Frost Dates: First and last frost dates for Washgtn Dulles Intl Ap, VA

In the Fall
Temperature 10% 20% 30% 40% 50% 60% 70% 80% 90%
First 16° Nov 18 Nov 25 Dec 1 Dec 6 Dec 10 Dec 15 Dec 19 Dec 25 Jan 2
First 20° Nov 4 Nov 11 Nov 16 Nov 20 Nov 24 Nov 28 Dec 2 Dec 7 Dec 14
First 24° Oct 24 Oct 29 Nov 1 Nov 4 Nov 7 Nov 10 Nov 13 Nov 17 Nov 22
First 28° Oct 11 Oct 16 Oct 20 Oct 23 Oct 26 Oct 29 Nov 1 Nov 5 Nov 10
First 32° Sep 29 Oct 4 Oct 7 Oct 10 Oct 13 Oct 16 Oct 18 Oct 22 Oct 26
First 36° Sep 22 Sep 26 Sep 29 Oct 2 Oct 5 Oct 7 Oct 10 Oct 13 Oct 17

In the Spring
Temperature 10% 20% 30% 40% 50% 60% 70% 80% 90%
Last 16° Mar 19 Mar 12 Mar 7 Mar 2 Feb 26 Feb 22 Feb 18 Feb 13 Feb 6
Last 20° Apr 6 Mar 31 Mar 26 Mar 22 Mar 18 Mar 14 Mar 10 Mar 5 Feb 26
Last 24° Apr 12 Apr 7 Apr 4 Apr 1 Mar 30 Mar 27 Mar 24 Mar 21 Mar 16
Last 28° Apr 20 Apr 16 Apr 13 Apr 10 Apr 7 Apr 5 Apr 2 Mar 30 Mar 26
Last 32° May 9 May 4 Apr 29 Apr 26 Apr 23 Apr 19 Apr 16 Apr 12 Apr 6
Last 36° May 21 May 16 May 13 May 10 May 7 May 5 May 2 Apr 28 Apr 24

Now that you know your frost dates, use our Garden Planting Calendar for Washgtn Dulles Intl Ap, VA 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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