May weather in Sunnyside, WA
The average temperature in Sunnyside in May is 58.2°F (43.7°F–72.8°F). Average precipitation: 0.75 inches.
May is a spring month in Sunnyside, and is warmer than the annual average of 49.9°F. Daily temperatures swing about 29.1°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 14h 47m. For travel, May is a comfortable month to visit.
Avg High
72.8°F
Avg Low
43.7°F
Precipitation
0.75 in
Daylight
14h 47m
May records in Sunnyside
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 89.1°F (1957) | 27.0°F (1913) | 0.40 in (1933) |
| May 2 | 91.0°F (1937) | 24.1°F (1899) | 0.26 in (2007) |
| May 3 | 90.0°F (1937) | 28.9°F (1928) | 0.28 in (1977) |
| May 4 | 90.0°F (1966) | 28.9°F (1917) | 0.34 in (1910) |
| May 5 | 95.0°F (1966) | 28.0°F (1924) | 0.21 in (2005) |
| May 6 | 98.1°F (1966) | 28.0°F (2010) | 0.72 in (1986) |
| May 7 | 96.1°F (1992) | 28.0°F (1930) | 0.35 in (1983) |
| May 8 | 96.1°F (1987) | 28.9°F (1922) | 0.59 in (1972) |
| May 9 | 97.0°F (1987) | 25.0°F (1922) | 0.41 in (1957) |
| May 10 | 96.1°F (1924) | 30.0°F (1909) | 0.52 in (1961) |
| May 11 | 97.0°F (1924) | 26.1°F (1916) | 0.75 in (1951) |
| May 12 | 98.1°F (1931) | 30.9°F (1899) | 0.18 in (1911) |
| May 13 | 97.0°F (1931) | 30.9°F (1916) | 0.34 in (1945) |
| May 14 | 96.1°F (1939) | 32.0°F (1943) | 0.35 in (1926) |
| May 15 | 97.0°F (1924) | 32.0°F (1915) | 1.40 in (2011) |
| May 16 | 95.0°F (1924) | 30.0°F (1917) | 0.73 in (1921) |
| May 17 | 99.0°F (2006) | 30.9°F (1896) | 0.20 in (1996) |
| May 18 | 99.0°F (2006) | 30.9°F (1941) | 0.41 in (2010) |
| May 19 | 97.0°F (1956) | 32.0°F (1898) | 0.30 in (1912) |
| May 20 | 93.0°F (1928) | 30.0°F (1927) | 0.43 in (2002) |
| May 21 | 97.0°F (1928) | 32.0°F (1918) | 1.60 in (1972) |
| May 22 | 93.9°F (1910) | 30.9°F (1920) | 1.05 in (2013) |
| May 23 | 96.1°F (1910) | 30.9°F (1911) | 0.32 in (1989) |
| May 24 | 100.9°F (2001) | 30.9°F (1926) | 0.24 in (2013) |
| May 25 | 97.0°F (2001) | 32.0°F (1918) | 0.55 in (1998) |
| May 26 | 99.0°F (1936) | 33.1°F (1922) | 0.64 in (1980) |
| May 27 | 99.0°F (1958) | 33.1°F (1922) | 0.58 in (1945) |
| May 28 | 100.9°F (1934) | 33.1°F (1895) | 0.62 in (1948) |
| May 29 | 99.0°F (1897) | 32.0°F (1920) | 0.17 in (1906) |
| May 30 | 100.9°F (1986) | 30.9°F (1923) | 0.29 in (1906) |
| May 31 | 104.0°F (1986) | 34.0°F (1919) | 0.42 in (2000) |