Mahnomen Weather in May
Average highs run from 60°F on May 1 to 72°F on May 31, and lows from 37°F to 50°F. Normal precipitation for the month is 3.15 in.
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
- 66°F
- Average low
- 43°F
- Precipitation
- 3.15 in
- Record high
- 96°FMay 26, 2026
- Record low
- 10°FMay 3, 1967
- Chance of a freeze
- 77%
- Daylight
- 14 h 28 min to 15 h 40 min
- Cloud cover
- 66%
- Humidity
- 65%
- Dew point
- 42°F
- Wind
- 11.9 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 | 60°F | 37°F | 84°F 1992 | 20°F 1961 | |
| May 2 | 60°F | 37°F | 85°F 1980 | 18°F 1967 | |
| May 3 | 60°F | 37°F | 87°F 1980 | 10°F 1967 | |
| May 4 | 61°F | 38°F | 90°F 1980 | 24°F 1931 | |
| May 5 | 61°F | 38°F | 85°F 1980 | 16°F 1929 | |
| May 6 | 62°F | 39°F | 82°F 1988 | 19°F 1929 | |
| May 7 | 62°F | 39°F | 90°F 1992 | 19°F 1976 | |
| May 8 | 63°F | 40°F | 90°F 1987 | 22°F 1929 | |
| May 9 | 63°F | 40°F | 89°F 1928 | 22°F 1966 | |
| May 10 | 64°F | 41°F | 88°F 1987 | 21°F 1990 | |
| May 11 | 64°F | 41°F | 93°F 2025 | 22°F 1928 | |
| May 12 | 65°F | 42°F | 93°F 2025 | 25°F 1969 | |
| May 13 | 65°F | 42°F | 92°F 2025 | 24°F 2020 | |
| May 14 | 65°F | 43°F | 92°F 2025 | 26°F 1983 | |
| May 15 | 66°F | 43°F | 90°F 1931 | 19°F 1929 | |
| May 16 | 66°F | 43°F | 86°F 1933 | 22°F 1930 | |
| May 17 | 67°F | 44°F | 90°F 1972 | 28°F 1968 | |
| May 18 | 67°F | 44°F | 89°F 1977 | 32°F 1968 | |
| May 19 | 68°F | 45°F | 88°F 1994 | 25°F 1929 | |
| May 20 | 68°F | 45°F | 87°F 1972 | 23°F 1967 | |
| May 21 | 68°F | 46°F | 93°F 1964 | 28°F 1993 | |
| May 22 | 69°F | 46°F | 91°F 1980 | 25°F 1963 | |
| May 23 | 69°F | 47°F | 92°F 1980 | 25°F 1930 | |
| May 24 | 69°F | 47°F | 89°F 1980 | 30°F 1992 | |
| May 25 | 70°F | 47°F | 90°F 1980 | 28°F 1983 | |
| May 26 | 70°F | 48°F | 96°F 2026 | 26°F 1928 | |
| May 27 | 70°F | 48°F | 92°F 1969 | 30°F 1928 | |
| May 28 | 71°F | 49°F | 93°F 2026 | 30°F 1930 | |
| May 29 | 71°F | 49°F | 94°F 2026 | 28°F 1931 | |
| May 30 | 71°F | 49°F | 88°F 2018 | 30°F 1930 | |
| May 31 | 72°F | 50°F | 93°F 1986 | 30°F 1964 |
Chance of rain
Sunrise and sunset
Times for 2026, local time (CDT).
- May 1
- sunrise 6:07 AM, sunset 8:35 PM
- May 31
- sunrise 5:32 AM, sunset 9:12 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00215012 (Mahnomen), public domain. Records: NOAA GHCN-Daily, station USC00215012, 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.