utah frost dates, county by county.

Beaver County

Last spring: 04-28 · First fall: 10-12

Box Elder County

Last spring: 05-03 · First fall: 10-12

Cache County

Last spring: 04-15 · First fall: 10-27

Carbon County

Last spring: 04-22 · First fall: 10-22

Daggett County

Last spring: 05-10 · First fall: 10-03

Davis County

Last spring: 04-01 · First fall: 11-01

Duchesne County

Last spring: 04-22 · First fall: 10-16

Emery County

Last spring: 05-04 · First fall: 10-05

Garfield County

Last spring: 04-23 · First fall: 10-23

Grand County

Last spring: 04-08 · First fall: 10-30

Iron County

Last spring: 05-06 · First fall: 10-09

Juab County

Last spring: 05-02 · First fall: 10-10

Kane County

Last spring: 04-03 · First fall: 11-02

Millard County

Last spring: 05-07 · First fall: 10-05

Morgan County

Last spring: 05-08 · First fall: 10-04

Piute County

Last spring: 05-08 · First fall: 10-03

Rich County

Last spring: 05-30 · First fall: 09-11

Salt Lake County

Last spring: 03-08 · First fall: 11-18

San Juan County

Last spring: 04-24 · First fall: 10-23

Sanpete County

Last spring: 05-12 · First fall: 09-29

Sevier County

Last spring: 05-07 · First fall: 10-04

Summit County

Last spring: 06-19 · First fall: 09-09

Tooele County

Last spring: 04-28 · First fall: 10-12

Uintah County

Last spring: 04-19 · First fall: 10-13

Utah County

Last spring: 04-09 · First fall: 10-30

Wasatch County

Last spring: 05-17 · First fall: 10-01

Washington County

Last spring: 03-18 · First fall: 11-16

Wayne County

Last spring: 03-31 · First fall: 11-07

Weber County

Last spring: 05-04 · First fall: 10-06