| 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 | 4/8/26 | 74.8 1.4 | 1456 | 47.1 9.2 | 0256 | - | - | - | - | - | - | - | 0.00 | 43.59 | - | - | 90 20 |
| Pope Valley (Weeks Lake) | 4/8/26 | 81.3 4.0 | 1536 | 39.2 4.3 | 0622 | 47.9 3.0 | 100 0 | 32 3 | 2.6 | 18.6 7.4 | 1537 | W | 266 | 0.00 | 22.17 | 0.155 0.002 | 456 68 | 100 0 |
| 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 | 4/8/26 | 82.9 3.9 | 1225 | 46.4 4.0 | 0628 | 51.8 3.0 | 98 2 | 34 3 | 5.1 | 21.8 5.6 | 1641 | WSW | 250 | 0.00 | 19.65 | 0.203 0.019 | 564 30 | 100 0 |
| Dollarhide 1AS Remote | 4/8/26 | 81.5 3.0 | 1620 | 41.1 1.6 | 0626 | 49.9 2.0 | 95 0 | 36 2 | 3.1 | 16.1 0.4 | 1647 | WNW | 283 | - | - | - | - | 100 0 |
| Dollarhide 17B Remote | 4/8/26 | 82.5 2.4 | 1544 | 42.8 3.6 | 0633 | 51.2 3.0 | 100 0 | 31 3 | - | - | - | - | - | - | - | - | 100 0 |
| Dollarhide 18A Remote | 4/8/26 | 82.0 3.9 | 1541 | 38.7 1.5 | 0632 | 49.3 2.0 | 100 0 | 35 1 | - | - | - | - | - | - | - | - | 100 0 |
| Angwin | 4/8/26 | 71.6 3.4 | 1455 | 55.6 8.6 | 0620 | 45.2 5.7 | 80 6 | 32 16 | 3.5 | 16.1 2.5 | 1447 | SSE | 165 | 0.00 | 39.79 | 0.044 0.006 | 0 0 | 30 10 |
| Lower Angwin (Pioneer) | 4/8/26 | 74.8 4.5 | 1453 | 44.8 4.8 | 0446 | - | - | - | 2.5 | 15.3 0.5 | 1652 | W | 268 | - | - | - | - | 40 10 |
| Deer Park | 4/8/26 | 80.7 4.7 | 1535 | 46.7 0.4 | 0543 | 49.9 2.8 | 93 2 | 32 0 | 3.4 | 16.2 0.5 | 1547 | WNW | 282 | 0.01 | 24.33 | 0.126 0.003 | 334 17 | 100 20 |
| Lower Chiles Valley (Brown) | 4/8/26 | 79.5 4.9 | 1546 | 41.8 4.1 | 0641 | 49.0 2.1 | 98 2 | 34 7 | 2.9 | 17.8 4.0 | 1714 | WNW | 299 | 0.00 | 21.36 | 0.164 0.011 | 524 14 | 100 10 |
| Moss Creek Vineyard/Reservior | 4/8/26 | 82.8 3.5 | 1613 | 45.3 4.0 | 0628 | 48.7 1.4 | 94 6 | 30 3 | - | - | - | - | 0.00 | 23.90 | - | - | 100 0 |
| Max | 82.9 | - | 55.6 | - | 51.8 | 100 | 36 | 5.1 | 21.8 | - | - | 0.01 | 43.59 | 0.203 | 564 | - | |
| Avg | - | - | - | - | 49.2 | - | - | 3.3 | - | - | - | - | - | - | - | - | |
| Min | 71.6 | - | 38.7 | - | 45.2 | 80 | 30 | 2.5 | 15.3 | - | - | 0.00 | 19.65 | 0.044 | 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 | 4/7/26 | 78.9 0.9 | 1547 | 47.2 1.4 | 0130 | 49.3 0.6 | 95 0 | 34 0 | - | - | - | - | 0.00 | 28.45 | - | - | 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) | 4/8/26 | 79.6 4.1 | 1447 | 49.3 3.6 | 0411 | 49.6 2.0 | 88 12 | 37 3 | - | - | - | - | 0.00 | 27.04 | - | - | 100 20 |
| Diamond Mtn (McEachran) | 4/8/26 | 79.3 4.3 | 1442 | 47.5 0.4 | 0657 | 49.9 3.0 | 90 5 | 36 4 | - | - | - | - | - | - | - | - | 100 20 |
