May weather in Cosmopolis, WA
The average temperature in Cosmopolis in May is 54.0°F (46.6°F–61.4°F). Average precipitation: 3.46 inches.
May is a spring month in Cosmopolis, and is warmer than the annual average of 51.3°F. Daily temperatures swing about 14.8°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 14h 51m. For travel, May is a comfortable month to visit.
Avg High
61.4°F
Avg Low
46.6°F
Precipitation
3.46 in
Daylight
14h 51m
May records in Cosmopolis
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 84.9°F (2014) | 21.9°F (1900) | 1.02 in (1940) |
| May 2 | 86.0°F (1946) | 32.0°F (1948) | 1.60 in (1984) |
| May 3 | 82.9°F (1944) | 28.9°F (1901) | 2.13 in (1975) |
| May 4 | 86.0°F (1992) | 30.9°F (1919) | 1.87 in (2014) |
| May 5 | 84.9°F (1953) | 28.9°F (1893) | 1.87 in (1948) |
| May 6 | 87.1°F (2013) | 30.0°F (1901) | 1.20 in (1895) |
| May 7 | 82.9°F (1987) | 30.9°F (2002) | 1.25 in (1903) |
| May 8 | 91.0°F (1987) | 30.9°F (1921) | 1.50 in (1937) |
| May 9 | 82.9°F (1987) | 30.0°F (1922) | 1.40 in (2014) |
| May 10 | 87.1°F (2020) | 30.9°F (1922) | 1.26 in (2000) |
| May 11 | 91.0°F (1895) | 28.9°F (1916) | 2.10 in (1927) |
| May 12 | 90.0°F (1997) | 30.0°F (1916) | 0.99 in (1987) |
| May 13 | 91.9°F (1939) | 30.0°F (1920) | 1.70 in (1986) |
| May 14 | 90.0°F (1973) | 33.1°F (1964) | 1.06 in (1978) |
| May 15 | 90.0°F (1895) | 34.0°F (1932) | 1.68 in (1908) |
| May 16 | 87.1°F (2006) | 33.1°F (1894) | 2.36 in (1941) |
| May 17 | 91.9°F (2008) | 32.0°F (1905) | 1.48 in (1920) |
| May 18 | 90.0°F (1956) | 32.0°F (1905) | 1.55 in (1989) |
| May 19 | 86.0°F (1961) | 33.1°F (1922) | 0.94 in (1953) |
| May 20 | 89.1°F (1961) | 32.0°F (1909) | 1.70 in (1960) |
| May 21 | 96.1°F (1963) | 32.0°F (1909) | 1.20 in (1922) |
| May 22 | 88.0°F (1934) | 33.1°F (1918) | 1.07 in (1905) |
| May 23 | 91.9°F (1894) | 33.1°F (1935) | 0.74 in (1933) |
| May 24 | 89.1°F (1999) | 25.0°F (1900) | 1.81 in (1973) |
| May 25 | 89.1°F (1898) | 35.1°F (1920) | 1.55 in (1895) |
| May 26 | 84.0°F (1947) | 34.0°F (1984) | 0.98 in (1913) |
| May 27 | 91.0°F (2005) | 34.0°F (1899) | 1.98 in (1892) |
| May 28 | 88.0°F (1972) | 34.0°F (1921) | 1.50 in (1939) |
| May 29 | 89.1°F (1972) | 35.1°F (1921) | 1.05 in (1969) |
| May 30 | 91.9°F (1922) | 35.1°F (1933) | 1.30 in (1969) |
| May 31 | 91.0°F (1922) | 34.0°F (1933) | 1.36 in (1997) |