Butte, Montana Weather Forecast

Local

Butte, MT, US

46.00382, -112.53474

Normals for September

	Temp ( °F °C )			Precip ( " mm )		Degree Days
	Min	Max	Avg	MTD	YTD	Heating	Cooling
1	40 5	75 24	58 14	0.04 undefined	9.81 undefined	7.7	0.2
2	40 4	75 24	57 14	0.08 undefined	9.85 undefined	7.9	0.2
3	40 4	74 23	57 14	0.12 undefined	9.89 undefined	8.2	0.1
4	39 4	74 23	57 14	0.16 undefined	9.93 undefined	8.5	0.1
5	39 4	74 23	56 14	0.2 undefined	9.97 undefined	8.8	0.1
6	39 4	73 23	56 13	0.24 undefined	10.01 undefined	9.1	0.1
7	39 4	73 23	56 13	0.27 undefined	10.04 undefined	9.4	0.1
8	38 4	72 22	55 13	0.31 undefined	10.08 undefined	9.7	0.1
9	38 3	72 22	55 13	0.35 undefined	10.12 undefined	10	0.1
10	38 3	72 22	55 13	0.39 undefined	10.16 undefined	10.3	0.1
11	38 3	71 22	55 13	0.43 undefined	10.2 undefined	10.6	0.1
12	38 3	71 22	54 12	0.47 undefined	10.24 undefined	10.9	0.1
13	37 3	70 21	54 12	0.5 undefined	10.27 undefined	11.2	0.1
14	37 3	70 21	54 12	0.54 undefined	10.31 undefined	11.5	0
15	37 3	70 21	53 12	0.57 undefined	10.34 undefined	11.9	0
16	37 3	69 21	53 12	0.61 undefined	10.38 undefined	12.2	0
17	36 2	69 20	53 11	0.64 undefined	10.41 undefined	12.5	0
18	36 2	68 20	52 11	0.68 undefined	10.45 undefined	12.9	0
19	36 2	68 20	52 11	0.71 undefined	10.48 undefined	13.3	0
20	35 2	67 20	51 11	0.75 undefined	10.52 undefined	13.6	0
21	35 2	67 19	51 11	0.78 undefined	10.55 undefined	14	0
22	35 2	66 19	51 10	0.82 undefined	10.59 undefined	14.4	0
23	35 1	66 19	50 10	0.85 undefined	10.62 undefined	14.8	0
24	34 1	65 19	50 10	0.88 undefined	10.65 undefined	15.1	0
25	34 1	65 18	50 10	0.91 undefined	10.68 undefined	15.5	0
26	34 1	64 18	49 10	0.94 undefined	10.71 undefined	15.9	0
27	33 1	64 18	49 9	0.98 undefined	10.75 undefined	16.3	0
28	33 1	63 17	48 9	1.01 undefined	10.78 undefined	16.8	0
29	33 0	63 17	48 9	1.04 undefined	10.81 undefined	17.2	0
30	33 0	62 17	47 9	1.07 undefined	10.84 undefined	17.6	0