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Calculators

Cumulative Chilling Hours:
Cumulative Chill Hours and
Modified Chill Hours
Hours below 45° F
Hours between 32 F and 45° F
November 1 through February 28/29.

Cumulative Chilling Portions:
Dynamic Model
September 1 through August 31

Chilling Hour & Unit Accumulations:
Historic Accumulation of
Chill Hours, Modified Chill Hours,
& Chill Units (Utah Model)

Hours below 45° F
Hours between 32° F and 45° F
September 1 through August 31

Harvest Prediction Model:
for Peaches, Plums and Nectarines

Cumulative Chilling Portions - Select Station from List

County Station Portions
Alameda 191 Pleasanton 88
  171 Union City 82
Amador 227 Plymouth 110
Butte 244 Biggs 92
  012 Durham 92
Colusa 250 Williams 87
Contra Costa 047 Brentwood 77
  170 Concord 85
  213 El Cerrito 101
  178 Moraga 108
El Dorado 013 Camino 105
  228 Diamond Springs 110
Fresno 205 Coalinga 81
  007 Firebaugh/Telles 81
  190 Five Points South West 0
  002 FivePoints/WSFS USDA 79
  080 Fresno State 76
  142 Orange Cove 0
  124 Panoche 81
  039 Parlier 77
  105 Westlands 81
Imperial 041 Calipatria/Mulberry 28
  087 Meloland 18
  175 Palo Verde II 29
  128 Salton Sea East 0
  127 Salton Sea West 0
  068 Seeley 15
  201 UC-Andrade 0
  186 UC-San Luis 0
  181 Westmorland North 32
Inyo 035 Bishop 101
  183 Owens Lake North 112
  189 Owens Lake South 104
Kern 125 Arvin-Edison 73
  146 Belridge 74
  054 Blackwells Corner 0
  005 Shafter/USDA 73
Kings 021 Kettleman 0
  015 Stratford 78
Lassen 057 Buntingville 0
Los Angeles 216 Arleta 52
  215 Chatsworth 59
  133 Glendale 0
  174 Long Beach 43
  159 Monrovia 45
  197 Palmdale 98
  220 Palmdale Central 97
  078 Pomona 55
  204 Santa Clarita 72
  099 Santa Monica 41
  219 West Hills 56
Madera 145 Madera 0
  188 Madera II 0
Marin 187 Black Point 92
  157 Point San Pedro 96
Mendocino 085 Hopland FS 0
  106 Sanel Valley 100
Merced 092 Kesterson 0
  056 Los Banos 0
  148 Merced 82
Modoc 090 Alturas 137
Monterey 114 Arroyo Seco 62
  210 Carmel 99
  019 Castroville 0
  113 King City-Oasis Rd. 79
  193 Pacific Grove 95
  129 Pajaro 90
  116 Salinas North 92
  214 Salinas South II 81
Napa 109 Carneros 0
  077 Oakville 88
Orange 245 Coto de Caza 56
  075 Irvine 43
  241 San Clemente 54
Placer 195 Auburn 100
Plumas 264 Sierra Valley Center 130
Riverside 135 Blythe NE 35
  118 Cathedral City 0
  239 Hemet 49
  200 Indio 2 19
  208 La Quinta II 24
  238 Moreno Valley 0
  136 Oasis 24
  240 Perris 51
  151 Ripley 30
  062 Temecula 63
  237 Temecula East III 69
  218 Thermal South 28
  044 U.C. Riverside 55
  179 Winchester 74
Sacramento 131 Fair Oaks 89
  140 Twitchell Island 71
San Benito 126 San Benito 87
  143 San Juan Valley 89
San Bernardino 134 Barstow NE 0
  199 Big Bear Lake 127
  233 Joshua Tree 82
  192 Lake Arrowhead 137
  234 Newberry Springs II 0
  117 Victorville 97
San Diego 207 Borrego Springs 31
  153 Escondido SPV 28
  150 Miramar 47
  147 Otay Lake 45
  184 San Diego II 31
  173 Torrey Pines 37
San Joaquin 166 Lodi West 0
  070 Manteca 85
  167 Tracy 0
San Luis Obispo 163 Atascadero 93
  202 Nipomo 72
  052 San Luis Obispo 62
  160 San Luis Obispo West 74
Santa Barbara 088 Cuyama 98
  094 Goleta Foothills 0
  231 Lompoc 54
  107 Santa Barbara 55
  230 Santa Barbara II 0
  232 Santa Maria II 70
  064 Santa Ynez 64
  165 Sisquoc 80
Santa Clara 211 Gilroy 79
Santa Cruz 104 De Laveaga 97
  209 Watsonville West II 99
Shasta 043 McArthur 135
  224 Shasta College 101
Siskiyou 236 Macdoel II 138
  225 Scott Valley 130
  091 Tulelake FS 137
Solano 121 Dixon 0
  212 Hastings Tract East 85
  139 Winters 83
Sonoma 158 Bennett Valley 106
  144 Petaluma East 100
  083 Santa Rosa 101
  103 Windsor 97
Stanislaus 206 Denair 89
  071 Modesto 92
  194 Oakdale 86
  161 Patterson 0
Sutter 235 Verona 94
Tehama 008 Gerber 0
  222 Gerber South 93
Tulare 203 Alpaugh 0
  182 Delano 75
  086 Lindcove 0
  169 Porterville 0
Ventura 152 Camarillo 50
  217 Moorpark 60
  156 Oxnard 0
  198 Santa Paula 0
Yolo 155 Bryte 0
  006 Davis 89
  196 Esparto 0
  226 Woodland 82
Yuba 084 Browns Valley 88