December weather in Grantsville, WV
The average temperature in Grantsville in December is 35.5°F (25.5°F–45.6°F). Average precipitation: 3.90 inches.
December is a winter month in Grantsville, and is cooler than the annual average of 53.6°F. Daily temperatures swing about 20.1°F between overnight low and afternoon high. Daylight averages about 9h 17m. For travel, December is cool.
Avg High
45.6°F
Avg Low
25.5°F
Precipitation
3.90 in
Daylight
9h 17m
December records in Grantsville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 71.1°F (1975) | 1.9°F (1964) | 2.37 in (2010) |
| December 2 | 73.0°F (2006) | 3.9°F (1976) | 1.54 in (2015) |
| December 3 | 66.9°F (1962) | 3.9°F (1976) | 0.90 in (2007) |
| December 4 | 70.0°F (1962) | 8.1°F (1966) | 2.50 in (1978) |
| December 5 | 72.0°F (2001) | 8.1°F (1966) | 0.54 in (2002) |
| December 6 | 77.0°F (2001) | 6.1°F (2007) | 1.72 in (2013) |
| December 7 | 73.9°F (1956) | 3.9°F (1977) | 1.20 in (1957) |
| December 8 | 73.9°F (2004) | 1.0°F (1977) | 0.90 in (1978) |
| December 9 | 75.0°F (1966) | 7.0°F (1962) | 1.48 in (2009) |
| December 10 | 75.0°F (1952) | 0.0°F (1958) | 1.10 in (2007) |
| December 11 | 80.1°F (1971) | 1.9°F (1958) | 1.30 in (1944) |
| December 12 | 73.0°F (2007) | -5.1°F (1962) | 1.19 in (2008) |
| December 13 | 73.0°F (2015) | -14.1°F (1962) | 1.57 in (1949) |
| December 14 | 69.1°F (1948) | -16.1°F (1962) | 2.06 in (1956) |
| December 15 | 71.1°F (2001) | -14.1°F (1962) | 1.95 in (1948) |
| December 16 | 75.9°F (1971) | 3.9°F (1958) | 1.66 in (1948) |
| December 17 | 69.1°F (2021) | 5.0°F (1963) | 1.43 in (2019) |
| December 18 | 70.0°F (1977) | 3.9°F (1953) | 1.00 in (2016) |
| December 19 | 69.1°F (1967) | 6.1°F (1953) | 0.90 in (2009) |
| December 20 | 66.9°F (1957) | -5.1°F (1963) | 0.44 in (2002) |
| December 21 | 70.0°F (1957) | -6.0°F (1942) | 1.40 in (1978) |
| December 22 | 73.0°F (1949) | -5.1°F (1963) | 2.13 in (1970) |
| December 23 | 68.0°F (1949) | 1.9°F (1960) | 1.01 in (1970) |
| December 24 | 70.0°F (2015) | 3.0°F (1976) | 0.86 in (1961) |
| December 25 | 72.0°F (1964) | -0.9°F (1980) | 1.17 in (2020) |
| December 26 | 66.0°F (2021) | -0.9°F (1980) | 1.32 in (1975) |
| December 27 | 68.0°F (2019) | 1.9°F (1950) | 0.68 in (1964) |
| December 28 | 73.9°F (2008) | -0.9°F (1969) | 1.27 in (2011) |
| December 29 | 68.0°F (2008) | 5.0°F (1950) | 0.70 in (1954) |
| December 30 | 70.0°F (1954) | 0.0°F (1963) | 0.90 in (1954) |
| December 31 | 69.1°F (1971) | 0.0°F (1963) | 0.98 in (1969) |