March weather in Fairfax, IA
The average temperature in Fairfax in March is 36.5°F (26.8°F–46.3°F). Average precipitation: 1.99 inches.
March is a spring month in Fairfax, and is cooler than the annual average of 48.3°F. Daily temperatures swing about 19.5°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 11h 43m. For travel, March is cool.
Avg High
46.3°F
Avg Low
26.8°F
Precipitation
1.99 in
Daylight
11h 43m
March records in Fairfax
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 71.1°F (1992) | -20.0°F (1962) | 0.83 in (1991) |
| March 2 | 69.1°F (1992) | -10.8°F (2014) | 0.63 in (1970) |
| March 3 | 80.1°F (2024) | -14.8°F (2014) | 0.74 in (1985) |
| March 4 | 68.0°F (2000) | -11.9°F (2002) | 2.01 in (1976) |
| March 5 | 70.0°F (2009) | -11.9°F (1960) | 0.91 in (2018) |
| March 6 | 73.0°F (2005) | -8.0°F (1960) | 1.00 in (1973) |
| March 7 | 78.1°F (2000) | -8.0°F (1960) | 0.96 in (2009) |
| March 8 | 75.9°F (1977) | -5.1°F (1996) | 2.00 in (2006) |
| March 9 | 73.9°F (2026) | -2.9°F (1984) | 1.27 in (2013) |
| March 10 | 75.0°F (2025) | -5.1°F (1984) | 0.86 in (1990) |
| March 11 | 75.0°F (1972) | 1.9°F (1998) | 1.27 in (1977) |
| March 12 | 78.1°F (1990) | -4.0°F (1998) | 0.97 in (1991) |
| March 13 | 73.9°F (2007) | -5.1°F (1975) | 1.01 in (1990) |
| March 14 | 81.0°F (2025) | -6.0°F (1960) | 0.57 in (1990) |
| March 15 | 79.0°F (2012) | 2.1°F (2017) | 0.67 in (1987) |
| March 16 | 82.0°F (2012) | 7.0°F (2026) | 0.53 in (1960) |
| March 17 | 82.0°F (2012) | 0.0°F (2026) | 0.75 in (1966) |
| March 18 | 82.0°F (2012) | 3.9°F (1960) | 1.00 in (1963) |
| March 19 | 81.0°F (2012) | 7.0°F (1965) | 0.84 in (2012) |
| March 20 | 77.0°F (2012) | 7.0°F (1965) | 0.62 in (1967) |
| March 21 | 89.1°F (2026) | 1.0°F (1960) | 0.73 in (1975) |
| March 22 | 75.9°F (1994) | 9.0°F (1960) | 1.13 in (1993) |
| March 23 | 77.0°F (1994) | 3.0°F (1960) | 0.56 in (2021) |
| March 24 | 73.9°F (1963) | -4.0°F (1974) | 0.78 in (1954) |
| March 25 | 79.0°F (2007) | -0.9°F (1960) | 0.80 in (1970) |
| March 26 | 82.0°F (1991) | 5.0°F (1955) | 1.34 in (1959) |
| March 27 | 77.0°F (1989) | 3.0°F (1964) | 1.12 in (1991) |
| March 28 | 82.0°F (2025) | 9.0°F (1970) | 1.59 in (1977) |
| March 29 | 88.0°F (1986) | 9.0°F (1969) | 1.70 in (1974) |
| March 30 | 86.0°F (2026) | 6.1°F (1964) | 2.43 in (1998) |
| March 31 | 81.0°F (1986) | 14.0°F (1969) | 0.98 in (1973) |