March weather in Decatur, IN
The average temperature in Decatur in March is 38.0°F (28.5°F–47.5°F). Average precipitation: 2.75 inches. Average snowfall is 4.2 inches.
March is a spring month in Decatur, and is cooler than the annual average of 50.7°F. Daily temperatures swing about 19°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 11h 43m. For travel, March is cool.
Avg High
47.5°F
Avg Low
28.5°F
Precipitation
2.75 in
Snow
4.2 in
March records in Decatur
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 66.9°F (2012) | 1.9°F (2014) | 1.40 in (1955) |
| March 2 | 64.0°F (2023) | 10.0°F (2009) | 1.11 in (1972) |
| March 3 | 68.0°F (1974) | -2.0°F (2014) | 1.04 in (1976) |
| March 4 | 66.9°F (1974) | -2.0°F (2014) | 2.30 in (1955) |
| March 5 | 73.0°F (2024) | 3.0°F (2014) | 1.09 in (1964) |
| March 6 | 73.0°F (2022) | 1.0°F (2015) | 0.55 in (1956) |
| March 7 | 64.0°F (1974) | 1.9°F (2015) | 1.09 in (2022) |
| March 8 | 71.1°F (1974) | 8.1°F (2014) | 2.10 in (2009) |
| March 9 | 71.1°F (2016) | 14.0°F (1972) | 1.75 in (2009) |
| March 10 | 66.9°F (2016) | 9.0°F (1972) | 1.64 in (2019) |
| March 11 | 68.0°F (2009) | 10.0°F (1979) | 2.10 in (1952) |
| March 12 | 70.0°F (1972) | 10.9°F (1979) | 2.31 in (1939) |
| March 13 | 69.1°F (2024) | 3.0°F (2014) | 1.19 in (1961) |
| March 14 | 73.9°F (2007) | 3.0°F (2014) | 1.72 in (1933) |
| March 15 | 79.0°F (2012) | 10.9°F (1979) | 1.08 in (2007) |
| March 16 | 79.0°F (2012) | 10.9°F (1979) | 1.32 in (2025) |
| March 17 | 78.1°F (2012) | 12.9°F (2014) | 0.56 in (1980) |
| March 18 | 75.9°F (2012) | 12.9°F (2014) | 1.36 in (1977) |
| March 19 | 73.0°F (1979) | 16.0°F (2023) | 1.40 in (2021) |
| March 20 | 82.0°F (2012) | 16.0°F (2023) | 0.86 in (1996) |
| March 21 | 84.9°F (2012) | 15.1°F (2013) | 0.81 in (1962) |
| March 22 | 87.1°F (2012) | 15.1°F (2013) | 1.47 in (1948) |
| March 23 | 82.9°F (2012) | 18.0°F (2013) | 1.27 in (1935) |
| March 24 | 71.1°F (2021) | 10.0°F (1974) | 1.18 in (1936) |
| March 25 | 75.9°F (2017) | -2.9°F (1974) | 1.17 in (2016) |
| March 26 | 79.0°F (2007) | 5.0°F (1974) | 0.83 in (1964) |
| March 27 | 75.9°F (2007) | 5.0°F (1974) | 1.90 in (1934) |
| March 28 | 75.0°F (2007) | 16.0°F (2015) | 1.40 in (1967) |
| March 29 | 77.0°F (2025) | 18.0°F (2011) | 1.02 in (1998) |
| March 30 | 71.1°F (2025) | 21.9°F (2023) | 0.82 in (1987) |
| March 31 | 75.0°F (2026) | 21.0°F (2011) | 2.42 in (1938) |