| St. Helena-North | 4/8/26 | 83.1 3.2 | 1410 | 45.3 1.4 | 0635 | 48.0 2.6 | 90 2 | 28 4 | 1.9 | 13.2 0.4 | 1525 | NNW | 333 | 0.00 | 27.35 | 0.134 0.005 | 412 7 | 100 0 |
| St. Helena (NVV Office) | 4/8/26 | 84.1 3.4 | 1526 | 46.0 1.5 | 0707 | - | - | - | 1.2 | 10.7 1.2 | 1746 | W | 269 | 0.00 | 24.05 | - | - | 100 0 |
| Tiara Fria (East St. Helena) | 4/8/26 | 83.0 3.5 | 1531 | 45.6 1.3 | 0649 | 49.5 2.3 | 93 2 | 31 3 | 2.9 | 15.9 4.3 | 1736 | W | 270 | 0.00 | 22.33 | - | - | 100 0 |
| Rutherford Hill Estate | 4/8/26 | 83.1 2.8 | 1537 | 47.1 0.1 | 0713 | 50.4 2.8 | 100 8 | 31 1 | 1.9 | 12.7 2.0 | 1751 | NW | 312 | 0.00 | 21.81 | 0.138 0.002 | 432 38 | 100 10 |
| Rutherford-North (Mee Ln) | 4/8/26 | 83.2 2.8 | 1521 | 41.3 2.1 | 0643 | 49.4 2.1 | 96 2 | 32 6 | 2.3 | 15.8 5.9 | 1510 | NW | 325 | 0.00 | 20.92 | 0.155 0.016 | 482 20 | 100 10 |
| Rutherford (STS) | 4/8/26 | 85.5 5.5 | 1437 | 42.9 1.0 | 0609 | 51.1 2.3 | 91 0 | 36 4 | 2.4 | 17.7 1.2 | 1708 | WSW | 254 | 0.00 | 22.08 | 0.184 0.025 | 586 42 | 100 10 |
| Oakville-NE (Ranch 88) | 4/8/26 | 83.9 5.6 | 1511 | 42.1 1.2 | 0640 | 47.4 1.7 | 91 0 | 28 5 | 2.4 | 16.9 2.3 | 1738 | WNW | 293 | 0.00 | 21.48 | 0.172 0.020 | 533 28 | 0 0 |
| OV561-East | 4/8/26 | 84.5 3.6 | 1548 | 43.3 2.3 | 0657 | - | - | - | - | - | - | - | - | - | - | - | 80 20 |
| Oakville | 4/8/26 | 82.8 6.1 | 1541 | 43.0 1.0 | 0632 | 49.3 2.4 | 96 1 | 31 4 | 3.4 | 16.5 3.2 | 1639 | SW | 228 | 0.00 | 21.93 | 0.173 0.016 | 535 7 | 100 20 |
| OV518-West | 4/8/26 | 81.8 5.8 | 1530 | 42.8 2.2 | 0639 | - | - | - | - | - | - | - | - | - | - | - | 100 20 |
| To Kalon Remote (TKKE) | 4/8/26 | 83.3 3.4 | 1445 | 43.1 0.3 | 0639 | - | - | - | - | - | - | - | - | - | - | - | 90 20 |
| To Kalon | 4/8/26 | 82.3 4.3 | 1451 | 42.8 1.5 | 0614 | 50.3 2.4 | 98 1 | 34 3 | 2.6 | 13.5 0.0 | 1447 | SSW | 210 | 0.00 | 23.88 | 0.159 0.009 | 510 5 | 100 20 |
| To Kalon Remote (TKN5) | 4/8/26 | 83.8 4.6 | 1532 | 43.3 1.0 | 0622 | - | - | - | - | - | - | - | - | - | - | - | 90 20 |
| Yountville (Ranch 67) | 4/8/26 | 82.8 7.4 | 1522 | 43.2 0.6 | 0711 | 48.0 2.2 | 95 1 | 29 7 | 2.9 | 14.8 2.1 | 1808 | WSW | 248 | 0.00 | 20.20 | 0.168 0.007 | 549 25 | 100 20 |
| Stags Leap Dist (Silverado Vineyards) | 4/8/26 | 84.3 9.5 | 1558 | 43.2 0.4 | 0631 | 48.8 2.5 | 97 1 | 28 9 | 1.5 | 11.3 2.0 | 1232 | SSE | 158 | 0.00 | 24.16 | 0.141 0.007 | 481 9 | 80 10 |
| Borreo (Soda Canyon) | 4/8/26 | 80.9 8.4 | 1620 | 42.8 2.9 | 0508 | 47.9 2.3 | 98 1 | 31 8 | 1.8 | 12.1 2.5 | 0935 | SW | 222 | 0.00 | 24.14 | 0.156 0.009 | 522 17 | 60 10 |
| Wappo Hill Floor | 4/8/26 | 83.6 6.8 | 1555 | 41.2 0.2 | 0655 | 49.5 2.5 | 100 0 | 31 6 | 2.9 | 15.4 3.2 | 1931 | NW | 310 | 0.00 | 23.50 | 0.161 0.004 | 493 28 | 80 20 |
