Each winter, on average, your risk of frost is from October 3 through May 6.
Almost certainly, however, you will receive frost from October 15 through April 22.
You are almost guaranteed that you will not get frost from May 19 through September 22.
Your frost-free growing season is around 150 days.
Temperature 10% 20% 30% 40% 50% 60% 70% 80% 90%
Spring 32° May 19 May 15 May 11 May 8 May 6 May 3 Apr 30 Apr 27 Apr 22
Spring 28° May 3 Apr 28 Apr 25 Apr 22 Apr 19 Apr 17 Apr 14 Apr 11 Apr 6
Spring 24° Apr 26 Apr 21 Apr 18 Apr 15 Apr 12 Apr 9 Apr 6 Apr 3 Mar 29
Fall 32° Sep 22 Sep 26 Sep 29 Oct 1 Oct 3 Oct 6 Oct 8 Oct 11 Oct 15
Fall 28° Sep 27 Oct 2 Oct 6 Oct 10 Oct 13 Oct 16 Oct 20 Oct 24 Oct 30
Fall 24° Oct 11 Oct 17 Oct 21 Oct 25 Oct 29 Oct 31 Nov 4 Nov 8 Nov 14