Maine climate

Maine Frost Dates

The median last spring freeze and first fall freeze (32°F) at 82 NOAA stations in Maine, 1991-2020, with the growing season between them.

Every station

A median date has an even chance of a later freeze in spring or an earlier one in fall. Each town page gives the dates at 36, 32 and 28°F and every probability from 10 to 90 percent.

StationElevationLast freezeFirst freezeSeason, daysTown page
Acadia Np470 ftApril 27October 22178Bar Harbor
Allagash596 ftJune 2September 15105Saint Francis
Andover 2822 ftMay 19September 25129Andover
Augusta State AP350 ftApril 27October 16172Augusta
Bangor Intl AP148 ftMay 4October 4153Bangor
Barnard545 ftMay 12October 1142Sebec
Bath25 ftMay 10October 6149North Bath
Belfast20 ftMay 7October 5151Belfast
Bethel 6 Sse790 ftMay 6October 2149Greenwood
Brassua Dam1,069 ftMay 23September 29129Greenville
Bridgewater420 ftMay 25September 18116Bridgewater
Bridgton 3 Nw508 ftMay 5October 5153Bridgton
Brunswick Nas70 ftMay 2October 10161Brunswick Station
Cape Neddick152 ftMay 1October 14166Cape Neddick
Caribou Muni AP624 ftMay 7October 1147Caribou
Clayton Lake1,000 ftMay 30September 13106Saint Francis
Corinna297 ftMay 8October 3148Corinna
Danforth475 ftMay 25September 24122Danforth
Dover-Foxcroft Wwtp370 ftMay 15September 28136Dover-Foxcroft
Durham140 ftMay 15October 2140Lisbon Falls
E Sangerville635 ftMay 6October 7154Dover-Foxcroft
E Surry105 ftMay 8October 9154Surry
East Hiram528 ftMay 12October 1142Hiram
Eastport85 ftApril 29October 25179Eastport
Eustis1,260 ftMay 24September 21120Eustis
Farmington405 ftMay 16September 26133Farmington
Frenchville Aroostook AP988 ftMay 6October 2149Saint Agatha
Fryeburg E Slopes AP445 ftMay 17September 25131Fryeburg
Ft Kent610 ftMay 23September 24124Fort Kent
Gardiner133 ftMay 1October 11163Gardiner
Grand Lake Stream290 ftMay 4October 10159Princeton
Gray378 ftApril 28October 19174Gray
Greenville Maine Forestry Svc1,037 ftMay 7October 9155Greenville
Harmony320 ftMay 11October 1143Harmony
Hartford705 ftMay 6October 3150Hartford
Hollis304 ftMay 14September 30139Lake Arrowhead
Houlton 5N390 ftMay 19September 23127Littleton
Houlton Intl AP476 ftMay 27September 18114Houlton
Jackman1,214 ftMay 26September 23120Jackman
Jonesboro194 ftMay 3October 9159Columbia Falls
Kennebunkport20 ftMay 9October 3147Kennebunkport
Lewiston180 ftApril 25October 19177Lewiston
Limestone 4 Nnw737 ftMay 16September 24131Limestone
Lincoln Sanitary District/wtp190 ftMay 4October 6155Lincoln
Livermore Falls 1 E380 ftMay 11September 29141Livermore Falls
Long Falls Dam1,160 ftMay 13September 30140Eustis
Madison220 ftMay 8October 5150Anson
Middle Dam1,460 ftMay 19October 1135Andover
Millinocket360 ftMay 9October 5149Millinocket
Millinocket Muni AP406 ftMay 8October 1146Millinocket
Millinocket Wastewater360 ftMay 17September 29135Millinocket
Moosehead1,037 ftMay 13September 30140Greenville
New Sharon480 ftMay 7October 2148New Sharon
Newcastle213 ftApril 27October 18174Newcastle
Old Town 2 W127 ftMay 13September 28138Old Town
Orono115 ftMay 1October 6158Orono
Patten 2820 ftMay 13September 30140Patten
Pittston Farm1,100 ftMay 20September 23126Jackman
Pittston Farms Nepp1,076 ftMay 21September 21123Jackman
Poland570 ftMay 3October 7157Poland
Portland Intl Jetport45 ftApril 26October 15172South Portland Gardens
Presque Isle599 ftMay 14September 26135Presque Isle
Rangeley1,530 ftMay 23September 27127Phillips
Rangeley 2 Nw1,780 ftMay 23September 24124Eustis
Robbinston115 ftMay 5October 13161Robbinston
Rumford 1 Sse630 ftMay 4October 6155Rumford
Rumford 6SW630 ftMay 12September 29140Rumford
Sanford 2 Nnw289 ftMay 16September 30137Springvale
Sebec Lake380 ftMay 16October 1138Dover-Foxcroft
Tenants Harbor21 ftApril 27October 25181Saint George
Topsfield 2620 ftMay 6October 8155Princeton
Turner565 ftMay 1October 10162Turner
Van Buren 2456 ftMay 23September 26126Van Buren
Vanceboro No 2420 ftMay 13October 1141Danforth
W Rockport 1 Nnw361 ftApril 27October 19175Rockport
Waterville Trtmt Plt73 ftMay 2October 10161Waterville
Wesley410 ftMay 2October 15166Alexander
West Buxton 2 Nnw220 ftMay 7October 4150Limington
Westport Island90 ftApril 28October 21176Westport
Windham 2NW443 ftApril 30October 20173North Windham
Wiscasset AP68 ftMay 8October 7152Wiscasset
Woodland123 ftApril 21October 26188Woodland

Sources

NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal freeze probabilities. Public domain.