Napa County Historical Growing Degree Days (T>50F)
Seasonal comparison of GDD accumulation from April 1st through yesterday (11/14)
Weeks Lake Pope Valley South Calistoga St Helena North Rutherford Hill Rutherford North Rutherford Rutherford East Chimney Rock Napa East Napa SW
GDD's 2019: 3627 4142 3720 3644 3633 3528 3582 3382 3252 3329 2944
GDD's 2018: 3599 4199 3525 3479 3389 3263 3353 3148 3002 3008 2663
average 3613 4170 3623 3561 3511 3396 3468 3265 3127 3169 2804