| Stags Leap Dist (Chimney Rock) | 4/8/26 | 82.9 7.9 | 1607 | 43.4 0.0 | 0645 | 50.7 2.3 | 100 1 | 36 8 | 3.1 | 13.7 1.2 | 1840 | NW | 306 | 0.00 | 22.77 | 0.150 0.012 | 458 12 | 100 20 |
| Yountville-South (Ranch 87) | 4/8/26 | 83.1 7.1 | 1538 | 43.0 0.4 | 0629 | 50.1 2.5 | 100 0 | 31 8 | 2.3 | 12.4 0.7 | 1656 | NW | 309 | 0.00 | 23.91 | 0.148 0.002 | 468 29 | 30 20 |
| Yountville-SE (Ranch 85) | 4/8/26 | 83.5 7.5 | 1506 | 43.2 0.5 | 0712 | 50.1 2.7 | 97 0 | 35 4 | 2.6 | 12.4 0.4 | 1804 | NNW | 337 | 0.00 | 22.44 | - | 0 0 | 80 20 |
| Oak Knoll-East (Ranch 53) | 4/3/26 | 80.5 10.3 | 1722 | 45.0 4.7 | 0045 | 27.6 11.1 | 76 19 | 10 11 | 5.2 | 21.4 7.7 | 0509 | NNW | 341 | 0.00 | 20.76 | 0.206 0.064 | 539 11 | 50 20 |
| Napa-NW (Ranch 54) | 4/8/26 | 83.7 5.9 | 1520 | 43.7 0.7 | 0647 | 49.7 3.0 | 100 0 | 29 7 | 1.3 | 11.8 3.1 | 1459 | WSW | 248 | 0.00 | 23.03 | - | 0 0 | 100 10 |
| Napa-North (Ranch 29) | 4/8/26 | 82.8 9.0 | 1511 | 44.2 1.0 | 0635 | 50.6 3.0 | 100 0 | 37 3 | 2.4 | 16.2 3.7 | 1630 | WSW | 243 | 0.00 | 20.62 | 0.118 0.011 | 335 11 | 80 20 |
| Max | 85.5 | - | 49.3 | - | 51.1 | 100 | 37 | 3.4 | 17.7 | - | - | 0.00 | 27.35 | 0.184 | 586 | - | |
| Avg | - | - | - | - | 49.5 | - | - | 2.3 | - | - | - | - | - | - | - | - | |
| Min | 79.3 | - | 41.2 | - | 47.4 | 88 | 28 | 1.2 | 10.7 | - | - | 0.00 | 20.20 | 0.118 | 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 | 4/8/26 | 76.2 3.1 | 1443 | 52.6 10.2 | 0439 | 47.7 2.3 | 80 20 | 37 1 | 1.3 | 8.9 0.6 | 1427 | SE | 143 | 0.00 | 29.86 | 0.133 0.011 | 432 2 | 70 10 |
| Mount George (Napa East) | 4/8/26 | 79.8 5.4 | 1545 | 43.6 6.9 | 0640 | 50.3 0.4 | 98 1 | 41 1 | 1.4 | 12.9 2.5 | 1640 | SE | 144 | 0.00 | 12.38 | 0.152 0.008 | 524 4 | 100 20 |
| Napa-East (Palmaz 300') | 4/8/26 | 82.2 8.5 | 1540 | 45.2 2.7 | 0543 | 50.4 3.4 | 100 6 | 39 1 | 1.7 | 13.6 1.3 | 1534 | W | 264 | 0.00 | 18.82 | 0.148 0.013 | 480 9 | 80 20 |
| Napa-East (Palmaz 1200') | 4/8/26 | 75.8 7.7 | 1612 | 44.0 1.8 | 0646 | 48.0 4.0 | 100 0 | 5 4 | 2.4 | 17.4 3.7 | 0940 | WNW | 300 | - | - | 0.147 0.013 | 523 4 | 60 10 |
| Napa-East (Palmaz 1400') | 4/8/26 | 75.5 7.5 | 1530 | 47.1 2.6 | 0708 | 49.6 2.8 | 95 5 | 46 0 | 2.5 | 16.9 2.7 | 0941 | WSW | 244 | 0.00 | 25.60 | 0.149 0.019 | 520 19 | 60 10 |
| Wooden Valley | 4/8/26 | 78.3 5.9 | 1502 | 45.5 1.3 | 0642 | 48.9 2.4 | 91 1 | 40 2 | 2.9 | 18.4 4.5 | 1610 | SW | 227 | 0.00 | 24.50 | 0.166 0.010 | 532 47 | 60 20 |
