Frost-date pages on every county show all five risk tiers. Pair with state crop calendars for crop-specific windows.
Frost Dates & Planting Timing
How do I use frost probability tables for planting decisions?
Pick a risk tier based on the value of your crop and the protection available. High-value frost-sensitive transplants without protection: use the conservative bound (9-of-10 years frost-free). Direct-seed warm-season crops: use the median. With row cover or season-extension tools: use the aggressive bound.
More from Frost Dates & Planting Timing
- When is the last frost date in my area?
- What is the difference between a hardiness zone and a frost date?
- What does 50% frost probability mean?
- When is it safe to plant tomatoes outside?
- What is a killing frost vs. a light frost?
- Can I plant earlier using row cover?
- How do I protect plants from a late spring frost?
- What crops can survive a frost?
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