May weather in Piedmont, SD
The average temperature in Piedmont in May is 53.0°F (41.6°F–64.4°F). Average precipitation: 3.73 inches. Average snowfall is 0.9 inches.
May is a spring month in Piedmont, and is warmer than the annual average of 46.3°F. Daily temperatures swing about 22.8°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 35m. For travel, May is a comfortable month to visit.
Avg High
64.4°F
Avg Low
41.6°F
Precipitation
3.73 in
Snow
0.9 in
May records in Piedmont
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 89.1°F (1992) | 23.0°F (1950) | 1.07 in (1995) |
| May 2 | 82.9°F (1952) | 23.0°F (1990) | 1.40 in (1997) |
| May 3 | 88.0°F (1952) | 19.0°F (1954) | 0.65 in (1991) |
| May 4 | 91.0°F (1986) | 0.0°F (2002) | 0.72 in (1969) |
| May 5 | 82.9°F (1986) | 0.0°F (2002) | 0.54 in (1993) |
| May 6 | 93.0°F (2000) | 0.0°F (2002) | 1.60 in (2007) |
| May 7 | 88.0°F (1963) | 0.0°F (2002) | 1.02 in (1950) |
| May 8 | 88.0°F (1992) | 26.1°F (2010) | 0.98 in (1965) |
| May 9 | 82.9°F (1962) | 27.0°F (2020) | 1.62 in (1995) |
| May 10 | 90.0°F (1961) | 26.1°F (1990) | 1.46 in (2001) |
| May 11 | 89.1°F (2025) | 24.1°F (1979) | 1.52 in (2010) |
| May 12 | 96.1°F (2025) | 23.0°F (1953) | 1.97 in (1991) |
| May 13 | 93.9°F (2025) | 24.1°F (1953) | 0.74 in (1956) |
| May 14 | 93.9°F (2001) | 0.0°F (2002) | 2.71 in (1965) |
| May 15 | 89.1°F (1978) | 28.0°F (2016) | 1.18 in (1962) |
| May 16 | 90.0°F (1979) | 28.9°F (2009) | 1.48 in (2015) |
| May 17 | 91.9°F (1988) | 28.9°F (2004) | 2.49 in (1981) |
| May 18 | 87.1°F (1988) | 30.9°F (1992) | 1.33 in (1962) |
| May 19 | 91.9°F (1992) | 0.0°F (2002) | 1.27 in (2025) |
| May 20 | 91.9°F (1992) | 30.0°F (1968) | 2.62 in (2011) |
| May 21 | 91.9°F (1966) | 0.0°F (2002) | 1.64 in (1962) |
| May 22 | 88.0°F (1966) | 30.0°F (1963) | 2.12 in (2019) |
| May 23 | 89.1°F (1984) | 32.0°F (2019) | 1.63 in (1971) |
| May 24 | 89.1°F (1984) | 27.0°F (2002) | 1.60 in (1996) |
| May 25 | 84.9°F (1966) | 0.0°F (2002) | 2.00 in (2010) |
| May 26 | 96.1°F (1969) | 0.0°F (2002) | 2.62 in (1997) |
| May 27 | 99.0°F (1969) | 0.0°F (2002) | 1.60 in (1996) |
| May 28 | 89.1°F (1951) | 19.9°F (2002) | 1.13 in (1996) |
| May 29 | 90.0°F (2010) | 33.1°F (1982) | 3.00 in (2019) |
| May 30 | 89.1°F (1969) | 30.9°F (1983) | 2.23 in (2011) |
| May 31 | 90.0°F (1960) | 32.0°F (1982) | 0.83 in (1951) |