Climate & Weather in Kirkland

Kirkland carries a genuine Pacific Northwest marine climate (Koppen Csb/Cfb) -- mild, wet winters and dry, mild summers -- nothing like the desert or continental climates covered elsewhere in this project's broader dataset.

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A genuine marine climate, shared with the broader Eastside

Kirkland shares Bellevue's and Redmond's genuine temperate marine climate as a fellow Eastside King County city on the shore of Lake Washington: winters average highs of 40-50°F with lows of 30-36°F, and summers average highs of 75-82°F with lows of 55-60°F.

A real, genuine seasonal-affective-disorder consideration

As documented for the broader Eastside in bellevue-wa.js, Kirkland's mild but genuinely gray, wet winters carry real seasonal-affective-disorder relevance for anyone relocating from a sunnier climate -- disclosed honestly rather than treated as a punchline.

Dry, mild summers are the real payoff

July and August run genuinely dry and mild -- Kirkland's real summer season, with lake access at the downtown waterfront a genuine, defining local amenity during the driest months.

No independently confirmed Kirkland-specific precipitation figure

This record uses 35 inches of annual precipitation, consistent with the broader Eastside range disclosed in bellevue-wa.js -- disclosed honestly as an estimate rather than an independently sourced Kirkland-specific figure.

Key takeaways

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Last reviewed: 2026-08-25. Independent research; not financial, tax, or legal advice -- confirm current figures with a local professional before making a decision.