May weather in McLaughlin, SD
The average temperature in McLaughlin in May is 55.0°F (41.9°F–68.1°F). Average precipitation: 3.17 inches. Average snowfall is 0.2 inches.
May is a spring month in McLaughlin, and is warmer than the annual average of 43.3°F. Daily temperatures swing about 26.2°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 44m. For travel, May is a comfortable month to visit.
Avg High
68.1°F
Avg Low
41.9°F
Precipitation
3.17 in
Snow
0.2 in
May records in McLaughlin
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 90.0°F (1959) | 19.0°F (1961) | 2.32 in (1972) |
| May 2 | 88.0°F (1955) | 19.0°F (1967) | 1.40 in (2008) |
| May 3 | 89.1°F (2015) | 15.1°F (1967) | 2.10 in (1999) |
| May 4 | 91.0°F (1966) | 17.1°F (1954) | 0.85 in (2003) |
| May 5 | 93.0°F (1985) | 18.0°F (1967) | 1.14 in (1959) |
| May 6 | 89.1°F (2016) | 23.0°F (1989) | 1.27 in (1983) |
| May 7 | 95.0°F (1953) | 21.9°F (1980) | 0.66 in (1996) |
| May 8 | 91.0°F (2017) | 19.0°F (1980) | 2.43 in (1986) |
| May 9 | 91.0°F (1992) | 23.0°F (1981) | 0.74 in (1965) |
| May 10 | 89.1°F (1987) | 24.1°F (1981) | 2.27 in (1982) |
| May 11 | 89.1°F (1958) | 21.9°F (2020) | 0.52 in (1966) |
| May 12 | 95.0°F (2025) | 25.0°F (2020) | 1.98 in (2022) |
| May 13 | 95.0°F (2025) | 23.0°F (2004) | 1.44 in (2023) |
| May 14 | 91.9°F (2013) | 24.1°F (1973) | 1.02 in (1999) |
| May 15 | 93.0°F (1987) | 23.0°F (2014) | 1.94 in (2025) |
| May 16 | 93.0°F (1984) | 26.1°F (2009) | 1.35 in (2025) |
| May 17 | 91.9°F (1970) | 26.1°F (1969) | 1.20 in (1962) |
| May 18 | 93.9°F (1948) | 28.9°F (2002) | 1.58 in (2018) |
| May 19 | 96.1°F (1992) | 28.0°F (2003) | 1.47 in (2013) |
| May 20 | 96.1°F (1992) | 26.1°F (1968) | 1.37 in (1987) |
| May 21 | 97.0°F (1980) | 27.0°F (1963) | 1.83 in (2011) |
| May 22 | 91.9°F (1966) | 19.9°F (1992) | 1.02 in (1962) |
| May 23 | 89.1°F (1980) | 23.0°F (2002) | 1.76 in (2020) |
| May 24 | 90.0°F (1977) | 30.0°F (1968) | 1.00 in (1987) |
| May 25 | 93.0°F (2018) | 32.0°F (1984) | 3.59 in (2013) |
| May 26 | 91.0°F (1980) | 27.0°F (1992) | 2.00 in (1973) |
| May 27 | 100.0°F (1969) | 27.0°F (1992) | 1.09 in (2013) |
| May 28 | 98.1°F (2006) | 28.0°F (1965) | 1.25 in (1955) |
| May 29 | 91.9°F (2010) | 36.0°F (1983) | 2.25 in (1949) |
| May 30 | 91.0°F (1958) | 33.1°F (2015) | 1.00 in (2004) |
| May 31 | 88.0°F (1986) | 30.9°F (1964) | 1.33 in (2007) |