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Frost Date Calculator
Estimate first & last frost dates for your zone
USDA Hardiness Zone
Zone 3 (-40 to -30°F)
Zone 4 (-30 to -20°F)
Zone 5 (-20 to -10°F)
Zone 6 (-10 to 0°F)
Zone 7 (0 to 10°F)
Zone 8 (10 to 20°F)
Zone 9 (20 to 30°F)
Zone 10 (30 to 40°F)
Zone 11 (40 to 50°F)
Zone 12 (50 to 60°F)
Zone 13 (60°F+)
Last Spring Frost
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First Fall Frost
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Growing Season Length
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Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Note:
These are average estimates based on USDA zone data. Actual frost dates vary by location, elevation, and microclimate. Check your local agricultural extension for precise dates.