| 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 | 8/4/26 | 96.0 4.2 | 1435 | 61.7 0.4 | 0055 | - | - | - | - | - | - | - | 0.00 | 0.00 | - | - | 0 0 |
| Pope Valley (Weeks Lake) | 8/4/26 | 101.7 1.0 | 1537 | 54.1 0.5 | 0556 | 54.3 1.3 | 100 7 | 18 6 | 1.6 0.0 | 12.5 0.4 | 1800 | S | 188 | 0.00 | 0.00 | 0.223 0.006 | 600 4 | 0 0 |
| Dollarhide Base | 8/4/26 | 103.2 4.0 | 1559 | 59.5 2.4 | 0624 | 58.3 1.6 | 90 4 | 23 8 | 3.4 0.5 | 15.3 1.0 | 1742 | SSW | 213 | 0.00 | 0.00 | 0.268 0.016 | 668 14 | 0 0 |
| Dollarhide 1AS Remote | 8/4/26 | 104.5 6.1 | 1556 | 55.4 0.3 | 0604 | 56.5 2.1 | 89 1 | 21 9 | 3.1 0.8 | 14.6 4.6 | 1241 | SSW | 206 | - | - | - | - | 0 0 |
| Dollarhide 16A Remote | 8/4/26 | 101.4 0.6 | 1521 | 59.3 0.3 | 0613 | 58.7 1.2 | 90 3 | 25 6 | - | - | - | - | - | - | - | - | 0 0 |
| Dollarhide 18A Remote | 8/4/26 | 100.8 0.6 | 1557 | 53.9 0.5 | 0553 | 57.1 0.9 | 98 1 | 23 6 | - | - | - | - | - | - | - | - | 0 0 |
| Hardin Rd (Eakle) | 8/4/26 | 101.8 5.7 | 1543 | 56.7 0.5 | 0630 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Angwin | 8/4/26 | 92.5 4.3 | 1526 | 70.7 4.8 | 0002 | 49.4 4.3 | 47 10 | 23 10 | 2.6 1.1 | 12.1 0.5 | 1538 | SSE | 151 | 0.00 | 0.00 | 0.064 0.031 | 0 0 | 100 0 |
| Lower Angwin (Pioneer) | 8/4/26 | 92.8 3.6 | 1604 | 52.4 5.6 | 0614 | - | - | - | 2.0 0.4 | 11.5 0.1 | 1717 | W | 275 | - | - | - | - | 20 10 |
| Las Posadas (Cal Fire) | 8/4/26 | 95.0 5.6 | 1542 | 56.0 3.7 | 0545 | 55.0 3.8 | 96 16 | 28 12 | 9.9 2.5 | 22.9 0.4 | 2217 | SW | 234 | 0.00 | 0.00 | 0.277 0.046 | 601 6 | - |
| Deer Park | 8/4/26 | 96.2 5.7 | 1502 | 57.1 2.0 | 0622 | 56.0 0.9 | 95 9 | 28 10 | 3.0 0.1 | 12.9 1.1 | 1730 | SSE | 154 | 0.00 | 0.00 | 0.185 0.022 | 446 10 | 0 0 |
| Lower Chiles Valley (Brown) | 8/4/26 | 96.5 6.7 | 1627 | 57.4 4.9 | 0642 | 56.3 4.6 | 100 6 | 24 14 | 3.8 0.6 | 16.0 1.7 | 1509 | WNW | 282 | 0.00 | 0.00 | 0.234 0.025 | 656 3 | 0 0 |
| Moss Creek Vineyard/Reservior | 8/4/26 | 103.5 2.4 | 1442 | 59.3 0.2 | 0624 | 55.4 3.8 | 86 2 | 20 10 | - | - | - | - | 0.00 | 0.00 | - | - | 0 0 |
| Max | 104.5 | - | 70.7 | - | 58.7 | 100 | 28 | 9.9 | 22.9 | - | - | 0.00 | 0.00 | 0.277 | 668 | - | |
