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Donaldsonville September Weather

Averages and records for weather in Donaldsonville, Louisiana in the month of September.

Typical Donaldsonville September Weather 1991–2020
Average daily high	87.9 °F
Average daily low	68.9 °F
Average monthly precipitation	5.3 inches
Average monthly snow	none
Daily chance of precipitation	29.5%
Daily chance of snow	0%

Donaldsonville September Weather Records 1893–2024
Highest temperature	103 °F	September 18, 1927
Lowest temperature	43 °F	September 28, 1909
Highest daily low	82 °F	September 1, 1981
Lowest daily high	62 °F	September 27, 2000
Hottest average high temperature	95.4 °F	1904
Coldest average high temperature	84.6 °F	1983
Most daily precipitation	8.0 inches	September 12, 1998
Most monthly precipitation	19.6 inches	1943
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	89.9	71.5	99	59
September 2	89.8	71.4	98	58
September 3	89.7	71.3	99	58
September 4	89.6	71.2	100	59
September 5	89.5	71.0	100	60
September 6	89.3	70.9	100	56
September 7	89.2	70.8	98	56
September 8	89.1	70.7	99	56
September 9	89.0	70.5	100	56
September 10	88.9	70.3	100	56
September 11	88.7	70.1	100	56
September 12	88.5	69.9	99	53
September 13	88.3	69.6	98	51
September 14	88.1	69.4	99	50
September 15	88.0	69.1	100	52
September 16	87.8	68.8	101	55
September 17	87.6	68.5	103	55
September 18	87.4	68.1	103	50
September 19	87.2	67.8	99	50
September 20	87.0	67.5	98	54
September 21	86.8	67.3	99	48
September 22	86.7	67.0	98	49
September 23	86.5	66.8	99	49
September 24	86.3	66.5	97	49
September 25	86.0	66.2	99	51
September 26	85.7	66.0	98	51
September 27	85.5	65.7	98	48
September 28	85.2	65.3	96	43
September 29	85.0	65.0	97	46
September 30	84.8	64.6	97	45

Weather Station Details

Years	Station	Coordinates
1893–2024	Donaldsonville 4 SW	location