Frost-date pages explain how to read station data as a regional anchor, then adjust for your microclimate.
Frost Dates & Planting Timing
What is a microclimate and how does it affect my frost dates?
A microclimate is a small area where local conditions (elevation, slope, vegetation, water, structures) produce temperatures different from the surrounding region. Microclimates routinely shift frost dates by 1-3 weeks within a few hundred yards. South-facing slopes warm faster; valley bottoms frost earlier; urban areas frost later.
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?
- How do I use frost probability tables for planting decisions?
- 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?
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