Frost Dates in Washington

Aberdeen March 29 – November 15 Aberdeen 20nne April 15 – November 2 Anacortes March 8 – November 20 Arlington April 22 – October 19 Baring April 14 – October 29 Battle Ground April 26 – October 16 Bellingham 3 Ssw April 1 – November 2 Bellingham Intl AP March 31 – October 30 Bickleton May 16 – October 9 Blaine March 31 – November 4 Boundary Dam May 4 – October 4 Bremerton March 29 – November 14 Buckley 1 Ne April 7 – October 30 Carson Fish Hatchery May 2 – October 9 Cedar Lake April 23 – November 1 Centralia April 22 – October 27 Chelan April 17 – October 22 Chewelah May 16 – September 15 Chief Joseph Dam April 26 – October 11 Cle Elum May 13 – September 25 Clearbrook April 18 – October 18 Clearwater April 29 – October 17 Colville May 2 – October 2 Concrete Ppl Fish Stn March 28 – November 14 Connell 1 W April 30 – October 12 Cougar 6 E April 1 – November 18 Coulee Dam 1 Sw April 22 – October 21 Coupeville 1 S March 17 – November 11 Cushman Powerhouse #2 March 24 – November 15 Darrington 21 Nne April 16 – October 25 Darrington Rs April 16 – October 23 Davenport June 6 – September 11 Dayton 1 Wsw April 28 – October 13 Deer Park AP May 22 – September 14 Diablo Dam April 10 – November 1 Easton May 9 – October 6 Ellensburg May 8 – October 2 Ellensburg Bowers Fld April 28 – October 7 Elma May 1 – October 14 Eltopia 8 Wsw April 21 – October 22 Elwha Rs April 9 – November 3 Entiat Fish Hatchery April 5 – October 24 Ephrata Muni AP April 22 – October 17 Everett March 24 – November 2 Everett Snohomish AP March 9 – November 17 Forks 1 E April 26 – October 25 Friday Harbor AP March 26 – November 10 Glenoma April 24 – October 15 Glenwood #2 Always frozen Goldendale May 19 – September 25 Grayland March 29 – November 7 Grays Rvr Hatchery April 27 – October 22 Harrington May 31 – September 12 Hartline May 2 – October 12 Hatton 9 Se April 25 – October 15 Holden Village May 25 – September 19 Hoquiam Bowerman AP March 30 – November 14 Humptulips Salmon Hatchery April 26 – October 22 Ice Harbor Dam April 7 – October 22 Kennewick March 28 – October 30 Kent March 20 – November 10 Lacrosse May 13 – September 26 Landsburg April 20 – October 25 Leavenworth 3 S May 10 – September 30 Lind 3 Ne May 7 – October 4 Long Beach Exp Stn April 6 – October 26 Longmire Rainier Nps May 22 – October 3 Longview April 8 – November 5 Matlock 8 S April 23 – October 20 Mayfield Pwr Plt April 7 – November 13 Mazama May 9 – September 29 Mcmillin Rsvr April 11 – October 30 Mcnary Dam March 27 – November 4 Methow 2 S April 21 – October 15 Monroe April 17 – October 23 Moses Lake Grant Co AP April 27 – October 8 Moxee City 10 E May 4 – October 10 Mt Adams Rs May 18 – September 25 Mt Vernon 3 Wnw March 24 – November 3 Mud Mtn Dam April 18 – October 31 Naselle 2 Ene April 24 – October 20 Newhalem April 2 – November 14 Newport May 12 – September 21 Northport May 8 – October 1 Odessa May 14 – September 26 Olga 2 Se February 26 – November 29 Olympia AP April 29 – October 14 Omak AP April 30 – October 7 Packwood April 30 – October 8 Palmer 3 Ese April 3 – November 11 Pasco Tri Cities AP April 27 – October 11 Plain May 22 – September 22 Pomeroy May 2 – October 4 Port Angeles March 12 – November 19 Port Angeles Intl AP April 8 – October 31 Port Townsend March 1 – November 28 Priest Rapids Dam March 24 – November 4 Prosser April 14 – October 22 Pullman 2 Nw May 6 – September 29 Pullman Moscow Rgnl AP April 29 – October 2 Quilcene 2 Sw April 11 – October 28 Quillayute State AP April 20 – October 26 Quinault 4 Ne April 7 – November 10 Quincy April 21 – October 16 Rainier Paradise Rs Always frozen Raymond 2 S April 26 – October 17 Renton Muni AP March 13 – November 16 Republic May 30 – September 10 Richland April 6 – October 24 Ritzville 1 Sse May 7 – October 10 Rosalia May 7 – September 28 Ross Dam April 8 – November 10 Sagemoor April 30 – October 13 Satus Pass 2 Ssw June 2 – October 1 Seattle Boeing Fld March 13 – November 17 Seattle Sand Pt Wsfo March 8 – November 23 Seattle Tacoma Intl AP March 2 – November 23 Sedro-Woolley March 27 – November 6 Selah 2 Ne May 5 – October 4 Sequim 2 E April 21 – October 20 Shelton Sanderson Fld April 27 – October 16 Skamania Fish Hatchery April 29 – October 22 Smyrna April 23 – October 12 Snoqualmie Falls March 30 – November 7 Snowden May 12 – October 11 Spokane 17 Ssw May 30 – September 4 Spokane Felts Fld April 26 – October 15 Spokane Intl AP April 26 – October 12 Spokane Wfo May 10 – September 26 St John April 29 – October 4 Stampede Pass May 14 – October 17 Startup 1 E April 15 – October 25 Stehekin 4 Nw April 27 – October 17 Sunnyside May 1 – October 6 Sunnyside #2 April 30 – October 8 Tacoma #1 March 8 – November 14 Tacoma Narrows AP March 11 – November 21 The Dalles Muni AP April 11 – October 26 Toledo Faa AP April 5 – October 25 Tolt S Fk Rsvr April 13 – November 10 Tonasket 11ne May 6 – October 6 Tonasket 4 Nne April 26 – October 10 Upper Baker Dam April 24 – October 29 Vancouver 4 Nne April 26 – October 18 Vancouver Pearson AP March 29 – November 9 Walla Walla Rgnl AP March 27 – October 31 Wapato April 21 – October 15 Waterville May 14 – October 1 Wenatchee April 4 – October 28 Wenatchee Pangborn AP April 8 – October 24 Whidbey Island Nas March 13 – November 14 Whitman Mission May 2 – October 1 Wilbur June 1 – September 22 Winthrop 1 Wsw May 15 – September 22 Yakima #2 April 8 – October 23 Yakima Air Terminal May 8 – October 4