| 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 | 8/26/26 | 92.1 3.1 | 1632 | 51.7 3.5 | 0550 | - | - | - | - | - | - | - | 0.00 | 0.00 | - | - | 20 10 |
| Pope Valley (Weeks Lake) | 8/26/26 | 96.9 3.2 | 1647 | 40.1 8.3 | 0647 | 41.5 2.7 | 100 9 | 7 5 | 1.4 0.5 | 10.5 5.7 | 1428 | WSW | 243 | 0.00 | 0.00 | 0.195 0.001 | 564 35 | 0 0 |
| Dollarhide Base | 8/26/26 | 100.4 2.8 | 1627 | 50.4 5.2 | 0553 | 46.8 2.4 | 91 2 | 14 3 | 2.5 0.5 | 14.1 1.5 | 1701 | WSW | 255 | 0.00 | 0.00 | 0.238 0.002 | 619 11 | 0 0 |
| Dollarhide 1AS Remote | 8/26/26 | 102.1 3.8 | 1622 | 41.0 9.2 | 0623 | 43.9 3.0 | 89 4 | 13 3 | 1.7 0.5 | 14.2 1.3 | 1719 | WSW | 239 | - | - | - | - | 0 0 |
| Dollarhide 16A Remote | 8/26/26 | 100.3 2.5 | 1514 | 47.8 7.1 | 0707 | 46.8 2.5 | 92 1 | 13 3 | - | - | - | - | - | - | - | - | 0 0 |
| Dollarhide 18A Remote | 8/26/26 | 99.6 4.6 | 1512 | 39.1 9.5 | 0627 | 44.2 2.9 | 93 1 | 14 2 | - | - | - | - | - | - | - | - | 0 0 |
| Hardin Rd (Eakle) | 8/26/26 | 98.9 4.3 | 1551 | 44.4 8.4 | 0646 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Angwin | 8/26/26 | 90.3 3.9 | 1626 | 65.9 0.2 | 0221 | 32.7 2.8 | 35 1 | 9 6 | 2.7 0.2 | 12.8 1.0 | 1508 | S | 180 | 0.00 | 0.00 | 0.072 0.000 | 0 0 | 100 0 |
| Lower Angwin (Pioneer) | 8/26/26 | 90.9 2.6 | 1618 | 40.5 4.2 | 0602 | - | - | - | 1.5 0.1 | 11.2 1.2 | 1457 | W | 270 | - | - | - | - | 90 10 |
| Las Posadas (Cal Fire) | 8/26/26 | 94.5 4.1 | 1608 | 50.6 1.8 | 0350 | 45.0 2.1 | 83 15 | 15 1 | 6.4 1.1 | 21.1 0.6 | 2058 | WSW | 256 | 0.00 | 0.00 | 0.256 0.015 | 550 13 | - |
| Deer Park | 8/26/26 | 98.5 3.7 | 1556 | 53.3 1.6 | 0612 | 46.6 1.7 | 82 13 | 9 1 | 2.8 0.2 | 12.9 0.7 | 1538 | SSW | 212 | 0.00 | 0.00 | 0.183 0.010 | 415 6 | 0 0 |
| Lower Chiles Valley (Brown) | 8/26/26 | 94.8 3.0 | 1552 | 41.8 12.6 | 0637 | 42.5 4.6 | 95 5 | 8 6 | 2.8 1.4 | 14.1 1.4 | 1601 | NW | 311 | 0.00 | 0.00 | 0.222 0.012 | 608 43 | 0 0 |
| Moss Creek Vineyard/Reservior | 8/26/26 | 101.2 3.6 | 1521 | 48.8 6.5 | 0705 | 42.7 4.0 | 86 4 | 5 2 | - | - | - | - | 0.00 | 0.00 | - | - | 0 0 |
| Max | 102.1 | - | 65.9 | - | 46.8 | 100 | 15 | 6.4 | 21.1 | - | - | 0.00 | 0.00 | 0.256 | 619 | - | |
| Avg | - | - | - | - | 43.3 | - | - | 2.7 | - | - | - | - | - | - | - | - | |
| Min | 90.3 | - | 39.1 | - | 32.7 | 35 | 5 | 1.4 | 10.5 | - | - | 0.00 | 0.00 | 0.072 | 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 | 8/26/26 | 100.8 5.5 | 1500 | 46.0 8.9 | 0632 | 48.6 3.4 | 94 1 | 13 5 | - | - | - | - | 0.00 | 0.00 | - | - | 0 0 |
| Diamond Mtn (Schramsberg) | 8/26/26 | 95.5 2.9 | 1525 | 54.4 1.7 | 0611 | 45.0 1.3 | 78 22 | 8 0 | - | - | - | - | 0.00 | 0.00 | - | - | 0 0 |
