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Napa County Growing Degree Days
View Daily Biomet Summary on Forecast (Current) 2025 GDD 2024 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 10/18/25 6:11 PM PDT
Date Carneros Lower (Ranch 81) Oakville-NE (Ranch 88) Suscol Lower (Ranch 35) St. Helena-North
10/17/25 9.4 10.2 - 10.5
10/16/25 6.6 7.9 - 8.2
10/15/25 5.6 5.8 - 6.7
10/14/25 3.2 3.1 - 2.7
10/13/25 3.8 3.4 - 3.5
10/12/25 10.6 10.9 9.8 11.6
10/11/25 8.6 8.0 8.5 9.1
10/10/25 10.4 8.2 9.2 7.3
10/9/25 10.6 7.8 11.0 9.2
10/8/25 9.8 9.2 8.6 11.0
10/7/25 16.7 19.3 17.8 19.6
10/6/25 15.6 16.7 17.6 18.1
10/5/25 13.2 13.9 14.4 14.9
10/4/25 11.0 12.4 11.7 13.3
10/3/25 11.1 11.8 12.2 12.6
10/2/25 13.5 13.9 14.4 13.2
10/1/25 13.9 13.7 14.6 11.4
9/30/25 15.2 15.0 15.0 13.5
9/29/25 15.6 15.9 15.5 14.6
9/28/25 14.6 15.1 14.4 15.9
9/27/25 13.2 12.4 13.2 15.2
9/26/25 13.0 15.2 13.4 17.5
9/25/25 15.7 19.0 16.0 21.1
9/24/25 18.0 17.9 17.6 19.1
9/23/25 24.5 26.6 25.4 28.8
9/22/25 19.2 20.9 20.1 23.6
9/21/25 14.5 17.4 15.8 20.4
9/20/25 17.3 19.2 16.7 21.1
9/19/25 16.6 19.0 17.2 18.2
9/18/25 16.8 18.9 16.6 21.5
9/17/25 21.9 23.0 23.1 26.4
9/16/25 21.0 21.6 21.8 24.4
9/15/25 22.2 22.2 22.8 24.1
9/14/25 16.0 17.6 16.0 19.2
9/13/25 13.2 15.3 13.6 16.6
9/12/25 12.6 15.1 14.3 17.0
9/11/25 16.3 18.1 16.5 19.1
9/10/25 15.4 17.0 15.3 17.3
9/9/25 16.4 16.9 17.1 16.5
9/8/25 16.8 16.4 15.9 17.2
9/7/25 17.0 16.7 16.0 18.7
9/6/25 15.6 15.1 15.1 16.0
9/5/25 14.9 16.8 14.4 18.2
9/4/25 13.5 13.8 12.3 16.2
9/3/25 16.9 18.8 15.6 22.4
9/2/25 16.9 19.2 16.8 22.4
9/1/25 22.4 25.6 23.1 28.5
8/31/25 23.0 24.7 23.9 29.6
8/30/25 22.8 23.4 23.7 26.8
8/29/25 17.2 18.0 15.7 21.8
8/28/25 16.0 17.8 15.4 20.4
8/27/25 16.8 18.2 15.9 20.7
8/26/25 17.3 19.8 16.3 22.4
8/25/25 15.0 18.5 14.7 21.5
8/24/25 14.7 18.0 13.8 21.1
8/23/25 15.1 19.8 14.8 22.4
8/22/25 14.7 20.7 16.2 24.1
8/21/25 22.5 25.7 23.1 28.8
8/20/25 19.5 22.7 21.0 26.4
8/19/25 14.9 18.1 15.8 20.2
8/18/25 16.1 16.6 14.5 19.1
8/17/25 15.6 16.3 14.4 20.1
8/16/25 18.9 21.0 19.0 23.3
8/15/25 17.7 20.4 18.2 23.9
8/14/25 14.7 17.3 14.5 19.2
8/13/25 15.2 18.8 14.6 20.3
8/12/25 15.8 17.5 14.5 21.0
8/11/25 16.0 18.0 14.3 22.4
8/10/25 16.2 19.9 15.5 24.4
