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Cottage Grove September Weather

Averages and records for weather in Cottage Grove, Oregon in the month of September.

Typical Cottage Grove September Weather 1991–2020
Average daily high	77.5 °F
Average daily low	46.7 °F
Average monthly precipitation	1.5 inches
Average monthly snow	none
Daily chance of precipitation	20.6%
Daily chance of snow	0%

Cottage Grove September Weather Records 1916–2024
Highest temperature	105 °F	September 5, 1944
Lowest temperature	24 °F	September 25, 1926
Highest daily low	64 °F	September 2, 2019
Lowest daily high	50 °F	September 24, 1948
Hottest average high temperature	84.3 °F	1974
Coldest average high temperature	68.0 °F	1925
Most daily precipitation	1.9 inches	September 29, 2013
Most monthly precipitation	7.0 inches	2013
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	80.9	48.9	96	31
September 2	80.6	48.8	104	34
September 3	80.3	48.7	97	33
September 4	80.0	48.6	96	35
September 5	79.7	48.5	105	34
September 6	79.4	48.3	94	34
September 7	79.3	48.0	102	32
September 8	79.1	47.9	94	34
September 9	79.0	47.7	96	30
September 10	78.7	47.6	100	32
September 11	78.4	47.5	95	30
September 12	78.2	47.2	96	28
September 13	77.8	47.1	95	26
September 14	77.7	46.9	97	25
September 15	77.6	46.8	97	29
September 16	77.3	46.7	93	29
September 17	76.9	46.5	93	25
September 18	76.5	46.3	91	25
September 19	76.1	46.1	92	28
September 20	75.7	45.9	92	30
September 21	75.3	45.8	94	31
September 22	75.0	45.6	94	31
September 23	74.7	45.4	95	30
September 24	74.4	45.2	96	28
September 25	74.0	45.1	94	24
September 26	73.5	44.9	89	26
September 27	73.0	44.7	94	28
September 28	72.4	44.5	94	30
September 29	72.0	44.3	91	26
September 30	71.6	44.1	90	27

Weather Station Details

Years	Station	Coordinates
1916–2024	Cottage Grove 2E	location