Frost Dates: First and last frost dates for Denver-stapelton, CO

In the Spring
Temperature 10% 20% 30% 40% 50% 60% 70% 80% 90%
Last 16° Apr 9 Apr 1 Mar 27 Mar 22 Mar 18 Mar 13 Mar 9 Mar 3 Feb 24
Last 20° Apr 15 Apr 9 Apr 5 Apr 2 Mar 30 Mar 27 Mar 23 Mar 20 Mar 14
Last 24° Apr 27 Apr 21 Apr 16 Apr 12 Apr 9 Apr 5 Apr 2 Mar 28 Mar 22
Last 28° May 7 May 1 Apr 27 Apr 23 Apr 20 Apr 17 Apr 13 Apr 9 Apr 3
Last 32° May 13 May 9 May 5 May 2 Apr 30 Apr 27 Apr 24 Apr 21 Apr 16
Last 36° May 27 May 22 May 18 May 15 May 12 May 9 May 6 May 2 Apr 27

In the Fall
Temperature 10% 20% 30% 40% 50% 60% 70% 80% 90%
First 16° Oct 30 Nov 4 Nov 8 Nov 11 Nov 14 Nov 16 Nov 19 Nov 23 Nov 28
First 20° Oct 17 Oct 23 Oct 27 Oct 31 Nov 3 Nov 6 Nov 10 Nov 14 Nov 20
First 24° Oct 10 Oct 16 Oct 20 Oct 24 Oct 28 Oct 31 Nov 4 Nov 8 Nov 14
First 28° Sep 28 Oct 4 Oct 8 Oct 11 Oct 15 Oct 18 Oct 22 Oct 26 Nov 1
First 32° Sep 18 Sep 24 Sep 28 Oct 1 Oct 4 Oct 8 Oct 11 Oct 15 Oct 21
First 36° Sep 15 Sep 19 Sep 22 Sep 24 Sep 27 Sep 29 Oct 1 Oct 4 Oct 9

Now that you know your frost dates, use our Garden Planting Calendar for Denver-stapelton, CO 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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