| Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | Daily Max RH (%) | Daily Min RH (%) | Wind Spd (mph) | Daily Max Wind (mph) | Time of Max Wind | Max Wind Dir (°) | Daily Rain (In) | Season Precip (In) | Daily ETo (in) | Daily Solar Rad (Cal/cm2) | Powdery Mildew Stress (pts) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Montesol | 5/17/26 | 67.8 8.6 | 1525 | 41.1 4.9 | 0546 | - | - | - | - | - | - | - | 0.00 | 50.09 | - | - | 90 10 |
| Pope Valley (Weeks Lake) | 5/17/26 | 72.3 9.1 | 1513 | 43.0 6.0 | 0616 | 28.5 8.2 | 86 21 | 12 4 | 5.5 | 29.4 13.2 | 1400 | SW | 224 | 0.00 | 26.24 | 0.241 0.016 | 640 14 | 90 10 |
| Dollarhide Base | 5/17/26 | 73.9 9.0 | 1642 | 49.8 5.4 | 0421 | 33.3 8.1 | 77 21 | 16 7 | 8.6 | 43.3 22.1 | 1528 | NNW | 344 | 0.00 | 23.14 | 0.287 0.012 | 731 18 | 100 0 |
| Dollarhide 1AS Remote | 5/17/26 | 74.6 8.9 | 1642 | 41.0 6.3 | 0603 | 33.3 9.6 | 94 8 | 15 6 | 6.5 | 35.4 20.5 | 1533 | NNE | 15 | - | - | - | - | 100 0 |
| Dollarhide 18A Remote | 5/17/26 | 75.1 10.3 | 1710 | 39.0 7.5 | 0550 | 33.6 8.6 | 96 12 | 15 6 | - | - | - | - | - | - | - | - | 100 10 |
| Angwin | 5/17/26 | 64.2 9.0 | 1659 | 50.9 0.8 | 0616 | 24.8 9.3 | 56 3 | 15 3 | 13.1 | 38.3 13.6 | 1557 | NNW | 331 | 0.01 | 45.12 | 0.163 0.089 | 0 0 | 80 10 |
| Lower Angwin (Pioneer) | 5/17/26 | 67.3 7.7 | 1651 | 51.2 5.6 | 0114 | - | - | - | 6.2 | 32.7 13.9 | 1557 | NNE | 17 | - | - | - | - | 80 10 |
| Deer Park | 5/17/26 | 73.3 6.3 | 1608 | 48.6 2.4 | 0652 | 29.1 10.3 | 67 4 | 12 13 | 6.6 | 38.0 17.3 | 1302 | N | 0 | 0.00 | 28.72 | 0.222 0.012 | 496 15 | 100 0 |
| Lower Chiles Valley (Brown) | 5/17/26 | 71.5 9.9 | 1712 | 42.3 4.0 | 0543 | 30.6 9.4 | 91 2 | 12 6 | 6.2 | 30.0 12.7 | 1702 | N | 0 | 0.00 | 25.89 | 0.254 0.026 | 703 21 | 90 10 |
| Moss Creek Vineyard/Reservior | 5/17/26 | 71.4 12.1 | 1415 | 48.4 2.2 | 0551 | 32.3 9.6 | 91 2 | 11 6 | - | - | - | - | 0.00 | 27.05 | - | - | 20 10 |
| Max | 75.1 | - | 51.2 | - | 33.6 | 96 | 16 | 13.1 | 43.3 | - | - | 0.01 | 50.09 | 0.287 | 731 | - | |
| Avg | - | - | - | - | 30.7 | - | - | 7.5 | - | - | - | - | - | - | - | - | |
| Min | 64.2 | - | 39.0 | - | 24.8 | 56 | 11 | 5.5 | 29.4 | - | - | 0.00 | 23.14 | 0.163 | 0 | - |
| Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | Daily Max RH (%) | Daily Min RH (%) | Wind Spd (mph) | Daily Max Wind (mph) | Time of Max Wind | Max Wind Dir (°) | Daily Rain (In) | Season Precip (In) | Daily ETo (in) | Daily Solar Rad (Cal/cm2) | Powdery Mildew Stress (pts) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calistoga-North | 5/17/26 | 77.0 6.7 | 1151 | 44.5 3.9 | 0609 | 34.3 8.8 | 86 10 | 15 11 | - | - | - | - | 0.00 | 32.79 | - | - | 90 20 |
| Diamond Mtn (Schramsberg) | 5/17/26 | 73.4 6.7 | 1547 | 45.4 3.9 | 0505 | 30.4 10.4 | 78 7 | 12 14 | - | - | - | - | 0.00 | 31.20 | - | - | 100 0 |
| Diamond Mtn (McEachran) | 5/17/26 | 73.8 5.0 | 1651 | 46.2 6.0 | 0620 | 28.6 10.7 | 82 17 | 11 14 | - | - | - | - | - | - | - | - | 100 0 |
| St. Helena-North | 5/17/26 | 78.6 6.3 | 1304 | 46.2 5.8 | 0618 | 26.2 11.6 | 75 17 | 7 10 | 2.3 | 23.3 8.6 | 1550 | W | 268 | 0.00 | 31.03 | 0.200 0.006 | 584 19 | 100 0 |
| St. Helena (NVV Office) | 5/17/26 | 76.2 8.8 | 1540 | 49.8 3.7 | 0529 | - | - | - | 3.0 | 22.8 11.6 | 1457 | NNW | 341 | 0.00 | 28.47 | - | - | 100 0 |
| Tiara Fria (East St. Helena) | 5/17/26 | 75.9 6.1 | 1733 | 51.0 4.3 | 0627 | 29.4 9.7 | 64 11 | 10 12 | 5.2 | 37.5 17.4 | 1752 | NNW | 341 | 0.00 | 26.44 | - | - | 100 0 |
| Rutherford Hill Estate | 5/17/26 | 77.9 8.2 | 1524 | 48.6 4.1 | 0612 | 31.1 10.4 | 73 11 | 10 12 | 2.6 | 28.1 12.3 | 1747 | NNE | 25 | 0.00 | 25.00 | 0.201 0.004 | 606 18 | 100 0 |
| Rutherford-North (Mee Ln) | 5/17/26 | 77.3 6.2 | 1552 | 45.2 8.9 | 0613 | 31.8 8.8 | 82 23 | 12 10 | 4.7 | 29.4 9.9 | 1746 | ENE | 73 | 0.00 | 24.52 | 0.235 0.002 | 622 15 | 100 0 |
| Rutherford (STS) | 5/17/26 | 75.9 7.8 | 1248 | 45.4 4.3 | 0559 | 35.6 8.9 | 85 12 | 16 10 | 5.9 | 30.2 13.6 | 1851 | NNE | 17 | 0.00 | 25.82 | 0.265 0.021 | 721 18 | 100 0 |
| Oakville-NE (Ranch 88) | 5/17/26 | 76.0 7.8 | 1709 | 43.5 5.6 | 0610 | 28.3 10.8 | 86 13 | 9 9 | 5.5 | 33.0 15.9 | 1637 | NE | 42 | 0.00 | 24.92 | 0.262 0.026 | 666 10 | 100 0 |
| OV561-East | 5/17/26 | 79.4 5.0 | 1704 | 44.3 6.7 | 0605 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| Oakville | 5/17/26 | 75.5 6.6 | 1707 | 44.2 5.5 | 0600 | 30.3 10.1 | 88 20 | 10 8 | 6.2 | 35.3 17.5 | 1559 | NNW | 348 | 0.00 | 25.51 | 0.271 0.033 | 710 18 | 90 20 |
