May weather in Duncan, AZ
The average temperature in Duncan in May is 68.0°F (47.1°F–88.9°F). Average precipitation: 0.29 inches.
May is a spring month in Duncan, and is warmer than the annual average of 61.4°F. Daily temperatures swing about 41.8°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 13h 41m. For travel, May is hot.
Avg High
88.9°F
Avg Low
47.1°F
Precipitation
0.29 in
Daylight
13h 41m
May records in Duncan
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 98.1°F (2020) | 27.0°F (1967) | 0.74 in (1981) |
| May 2 | 96.1°F (1977) | 27.0°F (1988) | 0.40 in (1985) |
| May 3 | 96.1°F (2000) | 27.0°F (1991) | 0.04 in (1968) |
| May 4 | 97.0°F (2000) | 28.9°F (1904) | 0.40 in (2015) |
| May 5 | 97.0°F (1989) | 21.9°F (1950) | 1.30 in (1992) |
| May 6 | 100.0°F (2020) | 26.1°F (1975) | 0.18 in (1978) |
| May 7 | 100.9°F (1989) | 24.1°F (1975) | 1.23 in (1957) |
| May 8 | 100.9°F (1989) | 26.1°F (1975) | 0.20 in (1903) |
| May 9 | 99.0°F (2001) | 26.1°F (1974) | 0.04 in (1947) |
| May 10 | 100.0°F (2018) | 25.0°F (1979) | 0.59 in (1992) |
| May 11 | 99.0°F (2001) | 21.9°F (1979) | 0.55 in (1904) |
| May 12 | 102.9°F (1996) | 26.1°F (1979) | 0.10 in (2019) |
| May 13 | 98.1°F (1984) | 30.0°F (1979) | 0.01 in (1969) |
| May 14 | 99.0°F (2000) | 32.0°F (1985) | 0.00 in (1902) |
| May 15 | 102.9°F (2000) | 32.0°F (1998) | 0.15 in (1903) |
| May 16 | 100.0°F (2022) | 32.0°F (1983) | 0.22 in (1989) |
| May 17 | 100.9°F (2003) | 33.1°F (1953) | 0.62 in (2023) |
| May 18 | 99.0°F (1970) | 33.1°F (1962) | 0.21 in (1992) |
| May 19 | 100.0°F (2008) | 28.9°F (1903) | 0.35 in (1902) |
| May 20 | 105.1°F (2005) | 32.0°F (1960) | 0.37 in (1997) |
| May 21 | 106.0°F (2005) | 28.9°F (2019) | 0.37 in (1987) |
| May 22 | 107.1°F (2005) | 30.9°F (1902) | 0.12 in (1941) |
| May 23 | 105.1°F (2000) | 33.1°F (1903) | 0.38 in (2008) |
| May 24 | 102.0°F (2005) | 34.0°F (2019) | 0.38 in (1992) |
| May 25 | 100.9°F (2001) | 27.0°F (1980) | 0.34 in (1967) |
| May 26 | 100.9°F (2022) | 30.9°F (1980) | 0.19 in (1994) |
| May 27 | 102.9°F (1974) | 34.0°F (1978) | 0.41 in (2005) |
| May 28 | 106.0°F (2020) | 35.1°F (1978) | 0.16 in (2005) |
| May 29 | 108.0°F (2000) | 35.1°F (1978) | 0.25 in (1992) |
| May 30 | 107.1°F (2002) | 34.0°F (1980) | 0.25 in (1972) |
| May 31 | 108.0°F (2002) | 36.0°F (1976) | 0.30 in (1973) |