| Avg | - | - | - | - | 55.7 | - | - | 3.7 | - | - | - | - | - | - | - | - | |
| Min | 92.5 | - | 52.4 | - | 49.4 | 47 | 18 | 1.6 | 11.5 | - | - | 0.00 | 0.00 | 0.064 | 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 | 8/4/26 | 101.3 7.2 | 1501 | 56.9 0.2 | 0622 | 57.4 1.2 | 96 2 | 26 8 | - | - | - | - | 0.00 | 0.00 | - | - | 0 0 |
| Diamond Mtn (Schramsberg) | 8/4/26 | 96.9 3.3 | 1537 | 57.6 1.7 | 0603 | 54.9 0.1 | 100 13 | 24 7 | - | - | - | - | 0.00 | 0.00 | - | - | 0 0 |
| Diamond Mtn (McEachran) | 8/4/26 | 98.6 3.3 | 1604 | 57.6 1.4 | 0547 | 56.3 0.3 | 95 8 | 24 2 | - | - | - | - | - | - | - | - | 0 0 |
| St. Helena-North | 8/4/26 | 95.4 6.0 | 1520 | 58.6 1.0 | 0509 | 55.0 0.5 | 86 3 | 27 7 | 3.2 | 13.4 1.3 | 1553 | SE | 139 | 0.00 | 0.00 | 0.217 0.022 | 556 16 | 0 0 |
| St. Helena (NVV Office) | 8/4/26 | 95.3 6.1 | 1523 | 60.4 1.9 | 0519 | - | - | - | 1.8 | 9.4 1.5 | 1612 | SSE | 149 | 0.00 | 0.00 | - | - | 0 0 |
| Tiara Fria (East St. Helena) | 8/4/26 | 91.0 6.9 | 1558 | 58.7 2.5 | 0522 | 57.8 1.1 | 89 2 | 34 9 | 2.4 | 13.0 0.4 | 1715 | SE | 142 | 0.00 | 0.00 | - | - | 0 0 |
| Prisoner Winery | 8/4/26 | 95.7 5.5 | 1516 | 55.3 0.3 | 0622 | 57.3 0.1 | 97 1 | 30 6 | 1.3 | 9.4 0.1 | 1648 | SE | 137 | 0.00 | 0.00 | 0.167 0.023 | 494 13 | 0 0 |
| Rutherford Hill Estate | 8/4/26 | 93.6 7.6 | 1538 | 56.9 1.0 | 0617 | 57.5 0.7 | 100 7 | 32 10 | 1.3 | 15.6 1.3 | 1647 | SSW | 195 | 0.00 | 0.00 | 0.185 0.014 | 547 8 | 0 0 |
| Rutherford-North (Mee Ln) | 8/4/26 | 90.6 6.0 | 1531 | 53.0 0.4 | 0554 | 56.6 0.3 | 92 2 | 35 8 | 3.0 | 17.1 0.2 | 1715 | ESE | 114 | 0.00 | 0.00 | 0.201 0.027 | 551 9 | 0 0 |
| Rutherford (STS) | 8/4/26 | 94.2 4.5 | 1457 | 52.5 0.8 | 0619 | 58.8 0.9 | 91 0 | 37 5 | 2.0 | 14.8 1.2 | 1714 | ESE | 117 | 0.00 | 0.00 | 0.224 0.014 | 662 1 | 0 0 |
| Oakville-NE (Ranch 88) | 8/4/26 | 91.3 5.9 | 1443 | 52.8 0.1 | 0616 | 54.9 0.5 | 85 1 | 32 7 | 2.3 | 15.9 0.6 | 1611 | SW | 217 | 0.00 | 0.00 | 0.211 0.021 | 592 10 | 70 10 |
| OV561-East | 8/4/26 | 92.1 6.4 | 1623 | 55.3 0.1 | 0628 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Oakville | 8/4/26 | 87.7 6.0 | 1427 | 54.0 0.1 | 0633 | 56.3 0.2 | 91 1 | 37 8 | 3.5 | 19.4 0.2 | 1539 | SE | 133 | 0.00 | 0.00 | 0.223 0.026 | 645 5 | 40 10 |
