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First and last freeze/frost dates for Lawrence, KS 66049, USA

First and last freeze/frost dates for:
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Each winter, on average, your risk of frost is from October 11 through April 19.

Almost certainly, however, you will receive frost from October 27 through April 6.

You are almost guaranteed that you will not get frost from May 3 through September 24.

Your frost-free growing season is around 175 days.

Detailed station data* follows:

Topeka Wsfo Ap, KS (Shawnee county):

Temperature10%20%30%40%50%60%70%80%90%
Spring 32° May 3 Apr 28 Apr 25 Apr 22 Apr 19 Apr 17 Apr 14 Apr 10 Apr 6
Spring 28° Apr 16 Apr 12 Apr 9 Apr 6 Apr 3 Apr 1 Mar 29 Mar 26 Mar 21
Spring 24° Apr 5 Mar 31 Mar 27 Mar 24 Mar 21 Mar 18 Mar 15 Mar 11 Mar 6
Fall 32° Sep 24 Sep 30 Oct 4 Oct 7 Oct 11 Oct 14 Oct 17 Oct 21 Oct 27
Fall 28° Oct 14 Oct 20 Oct 24 Oct 27 Oct 30 Nov 1 Nov 4 Nov 8 Nov 14
Fall 24° Oct 22 Oct 29 Nov 1 Nov 5 Nov 9 Nov 12 Nov 16 Nov 21 Nov 27

Perry Lake, KS (Jefferson county):

Temperature10%20%30%40%50%60%70%80%90%
Spring 32° Apr 28 Apr 23 Apr 20 Apr 17 Apr 14 Apr 11 Apr 8 Apr 4 Mar 30
Spring 28° Apr 14 Apr 10 Apr 7 Apr 5 Apr 2 Mar 31 Mar 29 Mar 26 Mar 22
Spring 24° Apr 12 Apr 6 Apr 1 Mar 28 Mar 25 Mar 21 Mar 17 Mar 13 Mar 7
Fall 32° Sep 29 Oct 4 Oct 8 Oct 11 Oct 14 Oct 17 Oct 21 Oct 24 Oct 30
Fall 28° Oct 11 Oct 18 Oct 22 Oct 26 Oct 29 Nov 1 Nov 5 Nov 9 Nov 15
Fall 24° Oct 22 Oct 28 Nov 1 Nov 4 Nov 8 Nov 11 Nov 15 Nov 20 Nov 26

Oskaloosa, KS (Jefferson county):

Temperature10%20%30%40%50%60%70%80%90%
Spring 32° Apr 30 Apr 24 Apr 20 Apr 17 Apr 14 Apr 11 Apr 8 Apr 4 Mar 29
Spring 28° Apr 20 Apr 15 Apr 12 Apr 8 Apr 6 Apr 3 Mar 31 Mar 27 Mar 22
Spring 24° Apr 11 Apr 6 Apr 1 Mar 29 Mar 26 Mar 23 Mar 19 Mar 15 Mar 9
Fall 32° Sep 30 Oct 5 Oct 9 Oct 12 Oct 15 Oct 18 Oct 21 Oct 25 Oct 30
Fall 28° Oct 14 Oct 20 Oct 24 Oct 27 Oct 31 Nov 2 Nov 5 Nov 9 Nov 15
Fall 24° Oct 20 Oct 27 Oct 31 Nov 4 Nov 8 Nov 12 Nov 16 Nov 21 Nov 27

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

For each station, you will see a temperature along with a pile of percentage columns. Here's how it works: The percent column tells you the probability that you will experience that row's temperature on or before that date.

So, for example, in the Spring 32° row, if you have "Apr 15" under the 50% column, that means that you have a 50% chance of seeing frost on or before April 15th.

Another example. Say in the Fall 24° row, under 90%, you have Dec 1, then that means that you have a 90% chance of seeing 24 degrees on or before December 1st.

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


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