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Rockwell City September Weather

Averages and records for weather in Rockwell City, Iowa in the month of September.

Typical Rockwell City September Weather 1991–2020
Average daily high	75.0 °F
Average daily low	51.6 °F
Average monthly precipitation	2.9 inches
Average monthly snow	none
Daily chance of precipitation	25.9%
Daily chance of snow	0%

Rockwell City September Weather Records 1894–2023
Highest temperature	102 °F	September 7, 1939
Lowest temperature	20 °F	September 29, 1899
Highest daily low	76 °F	September 5, 1925
Lowest daily high	40 °F	September 29, 1985
Hottest average high temperature	85.9 °F	1897
Coldest average high temperature	68.1 °F	1965
Most daily precipitation	5.3 inches	September 10, 1911
Most monthly precipitation	14.2 inches	1965
Most daily snow	1.4 inches	September 26, 1942
Most monthly snow	1.9 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	79.2	57.0	96	40
September 2	79.0	56.7	97	43
September 3	78.9	56.4	98	36
September 4	78.8	56.2	99	39
September 5	78.5	55.9	98	37
September 6	78.3	55.6	102	40
September 7	78.0	55.2	102	36
September 8	77.7	54.7	100	39
September 9	77.2	54.2	98	39
September 10	76.9	53.7	98	38
September 11	76.5	53.3	95	35
September 12	76.1	52.7	98	36
September 13	75.8	52.2	99	34
September 14	75.5	51.8	100	35
September 15	75.2	51.3	99	32
September 16	74.9	50.9	96	33
September 17	74.7	50.5	95	32
September 18	74.4	50.0	95	28
September 19	74.0	49.6	98	30
September 20	73.5	49.2	92	28
September 21	73.1	48.7	96	31
September 22	72.6	48.3	96	26
September 23	72.3	48.0	91	29
September 24	72.1	47.6	89	28
September 25	71.8	47.1	91	28
September 26	71.4	46.7	93	28
September 27	71.0	46.2	92	28
September 28	70.6	45.8	90	22
September 29	70.2	45.3	89	20
September 30	69.8	44.9	90	22

Weather Station Details

Years	Station	Coordinates
1894–2023	Rockwell City	location