Green Weather in May
Average highs run from 69°F on May 1 to 76°F on May 31, and lows from 44°F to 50°F. Normal precipitation for the month is 2.05 in over about 10 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
- 73°F
- Average low
- 47°F
- Precipitation
- 2.05 in
- Record high
- 105°FMay 16, 2008
- Record low
- 26°FMay 1, 1954
- Chance of a freeze
- 2%
- Days of 90°F or more
- 2.0
- Daylight
- 14 h 08 min to 15 h 09 min
- Cloud cover
- 65%
- Humidity
- 84%
- Dew point
- 47°F
- Wind
- 3.8 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| May 1 | 69°F | 44°F | 93°F 1947 | 26°F 1954 | 42% |
| May 2 | 70°F | 44°F | 86°F 1937 | 31°F 1964 | 41% |
| May 3 | 70°F | 45°F | 90°F 1944 | 36°F 1958 | 41% |
| May 4 | 70°F | 45°F | 87°F 1953 | 33°F 1952 | 40% |
| May 5 | 71°F | 45°F | 90°F 1953 | 35°F 1939 | 40% |
| May 6 | 71°F | 45°F | 88°F 1949 | 31°F 1965 | 39% |
| May 7 | 71°F | 46°F | 86°F 2001 | 32°F 1965 | 38% |
| May 8 | 71°F | 46°F | 90°F 2020 | 32°F 1965 | 38% |
| May 9 | 72°F | 46°F | 91°F 2019 | 34°F 1955 | 37% |
| May 10 | 72°F | 46°F | 94°F 1931 | 34°F 1953 | 37% |
| May 11 | 72°F | 46°F | 91°F 1931 | 33°F 1953 | 37% |
| May 12 | 73°F | 47°F | 89°F 1949 | 36°F 1935 | 36% |
| May 13 | 73°F | 47°F | 96°F 1939 | 31°F 1958 | 36% |
| May 14 | 73°F | 47°F | 97°F 2014 | 35°F 1943 | 35% |
| May 15 | 73°F | 47°F | 97°F 2006 | 38°F 1952 | 35% |
| May 16 | 73°F | 47°F | 105°F 2008 | 36°F 1962 | 34% |
| May 17 | 74°F | 47°F | 99°F 2008 | 33°F 1965 | 34% |
| May 18 | 74°F | 48°F | 91°F 2008 | 36°F 1933 | 34% |
| May 19 | 74°F | 48°F | 94°F 2008 | 36°F 1941 | 33% |
| May 20 | 74°F | 48°F | 94°F 1963 | 36°F 1959 | 33% |
| May 21 | 74°F | 48°F | 88°F 1951 | 36°F 1960 | 32% |
| May 22 | 75°F | 48°F | 99°F 2001 | 34°F 1960 | 32% |
| May 23 | 75°F | 48°F | 94°F 1947 | 36°F 1955 | 31% |
| May 24 | 75°F | 49°F | 93°F 1938 | 35°F 1953 | 31% |
| May 25 | 75°F | 49°F | 95°F 1938 | 37°F 1964 | 30% |
| May 26 | 75°F | 49°F | 95°F 2005 | 37°F 1954 | 30% |
| May 27 | 75°F | 49°F | 90°F 2005 | 32°F 1954 | 29% |
| May 28 | 75°F | 49°F | 93°F 2020 | 37°F 1951 | 29% |
| May 29 | 76°F | 49°F | 93°F 1931 | 37°F 1959 | 28% |
| May 30 | 76°F | 49°F | 94°F 1931 | 38°F 1959 | 28% |
| May 31 | 76°F | 50°F | 96°F 2001 | 36°F 1953 | 27% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 6:07 AM, sunset 8:15 PM
- May 31
- sunrise 5:37 AM, sunset 8:46 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00357331 (Roseburg Kqen), public domain. Records: NOAA GHCN-Daily, station USW00024231, 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.