Lake Oswego Weather History Oregon, United States of America

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
Yearly Monthly Averages
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Fri 04 Sep, 2026 Weather in Lake Oswego

Sunrise: 06:35 AM Sunset: 07:43 PM	Moonrise: 11:19 PM Moonset: 03:17 PM	Max: 18.9 °c	Min: 12.0 °c	Avg: 15.0 °c	Precip: 28.96 mm	Max Wind: 11.5 kph

	Fri 04 0:00 am	Fri 04 3:00 am	Fri 04 6:00 am	Fri 04 9:00 am	Fri 04 12:00 pm	Fri 04 3:00 pm	Fri 04 6:00 pm	Fri 04 9:00 pm
Icon
Temp	12.5°c	12.2°c	12.5°c	14.3°c	16.9°c	18.8°c	18.6°c	13.9°c
Wind	4.3 kmph	2.2 kmph	5.4 kmph	4.7 kmph	4.0 kmph	4.3 kmph	8.3 kmph	2.2 kmph
Precip	0.61 mm	0.00 mm	1.22 mm	1.67 mm	1.72 mm	1.73 mm	1.78 mm	0.01 mm
Cloud	100%	45%	100%	100%	76%	100%	78%	82%
Humidity	93%	87%	91%	82%	75%	66%	64%	79%
Pressure	1011 mb	1011 mb	1012 mb	1013 mb	1014 mb	1013 mb	1014 mb	1015 mb

Lake Oswego Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	8°C / 47°F	2°C / 36°F	5°C / 41°F	115 hours	168.55 mm / 6.64 In	12 days	1020 mb / 31 In
February	9°C / 48°F	2°C / 36°F	5°C / 42°F	87 hours	154.57 mm / 6.09 In	11 days	1019 mb / 31 In
March	12°C / 53°F	4°C / 39°F	7°C / 45°F	96 hours	161.62 mm / 6.36 In	13 days	1017 mb / 31 In
April	15°C / 59°F	5°C / 42°F	10°C / 50°F	114 hours	114.69 mm / 4.52 In	10 days	1018 mb / 31 In
May	19°C / 67°F	8°C / 47°F	14°C / 57°F	156 hours	64.81 mm / 2.55 In	6 days	1017 mb / 31 In
June	23°C / 74°F	11°C / 52°F	17°C / 63°F	184 hours	39.54 mm / 1.56 In	4 days	1016 mb / 30 In
July	28°C / 83°F	14°C / 57°F	21°C / 70°F	272 hours	5.47 mm / 0.22 In	1 days	1017 mb / 31 In
August	29°C / 84°F	15°C / 59°F	21°C / 71°F	269 hours	11.57 mm / 0.46 In	1 days	1016 mb / 30 In
September	25°C / 76°F	13°C / 55°F	18°C / 65°F	224 hours	53.49 mm / 2.11 In	4 days	1016 mb / 30 In
October	17°C / 63°F	9°C / 48°F	13°C / 55°F	170 hours	122.59 mm / 4.83 In	9 days	1017 mb / 31 In
November	11°C / 52°F	5°C / 41°F	8°C / 46°F	112 hours	185.40 mm / 7.30 In	13 days	1018 mb / 31 In
December	8°C / 46°F	2°C / 36°F	5°C / 41°F	103 hours	240.70 mm / 9.48 In	13 days	1019 mb / 31 In

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