May weather in Roslyn, SD
The average temperature in Roslyn in May is 57.1°F (46.6°F–67.6°F). Average precipitation: 2.93 inches.
May is a spring month in Roslyn, and is warmer than the annual average of 44.1°F. Daily temperatures swing about 21°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 14h 42m. For travel, May is a comfortable month to visit.
Avg High
67.6°F
Avg Low
46.6°F
Precipitation
2.93 in
Daylight
14h 42m
May records in Roslyn
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 96.1°F (1959) | 19.0°F (1961) | 1.25 in (1972) |
| May 2 | 95.0°F (1959) | 19.0°F (1967) | 0.88 in (2022) |
| May 3 | 87.1°F (1981) | 19.9°F (2013) | 1.05 in (1991) |
| May 4 | 84.9°F (1980) | 23.0°F (1967) | 0.67 in (2007) |
| May 5 | 87.1°F (2004) | 28.0°F (1968) | 2.22 in (2007) |
| May 6 | 87.1°F (2016) | 25.0°F (1976) | 1.20 in (1961) |
| May 7 | 86.0°F (1970) | 25.0°F (1976) | 0.86 in (2024) |
| May 8 | 84.9°F (1970) | 25.0°F (1989) | 2.65 in (2002) |
| May 9 | 87.1°F (1987) | 24.1°F (1966) | 2.31 in (2022) |
| May 10 | 88.0°F (1987) | 25.0°F (1981) | 0.73 in (2008) |
| May 11 | 82.9°F (1987) | 28.0°F (1979) | 1.15 in (1956) |
| May 12 | 84.9°F (1977) | 27.0°F (1979) | 3.41 in (1998) |
| May 13 | 86.0°F (1977) | 26.1°F (1953) | 1.22 in (1972) |
| May 14 | 88.0°F (1991) | 27.0°F (1983) | 1.55 in (1957) |
| May 15 | 84.9°F (1977) | 25.0°F (1959) | 1.19 in (1991) |
| May 16 | 87.1°F (1987) | 32.0°F (1961) | 2.50 in (1962) |
| May 17 | 89.1°F (1972) | 27.0°F (1986) | 1.62 in (1961) |
| May 18 | 88.0°F (1972) | 30.0°F (1968) | 1.02 in (1996) |
| May 19 | 84.9°F (1972) | 30.9°F (2002) | 0.75 in (1990) |
| May 20 | 86.0°F (1955) | 32.0°F (1967) | 1.54 in (2025) |
| May 21 | 93.0°F (1964) | 28.9°F (1963) | 1.41 in (1988) |
| May 22 | 91.0°F (1964) | 24.1°F (1963) | 1.10 in (2011) |
| May 23 | 84.0°F (1989) | 32.0°F (1992) | 1.93 in (1962) |
| May 24 | 82.0°F (1980) | 30.9°F (2002) | 2.26 in (1973) |
| May 25 | 88.0°F (1959) | 33.1°F (1983) | 0.94 in (1957) |
| May 26 | 89.1°F (2018) | 30.9°F (1984) | 1.10 in (1960) |
| May 27 | 91.0°F (1969) | 30.0°F (1965) | 0.89 in (1952) |
| May 28 | 91.9°F (1969) | 30.0°F (1965) | 1.25 in (1956) |
| May 29 | 88.0°F (1958) | 39.0°F (1952) | 1.06 in (1991) |
| May 30 | 95.0°F (1953) | 34.0°F (2015) | 1.15 in (1959) |
| May 31 | 86.0°F (2002) | 36.0°F (1964) | 2.00 in (2022) |