Frost Dates in Oregon

Alkali Lake June 10 – September 14 Alsea Fh (Fall Creek) April 13 – November 3 Antelope 6 Ssw May 22 – October 3 Arlington April 6 – October 21 Ashland May 6 – October 8 Astoria Rgnl AP March 26 – November 11 Aurora State AP March 16 – November 14 Austin 3 S Always frozen Baker City Muni AP May 25 – September 15 Bandon 2 Nne March 9 – November 27 Barnes Stn June 2 – September 17 Beaverton 2 Ssw April 1 – November 6 Belknap Springs 8 N May 5 – October 12 Bend June 6 – September 20 Bend 7 Ne Always frozen Bly 4 Se June 8 – September 17 Boardman April 14 – October 21 Bonneville Dam March 14 – November 27 Brookings January 31 – December 27 Brookings 2 Se January 31 – December 27 BrothersAlways frozen Burns Muni AP June 11 – September 6 Cascade Locks March 24 – November 20 Cascadia April 29 – October 13 Cave Junction 1 Wnw May 1 – October 12 ChemultAlways frozen Chiloquin 12 Nw (Fort Klamath) Always frozen Clatskanie April 24 – October 24 Cloverdale March 17 – November 22 Condon May 10 – October 7 Coos Bay 8 Sw April 15 – October 31 Coquille City March 28 – November 6 Corvallis 10 Ssw April 11 – October 30 Corvallis State Univ April 17 – October 28 Corvallis Water Bureau May 15 – October 8 Cottage Grove 2e April 24 – October 25 Cottage Grove Dam April 12 – November 1 Cougar Dam March 2 – November 30 Crater Lake Nps Hq Always frozen Dallas 2 Ne April 16 – November 1 Dayville 8 Nw May 4 – October 6 Detroit Dam March 9 – December 3 Dorena April 16 – October 28 Drain April 16 – October 25 Drewsey June 5 – September 5 Dufur May 12 – October 7 Elgin May 24 – September 18 Elkton 1sw April 11 – November 6 Elkton 3 Sw March 21 – November 12 Enterprise 20 Nne June 8 – September 5 Estacada 2 Se March 27 – November 14 Eugene Mahlon Sweet AP April 11 – October 23 Falls City 2 Ssw April 18 – November 7 Fern Ridge-Veneta April 18 – October 25 Fields May 10 – October 7 Florence #2 April 10 – November 15 Forest Grove April 16 – October 26 Fossil June 3 – September 14 Foster Dam April 12 – October 28 Ft Clatsop Natl Mem March 30 – November 18 Gerber Dam May 31 – September 21 Gold Beach Rs February 16 – December 16 Government Camp May 27 – October 9 Grants Pass April 8 – October 28 GrizzlyAlways frozen Halfway May 15 – September 24 Hart Mtn Refuge Always frozen Headworks Portland Wtr B March 27 – November 18 Heppner April 26 – October 19 Hermiston 2 Nw April 27 – October 7 Hermiston Muni AP April 26 – October 10 Honeyman Sp March 28 – November 22 Hood Rvr Exp Stn April 20 – October 13 Howard Prairie Dam June 8 – September 24 Huntington April 23 – October 13 Idleyld Park 4 Ne April 27 – October 19 Illahe March 30 – November 17 John Day May 28 – September 18 John Day 35 Wnw April 30 – October 14 Joseph May 24 – October 1 Keno June 5 – September 20 Kent May 15 – October 11 Klamath Falls Intl AP June 9 – September 18 La Grande May 6 – October 1 Lacomb 3 Nne April 26 – October 24 Lakeview 2 Nnw June 4 – September 17 Langlois #2 March 16 – November 29 Laurel Mtn May 20 – October 23 Leaburg 1 Sw April 3 – November 11 Lebanon March 14 – November 18 Lemolo Lake 3 Nnw June 1 – September 23 Long Creek June 5 – September 14 Lookout Pt Dam March 7 – November 27 Lost Creek Dam April 29 – October 17 MadrasAlways frozen Madras 2 N