Average Last Frost Dates and the Safe Dates for Idaho Towns

Not sure when to start planting? This might help.
These are the Average Last Frost Dates and the Safe Dates for Idaho towns.

The first date is the Avg Last Frost and the second is the Safe Date.

American Falls -May 16 June 7
Anderson Dam- May 6 May 23
Arco- June 12 July 4
Arrowrock Dam -May 3 May 19
Ashton- June 15 July 7

Avery- May 21 June 14
Bayview Model Basin- May 29 June 18
Bliss -May 18 June 8
Boise -May 8 May 26
Bonners Ferry -May 16 May 29

Burley Airport -May 16 June 5
Caldwell -May 1 May 17
Cascade -June 19 July 12
Callis -May 28 June 24
Chilly Barton Flat -June 30 July 20

Couer D'Alene -May 11 May 26
Council -May 24 June 18
Deer Flat Dam -May 3 May 19
Driggs- June 18 July 7
Emmett -May 13 June 1

Fairfield Ranger Station -June 23 July 10
Fenn Ranger Station -May 1 May 18
Fort Hall Indian Agency -May 24 June 12
Garden Valley -June 2 June 27
Glenns Ferry -May 17 June 6

Grace -June 8 June 28
Grand View -May 8 May 26
Grangeville -May 25 June 12
Grouse -July 13 July 30
Hailey- Airport June 14 July 1

Hamer -June 13 July 7
Hazelton -May 13 May 28
Hill City -June 29 July 16
Hollister -May 28 June 15
Idaho City -June 25 July 15

Idaho Falls Airport -May 25 June 14
Island Park Dam- July 1 July 18
Jerome -May 14 June 1
Kellogg -May 16 June 9
Kooskia- May 12 June 3

Kuna -May 23 June 12
Lifton Pumping Station -May 18 June 5
Mackay Ranger Station -June 8 June 30
Malad- May 22 June 13
Malad City Airport -June 5 June 28

May Ranger Station- June 20 July 8
McCall -June 23 July 16
Minidoka Dam -May 15 June 7
Montpelier Ranger Station -June 16 July 5
Moscow -May 23 June 18

Mountain Home- May 20 June 9
New Meadows Ranger Station -July 2 July 23
NezPerce -May 24 June 16
Oakley -May 25 June 13
Ola -May 29 June 21

Orofino -May 1 May 17
Palisades Dam- June 2 June 24
Parma -May 12 June 2
Paul -May 19 June 9
Payette- May 10 May 31

Pocatello -May 20 June 12
Porthill -May 15 June 1
Potlatch -June 13 July 15
Priest River -June 3 June 30
Richfield -May 30 June 20

Riggins Ranger Station- April 23 May 14
St Anthony -June 4 June 29
Saint Maries -May 18 June 4
Salmon -June 2 June 26
Sand Point -May 20 June 5

Shoshone -May 18 June 7
Swann Falls Powerhouse -April 20 May 12
Wallace Woodland Park -May 25 June 13