Chill 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

View Station Map

Cumulative Chilling Hours - Select Station from List

County	Station	Hours < 45°F	Hours >32° and <45°F
Alameda	191 Pleasanton	144	135
	171 Union City	125	125
Amador	227 Plymouth	111	111
Butte	244 Biggs	144	140
	012 Durham	167	140
Colusa	250 Williams	122	105
Contra Costa	047 Brentwood	112	112
	170 Concord	132	132
	213 El Cerrito	0	0
	178 Moraga	184	152
El Dorado	013 Camino	0	0
	228 Diamond Springs	0	0
Fresno	205 Coalinga	62	62
	007 Firebaugh/Telles	108	108
	190 Five Points South West	115	113
	002 FivePoints/WSFS USDA	141	137
	080 Fresno State	133	133
	142 Orange Cove	101	101
	124 Panoche	138	131
	039 Parlier	136	134
	105 Westlands	129	122
Imperial	041 Calipatria/Mulberry	41	41
	087 Meloland	35	24
	175 Palo Verde II	147	75
	128 Salton Sea East	0	0
	127 Salton Sea West	0	0
	068 Seeley	39	39
	201 UC-Andrade	0	0
	186 UC-San Luis	0	0
	181 Westmorland North	36	36
Inyo	035 Bishop	272	105
	183 Owens Lake North	159	126
	189 Owens Lake South	210	126
Kern	125 Arvin-Edison	96	96
	146 Belridge	124	122
	054 Blackwells Corner	112	112
	005 Shafter/USDA	144	137
Kings	021 Kettleman	0	0
	015 Stratford	123	122
Lassen	057 Buntingville	295	117
Los Angeles	216 Arleta	2	2
	215 Chatsworth	0	0
	133 Glendale	0	0
	174 Long Beach	0	0
	159 Monrovia	94	22
	197 Palmdale	149	115
	220 Palmdale Central	95	86
	078 Pomona	22	22
	204 Santa Clarita	7	7
	099 Santa Monica	0	0
	219 West Hills	5	5
Madera	145 Madera	0	0
	188 Madera II	0	0
Marin	187 Black Point	185	140
	157 Point San Pedro	148	148
Mendocino	085 Hopland FS	0	0
	106 Sanel Valley	0	0
Merced	092 Kesterson	154	130
	056 Los Banos	140	127
	148 Merced	224	140
Modoc	090 Alturas	296	82
Monterey	114 Arroyo Seco	129	128
	210 Carmel	20	19
	019 Castroville	100	100
	113 King City-Oasis Rd.	135	131
	193 Pacific Grove	4	4
	129 Pajaro	127	127
	116 Salinas North	58	58
	214 Salinas South II	34	34
Napa	109 Carneros	180	131
	077 Oakville	147	127
Orange	245 Coto de Caza	6	6
	075 Irvine	0	0
	241 San Clemente	7	7
Placer	195 Auburn	288	0
Riverside	135 Blythe NE	81	81
	118 Cathedral City	0	0
	239 Hemet	31	31
	200 Indio 2	15	15
	208 La Quinta II	16	16
	238 Moreno Valley	0	0
	136 Oasis	4	4
	240 Perris	53	51
	151 Ripley	71	71
	062 Temecula	0	0
	237 Temecula East III	0	0
	218 Thermal South	58	58
	044 U.C. Riverside	1	1
	179 Winchester	79	77
Sacramento	131 Fair Oaks	132	132
	140 Twitchell Island	136	131
San Benito	126 San Benito	111	111
	143 San Juan Valley	139	139
San Bernardino	134 Barstow NE	0	0
	199 Big Bear Lake	228	140
	233 Joshua Tree	97	89
	192 Lake Arrowhead	245	185
	234 Newberry Springs II	103	91
	117 Victorville	104	95
San Diego	207 Borrego Springs	61	61
	153 Escondido SPV	20	20
	150 Miramar	1	1
	147 Otay Lake	0	0
	184 San Diego II	48	1
	173 Torrey Pines	73	1
San Joaquin	166 Lodi West	0	0
	070 Manteca	160	115
	167 Tracy	0	0
San Luis Obispo	163 Atascadero	163	115
	202 Nipomo	7	7
	052 San Luis Obispo	27	27
	160 San Luis Obispo West	40	40
Santa Barbara	088 Cuyama	154	134
	094 Goleta Foothills	0	0
	231 Lompoc	90	90
	107 Santa Barbara	0	0
	230 Santa Barbara II	0	0
	232 Santa Maria II	25	25
	064 Santa Ynez	133	109
	165 Sisquoc	43	43
Santa Clara	211 Gilroy	131	124
Santa Cruz	104 De Laveaga	23	23
	209 Watsonville West II	11	11
Shasta	043 McArthur	293	122
	224 Shasta College	95	60
Siskiyou	236 Macdoel II	301	71
	225 Scott Valley	297	97
	091 Tulelake FS	302	100
Solano	121 Dixon	122	117
	212 Hastings Tract East	143	113
	139 Winters	113	101
Sonoma	158 Bennett Valley	173	146
	144 Petaluma East	178	145
	083 Santa Rosa	208	134
	103 Windsor	194	140
Stanislaus	206 Denair	143	135
	071 Modesto	149	120
	194 Oakdale	153	152
	161 Patterson	0	0
Sutter	235 Verona	165	127
Tehama	008 Gerber	0	0
	222 Gerber South	125	115
Tulare	203 Alpaugh	0	0
	182 Delano	119	119
	086 Lindcove	105	105
	169 Porterville	171	150
Ventura	152 Camarillo	4	4
	217 Moorpark	0	0
	156 Oxnard	0	0
	198 Santa Paula	11	11
Yolo	155 Bryte	111	111
	006 Davis	116	113
	196 Esparto	0	0
	226 Woodland	103	103
Yuba	084 Browns Valley	11	11