May weather in Grantsville, WV
The average temperature in Grantsville in May is 62.7°F (49.4°F–75.9°F). Average precipitation: 5.59 inches.
May is a spring month in Grantsville, and is warmer than the annual average of 53.6°F. Daily temperatures swing about 26.5°F between overnight low and afternoon high. Daylight averages about 14h 8m. For travel, May is a wet month.
Avg High
75.9°F
Avg Low
49.4°F
Precipitation
5.59 in
Daylight
14h 8m
May records in Grantsville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 93.0°F (1942) | 25.0°F (1963) | 1.87 in (1966) |
| May 2 | 91.9°F (1942) | 27.0°F (1968) | 1.20 in (2017) |
| May 3 | 90.0°F (1954) | 28.0°F (1978) | 2.02 in (2010) |
| May 4 | 91.0°F (2012) | 24.1°F (1978) | 1.80 in (2020) |
| May 5 | 89.1°F (1955) | 28.9°F (1966) | 1.46 in (2012) |
| May 6 | 91.9°F (1949) | 28.9°F (1968) | 1.01 in (1961) |
| May 7 | 93.0°F (1949) | 26.1°F (1968) | 3.00 in (1967) |
| May 8 | 91.9°F (2015) | 10.9°F (1943) | 1.50 in (1960) |
| May 9 | 91.9°F (2015) | 10.9°F (1943) | 1.30 in (1969) |
| May 10 | 91.0°F (1963) | 16.0°F (1943) | 1.77 in (2003) |
| May 11 | 91.9°F (1948) | 16.0°F (1943) | 4.50 in (2003) |
| May 12 | 91.9°F (1948) | 24.1°F (1966) | 2.85 in (1974) |
| May 13 | 90.0°F (1979) | 30.9°F (2020) | 1.07 in (1971) |
| May 14 | 91.9°F (1962) | 6.1°F (1943) | 1.30 in (1946) |
| May 15 | 93.0°F (1962) | 5.0°F (1943) | 1.12 in (2005) |
| May 16 | 91.9°F (1962) | 5.0°F (1943) | 0.90 in (1972) |
| May 17 | 93.0°F (1962) | 33.1°F (2016) | 1.00 in (1941) |
| May 18 | 93.9°F (1962) | 35.1°F (1955) | 1.45 in (2002) |
| May 19 | 93.9°F (1962) | 35.1°F (1976) | 1.19 in (1942) |
| May 20 | 90.0°F (1957) | 33.1°F (2002) | 1.44 in (2005) |
| May 21 | 90.0°F (1960) | 35.1°F (1954) | 0.80 in (2020) |
| May 22 | 91.9°F (1970) | 30.9°F (2002) | 1.10 in (1949) |
| May 23 | 91.0°F (1977) | 30.9°F (2002) | 1.67 in (2018) |
| May 24 | 91.0°F (1966) | 34.0°F (1956) | 1.76 in (1968) |
| May 25 | 90.0°F (1977) | 34.0°F (1956) | 1.09 in (2009) |
| May 26 | 91.0°F (2020) | 36.0°F (1961) | 0.65 in (1961) |
| May 27 | 90.0°F (1953) | 34.0°F (1961) | 2.20 in (1946) |
| May 28 | 90.0°F (1955) | 33.1°F (1961) | 2.07 in (2004) |
| May 29 | 91.0°F (1955) | 39.0°F (1949) | 1.70 in (2021) |
| May 30 | 91.0°F (2006) | 37.9°F (1961) | 1.71 in (2003) |
| May 31 | 93.0°F (1953) | 35.1°F (1966) | 0.85 in (2009) |