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Gunnison September Weather

Averages and records for weather in Gunnison, Colorado in the month of September.

Typical Gunnison September Weather 1991–2020
Average daily high	70.6 °F
Average daily low	34.0 °F
Average monthly precipitation	1.2 inches
Average monthly snow	0.2 inches
Daily chance of precipitation	31.2%
Daily chance of snow	0.12%

Gunnison September Weather Records 1893–2024
Highest temperature	92 °F	September 22, 1983
Lowest temperature	9 °F	September 21, 1978
Highest daily low	60 °F	September 4, 1925
Lowest daily high	39 °F	September 30, 1959
Hottest average high temperature	79.9 °F	1948
Coldest average high temperature	61.5 °F	1927
Most daily precipitation	1.2 inches	September 9, 2020
Most monthly precipitation	3.3 inches	1970
Most daily snow	6.5 inches	September 9, 2020
Most monthly snow	7.0 inches	1912

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	74.8	39.2	89	22
September 2	74.5	38.9	89	22
September 3	74.2	38.6	91	23
September 4	74.0	38.3	90	23
September 5	73.7	37.9	88	23
September 6	73.4	37.6	88	25
September 7	73.2	37.2	88	24
September 8	72.9	36.8	87	25
September 9	72.5	36.5	85	19
September 10	72.2	36.0	85	15
September 11	71.8	35.5	85	18
September 12	71.6	35.0	83	22
September 13	71.4	34.7	83	19
September 14	71.1	34.3	87	19
September 15	70.9	33.9	86	17
September 16	70.6	33.6	89	13
September 17	70.4	33.2	86	19
September 18	70.0	32.9	85	19
September 19	69.7	32.5	87	14
September 20	69.3	32.2	85	15
September 21	69.0	31.7	87	9
September 22	68.6	31.3	92	15
September 23	68.2	30.9	90	13
September 24	67.9	30.4	81	14
September 25	67.6	30.0	79	14
September 26	67.4	29.6	81	15
September 27	67.1	29.2	82	14
September 28	66.8	28.8	80	13
September 29	66.5	28.4	81	14
September 30	66.2	28.0	82	14

Weather Station Details

Years	Station	Coordinates
1893–2024	Gunnison 3SW	location