First and last freeze/frost dates for Fort Bragg, California, United States

First and last freeze/frost dates for:
  Your results  
Each winter, on average, your risk of frost is from
December 7 through February 19.

Almost certainly, however, you will receive frost from January 11 through December 24.

You are almost guaranteed that you will not get frost from April 12 through November 4.

Your frost-free growing season is around 291 days.

Detailed station data* follows:

Ft Bragg 1 E, CA (Mendocino county):

Temperature10%20%30%40%50%60%70%80%90%
Spring 32° Apr 12 Mar 25 Mar 12 Mar 1 Feb 19 Feb 9 Jan 28 Jan 15 Dec 24
Spring 28° Feb 26 Jan 29 Jan 3 Nov 22
Spring 24° Dec 14
Fall 32° Nov 4 Nov 15 Nov 23 Nov 29 Dec 7 Dec 13 Dec 20 Dec 29 Jan 11
Fall 28° Dec 20 Jan 4 Jan 18 Feb 8
Fall 24° Jan 16

Covelo, CA (Mendocino county):

Temperature10%20%30%40%50%60%70%80%90%
Spring 32° May 24 May 17 May 11 May 7 May 2 Apr 28 Apr 23 Apr 18 Apr 10
Spring 28° May 1 Apr 21 Apr 14 Apr 8 Apr 2 Mar 28 Mar 22 Mar 15 Mar 5
Spring 24° Mar 11 Mar 3 Feb 26 Feb 21 Feb 17 Feb 12 Feb 8 Feb 2 Jan 25
Fall 32° Oct 6 Oct 12 Oct 15 Oct 18 Oct 21 Oct 24 Oct 27 Oct 31 Nov 4
Fall 28° Oct 18 Oct 23 Oct 27 Oct 31 Nov 2 Nov 5 Nov 8 Nov 12 Nov 17
Fall 24° Oct 31 Nov 7 Nov 13 Nov 18 Nov 22 Nov 26 Dec 2 Dec 8 Dec 16

Willits 1 Ne, CA (Mendocino county):

Temperature10%20%30%40%50%60%70%80%90%
Spring 32° Jun 5 May 27 May 21 May 16 May 11 May 6 May 1 Apr 25 Apr 16
Spring 28° May 10 Apr 26 Apr 17 Apr 9 Apr 1 Mar 24 Mar 16 Mar 6 Feb 21
Spring 24° Mar 16 Mar 1 Feb 18 Feb 9 Jan 31 Jan 22 Jan 12 Dec 31 Dec 13
Fall 32° Sep 21 Sep 27 Oct 2 Oct 6 Oct 9 Oct 13 Oct 17 Oct 21 Oct 28
Fall 28° Oct 4 Oct 14 Oct 21 Oct 27 Oct 31 Nov 6 Nov 12 Nov 19 Nov 29
Fall 24° Oct 28 Nov 7 Nov 15 Nov 22 Nov 28 Dec 6 Dec 13 Dec 22 Jan 4

* This station data is available courtesy the National Climatic Data Center.

For each weather station, you will see a temperature along with tables of data organized into percentage columns. The percentage column tells you the probability that you will experience that row's temperature on or near that date. Here are two examples to help you determine your probable last frost and first freeze dates.

Example 1 (Last Frost). In the Spring 32° row, if you have "Apr 15" under the 50% column, that means you have a 50% chance of seeing frost on or before April 15th.

Example 2 (First Freeze). In the Fall 24° row, if you have "Dec 1" under the 90% column, that means you have a 90% chance of seeing 24 degrees on or after December 1st.

Empty cells indicate you have a less than 10% chance of ever seeing that temperature.

BACK TO TOP