City	Sow outdoors	Last frost
Salt Lake City	Apr 7 to Apr 28	Mar 31
West Valley City	Apr 15 to May 6	Apr 8
West Jordan	Apr 25 to May 16	Apr 18
Provo	Apr 25 to May 16	Apr 18
St. George	Mar 21 to Apr 11	Mar 14
Lehi	May 7 to May 28	Apr 30
Orem	Apr 26 to May 17	Apr 19
Sandy	May 6 to May 27	Apr 29
Ogden	Apr 28 to May 19	Apr 21
South Jordan	Apr 25 to May 16	Apr 18
Layton	May 6 to May 27	Apr 29
Eagle Mountain	Jun 9 to Jun 30	Jun 2
Millcreek	May 2 to May 23	Apr 25
Herriman	Apr 25 to May 16	Apr 18
Saratoga Springs	May 7 to May 28	Apr 30
Taylorsville	Apr 7 to Apr 28	Mar 31
Logan	May 15 to Jun 5	May 8
Murray	May 6 to May 27	Apr 29
Draper	Apr 25 to May 16	Apr 18
Spanish Fork	May 2 to May 23	Apr 25
Riverton	Apr 25 to May 16	Apr 18
Bountiful	May 2 to May 23	Apr 25
Tooele	May 9 to May 30	May 2
Cedar City	May 11 to Jun 1	May 4
American Fork	Apr 24 to May 15	Apr 17
Syracuse	Apr 29 to May 20	Apr 22
Roy	Apr 29 to May 20	Apr 22
Pleasant Grove	Apr 24 to May 15	Apr 17
Washington	Mar 21 to Apr 11	Mar 14
Midvale	May 6 to May 27	Apr 29
Springville	Apr 25 to May 16	Apr 18
Kearns	Apr 15 to May 6	Apr 8
Magna	Apr 10 to May 1	Apr 3
Clearfield	May 6 to May 27	Apr 29
Kaysville	Apr 26 to May 17	Apr 19
Cottonwood Heights	May 6 to May 27	Apr 29
Holladay	May 6 to May 27	Apr 29
South Salt Lake	Apr 7 to Apr 28	Mar 31
Farmington	Apr 26 to May 17	Apr 19
Hurricane	Apr 8 to Apr 29	Apr 1
West Haven	Apr 29 to May 20	Apr 22
Payson	May 11 to Jun 1	May 4
Clinton	Apr 29 to May 20	Apr 22
North Salt Lake	May 1 to May 22	Apr 24
North Ogden	Apr 26 to May 17	Apr 19
Highland	May 10 to May 31	May 3
Brigham City	May 12 to Jun 2	May 5

Questions

When should I plant green beans in Utah?

In Salt Lake City, sow outdoors from April 7 to April 28. Across Utah the window opens between March 21 and June 9, depending on the local last frost.

How is this date worked out?

Sow outdoors 1–4 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.