8/9/25 18.4 23.1 18.5 27.6
8/8/25 20.8 25.2 20.7 28.0
8/7/25 17.2 21.6 18.8 25.2
8/6/25 20.2 22.8 21.2 26.0
8/5/25 13.4 16.5 13.4 18.4
8/4/25 17.6 17.8 16.2 22.4
8/3/25 14.6 18.6 14.5 21.2
8/2/25 11.4 17.0 13.3 19.2
8/1/25 12.9 17.0 13.3 18.5
7/31/25 15.6 19.2 15.7 20.5
7/30/25 11.3 13.6 11.8 15.3
7/29/25 13.9 17.3 14.9 21.3
7/28/25 14.6 17.4 14.5 20.6
7/27/25 13.4 16.0 12.3 17.8
7/26/25 13.3 15.7 12.4 17.2
7/25/25 12.6 15.3 11.9 17.6
7/24/25 13.7 16.4 12.8 18.4
7/23/25 13.3 16.4 12.4 16.5
7/22/25 13.4 14.0 12.5 15.0
7/21/25 13.4 15.8 13.4 17.6
7/20/25 12.0 14.6 11.5 17.1
7/19/25 12.9 15.1 11.9 18.8
7/18/25 13.0 15.6 12.1 19.6
7/17/25 12.6 16.6 12.3 18.0
7/16/25 13.4 15.6 12.6 16.2
7/15/25 12.1 14.8 11.3 18.9
7/14/25 15.0 19.2 13.9 22.8
7/13/25 14.2 17.4 13.1 22.1
7/12/25 13.2 18.0 13.6 21.0
7/11/25 15.9 20.9 16.1 24.2
7/10/25 17.6 22.6 18.1 26.4
7/9/25 16.1 18.8 15.1 21.8
7/8/25 13.8 15.5 12.6 17.9
7/7/25 10.7 14.0 10.3 17.4
7/6/25 11.7 16.8 12.9 19.1
7/5/25 10.8 15.2 11.8 17.0
7/4/25 13.1 14.4 11.8 17.3
7/3/25 11.6 14.6 11.0 16.2
7/2/25 12.0 16.7 12.4 19.3
7/1/25 13.0 17.2 12.9 21.0
6/30/25 13.6 18.9 13.8 22.9
6/29/25 15.3 20.8 16.2 25.5
6/28/25 18.5 21.6 17.7 25.7
6/27/25 16.0 20.5 16.2 24.0
6/26/25 13.0 16.4 13.6 19.0
6/25/25 10.7 14.0 10.2 15.6
6/24/25 9.5 11.7 9.0 14.2
6/23/25 12.7 16.3 12.8 19.3
6/22/25 14.9 17.7 15.1 18.7
6/21/25 15.6 15.7 13.6 16.4
6/20/25 12.6 14.2 12.3 15.5
6/19/25 12.7 14.5 12.8 20.6
6/18/25 16.5 19.3 16.6 23.8
6/17/25 15.8 17.7 15.2 21.4
6/16/25 10.6 12.9 10.0 15.6
6/15/25 10.5 14.6 11.1 17.3
6/14/25 9.6 13.2 10.3 14.7
6/13/25 9.8 12.4 9.5 14.0
6/12/25 9.3 12.4 9.4 14.5
6/11/25 9.5 12.4 9.2 15.2
6/10/25 10.0 13.4 9.6 16.4
6/9/25 11.8 14.6 10.6 17.7
6/8/25 12.0 14.7 10.4 18.6
6/7/25 11.5 14.2 10.3 18.7
6/6/25 12.8 16.0 11.8 18.5
6/5/25 11.8 13.7 9.9 14.4
6/4/25 12.0 14.7 10.9 17.8
6/3/25 11.4 15.1 10.8 17.2
6/2/25 11.6 14.3 11.8 14.9
6/1/25 8.9 12.0 9.2 14.2
5/31/25 16.7 21.8 18.0 25.8
5/30/25 19.8 24.7 20.8 27.5
5/29/25 15.6 18.1 14.9 20.8
5/28/25 9.6 12.5 9.3 15.8
5/27/25 9.9 14.8 10.8 16.0
5/26/25 11.8 14.2 11.8 16.3
5/25/25 8.8 11.2 8.2 12.9
5/24/25 7.7 10.9 8.5 12.8
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