Frost Dates: First and last frost dates for Natl Arboretum Dc, MD

In the Fall
Temperature 10% 20% 30% 40% 50% 60% 70% 80% 90%
First 16° Nov 27 Dec 7 Dec 13 Dec 19 Dec 25 Dec 30 Jan 5 Jan 12 Jan 21
First 20° Nov 23 Nov 29 Dec 4 Dec 8 Dec 11 Dec 15 Dec 19 Dec 23 Dec 30
First 24° Nov 5 Nov 12 Nov 17 Nov 21 Nov 25 Nov 29 Dec 3 Dec 8 Dec 15
First 28° Oct 19 Oct 25 Oct 30 Nov 2 Nov 6 Nov 10 Nov 14 Nov 18 Nov 25
First 32° Oct 12 Oct 17 Oct 21 Oct 23 Oct 26 Oct 29 Nov 1 Nov 4 Nov 9
First 36° Sep 30 Oct 5 Oct 9 Oct 12 Oct 15 Oct 17 Oct 20 Oct 24 Oct 29

In the Spring
Temperature 10% 20% 30% 40% 50% 60% 70% 80% 90%
Last 16° Mar 11 Mar 4 Feb 26 Feb 22 Feb 18 Feb 13 Feb 9 Feb 3 Jan 27
Last 20° Mar 23 Mar 16 Mar 11 Mar 6 Mar 2 Feb 26 Feb 22 Feb 17 Feb 10
Last 24° Mar 28 Mar 24 Mar 21 Mar 18 Mar 16 Mar 14 Mar 11 Mar 8 Mar 4
Last 28° Apr 11 Apr 6 Apr 3 Mar 31 Mar 28 Mar 26 Mar 23 Mar 20 Mar 15
Last 32° Apr 20 Apr 16 Apr 13 Apr 11 Apr 9 Apr 6 Apr 4 Apr 1 Mar 28
Last 36° May 7 May 3 Apr 30 Apr 27 Apr 24 Apr 22 Apr 19 Apr 16 Apr 11

Now that you know your frost dates, use our Garden Planting Calendar for Natl Arboretum Dc, MD to know when to sow and transplant your various vegetable plants!

Data is provided by the NOAA National Centers for Environmental Information. Photography by Garden.org member TBGDN.

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