Sonoma County Historical Growing Degree Days (T>50F)
Seasonal comparison of GDD accumulation from April 1st through yesterday (7/19)
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: 1282 1624 1475 1475 1519 1448 1151 1461 1415 1292 393 1412 1293
GDD's 2018: 1304 1627 1513 1514 1582 1496 1477 1495 1515 1307 1320 1436 1302
GDD's 2017: 1439 1701 1445 1600 1681 1581 1569 1571 1573 1413 1419 1510 1426
GDD's 2016: 1413 1710 1438 1562 -- 1524 1495 858 1554 1375 1473 1326 --
GDD's 2015: -- -- 1397 1463 -- 1422 1405 -- -- 1264 1333 -- --
GDD's 2014: -- -- 1563 1661 -- 1607 1595 -- -- 1445 1483 -- --
GDD's 2013: -- -- 1617 1666 -- 1607 1594 -- -- 1454 -- -- --
GDD's 2012: -- -- 1453 1494 -- 1466 1433 -- -- 1270 -- -- --
average 1360 1666 1488 1554 1594 1519 1465 1346 1514 1352 1237 1421 1340
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: 1191 1144 1099 1205 1007 1107 1215 1322 #N/A 1344 1192 1243 1231
GDD's 2018: 1206 1146 1109 1201 1012 1116 1256 1340 #N/A 1321 1202 1227 1178
GDD's 2017: 1336 1275 1204 1302 1091 1248 1409 1477 1469 1503 1226 -- 1331
GDD's 2016: 1326 1271 1178 1256 1009 1214 1356 1481 1442 -- 1289 -- 1323
GDD's 2015: -- -- 1123 1159 951 -- 1265 1437 1382 -- -- -- --
GDD's 2014: -- -- 1279 1293 1140 -- 1648 1425 1425 -- -- -- --
GDD's 2013: -- -- 1289 1331 1163 -- 1516 -- 1551 -- -- -- --
GDD's 2012: -- -- 1139 -- 1028 -- 1308 -- 1339 -- -- -- --
average 1265 1209 1178 1249 1050 1171 1372 1414 #N/A 1390 1227 1235 1265