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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 45
  171 Union City 41
Amador 227 Plymouth 54
Butte 244 Biggs 49
  012 Durham 48
Colusa 250 Williams 48
Contra Costa 047 Brentwood 44
  170 Concord 46
  213 El Cerrito 47
  178 Moraga 50
El Dorado 013 Camino 51
  228 Diamond Springs 52
Fresno 205 Coalinga 41
  007 Firebaugh/Telles 49
  190 Five Points South West 0
  002 FivePoints/WSFS USDA 38
  080 Fresno State 45
  142 Orange Cove 47
  124 Panoche 31
  039 Parlier 49
  105 Westlands 48
Imperial 041 Calipatria/Mulberry 19
  087 Meloland 15
  175 Palo Verde II 28
  128 Salton Sea East 0
  127 Salton Sea West 0
  068 Seeley 13
  201 UC-Andrade 0
  186 UC-San Luis 0
  181 Westmorland North 21
Inyo 035 Bishop 48
  183 Owens Lake North 54
  189 Owens Lake South 52
Kern 125 Arvin-Edison 45
  146 Belridge 43
  054 Blackwells Corner 48
  005 Shafter/USDA 46
Kings 021 Kettleman 0
  015 Stratford 45
Lassen 057 Buntingville 62
Los Angeles 216 Arleta 18
  215 Chatsworth 16
  133 Glendale 0
  174 Long Beach 24
  159 Monrovia 14
  197 Palmdale 48
  220 Palmdale Central 43
  078 Pomona 28
  204 Santa Clarita 19
  099 Santa Monica 14
  219 West Hills 17
Madera 145 Madera 0
  188 Madera II 0
Marin 187 Black Point 46
  157 Point San Pedro 54
Mendocino 085 Hopland FS 0
  106 Sanel Valley 44
Merced 092 Kesterson 50
  056 Los Banos 48
  148 Merced 49
Modoc 090 Alturas 62
Monterey 114 Arroyo Seco 40
  210 Carmel 41
  019 Castroville 0
  113 King City-Oasis Rd. 36
  193 Pacific Grove 57
  129 Pajaro 48
  116 Salinas North 25
  214 Salinas South II 38
Napa 109 Carneros 44
  077 Oakville 45
Orange 245 Coto de Caza 23
  075 Irvine 16
  241 San Clemente 34
Placer 195 Auburn 53
Riverside 135 Blythe NE 25
  118 Cathedral City 0
  239 Hemet 18
  200 Indio 2 10
  208 La Quinta II 15
  238 Moreno Valley 0
  136 Oasis 9
  240 Perris 21
  151 Ripley 27
  062 Temecula 18
  237 Temecula East III 24
  218 Thermal South 24
  044 U.C. Riverside 19
  179 Winchester 28
Sacramento 131 Fair Oaks 49
  140 Twitchell Island 46
San Benito 126 San Benito 44
  143 San Juan Valley 44
San Bernardino 134 Barstow NE 0
  199 Big Bear Lake 59
  233 Joshua Tree 40
  192 Lake Arrowhead 46
  234 Newberry Springs II 36
  117 Victorville 4
San Diego 207 Borrego Springs 18
  153 Escondido SPV 12
  150 Miramar 21
  147 Otay Lake 23
  184 San Diego II 14
  173 Torrey Pines 20
San Joaquin 166 Lodi West 0
  070 Manteca 49
  167 Tracy 0
San Luis Obispo 163 Atascadero 45
  202 Nipomo 35
  052 San Luis Obispo 25
  160 San Luis Obispo West 33
Santa Barbara 088 Cuyama 47
  094 Goleta Foothills 0
  231 Lompoc 47
  107 Santa Barbara 19
  230 Santa Barbara II 0
  232 Santa Maria II 28
  064 Santa Ynez 27
  165 Sisquoc 34
Santa Clara 211 Gilroy 43
Santa Cruz 104 De Laveaga 45
  209 Watsonville West II 52
Shasta 043 McArthur 61
  224 Shasta College 46
Siskiyou 236 Macdoel II 61
  225 Scott Valley 58
  091 Tulelake FS 66
Solano 121 Dixon 47
  212 Hastings Tract East 48
  139 Winters 45
Sonoma 158 Bennett Valley 50
  144 Petaluma East 49
  083 Santa Rosa 48
  103 Windsor 47
Stanislaus 206 Denair 51
  071 Modesto 48
  194 Oakdale 51
  161 Patterson 0
Sutter 235 Verona 51
Tehama 008 Gerber 0
  222 Gerber South 50
Tulare 203 Alpaugh 0
  182 Delano 49
  086 Lindcove 16
  169 Porterville 42
Ventura 152 Camarillo 24
  217 Moorpark 14
  156 Oxnard 0
  198 Santa Paula 22
Yolo 155 Bryte 47
  006 Davis 46
  196 Esparto 0
  226 Woodland 45
Yuba 084 Browns Valley 50