May weather in Irrigon, OR
The average temperature in Irrigon in May is 59.5°F (44.9°F–74.2°F). Average precipitation: 0.87 inches.
May is a spring month in Irrigon, and is warmer than the annual average of 51.9°F. Daily temperatures swing about 29.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 14h 44m. For travel, May is a comfortable month to visit.
Avg High
74.2°F
Avg Low
44.9°F
Precipitation
0.87 in
Daylight
14h 44m
May records in Irrigon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 84.0°F (2023) | 28.0°F (2013) | 0.55 in (2022) |
| May 2 | 87.1°F (2015) | 28.9°F (2006) | 0.32 in (2007) |
| May 3 | 90.0°F (2025) | 28.9°F (2006) | 0.52 in (2009) |
| May 4 | 91.0°F (2023) | 33.1°F (2006) | 0.06 in (2012) |
| May 5 | 89.1°F (2017) | 32.0°F (2025) | 0.68 in (2016) |
| May 6 | 82.9°F (2013) | 30.9°F (2001) | 0.25 in (2020) |
| May 7 | 89.1°F (2013) | 32.0°F (2000) | 0.61 in (2022) |
| May 8 | 90.0°F (2013) | 32.0°F (2000) | 0.08 in (2004) |
| May 9 | 90.0°F (2013) | 32.0°F (2006) | 0.31 in (2018) |
| May 10 | 91.9°F (2013) | 32.0°F (2006) | 0.19 in (2000) |
| May 11 | 95.0°F (2013) | 26.1°F (2022) | 0.30 in (2018) |
| May 12 | 93.9°F (2013) | 33.1°F (2012) | 0.22 in (2004) |
| May 13 | 91.9°F (2024) | 35.1°F (2006) | 1.30 in (2015) |
| May 14 | 96.1°F (2023) | 36.0°F (2017) | 0.26 in (2022) |
| May 15 | 97.0°F (2023) | 35.1°F (2017) | 0.61 in (2011) |
| May 16 | 93.0°F (2018) | 37.0°F (2002) | 0.22 in (2016) |
| May 17 | 96.1°F (2006) | 36.0°F (2001) | 0.31 in (2025) |
| May 18 | 97.0°F (2006) | 37.9°F (2003) | 0.36 in (2010) |
| May 19 | 97.0°F (2006) | 33.1°F (2003) | 0.40 in (2020) |
| May 20 | 100.0°F (2023) | 37.9°F (2016) | 0.50 in (2006) |
| May 21 | 100.9°F (2023) | 37.0°F (2009) | 0.34 in (2019) |
| May 22 | 89.1°F (2015) | 37.9°F (2009) | 0.21 in (2024) |
| May 23 | 93.9°F (2001) | 37.0°F (2013) | 0.37 in (2015) |
| May 24 | 98.1°F (2001) | 37.0°F (2010) | 0.47 in (2006) |
| May 25 | 93.0°F (2001) | 39.9°F (2005) | 0.25 in (2003) |
| May 26 | 93.0°F (2025) | 41.0°F (2017) | 0.32 in (2010) |
| May 27 | 91.9°F (2001) | 42.1°F (2011) | 0.12 in (2013) |
| May 28 | 91.9°F (2005) | 39.0°F (2011) | 0.19 in (2013) |
| May 29 | 97.0°F (2025) | 37.9°F (2001) | 0.70 in (2022) |
| May 30 | 95.0°F (2017) | 39.9°F (2010) | 0.48 in (2013) |
| May 31 | 100.9°F (2015) | 39.9°F (2024) | 0.60 in (2000) |