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Opheim September Weather

Averages and records for weather in Opheim, Montana in the month of September.

Typical Opheim September Weather 1991–2020
Average daily high	67.8 °F
Average daily low	38.3 °F
Average monthly precipitation	1.2 inches
Average monthly snow	0.2 inches
Daily chance of precipitation	18.1%
Daily chance of snow	0.37%

Opheim September Weather Records 1928–2023
Highest temperature	100 °F	September 1, 1983
Lowest temperature	8 °F	September 21, 1995
Highest daily low	67 °F	September 1, 2004
Lowest daily high	25 °F	September 24, 1934
Hottest average high temperature	77.2 °F	1998
Coldest average high temperature	53.2 °F	1965
Most daily precipitation	3.4 inches	September 11, 1978
Most monthly precipitation	6.1 inches	1978
Most daily snow	3.0 inches	September 30, 1983
Most monthly snow	4.5 inches	1934

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
September 1	74.5	43.7	100	22
September 2	74.1	43.4	97	27
September 3	73.7	43.1	98	28
September 4	73.2	42.8	98	29
September 5	72.7	42.5	93	25
September 6	72.1	42.0	95	28
September 7	71.5	41.5	94	27
September 8	71.0	41.0	92	14
September 9	70.5	40.7	94	19
September 10	70.0	40.4	90	14
September 11	69.7	40.0	90	15
September 12	69.3	39.6	95	17
September 13	68.8	39.2	87	9
September 14	68.3	38.8	91	13
September 15	68.0	38.4	90	22
September 16	67.6	38.1	94	18
September 17	67.1	37.7	91	21
September 18	66.5	37.3	90	13
September 19	65.9	36.8	90	14
September 20	65.3	36.3	85	15
September 21	64.7	35.9	88	8
September 22	64.2	35.6	86	18
September 23	63.8	35.2	90	10
September 24	63.3	34.8	85	20
September 25	62.9	34.4	88	19
September 26	62.4	34.0	87	9
September 27	62.0	33.7	84	17
September 28	61.5	33.3	85	14
September 29	60.9	33.0	86	16
September 30	60.3	32.5	88	14

Weather Station Details

Years	Station	Coordinates
1943–2023	Opheim 12 SSE	location
1928–1943	Opheim	location