World Resorts USA Great Falls

Great Falls Monthly Weather Averages

Please click on any column to get detailed information about Great Falls weather in that particular month. You will get daily weather information for that month for the last several years.

Day & Night air temperature, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
14
28
42
56
70
84
98
112
33.0
40.9
56.2
73.8
81.9
84.5
71.0
60.4
48.7
41.6
28.7
30.3
25.1
29.3
39.6
53.7
62.0
62.1
53.6
45.7
35.1
29.4
19.2
22.5
Day temperature   
Night temperature

The warmest month in Great Falls is july. The average daily temp is 84.5°F. The average nightly temp is 62.1°F.

Precipitation total, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.3
0.5
0.8
1.1
1.3
1.6
1.9
0.3
0.4
0.5
0.9
0.6
0.3
1.5
1.6
0.7
0.4
0.3
0.3

July is the month with least precipitations during the year. The average precipitation totals for this month is 0.3 in. The month with most precipitation total is May.

Number of rainy days

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
5
0
1
1
2
1
0
3
4
1
1
0
0

This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.

Wind speed, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
10
11
8.8
9.7
8.2
7.7
7.1
7.1
8.1
8.1
8.9
8.3
9.3
9
Sunny, partly cloudy and cloudy days
1
2
3
4
5
6
7
8
9
10
11
12
0
5
10
15
20
25
30
35
11
8
8
5
3
6
10
12
11
12
11
9
11
8
5
7
7
9
10
8
11
8
9
11
11
15
20
21
23
15
11
10
9
9
11
Cloudy days   
Partly cloudy days   
Sunny days
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
2
4
6
8
10
12
14
4.4
5.2
7.1
9.1
10.8
12.4
10.6
8.3
7.1
6.3
4.8
4.8

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

* Charts above show average data for the last 3 years.

Best time for vacation in Great Falls

Sunniest months:
July 23 days
August 21 days
September 20 days
Warmest months:
July 84.5 °F
August 81.9 °F
September 73.8 °F
Coldest months:
February 28.7 °F
January 30.3 °F
December 33.0 °F
Rainiest months:
May 4 days
June 3 days
September 2 days
Windiest months:
November 9.7 mph
February 9.3 mph
January 9.0 mph

Great Falls on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
Boston
+39°F
Washington
+79°F
Hawaii
+77°F
Honolulu
+77°F
Las Vegas
+72°F
Los Angeles
+72°F
Miami
+77°F
New York
+46°F
Orlando
+77°F
San Diego
+63°F
San Francisco
+57°F
Sarasota
+77°F
Tampa
+79°F
Houston
+75°F
Chicago
+46°F
all places
24 Hours Forecast
Great Falls
Local time: 17:42
April 05, saturday
1800
57°F
NE
12 mph
2100
41°F
NE
6 mph
April 06, sunday
0000
32°F
NE
6 mph
0300
27°F
NE
6 mph
0600
27°F
NE
6 mph
0900
36°F
NE
6 mph
1200
52°F
NE
8 mph
1500
61°F
NE
11 mph
Units of measurement: °C / °F