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Pierre September Weather

Averages and records for weather in Pierre, South Dakota in the month of September.

Typical Pierre September Weather 1991–2020
Average daily high	78.0 °F
Average daily low	50.1 °F
Average monthly precipitation	1.7 inches
Average monthly snow	none
Daily chance of precipitation	21.4%
Daily chance of snow	0%

Pierre September Weather Records 1893–2024
Highest temperature	108 °F	September 2, 1983
Lowest temperature	21 °F	September 22, 1995
Highest daily low	76 °F	September 1, 1937
Lowest daily high	42 °F	September 24, 1984
Hottest average high temperature	87.8 °F	1998
Coldest average high temperature	62.0 °F	1965
Most daily precipitation	2.7 inches	September 2, 1999
Most monthly precipitation	7.0 inches	1996
Most daily snow	0.2 inches	September 25, 1934
Most monthly snow	0.2 inches	1934

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	84.2	56.2	106	40
September 2	84.0	55.9	108	40
September 3	83.7	55.7	104	36
September 4	83.3	55.3	105	38
September 5	82.9	54.9	105	38
September 6	82.4	54.5	107	36
September 7	81.8	54.0	101	35
September 8	81.2	53.5	102	37
September 9	80.6	53.0	102	35
September 10	80.2	52.5	104	32
September 11	79.7	52.1	99	33
September 12	79.3	51.6	101	34
September 13	78.9	51.2	99	31
September 14	78.4	50.6	102	31
September 15	78.1	50.2	105	32
September 16	77.7	49.8	98	35
September 17	77.2	49.3	104	34
September 18	76.6	48.9	104	30
September 19	75.9	48.4	100	24
September 20	75.1	47.8	104	33
September 21	74.4	47.4	99	31
September 22	73.9	46.9	99	21
September 23	73.5	46.5	97	29
September 24	73.0	46.0	92	25
September 25	72.4	45.6	96	29
September 26	71.9	45.0	100	24
September 27	71.5	44.6	98	26
September 28	71.0	44.2	95	21
September 29	70.4	43.8	92	29
September 30	69.8	43.3	98	23

Weather Station Details

Years	Station	Coordinates
1934–2024	Pierre Regional Airport	location