May weather in Federal Way, WA
The average temperature in Federal Way in May is 57.8°F (49.1°F–66.5°F). Average precipitation: 2.00 inches.
May is a spring month in Federal Way, and is warmer than the annual average of 53.7°F. Daily temperatures swing about 17.4°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 14h 53m. For travel, May is a comfortable month to visit.
Avg High
66.5°F
Avg Low
49.1°F
Precipitation
2.00 in
Daylight
14h 53m
May records in Federal Way
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 80.1°F (1998) | 37.0°F (1988) | 0.37 in (1987) |
| May 2 | 89.1°F (2014) | 39.0°F (2011) | 0.61 in (1984) |
| May 3 | 73.9°F (1992) | 39.0°F (1982) | 0.53 in (2012) |
| May 4 | 82.0°F (1992) | 37.9°F (1984) | 0.96 in (2014) |
| May 5 | 78.1°F (2013) | 37.0°F (1982) | 0.61 in (2014) |
| May 6 | 82.0°F (2013) | 35.1°F (2006) | 0.49 in (2022) |
| May 7 | 82.9°F (2013) | 37.0°F (1984) | 0.66 in (2022) |
| May 8 | 82.0°F (1987) | 34.0°F (1982) | 0.65 in (2004) |
| May 9 | 84.0°F (1987) | 8.1°F (1999) | 0.52 in (2000) |
| May 10 | 84.0°F (1987) | 37.0°F (1999) | 0.57 in (2005) |
| May 11 | 82.9°F (2019) | 36.0°F (1985) | 0.43 in (1984) |
| May 12 | 82.0°F (2013) | 37.9°F (1985) | 0.49 in (1996) |
| May 13 | 81.0°F (2023) | 35.1°F (1985) | 0.74 in (1986) |
| May 14 | 86.0°F (2023) | 39.9°F (1986) | 0.59 in (2001) |
| May 15 | 84.9°F (2023) | 39.0°F (1985) | 1.92 in (2011) |
| May 16 | 79.0°F (1985) | 39.9°F (1986) | 0.91 in (1988) |
| May 17 | 89.1°F (2008) | 39.0°F (2011) | 0.59 in (1989) |
| May 18 | 88.0°F (2008) | 37.0°F (2003) | 0.61 in (1996) |
| May 19 | 79.0°F (1993) | 39.0°F (1987) | 0.50 in (1984) |
| May 20 | 77.0°F (2023) | 42.1°F (1987) | 0.73 in (1993) |
| May 21 | 80.1°F (1988) | 39.9°F (1992) | 0.68 in (2012) |
| May 22 | 82.9°F (2001) | 42.1°F (1984) | 0.72 in (1984) |
| May 23 | 87.1°F (2001) | 44.1°F (1986) | 0.35 in (1989) |
| May 24 | 84.9°F (2001) | 42.1°F (1984) | 0.50 in (1991) |
| May 25 | 84.0°F (1983) | 39.0°F (1984) | 0.72 in (1998) |
| May 26 | 84.0°F (2005) | 41.0°F (1998) | 0.57 in (2004) |
| May 27 | 87.1°F (2005) | 45.0°F (1984) | 0.80 in (2022) |
| May 28 | 91.9°F (1983) | 42.1°F (1998) | 0.71 in (1988) |
| May 29 | 87.1°F (2005) | 42.1°F (1998) | 0.36 in (2013) |
| May 30 | 82.0°F (1982) | 43.0°F (1982) | 1.25 in (1987) |
| May 31 | 84.9°F (1986) | 42.1°F (1984) | 1.17 in (1990) |