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