March weather in Winthrop Harbor, IL
The average temperature in Winthrop Harbor in March is 35.6°F (26.9°F–44.3°F). Average precipitation: 2.22 inches.
March is a spring month in Winthrop Harbor, and is cooler than the annual average of 48.3°F. Daily temperatures swing about 17.4°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 11h 42m. For travel, March is cold.
Avg High
44.3°F
Avg Low
26.9°F
Precipitation
2.22 in
Daylight
11h 42m
March records in Winthrop Harbor
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 57.9°F (2020) | 3.2°F (2015) | 0.75 in (2007) |
| March 2 | 57.0°F (2008) | -0.8°F (2014) | 0.36 in (2002) |
| March 3 | 66.0°F (2024) | -4.9°F (2014) | 0.30 in (2008) |
| March 4 | 68.0°F (2024) | -7.1°F (2002) | 0.86 in (2004) |
| March 5 | 69.1°F (2022) | -3.8°F (2015) | 0.98 in (2024) |
| March 6 | 66.0°F (2012) | -4.9°F (2015) | 0.88 in (2026) |
| March 7 | 79.0°F (2000) | 11.1°F (2007) | 0.76 in (2009) |
| March 8 | 77.0°F (2000) | 8.1°F (2003) | 1.23 in (2009) |
| March 9 | 73.0°F (2026) | 1.9°F (2003) | 0.66 in (2023) |
| March 10 | 69.1°F (2021) | -2.0°F (2003) | 0.75 in (2013) |
| March 11 | 66.9°F (2024) | 12.9°F (2003) | 0.24 in (2026) |
| March 12 | 72.0°F (2024) | 9.1°F (2022) | 0.89 in (2006) |
| March 13 | 72.0°F (2007) | 8.1°F (2005) | 0.60 in (2016) |
| March 14 | 79.0°F (2012) | 10.2°F (2017) | 0.46 in (2024) |
| March 15 | 77.0°F (2012) | 11.1°F (2017) | 1.80 in (2026) |
| March 16 | 70.0°F (2015) | 15.1°F (2026) | 0.25 in (2023) |
| March 17 | 75.9°F (2012) | 10.9°F (2026) | 0.16 in (2021) |
| March 18 | 79.0°F (2012) | 12.2°F (2023) | 0.46 in (2022) |
| March 19 | 71.1°F (2012) | 15.3°F (2013) | 0.38 in (2025) |
| March 20 | 84.0°F (2012) | 13.1°F (2013) | 1.20 in (2011) |
| March 21 | 84.0°F (2012) | 12.2°F (2013) | 1.15 in (2007) |
| March 22 | 75.0°F (2012) | 12.9°F (2002) | 0.29 in (2011) |
| March 23 | 61.0°F (2003) | 17.2°F (2014) | 0.99 in (2012) |
| March 24 | 80.1°F (2017) | 10.2°F (2015) | 0.78 in (2016) |
| March 25 | 78.1°F (2007) | 14.2°F (2014) | 0.92 in (2023) |
| March 26 | 78.1°F (2007) | 9.1°F (2014) | 0.89 in (2017) |
| March 27 | 72.0°F (2012) | 18.1°F (2015) | 0.51 in (2020) |
| March 28 | 79.0°F (2025) | 13.1°F (2015) | 1.43 in (2020) |
| March 29 | 68.0°F (2025) | 18.1°F (2011) | 0.65 in (2009) |
| March 30 | 79.0°F (2026) | 17.2°F (2009) | 1.41 in (2017) |
| March 31 | 79.0°F (2010) | 18.1°F (2011) | 1.38 in (2008) |