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United StatesThe weather in May in Glacier National Park
It's cool to moderate in May in Glacier National Park with an average temperature of 17°C. Temperatures this month range from a low of 12°C to a high of 21°C. At night, you can expect temperatures between 3°C and 10°C.
Looking for sun and warm weather? May isn’t a good month to be in Glacier National Park. The temperatures are too low for a warm stay this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Glacier National Park, Montana. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Precipitation and snowfall
In May, there is an average of 50 mm of precipitation, spread over 8 days. Of the total precipitation, about 11 cm falls as snow in May. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in May for Glacier National Park
Click on any day in May to get detailed info about the usual weather on that day in Glacier National Park. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Glacier National Park | New York | |
|---|---|---|
| Average temperature | 17°C | 22°C |
| Max. temperature | 21°C | 28°C |
| Min. temperature | 3°C | -5°C |
| Total precipitation | 50 mm | 105 mm |
| Rainy days | 8 days | 14 days |
| Total snowfall | 11 cm | 0 cm |
| Snowy days | 6 days | 0 days |
Start of May
The month of May starts in Glacier National Park with cool temps, averaging around 17°C during the day and nights around 5°C.
Mid May
By mid-May, daytime temps stay steady at around 17°C, with nights around 5°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of May
By the end of May, the average daytime temperature in Glacier National Park is around 20°C, while nighttime temps are about 8°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Glacier National Park for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in Glacier National Park, Montana. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Glacier National Park
Temperature in May in Glacier National Park over the years
Precipitation charts
These charts show the average amount of precipitation in May in Glacier National Park, Montana. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Glacier National Park
Total precipitation in May in Glacier National Park over the years
Daily Snowfall in May in Glacier National Park
Snowfall in May in Glacier National Park per year
Daily UV index in May in Glacier National Park
This chart shows the average daily UV index in May in Glacier National Park, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in May in Glacier National Park
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Average weather in Glacier National Park by month
Click on a month below to see detailed weather info for Glacier National Park. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.