| Diamond Mtn (McEachran) | 8/26/26 | 97.1 3.4 | 1543 | 52.3 1.9 | 0702 | 44.2 3.2 | 82 15 | 8 4 | - | - | - | - | - | - | - | - | 0 0 |
| St. Helena-North | 8/26/26 | 99.7 3.1 | 1510 | 48.1 8.5 | 0636 | 42.8 3.4 | 85 2 | 6 0 | 2.0 | 11.8 1.1 | 1515 | S | 191 | 0.00 | 0.00 | 0.188 0.006 | 527 29 | 0 0 |
| St. Helena (NVV Office) | 8/26/26 | 99.9 2.4 | 1622 | 48.7 8.4 | 0615 | - | - | - | 1.1 | 8.3 2.2 | 1700 | W | 264 | 0.00 | 0.00 | - | - | 0 0 |
| Tiara Fria (East St. Helena) | 8/26/26 | 96.3 1.8 | 1553 | 46.2 9.8 | 0639 | 48.0 2.1 | 88 1 | 13 1 | 1.4 | 11.4 1.2 | 1650 | ESE | 115 | 0.00 | 0.00 | - | - | 0 0 |
| Prisoner Winery | 8/26/26 | 99.3 4.1 | 1623 | 45.8 6.8 | 0511 | 49.1 0.7 | 94 2 | 15 7 | 1.1 | 7.2 2.8 | 1627 | SE | 139 | 0.00 | 0.00 | 0.070 0.022 | 142 50 | 0 0 |
| Rutherford Hill Estate | 8/26/26 | 98.1 4.6 | 1512 | 52.0 3.8 | 0658 | 50.8 0.2 | 93 1 | 15 2 | 1.5 | 12.5 1.5 | 1644 | S | 191 | 0.00 | 0.00 | 0.176 0.010 | 510 18 | 0 0 |
| Rutherford-North (Mee Ln) | 8/26/26 | 95.7 1.0 | 1539 | 43.4 8.6 | 0648 | 48.8 1.6 | 90 2 | 19 7 | 2.3 | 12.9 1.3 | 1639 | SE | 138 | 0.00 | 0.00 | 0.193 0.020 | 505 25 | 0 0 |
| Rutherford (STS) | 8/26/26 | 98.1 3.6 | 1516 | 42.4 10.4 | 0629 | 52.0 1.4 | 93 2 | 22 5 | 1.6 | 13.1 1.5 | 1620 | ESE | 119 | 0.00 | 0.00 | 0.209 0.015 | 607 43 | 0 0 |
| Oakville-NE (Ranch 88) | 8/26/26 | 96.1 2.7 | 1529 | 42.3 10.0 | 0643 | 47.1 3.5 | 86 2 | 18 3 | 1.6 | 11.7 0.4 | 1613 | S | 188 | 0.00 | 0.00 | 0.186 0.017 | 516 40 | 90 10 |
| OV561-East | 8/26/26 | 98.0 1.9 | 1611 | 45.4 9.7 | 0655 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Oakville | 8/26/26 | 92.0 2.2 | 1522 | 43.6 10.3 | 0633 | 49.2 3.0 | 91 1 | 20 0 | 2.7 | 13.8 0.2 | 1928 | SE | 146 | 0.00 | 0.00 | 0.215 0.026 | 586 56 | 80 10 |
| OV518-West | 8/26/26 | 92.0 2.4 | 1534 | 44.5 10.4 | 0644 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| To Kalon Remote (TKKE) | 8/26/26 | 96.2 1.0 | 1531 | 44.3 9.8 | 0622 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| To Kalon | 8/26/26 | 94.1 2.0 | 1646 | 45.7 8.3 | 0550 | 50.7 2.0 | 93 2 | 20 3 | 2.4 | 12.1 0.9 | 1518 | SE | 139 | 0.00 | 0.00 | 0.208 0.025 | 555 49 | 70 10 |
| To Kalon Remote (TKN5) | 8/26/26 | 96.8 2.6 | 1614 | 45.3 9.6 | 0641 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Yountville (Ranch 67) | 8/26/26 | 91.5 2.9 | 1503 | 43.7 10.4 | 0618 | 48.9 3.5 | 90 0 | 21 3 | 2.4 | 16.0 3.1 | 1623 | E | 95 | 0.00 | 0.00 | 0.213 0.021 | 641 47 | 80 10 |
| Stags Leap Dist (Silverado Vineyards) | 8/26/26 | 92.9 2.7 | 1625 | 44.3 10.2 | 0654 | 49.0 3.4 | 92 0 | 19 0 | 2.2 | 13.7 0.9 | 1601 | SSE | 163 | 0.00 | 0.00 | 0.214 0.029 | 594 58 | 90 10 |