| OV518-West | 8/4/26 | 87.3 6.8 | 1453 | 54.4 0.1 | 0610 | - | - | - | - | - | - | - | - | - | - | - | 40 10 |
| To Kalon Remote (TKKE) | 8/4/26 | 91.8 7.1 | 1534 | 54.6 0.1 | 0559 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| To Kalon | 8/4/26 | 89.4 6.5 | 1538 | 54.4 0.2 | 0559 | 57.5 0.2 | 95 1 | 38 8 | 3.3 | 18.4 0.6 | 1701 | SE | 134 | 0.00 | 0.00 | 0.218 0.026 | 620 6 | 0 10 |
| To Kalon Remote (TKN5) | 8/4/26 | 92.0 6.3 | 1511 | 54.5 0.1 | 0635 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Yountville (Ranch 67) | 8/4/26 | 85.7 7.0 | 1552 | 53.1 0.1 | 0621 | 55.3 0.2 | 91 1 | 39 11 | 4.1 | 19.3 3.3 | 1637 | SE | 143 | 0.00 | 0.00 | 0.223 0.023 | 666 1 | 50 10 |
| Stags Leap Dist (Silverado Vineyards) | 8/4/26 | 87.2 6.5 | 1523 | 53.6 0.3 | 0618 | 55.6 0.4 | 93 1 | 37 11 | 3.4 | 18.6 1.8 | 1655 | ENE | 77 | 0.00 | 0.00 | 0.219 0.023 | 633 5 | 60 10 |
| Borreo (Soda Canyon) | 8/4/26 | 86.4 7.1 | 1530 | 52.0 0.6 | 0638 | 54.4 0.9 | 95 3 | 37 11 | 1.7 | 9.7 1.3 | 1421 | S | 180 | 0.00 | 0.00 | 0.214 0.016 | 672 4 | 60 10 |
| Wappo Hill Floor | 8/4/26 | 87.2 6.7 | 1536 | 52.4 0.3 | 0631 | 56.7 0.3 | 100 0 | 40 10 | 3.0 | 15.3 2.5 | 1659 | ESE | 110 | 0.00 | 0.00 | 0.213 0.017 | 641 6 | 20 10 |
| Stags Leap Dist (Chimney Rock) | 8/4/26 | 86.2 7.8 | 1515 | 53.0 0.2 | 0629 | 58.1 0.0 | 98 1 | 45 12 | 2.8 | 14.6 2.2 | 1640 | SE | 143 | 0.00 | 0.00 | 0.190 0.018 | 576 4 | 50 10 |
| Yountville-South (Ranch 87) | 8/4/26 | 89.3 5.4 | 1507 | 53.6 0.6 | 0623 | 56.8 0.1 | 92 0 | 37 8 | 1.9 | 12.1 1.0 | 1641 | S | 178 | 0.00 | 0.00 | 0.205 0.013 | 633 2 | 0 0 |
| Yountville-SE (Ranch 85) | 8/4/26 | 85.2 7.1 | 1539 | 53.2 1.6 | 0610 | 57.3 0.1 | 94 0 | 43 12 | 2.7 | 14.5 1.8 | 1623 | SSE | 147 | 0.00 | 0.00 | - | 0 0 | 80 20 |
| Oak Knoll-East (Ranch 53) | 8/4/26 | 85.8 6.6 | 1453 | 54.2 0.0 | 0613 | 55.8 0.1 | 91 2 | 38 9 | 2.7 | 13.8 0.2 | 1506 | SE | 130 | 0.00 | 0.00 | 0.214 0.016 | 668 3 | 20 10 |
| Napa-NW (Ranch 54) | 8/4/26 | 89.2 4.9 | 1553 | 53.9 0.6 | 0541 | 56.3 0.5 | 92 2 | 36 6 | 0.6 | 7.1 1.5 | 1138 | SSW | 196 | 0.00 | 0.00 | - | 0 0 | 0 0 |
