March weather in St. Marys, PA
The average temperature in St. Marys in March is 31.7°F (20.9°F–42.5°F). Average precipitation: 3.38 inches. Average snowfall is 10.3 inches.
March is a spring month in St. Marys, and is cooler than the annual average of 45.1°F. Daily temperatures swing about 21.6°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 11h 43m. For travel, March is cold.
Avg High
42.5°F
Avg Low
20.9°F
Precipitation
3.38 in
Snow
10.3 in
March records in St. Marys
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 61.0°F (2018) | -20.0°F (2015) | 1.12 in (1954) |
| March 2 | 60.1°F (2004) | 10.0°F (2009) | 1.81 in (1954) |
| March 3 | 53.1°F (2020) | -2.0°F (2015) | 1.08 in (1972) |
| March 4 | 62.1°F (2008) | -9.9°F (2014) | 1.25 in (1991) |
| March 5 | 71.1°F (2024) | -8.0°F (2014) | 1.20 in (1993) |
| March 6 | 73.0°F (2024) | -13.0°F (2015) | 1.59 in (1997) |
| March 7 | 68.0°F (2022) | -13.0°F (2015) | 0.77 in (2024) |
| March 8 | 63.0°F (2009) | -5.1°F (2007) | 1.03 in (1956) |
| March 9 | 66.9°F (2016) | -6.0°F (2019) | 1.92 in (2009) |
| March 10 | 72.0°F (2016) | -2.9°F (2005) | 1.85 in (1964) |
| March 11 | 60.1°F (2010) | -2.9°F (2005) | 1.03 in (1992) |
| March 12 | 64.0°F (2010) | 5.0°F (1980) | 1.12 in (1985) |
| March 13 | 66.9°F (2012) | -2.0°F (2014) | 1.19 in (1977) |
| March 14 | 70.0°F (2024) | -2.0°F (2005) | 0.93 in (2006) |
| March 15 | 70.0°F (2012) | -2.0°F (2005) | 1.32 in (1973) |
| March 16 | 70.0°F (2012) | 1.0°F (2005) | 0.94 in (1974) |
| March 17 | 70.0°F (2012) | 7.0°F (2017) | 0.97 in (1973) |
| March 18 | 77.0°F (2012) | 7.0°F (2017) | 0.83 in (1973) |
| March 19 | 71.1°F (2022) | 7.0°F (2007) | 0.69 in (2008) |
| March 20 | 69.1°F (2025) | 7.0°F (2007) | 1.12 in (1975) |
| March 21 | 71.1°F (2012) | 10.0°F (2006) | 0.77 in (2004) |
| March 22 | 73.0°F (2012) | 6.1°F (2004) | 1.25 in (1945) |
| March 23 | 73.0°F (2012) | 7.0°F (2004) | 0.66 in (2024) |
| March 24 | 79.0°F (2012) | 7.0°F (2014) | 1.47 in (1953) |
| March 25 | 71.1°F (2016) | 7.0°F (2014) | 0.60 in (1989) |
| March 26 | 64.0°F (2007) | 9.0°F (2014) | 0.98 in (1997) |
| March 27 | 73.9°F (2007) | 6.1°F (2014) | 0.96 in (2002) |
| March 28 | 73.9°F (2007) | 6.1°F (2014) | 1.51 in (2008) |
| March 29 | 72.0°F (2012) | 5.0°F (2015) | 0.90 in (2020) |
| March 30 | 64.9°F (2025) | 6.1°F (2015) | 0.85 in (2018) |
| March 31 | 66.0°F (2006) | 12.0°F (2023) | 1.61 in (1989) |