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Napa County Growing Degree Days
View Daily Biomet Summary on Forecast (Current) 2023 GDD 2022 GDD 2021 GDD 2020 GDD 2019 GDD

Napa County Seasonal GDD

(Data may contain errors, more accurate/complete data available on morning forecast)

Daily Data | America/Los_Angeles
as of 5/28/23 4:59 AM PDT
Date St. Helena-North Oakville-NE (Ranch 88) Suscol Lower (Ranch 35) Carneros Lower (Ranch 81)
5/27/23 566 507 323 398
5/26/23 554 497 322 390
5/25/23 545 488 321 383
5/24/23 536 479 320 377
5/23/23 526 470 318 370
5/22/23 515 460 317 363
5/21/23 498 445 314 352
5/20/23 482 432 312 342
5/19/23 470 422 311 334
5/18/23 455 409 309 325
5/17/23 440 398 308 316
5/16/23 423 384 299 308
5/15/23 404 368 287 296
5/14/23 388 354 276 285
5/13/23 373 340 266 274
5/12/23 353 323 250 259
5/11/23 338 310 240 249
5/10/23 327 300 233 241
5/9/23 319 292 228 235
5/8/23 310 284 221 228
5/7/23 303 277 216 222
5/6/23 297 271 210 216
5/5/23 293 266 205 212
5/4/23 290 262 201 208
5/3/23 286 258 197 204
5/2/23 282 254 193 201
5/1/23 280 252 192 199
4/30/23 277 249 190 197
4/29/23 268 240 184 190
4/28/23 255 230 177 183
4/27/23 238 215 166 172
4/26/23 218 196 151 157
4/25/23 200 181 137 144
4/24/23 184 166 127 134
4/23/23 170 155 118 124
4/22/23 154 143 109 115
4/21/23 135 128 98 102
4/20/23 119 113 86 90
4/19/23 109 104 79 82
4/18/23 103 98 75 78
4/17/23 100 95 72 75
4/16/23 96 91 70 72
4/15/23 90 86 66 68
4/14/23 84 80 62 65
4/13/23 77 74 58 60
4/12/23 69 67 53 55
4/11/23 64 61 49 50
4/10/23 53 51 41 43
4/9/23 42 40 33 34
4/8/23 30 30 24 25
4/7/23 24 24 19 20
4/6/23 22 21 16 17
4/5/23 18 17 13 14
4/4/23 14 13 10 11
4/3/23 10 10 8 9
4/2/23 8 7 6 7
4/1/23 4 4 4 4