May weather in Fairfield, ID
The average temperature in Fairfield in May is 51.3°F (38.1°F–64.5°F). Average precipitation: 1.60 inches.
May is a spring month in Fairfield, and is warmer than the annual average of 42.1°F. Daily temperatures swing about 26.4°F between overnight low and afternoon high. Daylight averages about 14h 30m. For travel, May is a comfortable month to visit.
Avg High
64.5°F
Avg Low
38.1°F
Precipitation
1.60 in
Daylight
14h 30m
May records in Fairfield
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 81.0°F (1985) | 18.0°F (1967) | 0.72 in (1995) |
| May 2 | 81.0°F (1985) | 18.0°F (1988) | 0.33 in (1955) |
| May 3 | 84.9°F (1966) | 19.9°F (1988) | 0.45 in (2003) |
| May 4 | 84.0°F (1966) | 19.9°F (1991) | 0.25 in (1993) |
| May 5 | 84.0°F (1992) | 19.9°F (1977) | 0.62 in (1983) |
| May 6 | 84.9°F (1992) | 15.1°F (1968) | 1.02 in (2005) |
| May 7 | 84.9°F (1992) | 15.1°F (1984) | 0.63 in (2017) |
| May 8 | 84.9°F (1992) | 19.0°F (2002) | 0.37 in (2011) |
| May 9 | 84.0°F (1987) | 19.9°F (2002) | 0.58 in (2005) |
| May 10 | 82.9°F (1960) | 21.9°F (1983) | 0.33 in (1986) |
| May 11 | 84.9°F (1960) | 19.9°F (1967) | 0.77 in (1957) |
| May 12 | 84.0°F (1988) | 19.0°F (1985) | 0.83 in (1958) |
| May 13 | 82.9°F (1993) | 21.0°F (1974) | 0.33 in (2018) |
| May 14 | 82.0°F (1987) | 21.9°F (1966) | 1.14 in (1955) |
| May 15 | 84.0°F (1987) | 24.1°F (1970) | 0.63 in (1985) |
| May 16 | 86.0°F (2006) | 16.0°F (1974) | 1.07 in (2005) |
| May 17 | 87.1°F (2006) | 21.9°F (1984) | 1.56 in (1987) |
| May 18 | 84.9°F (1954) | 23.0°F (1960) | 0.53 in (2005) |
| May 19 | 89.1°F (1954) | 18.0°F (2003) | 1.43 in (1957) |
| May 20 | 86.0°F (1954) | 26.1°F (1969) | 1.25 in (1962) |
| May 21 | 82.9°F (1958) | 23.0°F (2009) | 0.83 in (2019) |
| May 22 | 82.9°F (1967) | 24.1°F (1984) | 0.27 in (2019) |
| May 23 | 84.0°F (1988) | 19.0°F (1966) | 0.67 in (1963) |
| May 24 | 86.0°F (1985) | 19.0°F (1966) | 0.89 in (1962) |
| May 25 | 86.0°F (1992) | 19.9°F (1966) | 0.80 in (2015) |
| May 26 | 87.1°F (1986) | 21.0°F (1966) | 0.63 in (1981) |
| May 27 | 87.1°F (1986) | 21.0°F (1966) | 0.59 in (1996) |
| May 28 | 93.9°F (2003) | 21.0°F (1966) | 0.56 in (1996) |
| May 29 | 93.0°F (2003) | 23.0°F (1966) | 0.88 in (1953) |
| May 30 | 89.1°F (1986) | 24.1°F (1966) | 0.53 in (1971) |
| May 31 | 89.1°F (1986) | 24.1°F (1978) | 0.74 in (2023) |