May weather in Medical Lake, WA
The average temperature in Medical Lake in May is 53.6°F (41.3°F–66.0°F). Average precipitation: 1.57 inches. Average snowfall is 0.3 inches.
May is a spring month in Medical Lake, and is warmer than the annual average of 46.4°F. Daily temperatures swing about 24.7°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 14h 55m. For travel, May is a comfortable month to visit.
Avg High
66.0°F
Avg Low
41.3°F
Precipitation
1.57 in
Snow
0.3 in
May records in Medical Lake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 80.1°F (1998) | 23.0°F (2013) | 0.22 in (2000) |
| May 2 | 82.0°F (2023) | 24.1°F (2024) | 0.42 in (2000) |
| May 3 | 81.0°F (2016) | 28.9°F (2020) | 0.43 in (2012) |
| May 4 | 81.0°F (2017) | 26.1°F (2020) | 0.36 in (2009) |
| May 5 | 79.0°F (1998) | 25.0°F (2010) | 0.44 in (2023) |
| May 6 | 81.0°F (2021) | 26.1°F (2001) | 0.45 in (2005) |
| May 7 | 82.0°F (2013) | 28.0°F (2003) | 0.35 in (2002) |
| May 8 | 82.0°F (2007) | 25.0°F (2002) | 0.05 in (2008) |
| May 9 | 82.0°F (2013) | 25.0°F (1999) | 0.80 in (2005) |
| May 10 | 84.0°F (2013) | 24.1°F (1999) | 0.21 in (2005) |
| May 11 | 82.9°F (2013) | 26.1°F (2012) | 0.25 in (2025) |
| May 12 | 84.0°F (2001) | 30.0°F (2012) | 0.21 in (2022) |
| May 13 | 80.1°F (1997) | 27.0°F (2006) | 0.27 in (2013) |
| May 14 | 82.0°F (1997) | 35.1°F (1999) | 0.50 in (2001) |
| May 15 | 87.1°F (2006) | 30.0°F (2017) | 0.33 in (2011) |
| May 16 | 89.1°F (2006) | 30.9°F (1999) | 0.60 in (2011) |
| May 17 | 91.0°F (2006) | 30.0°F (2003) | 0.88 in (1998) |
| May 18 | 89.1°F (2006) | 28.9°F (2024) | 0.33 in (2018) |
| May 19 | 84.0°F (2006) | 33.1°F (2022) | 0.27 in (2025) |
| May 20 | 86.0°F (2023) | 30.0°F (2022) | 1.32 in (2020) |
| May 21 | 80.1°F (2015) | 28.9°F (2010) | 1.47 in (2004) |
| May 22 | 86.0°F (2001) | 30.0°F (2010) | 0.39 in (2002) |
| May 23 | 91.9°F (2001) | 30.0°F (2013) | 0.22 in (2018) |
| May 24 | 91.0°F (2003) | 28.0°F (2010) | 0.14 in (1997) |
| May 25 | 84.9°F (2001) | 32.0°F (2010) | 0.57 in (1998) |
| May 26 | 86.0°F (2001) | 30.0°F (1999) | 0.87 in (1998) |
| May 27 | 82.9°F (2001) | 34.0°F (2006) | 0.95 in (2010) |
| May 28 | 86.0°F (2005) | 35.1°F (1998) | 0.18 in (2004) |
| May 29 | 84.9°F (2009) | 32.0°F (2001) | 0.28 in (1997) |
| May 30 | 87.1°F (2017) | 32.0°F (2024) | 1.32 in (2003) |
| May 31 | 84.0°F (2025) | 32.0°F (2024) | 0.76 in (1997) |