| 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 | 4/17/26 | 70.1 5.3 | 1524 | 37.2 3.0 | 0646 | - | - | - | - | - | - | - | 0.00 | 47.36 | - | - | 0 10 |
| Pope Valley (Weeks Lake) | 4/17/26 | 74.3 6.6 | 1657 | 36.0 0.7 | 0055 | 25.4 1.7 | 95 5 | 11 2 | 3.3 | 16.2 5.7 | 0436 | N | 10 | 0.00 | 24.05 | 0.187 0.009 | 583 1 | 10 10 |
| Whiskey River Winery | 12/13/25 | 52.8 3.6 | 1548 | 37.3 0.3 | 0759 | 36.3 2.0 | 88 11 | 68 4 | 0.0 | 0.0 2.4 | 0001 | SE | 128 | 0.00 | 7.07 | - | - | - |
| Dollarhide Base | 4/17/26 | 75.8 6.6 | 1526 | 46.0 4.6 | 0059 | 28.4 0.5 | 75 25 | 14 2 | 4.7 | 22.6 4.2 | 0601 | NW | 314 | 0.00 | 21.37 | 0.220 0.007 | 658 1 | 20 10 |
| Dollarhide 1AS Remote | 4/17/26 | 76.4 6.5 | 1705 | 40.6 5.1 | 0039 | 29.9 1.5 | 92 3 | 14 1 | 3.1 | 21.3 2.0 | 0354 | NNE | 22 | - | - | - | - | 10 10 |
| Dollarhide 17B Remote | 4/17/26 | 76.7 6.9 | 1610 | 40.8 4.0 | 0057 | 31.6 1.0 | 91 9 | 15 0 | - | - | - | - | - | - | - | - | 20 10 |
| Dollarhide 18A Remote | 4/17/26 | 77.0 6.4 | 1704 | 36.7 2.1 | 0329 | 30.9 1.9 | 95 5 | 15 1 | - | - | - | - | - | - | - | - | 10 10 |
| Angwin | 4/17/26 | 67.1 6.7 | 1618 | 44.8 3.5 | 0536 | 18.9 1.1 | 38 57 | 12 3 | 8.0 | 29.9 1.8 | 0258 | NW | 321 | 0.00 | 42.26 | 0.087 0.032 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 4/17/26 | 68.9 5.8 | 1602 | 41.1 2.4 | 2351 | - | - | - | 4.7 | 22.2 0.7 | 0354 | NNE | 21 | - | - | - | - | 0 0 |
| Deer Park | 4/17/26 | 75.7 4.9 | 1537 | 51.0 5.4 | 0059 | 22.0 1.1 | 45 49 | 11 4 | 4.7 | 25.8 5.0 | 0125 | WNW | 288 | 0.00 | 26.38 | 0.186 0.004 | 435 2 | 10 10 |
| Lower Chiles Valley (Brown) | 4/17/26 | 74.5 7.7 | 1739 | 36.8 0.3 | 0059 | 24.6 0.4 | 90 10 | 12 4 | 3.5 | 21.4 1.1 | 0116 | NE | 40 | 0.00 | 23.68 | 0.198 0.011 | 625 4 | 10 10 |
| Moss Creek Vineyard/Reservior | 4/17/26 | 73.5 7.3 | 1737 | 43.2 1.2 | 0039 | 25.2 0.6 | 87 13 | 10 0 | - | - | - | - | 0.00 | 25.15 | - | - | 20 10 |
| Max | 77.0 | - | 51.0 | - | 31.6 | 95 | 15 | 8.0 | 29.9 | - | - | 0.00 | 47.36 | 0.220 | 658 | - | |
| Avg | - | - | - | - | 26.3 | - | - | 4.6 | - | - | - | - | - | - | - | - | |
| Min | 67.1 | - | 36.0 | - | 18.9 | 38 | 10 | 3.1 | 16.2 | - | - | 0.00 | 21.37 | 0.087 | 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 | 4/17/26 | 81.0 6.6 | 1412 | 42.7 0.1 | 0059 | 28.9 0.2 | 86 12 | 13 3 | - | - | - | - | 0.00 | 30.66 | - | - | 40 20 |
| Fotsch (Maple Lane) | 3/9/26 | 75.9 3.7 | 1625 | 41.4 5.5 | 0743 | 44.5 1.8 | 97 3 | 26 3 | 3.3 | 15.6 1.3 | 1413 | WSW | 249 | 0.00 | 26.01 | - | - | 0 0 |
| Diamond Mtn (Schramsberg) | 4/17/26 | 73.3 3.4 | 1533 | 51.2 6.2 | 0634 | 21.9 1.3 | 41 59 | 12 5 | - | - | - | - | 0.00 | 29.18 | - | - | 10 10 |
