Average data for 10 years
1 September
Sunday
+24°
+21°
2 September
Monday
+24°
+20°
3 September
Tuesday
+24°
+20°
4 September
Wednesday
+22°
+19°
5 September
Thursday
+23°
+18°
6 September
Friday
+23°
+19°
7 September
Saturday
+21°
+19°
8 September
Sunday
+21°
+19°
9 September
Monday
+22°
+18°
10 September
Tuesday
+21°
+18°
11 September
Wednesday
+21°
+16°
12 September
Thursday
+20°
+17°
13 September
Friday
+21°
+16°
14 September
Saturday
+20°
+17°
15 September
today
+18°
+15°
16 September
tomorrow
+19°
+14°
17 September
Tuesday
+21°
+17°
18 September
Wednesday
+20°
+17°
19 September
Thursday
+20°
+15°
20 September
Friday
+22°
+18°
21 September
Saturday
+20°
+18°
22 September
Sunday
+21°
+16°
23 September
Monday
+21°
+17°
24 September
Tuesday
+19°
+16°
25 September
Wednesday
+20°
+16°
26 September
Thursday
+20°
+17°
27 September
Friday
+18°
+16°
28 September
Saturday
+19°
+16°
29 September
Sunday
+16°
+14°
30 September
Monday
+15°
+13°
In September, the weather in Clarkson is typically warm. Average daily high temperature in September is about 21 degrees above zero. On average, Clarkson has 14 sunny, 9 partly cloudy, and 7 rainy days in September. The rains are usually moderate. September as well as August is considered the most comfortable time to visit Clarkson.