 10% |
| Feb 14 | 23°F | -2°F | 44°F 1998 | -27°F 2021 | 12% | 10% |
| Feb 15 | 23°F | -1°F | 47°F 2011 | -26°F 1958 | 12% | 10% |
| Feb 16 | 24°F | -1°F | 50°F 2017 | -26°F 1979 | 12% | 10% |
| Feb 17 | 24°F | -1°F | 50°F 2002 | -30°F 2025 | 12% | 10% |
| Feb 18 | 24°F | 0°F | 47°F 1954 | -33°F 2025 | 12% | 10% |
| Feb 19 | 24°F | 0°F | 51°F 2016 | -23°F 2025 | 12% | 10% |
| Feb 20 | 25°F | 1°F | 50°F 2012 | -26°F 2008 | 11% | 10% |
| Feb 21 | 25°F | 1°F | 54°F 1961 | -21°F 1963 | 11% | 10% |
| Feb 22 | 25°F | 1°F | 57°F 2002 | -23°F 2003 | 11% | 10% |
| Feb 23 | 26°F | 2°F | 57°F 1958 | -17°F 2003 | 11% | 10% |
| Feb 24 | 26°F | 2°F | 51°F 1958 | -23°F 1955 | 11% | 10% |
| Feb 25 | 27°F | 3°F | 66°F 1958 | -17°F 2019 | 11% | 9% |
| Feb 26 | 27°F | 3°F | 57°F 2016 | -24°F 1962 | 11% | 9% |
| Feb 27 | 27°F | 4°F | 65°F 1988 | -30°F 1962 | 11% | 9% |
| Feb 28 | 28°F | 4°F | 58°F 2000 | -31°F 1962 | 11% | 9% |
| Feb 29 | 28°F | 4°F | 63°F 1992 | -25°F 1980 | 11% | 9% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- February 1
- sunrise 8:11 AM, sunset 5:42 PM
- February 28
- sunrise 7:25 AM, sunset 6:25 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00328792 (Towner 2 Ne), public domain. Records: NOAA GHCN-Daily, station USW00024013, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.