| Diamond Mtn (McEachran) | 4/17/26 | 76.2 5.0 | 1521 | 49.9 4.8 | 0057 | 21.8 0.1 | 57 38 | 11 5 | - | - | - | - | - | - | - | - | 10 10 |
| St. Helena-North | 4/17/26 | 77.2 2.5 | 1555 | 44.5 3.0 | 0059 | 18.3 3.3 | 66 24 | 7 4 | 2.8 | 18.6 2.2 | 0635 | WNW | 291 | 0.00 | 28.40 | 0.176 0.012 | 508 10 | 40 20 |
| St. Helena (NVV Office) | 4/17/26 | 79.0 4.8 | 1521 | 45.6 1.9 | 0053 | - | - | - | 2.0 | 18.0 1.4 | 0213 | NE | 43 | 0.00 | 26.38 | - | - | 50 20 |
| Tiara Fria (East St. Helena) | 4/17/26 | 77.0 5.6 | 1609 | 44.9 1.4 | 0059 | 22.2 1.3 | 82 14 | 9 3 | 4.1 | 25.4 1.8 | 0230 | NNW | 336 | 0.00 | 24.36 | - | - | 40 20 |
| Rutherford Hill Estate | 4/17/26 | 78.9 5.9 | 1525 | 49.9 3.6 | 0044 | 23.2 2.0 | 53 38 | 10 1 | 2.5 | 19.1 1.8 | 0151 | NE | 44 | 0.00 | 23.16 | 0.174 0.007 | 529 13 | 40 20 |
| Rutherford-North (Mee Ln) | 4/17/26 | 78.8 5.3 | 1616 | 43.3 3.3 | 0045 | 26.9 0.4 | 85 12 | 11 2 | 3.5 | 26.1 4.4 | 0339 | NW | 308 | 0.00 | 22.65 | 0.193 0.001 | 553 6 | 50 20 |
| Rutherford (STS) | 4/17/26 | 78.5 5.9 | 1559 | 44.4 2.8 | 0058 | 29.2 0.1 | 80 11 | 14 1 | 4.0 | 17.5 3.1 | 0658 | N | 8 | 0.00 | 23.91 | 0.218 0.009 | 646 13 | 50 20 |
| Oakville-NE (Ranch 88) | 4/17/26 | 78.9 6.3 | 1607 | 42.2 1.4 | 0059 | 22.8 0.5 | 86 14 | 7 1 | 4.1 | 22.6 1.9 | 0415 | NNE | 29 | 0.00 | 23.05 | 0.211 0.016 | 606 4 | 0 0 |
| OV561-East | 4/17/26 | 81.5 5.7 | 1609 | 44.8 2.2 | 0030 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Oakville | 4/17/26 | 76.7 5.0 | 1614 | 43.4 1.4 | 0059 | 23.2 1.0 | 85 12 | 9 2 | 4.6 | 22.1 0.5 | 0431 | NW | 310 | 0.00 | 23.59 | 0.221 0.013 | 624 14 | 40 20 |
| OV518-West | 4/17/26 | 75.3 3.2 | 1623 | 44.1 1.3 | 0057 | - | - | - | - | - | - | - | - | - | - | - | 10 10 |
| To Kalon Remote (TKKE) | 4/17/26 | 79.0 5.0 | 1606 | 42.4 1.1 | 0041 | - | - | - | - | - | - | - | - | - | - | - | 50 20 |
| To Kalon | 4/17/26 | 76.7 4.6 | 1611 | 44.0 1.5 | 0022 | 23.9 1.5 | 76 22 | 10 1 | 4.5 | 20.0 0.1 | 0250 | N | 354 | 0.00 | 25.72 | 0.210 0.011 | 579 10 | 10 10 |
| To Kalon Remote (TKN5) | 4/17/26 | 77.1 4.2 | 1554 | 43.3 1.4 | 0101 | - | - | - | - | - | - | - | - | - | - | - | 30 20 |
| Yountville (Ranch 67) | 4/17/26 | 76.7 4.8 | 1629 | 43.3 0.4 | 0052 | 22.8 0.5 | 84 13 | 8 2 | 5.2 | 23.6 1.5 | 0241 | N | 350 | 0.00 | 21.74 | 0.227 0.012 | 655 19 | 40 20 |
| Stags Leap Dist (Silverado Vineyards) | 4/17/26 | 76.9 5.1 | 1555 | 43.1 0.8 | 0043 | 24.2 0.3 | 84 12 | 9 3 | 3.1 | 19.5 1.6 | 0211 | NNW | 336 | 0.00 | 25.83 | 0.198 0.009 | 613 4 | 20 10 |
| Borreo (Soda Canyon) | 4/17/26 | 74.7 5.2 | 1548 | 41.9 2.0 | 0101 | 22.9 1.4 | 79 18 | 9 2 | 4.5 | 24.2 3.4 | 0343 | N | 4 | 0.00 | 25.72 | 0.212 0.018 | 643 14 | 0 10 |
