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Casper August Weather

Averages and records for weather in Casper, Wyoming in the month of August.

Typical Casper August Weather 1991–2020
Average daily high	86.9 °F
Average daily low	51.8 °F
Average monthly precipitation	0.8 inches
Average monthly snow	none
Daily chance of precipitation	18.8%
Daily chance of snow	0%

Casper August Weather Records 1900–2024
Highest temperature	109 °F	August 26, 1912
Lowest temperature	29 °F	August 23, 2015
Highest daily low	71 °F	August 1, 1964
Lowest daily high	52 °F	August 17, 1960
Hottest average high temperature	100.6 °F	1912
Coldest average high temperature	76.3 °F	1915
Most daily precipitation	2.2 inches	August 2, 2007
Most monthly precipitation	2.7 inches	1979
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	88.8	53.7	104	36
August 2	88.6	53.5	100	38
August 3	88.4	53.3	103	40
August 4	88.2	53.1	101	39
August 5	88.1	52.9	102	39
August 6	87.9	52.9	105	40
August 7	87.8	52.8	103	34
August 8	87.8	52.7	102	34
August 9	87.7	52.6	100	40
August 10	87.7	52.5	104	36
August 11	87.6	52.4	102	38
August 12	87.5	52.4	100	37
August 13	87.4	52.3	102	38
August 14	87.3	52.2	102	39
August 15	87.1	52.0	101	41
August 16	87.0	51.8	102	38
August 17	86.7	51.7	104	36
August 18	86.6	51.5	101	37
August 19	86.5	51.3	103	37
August 20	86.4	51.1	100	38
August 21	86.2	50.9	100	38
August 22	86.0	50.7	102	36
August 23	85.6	50.5	100	29
August 24	85.3	50.2	104	38
August 25	85.0	50.0	108	36
August 26	84.6	49.7	109	39
August 27	84.3	49.5	104	36
August 28	83.9	49.2	107	34
August 29	83.5	48.9	97	34
August 30	83.1	48.6	99	34
August 31	82.9	48.3	94	33

Weather Station Details

Years	Station	Coordinates
1949–2024	Casper-Natrona County International Airport	location
1900–1948	Casper 2 E	location