Glacier Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Glacier.
Climate overview of Glacier
Temperatures in Glacier, United States of America, vary greatly throughout the year. July is the hottest month at 21°C (70°F), while December is the coldest at 3°C (37°F).
With around 2049 mm (81 in) of annual rain/snowfall, Glacier has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has a distinct rainy season from October to March, with pleasant summers and cold winters. The wettest month is November. Sunshine peaks in July, when the city sees around 9.4 hours of sunshine per day.
Glacier Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Glacier - and find the best time to visit.
Monthly Temperature in Glacier
The climate in Glacier is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a pleasant 21°C (70°F) in July. In December, the coolest month of the year, temperatures drop to a chilly 3°C (37°F).
At night, temperatures range from around 11°C (52°F) in July to -2°C (28°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Glacier
Glacier has a notably wet climate with abundant precipitation, recording 2049 mm (81 in) of rain/snowfall per year. Glacier can be quite wet during November, receiving approximately 315 mm (12 in) of precipitation over 26 snowy/rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 42 mm (1.7 in) of precipitation spread across 10 rainy days. For more details, please visit our Glacier Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Glacier
Glacier can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.4 hours of sunshine daily. In contrast, the city experiences much darker days in November, with only 2.0 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Glacier
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July and August
- Wettest months: January, February, March, October, November and December, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from October to March, with pleasant summers and cold winters
- Coldest conditions: December, with freezing nights around -2°C (28°F).
Frequently asked questions about the climate in Glacier
What is the best time to visit Glacier?
July and August typically offer the most optimal weather in Glacier. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Glacier has a distinct rainy season from October to March, with pleasant summers and cold winters.
What temperatures can I expect in Glacier?
Daytime highs range from 3°C (37°F) in December to 21°C (70°F) in July. Nighttime lows range from -2°C (28°F) to 11°C (52°F). Temperatures vary considerably through the year.
How much rain does Glacier get?
Annual rainfall is around 2049 mm (81 in). November is the wettest month with 315 mm (12 in), while July is the driest with 42 mm (1.7 in). In the coldest months, precipitation may fall as snow/rain.
How sunny is Glacier?
Glacier receives around 1,887 hours of sunshine per year. July is the sunniest month with 281 hours, while November is the cloudiest with just 61 hours.
Glacier 3-Day Forecast
Glacier on the map
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