May weather in Ethan, SD
The average temperature in Ethan in May is 56.9°F (44.4°F–69.4°F). Average precipitation: 3.64 inches.
May is a spring month in Ethan, and is warmer than the annual average of 45°F. Daily temperatures swing about 25°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 14h 31m. For travel, May is a comfortable month to visit.
Avg High
69.4°F
Avg Low
44.4°F
Precipitation
3.64 in
Daylight
14h 31m
May records in Ethan
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 96.1°F (1959) | 21.0°F (1909) | 2.50 in (1972) |
| May 2 | 95.0°F (1959) | 16.0°F (1907) | 1.42 in (1997) |
| May 3 | 93.9°F (1949) | 19.0°F (1967) | 1.70 in (1902) |
| May 4 | 98.1°F (1926) | 21.0°F (1967) | 1.86 in (1934) |
| May 5 | 97.0°F (2004) | 26.1°F (1921) | 4.85 in (2007) |
| May 6 | 90.0°F (1916) | 21.9°F (1925) | 1.63 in (1942) |
| May 7 | 96.1°F (1916) | 23.0°F (1943) | 1.01 in (1978) |
| May 8 | 99.0°F (1934) | 23.0°F (1923) | 1.73 in (1986) |
| May 9 | 97.0°F (1934) | 25.0°F (1966) | 1.57 in (1918) |
| May 10 | 91.0°F (1987) | 26.1°F (1981) | 0.94 in (1903) |
| May 11 | 98.1°F (1900) | 19.0°F (1946) | 5.10 in (1920) |
| May 12 | 93.0°F (1900) | 21.9°F (1946) | 1.22 in (1972) |
| May 13 | 96.1°F (1894) | 26.1°F (1895) | 1.64 in (1942) |
| May 14 | 98.1°F (1894) | 28.0°F (2004) | 1.40 in (1990) |
| May 15 | 97.0°F (1894) | 26.1°F (1959) | 1.15 in (1951) |
| May 16 | 96.1°F (1934) | 21.9°F (1929) | 1.28 in (2004) |
| May 17 | 102.0°F (1934) | 25.0°F (1925) | 1.50 in (1898) |
| May 18 | 102.0°F (1934) | 30.0°F (2002) | 2.15 in (1938) |
| May 19 | 102.0°F (1934) | 24.1°F (1895) | 2.70 in (1913) |
| May 20 | 100.0°F (1934) | 21.9°F (1895) | 2.44 in (2013) |
| May 21 | 95.0°F (1964) | 24.1°F (1895) | 3.61 in (1893) |
| May 22 | 95.0°F (1925) | 25.0°F (1931) | 2.38 in (1936) |
| May 23 | 100.0°F (1926) | 26.1°F (1897) | 2.80 in (1909) |
| May 24 | 99.0°F (1926) | 27.0°F (1924) | 1.60 in (1909) |
| May 25 | 102.0°F (1967) | 24.1°F (1925) | 1.58 in (1920) |
| May 26 | 97.0°F (1895) | 28.9°F (1895) | 2.55 in (1908) |
| May 27 | 93.9°F (2006) | 28.0°F (1907) | 1.67 in (1984) |
| May 28 | 102.0°F (1934) | 28.9°F (1965) | 1.86 in (1991) |
| May 29 | 102.9°F (1934) | 30.0°F (1947) | 1.64 in (1985) |
| May 30 | 108.0°F (1934) | 34.0°F (1930) | 2.30 in (1982) |
| May 31 | 102.9°F (1934) | 30.0°F (1964) | 2.70 in (2022) |