Hero Image

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 846 825
  171 Union City 786 773
Amador 227 Plymouth 1196 1156
Butte 244 Biggs 891 885
  012 Durham 1010 971
Colusa 250 Williams 980 963
Contra Costa 047 Brentwood 376 376
  170 Concord 1285 1107
  213 El Cerrito 266 266
  178 Moraga 1028 957
El Dorado 013 Camino 899 888
  228 Diamond Springs 879 875
Fresno 205 Coalinga 687 681
  007 Firebaugh/Telles 825 808
  190 Five Points South West 289 287
  002 FivePoints/WSFS USDA 1002 957
  080 Fresno State 1049 976
  142 Orange Cove 960 935
  124 Panoche 1166 993
  039 Parlier 1030 1002
  105 Westlands 1017 863
Imperial 041 Calipatria/Mulberry 541 534
  087 Meloland 486 480
  175 Palo Verde II 725 695
  128 Salton Sea East 0 0
  127 Salton Sea West 0 0
  068 Seeley 456 453
  201 UC-Andrade 0 0
  186 UC-San Luis 0 0
  181 Westmorland North 657 530
Inyo 035 Bishop 1808 1036
  183 Owens Lake North 1736 1427
  189 Owens Lake South 1873 1209
Kern 125 Arvin-Edison 827 798
  146 Belridge 977 849
  054 Blackwells Corner 1133 1064
  005 Shafter/USDA 880 859
Kings 021 Kettleman 0 0
  015 Stratford 934 913
Lassen 057 Buntingville 2258 1089
Los Angeles 216 Arleta 576 480
  215 Chatsworth 576 480
  133 Glendale 0 0
  174 Long Beach 416 416
  159 Monrovia 237 237
  197 Palmdale 1341 1101
  220 Palmdale Central 1240 1081
  078 Pomona 395 395
  204 Santa Clarita 480 480
  099 Santa Monica 24 24
  219 West Hills 120 24
Madera 145 Madera 0 0
  188 Madera II 0 0
Marin 187 Black Point 839 787
  157 Point San Pedro 692 685
Mendocino 085 Hopland FS 0 0
  106 Sanel Valley 1113 971
Merced 092 Kesterson 1134 1033
  056 Los Banos 1126 1008
  148 Merced 1183 1091
Modoc 090 Alturas 2414 1182
Monterey 114 Arroyo Seco 779 766
  210 Carmel 666 661
  019 Castroville 31 31
  113 King City-Oasis Rd. 899 875
  193 Pacific Grove 132 132
  129 Pajaro 552 552
  116 Salinas North 359 358
  214 Salinas South II 477 476
Napa 109 Carneros 965 839
  077 Oakville 923 897
Orange 245 Coto de Caza 396 396
  075 Irvine 133 133
  241 San Clemente 350 350
Placer 195 Auburn 678 674
Riverside 135 Blythe NE 610 601
  118 Cathedral City 0 0
  239 Hemet 647 630
  200 Indio 2 279 279
  208 La Quinta II 849 724
  238 Moreno Valley 0 0
  136 Oasis 10 10
  240 Perris 1057 988
  151 Ripley 582 575
  062 Temecula 161 161
  237 Temecula East III 386 380
  218 Thermal South 895 755
  044 U.C. Riverside 299 299
  179 Winchester 915 861
Sacramento 131 Fair Oaks 685 676
  140 Twitchell Island 699 699
San Benito 126 San Benito 834 811
  143 San Juan Valley 983 949
San Bernardino 134 Barstow NE 0 0
  199 Big Bear Lake 1982 1122
  233 Joshua Tree 1156 1024
  192 Lake Arrowhead 2125 1135
  234 Newberry Springs II 1116 1041
  117 Victorville 1017 867
San Diego 207 Borrego Springs 23 23
  153 Escondido SPV 459 453
  150 Miramar 216 216
  147 Otay Lake 242 242
  184 San Diego II 51 51
  173 Torrey Pines 62 28
San Joaquin 166 Lodi West 0 0
  070 Manteca 1016 988
  167 Tracy 0 0
San Luis Obispo 163 Atascadero 1139 1002
  202 Nipomo 298 298
  052 San Luis Obispo 367 367
  160 San Luis Obispo West 531 525
Santa Barbara 088 Cuyama 1404 1265
  094 Goleta Foothills 0 0
  231 Lompoc 368 355
  107 Santa Barbara 67 67
  230 Santa Barbara II 0 0
  232 Santa Maria II 368 363
  064 Santa Ynez 957 849
  165 Sisquoc 632 627
Santa Clara 211 Gilroy 930 897
Santa Cruz 104 De Laveaga 567 567
  209 Watsonville West II 359 359
Shasta 043 McArthur 2337 1389
  224 Shasta College 1094 993
Siskiyou 236 Macdoel II 2397 1044
  225 Scott Valley 2233 1286
  091 Tulelake FS 2446 1210
Solano 121 Dixon 883 867
  212 Hastings Tract East 1038 1018
  139 Winters 797 787
Sonoma 158 Bennett Valley 1083 997
  144 Petaluma East 905 863
  083 Santa Rosa 1026 929
  103 Windsor 966 911
Stanislaus 206 Denair 981 967
  071 Modesto 970 953
  194 Oakdale 864 849
  161 Patterson 0 0
Sutter 235 Verona 1066 1045
Tehama 008 Gerber 0 0
  222 Gerber South 999 966
Tulare 203 Alpaugh 0 0
  182 Delano 1010 986
  086 Lindcove 1166 1140
  169 Porterville 1524 1272
Ventura 152 Camarillo 342 342
  217 Moorpark 248 248
  156 Oxnard 0 0
  198 Santa Paula 398 398
Yolo 155 Bryte 634 634
  006 Davis 760 755
  196 Esparto 0 0
  226 Woodland 759 754
Yuba 084 Browns Valley 535 534