December weather in Grantsville, MD
The average temperature in Grantsville in December is 30.1°F (21.3°F–38.9°F). Average precipitation: 3.06 inches. Average snowfall is 6.9 inches.
December is a winter month in Grantsville, and is cooler than the annual average of 47.1°F. Daily temperatures swing about 17.6°F between overnight low and afternoon high. Expect about 15 days with precipitation. Daylight averages about 9h 12m. For travel, December is cold.
Avg High
38.9°F
Avg Low
21.3°F
Precipitation
3.06 in
Snow
6.9 in
December records in Grantsville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 64.9°F (2001) | 14.0°F (2013) | 1.48 in (2010) |
| December 2 | 68.0°F (2006) | 14.0°F (2013) | 3.37 in (1974) |
| December 3 | 64.0°F (2018) | 9.0°F (2002) | 1.14 in (1991) |
| December 4 | 62.1°F (2001) | 3.0°F (2002) | 0.96 in (1990) |
| December 5 | 66.9°F (2001) | 3.0°F (2002) | 1.06 in (1993) |
| December 6 | 72.0°F (2001) | 3.9°F (2007) | 0.77 in (2013) |
| December 7 | 57.0°F (2011) | -4.0°F (2007) | 1.21 in (1976) |
| December 8 | 57.9°F (2004) | 3.9°F (2005) | 1.23 in (2011) |
| December 9 | 54.0°F (2012) | -2.9°F (2002) | 1.61 in (2009) |
| December 10 | 54.0°F (2007) | -6.0°F (2002) | 0.75 in (2007) |
| December 11 | 57.0°F (2015) | 3.0°F (2018) | 1.70 in (1992) |
| December 12 | 63.0°F (2007) | 9.0°F (2011) | 1.20 in (2008) |
| December 13 | 68.0°F (2015) | -2.9°F (2005) | 0.46 in (1979) |
| December 14 | 66.9°F (2015) | -7.1°F (2005) | 1.14 in (2007) |
| December 15 | 62.1°F (2015) | -4.0°F (2005) | 1.13 in (2018) |
| December 16 | 59.0°F (2008) | 3.0°F (2016) | 0.80 in (1990) |
| December 17 | 55.0°F (2003) | 5.0°F (2003) | 0.59 in (2008) |
| December 18 | 63.0°F (2016) | 8.1°F (2002) | 0.74 in (2001) |
| December 19 | 55.9°F (2016) | 8.1°F (2010) | 0.57 in (1995) |
| December 20 | 55.0°F (2008) | -6.0°F (2004) | 1.16 in (2008) |
| December 21 | 55.9°F (2013) | -0.9°F (2004) | 0.90 in (2012) |
| December 22 | 64.9°F (2013) | 1.0°F (2008) | 0.95 in (1970) |
| December 23 | 61.0°F (2013) | 1.0°F (2008) | 0.71 in (1970) |
| December 24 | 61.0°F (2015) | -2.9°F (2009) | 0.54 in (1963) |
| December 25 | 63.0°F (2015) | -4.0°F (2009) | 1.42 in (1978) |
| December 26 | 57.9°F (2015) | 3.9°F (2004) | 1.20 in (1975) |
| December 27 | 62.1°F (2016) | 10.0°F (2017) | 0.88 in (2012) |
| December 28 | 69.1°F (2015) | -6.0°F (2017) | 0.98 in (1990) |
| December 29 | 64.0°F (2008) | -5.1°F (2017) | 0.74 in (1967) |
| December 30 | 63.0°F (2003) | 1.0°F (2009) | 0.80 in (2013) |
| December 31 | 57.0°F (2015) | -0.9°F (2017) | 0.76 in (1969) |