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Dillon July Weather

Averages and records for weather in Dillon, Montana in the month of July.

Typical Dillon July Weather 1991–2020
Average daily high	84.1 °F
Average daily low	49.5 °F
Average monthly precipitation	0.8 inches
Daily chance of precipitation	20.6%

Dillon July Weather Records 1895–2024
Highest temperature	102 °F	July 12, 2002
Lowest temperature	31 °F	July 30, 1913
Highest daily low	71 °F	July 30, 1934
Lowest daily high	46 °F	July 3, 1903
Hottest average high temperature	89.9 °F	2007
Coldest average high temperature	73.7 °F	1915
Most daily precipitation	1.4 inches	July 17, 1987
Most monthly precipitation	4.7 inches	1915

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

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
July 1	79.3	47.1	93	32
July 2	79.9	47.3	94	33
July 3	80.3	47.6	95	32
July 4	80.8	47.8	96	33
July 5	81.3	48.1	98	37
July 6	81.6	48.3	97	32
July 7	82.0	48.5	97	32
July 8	82.3	48.6	95	32
July 9	82.6	48.8	95	36
July 10	82.9	49.0	95	37
July 11	83.1	49.2	99	37
July 12	83.4	49.3	102	36
July 13	83.5	49.4	99	31
July 14	83.7	49.4	95	32
July 15	83.9	49.5	96	32
July 16	84.0	49.5	96	32
July 17	84.1	49.7	97	35
July 18	84.3	49.7	99	34
July 19	84.4	49.8	99	33
July 20	84.5	49.8	101	34
July 21	84.5	49.8	97	33
July 22	84.5	49.8	98	37
July 23	84.6	49.9	99	34
July 24	84.6	49.9	95	36
July 25	84.6	49.9	95	35
July 26	84.6	49.9	98	34
July 27	84.5	49.8	97	35
July 28	84.4	49.8	95	33
July 29	84.4	49.7	98	34
July 30	84.3	49.6	98	31
July 31	84.3	49.5	96	35

Weather Station Details

Years	Station	Coordinates
1941–2024	Dillon Airport	location
1895–1940	University of Montana Western	location