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Olney July Weather

Averages and records for weather in Olney, Illinois in the month of July.

Typical Olney July Weather 1991–2020
Average daily high	87.4 °F
Average daily low	66.2 °F
Average monthly precipitation	4.8 inches
Average monthly snow	none
Daily chance of precipitation	29.6%
Daily chance of snow	0%

Olney July Weather Records 1893–2024
Highest temperature	112 °F	July 15, 1936
Lowest temperature	45 °F	July 1, 1937
Highest daily low	81 °F	July 29, 1901
Lowest daily high	66 °F	July 25, 2004
Hottest average high temperature	99.9 °F	1936
Coldest average high temperature	82.0 °F	2009
Most daily precipitation	4.6 inches	July 10, 1933
Most monthly precipitation	11.7 inches	1958
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
July 1	87.0	65.3	102	45
July 2	87.1	65.4	107	48
July 3	87.1	65.4	104	50
July 4	87.2	65.5	100	48
July 5	87.2	65.6	102	48
July 6	87.3	65.8	106	48
July 7	87.4	65.9	109	48
July 8	87.4	66.0	110	53
July 9	87.5	66.0	105	50
July 10	87.5	66.1	108	47
July 11	87.5	66.1	109	49
July 12	87.6	66.2	110	52
July 13	87.6	66.2	109	52
July 14	87.6	66.3	112	48
July 15	87.5	66.3	112	49
July 16	87.5	66.3	102	48
July 17	87.5	66.3	100	52
July 18	87.5	66.3	107	52
July 19	87.6	66.3	106	51
July 20	87.6	66.2	107	50
July 21	87.6	66.2	105	48
July 22	87.5	66.2	108	47
July 23	87.4	66.1	104	46
July 24	87.3	66.0	109	49
July 25	87.2	66.0	105	50
July 26	87.2	66.0	106	49
July 27	87.2	65.9	110	48
July 28	87.2	65.9	111	50
July 29	87.1	65.8	104	50
July 30	87.1	65.7	104	49
July 31	87.0	65.6	103	46

Weather Station Details

Years	Station	Coordinates
1893–2024	Olney 2S	location