First and last freeze/frost dates for New Richmond, WI ,United States

First and last freeze/frost dates for:
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Each winter, on average, your risk of frost is from
October 6 through April 30.

Almost certainly, however, you will receive frost from October 18 through April 17.

You are almost guaranteed that you will not get frost from May 13 through September 24.

Your frost-free growing season is around 159 days.

Detailed station data* follows:

Forest Lake 5 Ne, MN (Chisago county):

Temperature10%20%30%40%50%60%70%80%90%
Spring 32° May 13 May 9 May 6 May 3 Apr 30 Apr 28 Apr 25 Apr 21 Apr 17
Spring 28° May 1 Apr 27 Apr 24 Apr 21 Apr 19 Apr 17 Apr 14 Apr 11 Apr 7
Spring 24° Apr 23 Apr 19 Apr 16 Apr 13 Apr 11 Apr 9 Apr 6 Apr 3 Mar 30
Fall 32° Sep 24 Sep 28 Oct 1 Oct 3 Oct 6 Oct 8 Oct 10 Oct 13 Oct 18
Fall 28° Oct 2 Oct 7 Oct 11 Oct 14 Oct 17 Oct 20 Oct 23 Oct 27 Nov 1
Fall 24° Oct 9 Oct 15 Oct 19 Oct 22 Oct 26 Oct 29 Nov 1 Nov 5 Nov 11

Stillwater 2 Sse, MN (Washington county):

Temperature10%20%30%40%50%60%70%80%90%
Spring 32° May 11 May 7 May 3 Apr 30 Apr 27 Apr 25 Apr 22 Apr 18 Apr 13
Spring 28° Apr 30 Apr 25 Apr 22 Apr 19 Apr 16 Apr 13 Apr 10 Apr 7 Apr 2
Spring 24° Apr 21 Apr 17 Apr 13 Apr 11 Apr 8 Apr 6 Apr 3 Mar 31 Mar 26
Fall 32° Sep 22 Sep 27 Sep 30 Oct 4 Oct 7 Oct 10 Oct 13 Oct 16 Oct 21
Fall 28° Sep 27 Oct 3 Oct 7 Oct 11 Oct 15 Oct 18 Oct 22 Oct 27 Nov 1
Fall 24° Oct 15 Oct 20 Oct 24 Oct 27 Oct 30 Nov 1 Nov 4 Nov 7 Nov 12

St Croix Falls, WI (Polk county):

Temperature10%20%30%40%50%60%70%80%90%
Spring 32° May 22 May 17 May 14 May 11 May 9 May 6 May 3 Apr 30 Apr 26
Spring 28° May 12 May 8 May 4 May 1 Apr 28 Apr 25 Apr 22 Apr 19 Apr 14
Spring 24° Apr 27 Apr 23 Apr 19 Apr 17 Apr 14 Apr 11 Apr 9 Apr 5 Apr 1
Fall 32° Sep 18 Sep 22 Sep 25 Sep 27 Sep 30 Oct 2 Oct 4 Oct 7 Oct 11
Fall 28° Sep 25 Oct 1 Oct 5 Oct 8 Oct 11 Oct 14 Oct 18 Oct 22 Oct 27
Fall 24° Oct 9 Oct 13 Oct 17 Oct 20 Oct 23 Oct 25 Oct 28 Oct 31 Nov 5

* 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.

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