May weather in Delta, UT
The average temperature in Delta in May is 58.2°F (40.9°F–75.5°F). Average precipitation: 0.92 inches.
May is a spring month in Delta, and is warmer than the annual average of 50.6°F. Daily temperatures swing about 34.6°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 14h 10m. For travel, May is a comfortable month to visit.
Avg High
75.5°F
Avg Low
40.9°F
Precipitation
0.92 in
Daylight
14h 10m
May records in Delta
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 88.0°F (1943) | 17.1°F (2011) | 0.38 in (1964) |
| May 2 | 88.0°F (1947) | 15.1°F (2008) | 0.54 in (1964) |
| May 3 | 91.9°F (1947) | 21.0°F (2008) | 0.92 in (1999) |
| May 4 | 91.9°F (1947) | 21.9°F (2001) | 0.47 in (1993) |
| May 5 | 91.0°F (1947) | 23.0°F (1961) | 0.43 in (1964) |
| May 6 | 91.0°F (2021) | 24.1°F (2003) | 0.88 in (1980) |
| May 7 | 90.0°F (1989) | 23.0°F (1984) | 0.37 in (1979) |
| May 8 | 88.0°F (1974) | 21.9°F (2002) | 0.40 in (1950) |
| May 9 | 93.0°F (2001) | 19.0°F (2002) | 0.40 in (2015) |
| May 10 | 89.1°F (1941) | 27.0°F (1953) | 0.55 in (1980) |
| May 11 | 93.0°F (1941) | 23.0°F (1953) | 1.21 in (1947) |
| May 12 | 93.9°F (2001) | 25.0°F (2000) | 0.64 in (1995) |
| May 13 | 93.9°F (2013) | 28.0°F (1942) | 1.01 in (2018) |
| May 14 | 91.9°F (2013) | 27.0°F (1942) | 0.34 in (1980) |
| May 15 | 90.0°F (1996) | 30.9°F (1967) | 0.98 in (1981) |
| May 16 | 93.0°F (2006) | 28.9°F (1955) | 0.39 in (1995) |
| May 17 | 93.9°F (2006) | 27.0°F (1943) | 0.42 in (1955) |
| May 18 | 98.1°F (2009) | 28.0°F (1971) | 0.36 in (2025) |
| May 19 | 93.9°F (2008) | 28.0°F (1971) | 0.55 in (2011) |
| May 20 | 96.1°F (2008) | 27.0°F (2003) | 0.92 in (1975) |
| May 21 | 93.9°F (2012) | 27.0°F (2022) | 0.98 in (1962) |
| May 22 | 95.0°F (2012) | 26.1°F (2002) | 0.32 in (1957) |
| May 23 | 97.0°F (2003) | 30.9°F (2013) | 0.86 in (1957) |
| May 24 | 98.1°F (2001) | 25.0°F (2002) | 0.46 in (1997) |
| May 25 | 98.1°F (2001) | 30.9°F (1978) | 0.65 in (1941) |
| May 26 | 105.1°F (2008) | 30.0°F (2004) | 0.31 in (1981) |
| May 27 | 93.9°F (1951) | 33.1°F (1942) | 0.32 in (1996) |
| May 28 | 100.0°F (2003) | 30.9°F (2012) | 0.44 in (1946) |
| May 29 | 102.9°F (2003) | 27.0°F (2006) | 0.32 in (1992) |
| May 30 | 100.0°F (2002) | 27.0°F (2004) | 0.85 in (1991) |
| May 31 | 102.0°F (2002) | 30.9°F (1978) | 0.57 in (1991) |