Glacier National Park (Montana) in may: average Weather, Temperature and Climate
Weather in Glacier National Park (Montana) in may 2025
The weather in Glacier National Park (Montana) in the month of may comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout may
very bad weather 33.9cm
Weather at 6am
34°F
Clear/Sunny
35% of time
22%
21%
9%
Weather at 12pm
59°F
Clear/Sunny
41% of time
30%
14%
8%
Weather at 6pm
61°F
Clear/Sunny
37% of time
25%
19%
12%
Weather at 3am
34°F
40%
20%
15%
14%
Evolution of daily average temperature and precipitation in Glacier National Park (Montana) in may
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Glacier National Park (Montana) in may.
The climate of Glacier National Park (Montana) in may is very bad
The weather in may in Glacier National Park (Montana) is wet (with 3.1in of rainfall over 5 days). The weather is better from the previous month since in april it receives an average of 3.5in of precipitation over 7 days.
The climate is rather fresh there the month of may, but it is liveable when dressing cosy. The thermometer averaged maximum of 63°F. On average, the recorded minimum temperature is 34°F. Thus, the mean temperature average on this month of may in Glacier National Park (Montana) is 49°F. Note that seasonal normals in contrast with those observed in Glacier National Park (Montana) in the month of may with a maximum record of 88°F in 2020 and a minimum record of 14°F in 2009. You can expect to have about 16 days with temperatures down below 32°F, or 52% of the month.
On average, in Glacier National Park (Montana), the days of may last 15:18. The sun rises at 04:53 and sunset is at 20:11.
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 Glacier National Park (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 Glacier National Park (Montana).
Seasonal average climate and temperature of Glacier National Park (Montana) in may
Check below seasonal norms These datas are set from the weather statements earlier years of may.
| May | |||||
| Outside temperature | |||||
| Average temperature | 49°F | ||||
| Highest temperature | 63°F | ||||
| Lowest temperature | 34°F | ||||
| Highest record temperature | 88°F (2020) | ||||
| Lowest record temperature | 14°F (2009) | ||||
| Number of days at +86°F | 0 day(s) (0%) | ||||
| Number of days at +65°F | 14 day(s) (45%) | ||||
| Number of days at -32°F | 16 day(s) (52%) | ||||
| Wind | |||||
| Wind speed | 11km/h | ||||
| Wind temperature | 31°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 3.1in | ||||
| Number of days with rainfall | 5 day(s) (16%) | ||||
| Record daily rainfall | 2.1in (2016) | ||||
| Snowfall | 33.9cm | ||||
| Other climate data | |||||
| Humidity | 90% | ||||
| Visibility | 8.95km | ||||
| Cloud cover | 34% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 14 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 04:53 | ||||
| Time of sunset | 20:11 | ||||
| Length of day | 15:18 | ||||
| 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 Glacier National Park (Montana) in may 2024:
23°F to 36°F
32°F to 41°F
23°F to 45°F
23°F to 56°F
34°F to 54°F
36°F to 40°F
31°F to 36°F
36°F to 40°F
36°F to 50°F
25°F to 61°F
34°F to 67°F
40°F to 67°F
40°F to 59°F
41°F to 49°F
38°F to 61°F
38°F to 59°F
36°F to 43°F
27°F to 49°F
32°F to 43°F
31°F to 49°F
34°F to 50°F
36°F to 41°F
32°F to 49°F
31°F to 50°F
31°F to 45°F
32°F to 45°F
34°F to 61°F
38°F to 72°F
43°F to 50°F
34°F to 47°F
31°F to 59°F
Map: other cities in the United States (USA) in may
Cities near Glacier National Park (Montana):
| Helena (Montana) in may | very bad weather |
| Montana in may | very bad weather |
| Yellowstone National Park in may | very bad weather |
| Cody (Wyoming) in may | very bad weather |
| Boise (Idaho) in may | tolerable weather |
| Grand Teton National Park (Wyoming) in may | very bad weather |
| Jackson Hole in may | very bad weather |
| Mount Rainier National Park (Washington) in may | very bad weather |
| Seattle in may | good weather |
| Portland in may | good weather |
| Westport (Washington) in may | good weather |
| La Push (Washington) in may | tolerable weather |
Click over cities on the map for information about the weather in may.
Glacier National Park (Montana)
perfect weather
good
tolerable
bad
very bad
Weather data for Glacier National Park (Montana) in may:
Weather data for Glacier National Park (Montana) for may are derived from an average of the weather forecast since 2009 in Glacier National Park (Montana). There is a margin of error and these forecasts are to be considered as general information only. The weather in Glacier National Park (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 Glacier National Park (Montana).