Cook County Weather in March
Average highs run from 29°F on March 1 to 38°F on March 31, and lows from 12°F to 24°F. Normal precipitation for the month is 0.95 in over about 5 wet days.
March day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
March at a glance
- Average high
- 33°F
- Average low
- 18°F
- Precipitation
- 0.95 in
- Snowfall
- 6.0 in
- Record high
- 67°FMar 31, 2010
- Record low
- -21°FMar 2, 2014
- Chance of a freeze
- 100%
- Daylight
- 11 h 04 min to 12 h 49 min
- Cloud cover
- 64%
- Humidity
- 86%
- Dew point
- 19°F
- Wind
- 8.1 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 |
|---|---|---|---|---|---|---|
| Mar 1 | 29°F | 12°F | 45°F 2024 | -14°F 2014 | 17% | 12% |
| Mar 2 | 29°F | 12°F | 47°F 2001 | -21°F 2014 | 17% | 12% |
| Mar 3 | 29°F | 13°F | 47°F 2000 | -13°F 2019 | 17% | 12% |
| Mar 4 | 30°F | 13°F | 45°F 2000 | -13°F 2019 | 17% | 12% |
| Mar 5 | 30°F | 14°F | 44°F 2000 | -7°F 2015 | 17% | 11% |
| Mar 6 | 30°F | 14°F | 47°F 2009 | -8°F 2008 | 17% | 11% |
| Mar 7 | 31°F | 14°F | 46°F 2017 | -11°F 2008 | 17% | 11% |
| Mar 8 | 31°F | 15°F | 56°F 2021 | -7°F 2005 | 17% | 11% |
| Mar 9 | 31°F | 15°F | 59°F 2025 | -9°F 2003 | 17% | 11% |
| Mar 10 | 31°F | 16°F | 57°F 2015 | -7°F 2003 | 17% | 10% |
| Mar 11 | 32°F | 16°F | 50°F 2012 | -5°F 2001 | 17% | 10% |
| Mar 12 | 32°F | 16°F | 59°F 2016 | -17°F 2009 | 17% | 10% |
| Mar 13 | 32°F | 17°F | 63°F 2007 | 1°F 2005 | 17% | 10% |
| Mar 14 | 33°F | 17°F | 53°F 2010 | 4°F 2023 | 18% | 10% |
| Mar 15 | 33°F | 18°F | 50°F 2010 | -1°F 2014 | 18% | 10% |
| Mar 16 | 33°F | 18°F | 54°F 2012 | -7°F 2014 | 18% | 10% |
| Mar 17 | 34°F | 18°F | 60°F 2012 | -8°F 2026 | 18% | 9% |
| Mar 18 | 34°F | 19°F | 62°F 2010 | 10°F 2006 | 18% | 9% |
| Mar 19 | 34°F | 19°F | 64°F 2012 | 8°F 2007 | 18% | 9% |
| Mar 20 | 35°F | 20°F | 57°F 2012 | 4°F 2007 | 18% | 9% |
| Mar 21 | 35°F | 20°F | 55°F 2019 | 2°F 2002 | 18% | 9% |
| Mar 22 | 35°F | 20°F | 53°F 2012 | 5°F 2002 | 18% | 9% |
| Mar 23 | 36°F | 21°F | 52°F 2012 | -1°F 2014 | 18% | 9% |
| Mar 24 | 36°F | 21°F | 58°F 2003 | -5°F 2014 | 18% | 9% |
| Mar 25 | 36°F | 21°F | 46°F 2007 | 2°F 2014 | 19% | 8% |
| Mar 26 | 36°F | 22°F | 59°F 2007 | 6°F 2014 | 19% | 8% |
| Mar 27 | 37°F | 22°F | 49°F 2012 | 3°F 2022 | 19% | 8% |
| Mar 28 | 37°F | 23°F | 48°F 2012 | 6°F 2022 | 19% | 8% |
| Mar 29 | 37°F | 23°F | 53°F 1999 | 10°F 2023 | 19% | 8% |
| Mar 30 | 38°F | 23°F | 50°F 2005 | 11°F 2023 | 19% | 8% |
| Mar 31 | 38°F | 24°F | 67°F 2010 | 16°F 2018 | 20% | 8% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- March 1
- sunrise 6:43 AM, sunset 5:47 PM
- March 31
- sunrise 6:42 AM, sunset 7:31 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00213282 (Grand Marais), public domain. Records: NOAA GHCN-Daily, station USW00094992, 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.