Manson Weather in May
Average highs run from 68°F on May 1 to 75°F on May 31, and lows from 42°F to 50°F. Normal precipitation for the month is 1.05 in over about 6 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
- 72°F
- Average low
- 46°F
- Precipitation
- 1.05 in
- Record high
- 103°FMay 30, 1986
- Record low
- 32°FMay 4, 1962
- Chance of a freeze
- 10%
- Daylight
- 14 h 32 min to 15 h 45 min
- Cloud cover
- 64%
- Humidity
- 64%
- Dew point
- 38°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 | 68°F | 42°F | 87°F 1998 | 34°F 1963 | 17% | 0% |
| May 2 | 68°F | 42°F | 85°F 2014 | 35°F 1997 | 17% | 0% |
| May 3 | 68°F | 42°F | 87°F 1966 | 34°F 1996 | 17% | 0% |
| May 4 | 69°F | 43°F | 89°F 1966 | 32°F 1962 | 17% | 0% |
| May 5 | 69°F | 43°F | 91°F 1966 | 32°F 1968 | 17% | 0% |
| May 6 | 69°F | 43°F | 93°F 1992 | 33°F 2002 | 17% | 0% |
| May 7 | 70°F | 44°F | 92°F 1987 | 34°F 1996 | 17% | 0% |
| May 8 | 70°F | 44°F | 93°F 1987 | 35°F 1996 | 18% | 0% |
| May 9 | 70°F | 44°F | 92°F 1987 | 34°F 1985 | 18% | 0% |
| May 10 | 71°F | 45°F | 92°F 2013 | 36°F 1970 | 18% | 0% |
| May 11 | 71°F | 45°F | 92°F 1993 | 32°F 1985 | 18% | 0% |
| May 12 | 71°F | 45°F | 98°F 1993 | 32°F 1985 | 18% | 0% |
| May 13 | 72°F | 45°F | 91°F 1993 | 35°F 1970 | 19% | 0% |
| May 14 | 72°F | 46°F | 93°F 1997 | 36°F 1971 | 19% | 0% |
| May 15 | 72°F | 46°F | 91°F 1973 | 38°F 1974 | 19% | 0% |
| May 16 | 72°F | 46°F | 95°F 2006 | 35°F 1969 | 19% | 0% |
| May 17 | 73°F | 47°F | 96°F 2006 | 37°F 1988 | 20% | 0% |
| May 18 | 73°F | 47°F | 97°F 2006 | 39°F 1965 | 20% | 0% |
| May 19 | 73°F | 47°F | 91°F 2023 | 34°F 1975 | 20% | 0% |
| May 20 | 73°F | 48°F | 92°F 2023 | 35°F 1971 | 20% | 0% |
| May 21 | 73°F | 48°F | 89°F 1963 | 36°F 2010 | 20% | 0% |
| May 22 | 74°F | 48°F | 90°F 1979 | 37°F 1960 | 20% | 0% |
| May 23 | 74°F | 48°F | 93°F 2001 | 38°F 1964 | 20% | 0% |
| May 24 | 74°F | 49°F | 94°F 1999 | 35°F 1975 | 20% | 0% |
| May 25 | 74°F | 49°F | 93°F 1983 | 39°F 1984 | 20% | 0% |
| May 26 | 74°F | 49°F | 89°F 2001 | 40°F 1973 | 20% | 0% |
| May 27 | 75°F | 49°F | 89°F 2005 | 39°F 1977 | 20% | 0% |
| May 28 | 75°F | 50°F | 94°F 1983 | 41°F 1976 | 20% | 0% |
| May 29 | 75°F | 50°F | 98°F 1983 | 40°F 1976 | 20% | 0% |
| May 30 | 75°F | 50°F | 103°F 1986 | 42°F 1984 | 20% | 0% |
| May 31 | 75°F | 50°F | 103°F 1986 | 41°F 1984 | 20% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 5:42 AM, sunset 8:14 PM
- May 31
- sunrise 5:06 AM, sunset 8:51 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00451350 (Chelan), public domain. Records: NOAA GHCN-Daily, station USW00094239, 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.