| Napa-West Upper (Truchard) | 4/8/26 | 82.4 9.1 | 1436 | 45.6 1.7 | 0527 | 20.8 9.2 | 100 0 | 0 0 | 3.1 | 18.0 1.3 | 1525 | SSW | 211 | 0.00 | 20.48 | 0.170 0.019 | 534 23 | 80 20 |
| Napa-West Lower (Truchard) | 4/8/26 | 85.7 8.9 | 1422 | 40.3 1.0 | 0614 | 48.7 2.6 | 100 1 | 34 4 | - | - | - | - | - | - | - | - | 50 20 |
| Napa-South (Toyon Farms) | 4/8/26 | 81.4 8.7 | 1517 | 46.4 0.9 | 0625 | 52.7 3.6 | 100 2 | 46 1 | 3.1 | 15.5 2.5 | 1717 | WSW | 238 | 0.00 | 14.27 | 0.094 0.008 | 276 8 | 80 20 |
| Toyon Remote 1 | 4/8/26 | 84.1 8.6 | 1440 | 38.8 0.7 | 0621 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 4/8/26 | 80.9 8.3 | 1510 | 42.2 0.6 | 0624 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 4/8/26 | 85.3 9.6 | 1517 | 41.7 0.5 | 0637 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 4/8/26 | 81.0 8.4 | 1428 | 44.2 0.2 | 0649 | 50.0 3.2 | 96 1 | 40 3 | 2.3 | 14.0 1.4 | 1529 | SW | 225 | 0.00 | 19.68 | 0.162 0.017 | 545 20 | 80 20 |
| Carneros (Saintsbury) | 4/8/26 | 80.2 8.4 | 1447 | 42.5 2.9 | 0611 | 50.2 3.2 | 100 4 | 41 1 | 3.6 | 19.6 2.8 | 1636 | WSW | 248 | 0.00 | 5.97 | - | - | 60 20 |
| Suscol Lower (Ranch 35) | 4/8/26 | 80.5 6.9 | 1543 | 44.6 2.2 | 0522 | 50.2 3.6 | - | - | 4.5 | 18.0 0.6 | 1740 | WSW | 257 | 0.00 | 18.65 | 0.155 0.011 | 495 16 | 100 20 |
| Suscol Mtn (Ranch 93) | 4/8/26 | 79.5 8.0 | 1454 | 47.8 1.8 | 0133 | 50.3 3.9 | 95 4 | 46 2 | 5.0 | 23.0 1.4 | 1624 | NW | 306 | 0.00 | 14.30 | - | - | 70 10 |
| Suscol Upper (Ranch 92) | 4/8/26 | 76.8 8.1 | 1445 | 47.7 1.1 | 0611 | 49.4 10.2 | 100 0 | 3 0 | 2.9 | 20.2 3.5 | 1557 | SSW | 207 | 0.00 | 18.55 | - | - | 70 10 |
| Stanly (Ranch 45) | 4/8/26 | 81.6 8.3 | 1523 | 42.1 4.1 | 0552 | 49.7 3.5 | 97 5 | 39 2 | 4.4 | 19.7 4.2 | 1626 | WSW | 258 | 0.00 | 20.12 | 0.181 0.011 | 573 1 | 80 20 |
| Carneros Upper (Ranch 81) | 4/8/26 | 79.6 8.6 | 1453 | 49.2 1.4 | 0427 | 49.4 3.1 | - | - | 7.8 | 25.4 1.6 | 1616 | W | 261 | - | - | - | - | 70 10 |
| Carneros (Mitsuko) | 4/8/26 | 80.9 9.0 | 1455 | 40.9 4.9 | 0544 | - | - | - | - | - | - | - | - | - | - | - | 30 10 |
| Carneros Lower (Ranch 81) | 4/8/26 | 84.5 9.2 | 1436 | 46.3 2.1 | 0330 | 50.9 3.3 | 100 8 | 0 40 | 1.0 | 13.2 2.3 | 1557 | W | 278 | 0.00 | 16.94 | 0.130 0.009 | 435 1 | 30 10 |
| Carneros (Milton Rd) | 4/8/26 | 81.4 8.9 | 1505 | 42.9 3.1 | 0632 | 50.2 3.4 | 95 2 | 38 2 | - | - | - | - | 0.00 | 17.12 | - | - | 40 10 |
| Max | 85.7 | - | 52.6 | - | 52.7 | 100 | 46 | 7.8 | 25.4 | - | - | 0.00 | 29.86 | 0.181 | 573 | - | |
| Avg | - | - | - | - | 48.2 | - | - | 3.1 | - | - | - | - | - | - | - | - | |
| Min | 75.5 | - | 38.8 | - | 20.8 | 80 | 0 | 1.0 | 8.9 | - | - | 0.00 | 5.97 | 0.094 | 276 | - |