May weather in Lebanon, SD
The average temperature in Lebanon in May is 55.7°F (43.8°F–67.5°F). Average precipitation: 3.03 inches. Average snowfall is 0.3 inches.
May is a spring month in Lebanon, and is warmer than the annual average of 44.3°F. Daily temperatures swing about 23.7°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 40m. For travel, May is a comfortable month to visit.
Avg High
67.5°F
Avg Low
43.8°F
Precipitation
3.03 in
Snow
0.3 in
May records in Lebanon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 96.1°F (1959) | 21.0°F (1950) | 1.57 in (1972) |
| May 2 | 91.9°F (1959) | 19.0°F (1967) | 1.72 in (1997) |
| May 3 | 90.0°F (1901) | 19.9°F (1967) | 0.87 in (1964) |
| May 4 | 91.9°F (1982) | 19.9°F (1944) | 0.50 in (1901) |
| May 5 | 91.9°F (2000) | 19.0°F (1944) | 3.02 in (1999) |
| May 6 | 95.0°F (1934) | 23.0°F (1931) | 0.86 in (2000) |
| May 7 | 90.0°F (1934) | 21.0°F (1943) | 1.82 in (1983) |
| May 8 | 98.1°F (2013) | 19.9°F (1945) | 1.03 in (1931) |
| May 9 | 91.9°F (1985) | 21.9°F (1966) | 2.60 in (1986) |
| May 10 | 91.9°F (1992) | 23.0°F (1945) | 1.23 in (2015) |
| May 11 | 90.0°F (1987) | 21.0°F (1946) | 1.60 in (2015) |
| May 12 | 90.0°F (2004) | 16.0°F (1946) | 1.30 in (1983) |
| May 13 | 91.9°F (1941) | 26.1°F (1966) | 1.06 in (1958) |
| May 14 | 91.9°F (1969) | 26.1°F (1953) | 1.26 in (1965) |
| May 15 | 99.0°F (1931) | 24.1°F (2014) | 1.12 in (1982) |
| May 16 | 95.0°F (1934) | 30.9°F (2014) | 1.03 in (1982) |
| May 17 | 100.0°F (1934) | 26.1°F (2009) | 1.34 in (1961) |
| May 18 | 98.1°F (1934) | 30.9°F (1968) | 2.85 in (2013) |
| May 19 | 98.1°F (1934) | 30.9°F (2015) | 1.70 in (1990) |
| May 20 | 100.0°F (1992) | 26.1°F (1931) | 1.67 in (1957) |
| May 21 | 91.0°F (1964) | 23.0°F (1931) | 1.00 in (1982) |
| May 22 | 91.0°F (1966) | 28.0°F (1931) | 1.28 in (2007) |
| May 23 | 90.0°F (1967) | 34.0°F (1947) | 1.05 in (2011) |
| May 24 | 87.1°F (1931) | 30.0°F (1974) | 0.55 in (1965) |
| May 25 | 93.9°F (1931) | 30.9°F (1901) | 1.60 in (1932) |
| May 26 | 95.0°F (1934) | 30.0°F (1992) | 0.94 in (1944) |
| May 27 | 102.9°F (1969) | 30.0°F (1965) | 4.03 in (1956) |
| May 28 | 104.0°F (1934) | 28.0°F (1952) | 0.73 in (1959) |
| May 29 | 96.1°F (1934) | 27.0°F (1947) | 1.84 in (1973) |
| May 30 | 104.0°F (1934) | 30.0°F (1947) | 2.15 in (1943) |
| May 31 | 99.0°F (1934) | 32.0°F (2012) | 2.34 in (2022) |