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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 Hours - Select Station from List

County Station Hours < 45°F Hours >32° and <45°F
Alameda 191 Pleasanton 612 591
  171 Union City 402 392
Amador 227 Plymouth 762 728
Butte 244 Biggs 649 640
  012 Durham 750 713
Colusa 250 Williams 674 661
Contra Costa 047 Brentwood 587 578
  170 Concord 568 549
  213 El Cerrito 295 295
  178 Moraga 707 671
El Dorado 013 Camino 731 663
  228 Diamond Springs 638 632
Fresno 205 Coalinga 508 506
  007 Firebaugh/Telles 627 602
  190 Five Points South West 0 0
  002 FivePoints/WSFS USDA 706 667
  080 Fresno State 704 680
  142 Orange Cove 594 586
  124 Panoche 669 649
  039 Parlier 707 692
  105 Westlands 742 677
Imperial 041 Calipatria/Mulberry 314 291
  087 Meloland 225 220
  175 Palo Verde II 389 345
  128 Salton Sea East 0 0
  127 Salton Sea West 0 0
  068 Seeley 217 196
  201 UC-Andrade 0 0
  186 UC-San Luis 0 0
  181 Westmorland North 252 239
Inyo 035 Bishop 1330 642
  183 Owens Lake North 1177 795
  189 Owens Lake South 1276 700
Kern 125 Arvin-Edison 592 588
  146 Belridge 652 621
  054 Blackwells Corner 0 0
  005 Shafter/USDA 629 625
Kings 021 Kettleman 0 0
  015 Stratford 726 682
Lassen 057 Buntingville 0 0
Los Angeles 216 Arleta 212 212
  215 Chatsworth 148 148
  133 Glendale 0 0
  174 Long Beach 238 238
  159 Monrovia 193 193
  197 Palmdale 895 703
  220 Palmdale Central 681 599
  078 Pomona 269 269
  204 Santa Clarita 244 244
  099 Santa Monica 43 43
  219 West Hills 201 201
Madera 145 Madera 0 0
  188 Madera II 0 0
Marin 187 Black Point 614 604
  157 Point San Pedro 463 461
Mendocino 085 Hopland FS 0 0
  106 Sanel Valley 787 722
Merced 092 Kesterson 656 627
  056 Los Banos 670 639
  148 Merced 829 767
Modoc 090 Alturas 1647 753
Monterey 114 Arroyo Seco 406 406
  210 Carmel 327 327
  019 Castroville 0 0
  113 King City-Oasis Rd. 590 561
  193 Pacific Grove 149 149
  129 Pajaro 314 314
  116 Salinas North 240 240
  214 Salinas South II 325 325
Napa 109 Carneros 630 613
  077 Oakville 613 593
Orange 245 Coto de Caza 202 202
  075 Irvine 97 97
  241 San Clemente 196 196
Placer 195 Auburn 565 558
Riverside 135 Blythe NE 400 374
  118 Cathedral City 0 0
  239 Hemet 214 214
  200 Indio 2 196 194
  208 La Quinta II 126 126
  238 Moreno Valley 0 0
  136 Oasis 159 159
  240 Perris 401 393
  151 Ripley 340 323
  062 Temecula 81 81
  237 Temecula East III 208 208
  218 Thermal South 299 279
  044 U.C. Riverside 209 209
  179 Winchester 486 458
Sacramento 131 Fair Oaks 610 604
  140 Twitchell Island 553 552
San Benito 126 San Benito 500 486
  143 San Juan Valley 547 523
San Bernardino 134 Barstow NE 0 0
  199 Big Bear Lake 1164 622
  233 Joshua Tree 597 478
  192 Lake Arrowhead 1413 860
  234 Newberry Springs II 0 0
  117 Victorville 745 650
San Diego 207 Borrego Springs 310 275
  153 Escondido SPV 304 288
  150 Miramar 130 130
  147 Otay Lake 140 140
  184 San Diego II 44 44
  173 Torrey Pines 12 12
San Joaquin 166 Lodi West 0 0
  070 Manteca 663 646
  167 Tracy 0 0
San Luis Obispo 163 Atascadero 761 649
  202 Nipomo 180 180
  052 San Luis Obispo 236 236
  160 San Luis Obispo West 308 308
Santa Barbara 088 Cuyama 867 810
  094 Goleta Foothills 0 0
  231 Lompoc 523 511
  107 Santa Barbara 27 27
  230 Santa Barbara II 0 0
  232 Santa Maria II 273 273
  064 Santa Ynez 587 524
  165 Sisquoc 613 550
Santa Clara 211 Gilroy 508 485
Santa Cruz 104 De Laveaga 346 346
  209 Watsonville West II 211 211
Shasta 043 McArthur 475 335
  224 Shasta College 852 746
Siskiyou 236 Macdoel II 1690 700
  225 Scott Valley 1616 807
  091 Tulelake FS 1689 763
Solano 121 Dixon 0 0
  212 Hastings Tract East 726 707
  139 Winters 673 649
Sonoma 158 Bennett Valley 729 686
  144 Petaluma East 675 644
  083 Santa Rosa 690 653
  103 Windsor 702 666
Stanislaus 206 Denair 670 665
  071 Modesto 692 665
  194 Oakdale 672 664
  161 Patterson 0 0
Sutter 235 Verona 767 740
Tehama 008 Gerber 0 0
  222 Gerber South 759 716
Tulare 203 Alpaugh 0 0
  182 Delano 699 682
  086 Lindcove 0 0
  169 Porterville 720 691
Ventura 152 Camarillo 228 228
  217 Moorpark 140 140
  156 Oxnard 0 0
  198 Santa Paula 289 289
Yolo 155 Bryte 537 536
  006 Davis 626 622
  196 Esparto 0 0
  226 Woodland 622 616
Yuba 084 Browns Valley 521 521