Rapid City Weather Information

Rapid City historical weather data by month.

Chance Of Sunshine

ANNUAL CHANCE OF SUNSHINE 61.68%
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Annual chance of sunshine: 61.68%
Month
% Sunny
Clear Days
Partly Cloudy Days
Cloudy Days
January
51.61%
8
8
15
February
50.00%
6
8
14
March
50.00%
6
9
15
April
51.61%
6
10
15
May
58.06%
7
11
13
June
66.67%
9
11
10
July
83.87%
13
13
5
August
83.87%
14
12
5
September
73.33%
13
9
8
October
64.52%
12
8
11
November
53.33%
8
8
14
December
53.33%
8
8
14

Temperature

JULY HIGH 82.7° - JANUARY LOW 10.3°
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Month
Average
Max Average
Min Average
January
22.3°
34.3°
10.3°
February
26.2°
38.1°
14.3°
March
33.4°
45.4°
21.3°
April
42.8°
54.6°
31°
May
53.5°
64.8°
42.1°
June
63.4°
75°
51.7°
July
70.2°
82.7°
57.6°
August
68.8°
82.4°
55.1°
September
58.7°
72.8°
44.6°
October
47.3°
60.8°
33.8°
November
32.8°
44.3°
21.2°
December
24.9°
37°
12.7°

Rainfall

Average Annual Rainfall 18.45 inches
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Month
Average Rainfall
January
0.29 Inches
February
0.36 Inches
March
0.9 Inches
April
1.97 Inches
May
3.46 Inches
June
3.04 Inches
July
2.71 Inches
August
2.09 Inches
September
1.23 Inches
October
1.57 Inches
November
0.53 Inches
December
0.3 Inches

Sum Of Heating & Cooling Degree Days

Potential Demand For Energy
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Month
Heating Degree Days
Cooling Degree Days
January
1325
0
February
1086
0
March
980
0
April
667
0
May
367
8
June
126
76
July
33
192
August
46
162
September
232
42
October
549
0
November
967
0
December
1245
0