Frost Dates: First and last frost dates for maysville sewage plt, ky
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 12.
- There is a 50% chance of being hit by a 32° frost starting around October 20
- You have a 80% chance of seeing 32° by October 29
- 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 19 | Nov 26 | Dec 1 | Dec 6 | Dec 10 | Dec 13 | Dec 18 | Dec 23 | Dec 30 |
First 20° | Nov 6 | Nov 12 | Nov 17 | Nov 21 | Nov 24 | Nov 28 | Dec 2 | Dec 6 | Dec 12 |
First 24° | Oct 28 | Nov 3 | Nov 7 | Nov 11 | Nov 14 | Nov 18 | Nov 21 | Nov 26 | Dec 2 |
First 28° | Oct 19 | Oct 24 | Oct 28 | Oct 31 | Nov 3 | Nov 6 | Nov 9 | Nov 12 | Nov 17 |
First 32° | Oct 7 | Oct 12 | Oct 15 | Oct 18 | Oct 20 | Oct 23 | Oct 26 | Oct 29 | Nov 3 |
First 36° | Sep 26 | Oct 1 | Oct 4 | Oct 7 | Oct 10 | Oct 12 | Oct 15 | Oct 18 | Oct 23 |
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 15. 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 24, so we don't dare plant that early. We wait a few days and by May 2 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 22 | Mar 14 | Mar 9 | Mar 4 | Feb 27 | Feb 23 | Feb 18 | Feb 12 | Feb 4 |
Last 20° | Apr 1 | Mar 25 | Mar 19 | Mar 15 | Mar 11 | Mar 7 | Mar 2 | Feb 25 | Feb 18 |
Last 24° | Apr 14 | Apr 9 | Apr 5 | Apr 2 | Mar 30 | Mar 27 | Mar 24 | Mar 20 | Mar 15 |
Last 28° | Apr 22 | Apr 18 | Apr 14 | Apr 12 | Apr 9 | Apr 6 | Apr 4 | Mar 31 | Mar 27 |
Last 32° | May 7 | May 2 | Apr 29 | Apr 26 | Apr 23 | Apr 20 | Apr 17 | Apr 13 | Apr 8 |
Last 36° | May 15 | May 11 | May 8 | May 5 | May 2 | Apr 30 | Apr 27 | Apr 24 | Apr 19 |
Data is provided by the NOAA National Centers for Environmental Information.