Winter bird bath water, state by state
Whether you need a heated bird bath depends on how often water freezes where you live. Each state page uses the NOAA climate normals for every city we cover, so you can see how many hard-freeze nights to expect and when to set a heater up.
Heater needed — water freezes solid for weeks
Alaska · 106 hard-freeze nightsIowa · 73 hard-freeze nightsIllinois · 52 hard-freeze nightsIndiana · 45 hard-freeze nightsMaine · 73 hard-freeze nightsMichigan · 59 hard-freeze nightsMinnesota · 95 hard-freeze nightsMontana · 76 hard-freeze nightsNorth Dakota · 113 hard-freeze nightsNebraska · 68 hard-freeze nightsNew Hampshire · 72 hard-freeze nightsNew York · 56 hard-freeze nightsOhio · 43 hard-freeze nightsSouth Dakota · 89 hard-freeze nightsVermont · 82 hard-freeze nightsWisconsin · 77 hard-freeze nightsWyoming · 92 hard-freeze nights
Heater useful most winter weeks
Arkansas · 11 hard-freeze nightsColorado · 72 hard-freeze nightsConnecticut · 44 hard-freeze nightsDelaware · 22 hard-freeze nightsIdaho · 36 hard-freeze nightsKansas · 41 hard-freeze nightsKentucky · 28 hard-freeze nightsMassachusetts · 57 hard-freeze nightsMaryland · 20 hard-freeze nightsMissouri · 36 hard-freeze nightsNew Jersey · 33 hard-freeze nightsNew Mexico · 33 hard-freeze nightsOklahoma · 17 hard-freeze nightsPennsylvania · 41 hard-freeze nightsRhode Island · 34 hard-freeze nightsTennessee · 18 hard-freeze nightsUtah · 41 hard-freeze nightsVirginia · 23 hard-freeze nightsWest Virginia · 34 hard-freeze nights
Heater optional — freezes are brief
Alabama · 6 hard-freeze nightsArizona · 0 hard-freeze nightsCalifornia · 0 hard-freeze nightsGeorgia · 4 hard-freeze nightsLouisiana · 1 hard-freeze nightsMississippi · 4 hard-freeze nightsNorth Carolina · 9 hard-freeze nightsNevada · 5 hard-freeze nightsOregon · 2 hard-freeze nightsSouth Carolina · 4 hard-freeze nightsTexas · 2 hard-freeze nightsWashington · 4 hard-freeze nights