Average Sunshine in Montana for July

Number of Sunny Days

In the table below, the average number of Sunny Days for a city in Montana is the total days this month when the sky is mostly clear. This includes the days when cloud covers up to 30% of the sky during daylight hours.

Partly Sunny Days have cloud covering from 40% to 70% of the sky during the daytime. The rest of the days during July are mainly overcast, with at least 80% cloud cover.

Total Days With Sun is a sum of the Sunny plus Partly Sunny days. All the numbers are averages, made from years of weather watching, for total days in the month.

Days of sunshine in July
City Sunny Partly Sunny Total Days
With Sun
Billings 13 12 25
Glasgow 12 12 24
Great Falls 13 12 25
Helena 14 11 25
Kalispell 14 9 23
Missoula 15 10 25

Amount of Sun

Here's another way to look at how much sunshine a city gets. The % Sun number measures the percentage of time between sunrise and sunset that sunshine reaches the ground. Again, these amounts are monthly averages based on many years of weather observations.

Percent sunshine for July
City % Sun
Billings 76
Great Falls 79
Helena 78
Missoula 81

National Climatic Data Center. Comparative Climatic Data.

Montana Sunshine
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