Wahkiakum County Weather in May
Average highs run from 65°F on May 1 to 68°F on May 31, and lows from 40°F to 45°F. Normal precipitation for the month is 4.36 in over about 13 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
- 67°F
- Average low
- 43°F
- Precipitation
- 4.36 in
- Record high
- 93°FMay 14, 2023
- Record low
- 30°FMay 1, 1954
- Chance of a freeze
- 37%
- Daylight
- 14 h 23 min to 15 h 32 min
- Cloud cover
- 71%
- Humidity
- 85%
- Dew point
- 47°F
- Wind
- 4.9 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 | 65°F | 40°F | 81°F 2014 | 30°F 1954 | 51% | 0% |
| May 2 | 65°F | 40°F | 72°F 2016 | 35°F 1964 | 50% | 0% |
| May 3 | 65°F | 40°F | 82°F 2026 | 35°F 1980 | 49% | 0% |
| May 4 | 65°F | 41°F | 86°F 1953 | 33°F 1969 | 49% | 0% |
| May 5 | 65°F | 41°F | 85°F 2013 | 35°F 1978 | 48% | 0% |
| May 6 | 66°F | 41°F | 80°F 1987 | 31°F 1965 | 48% | 0% |
| May 7 | 66°F | 41°F | 83°F 1969 | 33°F 1985 | 47% | 0% |
| May 8 | 66°F | 41°F | 82°F 2020 | 34°F 1990 | 47% | 0% |
| May 9 | 66°F | 42°F | 85°F 2019 | 34°F 2006 | 46% | 0% |
| May 10 | 66°F | 42°F | 84°F 2024 | 34°F 1967 | 46% | 0% |
| May 11 | 67°F | 42°F | 86°F 1997 | 34°F 2012 | 45% | 0% |
| May 12 | 67°F | 42°F | 86°F 1959 | 31°F 1985 | 45% | 0% |
| May 13 | 67°F | 42°F | 89°F 2023 | 33°F 1958 | 44% | 0% |
| May 14 | 67°F | 43°F | 93°F 2023 | 35°F 1964 | 44% | 0% |
| May 15 | 67°F | 43°F | 91°F 2006 | 35°F 1985 | 44% | 0% |
| May 16 | 67°F | 43°F | 93°F 2008 | 35°F 1986 | 44% | 0% |
| May 17 | 67°F | 43°F | 83°F 1958 | 33°F 1966 | 44% | 0% |
| May 18 | 67°F | 43°F | 79°F 1961 | 36°F 1966 | 43% | 0% |
| May 19 | 67°F | 44°F | 81°F 1961 | 37°F 1977 | 43% | 0% |
| May 20 | 67°F | 44°F | 83°F 1963 | 38°F 1975 | 43% | 0% |
| May 21 | 68°F | 44°F | 81°F 1969 | 36°F 1973 | 43% | 0% |
| May 22 | 68°F | 44°F | 84°F 2017 | 37°F 1955 | 43% | 0% |
| May 23 | 68°F | 44°F | 85°F 1999 | 34°F 1966 | 42% | 0% |
| May 24 | 68°F | 44°F | 84°F 1993 | 39°F 1955 | 42% | 0% |
| May 25 | 68°F | 44°F | 81°F 2005 | 34°F 1967 | 42% | 0% |
| May 26 | 68°F | 45°F | 91°F 2005 | 37°F 1973 | 41% | 0% |
| May 27 | 68°F | 45°F | 80°F 2003 | 39°F 1977 | 41% | 0% |
| May 28 | 68°F | 45°F | 76°F 1981 | 38°F 1966 | 41% | 0% |
| May 29 | 68°F | 45°F | 85°F 2007 | 37°F 1966 | 41% | 0% |
| May 30 | 68°F | 45°F | 78°F 1986 | 39°F 1978 | 40% | 0% |
| May 31 | 68°F | 45°F | 81°F 1970 | 35°F 1953 | 40% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 6:00 AM, sunset 8:23 PM
- May 31
- sunrise 5:26 AM, sunset 8:58 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00453333 (Grays Rvr Hatchery), public domain. Records: NOAA GHCN-Daily, station USW00094224, 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.