Sonoma County Historical Growing Degree Days (T>50F)
Seasonal comparison of GDD accumulation from April 1st through yesterday (9/14)
Rockpile Cloverdale East Geyersville West Geyersville Geyersville South Alexander Valley Lytton Dry Creek Valley Healdsburg South Forestville 235' Forestville 65' Windsor NW Windsor South
GDD's 2019: 2483 2912 2648 2636 2744 2588 2279 2598 2543 2321 597 2520 2303
GDD's 2018: 2460 2719 2508 2496 2608 2475 2421 2422 2468 2119 2158 2334 2109
GDD's 2017: 2817 2968 2452 2732 2859 2708 2677 2564 2662 2399 2414 2574 2405
GDD's 2016: 2537 2790 2305 2515 -- 2451 2395 1746 2465 2166 2284 2076 --
GDD's 2015: -- -- 2439 2571 -- 2499 2462 -- -- 2274 2423 -- --
GDD's 2014: -- -- 2532 2655 -- 2601 2557 -- -- 2312 2348 -- --
GDD's 2013: -- -- 2585 2665 -- 2576 2535 -- -- 2295 -- -- --
GDD's 2012: -- -- 2366 2406 -- 2384 2332 -- -- 2035 -- -- --
average 2574 2847 2479 2585 2737 2535 2457 2332 2535 2240 2037 2376 2273
Fulton SW Denner Ranch Sebastopol Graton West Graton South L. Bennett Valley Kenwood Sonoma Valley Sonoma SW Sonoma SE Carneros Petaluma East South Lakeside
GDD's 2019: 2173 2051 1984 2136 1818 2041 2208 2395 #N/A 2422 2161 2236 2194
GDD's 2018: 1976 1864 1831 1949 1658 1893 2132 2227 #N/A 2193 1972 2040 1963
GDD's 2017: 2272 2161 2093 2216 1883 2193 2465 2557 2430 2649 2198 -- 2322
GDD's 2016: 2076 1950 1866 1966 1559 1959 2201 2367 2326 -- 2036 -- 2102
GDD's 2015: -- -- 2044 2080 1760 -- 2231 2533 2426 -- -- -- --
GDD's 2014: -- -- 2081 2077 1836 -- 2699 2363 2362 -- -- -- --
GDD's 2013: -- -- 2054 2086 1831 -- 2454 -- 2485 -- -- -- --
GDD's 2012: -- -- 1828 -- 1623 -- 2215 -- 2248 -- -- -- --
average 2124 2006 1972 2073 1746 2022 2326 2407 #N/A 2421 2092 2138 2145