Deer Lodge Weather in May
Average highs run from 58°F on May 1 to 65°F on May 31, and lows from 29°F to 38°F. Normal precipitation for the month is 2.19 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
- 62°F
- Average low
- 34°F
- Precipitation
- 2.19 in
- Snowfall
- 2.0 in
- Record high
- 91°FMay 28, 1919
- Record low
- 14°FMay 5, 2010
- Chance of a freeze
- 100%
- Daylight
- 14 h 23 min to 15 h 32 min
- Cloud cover
- 69%
- Humidity
- 68%
- Dew point
- 34°F
- Wind
- 6.3 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 | 58°F | 29°F | 78°F 1985 | 19°F 1913 | 10% | |
| May 2 | 58°F | 30°F | 81°F 1985 | 20°F 1907 | 9% | |
| May 3 | 59°F | 30°F | 81°F 1924 | 21°F 2001 | 9% | |
| May 4 | 59°F | 30°F | 78°F 1918 | 21°F 2006 | 8% | |
| May 5 | 59°F | 30°F | 84°F 1992 | 14°F 2010 | 8% | |
| May 6 | 60°F | 31°F | 85°F 1992 | 22°F 1924 | 8% | |
| May 7 | 60°F | 31°F | 84°F 1987 | 16°F 2010 | 7% | |
| May 8 | 60°F | 31°F | 83°F 1987 | 20°F 1909 | 7% | |
| May 9 | 61°F | 32°F | 83°F 1994 | 17°F 2002 | 7% | |
| May 10 | 61°F | 32°F | 83°F 1906 | 23°F 2022 | 7% | |
| May 11 | 61°F | 32°F | 83°F 1924 | 21°F 1999 | 6% | |
| May 12 | 62°F | 33°F | 85°F 1993 | 21°F 1999 | 6% | |
| May 13 | 62°F | 33°F | 84°F 1993 | 21°F 1983 | 6% | |
| May 14 | 62°F | 33°F | 84°F 1924 | 23°F 1995 | 6% | |
| May 15 | 62°F | 34°F | 86°F 1924 | 24°F 1923 | 5% | |
| May 16 | 63°F | 34°F | 85°F 2006 | 25°F 1986 | 5% | |
| May 17 | 63°F | 34°F | 85°F 2006 | 25°F 2003 | 5% | |
| May 18 | 63°F | 35°F | 85°F 2009 | 24°F 2003 | 5% | |
| May 19 | 63°F | 35°F | 84°F 1919 | 22°F 2003 | 5% | |
| May 20 | 64°F | 35°F | 82°F 1925 | 20°F 1989 | 4% | |
| May 21 | 64°F | 35°F | 83°F 1919 | 25°F 2022 | 4% | |
| May 22 | 64°F | 36°F | 85°F 1919 | 26°F 1918 | 4% | |
| May 23 | 64°F | 36°F | 86°F 2001 | 21°F 1986 | 4% | |
| May 24 | 64°F | 36°F | 89°F 2003 | 27°F 1904 | 4% | |
| May 25 | 64°F | 36°F | 84°F 1919 | 27°F 1918 | 4% | |
| May 26 | 65°F | 37°F | 86°F 1986 | 25°F 1920 | 3% | |
| May 27 | 65°F | 37°F | 87°F 1986 | 25°F 1911 | 3% | |
| May 28 | 65°F | 37°F | 91°F 1919 | 28°F 1911 | 3% | |
| May 29 | 65°F | 37°F | 89°F 1986 | 30°F 1914 | 3% | |
| May 30 | 65°F | 37°F | 89°F 1986 | 27°F 1920 | 3% | |
| May 31 | 65°F | 38°F | 88°F 1986 | 27°F 1917 | 3% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- May 1
- sunrise 6:17 AM, sunset 8:40 PM
- May 31
- sunrise 5:43 AM, sunset 9:15 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00242275 (Deer Lodge 3 W), public domain. Records: NOAA GHCN-Daily, station USC00240199, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.