Napa County Seasonal GDD

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

Daily Data | America/Los_Angeles
as of 5/9/25 1:31 AM PDT
Date St. Helena-North Oakville-NE (Ranch 88) Suscol Lower (Ranch 35) Carneros Lower (Ranch 81)
5/8/25 380 353 274 -
5/7/25 364 338 262 -
5/6/25 355 328 255 -
5/5/25 338 313 245 -
5/4/25 314 291 222 -
5/3/25 298 276 212 -
5/2/25 286 266 205 -
5/1/25 275 256 198 -
4/30/25 264 247 192 -
4/29/25 249 233 182 -
4/28/25 235 221 173 -
4/27/25 224 210 165 -
4/26/25 219 205 161 -
4/25/25 218 203 159 -
4/24/25 214 199 156 -
4/23/25 211 196 153 -
4/22/25 204 190 149 -
4/21/25 193 180 143 -
4/20/25 180 168 133 -
4/19/25 170 158 127 -
4/18/25 164 152 122 -
4/17/25 153 143 116 -
4/16/25 146 136 110 -
4/15/25 142 131 106 -
4/14/25 138 127 102 -
4/13/25 124 115 93 -
4/12/25 110 102 83 -
4/11/25 100 94 77 -
4/10/25 86 81 67 -
4/9/25 74 70 59 -
4/8/25 60 57 47 -
4/7/25 50 49 41 -
4/6/25 42 40 33 -
4/5/25 32 30 25 -
4/4/25 21 21 17 -
4/3/25 12 12 10 -
4/2/25 6 6 5 -
4/1/25 1 2 2 -