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