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Napa County Growing Degree Days
View Daily Biomet Summary on Forecast (Current) 2025 GDD 2023 GDD 2022 GDD 2021 GDD 2020 GDD 2019 GDD

2025 GDD Napa

4/1/2025 - 11/15/2025

Daily Data | America/Los_Angeles
as of 5/24/25 11:35 PM PDT
Date Carneros Lower (Ranch 81) Oakville-NE (Ranch 88) Suscol Lower (Ranch 35) St. Helena-North
5/23/25 8.4 11.1 8.7 12.6
5/22/25 11.0 13.6 10.4 15.8
5/21/25 14.7 17.6 14.5 20.0
5/20/25 15.2 17.2 14.3 19.2
5/19/25 17.2 20.5 17.1 20.6
5/18/25 15.4 16.9 15.1 16.8
5/17/25 9.7 14.2 10.5 15.0
5/16/25 12.1 15.2 12.2 16.8
5/15/25 11.7 14.9 12.2 15.8
5/14/25 9.8 12.1 9.6 12.4
5/13/25 8.4 10.1 8.4 10.4
5/12/25 7.0 7.3 6.1 6.2
5/11/25 8.4 9.1 7.9 10.1
5/10/25 14.8 17.8 14.0 21.9
5/9/25 17.0 19.0 18.2 20.6
5/8/25 11.0 14.9 12.2 16.0
5/7/25 7.7 10.4 6.9 9.3
5/6/25 11.4 14.2 10.3 16.6
5/5/25 21.8 22.2 22.6 23.8
5/4/25 11.1 15.4 10.0 16.9
5/3/25 8.2 10.2 7.5 11.3
5/2/25 6.5 9.0 6.4 11.2
5/1/25 5.8 9.1 6.1 11.1
4/30/25 9.8 14.0 9.9 15.3
4/29/25 9.1 12.8 9.3 13.8
4/28/25 8.0 10.4 7.6 10.9
4/27/25 4.1 5.5 4.4 4.9
4/26/25 2.2 1.9 2.4 1.6
4/25/25 3.2 3.9 3.0 3.5
4/24/25 2.8 3.0 2.2 3.4
4/23/25 5.1 6.1 4.4 7.1
4/22/25 6.7 9.5 6.5 10.4
4/21/25 10.0 12.8 9.8 13.2
4/20/25 7.1 9.2 6.1 10.2
4/19/25 4.4 6.2 4.3 5.9
4/18/25 6.7 9.5 6.0 10.6
4/17/25 5.4 7.1 5.8 7.2
4/16/25 4.6 4.5 4.2 4.2
4/15/25 4.2 4.1 4.0 3.7
4/14/25 8.9 11.8 8.9 14.1
4/13/25 10.4 13.3 10.7 14.1
4/12/25 7.0 8.1 6.0 9.5
4/11/25 9.9 12.5 9.5 14.7
4/10/25 8.1 11.2 8.0 12.2
4/9/25 12.3 12.9 11.8 13.8
4/8/25 7.1 8.7 6.6 9.5
4/7/25 8.2 9.0 7.9 8.5
4/6/25 8.7 9.8 7.9 9.7
4/5/25 8.0 9.2 7.5 11.0
4/4/25 7.9 8.9 8.0 9.6
4/3/25 4.4 5.5 4.3 6.0
4/2/25 3.7 4.5 3.3 4.4
4/1/25 1.5 1.6 1.8 1.3