Frost Dates: First and last frost dates for eufaula wildlife ref, al
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 April 25. 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 3, so we don't dare plant that early. We wait a few days and by April 12 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° | Feb 10 | Feb 2 | Jan 26 | Jan 20 | Jan 12 | Dec 30 | -- | -- | -- |
Last 20° | Mar 1 | Feb 21 | Feb 15 | Feb 10 | Feb 5 | Jan 31 | Jan 26 | Jan 19 | Jan 6 |
Last 24° | Mar 10 | Mar 3 | Feb 26 | Feb 21 | Feb 17 | Feb 13 | Feb 9 | Feb 4 | Jan 28 |
Last 28° | Mar 23 | Mar 18 | Mar 13 | Mar 10 | Mar 6 | Mar 3 | Feb 27 | Feb 23 | Feb 17 |
Last 32° | Apr 16 | Apr 9 | Apr 3 | Mar 30 | Mar 26 | Mar 22 | Mar 17 | Mar 12 | Mar 5 |
Last 36° | Apr 25 | Apr 20 | Apr 17 | Apr 14 | Apr 12 | Apr 9 | Apr 6 | Apr 3 | Mar 30 |
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 24.
- There is a 50% chance of being hit by a 32° frost starting around November 5
- You have a 80% chance of seeing 32° by November 17
- 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° | Dec 20 | Dec 31 | Jan 8 | Jan 16 | Jan 26 | Feb 11 | -- | -- | -- |
First 20° | Nov 28 | Dec 10 | Dec 19 | Dec 26 | Jan 3 | Jan 10 | Jan 18 | Jan 29 | Feb 18 |
First 24° | Nov 10 | Nov 20 | Nov 27 | Dec 3 | Dec 9 | Dec 14 | Dec 21 | Dec 28 | Jan 7 |
First 28° | Oct 31 | Nov 7 | Nov 12 | Nov 16 | Nov 20 | Nov 24 | Nov 28 | Dec 3 | Dec 10 |
First 32° | Oct 18 | Oct 24 | Oct 29 | Nov 2 | Nov 5 | Nov 9 | Nov 13 | Nov 17 | Nov 24 |
First 36° | Oct 7 | Oct 11 | Oct 15 | Oct 17 | Oct 20 | Oct 23 | Oct 25 | Oct 29 | Nov 2 |
Data is provided by the NOAA National Centers for Environmental Information.