May weather in Fort Pierre, SD
The average temperature in Fort Pierre in May is 57.2°F (44.9°F–69.5°F). Average precipitation: 3.25 inches.
May is a spring month in Fort Pierre, and is warmer than the annual average of 47°F. Daily temperatures swing about 24.6°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 14h 36m. For travel, May is a comfortable month to visit.
Avg High
69.5°F
Avg Low
44.9°F
Precipitation
3.25 in
Daylight
14h 36m
May records in Fort Pierre
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 98.1°F (1959) | 21.9°F (1950) | 2.13 in (1972) |
| May 2 | 91.9°F (1955) | 22.1°F (2013) | 1.76 in (1964) |
| May 3 | 93.9°F (1982) | 21.2°F (2013) | 1.20 in (1905) |
| May 4 | 95.0°F (2000) | 23.0°F (1967) | 1.11 in (2020) |
| May 5 | 97.0°F (2000) | 21.9°F (1944) | 1.85 in (1999) |
| May 6 | 89.1°F (1934) | 24.1°F (1976) | 1.26 in (1932) |
| May 7 | 95.0°F (1963) | 23.0°F (1943) | 1.24 in (2000) |
| May 8 | 102.9°F (1934) | 25.0°F (1945) | 1.69 in (2003) |
| May 9 | 93.0°F (1934) | 28.0°F (1966) | 1.94 in (1927) |
| May 10 | 91.0°F (1985) | 24.1°F (1981) | 1.52 in (2015) |
| May 11 | 93.9°F (1940) | 23.2°F (2020) | 1.15 in (2005) |
| May 12 | 95.0°F (2025) | 21.9°F (1943) | 1.10 in (1920) |
| May 13 | 99.0°F (1941) | 24.1°F (1953) | 2.72 in (1982) |
| May 14 | 93.9°F (2001) | 28.0°F (2004) | 1.56 in (1908) |
| May 15 | 96.1°F (1936) | 25.2°F (2014) | 0.83 in (2025) |
| May 16 | 98.1°F (1934) | 28.9°F (2009) | 2.03 in (1962) |
| May 17 | 102.9°F (1934) | 32.0°F (2002) | 1.26 in (2018) |
| May 18 | 102.9°F (1934) | 26.1°F (2002) | 1.96 in (1960) |
| May 19 | 102.0°F (1992) | 29.1°F (2015) | 2.42 in (1921) |
| May 20 | 93.9°F (1934) | 27.0°F (2002) | 1.51 in (1994) |
| May 21 | 93.0°F (1980) | 32.0°F (1968) | 1.54 in (2019) |
| May 22 | 93.9°F (1966) | 27.0°F (1963) | 1.98 in (2007) |
| May 23 | 90.0°F (1984) | 33.1°F (1992) | 1.54 in (1914) |
| May 24 | 90.0°F (1959) | 28.0°F (2002) | 1.70 in (1944) |
| May 25 | 95.0°F (1941) | 34.0°F (1992) | 1.22 in (1907) |
| May 26 | 96.1°F (2006) | 28.9°F (1992) | 1.81 in (1955) |
| May 27 | 105.1°F (1969) | 32.0°F (1992) | 1.35 in (1984) |
| May 28 | 105.1°F (1934) | 28.9°F (1965) | 2.43 in (1991) |
| May 29 | 100.9°F (1934) | 24.1°F (1947) | 2.36 in (1941) |
| May 30 | 102.9°F (1934) | 32.0°F (1947) | 1.53 in (2014) |
| May 31 | 95.0°F (1934) | 33.1°F (2012) | 2.46 in (1949) |