< Previous Month Next Month >

Peoria September Weather

Averages and records for weather in Peoria, Illinois in the month of September.

Typical Peoria September Weather 1991–2020
Average daily high	77.8 °F
Average daily low	56.1 °F
Average monthly precipitation	3.5 inches
Average monthly snow	none
Daily chance of precipitation	25.4%
Daily chance of snow	0%

Peoria September Weather Records 1905–2024
Highest temperature	102 °F	September 14, 1939
Lowest temperature	26 °F	September 28, 1942
Highest daily low	76 °F	September 3, 1939
Lowest daily high	45 °F	September 25, 1942
Hottest average high temperature	85.4 °F	1939
Coldest average high temperature	69.4 °F	1918
Most daily precipitation	4.1 inches	September 13, 1961
Most monthly precipitation	13.1 inches	1961
Most daily snow	1.0 inches	September 25, 1942
Most monthly snow	1.0 inches	1942

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

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
September 1	82.1	61.5	101	44
September 2	81.9	61.2	100	44
September 3	81.7	60.9	99	43
September 4	81.6	60.7	98	40
September 5	81.4	60.5	97	45
September 6	81.1	60.2	100	41
September 7	80.8	59.8	101	43
September 8	80.5	59.5	100	39
September 9	80.1	59.0	100	45
September 10	79.7	58.6	98	41
September 11	79.4	58.1	98	35
September 12	79.1	57.7	97	41
September 13	78.7	57.3	99	39
September 14	78.3	56.8	102	37
September 15	78.0	56.3	100	37
September 16	77.7	55.9	94	35
September 17	77.4	55.5	95	36
September 18	77.0	55.1	93	34
September 19	76.6	54.8	95	35
September 20	76.2	54.4	96	32
September 21	75.7	53.9	93	35
September 22	75.3	53.5	94	34
September 23	75.0	53.1	93	29
September 24	74.7	52.7	92	33
September 25	74.4	52.3	92	33
September 26	73.9	51.9	91	29
September 27	73.6	51.5	89	32
September 28	73.2	51.1	92	26
September 29	72.8	50.7	98	32
September 30	72.4	50.3	91	30

Weather Station Details

Years	Station	Coordinates
1943–2024	Greater Peoria Airport	location
1905–1943	Peoria City Office	location