Seattle, United States — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. The standouts: July, June.
warm
mild, rainy
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mild, very wet
cool, very wet
cool, very wet
cool, very wet
chilly, very wet
chilly, very wet
chilly, very wet
warm, rainy
mild, rainy
cool, very wet
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.
