Observed arrival · 2026-10-16
Frost Odds, Down to the ZIP Code
A U.S. ZIP-code lookup for estimated last spring and first fall freezes, with USDA hardiness zones.
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●Pro
◎Niche
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- For
- U.S. gardeners planning around spring and fall freezes
- Worth noticing
- It distinguishes the 32°F frost threshold from 28°F hard freezes and a cautious 36°F margin.
Field notes
The page gives examples of how to interpret the probability ranges: a 10% chance of a spring freeze after a date means that, in about one year out of ten, the last 32°F night came later. It also distinguishes official air-temperature thresholds from a cautious margin for possible frost on plants. The site identifies itself as independent and says it is not affiliated with NOAA, USDA, or Oregon State University.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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