What’s the climate like in Glacier National Park?
The current climate of Glacier National Park features average monthly temperatures ranging from highs of 26°C during the day to lows of -1°C. The average yearly temperature is around 12°C. At night, temperatures in the colder months average around -11°C and in the warmer months around 10°C.
The highest temperature recorded in Glacier National Park in recent years was 38°C in August 2018. The lowest daytime temperature recorded was -28°C in December 2022.
On average, Glacier National Park gets 450 mm of precipitation each year. Of this, about 800 cm is snowfall. For comparison, UK gets 701 mm of precipitation each year.
Best time to visit Glacier National Park?
The best time to visit Glacier National Park for sunny weather is June through September. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Glacier National Park. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
Climate Table of Glacier National Park
The climate table of Glacier National Park shows the average temperatures, precipitation, snow, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 2 | -1 | 5 | 10 | 17 | 21 | 26 | 25 | 19 | 12 | 5 | 0 |
| Temp. min (°C) | -7 | -11 | -5 | 0 | 6 | 9 | 11 | 10 | 6 | 1 | -3 | -9 |
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| Precipitation (mm) | 20 | 28 | 22 | 39 | 50 | 40 | 17 | 38 | 39 | 31 | 87 | 39 |
| Snow (cm) | 83 | 144 | 110 | 66 | 10 | 1,3 | 0 | 0 | 8,5 | 29 | 110 | 238 |
| UV Index | 2 | 3 | 5 | 6 | 7 | 7 | 8 | 7 | 5 | 4 | 2 | 2 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 12°C
- Highest temperature: 26°C in July
- Lowest temperature: -1°C in February
- Precipitation*: 450 mm per year, averaging 38 mm per month
- Snowfall: 800 cm per year
- Driest months: 17 mm in July, 20 mm in January and 22 mm in March
- Wettest months: 87 mm in November, 50 mm in May and 40 mm in June
*Precipitation is measured as a combination of rain, snow, and hail
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Table of Contents
Average Temperature per Month in Glacier National Park
This graph shows the average maximum temperatures per month in Glacier National Park, Montana. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Glacier National Park
This graph shows how much precipitation Glacier National Park, Montana, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average Snowfall per Month in Glacier National Park
This graph shows how much snow Glacier National Park, Montana, gets on average per month. The amount of snowfall is measured in centimetres and the average is calculated based on the recorded snowfall per month from past years.
Average UV Index per Month in Glacier National Park
This graph shows the average UV index per month in Glacier National Park, Montana. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Glacier National Park
This graph shows the average yearly temperature in Glacier National Park, Montana. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Glacier National Park
This chart shows the total yearly precipitation in Glacier National Park, Montana, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Total Yearly Snowfall in Glacier National Park
This chart shows the total yearly snowfall in Glacier National Park, Montana, over the past few years. The total yearly snowfall, measured in centimetres, is the sum of all the snow that fell in the twelve months of that year.
Weather experiences 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.
