Prineville Weather in May
Average highs run from 65°F on May 1 to 72°F on May 31, and lows from 36°F to 43°F. Normal precipitation for the month is 1.38 in over about 7 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
- 69°F
- Average low
- 40°F
- Precipitation
- 1.38 in
- Record high
- 99°FMay 28, 1983
- Record low
- 13°FMay 1, 1954
- Chance of a freeze
- 93%
- Days of 90°F or more
- 0.5
- Daylight
- 14 h 14 min to 15 h 17 min
- Cloud cover
- 60%
- Humidity
- 66%
- Dew point
- 39°F
- Wind
- 6.9 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 | 36°F | 89°F 1947 | 13°F 1954 | 23% | |
| May 2 | 65°F | 37°F | 86°F 1918 | 16°F 1969 | 23% | |
| May 3 | 65°F | 37°F | 89°F 1966 | 18°F 1959 | 23% | |
| May 4 | 66°F | 37°F | 90°F 1966 | 19°F 1924 | 23% | |
| May 5 | 66°F | 38°F | 92°F 1992 | 20°F 1937 | 23% | |
| May 6 | 66°F | 38°F | 96°F 1992 | 18°F 1965 | 23% | |
| May 7 | 67°F | 38°F | 94°F 1987 | 19°F 1968 | 23% | |
| May 8 | 67°F | 38°F | 91°F 1987 | 21°F 1943 | 23% | |
| May 9 | 67°F | 39°F | 89°F 1940 | 19°F 1916 | 23% | |
| May 10 | 68°F | 39°F | 91°F 1924 | 19°F 1916 | 23% | |
| May 11 | 68°F | 39°F | 93°F 1898 | 14°F 1970 | 23% | 0% |
| May 12 | 68°F | 39°F | 92°F 1997 | 20°F 1916 | 23% | 0% |
| May 13 | 68°F | 40°F | 90°F 2012 | 20°F 1967 | 24% | 0% |
| May 14 | 69°F | 40°F | 92°F 1898 | 23°F 1916 | 24% | 0% |
| May 15 | 69°F | 40°F | 90°F 1927 | 21°F 1901 | 24% | 0% |
| May 16 | 69°F | 40°F | 89°F 1967 | 21°F 1965 | 24% | 0% |
| May 17 | 70°F | 41°F | 90°F 1973 | 18°F 1971 | 24% | 0% |
| May 18 | 70°F | 41°F | 93°F 2006 | 22°F 1911 | 24% | 0% |
| May 19 | 70°F | 41°F | 87°F 1902 | 22°F 1989 | 24% | 0% |
| May 20 | 70°F | 41°F | 96°F 1897 | 22°F 1974 | 24% | 0% |
| May 21 | 70°F | 41°F | 92°F 1988 | 23°F 1918 | 24% | 0% |
| May 22 | 71°F | 42°F | 91°F 1979 | 24°F 1960 | 24% | 0% |
| May 23 | 71°F | 42°F | 95°F 2001 | 21°F 1935 | 24% | 0% |
| May 24 | 71°F | 42°F | 95°F 2001 | 21°F 1950 | 24% | 0% |
| May 25 | 71°F | 42°F | 93°F 1986 | 20°F 1975 | 24% | 0% |
| May 26 | 71°F | 42°F | 91°F 1898 | 22°F 1911 | 24% | 0% |
| May 27 | 72°F | 42°F | 95°F 1983 | 24°F 1940 | 24% | 0% |
| May 28 | 72°F | 42°F | 99°F 1983 | 24°F 1899 | 24% | 0% |
| May 29 | 72°F | 43°F | 97°F 1983 | 27°F 1946 | 23% | 0% |
| May 30 | 72°F | 43°F | 99°F 1986 | 20°F 1920 | 23% | 0% |
| May 31 | 72°F | 43°F | 97°F 1986 | 21°F 1919 | 23% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 5:54 AM, sunset 8:08 PM
- May 31
- sunrise 5:23 AM, sunset 8:40 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00356883 (Prineville), public domain. Records: NOAA GHCN-Daily, station USC00356883, 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.