May weather in Renton, WA
The average temperature in Renton in May is 57.6°F (48.9°F–66.3°F). Average precipitation: 1.86 inches.
May is a spring month in Renton, and is warmer than the annual average of 53.6°F. Daily temperatures swing about 17.4°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 14h 54m. For travel, May is a comfortable month to visit.
Avg High
66.3°F
Avg Low
48.9°F
Precipitation
1.86 in
Daylight
14h 54m
May records in Renton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 87.1°F (2014) | 37.0°F (2011) | 0.13 in (2000) |
| May 2 | 87.1°F (2016) | 37.9°F (2006) | 0.26 in (2009) |
| May 3 | 77.0°F (2018) | 39.9°F (2001) | 1.11 in (2014) |
| May 4 | 75.0°F (2013) | 37.9°F (2020) | 0.85 in (2017) |
| May 5 | 80.1°F (2013) | 41.0°F (1999) | 0.52 in (2009) |
| May 6 | 84.9°F (2013) | 37.9°F (2002) | 0.75 in (2009) |
| May 7 | 81.0°F (2016) | 37.0°F (2002) | 0.25 in (2022) |
| May 8 | 82.0°F (2020) | 37.9°F (1999) | 0.47 in (2014) |
| May 9 | 86.0°F (2020) | 39.0°F (2006) | 0.71 in (2005) |
| May 10 | 88.0°F (2020) | 37.0°F (1999) | 0.29 in (2000) |
| May 11 | 84.9°F (2019) | 39.0°F (2012) | 0.32 in (2011) |
| May 12 | 81.0°F (2023) | 37.9°F (2011) | 0.26 in (1999) |
| May 13 | 84.9°F (2023) | 39.9°F (2011) | 0.40 in (2009) |
| May 14 | 91.9°F (2023) | 41.0°F (1999) | 0.86 in (2011) |
| May 15 | 91.0°F (2023) | 42.1°F (2002) | 0.57 in (2011) |
| May 16 | 82.9°F (2006) | 39.0°F (2002) | 0.24 in (2020) |
| May 17 | 91.0°F (2008) | 37.0°F (2011) | 0.58 in (1999) |
| May 18 | 80.1°F (2023) | 39.0°F (2003) | 0.53 in (2005) |
| May 19 | 78.1°F (2023) | 39.0°F (2003) | 0.45 in (2005) |
| May 20 | 78.1°F (2023) | 42.1°F (2022) | 0.36 in (2007) |
| May 21 | 79.0°F (2015) | 43.0°F (2022) | 0.53 in (2008) |
| May 22 | 84.9°F (2001) | 43.0°F (2013) | 0.28 in (2013) |
| May 23 | 87.1°F (2001) | 44.1°F (2005) | 0.21 in (2006) |
| May 24 | 78.1°F (2025) | 42.1°F (2010) | 0.31 in (2006) |
| May 25 | 78.1°F (2001) | 46.0°F (2000) | 0.36 in (2011) |
| May 26 | 90.0°F (2005) | 46.9°F (1999) | 0.63 in (2004) |
| May 27 | 88.0°F (2005) | 45.0°F (2020) | 0.48 in (2004) |
| May 28 | 84.0°F (2017) | 46.9°F (2007) | 0.36 in (2010) |
| May 29 | 82.0°F (2009) | 44.1°F (1999) | 0.28 in (2000) |
| May 30 | 86.0°F (2007) | 42.1°F (2010) | 0.62 in (2020) |
| May 31 | 86.0°F (2001) | 43.0°F (2024) | 0.32 in (2010) |