Weather in Great Falls: May
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Average day temperature: | 60.4°F |
Average night temperature: | 45.7°F | |
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Number of sunny days: | 11 days |
Day length: | 14.5 - 15.7 hours | |
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Number of rainy days: | 4 days |
Precipitation totals: | 1.6 in. | |
more information |
14 days
forecast
forecast
Great Falls |
weather in
June
June
Great Falls |
Air temperature in May, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
13
26
39
52
65
78
91
104
Day temperature | Night temperature |
The highest day temperature during May of 2024 was 77°F. At the same time the lowest night temperature was 32°F. Daily and nightly averages during May were 57.8°F and 43.5°F.
Sunny, partly cloudy and cloudy days
Sunny days | |
Partly cloudy days | |
Cloudy days |
35%
32%
32%
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, 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
1.5
1.5
1.6
Precipitation total value in Great Falls in May is 1.6 in. Other months of the year show relatively similar values.
Wind speed in May, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.7
3.3
5.0
6.6
8.3
10.0
11.6
13.3
8.8
9.7
8.2
7.7
7.1
7.1
8.1
8.9
8.3
9.3
9.0
8.8
9.7
8.2
7.7
7.1
7.1
8.1
8.1
8.9
8.3
9.3
9.0
The average wind speed value in May is 8.1 mph
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.1
4.2
6.4
8.5
10.6
12.7
14.9
4.4
5.2
7.1
9.1
10.8
12.4
10.6
7.1
6.3
4.8
4.8
4.4
5.2
7.1
9.1
10.8
12.4
10.6
8.3
7.1
6.3
4.8
4.8
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 8.3.
Best time for vacation in Great Falls
Great Falls on a weather map
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Places in USA:
Name
°F
24 Hours Forecast
Great Falls
Local time: 14:02
April 22, tuesday
1500

50°F
SE
8 mph
8 mph
1800

48°F
S
8 mph
8 mph
2100

43°F
SW
7 mph
7 mph
April 23, wednesday
0000

36°F
W
4 mph
4 mph
0300

30°F
NW
2 mph
2 mph
0600

27°F
N
2 mph
2 mph
0900

41°F
NW
2 mph
2 mph
1200

54°F
SW
3 mph
3 mph