May weather in Grafton, ND
The average temperature in Grafton in May is 57.3°F (46.1°F–68.4°F). Average precipitation: inches.
May is a spring month in Grafton, and is warmer than the annual average of 42°F. Daily temperatures swing about 22.3°F between overnight low and afternoon high. Daylight averages about 15h 0m. For travel, May is a comfortable month to visit.
Avg High
68.4°F
Avg Low
46.1°F
Precipitation
in
Daylight
15h 0m
May records in Grafton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 88.0°F (1918) | 17.1°F (1966) | 0.92 in (1938) |
| May 2 | 90.0°F (1980) | 16.0°F (1967) | 0.50 in (1965) |
| May 3 | 96.1°F (1980) | 10.0°F (1926) | 0.73 in (1927) |
| May 4 | 96.1°F (1985) | 21.0°F (1967) | 0.68 in (1950) |
| May 5 | 98.1°F (1926) | 19.0°F (1968) | 1.30 in (1977) |
| May 6 | 91.9°F (1934) | 17.1°F (1906) | 0.66 in (1950) |
| May 7 | 90.0°F (1953) | 18.0°F (1906) | 1.55 in (2001) |
| May 8 | 91.9°F (1934) | 19.9°F (1955) | 1.30 in (1927) |
| May 9 | 91.0°F (1934) | 21.0°F (1929) | 1.87 in (1927) |
| May 10 | 93.0°F (1987) | 10.9°F (1929) | 1.00 in (2003) |
| May 11 | 97.0°F (1906) | 18.0°F (1946) | 1.31 in (1922) |
| May 12 | 98.1°F (1900) | 15.1°F (1946) | 1.53 in (1930) |
| May 13 | 93.9°F (1900) | 21.0°F (1953) | 0.60 in (1995) |
| May 14 | 91.9°F (1977) | 24.1°F (1914) | 0.76 in (1906) |
| May 15 | 96.1°F (1987) | 25.0°F (1907) | 0.95 in (1896) |
| May 16 | 91.0°F (1901) | 21.0°F (1983) | 1.73 in (1915) |
| May 17 | 93.9°F (1901) | 17.1°F (1925) | 2.90 in (1996) |
| May 18 | 95.0°F (1901) | 26.1°F (1915) | 3.50 in (1896) |
| May 19 | 93.9°F (1925) | 24.1°F (1924) | 1.40 in (1994) |
| May 20 | 93.0°F (1992) | 19.9°F (1907) | 1.34 in (1974) |
| May 21 | 100.0°F (1964) | 25.0°F (1924) | 1.38 in (1987) |
| May 22 | 100.0°F (1980) | 24.1°F (1963) | 1.34 in (1991) |
| May 23 | 100.0°F (1980) | 28.0°F (1929) | 1.10 in (1925) |
| May 24 | 93.9°F (1928) | 21.9°F (1949) | 1.19 in (1981) |
| May 25 | 91.9°F (1929) | 28.9°F (1954) | 1.92 in (2009) |
| May 26 | 91.9°F (1969) | 28.9°F (1906) | 0.90 in (1911) |
| May 27 | 102.9°F (1934) | 21.9°F (1907) | 0.95 in (1998) |
| May 28 | 100.9°F (1934) | 25.0°F (1947) | 1.57 in (1988) |
| May 29 | 95.0°F (1939) | 26.1°F (1947) | 1.10 in (1977) |
| May 30 | 107.1°F (1934) | 27.0°F (1947) | 2.12 in (1953) |
| May 31 | 98.1°F (1934) | 27.0°F (1897) | 1.13 in (1943) |