United States Frost Dates Map

Last Frost – Simplified by Zones

Zone 3 May 1 to May 31

Zone 4 May 1 to May 30

Zone 5 Mar 30 to Apr 30

Zone 6 Mar 30 to Apr 30

Zone 7 Mar 30 to Apr 30

Zone 8 Feb 28 – Mar 30

Zone 9 Jan 30 – Feb 28

Zone 10 Jan 30