2025 Napa Valley Vintage
Average and normal season, compared with 1991 to 2020. Modern Napa. Detailed records exist, though not every year is curated here. Nearest notable vintage: 2023.
Weather and season
| Apr to Oct average temperature | 65.8°F |
|---|---|
| Estimated growing degree days | 3390 |
| Frost days, Mar to Apr | 0 |
| Days 90°F and up, Aug to Oct | 17 |
| Days 95° and up, jun to oct | 6 |
| Days 100° and up | 0 |
| Hottest day | 98°F, Sep 1 |
| Winter rain | 18.1 in |
| Spring rain | 2.9 in |
| Harvest rain | 1.4 in |
Station: south valley. Growing degree days are estimated from monthly means.
Explore 2025 on the interactive timeline