Napa County Historical Growing Degree Days (T>50ºF)
Seasonal comparison of GDD accumulation from April 1st through yesterday (11/16)
		Weeks Lake		Pope Valley South		Calistoga		St Helena North		Rutherford Hill		Rutherford North		Rutherford		Rutherford East		Chimney Rock		Napa East		Napa SW
GDD's 2021:		3807		4464		3558		3696		3462		3356		3427		3183		3014		3011		2778
GDD's 2020:		3898		4704		3915		3478		4036		3749		3859		3640		3449		3490		3252
GDD's 2019:		3633		4150		3727		3652		3642		3537		3591		3390		3260		3337		2951
GDD's 2018:		3604		4204		3530		3484		3395		3268		3358		3152		3007		3012		2667
GDD's 2017:		3725		4141		3679		3689		3724		3635		3449		3478		3344		-		2949
average		3733		4333		3682		3600		3652		3509		3537		3369		3215		3212		2919