| Napa-North (Ranch 29) | 8/4/26 | 83.4 5.4 | 1441 | 54.6 0.5 | 0632 | 57.0 0.1 | 100 0 | 44 12 | 1.8 | 12.4 0.5 | 1624 | S | 170 | 0.00 | 0.00 | 0.133 0.013 | 380 6 | 80 20 |
| Max | 101.3 | - | 60.4 | - | 58.8 | 100 | 45 | 4.1 | 19.4 | - | - | 0.00 | 0.00 | 0.224 | 672 | - | |
| Avg | - | - | - | - | 56.5 | - | - | 2.4 | - | - | - | - | - | - | - | - | |
| Min | 83.4 | - | 52.0 | - | 54.4 | 85 | 24 | 0.6 | 7.1 | - | - | 0.00 | 0.00 | 0.133 | 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 | 8/4/26 | 94.1 1.4 | 1605 | 60.6 5.8 | 0514 | 54.3 3.2 | 80 17 | 29 7 | 1.5 | 9.5 2.2 | 1508 | S | 172 | 0.00 | 0.00 | 0.200 0.143 | 607 410 | 60 20 |
| Mount George (Napa East) | 8/4/26 | 84.0 7.2 | 1402 | 51.7 0.5 | 0608 | 55.1 0.7 | 92 1 | 40 14 | 1.8 | 11.1 1.1 | 1532 | WSW | 245 | 0.00 | 0.00 | 0.199 0.014 | 637 4 | 80 20 |
| Napa-East (Palmaz 300') | 8/4/26 | 89.1 6.7 | 1436 | 53.8 0.5 | 0616 | 55.8 0.4 | 100 6 | 35 10 | 1.8 | 11.2 0.9 | 1509 | SW | 225 | 0.00 | 0.00 | 0.182 0.012 | 532 2 | 0 10 |
| Napa-East (Palmaz 1200') | 7/3/26 | 79.0 6.0 | 1616 | 49.0 3.8 | 0539 | 47.1 0.2 | 100 0 | 45 38 | 2.0 | 12.7 4.5 | 1533 | NW | 313 | - | - | 0.192 0.009 | 656 3 | 30 20 |
| Napa-East (Palmaz 1400') | 8/4/26 | 85.3 6.9 | 1514 | 55.2 0.4 | 0058 | 55.2 1.3 | 95 10 | 39 14 | 2.7 | 11.4 1.3 | 1614 | SSW | 208 | 0.00 | 0.00 | 0.203 0.024 | 644 1 | 80 20 |
| Wooden Valley | 8/4/26 | 89.6 11.0 | 1528 | 61.0 5.6 | 0058 | 54.0 2.2 | 71 13 | 32 16 | 4.8 | 15.2 2.1 | 0457 | SW | 234 | 0.00 | 0.00 | 0.240 0.014 | 660 1 | 20 10 |
| Napa-West Upper (Truchard) | 8/4/26 | 85.0 5.8 | 1447 | 54.4 2.1 | 0624 | 37.3 19.1 | 100 0 | 0 0 | 3.1 | 15.3 2.5 | 1504 | SE | 142 | 0.00 | 0.00 | 0.213 0.019 | 650 6 | 60 20 |
| Napa-West Lower (Truchard) | 8/4/26 | 84.5 6.5 | 1453 | 48.4 0.4 | 0607 | 54.6 0.1 | 94 0 | 41 12 | - | - | - | - | - | - | - | - | 80 20 |
| Napa-South (Toyon Farms) | 8/4/26 | 82.1 6.7 | 1547 | 55.0 1.4 | 0518 | 58.3 1.2 | 100 1 | 51 11 | 3.5 | 15.2 2.8 | 1632 | S | 177 | 0.00 | 0.00 | 0.110 0.013 | 321 4 | 100 20 |
