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Duluth August Weather

Averages and records for weather in Duluth, Minnesota in the month of August.

Typical Duluth August Weather 1991–2020
Average daily high	74.9 °F
Average daily low	55.3 °F
Average monthly precipitation	3.7 inches
Average monthly snow	none
Daily chance of precipitation	34.9%
Daily chance of snow	0%

Duluth August Weather Records 1948–2024
Highest temperature	95 °F	August 30, 1961
Lowest temperature	32 °F	August 27, 1986
Highest daily low	77 °F	August 25, 2013
Lowest daily high	52 °F	August 22, 1964
Hottest average high temperature	81.3 °F	1969
Coldest average high temperature	66.8 °F	1951
Most daily precipitation	3.1 inches	August 12, 1999
Most monthly precipitation	10.3 inches	1972
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	76.6	56.2	90	43
August 2	76.6	56.2	91	42
August 3	76.5	56.1	89	39
August 4	76.3	56.0	92	38
August 5	76.1	55.9	93	40
August 6	76.1	55.8	92	40
August 7	75.9	55.8	95	38
August 8	75.8	55.8	93	42
August 9	75.7	55.7	92	42
August 10	75.6	55.6	88	41
August 11	75.6	55.6	91	37
August 12	75.6	55.6	89	42
August 13	75.5	55.6	91	37
August 14	75.3	55.6	93	36
August 15	75.1	55.4	90	35
August 16	74.8	55.3	91	35
August 17	74.7	55.1	88	39
August 18	74.6	55.0	92	38
August 19	74.5	54.9	94	37
August 20	74.3	54.8	91	36
August 21	74.2	54.7	90	37
August 22	74.1	54.5	87	39
August 23	74.0	54.3	87	36
August 24	73.7	54.1	94	35
August 25	73.4	53.9	94	40
August 26	73.1	53.7	91	36
August 27	72.8	53.5	92	32
August 28	72.7	53.3	91	34
August 29	72.4	53.2	91	33
August 30	72.1	52.9	95	38
August 31	71.7	52.6	92	33

Weather Station Details

Years	Station	Coordinates
1948–2024	Duluth	location