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The tables below display average monthly climate and weather indicators in Sioux Falls South Dakota.
Temperature by: Fahrenheit / Centigrade
| Sioux Falls Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature |
-10.1 |
-6.8 |
0.3 |
8.3 |
14.7 |
20.2 |
23.5 |
21.9 |
16.1 |
9.2 |
0.6 |
-7.6 |
7.5 |
| Avg. Max Temperature |
-4.3 |
-1.3 |
5.7 |
15.0 |
21.5 |
26.9 |
30.2 |
28.5 |
22.8 |
16.2 |
6.3 |
-2.2 |
13.8 |
| Avg. Min Temperature |
-15.9 |
-12.4 |
-5.2 |
1.6 |
7.7 |
13.4 |
16.8 |
15.2 |
9.3 |
2.2 |
-5.2 |
-13.0 |
1.2 |
| Days with Max Temp of 32 C or Higher |
0.0 |
0.0 |
0.0 |
< 0.5 |
1.0 |
4.0 |
10.0 |
7.0 |
2.0 |
0.0 |
0.0 |
0.0 |
23.0 |
| Days with Min Temp Below Freezing |
31.0 |
28.0 |
25.0 |
13.0 |
2.0 |
0.0 |
0.0 |
0.0 |
1.0 |
11.0 |
26.0 |
31.0 |
168 |
| | |
| Sioux Falls Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days |
1587 |
1268 |
1008 |
543 |
240 |
50.0 |
10.0 |
22.0 |
165 |
508 |
960 |
1448 |
7809 |
| Cooling Degree Days |
0.0 |
0.0 |
0.0 |
0.0 |
35.0 |
149 |
298 |
220 |
42.0 |
0.0 |
0.0 |
0.0 |
744 |
| | |
| Sioux Falls Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) |
0.5 |
0.6 |
1.6 |
2.5 |
3.0 |
3.4 |
2.7 |
2.9 |
3.0 |
1.8 |
1.1 |
0.7 |
23.9 |
| Days with Precipitation 0.01 inch or More |
6.0 |
7.0 |
9.0 |
9.0 |
11.0 |
11.0 |
10.0 |
9.0 |
8.0 |
6.0 |
6.0 |
6.0 |
99.0 |
| Monthly Snowfall (inches) |
6.8 |
8.2 |
9.4 |
2.8 |
< 0.05 |
< 0.05 |
< 0.05 |
0.0 |
0.0 |
0.8 |
5.8 |
7.2 |
41.0 |
| | |
| Other Sioux Falls Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed |
10.9 |
11.1 |
12.4 |
12.9 |
11.8 |
10.7 |
9.8 |
9.8 |
10.3 |
10.7 |
11.5 |
10.7 |
11.1 |
| Clear Days |
8.0 |
7.0 |
6.0 |
7.0 |
7.0 |
9.0 |
12.0 |
12.0 |
12.0 |
11.0 |
7.0 |
8.0 |
105 |
| Partly Cloudy Days |
8.0 |
7.0 |
8.0 |
8.0 |
10.0 |
11.0 |
12.0 |
11.0 |
8.0 |
8.0 |
7.0 |
7.0 |
103 |
| Cloudy Days |
15.0 |
15.0 |
17.0 |
15.0 |
14.0 |
11.0 |
8.0 |
9.0 |
10.0 |
12.0 |
16.0 |
16.0 |
157 |
| Avg. Relative Humidity |
56.5 |
75.0 |
75.5 |
73.0 |
68.5 |
68.5 |
70.5 |
71.0 |
72.0 |
70.0 |
70.0 |
74.0 |
77.0 |
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