| Wappo Hill Floor | 4/17/26 | 77.2 3.6 | 1617 | 42.4 2.3 | 0101 | 24.3 0.1 | 86 14 | 10 3 | 6.8 | 30.6 1.3 | 0214 | NNW | 340 | 0.00 | 25.08 | 0.226 0.030 | 580 21 | 50 20 |
| Stags Leap Dist (Chimney Rock) | 4/17/26 | 76.7 3.6 | 1601 | 42.2 1.0 | 0050 | 29.2 0.7 | 85 15 | 15 4 | 5.1 | 28.3 0.2 | 0143 | NW | 324 | 0.00 | 24.34 | 0.203 0.025 | 552 12 | 40 20 |
| Yountville-South (Ranch 87) | 4/17/26 | 76.6 3.0 | 1557 | 43.7 0.7 | 0046 | 25.9 1.1 | 88 12 | 11 3 | 3.1 | 17.8 1.2 | 0338 | NNW | 331 | 0.00 | 25.67 | 0.205 0.011 | 611 3 | 40 20 |
| Yountville-SE (Ranch 85) | 4/17/26 | 77.8 5.3 | 1602 | 45.2 1.3 | 0053 | 26.7 0.2 | 85 15 | 11 4 | 4.8 | 27.1 2.1 | 0147 | N | 0 | 0.00 | 23.95 | - | 0 0 | 20 20 |
| Oak Knoll-East (Ranch 53) | 4/17/26 | 79.3 5.0 | 1601 | 45.0 2.0 | 0045 | 24.5 0.4 | 82 14 | 9 3 | 4.6 | 26.9 4.2 | 0151 | WNW | 299 | 0.00 | 22.43 | 0.220 0.017 | 639 11 | 20 20 |
| Napa-NW (Ranch 54) | 4/17/26 | 77.7 5.0 | 1551 | 44.9 0.3 | 0059 | 23.8 1.5 | 74 26 | 9 2 | 3.3 | 17.2 0.7 | 0540 | N | 352 | 0.00 | 24.86 | - | 0 0 | 50 20 |
| Napa-North (Ranch 29) | 4/17/26 | 77.5 5.4 | 1623 | 45.7 1.3 | 0050 | 24.8 2.5 | 78 22 | 10 3 | 3.0 | 17.2 2.4 | 0340 | NW | 319 | 0.00 | 22.49 | 0.151 0.005 | 376 23 | 50 20 |
| Max | 81.5 | - | 51.2 | - | 29.2 | 88 | 15 | 6.8 | 30.6 | - | - | 0.00 | 30.66 | 0.227 | 655 | - | |
| Avg | - | - | - | - | 24.4 | - | - | 4.0 | - | - | - | - | - | - | - | - | |
| Min | 73.3 | - | 41.9 | - | 18.3 | 41 | 7 | 2.0 | 17.2 | - | - | 0.00 | 21.74 | 0.151 | 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 | 4/17/26 | 69.8 4.0 | 1512 | 47.0 4.1 | 0621 | 22.6 2.3 | 41 55 | 12 1 | 3.2 | 23.4 1.6 | 0121 | N | 1 | 0.00 | 31.92 | 0.187 0.009 | 641 129 | 0 0 |
| Mount George (Napa East) | 4/17/26 | 77.0 5.9 | 1620 | 43.2 4.4 | 0101 | 30.8 1.0 | 84 16 | 9 0 | 2.8 | 18.6 5.2 | 1046 | NNE | 14 | 0.00 | 14.31 | 0.200 0.016 | 621 5 | 40 20 |
| Napa-East (Palmaz 300') | 4/17/26 | 77.6 4.5 | 1552 | 44.2 1.8 | 0657 | 26.6 0.3 | 78 22 | 8 0 | 2.6 | 15.9 1.5 | 0928 | ENE | 65 | 0.00 | 20.64 | 0.168 0.001 | 514 9 | 50 20 |
| Napa-East (Palmaz 1200') | 4/17/26 | 71.2 4.0 | 1605 | 42.8 1.9 | 0059 | 23.2 0.6 | 73 27 | 10 0 | 3.1 | 14.9 2.6 | 0336 | SSE | 164 | - | - | 0.183 0.001 | 619 13 | 0 0 |
| Napa-East (Palmaz 1400') | 4/17/26 | 69.3 3.8 | 1528 | 45.2 3.9 | 0051 | 23.6 1.3 | 71 29 | 12 0 | 4.3 | 21.9 3.4 | 0144 | NNE | 32 | 0.00 | 27.92 | 0.192 0.007 | 605 3 | 0 0 |
| Wooden Valley | 4/17/26 | 73.3 6.0 | 1618 | 39.4 0.0 | 0056 | 24.1 1.2 | 93 3 | 9 1 | 4.0 | 28.6 5.6 | 0258 | NNW | 345 | 0.00 | 26.48 | 0.204 0.007 | 639 6 | 0 0 |
