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Alta September Weather

Averages and records for weather in Alta, Utah in the month of September.

Typical Alta September Weather 1991–2020
Average daily high	62.4 °F
Average daily low	41.0 °F
Average monthly precipitation	2.7 inches
Average monthly snow	3.5 inches
Daily chance of precipitation	29.1%
Daily chance of snow	2.7%

Alta September Weather Records 1905–2024
Highest temperature	83 °F	September 7, 2022
Lowest temperature	16 °F	September 30, 2007
Highest daily low	59 °F	September 7, 2022
Lowest daily high	28 °F	September 25, 1984
Hottest average high temperature	69.3 °F	1979
Coldest average high temperature	53.3 °F	1986
Most daily precipitation	3.4 inches	September 27, 1982
Most monthly precipitation	13.5 inches	1982
Most daily snow	15.0 inches	September 30, 1982
Most monthly snow	45.0 inches	1982

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	67.7	45.7	78	30
September 2	67.4	45.5	78	26
September 3	67.1	45.2	80	28
September 4	66.7	44.9	79	29
September 5	66.4	44.5	81	31
September 6	65.9	44.1	82	28
September 7	65.6	43.7	83	30
September 8	65.2	43.4	79	20
September 9	64.8	43.1	78	24
September 10	64.4	42.7	75	29
September 11	64.1	42.3	77	25
September 12	63.7	42.1	78	25
September 13	63.3	41.7	77	25
September 14	63.0	41.3	78	25
September 15	62.7	41.0	76	23
September 16	62.5	40.7	74	23
September 17	62.1	40.4	75	20
September 18	61.7	40.1	76	17
September 19	61.2	39.7	74	23
September 20	60.7	39.3	73	23
September 21	60.2	38.8	72	19
September 22	59.6	38.4	71	23
September 23	59.2	38.0	73	23
September 24	58.8	37.7	74	19
September 25	58.5	37.3	74	17
September 26	58.1	37.0	72	17
September 27	57.7	36.6	72	24
September 28	57.3	36.3	73	17
September 29	57.0	36.0	72	18
September 30	56.6	35.6	73	16

Weather Station Details

Years	Station	Coordinates
1905–2024	Alta	location