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Mandan August Weather

Averages and records for weather in Mandan, North Dakota in the month of August.

Typical Mandan August Weather 1991–2020
Average daily high	81.8 °F
Average daily low	55.6 °F
Average monthly precipitation	2.1 inches
Daily chance of precipitation	22.9%

Mandan August Weather Records 1913–2024
Highest temperature	109 °F	August 5, 1941
Lowest temperature	32 °F	August 28, 1935
Highest daily low	76 °F	August 2, 1989
Lowest daily high	51 °F	August 25, 1992
Hottest average high temperature	90.5 °F	1961
Coldest average high temperature	74.6 °F	1985
Most daily precipitation	2.9 inches	August 1, 1915
Most monthly precipitation	6.1 inches	1999

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	82.8	57.4	101	41
August 2	82.8	57.2	102	42
August 3	82.7	57.1	101	39
August 4	82.6	56.9	102	43
August 5	82.4	56.7	109	44
August 6	82.4	56.6	104	43
August 7	82.4	56.5	104	43
August 8	82.4	56.4	104	44
August 9	82.3	56.3	103	38
August 10	82.3	56.2	104	37
August 11	82.3	56.1	100	38
August 12	82.3	56.1	102	34
August 13	82.2	56.0	101	38
August 14	82.1	55.9	104	36
August 15	81.9	55.7	101	40
August 16	81.7	55.5	101	40
August 17	81.6	55.4	103	39
August 18	81.5	55.2	104	37
August 19	81.5	55.1	102	38
August 20	81.4	54.9	100	37
August 21	81.3	54.8	104	39
August 22	81.1	54.6	103	38
August 23	80.9	54.3	104	37
August 24	80.6	54.0	100	33
August 25	80.4	53.8	98	36
August 26	80.1	53.4	102	32
August 27	79.8	53.1	104	35
August 28	79.6	52.9	104	32
August 29	79.3	52.6	101	35
August 30	79.0	52.3	103	37
August 31	78.6	52.0	102	36

Weather Station Details

Years	Station	Coordinates
1913–2024	Mandan Experimental Station	location