National Weather Service United States Department of Commerce

Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >

Southwest Idaho and Southeast Oregon Freeze Data

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.

 
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
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