Frost Dates in Idaho

Aberdeen Exp Stn May 21 – September 20 American Falls May 4 – October 8 American Falls 6 Ne May 14 – October 2 Arco May 22 – September 22 Arco 17 Sw May 24 – October 1 Arrowrock Dam April 28 – October 14 Ashton 1n May 21 – September 21 Bayview Model Basin May 22 – September 22 Bellevue May 13 – October 2 Bern June 17 – September 3 Blackfoot Fire Dept May 5 – October 3 Boise 7 N May 17 – October 12 Boise Air Terminal April 24 – October 21 Boise Lucky Peak Dam April 30 – October 22 Bonners Ferry April 30 – October 4 Brownlee Dam April 2 – November 5 Bruneau April 17 – October 17 Buhl #2 April 25 – October 15 Burley Muni AP May 7 – October 4 Cabinet Gorge May 9 – October 8 Cambridge May 15 – September 27 Cascade 1 Nw May 30 – September 19 Castleford 2 N May 17 – September 29 Challis AP May 14 – September 25 Chilly Barton Flat June 14 – September 8 Coeur D'Alene April 22 – October 18 Cottonwood 2 Wsw May 6 – October 13 Council May 10 – October 2 Craters Of The Moon June 19 – September 9 Deadwood Lodge Always frozen Deer Flat Dam April 23 – October 18 DixieAlways frozen Dixie NAlways frozen Downey May 31 – September 18 Driggs June 13 – September 9 Dubois Exp Stn May 18 – September 30 Dworshak Fish Hatchery April 20 – October 20 Elk City 1ne Always frozen Elk Rvr May 16 – September 23 Emmett 2 E April 30 – October 17 Fairfield Rs June 8 – September 14 Fenn Rs April 26 – October 20 Ft Hall 1 Nne May 20 – September 20 Garden Valley June 1 – September 10 Gibbonsville #2 June 1 – September 17 Glenns Ferry May 1 – October 3 Grace May 29 – September 17 Grand View 4 Nw April 28 – October 6 Grangeville May 9 – October 3 Hagerman 2 Sw May 3 – October 1 Hamer 4 Nw June 3 – September 11 Hazelton May 7 – October 5 Headquarters Always frozen Hill City 1 W June 16 – September 6 Homedale 1 Se April 24 – October 9 Howe May 24 – September 14 Idaho City June 17 – September 5 Idaho Falls - Kifi May 9 – October 1 Idaho Falls 16 Se June 9 – September 11 Idaho Falls 46 W June 11 – September 6 Idaho Falls Fanning Fld May 23 – September 20 Island Park Always frozen Jerome May 2 – October 14 Jerome Co AP May 1 – October 14 Kamiah April 29 – October 5 Kellogg May 14 – September 26 Ketchum Rs Always frozen Kooskia 5 Sse April 30 – October 11 Lava Hot Springs May 21 – September 21 Leadore #2 Always frozen Lewiston Nez Perce Co AP April 6 – October 26 Lifton Pumping Stn May 19 – September 21 Lowell Three Rivers April 16 – October 25 Lowman June 6 – September 4 Mackay Lost Rvr Rs June 1 – September 20 Malad City May 22 – September 20 Malta June 5 – September 13 Malta 4 Ese June 1 – September 19 Massacre Rocks Sp May 20 – September 26 May 2sse June 12 – September 6 Mccall June 22 – September 2 Mccall AP June 10 – September 10 Mccammon May 23 – September 24 Middle Fork Lodge May 21 – September 18 Minidoka Dam May 16 – October 1 Monteview June 12 – September 7 Moscow U Of I Always frozen Mtn Home May 2 – October 8 Mullan May 12 – September 30 Mullan Pass Vor/Dme June 10 – September 23 Murphy (Desert) Hot Springs Always frozen Murphy 10 W May 17 – September 30 Nampa Sugar Factory April 29 – October 13 New Meadows Rs Always frozen Nezperce May 24 – September 20 Oakley May 15 – October 2 Ola May 31 – September 16 Parma Exp Stn April 27 – October 9 Paul 1ene May 6 – October 6 Payette April 19 – October 20 Picabo June 16 – September 9 Pierce June 3 – September 7 Plummer 3 Wsw May 11 – October 5 Pocatello 2 Ne May 16 – October 2 Pocatello City May 2 – October 11 Pocatello Rgnl AP May 23 – September 18 Porthill 1 Sw May 4 – September 30 Potlatch 3 Nne May 15 – September 21 Powell May 31 – September 12 Preston May 16 – September 28 Prichard 3 Ese May 31 – September 5 Priest Rvr Exp Stn May 20 – September 13 Red River Rs Always frozen Rexburg Byu Idaho May 12 – September 24 Rexburg Madison Co AP May 15 – September 23 Reynolds May 21 – September 28 Richfield May 24 – September 26 Rigby May 9 – October 5 Riggins May 6 – October 9 Saint Anthony May 17 – September 22 Saint Maries May 3 – October 4 Salmon-Ksra May 17 – September 24 Sandpoint Exp Stn May 8 – September 28 Shoshone 1 Wnw April 24 – October 16 Shoup May 3 – October 8 Silver City 5 W May 31 – October 6 Small 6n June 5 – September 20 Soda Springs AP Always frozen StanleyAlways frozen Stanley Rs Always frozen Sugar City May 29 – September 13 Swan Falls Ph April 12 – October 26 Swan Valley Always frozen Taylor Rch May 11 – September 30 Tetonia Exp Stn June 15 – September 7 Twin Falls 6 E May 6 – October 3 Twin Falls Sun Vly Rgnl AP May 9 – October 4 Twin Falls-Kmvt April 30 – October 9 Wallace May 5 – October 2 WarrenAlways frozen Weiser April 23 – October 13 Winchester May 23 – September 25 Yellowpine June 12 – September 11 Yellowpine Bar May 2 – October 10