May weather in Heyburn, ID
The average temperature in Heyburn in May is 55.8°F (42.6°F–69.1°F). Average precipitation: 1.69 inches.
May is a spring month in Heyburn, and is warmer than the annual average of 49°F. Daily temperatures swing about 26.5°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 26m. For travel, May is a comfortable month to visit.
Avg High
69.1°F
Avg Low
42.6°F
Precipitation
1.69 in
Daylight
14h 26m
May records in Heyburn
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 86.0°F (1981) | 19.0°F (1967) | 0.66 in (1959) |
| May 2 | 82.9°F (1966) | 23.0°F (1954) | 1.34 in (1991) |
| May 3 | 87.1°F (1966) | 21.0°F (1961) | 0.61 in (2009) |
| May 4 | 87.1°F (1966) | 25.0°F (1964) | 0.49 in (1975) |
| May 5 | 88.0°F (1992) | 21.9°F (1982) | 1.15 in (1973) |
| May 6 | 89.1°F (1989) | 21.9°F (1964) | 1.03 in (2014) |
| May 7 | 90.0°F (1992) | 21.0°F (2010) | 0.45 in (2000) |
| May 8 | 88.0°F (1954) | 26.1°F (2002) | 0.61 in (1991) |
| May 9 | 88.0°F (1954) | 26.1°F (2002) | 0.82 in (1998) |
| May 10 | 89.1°F (1960) | 25.0°F (1983) | 0.62 in (1998) |
| May 11 | 91.9°F (1960) | 27.1°F (2022) | 1.47 in (2010) |
| May 12 | 91.0°F (2001) | 28.0°F (1962) | 0.52 in (2018) |
| May 13 | 89.1°F (1993) | 27.0°F (1953) | 0.17 in (1998) |
| May 14 | 88.0°F (1978) | 26.1°F (1967) | 0.40 in (1998) |
| May 15 | 89.1°F (1954) | 28.9°F (1974) | 0.39 in (1984) |
| May 16 | 89.1°F (1988) | 27.0°F (1968) | 1.31 in (2015) |
| May 17 | 90.0°F (1992) | 30.9°F (1955) | 0.35 in (1987) |
| May 18 | 91.0°F (2009) | 28.9°F (1950) | 1.16 in (1957) |
| May 19 | 97.0°F (1954) | 28.0°F (2003) | 0.54 in (1953) |
| May 20 | 91.0°F (1958) | 28.0°F (1975) | 0.52 in (2002) |
| May 21 | 90.0°F (2012) | 30.0°F (1959) | 0.61 in (1970) |
| May 22 | 90.0°F (1967) | 30.0°F (2010) | 0.57 in (2020) |
| May 23 | 90.0°F (1999) | 27.0°F (1966) | 0.77 in (2015) |
| May 24 | 91.0°F (1969) | 32.0°F (1960) | 0.55 in (2023) |
| May 25 | 89.1°F (1958) | 28.0°F (1953) | 0.42 in (1987) |
| May 26 | 91.0°F (1958) | 27.0°F (1978) | 0.78 in (2012) |
| May 27 | 91.0°F (1958) | 33.1°F (1965) | 0.86 in (2006) |
| May 28 | 97.0°F (2003) | 28.0°F (1954) | 0.59 in (1956) |
| May 29 | 96.1°F (2020) | 33.1°F (1975) | 1.21 in (1964) |
| May 30 | 93.9°F (2020) | 32.0°F (1979) | 0.60 in (1988) |
| May 31 | 91.9°F (1997) | 28.9°F (1978) | 0.71 in (1990) |