Napa Valley Vintages

1958 Napa Valley Vintage

Average and wet season, compared with 1991 to 2020. Rebuilding after Repeal. A small group of estates led the recovery. Nearest notable vintage: 1966.

Weather and season

Apr to Oct average temperature65°F
Estimated growing degree days3220
Frost days, Mar to Apr2
Days 90°F and up, Aug to Oct22
Winter rain21 in
Spring rain12.5 in
Harvest rain0.1 in

Station: south valley. Growing degree days are estimated from monthly means.

Explore 1958 on the interactive timeline