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Portland October Weather

Averages and records for weather in Portland, Oregon in the month of October.

Typical Portland October Weather 1991–2020
Average daily high	63.9 °F
Average daily low	46.7 °F
Average monthly precipitation	3.4 inches
Average monthly snow	none
Daily chance of precipitation	43.5%
Daily chance of snow	0%

Portland October Weather Records 1871–2024
Highest temperature	92 °F	October 1, 1987
Lowest temperature	26 °F	October 29, 1971
Highest daily low	65 °F	October 4, 1932
Lowest daily high	35 °F	October 31, 1935
Hottest average high temperature	71.9 °F	2022
Coldest average high temperature	56.3 °F	1893
Most daily precipitation	2.9 inches	October 10, 1882
Most monthly precipitation	11.6 inches	1882
Most daily snow	0.6 inches	October 29, 1935
Most monthly snow	0.6 inches	1935

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
October 1	70.2	50.2	92	33
October 2	69.9	50.0	90	37
October 3	69.6	49.8	86	38
October 4	69.3	49.5	86	34
October 5	69.0	49.4	90	37
October 6	68.6	49.2	89	37
October 7	68.2	49.0	85	33
October 8	67.8	48.9	87	32
October 9	67.3	48.6	86	30
October 10	66.9	48.3	88	33
October 11	66.4	48.1	86	35
October 12	65.8	47.8	80	34
October 13	65.3	47.5	84	32
October 14	64.8	47.2	82	31
October 15	64.3	47.0	87	33
October 16	63.9	46.7	86	30
October 17	63.6	46.4	79	33
October 18	63.2	46.2	78	31
October 19	62.8	45.9	78	27
October 20	62.4	45.7	77	28
October 21	62.0	45.5	81	30
October 22	61.6	45.3	78	33
October 23	61.2	45.1	78	32
October 24	60.9	45.0	73	30
October 25	60.5	44.7	75	32
October 26	60.1	44.6	74	29
October 27	59.8	44.4	75	30
October 28	59.4	44.2	72	26
October 29	59.0	44.1	72	26
October 30	58.7	44.0	72	27
October 31	58.3	43.8	71	28

Weather Station Details

Years	Station	Coordinates
1939–2024	Portland International Airport	location
1871–1938	Portland RFC	location