World Resorts USA Rapid City

Rapid City Monthly Weather Averages

Please click on any column to get detailed information about Rapid City 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
36.1
45.1
57.1
77.0
84.1
85.4
76.0
62.7
49.1
43.4
31.7
32.3
26.2
32.8
42.6
57.9
64.4
64.7
58.0
46.4
34.3
30.1
20.0
22.0
Day temperature   
Night temperature

The warmest month in Rapid City is july. The average daily temp is 85.4°F. The average nightly temp is 64.7°F.

Precipitation total, 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
0.3
0.1
0.7
0.4
0.5
0.8
0.9
1.3
1.1
0.4
0.3
0.2

November is the month with least precipitations during the year. The average precipitation totals for this month is 0.1 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
3
1
0
1
1
1
1
2
2
2
0
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
12
9.2
9
8.5
8.1
7.9
7.8
8.4
8.6
10.2
8.9
8.8
8.5
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
7
4
6
2
2
4
8
10
9
9
8
10
9
5
5
7
8
9
11
9
10
8
10
14
17
20
24
22
20
17
11
10
12
12
13
Cloudy days   
Partly cloudy days   
Sunny days
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
10
11
12
13
5.6
6.4
7.9
10.4
10.9
11.4
10.5
8.6
7.3
6.9
5.9
5.7

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 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
Boston
+43°F
Washington
+75°F
Hawaii
+75°F
Honolulu
+75°F
Las Vegas
+66°F
Los Angeles
+79°F
Miami
+79°F
New York
+45°F
Orlando
+88°F
San Diego
+66°F
San Francisco
+54°F
Sarasota
+90°F
Tampa
+91°F
Houston
+79°F
Chicago
+50°F
all places
24 Hours Forecast
Rapid City
Local time: 13:19
April 05, saturday
1500
48°F
S
11 mph
1800
48°F
S
9 mph
2100
36°F
NE
3 mph
April 06, sunday
0000
30°F
NE
7 mph
0300
28°F
NE
6 mph
0600
30°F
E
6 mph
0900
39°F
E
4 mph
1200
50°F
S
7 mph
Units of measurement: °C / °F