| Borreo (Soda Canyon) | 8/26/26 | 91.1 4.5 | 1522 | 45.5 5.6 | 0653 | 48.0 2.7 | 96 2 | 23 1 | 1.8 | 10.6 0.8 | 1527 | SSE | 168 | 0.00 | 0.00 | 0.201 0.019 | 615 39 | 90 10 |
| Wappo Hill Floor | 8/26/26 | 92.5 2.4 | 1710 | 43.5 10.7 | 0638 | 50.0 3.9 | 100 0 | 19 0 | 2.0 | 12.4 0.6 | 1457 | SSE | 149 | 0.00 | 0.00 | 0.203 0.014 | 577 30 | 80 10 |
| Stags Leap Dist (Chimney Rock) | 8/26/26 | 91.0 2.7 | 1556 | 43.5 10.3 | 0658 | 52.8 3.2 | 97 1 | 29 2 | 1.9 | 11.5 1.6 | 1512 | S | 175 | 0.00 | 0.00 | 0.183 0.017 | 534 48 | 80 10 |
| Yountville-South (Ranch 87) | 8/26/26 | 93.5 2.5 | 1641 | 44.9 9.1 | 0639 | 51.3 2.6 | 95 5 | 19 0 | 1.3 | 10.4 0.9 | 1511 | SSE | 158 | 0.00 | 0.00 | 0.182 0.005 | 541 7 | 0 0 |
| Yountville-SE (Ranch 85) | 8/26/26 | 90.4 1.8 | 1545 | 45.0 10.3 | 0643 | 51.9 2.6 | 95 1 | 25 4 | 2.0 | 12.7 0.9 | 1611 | SSE | 156 | 0.00 | 0.00 | - | 0 0 | 80 10 |
| Oak Knoll-East (Ranch 53) | 8/26/26 | 92.9 3.3 | 1645 | 45.7 9.4 | 0646 | 50.1 2.5 | 88 4 | 16 0 | 1.7 | 12.6 0.4 | 1525 | S | 186 | 0.00 | 0.00 | 0.203 0.019 | 611 65 | 80 10 |
| Napa-NW (Ranch 54) | 8/26/26 | 95.2 1.5 | 1652 | 47.0 6.3 | 0640 | 50.2 2.1 | 87 6 | 14 3 | 0.5 | 6.9 2.2 | 1603 | E | 94 | 0.00 | 0.00 | - | 0 0 | 80 10 |
| Napa-North (Ranch 29) | 8/26/26 | 90.2 3.7 | 1653 | 46.8 9.1 | 0654 | 52.6 2.6 | 100 0 | 29 2 | 1.3 | 11.6 0.3 | 1553 | S | 185 | 0.00 | 0.00 | 0.128 0.013 | 350 24 | 90 10 |
| Max | 100.8 | - | 54.4 | - | 52.8 | 100 | 29 | 2.7 | 16.0 | - | - | 0.00 | 0.00 | 0.215 | 641 | - | |
| Avg | - | - | - | - | 49.1 | - | - | 1.7 | - | - | - | - | - | - | - | - | |
| Min | 90.2 | - | 42.3 | - | 42.8 | 78 | 6 | 0.5 | 6.9 | - | - | 0.00 | 0.00 | 0.070 | 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 | 8/26/26 | 92.0 3.8 | 1434 | 61.1 5.3 | 0329 | 41.8 5.1 | 54 31 | 10 7 | 1.3 | 8.9 2.0 | 1507 | SSE | 157 | 0.00 | 0.00 | 0.219 0.017 | 705 6 | 100 10 |
| Mount George (Napa East) | 8/26/26 | 88.9 7.2 | 1515 | 48.1 7.4 | 0620 | 51.7 4.0 | 96 1 | 26 5 | 1.2 | 8.0 0.4 | 1446 | W | 260 | 0.00 | 0.00 | 0.188 0.018 | 591 64 | 80 10 |
| Napa-East (Palmaz 300') | 8/25/26 | 90.2 3.3 | 1549 | 54.9 1.7 | 0054 | 53.3 1.5 | 95 5 | 27 7 | 0.4 | 8.6 1.8 | 1530 | SW | 230 | 0.00 | 0.00 | 0.136 0.012 | 425 56 | 60 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') | 8/26/26 | 88.5 4.5 | 1452 | 51.5 0.9 | 0509 | 48.5 3.0 | 87 13 | 25 7 | 2.4 | 11.5 0.4 | 1623 | SW | 224 | 0.00 | 0.03 | 0.196 0.023 | 584 35 | 90 10 |
| Wooden Valley | 8/26/26 | 93.1 4.3 | 1454 | 47.0 9.0 | 0658 | 45.0 4.0 | 88 1 | 15 6 | 3.0 | 14.5 0.9 | 1515 | WNW | 285 | 0.00 | 0.00 | 0.222 0.028 | 598 44 | 40 10 |
