Montana in may: average Weather, Temperature and Climate
Weather in Montana in may 2025
The weather in Montana in the month of may comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout may
very bad weather 853.7cm
Weather at 6am
36°F
Clear/Sunny
30% of time
30%
16%
13%
Weather at 12pm
52°F
Clear/Sunny
31% of time
17%
16%
15%
Weather at 6pm
52°F
Clear/Sunny
24% of time
18%
18%
16%
Weather at 3am
36°F
32%
25%
15%
15%
Evolution of daily average temperature and precipitation in Montana in may
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Montana in may.
The climate of Montana in may is very bad
the weather in Montana in may is wet (with 9.8in of rainfall over 14 days). It should be noted a worsening from the previous month since in april there is an average of 7.4in of precipitation over 12 days.
The climate is quite cold there this month, but it is bearable when dressing hot. The high seasonal norm is 54°F. In the morning the temperature drops to 36°F. Thus, the mean temperature average on this month of may in Montana is 45°F. Note that seasonal normals in contrast with those observed in Montana in may with a maximum record of 77°F in 2020 and a minimum record of 13°F in 2014. You can expect to have about 15 days with temperatures under 32°F, or 48% of time.
On average, in Montana, the days of may last 15:05. The sun rises at 04:46 and sets at 19:51.
May: another location in the United States (USA)?
If you want to go to the United States (USA) in may, there are destinations with better weather than Montana:
In may, California, Hawaii (Honolulu), Las Vegas, Phoenix (Arizona), Amarillo (Texas) and Big Bend National Park (Texas) have perfect weather.
Furthermore, Louisiana, Washington D. C., Atlanta, Boston, Chicago and Dallas have good weather.
Finally, Salt Lake City, Denver, Long Beach (Washington), Santa Fe (New Mexico), Boise (Idaho) and Bryce Canyon have a tolerable climate, but better than Montana.
Seasonal average climate and temperature of Montana in may
Check below seasonal norms These statistics are generated from the weather statements earlier years of may.
| May | |||||
| Outside temperature | |||||
| Average temperature | 45°F | ||||
| Highest temperature | 54°F | ||||
| Lowest temperature | 36°F | ||||
| Highest record temperature | 77°F (2020) | ||||
| Lowest record temperature | 13°F (2014) | ||||
| Number of days at +65°F | 5 day(s) (16%) | ||||
| Number of days at -32°F | 15 day(s) (48%) | ||||
| Wind | |||||
| Wind speed | 16km/h | ||||
| Wind temperature | 31°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 9.8in | ||||
| Number of days with rainfall | 14 day(s) (45%) | ||||
| Record daily rainfall | 2.5in (2015) | ||||
| Snowfall | 853.7cm | ||||
| Other climate data | |||||
| Humidity | 87% | ||||
| Visibility | 8.17km | ||||
| Cloud cover | 43% | ||||
| UV index | 3 | ||||
| Daily sunshine hours | 14 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 04:46 | ||||
| Time of sunset | 19:51 | ||||
| Length of day | 15:05 | ||||
| Our opinion about the weather in may | |||||
| Our opinion at whereandwhen.net | very bad | ||||
How was the weather last may?
Here is the day by day recorded weather in Montana in may 2024:
27°F to 40°F
29°F to 38°F
27°F to 49°F
29°F to 56°F
38°F to 54°F
34°F to 43°F
31°F to 38°F
31°F to 38°F
34°F to 49°F
32°F to 56°F
41°F to 65°F
47°F to 68°F
47°F to 63°F
45°F to 56°F
41°F to 61°F
45°F to 67°F
45°F to 56°F
34°F to 56°F
36°F to 49°F
32°F to 47°F
32°F to 54°F
40°F to 50°F
32°F to 41°F
32°F to 54°F
38°F to 54°F
38°F to 54°F
40°F to 65°F
45°F to 70°F
50°F to 61°F
34°F to 50°F
36°F to 59°F
Map: other cities in the United States (USA) in may
Cities near Montana:
| Helena (Montana) in may | very bad weather |
| Yellowstone National Park in may | very bad weather |
| Cody (Wyoming) in may | very bad weather |
| Glacier National Park (Montana) in may | very bad weather |
| Grand Teton National Park (Wyoming) in may | very bad weather |
| Jackson Hole in may | very bad weather |
| Wyoming in may | tolerable weather |
| Boise (Idaho) in may | tolerable weather |
| Mount Rushmore in may | tolerable weather |
| Salt Lake City in may | tolerable weather |
| North Dakota in may | tolerable weather |
| Utah in may | tolerable weather |
Click over cities on the map for information about the weather in may.
Montana
perfect weather
good
tolerable
bad
very bad
Weather data for Montana in may:
Weather data for Montana for may are derived from an average of the weather forecast since 2009 in Montana. There is a margin of error and these forecasts are to be considered as general information only. The weather in Montana can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Montana.