March weather in Petersburg, IL
The average temperature in Petersburg in March is 40.6°F (30.3°F–50.8°F). Average precipitation: 2.51 inches. Average snowfall is 1.4 inches.
March is a spring month in Petersburg, and is cooler than the annual average of 52.3°F. Daily temperatures swing about 20.5°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 11h 44m. For travel, March is cool.
Avg High
50.8°F
Avg Low
30.3°F
Precipitation
2.51 in
Snow
1.4 in
March records in Petersburg
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 72.0°F (2017) | 5.0°F (2015) | 0.45 in (2015) |
| March 2 | 66.0°F (2020) | 12.9°F (2016) | 0.92 in (2007) |
| March 3 | 71.1°F (2022) | 12.0°F (2015) | 0.56 in (2002) |
| March 4 | 75.0°F (2024) | -2.0°F (2019) | 1.23 in (2023) |
| March 5 | 77.0°F (2024) | -2.0°F (2019) | 1.16 in (2004) |
| March 6 | 75.0°F (2022) | 1.0°F (2015) | 0.63 in (1996) |
| March 7 | 69.1°F (2023) | 8.1°F (2015) | 1.46 in (1995) |
| March 8 | 66.9°F (2016) | 21.0°F (2018) | 0.70 in (1990) |
| March 9 | 71.1°F (2016) | 21.0°F (2018) | 1.15 in (1998) |
| March 10 | 72.0°F (2021) | 24.1°F (2018) | 1.58 in (2019) |
| March 11 | 73.0°F (2025) | 19.9°F (2022) | 0.96 in (2013) |
| March 12 | 73.9°F (2025) | 8.1°F (2022) | 1.19 in (2006) |
| March 13 | 73.0°F (2024) | 9.0°F (2022) | 0.67 in (1991) |
| March 14 | 78.1°F (2025) | 16.0°F (2023) | 0.95 in (2016) |
| March 15 | 82.0°F (2025) | 9.0°F (2023) | 0.40 in (2025) |
| March 16 | 75.0°F (2016) | 12.9°F (2023) | 0.56 in (2021) |
| March 17 | 77.0°F (2015) | 19.9°F (2023) | 0.43 in (2023) |
| March 18 | 75.9°F (2022) | 6.1°F (2023) | 1.88 in (2021) |
| March 19 | 79.0°F (2025) | 1.9°F (2023) | 1.21 in (2021) |
| March 20 | 72.0°F (2025) | 1.9°F (2023) | 0.83 in (2003) |
| March 21 | 78.1°F (2017) | 7.0°F (2023) | 0.64 in (2003) |
| March 22 | 73.9°F (2022) | 18.0°F (2023) | 0.42 in (2022) |
| March 23 | 69.1°F (2021) | 18.0°F (2023) | 0.51 in (1993) |
| March 24 | 66.0°F (2016) | 24.1°F (2023) | 1.19 in (2018) |
| March 25 | 79.0°F (2017) | 18.0°F (2023) | 0.87 in (2015) |
| March 26 | 75.0°F (2026) | 10.9°F (2023) | 0.80 in (2024) |
| March 27 | 91.9°F (2026) | 1.0°F (2024) | 1.08 in (2018) |
| March 28 | 72.0°F (2021) | 12.0°F (2023) | 0.55 in (1998) |
| March 29 | 82.9°F (2025) | 16.0°F (2023) | 0.95 in (1988) |
| March 30 | 73.0°F (2024) | 21.0°F (2023) | 0.92 in (2019) |
| March 31 | 84.9°F (2026) | 27.0°F (2019) | 1.82 in (2022) |