Frost Dates: First and last frost dates for ft scott, ks
The charts on this page show the probabilities of receiving a certain temperature on a certain day. Some examples that might help:
- You have a small 20% chance of getting 32° by October 15.
- There is a 50% chance of being hit by a 32° frost starting around October 24
- You have a 80% chance of seeing 32° by November 3
- Said another way, you have a 1 in 5 chance at making it to that day without a 32° night.
Temperature | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
---|---|---|---|---|---|---|---|---|---|
First 16° | Nov 17 | Nov 24 | Nov 29 | Dec 3 | Dec 7 | Dec 12 | Dec 16 | Dec 21 | Dec 28 |
First 20° | Nov 7 | Nov 14 | Nov 19 | Nov 23 | Nov 27 | Dec 1 | Dec 5 | Dec 10 | Dec 17 |
First 24° | Oct 28 | Nov 3 | Nov 8 | Nov 12 | Nov 16 | Nov 20 | Nov 24 | Nov 29 | Dec 5 |
First 28° | Oct 20 | Oct 26 | Oct 30 | Nov 3 | Nov 6 | Nov 10 | Nov 14 | Nov 18 | Nov 24 |
First 32° | Oct 10 | Oct 15 | Oct 18 | Oct 22 | Oct 24 | Oct 27 | Oct 30 | Nov 3 | Nov 8 |
First 36° | Sep 26 | Oct 1 | Oct 5 | Oct 8 | Oct 12 | Oct 15 | Oct 18 | Oct 22 | Oct 27 |
What's a safe temperature for tender plants? When the nightly temperature falls, frost can form, even above 32°, because the air is colder high above the ground and the frost can form up there and then fall down onto your garden and do some damage, even if it's 36° on the ground. So many factors come into play, including wind, concrete, houses, trees and other structures, etc etc etc. Because of all this, you might want to consider 36° as "the danger zone".
In your average springtime, you have a 90% chance that there will be no 36° nights by May 6. In other words, you can pretty much count on being safe from frost by that day. But we want to get those tomatoes in the ground as soon as possible, right? We see that there's still an 80% chance of 36° on April 11, so we don't dare plant that early. We wait a few days and by April 21 we are at the 50/50 point. At this point, we are close and we can start watching the weather forecast. If the upcoming week's forecast doesn't show below 40°, then it's probably okay to risk planting out your plants.
Temperature | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
---|---|---|---|---|---|---|---|---|---|
Last 16° | Mar 19 | Mar 11 | Mar 5 | Feb 28 | Feb 24 | Feb 19 | Feb 14 | Feb 8 | Jan 31 |
Last 20° | Mar 25 | Mar 17 | Mar 12 | Mar 7 | Mar 3 | Feb 27 | Feb 22 | Feb 17 | Feb 9 |
Last 24° | Apr 3 | Mar 28 | Mar 23 | Mar 20 | Mar 16 | Mar 13 | Mar 9 | Mar 5 | Feb 27 |
Last 28° | Apr 12 | Apr 7 | Apr 3 | Mar 31 | Mar 28 | Mar 26 | Mar 23 | Mar 19 | Mar 14 |
Last 32° | Apr 21 | Apr 16 | Apr 13 | Apr 10 | Apr 8 | Apr 5 | Apr 2 | Mar 30 | Mar 26 |
Last 36° | May 6 | May 1 | Apr 27 | Apr 24 | Apr 21 | Apr 18 | Apr 15 | Apr 11 | Apr 6 |
Data is provided by the NOAA National Centers for Environmental Information.