| Napa-West Upper (Truchard) | 8/26/26 | 93.2 3.0 | 1643 | 51.6 1.6 | 0659 | 48.7 26.2 | 100 0 | 0 0 | 2.7 | 14.5 0.1 | 1651 | SSE | 156 | 0.00 | 0.00 | 0.216 0.024 | 602 64 | 80 10 |
| Napa-West Lower (Truchard) | 8/26/26 | 92.9 3.2 | 1649 | 42.6 7.4 | 0618 | 49.6 1.6 | 96 2 | 17 1 | - | - | - | - | - | - | - | - | 80 10 |
| Napa-South (Toyon Farms) | 8/26/26 | 91.3 4.0 | 1701 | 51.0 4.8 | 0713 | 56.0 0.1 | 99 2 | 24 5 | 2.8 | 14.0 0.2 | 1652 | WSW | 240 | 0.00 | 0.00 | 0.117 0.009 | 278 5 | 80 10 |
| Toyon Remote 1 | 8/26/26 | 92.7 2.4 | 1657 | 45.6 6.2 | 0655 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 8/26/26 | 90.9 3.7 | 1653 | 44.6 8.4 | 0628 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 8/26/26 | 94.1 3.0 | 1702 | 45.1 6.3 | 0656 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 8/26/26 | 91.8 2.6 | 1625 | 46.4 7.9 | 0558 | 50.8 1.5 | 94 2 | 18 3 | 2.4 | 13.7 1.5 | 1506 | SSE | 153 | 0.00 | 0.00 | 0.193 0.016 | 589 52 | 80 10 |
| Carneros (Saintsbury) | 8/26/26 | 90.3 3.8 | 1654 | 45.5 7.3 | 0652 | 51.8 1.0 | 96 4 | 17 7 | 3.2 | 13.9 0.5 | 1748 | SW | 226 | 0.00 | 0.00 | - | - | 90 10 |
| Suscol Lower (Ranch 35) | 8/26/26 | 87.8 4.9 | 1444 | 49.2 6.3 | 0646 | 53.0 1.0 | 100 7 | 28 2 | 4.1 | 13.2 0.4 | 1453 | SSW | 212 | 0.00 | 0.00 | 0.194 0.020 | 556 65 | 90 10 |
| Suscol Mtn (Ranch 93) | 8/26/26 | 91.0 5.3 | 1507 | 53.0 0.5 | 0647 | 53.2 0.6 | 97 3 | 25 7 | 3.6 | 14.5 0.8 | 1628 | WNW | 293 | 0.00 | 0.00 | - | - | 90 10 |
| Suscol Upper (Ranch 92) | 8/26/26 | 88.9 6.8 | 1517 | 52.5 1.7 | 0709 | 38.0 18.1 | 100 0 | 0 0 | 1.7 | 11.0 3.0 | 1616 | SSW | 205 | 0.00 | 0.00 | - | - | 90 10 |
| Stanly (Ranch 45) | 8/25/26 | 85.3 8.1 | 1757 | 54.4 4.5 | 0409 | 53.8 0.8 | 92 2 | 26 22 | 4.4 | 15.5 0.3 | 1728 | SSW | 205 | 0.00 | 0.00 | 0.196 0.004 | 578 61 | 100 0 |
| Carneros Upper (Ranch 81) | 8/26/26 | 89.4 0.9 | 1355 | 53.7 2.1 | 0434 | 51.7 0.1 | - | - | 4.8 | 20.5 2.3 | 2052 | W | 263 | - | - | - | - | 80 10 |
| Carneros (Mitsuko) | 8/26/26 | 90.6 1.7 | 1651 | 42.8 8.0 | 0620 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| Carneros Lower (Ranch 81) | 8/26/26 | 92.8 3.9 | 1648 | 46.9 9.4 | 0656 | 50.7 2.9 | 100 7 | 0 19 | 1.4 | 12.2 0.7 | 1452 | SSE | 156 | 0.00 | 0.00 | 0.029 0.009 | 1 8 | 80 10 |
| Carneros (Milton Rd) | 8/26/26 | 88.9 2.9 | 1728 | 44.6 6.3 | 0633 | 52.0 1.7 | 93 1 | 21 5 | - | - | - | - | 0.00 | 0.00 | - | - | 90 10 |
| Max | 94.1 | - | 61.1 | - | 56.0 | 100 | 28 | 4.8 | 20.5 | - | - | 0.00 | 0.03 | 0.222 | 705 | - | |
| Avg | - | - | - | - | 49.5 | - | - | 2.7 | - | - | - | - | - | - | - | - | |
| Min | 87.8 | - | 42.6 | - | 38.0 | 54 | 0 | 1.2 | 8.0 | - | - | 0.00 | 0.00 | 0.029 | 1 | - |