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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 86
  171 Union City 83
Amador 227 Plymouth 102
Butte 244 Biggs 85
  012 Durham 88
Colusa 250 Williams 80
Contra Costa 047 Brentwood 75
  170 Concord 83
  213 El Cerrito 100
  178 Moraga 97
El Dorado 013 Camino 95
  228 Diamond Springs 100
Fresno 205 Coalinga 70
  007 Firebaugh/Telles 83
  190 Five Points South West 0
  002 FivePoints/WSFS USDA 70
  080 Fresno State 80
  142 Orange Cove 79
  124 Panoche 49
  039 Parlier 82
  105 Westlands 77
Imperial 041 Calipatria/Mulberry 30
  087 Meloland 22
  175 Palo Verde II 40
  128 Salton Sea East 0
  127 Salton Sea West 0
  068 Seeley 19
  201 UC-Andrade 0
  186 UC-San Luis 0
  181 Westmorland North 33
Inyo 035 Bishop 89
  183 Owens Lake North 97
  189 Owens Lake South 90
Kern 125 Arvin-Edison 72
  146 Belridge 69
  054 Blackwells Corner 79
  005 Shafter/USDA 70
Kings 021 Kettleman 0
  015 Stratford 75
Lassen 057 Buntingville 114
Los Angeles 216 Arleta 42
  215 Chatsworth 39
  133 Glendale 0
  174 Long Beach 50
  159 Monrovia 35
  197 Palmdale 84
  220 Palmdale Central 79
  078 Pomona 58
  204 Santa Clarita 48
  099 Santa Monica 39
  219 West Hills 40
Madera 145 Madera 0
  188 Madera II 0
Marin 187 Black Point 90
  157 Point San Pedro 99
Mendocino 085 Hopland FS 0
  106 Sanel Valley 86
Merced 092 Kesterson 85
  056 Los Banos 83
  148 Merced 84
Modoc 090 Alturas 113
Monterey 114 Arroyo Seco 81
  210 Carmel 92
  019 Castroville 0
  113 King City-Oasis Rd. 76
  193 Pacific Grove 116
  129 Pajaro 97
  116 Salinas North 56
  214 Salinas South II 82
Napa 109 Carneros 87
  077 Oakville 85
Orange 245 Coto de Caza 59
  075 Irvine 39
  241 San Clemente 67
Placer 195 Auburn 96
Riverside 135 Blythe NE 36
  118 Cathedral City 0
  239 Hemet 49
  200 Indio 2 16
  208 La Quinta II 22
  238 Moreno Valley 0
  136 Oasis 14
  240 Perris 52
  151 Ripley 40
  062 Temecula 48
  237 Temecula East III 59
  218 Thermal South 36
  044 U.C. Riverside 47
  179 Winchester 61
Sacramento 131 Fair Oaks 88
  140 Twitchell Island 77
San Benito 126 San Benito 91
  143 San Juan Valley 92
San Bernardino 134 Barstow NE 0
  199 Big Bear Lake 111
  233 Joshua Tree 67
  192 Lake Arrowhead 89
  234 Newberry Springs II 65
  117 Victorville 19
San Diego 207 Borrego Springs 31
  153 Escondido SPV 34
  150 Miramar 53
  147 Otay Lake 54
  184 San Diego II 40
  173 Torrey Pines 54
San Joaquin 166 Lodi West 0
  070 Manteca 81
  167 Tracy 0
San Luis Obispo 163 Atascadero 84
  202 Nipomo 81
  052 San Luis Obispo 66
  160 San Luis Obispo West 81
Santa Barbara 088 Cuyama 86
  094 Goleta Foothills 0
  231 Lompoc 96
  107 Santa Barbara 34
  230 Santa Barbara II 0
  232 Santa Maria II 69
  064 Santa Ynez 64
  165 Sisquoc 68
Santa Clara 211 Gilroy 82
Santa Cruz 104 De Laveaga 94
  209 Watsonville West II 108
Shasta 043 McArthur 111
  224 Shasta College 85
Siskiyou 236 Macdoel II 113
  225 Scott Valley 108
  091 Tulelake FS 116
Solano 121 Dixon 86
  212 Hastings Tract East 87
  139 Winters 74
Sonoma 158 Bennett Valley 95
  144 Petaluma East 98
  083 Santa Rosa 95
  103 Windsor 91
Stanislaus 206 Denair 89
  071 Modesto 85
  194 Oakdale 85
  161 Patterson 0
Sutter 235 Verona 89
Tehama 008 Gerber 0
  222 Gerber South 86
Tulare 203 Alpaugh 0
  182 Delano 80
  086 Lindcove 16
  169 Porterville 73
Ventura 152 Camarillo 56
  217 Moorpark 42
  156 Oxnard 0
  198 Santa Paula 51
Yolo 155 Bryte 84
  006 Davis 83
  196 Esparto 0
  226 Woodland 74
Yuba 084 Browns Valley 90