| Toyon Remote 1 | 8/4/26 | 81.5 7.4 | 1428 | 51.0 0.8 | 0542 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 8/4/26 | 81.4 5.9 | 1410 | 51.0 0.4 | 0621 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 8/4/26 | 82.7 6.4 | 1513 | 50.3 1.6 | 0555 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 8/4/26 | 83.7 4.1 | 1528 | 52.5 1.9 | 0530 | 55.4 0.9 | 95 2 | 42 7 | 3.1 | 14.8 1.7 | 1607 | SSE | 148 | 0.00 | 0.00 | 0.200 0.017 | 638 9 | 80 20 |
| Carneros (Saintsbury) | 8/4/26 | 80.0 5.8 | 1548 | 50.9 1.0 | 0609 | 55.0 1.2 | 100 3 | 48 11 | 4.7 | 17.1 4.3 | 1643 | S | 174 | 0.00 | 0.00 | - | - | 100 0 |
| Suscol Lower (Ranch 35) | 8/4/26 | 81.2 7.2 | 1607 | 54.8 1.6 | 0053 | 55.6 1.1 | 100 12 | 44 12 | 4.8 | 15.9 1.3 | 1612 | SW | 221 | 0.00 | 0.00 | 0.193 0.023 | 586 10 | 90 20 |
| Suscol Mtn (Ranch 93) | 8/4/26 | 85.6 9.8 | 1429 | 55.6 3.1 | 0537 | 56.3 2.5 | 97 9 | 41 16 | 3.8 | 13.4 2.0 | 1247 | WNW | 282 | 0.00 | 0.00 | - | - | 80 20 |
| Suscol Upper (Ranch 92) | 8/4/26 | 83.0 8.8 | 1443 | 55.8 2.5 | 0458 | 27.6 26.0 | 100 9 | 0 26 | 1.7 | 12.5 2.0 | 2058 | SSW | 196 | 0.00 | 0.00 | - | - | 80 20 |
| Stanly (Ranch 45) | 8/4/26 | 80.1 4.7 | 1519 | 51.9 0.4 | 0520 | 55.5 1.1 | 93 0 | 48 9 | 5.2 | 16.7 2.5 | 1614 | WNW | 291 | 0.00 | 0.00 | 0.211 0.020 | 678 7 | 100 0 |
| Carneros Upper (Ranch 81) | 8/4/26 | 83.1 6.1 | 1444 | 56.2 1.1 | 0611 | 55.2 0.5 | - | - | 6.4 | 21.4 6.8 | 2133 | WSW | 253 | - | - | - | - | 80 20 |
| Carneros (Mitsuko) | 8/4/26 | 80.8 4.9 | 1534 | 48.2 1.3 | 0605 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| Carneros Lower (Ranch 81) | 8/4/26 | 82.4 6.9 | 1454 | 52.4 1.9 | 0552 | 55.7 0.0 | 94 6 | 44 44 | 2.1 | 13.7 1.8 | 1701 | SSE | 165 | 0.00 | 0.00 | 0.195 0.017 | 628 6 | 90 20 |
| Carneros (Milton Rd) | 8/4/26 | 79.8 5.5 | 1451 | 49.5 1.3 | 0543 | 55.0 1.6 | 93 1 | 47 8 | - | - | - | - | 0.00 | 0.00 | - | - | 100 0 |
| Max | 94.1 | - | 61.0 | - | 58.3 | 100 | 51 | 6.4 | 21.4 | - | - | 0.00 | 0.00 | 0.240 | 678 | - | |
| Avg | - | - | - | - | 52.7 | - | - | 3.4 | - | - | - | - | - | - | - | - | |
| Min | 79.8 | - | 48.2 | - | 27.6 | 71 | 0 | 1.5 | 9.5 | - | - | 0.00 | 0.00 | 0.110 | 321 | - |