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Weldon Spring September Weather

Averages and records for weather in Weldon Spring, Missouri in the month of September.

Typical Weldon Spring September Weather 1991–2020
Average daily high	80.6 °F
Average daily low	57.5 °F
Average monthly precipitation	3.4 inches
Average monthly snow	none
Daily chance of precipitation	23.5%
Daily chance of snow	0%

Weldon Spring September Weather Records 1957–2024
Highest temperature	102 °F	September 2, 1984
Lowest temperature	22 °F	September 25, 1989
Highest daily low	75 °F	September 2, 2011
Lowest daily high	52 °F	September 26, 2000
Hottest average high temperature	86.6 °F	1960
Coldest average high temperature	73.9 °F	1974
Most daily precipitation	4.0 inches	September 14, 2008
Most monthly precipitation	10.8 inches	1984
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	62.3	99	44
September 2	84.5	62.0	102	48
September 3	84.3	61.7	99	40
September 4	84.0	61.4	98	41
September 5	83.9	61.2	98	47
September 6	83.6	60.9	98	46
September 7	83.3	60.5	99	45
September 8	83.0	60.2	99	33
September 9	82.7	59.8	99	43
September 10	82.3	59.4	97	43
September 11	82.0	58.9	97	45
September 12	81.6	58.5	96	41
September 13	81.2	58.1	95	40
September 14	80.8	57.7	94	38
September 15	80.5	57.2	101	38
September 16	80.2	56.8	94	36
September 17	79.9	56.2	93	39
September 18	79.6	55.8	91	40
September 19	79.2	55.4	93	38
September 20	78.8	55.1	95	34
September 21	78.5	54.7	96	33
September 22	78.1	54.3	94	31
September 23	77.7	53.9	95	28
September 24	77.4	53.5	92	30
September 25	77.0	53.1	92	22
September 26	76.6	52.7	91	29
September 27	76.1	52.3	90	27
September 28	75.8	51.9	90	28
September 29	75.3	51.5	90	29
September 30	74.9	51.1	90	28

Weather Station Details

Years	Station	Coordinates
1957–2024	Weldon Spring NWS	location