May weather in Fairfax, OH
The average temperature in Fairfax in May is 64.0°F (52.7°F–75.4°F). Average precipitation: 4.70 inches.
May is a spring month in Fairfax, and is warmer than the annual average of 54.8°F. Daily temperatures swing about 22.7°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 14h 9m. For travel, May is a comfortable month to visit.
Avg High
75.4°F
Avg Low
52.7°F
Precipitation
4.70 in
Daylight
14h 9m
May records in Fairfax
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 87.1°F (1951) | 30.9°F (2005) | 1.98 in (1985) |
| May 2 | 90.0°F (1951) | 32.0°F (1961) | 1.66 in (1997) |
| May 3 | 89.1°F (1959) | 32.0°F (1961) | 1.66 in (2025) |
| May 4 | 89.1°F (1949) | 32.0°F (1957) | 1.22 in (1990) |
| May 5 | 91.9°F (1949) | 28.9°F (1957) | 1.40 in (2003) |
| May 6 | 91.9°F (1952) | 32.0°F (1957) | 1.33 in (2022) |
| May 7 | 89.1°F (1949) | 32.0°F (1974) | 3.53 in (2024) |
| May 8 | 88.0°F (1949) | 31.1°F (2017) | 2.49 in (1972) |
| May 9 | 90.0°F (1963) | 27.1°F (2020) | 1.02 in (1968) |
| May 10 | 87.1°F (1979) | 27.0°F (1966) | 3.97 in (2003) |
| May 11 | 88.0°F (1979) | 37.9°F (1997) | 1.26 in (1968) |
| May 12 | 88.0°F (2011) | 35.1°F (2013) | 1.80 in (1980) |
| May 13 | 89.1°F (1957) | 36.0°F (1996) | 2.51 in (1963) |
| May 14 | 91.9°F (1962) | 37.0°F (1952) | 1.26 in (1995) |
| May 15 | 90.0°F (1962) | 37.0°F (2016) | 3.08 in (1996) |
| May 16 | 91.9°F (1962) | 32.0°F (2016) | 2.69 in (1990) |
| May 17 | 93.9°F (1962) | 39.0°F (1973) | 1.23 in (2002) |
| May 18 | 93.9°F (1962) | 37.0°F (2009) | 1.95 in (2020) |
| May 19 | 93.0°F (1962) | 34.0°F (2002) | 2.50 in (2020) |
| May 20 | 90.0°F (1962) | 39.9°F (2006) | 1.23 in (2025) |
| May 21 | 91.0°F (1975) | 37.9°F (2002) | 1.16 in (1982) |
| May 22 | 90.0°F (1964) | 34.0°F (2002) | 1.57 in (1957) |
| May 23 | 90.0°F (1965) | 35.1°F (1963) | 2.49 in (1968) |
| May 24 | 93.0°F (1975) | 37.0°F (1963) | 2.13 in (1968) |
| May 25 | 91.0°F (1965) | 37.0°F (1949) | 1.88 in (1995) |
| May 26 | 91.0°F (1965) | 43.0°F (1983) | 1.41 in (2004) |
| May 27 | 91.0°F (2012) | 36.0°F (1961) | 2.13 in (2000) |
| May 28 | 91.0°F (1987) | 42.1°F (1971) | 0.79 in (1960) |
| May 29 | 91.0°F (1977) | 39.0°F (1949) | 1.80 in (1950) |
| May 30 | 91.0°F (2006) | 39.9°F (1961) | 1.50 in (2025) |
| May 31 | 93.0°F (1988) | 41.0°F (1961) | 1.38 in (1997) |