| OV518-West | 5/17/26 | 76.0 5.8 | 1708 | 45.1 6.1 | 0548 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| To Kalon Remote (TKKE) | 5/17/26 | 77.5 6.6 | 1714 | 46.6 3.2 | 0627 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| To Kalon | 5/17/26 | 75.8 7.4 | 1643 | 48.1 2.1 | 0618 | 31.2 10.2 | 77 5 | 11 9 | 5.9 | 27.1 12.3 | 1431 | NNW | 338 | 0.00 | 27.70 | 0.264 0.038 | 647 13 | 100 0 |
| To Kalon Remote (TKN5) | 5/17/26 | 76.7 7.8 | 1536 | 48.5 3.0 | 0618 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| Yountville (Ranch 67) | 5/17/26 | 74.9 8.0 | 1649 | 42.6 4.7 | 0610 | 29.6 9.1 | 88 16 | 9 8 | 6.3 | 37.9 21.3 | 1849 | N | 8 | 0.00 | 23.62 | 0.277 0.033 | 737 28 | 100 20 |
| Stags Leap Dist (Silverado Vineyards) | 5/17/26 | 74.6 9.2 | 1648 | 42.9 4.9 | 0634 | 30.5 9.6 | 91 17 | 9 9 | 4.3 | 28.8 19.0 | 1759 | NNW | 343 | 0.00 | 27.62 | 0.256 0.048 | 695 13 | 80 20 |
| Borreo (Soda Canyon) | 5/17/26 | 73.5 7.9 | 1728 | 40.4 2.6 | 0510 | 29.5 10.3 | 95 9 | 10 9 | 4.4 | 31.6 15.6 | 1449 | NNW | 345 | 0.00 | 27.52 | 0.253 0.027 | 724 14 | 100 20 |
| Wappo Hill Floor | 5/17/26 | 76.3 8.0 | 1533 | 42.5 11.6 | 0638 | 30.9 9.4 | 90 30 | 10 8 | 8.3 | 35.5 18.4 | 1851 | N | 350 | 0.00 | 26.75 | 0.294 0.036 | 692 16 | 100 10 |
| Stags Leap Dist (Chimney Rock) | 5/17/26 | 76.2 7.2 | 1253 | 42.0 3.9 | 0632 | 36.4 8.1 | 96 11 | 15 11 | 6.1 | 33.8 16.5 | 1630 | N | 7 | 0.00 | 26.14 | 0.250 0.029 | 628 14 | 100 20 |
| Yountville-South (Ranch 87) | 5/17/26 | 76.5 7.4 | 1542 | 44.8 1.3 | 0611 | 32.0 9.8 | 90 4 | 11 10 | 3.0 | 21.7 6.0 | 1458 | NNE | 24 | 0.00 | 27.39 | 0.232 0.003 | 725 22 | 100 20 |
| Yountville-SE (Ranch 85) | 5/17/26 | 75.8 7.4 | 1747 | 44.7 4.2 | 0614 | 31.7 10.0 | 88 7 | 11 9 | 6.2 | 35.4 20.1 | 1727 | NNW | 348 | 0.00 | 25.69 | - | 0 0 | 100 20 |
| Oak Knoll-East (Ranch 53) | 5/17/26 | 76.1 8.0 | 1650 | 45.1 1.4 | 0624 | 31.3 9.2 | 89 2 | 10 8 | 5.4 | 33.5 17.9 | 1619 | NNW | 346 | 0.00 | 24.30 | 0.270 0.037 | 725 18 | 80 20 |
| Napa-NW (Ranch 54) | 5/17/26 | 76.0 7.7 | 1724 | 45.6 1.0 | 0605 | 31.4 10.8 | 88 0 | 10 9 | 3.6 | 23.4 9.7 | 1636 | NE | 40 | 0.00 | 26.77 | - | 0 0 | 100 0 |
| Napa-North (Ranch 29) | 5/17/26 | 76.8 6.8 | 1630 | 45.1 1.4 | 0632 | 33.4 8.7 | 96 6 | 11 8 | 2.8 | 26.2 12.9 | 1619 | N | 353 | 0.00 | 25.18 | 0.164 0.016 | 427 24 | 100 0 |
