May weather in Union, WV
The average temperature in Union in May is 61.1°F (48.2°F–74.0°F). Average precipitation: 4.60 inches.
May is a spring month in Union, and is warmer than the annual average of 52.8°F. Daily temperatures swing about 25.8°F between overnight low and afternoon high. Expect about 15 days with precipitation. Daylight averages about 14h 1m. For travel, May is a comfortable month to visit.
Avg High
74.0°F
Avg Low
48.2°F
Precipitation
4.60 in
Daylight
14h 1m
May records in Union
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 91.9°F (1942) | 25.0°F (1909) | 1.50 in (1919) |
| May 2 | 90.0°F (1942) | 21.9°F (1943) | 2.09 in (1932) |
| May 3 | 90.0°F (1930) | 24.1°F (1924) | 1.48 in (2002) |
| May 4 | 90.0°F (1928) | 21.0°F (1986) | 0.92 in (2009) |
| May 5 | 93.9°F (1928) | 27.0°F (1910) | 1.00 in (1906) |
| May 6 | 88.0°F (1926) | 24.1°F (1910) | 1.35 in (1944) |
| May 7 | 89.1°F (1926) | 25.0°F (1970) | 1.19 in (1971) |
| May 8 | 90.0°F (1926) | 27.0°F (1925) | 1.56 in (1960) |
| May 9 | 91.9°F (1936) | 21.0°F (1947) | 1.75 in (2009) |
| May 10 | 91.0°F (1926) | 21.9°F (1947) | 1.16 in (1909) |
| May 11 | 88.0°F (1936) | 23.0°F (1913) | 1.38 in (1981) |
| May 12 | 87.1°F (1930) | 24.1°F (1913) | 1.51 in (1924) |
| May 13 | 86.0°F (1911) | 28.0°F (1996) | 1.66 in (1974) |
| May 14 | 86.0°F (1957) | 26.1°F (1941) | 2.00 in (1919) |
| May 15 | 88.0°F (1962) | 26.1°F (1910) | 1.00 in (1895) |
| May 16 | 88.0°F (1947) | 28.9°F (1973) | 1.78 in (2001) |
| May 17 | 88.0°F (1941) | 28.0°F (1984) | 1.15 in (1963) |
| May 18 | 89.1°F (1962) | 28.0°F (1973) | 1.96 in (1904) |
| May 19 | 90.0°F (1911) | 28.0°F (2002) | 2.02 in (1999) |
| May 20 | 90.0°F (1943) | 27.0°F (2002) | 1.40 in (1938) |
| May 21 | 93.9°F (1934) | 28.0°F (1907) | 1.35 in (1931) |
| May 22 | 95.0°F (1941) | 25.0°F (2002) | 1.38 in (1942) |
| May 23 | 95.0°F (1941) | 30.9°F (1997) | 0.76 in (1915) |
| May 24 | 95.0°F (1910) | 32.0°F (1926) | 1.38 in (1979) |
| May 25 | 90.0°F (1939) | 28.9°F (1941) | 2.34 in (1996) |
| May 26 | 91.9°F (1941) | 28.0°F (1925) | 1.10 in (1909) |
| May 27 | 90.0°F (1911) | 27.0°F (1925) | 2.00 in (1917) |
| May 28 | 90.0°F (1918) | 28.9°F (1994) | 1.24 in (1973) |
| May 29 | 93.0°F (1918) | 32.0°F (1949) | 1.21 in (1929) |
| May 30 | 93.0°F (1914) | 32.0°F (1936) | 2.00 in (1971) |
| May 31 | 91.9°F (1918) | 30.9°F (1947) | 1.22 in (2004) |