March weather in Diagonal, IA
The average temperature in Diagonal in March is 38.5°F (27.5°F–49.4°F). Average precipitation: 2.16 inches. Average snowfall is 2.6 inches.
March is a spring month in Diagonal, and is cooler than the annual average of 49.6°F. Daily temperatures swing about 21.9°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 11h 43m. For travel, March is cool.
Avg High
49.4°F
Avg Low
27.5°F
Precipitation
2.16 in
Snow
2.6 in
March records in Diagonal
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 73.9°F (1972) | -18.0°F (1962) | 1.10 in (1930) |
| March 2 | 75.0°F (1923) | -13.0°F (1913) | 1.85 in (1951) |
| March 3 | 79.0°F (1983) | -14.1°F (2014) | 0.70 in (1979) |
| March 4 | 77.0°F (1921) | -15.0°F (1978) | 1.40 in (1944) |
| March 5 | 75.0°F (1910) | -20.0°F (1960) | 0.95 in (2004) |
| March 6 | 73.9°F (2009) | -11.0°F (1960) | 1.10 in (2026) |
| March 7 | 73.9°F (2017) | -7.1°F (1943) | 0.55 in (2019) |
| March 8 | 75.9°F (2000) | -4.0°F (1995) | 1.10 in (1990) |
| March 9 | 75.0°F (1986) | -2.9°F (1996) | 0.70 in (1907) |
| March 10 | 75.0°F (1917) | -4.0°F (1948) | 0.96 in (1901) |
| March 11 | 73.9°F (2021) | -13.0°F (1948) | 1.00 in (1973) |
| March 12 | 80.1°F (1972) | -16.1°F (1998) | 1.53 in (1977) |
| March 13 | 80.1°F (1918) | -14.1°F (1998) | 1.50 in (1921) |
| March 14 | 77.0°F (2025) | -7.1°F (1897) | 1.25 in (1973) |
| March 15 | 80.1°F (2012) | 3.9°F (1949) | 1.50 in (1919) |
| March 16 | 78.1°F (2003) | -5.1°F (1900) | 2.84 in (2001) |
| March 17 | 82.0°F (2015) | -6.0°F (1906) | 0.93 in (1965) |
| March 18 | 80.1°F (1921) | -4.0°F (1923) | 1.40 in (1922) |
| March 19 | 78.1°F (2025) | -9.9°F (1923) | 3.48 in (1982) |
| March 20 | 78.1°F (1911) | 0.0°F (1906) | 1.02 in (1967) |
| March 21 | 89.1°F (1907) | 3.9°F (1960) | 0.70 in (1949) |
| March 22 | 91.9°F (2026) | 6.1°F (1912) | 1.02 in (2007) |
| March 23 | 86.0°F (1910) | 7.0°F (1960) | 1.20 in (1939) |
| March 24 | 84.0°F (1910) | 1.9°F (1965) | 1.50 in (1904) |
| March 25 | 90.0°F (1907) | 1.9°F (1965) | 1.50 in (1973) |
| March 26 | 84.9°F (1910) | 1.9°F (1955) | 1.43 in (1959) |
| March 27 | 82.9°F (1895) | 7.0°F (1965) | 1.12 in (1961) |
| March 28 | 82.9°F (1910) | 9.0°F (1970) | 1.46 in (2004) |
| March 29 | 88.0°F (1895) | 6.1°F (1969) | 1.22 in (1977) |
| March 30 | 87.1°F (1986) | 7.0°F (1964) | 1.52 in (2006) |
| March 31 | 84.0°F (1978) | 10.0°F (1899) | 2.10 in (1897) |