| Max | 79.4 | - | 51.0 | - | 36.4 | 96 | 16 | 8.3 | 37.9 | - | - | 0.00 | 32.79 | 0.294 | 737 | - | |
| Avg | - | - | - | - | 31.2 | - | - | 4.8 | - | - | - | - | - | - | - | - | |
| Min | 73.4 | - | 40.4 | - | 26.2 | 64 | 7 | 2.3 | 21.7 | - | - | 0.00 | 23.62 | 0.164 | 0 | - |
| Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | Daily Max RH (%) | Daily Min RH (%) | Wind Spd (mph) | Daily Max Wind (mph) | Time of Max Wind | Max Wind Dir (°) | Daily Rain (In) | Season Precip (In) | Daily ETo (in) | Daily Solar Rad (Cal/cm2) | Powdery Mildew Stress (pts) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mt. Veeder | 5/17/26 | 70.4 5.8 | 1235 | 50.9 2.2 | 0519 | 28.3 9.5 | 62 1 | 13 12 | 6.1 | 26.3 11.7 | 1739 | E | 79 | 0.00 | 34.19 | 0.243 0.054 | 608 2 | 30 10 |
| Mount George (Napa East) | 5/17/26 | 116.8 35.6 | 1856 | 49.8 1.0 | 0418 | 38.7 8.2 | 97 2 | 11 9 | 3.5 | 29.2 11.6 | 1810 | N | 8 | 0.00 | 17.04 | 0.249 0.042 | 692 16 | 100 0 |
| Napa-East (Palmaz 300') | 5/17/26 | 77.8 5.6 | 1636 | 44.0 3.7 | 0610 | 33.9 9.9 | 93 9 | 10 9 | 2.7 | 24.8 8.0 | 1823 | W | 266 | 0.00 | 23.29 | 0.193 0.011 | 571 15 | 100 20 |
| Napa-East (Palmaz 1200') | 5/16/26 | 76.6 1.2 | 1442 | 43.0 1.7 | 0554 | 42.2 3.8 | 87 13 | 24 21 | 2.5 | 15.6 1.3 | 1640 | WSW | 254 | - | - | 0.197 0.004 | 680 14 | 60 60 |
| Napa-East (Palmaz 1400') | 5/17/26 | 71.6 6.1 | 1235 | 45.2 2.8 | 0618 | 31.0 10.4 | 81 2 | 14 10 | 6.3 | 32.2 17.3 | 1803 | NNE | 13 | 0.00 | 30.80 | 0.247 0.044 | 683 12 | 50 10 |
| Wooden Valley | 5/17/26 | 72.2 7.2 | 1725 | 44.5 2.0 | 0011 | 31.2 10.2 | 74 5 | 11 8 | 5.7 | 31.0 13.9 | 1756 | NNW | 341 | 0.00 | 29.11 | 0.250 0.032 | 714 22 | 90 10 |
| Napa-West Upper (Truchard) | 5/17/26 | 75.8 4.5 | 1307 | 46.2 3.7 | 0559 | 31.9 11.2 | 88 13 | 10 14 | 5.4 | 32.4 13.4 | 1706 | NNE | 30 | 0.00 | 24.41 | 0.265 0.037 | 702 19 | 100 0 |
| Napa-West Lower (Truchard) | 5/17/26 | 81.0 2.6 | 1213 | 40.5 0.5 | 0530 | 32.7 11.4 | 100 0 | 11 11 | - | - | - | - | - | - | - | - | 100 0 |
| Napa-South (Toyon Farms) | 5/17/26 | 78.2 3.1 | 1307 | 46.5 2.4 | 0554 | 38.5 9.0 | 94 8 | 15 14 | 2.9 | 17.2 0.7 | 1419 | ENE | 69 | 0.00 | 18.34 | 0.136 0.012 | 348 14 | 100 10 |
