ATANI / ChillCast

Arctic Star (Nectarine): 300 chill hours

Arctic Star needs roughly 300 chill hours below 45°F to break dormancy properly. Of the 150 fruit-growing locations tracked here, 128 reach that comfortably in an average winter and 9 are marginal.

Chill requirement

VarietySpeciesRequirementSource
Arctic StarNectarine300 hours (45°F Hours model)baylaurelnursery.com

Requirements are the representative 45°F-hours figures bundled with ChillCast, each taken from the published source linked above. Nurseries publish slightly different numbers for the same variety, so treat this as a mid-range value.

Where Arctic Star gets enough chill

Each location is compared with its ten-season average chill from NASA POWER. A location fits when the requirement is at or below 90% of its average, and is marginal up to 110%. Locations with their own page are linked; the rest are listed for comparison.

Australia

Fits (22)

LocationRegionAverage chill
HuonvilleTasmania1700 hours
BatlowNew South Wales1604 hours
OrangeNew South Wales1494 hours
BathurstNew South Wales1494 hours
HealesvilleVictoria1440 hours
LauncestonTasmania1342 hours
Bacchus MarshVictoria1317 hours
YoungNew South Wales1264 hours
AraratVictoria1246 hours
SheppartonVictoria1141 hours
CobramVictoria982 hours
GriffithNew South Wales886 hours
ClareSouth Australia748 hours
HobartTasmania707 hours
LoxtonSouth Australia582 hours
MilduraVictoria578 hours
StanthorpeQueensland576 hours
RenmarkSouth Australia542 hours
AdelaideSouth Australia364 hours
ToowoombaQueensland362 hours
MelbourneVictoria348 hours
ManjimupWestern Australia347 hours

Canada

Fits (12)

LocationRegionAverage chill
VancouverBritish Columbia1984 hours
AbbotsfordBritish Columbia1965 hours
VictoriaBritish Columbia1888 hours
Niagara-on-the-LakeOntario1457 hours
TorontoOntario1457 hours
St. CatharinesOntario1303 hours
SimcoeOntario1064 hours
KentvilleNova Scotia869 hours
OliverBritish Columbia466 hours
OsoyoosBritish Columbia466 hours
KelownaBritish Columbia456 hours
VernonBritish Columbia408 hours

Marginal (3)

LocationRegionAverage chill
CrestonBritish Columbia282 hours
PentictonBritish Columbia277 hours
SummerlandBritish Columbia277 hours

New Zealand

Fits (5)

LocationRegionAverage chill
CromwellOtago1893 hours
AlexandraOtago1893 hours
NelsonNelson Region1668 hours
BlenheimMarlborough1415 hours
ChristchurchCanterbury1414 hours

Marginal (5)

LocationRegionAverage chill
HastingsHawke's Bay Region333 hours
NapierHawke's Bay Region333 hours
Havelock NorthHawke's Bay Region333 hours
GisborneGisborne324 hours
MotuekaTasman District284 hours

South Africa

Fits (10)

LocationRegionAverage chill
FicksburgFree State1316 hours
BethlehemFree State1115 hours
CeresWestern Cape885 hours
WolseleyWestern Cape885 hours
WorcesterWestern Cape885 hours
JohannesburgGauteng769 hours
VilliersdorpWestern Cape531 hours
CaledonWestern Cape531 hours
RobertsonWestern Cape499 hours
PolokwaneLimpopo354 hours

Spain

Fits (15)

LocationRegionAverage chill
LeónCastille and León1712 hours
CalatayudAragon1585 hours
LogroñoLa Rioja1539 hours
MadridMadrid1473 hours
AlbaceteCastille-La Mancha1336 hours
LleidaCatalonia1208 hours
ZaragozaAragon1179 hours
BadajozExtremadura918 hours
ValenciaValencia723 hours
GranadaAndalusia711 hours
SevillaAndalusia628 hours
MurciaMurcia605 hours
CiezaMurcia605 hours
HuelvaAndalusia550 hours
GironaCatalonia349 hours

Turkey

Fits (13)

LocationRegionAverage chill
IspartaIsparta1466 hours
EğirdirIsparta1466 hours
KaramanKaraman1429 hours
İnegolBursa Province1339 hours
KonyaKonya1330 hours
MalatyaMalatya1329 hours
AnkaraAnkara1301 hours
AmasyaAmasya1292 hours
NiğdeNiğde Province1291 hours
DenizliDenizli1279 hours
BursaBursa Province1250 hours
AntalyaAntalya629 hours
ErzincanErzincan602 hours

United States

Fits (51)

LocationRegionAverage chill
Mount VernonWashington2084 hours
SeattleWashington1949 hours
PortlandOregon1814 hours
MedfordOregon1706 hours
SalemOregon1706 hours
Hood RiverOregon1569 hours
The DallesOregon1569 hours
ProsserWashington1478 hours
Walla WallaWashington1375 hours
CaldwellIdaho1332 hours
HammontonNew Jersey1272 hours
BoiseIdaho1258 hours
YakimaWashington1223 hours
Benton HarborMichigan1202 hours
EriePennsylvania1190 hours
WinchesterVirginia1176 hours
CharlottesvilleVirginia1160 hours
SpokaneWashington1146 hours
Traverse CityMichigan1134 hours
BiglervillePennsylvania1124 hours
HendersonvilleNorth Carolina1122 hours
Las CrucesNew Mexico1070 hours
GenevaNew York1058 hours
SpartanburgSouth Carolina1041 hours
CorneliaGeorgia1037 hours
WillcoxArizona1033 hours
RochesterNew York1031 hours
LubbockTexas1021 hours
NapaCalifornia1016 hours
BakersfieldCalifornia996 hours
Salt Lake CityUtah938 hours
Grand RapidsMichigan937 hours
WenatcheeWashington924 hours
EdgefieldSouth Carolina916 hours
AtlantaGeorgia912 hours
DavisCalifornia910 hours
ModestoCalifornia901 hours
HollisterCalifornia862 hours
DallasTexas842 hours
ChicoCalifornia834 hours
StocktonCalifornia760 hours
PalisadeColorado758 hours
Fort ValleyGeorgia748 hours
SacramentoCalifornia725 hours
FresnoCalifornia706 hours
FredericksburgTexas679 hours
ChelanWashington608 hours
Paso RoblesCalifornia580 hours
VisaliaCalifornia560 hours
RiversideCalifornia558 hours
WatsonvilleCalifornia555 hours

Marginal (1)

LocationRegionAverage chill
GainesvilleFlorida303 hours

Other nectarine varieties

All varieties

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ChillCast tracks this season's chill against the 300 hours Arctic Star needs, wherever you grow it.

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Generated

This page was generated on 2026-09-06.

About this data

Values are NASA POWER regional estimates (about 0.5° grid), not orchard measurements. Check your local extension service for station data.

Source: NASA POWER hourly 2-metre air temperature (MERRA-2). NASA does not endorse ChillCast.