Bozeman Weather in May
Average highs run from 59°F on May 1 to 67°F on May 31, and lows from 34°F to 43°F. Normal precipitation for the month is 2.93 in over about 15 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
- 63°F
- Average low
- 39°F
- Precipitation
- 2.93 in
- Snowfall
- 3.6 in
- Record high
- 92°FMay 13, 2026
- Record low
- 14°FMay 9, 2002
- Chance of a freeze
- 97%
- Daylight
- 14 h 20 min to 15 h 27 min
- Cloud cover
- 71%
- Humidity
- 69%
- Dew point
- 33°F
- Wind
- 5.4 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 | 59°F | 34°F | 83°F 2007 | 15°F 1954 | 46% | 13% |
| May 2 | 59°F | 34°F | 84°F 1985 | 18°F 1954 | 46% | 12% |
| May 3 | 59°F | 35°F | 80°F 1947 | 19°F 2001 | 46% | 12% |
| May 4 | 60°F | 35°F | 84°F 1966 | 21°F 1967 | 47% | 11% |
| May 5 | 60°F | 35°F | 84°F 1966 | 19°F 2010 | 47% | 11% |
| May 6 | 60°F | 36°F | 86°F 1966 | 20°F 1999 | 47% | 10% |
| May 7 | 61°F | 36°F | 84°F 1985 | 20°F 2001 | 47% | 10% |
| May 8 | 61°F | 36°F | 86°F 1987 | 17°F 1965 | 48% | 9% |
| May 9 | 61°F | 37°F | 82°F 2012 | 14°F 2002 | 48% | 9% |
| May 10 | 62°F | 37°F | 85°F 2025 | 23°F 1946 | 48% | 8% |
| May 11 | 62°F | 37°F | 86°F 1960 | 22°F 1953 | 48% | 8% |
| May 12 | 62°F | 38°F | 90°F 2007 | 21°F 1943 | 49% | 7% |
| May 13 | 63°F | 38°F | 92°F 2026 | 20°F 1983 | 49% | 7% |
| May 14 | 63°F | 38°F | 83°F 1987 | 23°F 2004 | 49% | 7% |
| May 15 | 63°F | 39°F | 87°F 1987 | 24°F 1986 | 50% | 6% |
| May 16 | 63°F | 39°F | 88°F 1988 | 20°F 1974 | 50% | 6% |
| May 17 | 64°F | 39°F | 87°F 2007 | 25°F 1986 | 50% | 5% |
| May 18 | 64°F | 40°F | 91°F 2009 | 22°F 1965 | 51% | 5% |
| May 19 | 64°F | 40°F | 92°F 1954 | 24°F 2003 | 51% | 5% |
| May 20 | 65°F | 40°F | 87°F 1964 | 24°F 1989 | 51% | 5% |
| May 21 | 65°F | 41°F | 88°F 1980 | 22°F 2001 | 52% | 4% |
| May 22 | 65°F | 41°F | 87°F 1980 | 27°F 1984 | 52% | 4% |
| May 23 | 65°F | 41°F | 85°F 1985 | 26°F 1986 | 52% | 4% |
| May 24 | 66°F | 41°F | 87°F 1988 | 27°F 2024 | 52% | 3% |
| May 25 | 66°F | 42°F | 86°F 1988 | 25°F 1950 | 53% | 3% |
| May 26 | 66°F | 42°F | 90°F 1969 | 23°F 1975 | 53% | 3% |
| May 27 | 66°F | 42°F | 86°F 1966 | 29°F 1973 | 53% | 3% |
| May 28 | 67°F | 42°F | 87°F 1958 | 24°F 1947 | 53% | 3% |
| May 29 | 67°F | 43°F | 91°F 2003 | 26°F 1947 | 53% | 2% |
| May 30 | 67°F | 43°F | 87°F 1986 | 27°F 1979 | 53% | 2% |
| May 31 | 67°F | 43°F | 89°F 2025 | 26°F 1982 | 53% | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- May 1
- sunrise 6:12 AM, sunset 8:32 PM
- May 31
- sunrise 5:39 AM, sunset 9:06 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00241044 (Bozeman Montana State Univ), public domain. Records: NOAA GHCN-Daily, station USW00024132, 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.