May weather in Belle Fourche, SD
The average temperature in Belle Fourche in May is 56.0°F (43.5°F–68.5°F). Average precipitation: 3.04 inches. Average snowfall is 1.3 inches.
May is a spring month in Belle Fourche, and is warmer than the annual average of 47.9°F. Daily temperatures swing about 25°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 14h 37m. For travel, May is a comfortable month to visit.
Avg High
68.5°F
Avg Low
43.5°F
Precipitation
3.04 in
Snow
1.3 in
May records in Belle Fourche
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 93.0°F (1934) | 17.1°F (1950) | 1.79 in (1946) |
| May 2 | 86.0°F (1947) | 21.0°F (1984) | 1.49 in (2008) |
| May 3 | 93.9°F (1952) | 15.1°F (1954) | 0.70 in (1955) |
| May 4 | 91.9°F (1966) | 21.0°F (1921) | 0.93 in (1969) |
| May 5 | 93.9°F (1934) | 15.1°F (2019) | 1.22 in (1920) |
| May 6 | 88.0°F (1966) | 16.0°F (2019) | 0.98 in (1975) |
| May 7 | 93.9°F (1934) | 21.9°F (1910) | 0.97 in (1978) |
| May 8 | 96.1°F (1934) | 19.0°F (1929) | 3.90 in (1995) |
| May 9 | 89.1°F (1916) | 21.9°F (2019) | 1.93 in (1965) |
| May 10 | 91.9°F (1928) | 23.0°F (1927) | 1.58 in (1920) |
| May 11 | 91.9°F (1940) | 21.9°F (1968) | 1.40 in (1922) |
| May 12 | 89.1°F (1941) | 18.0°F (1943) | 0.84 in (1942) |
| May 13 | 95.0°F (2001) | 24.1°F (1934) | 1.40 in (1995) |
| May 14 | 93.0°F (1931) | 23.0°F (2019) | 1.15 in (1982) |
| May 15 | 93.9°F (1934) | 24.1°F (1921) | 1.84 in (1982) |
| May 16 | 98.1°F (1934) | 24.1°F (1923) | 1.25 in (1982) |
| May 17 | 95.0°F (1934) | 19.9°F (2019) | 0.85 in (1987) |
| May 18 | 95.0°F (1934) | 15.1°F (2019) | 0.91 in (1962) |
| May 19 | 93.9°F (1992) | 21.9°F (2019) | 0.75 in (2011) |
| May 20 | 97.0°F (1964) | 19.0°F (2019) | 4.25 in (1982) |
| May 21 | 95.0°F (1966) | 16.0°F (2019) | 1.09 in (2011) |
| May 22 | 97.0°F (1980) | 18.0°F (2019) | 1.56 in (1962) |
| May 23 | 93.9°F (1931) | 18.0°F (2019) | 2.06 in (1946) |
| May 24 | 93.0°F (1926) | 19.9°F (2019) | 0.95 in (1938) |
| May 25 | 97.0°F (1931) | 28.9°F (1924) | 1.86 in (2008) |
| May 26 | 97.0°F (1969) | 28.9°F (1992) | 2.56 in (1929) |
| May 27 | 102.9°F (1934) | 30.9°F (1992) | 1.23 in (1970) |
| May 28 | 102.9°F (1934) | 26.1°F (1924) | 0.95 in (1982) |
| May 29 | 99.0°F (1934) | 24.1°F (1947) | 1.10 in (1909) |
| May 30 | 98.1°F (1934) | 26.1°F (1947) | 1.55 in (1937) |
| May 31 | 93.9°F (2020) | 32.0°F (1917) | 0.86 in (1909) |