World Resorts USA Rapid City Weather

Rapid City weather in May

Weather in Rapid City: May

Average day temperature: 62.7°F
Average night temperature: 46.4°F
Number of sunny days: 11 days
Day length: 14.2 - 15.3 hours
Number of rainy days: 2 days
Precipitation totals: 1.3 in.

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 79°F. At the same time the lowest night temperature was 32°F. Daily and nightly averages during May were 62.2°F and 46.8°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
37%
37%
27%

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
0.2
0.4
0.7
0.9
1.1
1.3
1.5
1.1
1.3
1.1

Precipitation total value in Rapid City in May is 1.3 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
3.5
5.2
7.0
8.7
10.5
12.2
9.2
9.0
8.5
8.1
7.9
7.8
8.4
10.2
8.9
8.8
8.5
9.2
9.0
8.5
8.1
7.9
7.8
8.4
8.6
10.2
8.9
8.8
8.5

The average wind speed value in May is 8.6 mph

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.9
3.9
5.8
7.8
9.7
11.7
13.6
15.6
5.6
6.4
7.9
10.4
10.9
11.4
10.5
7.3
6.9
5.9
5.7
5.6
6.4
7.9
10.4
10.9
11.4
10.5
8.6
7.3
6.9
5.9
5.7

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: 8.6.

Best time for vacation in Rapid City

Sunniest months:
September 24 days
August 22 days
July 20 days
Warmest months:
July 85.4 °F
August 84.1 °F
September 77.0 °F
Coldest months:
February 31.7 °F
January 32.3 °F
December 36.1 °F
Rainiest months:
April 2 days
May 2 days
June 2 days
Windiest months:
April 10.2 mph
December 9.2 mph
November 9.0 mph

Rapid City on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+59°F
+63°F
+77°F
+77°F
+66°F
+66°F
+79°F
+55°F
+86°F
+61°F
+61°F
+90°F
+91°F
+75°F
+41°F
24 Hours Forecast
Rapid City
Local time: 16:00
April 04, friday
1800
37°F
S
13 mph
2100
27°F
SE
6 mph
April 05, saturday
0000
25°F
E
6 mph
0300
25°F
E
6 mph
0600
25°F
E
6 mph
0900
34°F
SE
6 mph
1200
43°F
SE
13 mph
1500
48°F
S
12 mph
Units of measurement: °C / °F