| Precipitation (July 1 to date) | 2026 | 2025 | 2024 | 2023 | 2022 | 2021 |
|---|---|---|---|---|---|---|
| Pope Valley (Weeks Lake) | 0.03 | 0 | 0.12 | 0 | 0.03 | 0 |
| St. Helena-North | 0.11 | 0 | 0.04 | 0.1 | 0.1 | 0 |
| Stags Leap Dist (Chimney Rock) | 0.1 | 0 | 0 | 0 | 0.08 | 0 |
| Suscol Lower (Ranch 35) | 0.15 | 0 | 0.01 | 0 | 0.02 | 0 |
| ETo (Jan 1 to date) | 2026 | 2025 | 2024 | 2023 | 2022 | 2021 |
|---|---|---|---|---|---|---|
| Pope Valley (Weeks Lake) | 37.34 | 38.683 | 38.106 | 36.408 | 41.358 | 42.218 |
| St. Helena-North | 34.022 | 32.939 | 32.756 | 31.958 | 35.831 | 35.846 |
| Stags Leap Dist (Chimney Rock) | 33.95 | 34.968 | 35.916 | 33.507 | 38.713 | 37.925 |
| Suscol Lower (Ranch 35) | 35.203 | 35.21 | 35.504 | 28.984 | 39.214 | 37.905 |
| Powdery Mildew Points (by date) | 2026 | 2025 | 2024 | 2023 | 2022 | 2021 |
|---|---|---|---|---|---|---|
| Pope Valley (Weeks Lake) | 60 | 20 | 0 | 40 | 0 | 0 |
| St. Helena-North | 60 | 20 | 0 | 10 | 10 | 0 |
| Stags Leap Dist (Chimney Rock) | 100 | 100 | 30 | 100 | 20 | 70 |
| Suscol Lower (Ranch 35) | 100 | 100 | 60 | 100 | 60 | 50 |
| Growing Degree Days (April 1 to date) | 2026 | 2025 | 2024 | 2023 | 2022 | 2021 |
|---|---|---|---|---|---|---|
| Pope Valley (Weeks Lake) | 2628.1 | 2746.8 | 3007.9 | 2660.5 | 2963.2 | 3018.6 |
| St. Helena-North | 2678.9 | 2742.9 | 2997.1 | 2566.2 | 2935.3 | 2841.7 |
| Stags Leap Dist (Chimney Rock) | 2243.1 | 2206.5 | 2437.1 | 2094.7 | 2488.5 | 2266 |
| Suscol Lower (Ranch 35) | 1994.5 | 1950.6 | 2175.4 | 1857 | 2242.8 | 1957.9 |