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Boise, ID
Weather Forecast Office
Table lists the average freeze date from 1991 through 2020 (30-year climate period). For the spring, the average last freeze date is given. For the fall, the average first freeze date is given.
A frost can occur when temperatures reach or fall below 36°F.
A hard freeze is when temperatures reach or fall below 28°F.
A freeze is when temperatures reach or fall below 32°F.
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| City | Spring (Average Last Freeze Date) | Fall (Average First Freeze Date) | ||||||
|---|---|---|---|---|---|---|---|---|
| 36°F | 32°F | 28°F | 24°F | 36°F | 32°F | 28°F | 24°F | |
| Loading average freeze climatology... | ||||||||
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Boise, ID
National Interagency Fire Center
3833 S. Development Ave., Bldg 3807
Boise, ID 83705-5354
(208) 334-9860
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