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Jefferson City September Weather

Averages and records for weather in Jefferson City, Missouri in the month of September.

Typical Jefferson City September Weather 1991–2020
Average daily high	79.7 °F
Average daily low	57.8 °F
Average monthly precipitation	4.2 inches
Average monthly snow	none
Daily chance of precipitation	26.0%
Daily chance of snow	0%

Jefferson City September Weather Records 1893–2024
Highest temperature	107 °F	September 3, 1939
Lowest temperature	29 °F	September 30, 1949
Highest daily low	79 °F	September 15, 1897
Lowest daily high	45 °F	September 26, 1942
Hottest average high temperature	91.4 °F	1939
Coldest average high temperature	72.4 °F	1993
Most daily precipitation	5.7 inches	September 17, 1905
Most monthly precipitation	12.8 inches	1993
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
September 1	84.8	63.6	103	40
September 2	84.5	63.3	103	41
September 3	84.1	63.0	107	42
September 4	83.9	62.7	105	34
September 5	83.7	62.5	104	38
September 6	83.4	62.2	106	40
September 7	83.0	61.9	104	43
September 8	82.7	61.5	104	38
September 9	82.4	61.1	102	38
September 10	82.0	60.7	101	41
September 11	81.5	60.2	100	37
September 12	81.1	59.8	101	39
September 13	80.6	59.3	101	33
September 14	80.3	58.8	104	37
September 15	79.9	58.3	102	38
September 16	79.6	57.8	102	38
September 17	79.4	57.4	100	39
September 18	79.2	57.0	100	39
September 19	78.9	56.7	100	33
September 20	78.5	56.3	96	32
September 21	78.1	55.9	96	32
September 22	77.7	55.4	99	30
September 23	77.3	55.0	95	30
September 24	77.0	54.5	97	33
September 25	76.6	54.1	93	31
September 26	76.2	53.7	94	34
September 27	75.7	53.3	96	31
September 28	75.4	52.8	102	31
September 29	74.9	52.4	101	30
September 30	74.6	52.0	95	29

Weather Station Details

Years	Station	Coordinates
1893–2024	Jefferson City Water Treatment Plant	location