Average data for 10 years
1 September
Sunday
+20°
+17°
2 September
Monday
+19°
+17°
3 September
Tuesday
+20°
+16°
4 September
Wednesday
+19°
+17°
5 September
Thursday
+18°
+16°
6 September
Friday
+18°
+16°
7 September
Saturday
+19°
+16°
8 September
Sunday
+18°
+15°
9 September
Monday
+18°
+16°
10 September
Tuesday
+18°
+14°
11 September
Wednesday
+18°
+15°
12 September
Thursday
+17°
+14°
13 September
Friday
+18°
+15°
14 September
Saturday
+17°
+15°
15 September
Sunday
+17°
+14°
16 September
Monday
+16°
+13°
17 September
Tuesday
+16°
+14°
18 September
Wednesday
+16°
+14°
19 September
Thursday
+16°
+14°
20 September
Friday
+16°
+14°
21 September
Saturday
+18°
+14°
22 September
Sunday
+17°
+14°
23 September
Monday
+16°
+15°
24 September
Tuesday
+16°
+14°
25 September
Wednesday
+15°
+12°
26 September
Thursday
+17°
+14°
27 September
Friday
+17°
+15°
28 September
Saturday
+16°
+15°
29 September
Sunday
+15°
+13°
30 September
Monday
+15°
+13°
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September in Thomaston is the sunniest month of the year. In September, the weather in Thomaston is typically warm. Average daily high temperature in September is about 17 degrees above zero. On average, Thomaston has 14 sunny, 10 partly cloudy, 5 rainy, and 1 cloudy day in September. The rains are usually heavy.