May weather in Siletz, OR
The average temperature in Siletz in May is 52.5°F (45.9°F–59.2°F). Average precipitation: inches.
May is a spring month in Siletz, and is warmer than the annual average of 52.2°F. Daily temperatures swing about 13.3°F between overnight low and afternoon high. Daylight averages about 14h 38m. For travel, May is a comfortable month to visit.
Avg High
59.2°F
Avg Low
45.9°F
Precipitation
in
Daylight
14h 38m
May records in Siletz
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 87.1°F (2014) | 34.0°F (2013) | 0.57 in (2024) |
| May 2 | 81.0°F (2016) | 34.0°F (2013) | 0.76 in (2020) |
| May 3 | 69.1°F (2016) | 39.0°F (2013) | 1.36 in (2012) |
| May 4 | 64.9°F (2017) | 39.0°F (2011) | 0.54 in (2014) |
| May 5 | 82.9°F (2013) | 35.1°F (2011) | 0.52 in (2024) |
| May 6 | 87.1°F (2013) | 36.0°F (2010) | 0.59 in (2024) |
| May 7 | 70.0°F (2025) | 37.9°F (2010) | 0.80 in (2022) |
| May 8 | 66.0°F (2020) | 39.0°F (2022) | 0.57 in (2022) |
| May 9 | 79.0°F (2020) | 39.0°F (2009) | 0.95 in (2014) |
| May 10 | 86.0°F (2019) | 37.9°F (2022) | 0.52 in (2014) |
| May 11 | 82.9°F (2024) | 37.0°F (2012) | 0.08 in (2025) |
| May 12 | 82.0°F (2024) | 35.1°F (2012) | 0.66 in (2011) |
| May 13 | 71.1°F (2014) | 39.0°F (2011) | 0.72 in (2022) |
| May 14 | 82.0°F (2023) | 39.0°F (2011) | 1.58 in (2022) |
| May 15 | 93.0°F (2023) | 39.9°F (2017) | 0.50 in (2020) |
| May 16 | 66.9°F (2016) | 37.9°F (2009) | 0.24 in (2019) |
| May 17 | 66.0°F (2009) | 39.0°F (2022) | 0.21 in (2020) |
| May 18 | 64.9°F (2020) | 41.0°F (2011) | 0.45 in (2020) |
| May 19 | 63.0°F (2019) | 39.0°F (2012) | 0.60 in (2014) |
| May 20 | 63.0°F (2017) | 37.0°F (2012) | 0.41 in (2010) |
| May 21 | 64.9°F (2014) | 39.0°F (2011) | 0.46 in (2010) |
| May 22 | 68.0°F (2017) | 41.0°F (2010) | 1.00 in (2013) |
| May 23 | 75.9°F (2017) | 39.0°F (2010) | 0.92 in (2013) |
| May 24 | 62.1°F (2016) | 42.1°F (2010) | 0.60 in (2013) |
| May 25 | 64.0°F (2016) | 43.0°F (2010) | 0.67 in (2010) |
| May 26 | 63.0°F (2020) | 41.0°F (2009) | 0.75 in (2010) |
| May 27 | 68.0°F (2022) | 43.0°F (2009) | 0.68 in (2013) |
| May 28 | 68.0°F (2020) | 41.0°F (2010) | 0.35 in (2014) |
| May 29 | 66.0°F (2020) | 41.0°F (2021) | 0.78 in (2022) |
| May 30 | 64.0°F (2016) | 41.0°F (2012) | 0.19 in (2022) |
| May 31 | 70.0°F (2025) | 42.1°F (2012) | 0.30 in (2020) |