May weather in Grantsville, MD
The average temperature in Grantsville in May is 55.5°F (43.1°F–67.8°F). Average precipitation: 4.35 inches.
May is a spring month in Grantsville, and is warmer than the annual average of 47.1°F. Daily temperatures swing about 24.7°F between overnight low and afternoon high. Expect about 15 days with precipitation. Daylight averages about 14h 11m. For travel, May is a comfortable month to visit.
Avg High
67.8°F
Avg Low
43.1°F
Precipitation
4.35 in
Daylight
14h 11m
May records in Grantsville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 82.0°F (2017) | 28.0°F (2018) | 0.93 in (2015) |
| May 2 | 82.0°F (2010) | 28.9°F (2005) | 0.68 in (2017) |
| May 3 | 80.1°F (2018) | 28.9°F (2005) | 1.72 in (1985) |
| May 4 | 84.9°F (2018) | 21.0°F (2002) | 1.02 in (1975) |
| May 5 | 78.1°F (2012) | 26.1°F (2002) | 1.10 in (2009) |
| May 6 | 75.9°F (2010) | 26.1°F (2005) | 1.65 in (1971) |
| May 7 | 81.0°F (2015) | 27.0°F (2006) | 1.54 in (1967) |
| May 8 | 78.1°F (2015) | 28.0°F (2006) | 1.92 in (2013) |
| May 9 | 82.9°F (2015) | 28.0°F (2017) | 1.10 in (1996) |
| May 10 | 81.0°F (2007) | 26.1°F (2010) | 1.13 in (2008) |
| May 11 | 82.9°F (2015) | 26.1°F (2010) | 0.75 in (2003) |
| May 12 | 82.9°F (2015) | 32.0°F (2009) | 1.06 in (2008) |
| May 13 | 82.0°F (2018) | 30.0°F (2013) | 0.84 in (1971) |
| May 14 | 86.0°F (2014) | 26.1°F (2013) | 0.88 in (1978) |
| May 15 | 81.0°F (2018) | 26.1°F (2013) | 1.56 in (2006) |
| May 16 | 82.9°F (2013) | 33.1°F (2016) | 1.93 in (2014) |
| May 17 | 81.0°F (2017) | 35.1°F (2016) | 1.26 in (1998) |
| May 18 | 84.9°F (2017) | 27.0°F (2009) | 1.74 in (2011) |
| May 19 | 82.0°F (2015) | 26.1°F (2009) | 1.50 in (2011) |
| May 20 | 82.9°F (2019) | 26.1°F (2009) | 1.03 in (2000) |
| May 21 | 81.0°F (2013) | 27.0°F (2002) | 1.00 in (1980) |
| May 22 | 84.0°F (2013) | 25.0°F (2002) | 1.49 in (2004) |
| May 23 | 82.9°F (2013) | 26.1°F (2002) | 1.06 in (2010) |
| May 24 | 82.9°F (2009) | 28.9°F (2006) | 2.00 in (1968) |
| May 25 | 79.0°F (2007) | 32.0°F (2006) | 0.71 in (1970) |
| May 26 | 82.9°F (2015) | 32.0°F (2013) | 1.60 in (1990) |
| May 27 | 84.9°F (2012) | 32.0°F (2013) | 0.74 in (1987) |
| May 28 | 84.0°F (2012) | 33.1°F (2013) | 1.84 in (2014) |
| May 29 | 84.9°F (2012) | 34.0°F (2008) | 1.21 in (1984) |
| May 30 | 87.1°F (2006) | 35.1°F (2008) | 0.48 in (1992) |
| May 31 | 89.1°F (2006) | 41.0°F (2008) | 3.36 in (1980) |