May weather in Shoreline, WA
The average temperature in Shoreline in May is 56.8°F (48.3°F–65.3°F). Average precipitation: 2.16 inches.
May is a spring month in Shoreline, and is warmer than the annual average of 53.2°F. Daily temperatures swing about 17°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 56m. For travel, May is a comfortable month to visit.
Avg High
65.3°F
Avg Low
48.3°F
Precipitation
2.16 in
Daylight
14h 56m
May records in Shoreline
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 86.0°F (2014) | 37.0°F (2013) | 0.38 in (2012) |
| May 2 | 88.0°F (2016) | 39.9°F (1988) | 0.35 in (2022) |
| May 3 | 75.9°F (2018) | 39.0°F (2001) | 0.95 in (2014) |
| May 4 | 78.1°F (1992) | 39.9°F (1996) | 0.49 in (2014) |
| May 5 | 80.1°F (2013) | 39.0°F (2002) | 0.89 in (2009) |
| May 6 | 82.9°F (2013) | 35.1°F (2002) | 0.43 in (2009) |
| May 7 | 80.1°F (2016) | 35.1°F (2002) | 0.33 in (1991) |
| May 8 | 80.1°F (1987) | 37.9°F (1990) | 0.40 in (2014) |
| May 9 | 84.9°F (2020) | 37.9°F (1996) | 0.74 in (2000) |
| May 10 | 84.9°F (2020) | 37.0°F (2012) | 0.61 in (2000) |
| May 11 | 86.0°F (2024) | 41.0°F (2012) | 0.33 in (2017) |
| May 12 | 82.0°F (2002) | 41.0°F (1992) | 0.60 in (1996) |
| May 13 | 82.0°F (2018) | 42.1°F (2006) | 0.33 in (2009) |
| May 14 | 82.9°F (2018) | 42.1°F (2006) | 0.67 in (2011) |
| May 15 | 84.9°F (2023) | 39.0°F (2002) | 0.62 in (2001) |
| May 16 | 82.0°F (2006) | 39.9°F (1998) | 0.79 in (1988) |
| May 17 | 90.0°F (2008) | 41.0°F (2003) | 0.83 in (2025) |
| May 18 | 78.1°F (1993) | 39.0°F (2003) | 0.48 in (2005) |
| May 19 | 81.0°F (1993) | 42.1°F (2003) | 0.69 in (2009) |
| May 20 | 75.9°F (1995) | 39.9°F (2001) | 0.52 in (2007) |
| May 21 | 84.9°F (1988) | 42.1°F (1989) | 1.15 in (2020) |
| May 22 | 80.1°F (2017) | 44.1°F (1992) | 0.64 in (1996) |
| May 23 | 84.0°F (2001) | 44.1°F (1991) | 0.38 in (1997) |
| May 24 | 82.0°F (1992) | 42.1°F (2010) | 0.44 in (1991) |
| May 25 | 81.0°F (1995) | 43.0°F (2000) | 0.43 in (1998) |
| May 26 | 89.1°F (2005) | 45.0°F (2003) | 0.44 in (1989) |
| May 27 | 84.9°F (2005) | 45.0°F (2007) | 1.53 in (2006) |
| May 28 | 84.9°F (2025) | 45.0°F (2007) | 0.72 in (1989) |
| May 29 | 84.0°F (1995) | 45.0°F (1988) | 0.96 in (2022) |
| May 30 | 82.9°F (2007) | 42.1°F (2010) | 1.01 in (2020) |
| May 31 | 82.0°F (2001) | 44.1°F (1996) | 1.01 in (1997) |