Best time to travel to Snohomish County

Discover the ideal time to visit Snohomish County

Planning a trip to Snohomish County? Based on weather conditions, the best time to visit is during July, August and September, see the table bellow for more details.

On this page, you will find detailed climate data, graphs, and insights about Snohomish County to help you plan your trip and choose the most optimal time to visit.

Snohomish County Monthly Climate Overview

Click on a month for in-depth weather statistics and trends

Month	Temperatures	Total Rain	Total Snow	Rainy Days	Snow Days	Dry Days
January	6°/2°	222 mm	2 cm	10 days	0 days	21 days
February	6°/2°	221 mm	50 cm	8 days	2 days	18 days
March	9°/4°	367 mm	8 cm	15 days	1 days	15 days
April	12°/5°	91 mm	0 cm	10 days	0 days	20 days
May	16°/7°	83 mm	0 cm	11 days	0 days	20 days
June	19°/10°	63 mm	0 cm	8 days	0 days	22 days
July	23°/12°	15 mm	0 cm	3 days	0 days	28 days
August	23°/12°	132 mm	0 cm	5 days	0 days	26 days
September	19°/11°	80 mm	0 cm	6 days	0 days	24 days
October	14°/8°	177 mm	0 cm	10 days	0 days	21 days
November	9°/6°	421 mm	0 cm	16 days	0 days	14 days
December	8°/4°	393 mm	5 cm	19 days	1 days	11 days