Observed arrival · 2026-08-28
FrostDateCheck, Where Frost Stops Guessing
A free ZIP-code lookup for typical spring and fall frost dates, growing-season length, and frost-risk ranges across the United States.
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Field notes
The lookup distinguishes three historical risk points: early, typical, and late, with the latter two tied to stated 50% and 90% frost probabilities. Location pages are described as combining the nearest reporting station's NOAA frost records with a USDA Plant Hardiness Zone and a national growing-season ranking. The homepage also exposes the dataset's extremes, including a 13-day season in Stanley, Idaho, and a 365-day season in Indian Creek, Florida.
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
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●ProPolished or operationally mature
◎NicheUnusually specific use
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