Frost dates · Utah
Utah counties by frost timing.
Latest at top, earliest at bottom. In most states this matches the north-to-south gradient.
Sorted by spring frost
Latest → earliest.
Summit County
Spring Jun 19·Fall Sep 982-day season
Rich County
Spring May 30·Fall Sep 11104-day season
Wasatch County
Spring May 17·Fall Oct 1137-day season
Sanpete County
Spring May 12·Fall Sep 29140-day season
Daggett County
Spring May 10·Fall Oct 3146-day season
Morgan County
Spring May 8·Fall Oct 4149-day season
Piute County
Spring May 8·Fall Oct 3148-day season
Millard County
Spring May 7·Fall Oct 5151-day season
Sevier County
Spring May 7·Fall Oct 4150-day season
Iron County
Spring May 6·Fall Oct 9156-day season
Emery County
Spring May 4·Fall Oct 5154-day season
Weber County
Spring May 4·Fall Oct 6155-day season
Box Elder County
Spring May 3·Fall Oct 12162-day season
Juab County
Spring May 2·Fall Oct 10161-day season
Beaver County
Spring Apr 28·Fall Oct 12167-day season
Tooele County
Spring Apr 28·Fall Oct 12167-day season
San Juan County
Spring Apr 24·Fall Oct 23182-day season
Garfield County
Spring Apr 23·Fall Oct 23183-day season
Carbon County
Spring Apr 22·Fall Oct 22183-day season
Duchesne County
Spring Apr 22·Fall Oct 16177-day season
Uintah County
Spring Apr 19·Fall Oct 13177-day season
Cache County
Spring Apr 15·Fall Oct 27195-day season
Utah County
Spring Apr 9·Fall Oct 30204-day season
Grand County
Spring Apr 8·Fall Oct 30205-day season
Kane County
Spring Apr 3·Fall Nov 2213-day season
Davis County
Spring Apr 1·Fall Nov 1214-day season
Wayne County
Spring Mar 31·Fall Nov 7221-day season
Washington County
Spring Mar 18·Fall Nov 16243-day season
Salt Lake County
Spring Mar 8·Fall Nov 18255-day season
Alphabetical · A to Z
- Beaver County
- Box Elder County
- Cache County
- Carbon County
- Daggett County
- Davis County
- Duchesne County
- Emery County
- Garfield County
- Grand County
- Iron County
- Juab County
- Kane County
- Millard County
- Morgan County
- Piute County
- Rich County
- Salt Lake County
- San Juan County
- Sanpete County
- Sevier County
- Summit County
- Tooele County
- Uintah County
- Utah County
- Wasatch County
- Washington County
- Wayne County
- Weber County