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