Frost Dates: First and last frost dates for Saint Louis, Missouri

In the Spring
Temperature 10% 20% 30% 40% 50% 60% 70% 80% 90%
Last 16° Mar 16 Mar 8 Mar 3 Feb 27 Feb 22 Feb 18 Feb 14 Feb 8 Feb 1
Last 20° Mar 28 Mar 22 Mar 18 Mar 14 Mar 11 Mar 7 Mar 4 Feb 27 Feb 21
Last 24° Apr 7 Apr 2 Mar 28 Mar 25 Mar 22 Mar 18 Mar 15 Mar 11 Mar 5
Last 28° Apr 16 Apr 11 Apr 7 Apr 4 Apr 1 Mar 29 Mar 26 Mar 22 Mar 17
Last 32° Apr 26 Apr 22 Apr 18 Apr 15 Apr 13 Apr 10 Apr 7 Apr 3 Mar 30
Last 36° May 11 May 5 Apr 30 Apr 26 Apr 23 Apr 19 Apr 16 Apr 11 Apr 5

In the Fall
Temperature 10% 20% 30% 40% 50% 60% 70% 80% 90%
First 16° Nov 13 Nov 20 Nov 25 Nov 29 Dec 3 Dec 7 Dec 11 Dec 16 Dec 23
First 20° Nov 4 Nov 11 Nov 15 Nov 19 Nov 23 Nov 27 Dec 1 Dec 6 Dec 12
First 24° Oct 26 Nov 2 Nov 7 Nov 11 Nov 14 Nov 18 Nov 22 Nov 27 Dec 3
First 28° Oct 14 Oct 20 Oct 25 Oct 28 Nov 1 Nov 5 Nov 9 Nov 13 Nov 20
First 32° Sep 29 Oct 5 Oct 9 Oct 13 Oct 16 Oct 20 Oct 23 Oct 27 Nov 2
First 36° Sep 22 Sep 27 Oct 1 Oct 4 Oct 7 Oct 10 Oct 13 Oct 17 Oct 22

Now that you know your frost dates, use our Garden Planting Calendar for Saint Louis, Missouri 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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