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I analyzed 3 years of Central Park rain data to see if the feeling was real.
It was https://valueaddvc.com/nyrain
27 of 38 summer weekends had measurable rain.
That’s 71%.
Friday was the rainiest day of the week, with rain on 43.6% of summer Fridays. Basically worse than a coin flip for your evening plans.
Sunday had the highest rainfall volume of any day, averaging 0.17 inches. It may not rain every Sunday, but when it does, it commits.
Thursday was objectively the best day to be outside in NYC: lowest precipitation, clearest skies, least weekend-related misery.
The wildest stat:
70.8% of rainy Sundays were preceded by a gross Friday or Saturday.
The weekend basically telegraphs its own downfall.
I built a full dashboard using NWS Central Park data with every weekend tracked and every raindrop counted
It’s all here https://valueaddvc.com/nyrain
NYC Rain Dashboard — Live & Historical Rainfall DataLive and historical rainfall data for New York City by borough. Free interactive dashboard. Trace Cohen© 2026 Trace Cohen's Vertical Ai Investor NewsletterTerms of Service