Weather in Spearfish in September

Spearfish temperatures in September range from 10 to 25 and there is an average of 10 days of rain.
Avg Temp
10° - 25°
Avg Rainy Days
10
Avg Dry Days
20
Avg Snow Days
0
Full weather report for today ››

Weather forecast for the next 14 days ››

Weather Facts - Spearfish in September

* The warmest temperature recorded in in September is 41°C
* The coldest temperature recorded in Spearfish in September is (-3°C)
* The average rainfall in Spearfish in September is 37 mm

Yearly Average for Spearfish

Max Temp
Min Temp
Rainy Days
Jan.
5°
(-8°)
7
Feb.
4°
(-8°)
7
March
10°
(-3°)
11
April
16°
2°
12
May
20°
7°
15
June
26°
13°
15
July
33°
18°
13
August
31°
16°
11
Sep.
25°
10°
10
Oct.
16°
4°
10
Nov.
9°
(-3°)
7
Dec.
4°
(-8°)
5

Average Temperature in Spearfish