May weather in Harman, WV
The average temperature in Harman in May is 54.8°F (45.7°F–63.9°F). Average precipitation: 5.77 inches.
May is a spring month in Harman, and is warmer than the annual average of 46.5°F. Daily temperatures swing about 18.2°F between overnight low and afternoon high. Expect about 18 days with precipitation. Daylight averages about 14h 8m. For travel, May is a wet month.
Avg High
63.9°F
Avg Low
45.7°F
Precipitation
5.77 in
Daylight
14h 8m
May records in Harman
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 79.9°F (2010) | 29.5°F (2021) | 0.63 in (2022) |
| May 2 | 77.2°F (2024) | 30.4°F (2023) | 1.00 in (2023) |
| May 3 | 79.2°F (2018) | 29.1°F (2023) | 1.30 in (2020) |
| May 4 | 73.0°F (2018) | 28.9°F (2005) | 1.00 in (2021) |
| May 5 | 72.1°F (2010) | 29.1°F (2014) | 1.76 in (2018) |
| May 6 | 72.9°F (2004) | 31.6°F (2020) | 1.59 in (2022) |
| May 7 | 77.0°F (2010) | 29.1°F (2006) | 1.66 in (2013) |
| May 8 | 77.7°F (2015) | 24.6°F (2020) | 0.71 in (2012) |
| May 9 | 78.3°F (2015) | 20.7°F (2020) | 1.41 in (2008) |
| May 10 | 77.2°F (2015) | 27.5°F (2010) | 0.41 in (2024) |
| May 11 | 78.4°F (2015) | 29.7°F (2020) | 1.02 in (2017) |
| May 12 | 77.4°F (2018) | 29.3°F (2020) | 0.80 in (2019) |
| May 13 | 79.2°F (2014) | 29.8°F (2021) | 1.82 in (2025) |
| May 14 | 77.7°F (2018) | 28.2°F (2013) | 2.50 in (2012) |
| May 15 | 78.1°F (2013) | 29.8°F (2016) | 1.88 in (2014) |
| May 16 | 74.7°F (2009) | 30.4°F (2016) | 1.15 in (2007) |
| May 17 | 80.6°F (2017) | 33.4°F (2005) | 1.89 in (2011) |
| May 18 | 75.4°F (2015) | 27.5°F (2009) | 1.54 in (2007) |
| May 19 | 75.2°F (2017) | 26.6°F (2009) | 1.00 in (2004) |
| May 20 | 77.2°F (2021) | 35.6°F (2009) | 1.35 in (2005) |
| May 21 | 80.1°F (2022) | 32.7°F (2005) | 1.08 in (2016) |
| May 22 | 78.4°F (2009) | 32.0°F (2006) | 0.80 in (2025) |
| May 23 | 77.7°F (2009) | 30.6°F (2006) | 0.54 in (2010) |
| May 24 | 75.2°F (2009) | 32.0°F (2013) | 0.42 in (2005) |
| May 25 | 78.4°F (2021) | 29.1°F (2013) | 0.55 in (2017) |
| May 26 | 78.8°F (2012) | 33.3°F (2013) | 0.94 in (2004) |
| May 27 | 80.2°F (2012) | 31.1°F (2013) | 1.02 in (2004) |
| May 28 | 79.9°F (2012) | 38.5°F (2008) | 0.92 in (2025) |
| May 29 | 81.5°F (2006) | 37.2°F (2008) | 0.20 in (2014) |
| May 30 | 82.0°F (2006) | 39.2°F (2021) | 0.90 in (2019) |
| May 31 | 81.5°F (2006) | 31.6°F (2024) | 1.94 in (2008) |