| Napa-West Upper (Truchard) | 4/17/26 | 77.2 3.7 | 1446 | 49.7 4.5 | 0058 | 23.2 22.5 | 74 26 | 9 8 | 5.3 | 27.0 3.5 | 0337 | NNE | 12 | 0.00 | 22.19 | 0.228 0.008 | 623 10 | 0 0 |
| Napa-West Lower (Truchard) | 4/17/26 | 81.6 4.1 | 1515 | 39.4 0.4 | 0056 | 25.1 0.6 | 90 10 | 8 1 | - | - | - | - | - | - | - | - | 50 20 |
| Napa-South (Toyon Farms) | 4/17/26 | 78.2 3.2 | 1500 | 47.2 2.8 | 0058 | 32.0 1.9 | 88 12 | 15 2 | 3.0 | 15.2 3.2 | 0328 | NNW | 337 | 0.00 | 15.95 | 0.111 0.000 | 293 4 | 20 20 |
| Toyon Remote 1 | 4/17/26 | 77.3 3.7 | 1558 | 38.7 1.9 | 2349 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 4/17/26 | 77.2 2.8 | 1500 | 41.2 2.0 | 0047 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 4/17/26 | 78.3 2.9 | 1559 | 42.5 0.7 | 0040 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 4/17/26 | 75.7 2.7 | 1515 | 44.6 1.4 | 2354 | 25.3 1.5 | 84 13 | 12 4 | 3.6 | 20.0 0.1 | 0522 | N | 354 | 0.00 | 21.57 | 0.203 0.013 | 621 2 | 80 20 |
| Carneros (Saintsbury) | 4/17/26 | 74.6 1.7 | 1544 | 44.4 1.6 | 0008 | 26.8 1.6 | 84 16 | 10 3 | 3.8 | 15.3 3.0 | 0506 | N | 353 | 0.00 | 7.63 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 4/17/26 | 76.7 3.1 | 1521 | 44.0 1.3 | 0653 | 25.2 1.7 | - | - | 4.7 | 20.0 4.8 | 1431 | WNW | 290 | 0.00 | 20.34 | 0.207 0.023 | 571 8 | 10 10 |
| Suscol Mtn (Ranch 93) | 4/17/26 | 76.0 6.1 | 1537 | 49.5 4.0 | 0605 | 20.6 2.6 | 41 59 | 9 1 | 4.2 | 21.7 11.4 | 0448 | NNW | 348 | 0.00 | 16.11 | - | - | 0 0 |
| Suscol Upper (Ranch 92) | 4/17/26 | 73.8 2.8 | 1421 | 48.2 3.5 | 0712 | 22.1 0.6 | 51 49 | 9 6 | 1.8 | 16.1 9.6 | 1152 | NW | 310 | 0.00 | 19.99 | - | - | 0 0 |
| Stanly (Ranch 45) | 4/17/26 | 76.6 2.7 | 1416 | 45.2 1.6 | 0032 | 26.5 1.3 | 86 12 | 10 3 | 4.1 | 16.1 6.8 | 1610 | SW | 236 | 0.00 | 22.18 | 0.229 0.015 | 677 10 | 50 20 |
| Carneros Upper (Ranch 81) | 4/17/26 | 74.6 2.5 | 1504 | 50.4 4.3 | 2311 | 23.6 23.7 | - | - | 6.8 | 23.9 2.2 | 0436 | N | 6 | - | - | - | - | 0 0 |
| Carneros (Mitsuko) | 4/17/26 | 75.8 1.7 | 1441 | 39.3 0.9 | 0059 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 4/17/26 | 77.7 4.9 | 1520 | 43.1 1.5 | 0058 | 27.4 5.7 | 86 14 | 14 14 | 2.5 | 14.0 5.3 | 0203 | N | 0 | 0.00 | 17.96 | 0.176 0.027 | 535 3 | 0 0 |
| Carneros (Milton Rd) | 4/17/26 | 75.6 0.3 | 1559 | 39.8 0.9 | 0037 | 27.9 1.1 | 92 4 | 12 5 | - | - | - | - | 0.00 | 18.04 | - | - | 0 0 |
| Max | 81.6 | - | 50.4 | - | 32.0 | 93 | 15 | 6.8 | 28.6 | - | - | 0.00 | 31.92 | 0.229 | 677 | - | |
| Avg | - | - | - | - | 25.4 | - | - | 3.7 | - | - | - | - | - | - | - | - | |
| Min | 69.3 | - | 38.7 | - | 20.6 | 41 | 8 | 1.8 | 14.0 | - | - | 0.00 | 7.63 | 0.111 | 293 | - |