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Jackson Hole September Weather

Averages and records for weather in Jackson Hole, Wyoming in the month of September.

Typical Jackson Hole September Weather 1991–2020
Average daily high	70.8 °F
Average daily low	33.2 °F
Average monthly precipitation	1.6 inches
Average monthly snow	0.1 inches
Daily chance of precipitation	26.8%
Daily chance of snow	0.33%

Jackson Hole September Weather Records 1905–2024
Highest temperature	93 °F	September 18, 1956
Lowest temperature	5 °F	September 26, 1926
Highest daily low	62 °F	September 7, 1988
Lowest daily high	33 °F	September 17, 1965
Hottest average high temperature	78.0 °F	1979
Coldest average high temperature	58.3 °F	1961
Most daily precipitation	2.3 inches	September 10, 1927
Most monthly precipitation	6.5 inches	1924
Most daily snow	3.0 inches	September 25, 1936
Most monthly snow	3.5 inches	1927

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	76.2	36.8	88	20
September 2	75.9	36.6	90	24
September 3	75.6	36.4	90	22
September 4	75.1	36.3	92	18
September 5	74.7	36.0	92	22
September 6	74.3	35.8	90	20
September 7	73.9	35.5	88	18
September 8	73.5	35.2	87	21
September 9	73.0	35.0	93	15
September 10	72.6	34.7	86	20
September 11	72.3	34.4	86	12
September 12	72.0	34.1	86	17
September 13	71.6	33.9	89	18
September 14	71.2	33.5	86	18
September 15	70.9	33.2	88	16
September 16	70.7	33.0	87	16
September 17	70.4	32.9	87	13
September 18	70.0	32.7	93	14
September 19	69.4	32.5	87	13
September 20	68.8	32.3	86	9
September 21	68.2	32.0	83	12
September 22	67.7	31.7	85	8
September 23	67.3	31.4	85	14
September 24	66.9	31.1	86	16
September 25	66.5	30.8	87	9
September 26	66.1	30.5	84	5
September 27	65.7	30.2	81	15
September 28	65.2	29.9	85	13
September 29	64.8	29.6	82	16
September 30	64.4	29.4	83	9

Weather Station Details

Years	Station	Coordinates
1905–2024	Jackson	location