May weather in Monroe, WA
The average temperature in Monroe in May is 53.9°F (44.0°F–63.9°F). Average precipitation: 3.42 inches.
May is a spring month in Monroe, and is warmer than the annual average of 49.5°F. Daily temperatures swing about 19.9°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 14h 57m. For travel, May is a comfortable month to visit.
Avg High
63.9°F
Avg Low
44.0°F
Precipitation
3.42 in
Daylight
14h 57m
May records in Monroe
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 84.0°F (2014) | 28.9°F (1954) | 1.24 in (1942) |
| May 2 | 88.0°F (1937) | 32.0°F (1944) | 0.89 in (1976) |
| May 3 | 87.1°F (1945) | 30.9°F (2011) | 0.66 in (1962) |
| May 4 | 89.1°F (1953) | 30.9°F (1963) | 0.89 in (1934) |
| May 5 | 91.9°F (1953) | 28.9°F (1952) | 0.81 in (2017) |
| May 6 | 88.0°F (1953) | 32.0°F (1937) | 1.42 in (1931) |
| May 7 | 82.0°F (1957) | 32.0°F (2014) | 0.93 in (2022) |
| May 8 | 84.0°F (1957) | 30.9°F (1930) | 0.90 in (2023) |
| May 9 | 84.0°F (1976) | 33.1°F (1935) | 0.90 in (2000) |
| May 10 | 86.0°F (1993) | 30.9°F (1999) | 1.34 in (1942) |
| May 11 | 87.1°F (1971) | 32.0°F (1973) | 1.40 in (1951) |
| May 12 | 84.9°F (1971) | 34.0°F (1935) | 0.72 in (1996) |
| May 13 | 90.0°F (1959) | 35.1°F (1955) | 0.64 in (1952) |
| May 14 | 93.0°F (1973) | 30.0°F (1950) | 0.80 in (2017) |
| May 15 | 90.0°F (2023) | 33.1°F (1964) | 1.15 in (2011) |
| May 16 | 82.9°F (2006) | 34.0°F (1932) | 1.24 in (1945) |
| May 17 | 90.0°F (2008) | 30.9°F (1936) | 1.08 in (2019) |
| May 18 | 88.0°F (1958) | 35.1°F (1966) | 0.76 in (1945) |
| May 19 | 88.0°F (1958) | 33.1°F (2021) | 0.86 in (1936) |
| May 20 | 87.1°F (1963) | 34.0°F (1966) | 0.77 in (1960) |
| May 21 | 93.9°F (1963) | 35.1°F (1934) | 0.90 in (2025) |
| May 22 | 93.9°F (1963) | 37.0°F (2025) | 1.03 in (2024) |
| May 23 | 91.9°F (1969) | 34.0°F (1950) | 1.12 in (2012) |
| May 24 | 89.1°F (1947) | 36.0°F (1935) | 0.57 in (1973) |
| May 25 | 88.0°F (1947) | 34.0°F (1935) | 1.18 in (1929) |
| May 26 | 88.0°F (1958) | 27.0°F (2010) | 1.25 in (1959) |
| May 27 | 88.0°F (1958) | 35.1°F (1940) | 0.98 in (2004) |
| May 28 | 90.0°F (1983) | 35.1°F (1966) | 1.58 in (2006) |
| May 29 | 91.0°F (1983) | 33.1°F (2010) | 1.07 in (1969) |
| May 30 | 84.9°F (1956) | 34.0°F (1951) | 1.20 in (2020) |
| May 31 | 88.0°F (1964) | 35.1°F (1952) | 1.15 in (1997) |