Issaquah Weather History Washington, 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.
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Fri 17 Apr, 2026 Weather in Issaquah

Sunrise: 06:15 AM Sunset: 08:01 PM	Moonrise: 06:00 AM Moonset: 09:00 PM	Max: 13.8 °c	Min: 5.7 °c	Avg: 9.0 °c	Precip: 0.00 mm	Max Wind: 7.2 kph

	Fri 17 0:00 am	Fri 17 3:00 am	Fri 17 6:00 am	Fri 17 9:00 am	Fri 17 12:00 pm	Fri 17 3:00 pm	Fri 17 6:00 pm	Fri 17 9:00 pm
Icon
Temp	6.3°c	5.9°c	5.7°c	7.5°c	10.6°c	13.2°c	12.4°c	10.0°c
Wind	7.2 kmph	4.3 kmph	3.6 kmph	4.0 kmph	0.4 kmph	4.3 kmph	4.7 kmph	5.8 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	100%	88%	67%	44%	20%	6%	10%	59%
Humidity	78%	84%	84%	73%	59%	53%	54%	61%
Pressure	1026 mb	1027 mb	1027 mb	1028 mb	1026 mb	1024 mb	1023 mb	1022 mb

Issaquah Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	7°C / 45°F	1°C / 34°F	4°C / 39°F	114 hours	190.09 mm / 7.48 In	13 days	1019 mb / 31 In
February	8°C / 46°F	1°C / 34°F	4°C / 39°F	89 hours	139.07 mm / 5.48 In	12 days	1018 mb / 31 In
March	11°C / 51°F	2°C / 36°F	6°C / 43°F	96 hours	177.81 mm / 7.00 In	13 days	1016 mb / 30 In
April	14°C / 57°F	4°C / 39°F	9°C / 48°F	113 hours	117.04 mm / 4.61 In	10 days	1017 mb / 31 In
May	18°C / 65°F	7°C / 45°F	13°C / 55°F	161 hours	83.73 mm / 3.30 In	8 days	1017 mb / 30 In
June	21°C / 70°F	10°C / 49°F	15°C / 60°F	179 hours	67.55 mm / 2.66 In	6 days	1016 mb / 30 In
July	26°C / 78°F	12°C / 54°F	19°C / 66°F	256 hours	20.00 mm / 0.79 In	2 days	1017 mb / 30 In
August	26°C / 78°F	13°C / 56°F	19°C / 66°F	260 hours	34.88 mm / 1.37 In	3 days	1016 mb / 30 In
September	22°C / 71°F	11°C / 51°F	16°C / 60°F	201 hours	76.72 mm / 3.02 In	6 days	1016 mb / 30 In
October	15°C / 60°F	7°C / 45°F	11°C / 51°F	157 hours	158.18 mm / 6.23 In	10 days	1017 mb / 31 In
November	10°C / 50°F	4°C / 39°F	6°C / 43°F	102 hours	228.90 mm / 9.01 In	13 days	1018 mb / 31 In
December	7°C / 44°F	1°C / 34°F	4°C / 39°F	98 hours	219.49 mm / 8.64 In	14 days	1018 mb / 31 In

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