| Toyon Remote 1 | 5/17/26 | 78.2 6.4 | 1257 | 38.7 0.6 | 0314 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 5/17/26 | 77.4 3.7 | 1737 | 42.0 0.9 | 0602 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 5/17/26 | 77.6 7.5 | 1316 | 41.9 2.0 | 0502 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 5/17/26 | 77.0 3.8 | 1543 | 43.8 3.1 | 0458 | 32.1 11.0 | 93 7 | 11 12 | 4.5 | 29.6 12.9 | 1715 | N | 353 | 0.00 | 23.58 | 0.256 0.040 | 715 21 | 100 10 |
| Carneros (Saintsbury) | 5/17/26 | 75.4 4.0 | 1551 | 43.1 3.5 | 0502 | 33.2 10.6 | 93 6 | 10 13 | 4.1 | 25.8 4.1 | 1658 | NNW | 332 | 0.00 | 8.68 | - | - | 100 10 |
| Suscol Lower (Ranch 35) | 5/17/26 | 76.9 2.5 | 1617 | 44.8 2.8 | 0252 | 32.4 10.8 | - | - | 6.2 | 30.0 9.7 | 1623 | NNW | 341 | 0.00 | 22.84 | 0.255 0.044 | 635 15 | 100 10 |
| Suscol Mtn (Ranch 93) | 5/17/26 | 76.1 3.3 | 1226 | 46.8 5.7 | 0521 | 30.4 10.4 | 80 14 | 10 18 | 7.7 | 44.4 22.1 | 1534 | NNE | 33 | 0.00 | 18.60 | - | - | 100 10 |
| Suscol Upper (Ranch 92) | 5/17/26 | 74.7 1.7 | 1637 | 46.7 5.0 | 0623 | 31.2 9.8 | 82 10 | 10 16 | 5.8 | 37.5 18.2 | 1815 | N | 352 | 0.00 | 22.35 | - | - | 80 20 |
| Stanly (Ranch 45) | 5/17/26 | 76.2 3.6 | 1607 | 43.2 1.8 | 0609 | 33.9 9.4 | 92 1 | 10 13 | 6.2 | 31.4 11.4 | 1739 | NNE | 30 | 0.00 | 22.49 | 0.285 0.032 | 762 18 | 100 10 |
| Carneros Upper (Ranch 81) | 5/17/26 | 74.6 2.2 | 1359 | 47.3 4.4 | 0525 | 29.4 11.1 | - | - | 8.0 | 34.9 7.0 | 1629 | NNE | 17 | - | - | - | - | 80 20 |
| Carneros (Mitsuko) | 5/17/26 | 77.8 1.3 | 1554 | 39.0 3.1 | 0500 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| Carneros Lower (Ranch 81) | 5/17/26 | 75.6 6.3 | 1629 | 44.5 4.1 | 0601 | 32.9 9.8 | 92 20 | 12 15 | 4.0 | 26.0 11.7 | 1727 | NW | 322 | 0.00 | 19.42 | 0.234 0.045 | 610 6 | 100 20 |
| Carneros (Milton Rd) | 5/17/26 | 78.0 0.8 | 1354 | 40.8 3.4 | 0557 | 33.1 10.2 | 92 6 | 10 16 | - | - | - | - | 0.00 | 18.07 | - | - | 100 10 |
| Max | 116.8 | - | 50.9 | - | 38.7 | 100 | 15 | 8.0 | 44.4 | - | - | 0.00 | 34.19 | 0.285 | 762 | - | |
| Avg | - | - | - | - | 32.6 | - | - | 5.3 | - | - | - | - | - | - | - | - | |
| Min | 70.4 | - | 38.7 | - | 28.3 | 62 | 10 | 2.7 | 17.2 | - | - | 0.00 | 8.68 | 0.136 | 348 | - |