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Longview September Weather

Averages and records for weather in Longview, Washington in the month of September.

Typical Longview September Weather 1991–2020
Average daily high	75.1 °F
Average daily low	50.2 °F
Average monthly precipitation	1.8 inches
Average monthly snow	none
Daily chance of precipitation	28.6%
Daily chance of snow	0%

Longview September Weather Records 1925–2024
Highest temperature	104 °F	September 5, 1944
Lowest temperature	29 °F	September 26, 1934
Highest daily low	65 °F	September 1, 1952
Lowest daily high	50 °F	September 27, 1945
Hottest average high temperature	79.7 °F	1957
Coldest average high temperature	66.3 °F	1941
Most daily precipitation	2.5 inches	September 14, 1935
Most monthly precipitation	5.0 inches	1927
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	77.9	52.1	99	39
September 2	77.7	52.0	96	39
September 3	77.4	51.9	100	37
September 4	77.1	51.8	98	41
September 5	76.9	51.7	104	40
September 6	76.7	51.6	96	34
September 7	76.5	51.4	95	35
September 8	76.3	51.3	100	36
September 9	76.2	51.1	91	38
September 10	76.0	51.0	98	36
September 11	75.8	50.9	91	32
September 12	75.5	50.9	90	37
September 13	75.4	50.7	93	34
September 14	75.4	50.5	94	34
September 15	75.3	50.3	93	34
September 16	75.0	50.2	97	36
September 17	74.7	50.2	89	33
September 18	74.3	50.1	87	33
September 19	73.9	49.9	89	30
September 20	73.5	49.7	93	37
September 21	73.2	49.6	95	33
September 22	72.9	49.4	94	34
September 23	72.7	49.2	94	34
September 24	72.4	49.1	93	29
September 25	72.0	49.0	90	30
September 26	71.6	48.8	91	29
September 27	71.2	48.5	88	32
September 28	70.8	48.3	90	32
September 29	70.4	48.2	86	32
September 30	70.1	48.0	87	32

Weather Station Details

Years	Station	Coordinates
1925–2024	Longview	location