Grand Ronde Weather in May
Average highs run from 52°F on May 1 to 59°F on May 31, and lows from 35°F to 41°F. Normal precipitation for the month is 5.29 in over about 12 wet days.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 56°F
- Average low
- 39°F
- Precipitation
- 5.29 in
- Record high
- 97°FMay 16, 2008
- Record low
- 30°FMay 8, 2002
- Chance of a freeze
- 79%
- Daylight
- 14 h 17 min to 15 h 23 min
- Cloud cover
- 70%
- Humidity
- 85%
- Dew point
- 47°F
- Wind
- 5.1 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| May 1 | 52°F | 35°F | 88°F 2014 | 32°F 2013 | 49% | 0% |
| May 2 | 53°F | 35°F | 83°F 2016 | 32°F 2006 | 48% | 0% |
| May 3 | 53°F | 36°F | 88°F 2026 | 33°F 2001 | 47% | 0% |
| May 4 | 53°F | 36°F | 82°F 2013 | 31°F 2002 | 47% | 0% |
| May 5 | 54°F | 36°F | 86°F 2013 | 35°F 2007 | 46% | 0% |
| May 6 | 54°F | 36°F | 83°F 2016 | 31°F 2010 | 45% | 0% |
| May 7 | 54°F | 37°F | 85°F 2016 | 34°F 1999 | 45% | 0% |
| May 8 | 55°F | 37°F | 82°F 2020 | 30°F 2002 | 44% | 0% |
| May 9 | 55°F | 37°F | 85°F 2020 | 32°F 2006 | 43% | 0% |
| May 10 | 55°F | 37°F | 89°F 2024 | 33°F 2002 | 43% | 0% |
| May 11 | 55°F | 38°F | 85°F 2024 | 33°F 2002 | 42% | 0% |
| May 12 | 56°F | 38°F | 86°F 2023 | 31°F 2011 | 41% | 0% |
| May 13 | 56°F | 38°F | 91°F 2023 | 33°F 2022 | 41% | 0% |
| May 14 | 56°F | 38°F | 90°F 2023 | 37°F 2007 | 40% | 0% |
| May 15 | 57°F | 39°F | 94°F 2006 | 34°F 2002 | 40% | 0% |
| May 16 | 57°F | 39°F | 97°F 2008 | 34°F 2002 | 39% | 0% |
| May 17 | 57°F | 39°F | 91°F 2023 | 36°F 2003 | 39% | 0% |
| May 18 | 57°F | 39°F | 85°F 2008 | 32°F 2003 | 38% | 0% |
| May 19 | 57°F | 40°F | 83°F 2023 | 36°F 2021 | 38% | 0% |
| May 20 | 58°F | 40°F | 80°F 2023 | 34°F 2009 | 38% | 0% |
| May 21 | 58°F | 40°F | 87°F 2001 | 35°F 2021 | 37% | 0% |
| May 22 | 58°F | 40°F | 91°F 2001 | 36°F 1998 | 37% | 0% |
| May 23 | 58°F | 40°F | 89°F 1999 | 34°F 2005 | 36% | 0% |
| May 24 | 58°F | 40°F | 82°F 2001 | 34°F 2005 | 36% | 0% |
| May 25 | 58°F | 41°F | 84°F 2001 | 37°F 2009 | 35% | 0% |
| May 26 | 58°F | 41°F | 91°F 2005 | 36°F 1998 | 35% | 0% |
| May 27 | 59°F | 41°F | 91°F 2005 | 39°F 1998 | 35% | 0% |
| May 28 | 59°F | 41°F | 90°F 2020 | 39°F 2007 | 34% | 0% |
| May 29 | 59°F | 41°F | 88°F 2007 | 33°F 2001 | 34% | 0% |
| May 30 | 59°F | 41°F | 89°F 2007 | 35°F 2018 | 33% | 0% |
| May 31 | 59°F | 41°F | 92°F 2001 | 36°F 2026 | 33% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 6:03 AM, sunset 8:20 PM
- May 31
- sunrise 5:31 AM, sunset 8:54 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00354776 (Laurel Mtn), public domain. Records: NOAA GHCN-Daily, station USW00094273, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.