May weather in Fountain Hills, AZ
The average temperature in Fountain Hills in May is 77.8°F (64.5°F–91.0°F). Average precipitation: 0.23 inches.
May is a spring month in Fountain Hills, and is warmer than the annual average of 72.1°F. Daily temperatures swing about 26.5°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 13h 45m. For travel, May is hot.
Avg High
91.0°F
Avg Low
64.5°F
Precipitation
0.23 in
Daylight
13h 45m
May records in Fountain Hills
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 102.0°F (1992) | 45.0°F (1983) | 0.36 in (1980) |
| May 2 | 100.9°F (1992) | 46.0°F (1988) | 0.56 in (1982) |
| May 3 | 105.1°F (1986) | 44.1°F (1991) | 0.03 in (1992) |
| May 4 | 102.0°F (1986) | 46.9°F (1998) | 0.12 in (1982) |
| May 5 | 102.0°F (1989) | 48.9°F (1991) | 0.19 in (1982) |
| May 6 | 105.1°F (1989) | 50.0°F (1988) | 0.11 in (1992) |
| May 7 | 107.1°F (1989) | 44.1°F (1988) | 0.07 in (1995) |
| May 8 | 107.1°F (1989) | 46.9°F (1986) | 0.16 in (2019) |
| May 9 | 108.0°F (1989) | 51.1°F (1986) | 0.24 in (2019) |
| May 10 | 105.1°F (1989) | 48.9°F (2003) | 0.34 in (1992) |
| May 11 | 102.9°F (1984) | 48.9°F (1991) | 0.28 in (1997) |
| May 12 | 111.9°F (1996) | 45.0°F (1980) | 0.27 in (1982) |
| May 13 | 111.9°F (1996) | 48.9°F (1982) | 0.01 in (2019) |
| May 14 | 109.0°F (1996) | 50.0°F (1998) | 0.50 in (1998) |
| May 15 | 107.1°F (1996) | 51.1°F (1998) | 0.06 in (1980) |
| May 16 | 104.0°F (1988) | 52.0°F (2015) | 0.04 in (1993) |
| May 17 | 102.9°F (1997) | 53.1°F (1989) | 0.08 in (2023) |
| May 18 | 104.0°F (2009) | 53.1°F (1998) | 0.60 in (2015) |
| May 19 | 107.1°F (1996) | 51.1°F (2011) | 0.08 in (2011) |
| May 20 | 107.1°F (1986) | 52.0°F (1994) | 0.03 in (2021) |
| May 21 | 107.1°F (1986) | 51.1°F (1981) | 0.29 in (1992) |
| May 22 | 106.0°F (2012) | 48.0°F (1998) | 0.34 in (2008) |
| May 23 | 108.0°F (2005) | 50.0°F (1998) | 0.45 in (2008) |
| May 24 | 109.9°F (1983) | 48.0°F (2010) | 0.11 in (1992) |
| May 25 | 111.0°F (1983) | 45.0°F (1980) | 0.08 in (1994) |
| May 26 | 108.0°F (1983) | 52.0°F (1987) | 0.17 in (1992) |
| May 27 | 109.0°F (1983) | 52.0°F (1987) | 0.16 in (1982) |
| May 28 | 109.9°F (1984) | 54.0°F (1987) | 0.35 in (1981) |
| May 29 | 114.1°F (1984) | 51.1°F (1980) | 0.22 in (1990) |
| May 30 | 109.0°F (1983) | 39.0°F (1990) | 0.15 in (1992) |
| May 31 | 114.1°F (1984) | 53.1°F (1988) | 0.02 in (1992) |