September weather in Grantsville, WV
The average temperature in Grantsville in September is 67.0°F (54.2°F–79.8°F). Average precipitation: 3.67 inches.
September is a fall month in Grantsville, and is warmer than the annual average of 53.6°F. Daily temperatures swing about 25.6°F between overnight low and afternoon high. Daylight averages about 12h 14m. For travel, September is one of the best months of the year to visit.
Avg High
79.8°F
Avg Low
54.2°F
Precipitation
3.67 in
Daylight
12h 14m
September records in Grantsville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (1953) | 42.1°F (1967) | 3.40 in (1975) |
| September 2 | 102.0°F (1953) | 44.1°F (1967) | 2.20 in (1969) |
| September 3 | 100.0°F (1953) | 39.9°F (1967) | 3.18 in (2003) |
| September 4 | 100.0°F (1953) | 44.1°F (1967) | 2.76 in (2012) |
| September 5 | 98.1°F (2011) | 44.1°F (1950) | 0.90 in (1969) |
| September 6 | 97.0°F (1954) | 42.1°F (1962) | 1.70 in (1951) |
| September 7 | 97.0°F (1954) | 43.0°F (1956) | 1.84 in (2014) |
| September 8 | 95.0°F (1945) | 41.0°F (1951) | 3.00 in (2004) |
| September 9 | 95.0°F (2002) | 42.1°F (1949) | 2.37 in (2004) |
| September 10 | 97.0°F (2002) | 39.9°F (1966) | 0.82 in (2023) |
| September 11 | 96.1°F (2002) | 39.9°F (1967) | 1.47 in (2007) |
| September 12 | 96.1°F (1952) | 39.9°F (1967) | 0.50 in (1965) |
| September 13 | 97.0°F (1952) | 36.0°F (1967) | 2.00 in (1971) |
| September 14 | 96.1°F (1952) | 33.1°F (1964) | 1.73 in (2006) |
| September 15 | 91.0°F (2008) | 36.0°F (1964) | 0.62 in (1952) |
| September 16 | 91.9°F (1955) | 37.0°F (1966) | 1.20 in (1942) |
| September 17 | 95.0°F (1955) | 37.9°F (1966) | 2.52 in (2010) |
| September 18 | 95.0°F (1955) | 37.9°F (1959) | 1.90 in (2004) |
| September 19 | 93.0°F (1955) | 34.0°F (1959) | 1.71 in (2003) |
| September 20 | 91.9°F (1955) | 39.9°F (1956) | 1.00 in (2013) |
| September 21 | 93.0°F (1965) | 32.0°F (1956) | 1.20 in (1958) |
| September 22 | 91.0°F (1965) | 37.0°F (1962) | 1.96 in (1979) |
| September 23 | 91.0°F (1970) | 35.1°F (1953) | 1.10 in (1957) |
| September 24 | 91.9°F (2010) | 33.1°F (1963) | 1.70 in (1955) |
| September 25 | 91.9°F (2007) | 30.9°F (1967) | 0.80 in (1975) |
| September 26 | 93.0°F (2007) | 35.1°F (1950) | 1.40 in (1971) |
| September 27 | 91.0°F (2017) | 37.0°F (1950) | 2.00 in (2011) |
| September 28 | 91.9°F (1945) | 35.1°F (1947) | 1.36 in (2018) |
| September 29 | 91.9°F (1959) | 32.0°F (1951) | 2.00 in (1964) |
| September 30 | 96.1°F (1953) | 36.0°F (1951) | 0.80 in (2015) |