May weather in Box Elder, SD
The average temperature in Box Elder in May is 54.1°F (41.7°F–66.5°F). Average precipitation: 3.45 inches. Average snowfall is 1.5 inches.
May is a spring month in Box Elder, and is warmer than the annual average of 46.7°F. Daily temperatures swing about 24.8°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 14h 34m. For travel, May is a comfortable month to visit.
Avg High
66.5°F
Avg Low
41.7°F
Precipitation
3.45 in
Snow
1.5 in
May records in Box Elder
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 88.0°F (1955) | 18.0°F (1950) | 1.86 in (1988) |
| May 2 | 86.0°F (2015) | 21.2°F (2019) | 1.58 in (2008) |
| May 3 | 93.0°F (1952) | 19.0°F (1954) | 0.76 in (1969) |
| May 4 | 91.0°F (1986) | 25.2°F (2013) | 0.64 in (1959) |
| May 5 | 93.0°F (2004) | 26.1°F (1996) | 1.10 in (2007) |
| May 6 | 88.0°F (2017) | 26.1°F (1989) | 1.61 in (2015) |
| May 7 | 90.0°F (1992) | 25.0°F (2010) | 0.88 in (2005) |
| May 8 | 88.0°F (1985) | 21.0°F (2010) | 1.36 in (1965) |
| May 9 | 86.0°F (1962) | 25.0°F (2002) | 1.17 in (2015) |
| May 10 | 90.0°F (1961) | 24.1°F (1990) | 1.81 in (2010) |
| May 11 | 95.0°F (2025) | 23.0°F (1953) | 1.70 in (2023) |
| May 12 | 93.9°F (2025) | 21.9°F (1953) | 0.84 in (2023) |
| May 13 | 91.9°F (1955) | 26.1°F (1953) | 0.92 in (1982) |
| May 14 | 89.1°F (1976) | 25.2°F (2016) | 3.21 in (1965) |
| May 15 | 90.0°F (1987) | 30.0°F (2005) | 1.09 in (2015) |
| May 16 | 91.0°F (1979) | 24.1°F (2009) | 0.89 in (1955) |
| May 17 | 93.0°F (1988) | 30.9°F (1969) | 1.01 in (1962) |
| May 18 | 91.9°F (1992) | 33.1°F (2019) | 0.79 in (1962) |
| May 19 | 93.9°F (2009) | 30.9°F (1966) | 2.05 in (2011) |
| May 20 | 91.9°F (1964) | 25.0°F (2003) | 1.51 in (1957) |
| May 21 | 91.9°F (1954) | 28.2°F (2022) | 2.80 in (1999) |
| May 22 | 91.0°F (2006) | 24.3°F (2022) | 2.09 in (2008) |
| May 23 | 87.1°F (1951) | 24.1°F (2002) | 1.74 in (1996) |
| May 24 | 89.1°F (1985) | 23.0°F (2002) | 1.38 in (2010) |
| May 25 | 86.0°F (1985) | 30.0°F (1992) | 1.85 in (1997) |
| May 26 | 95.0°F (1969) | 30.0°F (1984) | 1.40 in (1996) |
| May 27 | 98.1°F (1969) | 34.0°F (1965) | 1.68 in (1996) |
| May 28 | 89.1°F (1951) | 32.0°F (1984) | 1.45 in (2019) |
| May 29 | 93.9°F (2003) | 35.1°F (1954) | 1.71 in (2013) |
| May 30 | 91.0°F (1969) | 34.0°F (1975) | 1.19 in (1996) |
| May 31 | 89.1°F (1960) | 33.1°F (1982) | 0.73 in (2005) |