May weather in Grandfalls, TX
The average temperature in Grandfalls in May is 75.1°F (58.3°F–92.0°F). Average precipitation: 1.49 inches.
May is a spring month in Grandfalls, and is warmer than the annual average of 65°F. Daily temperatures swing about 33.7°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 13h 36m. For travel, May is hot.
Avg High
92.0°F
Avg Low
58.3°F
Precipitation
1.49 in
Daylight
13h 36m
May records in Grandfalls
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 102.9°F (2009) | 37.0°F (1942) | 0.81 in (1987) |
| May 2 | 100.9°F (2012) | 28.0°F (2013) | 0.65 in (2007) |
| May 3 | 100.9°F (1996) | 33.1°F (1967) | 0.95 in (1928) |
| May 4 | 102.9°F (2012) | 37.9°F (1945) | 1.49 in (1980) |
| May 5 | 106.0°F (1947) | 33.1°F (1944) | 1.71 in (1982) |
| May 6 | 105.1°F (1984) | 35.1°F (1944) | 1.07 in (1972) |
| May 7 | 109.0°F (2009) | 39.0°F (1990) | 1.50 in (1940) |
| May 8 | 109.0°F (2009) | 43.0°F (1975) | 1.80 in (1932) |
| May 9 | 109.0°F (1989) | 43.0°F (1984) | 1.65 in (1940) |
| May 10 | 106.0°F (1967) | 39.0°F (1981) | 2.60 in (1947) |
| May 11 | 102.9°F (1984) | 39.0°F (1981) | 0.48 in (1975) |
| May 12 | 107.1°F (1984) | 42.1°F (1943) | 0.56 in (1989) |
| May 13 | 102.0°F (2009) | 41.0°F (1971) | 0.60 in (1958) |
| May 14 | 106.0°F (1996) | 41.0°F (1971) | 2.40 in (1928) |
| May 15 | 102.9°F (1990) | 37.9°F (2013) | 0.64 in (1959) |
| May 16 | 107.1°F (1978) | 35.1°F (2013) | 1.40 in (1947) |
| May 17 | 106.0°F (1996) | 39.9°F (1970) | 2.25 in (1984) |
| May 18 | 104.0°F (1996) | 39.9°F (1986) | 1.13 in (1954) |
| May 19 | 107.1°F (1996) | 37.9°F (2013) | 1.49 in (1975) |
| May 20 | 109.0°F (1996) | 39.0°F (2013) | 1.45 in (1958) |
| May 21 | 105.1°F (1996) | 34.0°F (2013) | 0.65 in (1943) |
| May 22 | 107.1°F (1989) | 46.0°F (1945) | 1.18 in (1991) |
| May 23 | 108.0°F (1996) | 43.0°F (1944) | 1.68 in (1992) |
| May 24 | 109.0°F (1989) | 46.0°F (1988) | 2.30 in (1992) |
| May 25 | 109.9°F (1989) | 48.0°F (1971) | 1.05 in (1924) |
| May 26 | 108.0°F (1989) | 48.0°F (1971) | 2.00 in (1936) |
| May 27 | 109.0°F (2011) | 48.0°F (2013) | 1.52 in (1957) |
| May 28 | 109.9°F (2011) | 50.0°F (1996) | 2.10 in (1932) |
| May 29 | 107.1°F (1985) | 46.9°F (2013) | 1.53 in (1967) |
| May 30 | 109.9°F (1985) | 46.9°F (2013) | 1.08 in (1972) |
| May 31 | 108.0°F (1998) | 45.0°F (1975) | 1.18 in (1987) |