May weather in Roslyn, WA
The average temperature in Roslyn in May is 50.0°F (39.0°F–61.0°F). Average precipitation: 2.21 inches.
May is a spring month in Roslyn, and is warmer than the annual average of 45.2°F. Daily temperatures swing about 22°F between overnight low and afternoon high. Daylight averages about 14h 53m. For travel, May is a comfortable month to visit.
Avg High
61.0°F
Avg Low
39.0°F
Precipitation
2.21 in
Daylight
14h 53m
May records in Roslyn
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 80.1°F (2023) | 23.0°F (2013) | 0.53 in (2012) |
| May 2 | 78.1°F (2004) | 28.0°F (2003) | 0.28 in (1933) |
| May 3 | 80.1°F (2023) | 28.0°F (2006) | 0.84 in (2010) |
| May 4 | 79.0°F (2023) | 28.0°F (2006) | 0.51 in (1951) |
| May 5 | 77.0°F (2017) | 28.9°F (2025) | 0.46 in (2017) |
| May 6 | 75.0°F (2013) | 28.0°F (2012) | 0.49 in (2002) |
| May 7 | 75.9°F (2016) | 19.9°F (2003) | 0.68 in (2020) |
| May 8 | 73.9°F (2016) | 28.0°F (1933) | 0.62 in (2022) |
| May 9 | 75.9°F (2019) | 28.0°F (2002) | 0.43 in (2018) |
| May 10 | 77.0°F (2015) | 28.0°F (2002) | 1.10 in (1951) |
| May 11 | 80.1°F (2024) | 27.0°F (2012) | 0.50 in (1906) |
| May 12 | 80.1°F (2019) | 32.0°F (2003) | 0.18 in (2009) |
| May 13 | 81.0°F (2023) | 28.9°F (2006) | 0.58 in (2015) |
| May 14 | 81.0°F (2018) | 30.9°F (2007) | 1.00 in (1906) |
| May 15 | 82.9°F (2012) | 30.9°F (2009) | 2.22 in (2011) |
| May 16 | 84.0°F (2006) | 30.9°F (2002) | 0.64 in (2011) |
| May 17 | 86.0°F (2006) | 30.0°F (2011) | 0.53 in (2019) |
| May 18 | 91.9°F (2006) | 33.1°F (2003) | 0.43 in (2010) |
| May 19 | 82.9°F (2006) | 19.9°F (2003) | 0.72 in (2022) |
| May 20 | 82.9°F (2023) | 33.1°F (2003) | 0.47 in (2018) |
| May 21 | 78.1°F (2023) | 30.0°F (2003) | 0.82 in (2016) |
| May 22 | 78.1°F (2017) | 35.1°F (2005) | 0.49 in (2024) |
| May 23 | 82.0°F (2017) | 35.1°F (2006) | 0.64 in (2013) |
| May 24 | 78.1°F (2017) | 30.9°F (2002) | 0.96 in (2018) |
| May 25 | 79.0°F (2003) | 34.0°F (2005) | 0.40 in (1906) |
| May 26 | 75.0°F (2015) | 35.1°F (2006) | 0.40 in (1906) |
| May 27 | 79.0°F (2005) | 35.1°F (2011) | 0.58 in (2010) |
| May 28 | 82.9°F (2005) | 37.0°F (2011) | 2.00 in (1906) |
| May 29 | 88.0°F (2005) | 34.0°F (2003) | 0.69 in (2004) |
| May 30 | 87.1°F (2017) | 35.1°F (2006) | 0.43 in (2024) |
| May 31 | 84.9°F (2009) | 35.1°F (2024) | 0.56 in (2020) |