May weather in Ephrata, WA
The average temperature in Ephrata in May is 60.4°F (47.6°F–73.3°F). Average precipitation: 0.75 inches.
May is a spring month in Ephrata, and is warmer than the annual average of 51.5°F. Daily temperatures swing about 25.7°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 14h 53m. For travel, May is a comfortable month to visit.
Avg High
73.3°F
Avg Low
47.6°F
Precipitation
0.75 in
Daylight
14h 53m
May records in Ephrata
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 90.0°F (1998) | 28.9°F (1954) | 0.31 in (1984) |
| May 2 | 84.9°F (2014) | 30.0°F (1997) | 0.24 in (2007) |
| May 3 | 88.0°F (1966) | 30.9°F (1949) | 0.24 in (1975) |
| May 4 | 90.0°F (1966) | 28.9°F (1959) | 0.21 in (1967) |
| May 5 | 96.1°F (1966) | 30.0°F (2010) | 0.25 in (1963) |
| May 6 | 91.9°F (1992) | 30.0°F (2002) | 0.26 in (1999) |
| May 7 | 96.1°F (1987) | 30.0°F (2003) | 0.43 in (1951) |
| May 8 | 96.1°F (1987) | 28.0°F (2002) | 0.25 in (1995) |
| May 9 | 93.9°F (1987) | 30.9°F (2010) | 0.80 in (2005) |
| May 10 | 96.1°F (1969) | 32.0°F (1970) | 0.51 in (1967) |
| May 11 | 93.9°F (1949) | 32.0°F (1985) | 0.47 in (1951) |
| May 12 | 96.1°F (1993) | 34.0°F (1992) | 0.26 in (1998) |
| May 13 | 91.9°F (1949) | 32.0°F (2022) | 0.36 in (2015) |
| May 14 | 96.1°F (1973) | 32.0°F (1992) | 0.53 in (2011) |
| May 15 | 93.9°F (1973) | 35.1°F (2003) | 0.28 in (1959) |
| May 16 | 96.1°F (2006) | 28.9°F (2003) | 0.50 in (2019) |
| May 17 | 96.1°F (2006) | 30.9°F (2011) | 0.72 in (1991) |
| May 18 | 96.1°F (2006) | 36.0°F (1989) | 1.11 in (2020) |
| May 19 | 93.0°F (2023) | 34.0°F (2003) | 0.33 in (2010) |
| May 20 | 93.0°F (2023) | 36.0°F (1960) | 0.48 in (1972) |
| May 21 | 93.0°F (1958) | 32.0°F (2010) | 0.79 in (1972) |
| May 22 | 96.1°F (1958) | 30.9°F (1960) | 0.18 in (1990) |
| May 23 | 98.1°F (2001) | 32.0°F (1964) | 0.37 in (1989) |
| May 24 | 93.0°F (1958) | 33.1°F (1989) | 0.39 in (1997) |
| May 25 | 96.1°F (1958) | 35.1°F (1984) | 0.44 in (1981) |
| May 26 | 98.1°F (1958) | 37.9°F (1978) | 0.53 in (1997) |
| May 27 | 95.0°F (1958) | 35.1°F (2011) | 0.47 in (1980) |
| May 28 | 95.0°F (2005) | 35.1°F (2011) | 0.27 in (1989) |
| May 29 | 97.0°F (1983) | 36.0°F (1976) | 0.27 in (2013) |
| May 30 | 100.0°F (1986) | 37.9°F (1967) | 0.22 in (1987) |
| May 31 | 100.9°F (1986) | 35.1°F (1984) | 0.74 in (1997) |