First frost date map
- when is our first frost
- when is our first frost expected
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The first frost release date...
Last frost date 2025
The dates listed below are estimated average light frost dates based on historical data from the National Climatic Data Center. A light frost is when temperatures are between 29°–32°F. During a light frost, tender plants may be killed, with little destructive effect on hardier vegetation.
The probability of a frost occurring after the spring date or before the fall frost date listed below is 30%, which means that a frost could occur before or after the dates listed.
It’s best to take precautions and protect tender plants during early spring and late fall.
Different Types of Frost
- Light freeze: 29 degrees F to 32 degrees F – tender plants killed, with little destructive effect on other vegetation.
- Moderate freeze: 25 degrees F to 28 degrees F – widely destructive effect on most vegetation, with heavy damage to fruit blossoms and tender and semi-hardy plants.
- Severe freeze: 24 degrees F and colder – damage to most plants.
Learn how to protect your plants when frost is on its way.
*Higher elevations in Hawaii do occasionally see at-or-near freezing temperatures but de
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