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Chelan August Weather

Averages and records for weather in Chelan, Washington in the month of August.

Typical Chelan August Weather 1991–2020
Average daily high	85.8 °F
Average daily low	60.5 °F
Average monthly precipitation	0.3 inches
Average monthly snow	none
Daily chance of precipitation	6.7%
Daily chance of snow	0%

Chelan August Weather Records 1890–2024
Highest temperature	106 °F	August 4, 2021
Lowest temperature	42 °F	August 22, 1960
Highest daily low	76 °F	August 12, 2021
Lowest daily high	60 °F	August 20, 1968
Hottest average high temperature	91.7 °F	1967
Coldest average high temperature	77.9 °F	1995
Most daily precipitation	1.5 inches	August 19, 1975
Most monthly precipitation	2.4 inches	1975
Most daily snow	none	-
Most monthly snow	none	-

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

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
August 1	87.8	62.5	103	53
August 2	87.9	62.6	101	49
August 3	87.9	62.5	102	50
August 4	87.9	62.5	106	46
August 5	87.9	62.5	105	48
August 6	87.9	62.4	101	49
August 7	87.9	62.3	100	51
August 8	87.7	62.2	103	52
August 9	87.6	62.0	102	49
August 10	87.3	61.8	100	44
August 11	87.0	61.6	102	52
August 12	86.7	61.3	105	49
August 13	86.5	61.1	105	50
August 14	86.3	60.9	103	49
August 15	86.1	60.8	104	48
August 16	85.9	60.5	104	50
August 17	85.6	60.3	99	49
August 18	85.4	60.2	103	47
August 19	85.2	59.9	99	46
August 20	84.9	59.7	101	50
August 21	84.6	59.4	97	47
August 22	84.4	59.1	100	42
August 23	84.1	58.8	100	46
August 24	83.8	58.6	100	45
August 25	83.5	58.2	101	47
August 26	83.1	58.0	99	47
August 27	82.8	57.7	93	45
August 28	82.5	57.4	98	47
August 29	82.2	57.1	97	43
August 30	82.0	56.8	95	46
August 31	81.7	56.4	97	47

Weather Station Details

Years	Station	Coordinates
1890–2024	Chelan	location