May 19 – October 4 Malheur Branch Exp Stn April 23 – October 13 Malheur Refuge Hq May 29 – September 18 Mapleton February 15 – December 9 Marion Forks Fish Hatchery May 15 – September 30 Mc Dermitt 26 N June 4 – September 26 Mc Minnville April 5 – November 7 Mckenzie Rvr Rs May 1 – October 10 Mcminnville Muni AP April 15 – October 26 Mcnary Dam #2 March 30 – November 4 MeachamAlways frozen Medford Rogue Vly AP April 8 – October 29 Milton Freewater March 25 – October 29 Mitchell 2 E May 22 – October 4 Molalla 7ne March 16 – November 19 Monument 2 May 9 – September 27 Moro May 12 – October 4 N Willamette Exp Stn March 18 – November 13 Nature Park-Beaverton February 11 – December 5 Newport March 21 – November 27 Newport 1 Se February 19 – December 16 Newport 3n March 12 – December 10 North Bend Rgnl AP February 21 – December 9 Nyssa April 18 – October 18 O O Rch June 11 – September 6 Oakridge Fish Hatchery April 24 – October 24 Odell Lake-East Always frozen Ontario Ksrv April 22 – October 9 Ontario Muni AP April 21 – October 14 Oregon City March 18 – November 18 Otis 2 Ne April 4 – November 16 Owyhee Dam May 7 – October 5 Paisley June 6 – September 14 Parkdale 1 Nne May 13 – October 3 PaulinaAlways frozen Pelton Dam May 5 – October 7 Pendleton April 26 – October 16 Pendleton Branch Exp Stn May 12 – September 27 Pendleton Dwtn April 22 – October 9 Pendleton Wfo April 14 – October 22 Pilot Rock 1 Se May 7 – October 4 Port Orford #2 February 17 – December 3 Portland Intl AP March 13 – November 19 Portland Kgw-Tv February 25 – December 1 Portland Troutdale AP March 16 – November 20 Portland Wfo March 13 – November 22 Portland-Hillsboro AP April 16 – October 23 Powers March 21 – November 14 Prineville June 1 – September 22 Prospect 2 Sw May 19 – October 3 Redmond Roberts Fld June 9 – September 14 Rex 1 S March 21 – November 22 Richland May 10 – October 1 Riddle March 31 – November 6 Riley 10 Wsw June 11 – September 11 Riverside 7 Ssw June 7 – September 6 Rockville 5 N May 29 – September 14 Rome 2 Nw June 11 – September 10 Rome St AP May 26 – September 21 Roseburg Kqen March 23 – November 18 Roseburg Rgnl AP March 19 – November 20 Ruch May 4 – October 13 Saint Helens Rfd April 18 – November 7 Salem Mcnary Fld April 3 – November 1 Santiam Junction Always frozen Scappoose Ind AP April 10 – November 2 Scotts Mills 9 Se April 27 – November 4 Seaside April 2 – November 12 SenecaAlways frozen Sexton Summit May 16 – October 30 Sheaville 1 Se May 22 – September 28 Silver Creek Falls April 30 – October 22 Silver Lake Rs Always frozen Silverton March 28 – November 10 SistersAlways frozen Squaw Butte-Northern Great Bas June 11 – September 28 Stayton March 29 – November 6 Summer Lake 1 S June 8 – September 15 SunriverAlways frozen The Dalles April 14 – October 23 The Poplars Always frozen Three Lynx April 5 – November 8 Tillamook April 22 – October 21 Tillamook 6se April 5 – November 4 Toketee Falls April 29 – October 18 Troutdale March 26 – November 17 Union May 11 – September 26 Vale May 8 – September 29 Vernonia #2 May 8 – October 1 Wallowa June 7 – September 9 Westfall May 7 – October 3 Wickiup Dam June 7 – September 18 Winchester March 31 – November 5 Winchester Bay Coast Grd March 25 – November 24 Yachats February 19 – December 11