March weather in Decorah, IA
The average temperature in Decorah in March is 36.0°F (25.9°F–46.2°F). Average precipitation: 2.05 inches. Average snowfall is 5.7 inches.
March is a spring month in Decorah, and is cooler than the annual average of 48.5°F. Daily temperatures swing about 20.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 11h 42m. For travel, March is cool.
Avg High
46.2°F
Avg Low
25.9°F
Precipitation
2.05 in
Snow
5.7 in
March records in Decorah
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 61.0°F (1992) | -33.0°F (1962) | 1.00 in (1932) |
| March 2 | 64.9°F (2024) | -17.0°F (1962) | 0.71 in (1972) |
| March 3 | 75.9°F (2024) | -24.0°F (2014) | 1.13 in (1951) |
| March 4 | 75.9°F (2024) | -14.1°F (2019) | 1.12 in (1894) |
| March 5 | 70.0°F (2000) | -14.1°F (1960) | 1.70 in (1908) |
| March 6 | 72.0°F (2000) | -9.0°F (1893) | 1.05 in (1959) |
| March 7 | 79.0°F (2000) | -15.0°F (1899) | 0.70 in (1893) |
| March 8 | 78.1°F (2000) | -11.0°F (2008) | 0.90 in (2002) |
| March 9 | 71.1°F (2000) | -13.0°F (1975) | 0.95 in (1992) |
| March 10 | 70.0°F (2025) | -7.1°F (2003) | 0.65 in (1901) |
| March 11 | 71.1°F (2024) | -5.1°F (1932) | 1.21 in (1973) |
| March 12 | 73.0°F (1990) | -7.1°F (1896) | 0.94 in (1977) |
| March 13 | 72.0°F (1990) | -9.0°F (1950) | 1.22 in (1997) |
| March 14 | 80.1°F (2025) | -11.9°F (1950) | 2.30 in (1913) |
| March 15 | 78.1°F (2025) | -2.9°F (1897) | 1.60 in (1919) |
| March 16 | 80.1°F (2012) | -9.0°F (1900) | 0.66 in (1982) |
| March 17 | 81.0°F (2012) | -9.9°F (1959) | 0.45 in (1917) |
| March 18 | 81.0°F (2012) | -8.0°F (1950) | 0.93 in (1966) |
| March 19 | 80.1°F (2012) | -14.1°F (1923) | 1.70 in (1933) |
| March 20 | 77.0°F (1938) | -14.1°F (1965) | 1.33 in (2011) |
| March 21 | 82.9°F (2026) | -9.9°F (1965) | 0.83 in (1913) |
| March 22 | 82.9°F (2026) | -2.0°F (1912) | 0.90 in (1893) |
| March 23 | 80.1°F (1939) | -2.0°F (1916) | 1.82 in (1966) |
| March 24 | 78.1°F (1939) | -9.9°F (1974) | 1.30 in (1904) |
| March 25 | 79.0°F (2007) | -2.0°F (1940) | 0.95 in (1906) |
| March 26 | 82.9°F (1907) | 0.0°F (1965) | 1.33 in (1906) |
| March 27 | 78.1°F (1907) | -2.9°F (1964) | 0.96 in (1898) |
| March 28 | 84.9°F (2025) | -2.9°F (1964) | 1.97 in (1956) |
| March 29 | 84.9°F (2025) | 0.0°F (1969) | 1.02 in (1933) |
| March 30 | 84.0°F (1986) | 1.9°F (1899) | 0.95 in (1934) |
| March 31 | 80.1°F (2026) | 3.0°F (1923) | 1.20 in (1998) |