| 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 | 8/24/26 | 87.8 4.8 | 1212 | 55.0 0.1 | 0548 | - | - | - | - | - | - | - | 0.00 | 0.00 | - | - | 40 10 |
| Pope Valley (Weeks Lake) | 8/24/26 | 92.5 5.8 | 1612 | 47.7 3.3 | 0638 | 47.7 2.7 | 92 8 | 17 8 | 1.9 0.6 | 12.5 1.5 | 1239 | ESE | 112 | 0.00 | 0.00 | 0.198 0.003 | 551 1 | 0 0 |
| Dollarhide Base | 8/24/26 | 95.7 5.7 | 1523 | 54.9 1.8 | 0641 | 53.0 2.3 | 91 0 | 19 3 | 3.3 0.9 | 14.2 1.5 | 1854 | SSW | 207 | 0.00 | 0.00 | 0.234 0.008 | 599 25 | 0 0 |
| Dollarhide 1AS Remote | 8/24/26 | 97.0 5.4 | 1549 | 49.0 3.8 | 0654 | 50.4 2.5 | 85 4 | 17 3 | 2.9 0.8 | 14.8 1.4 | 2119 | SSW | 202 | - | - | - | - | 0 0 |
| Dollarhide 16A Remote | 8/24/26 | 94.3 7.5 | 1447 | 54.8 3.6 | 0620 | 53.5 2.8 | 92 1 | 23 9 | - | - | - | - | - | - | - | - | 0 0 |
| Dollarhide 18A Remote | 8/24/26 | 93.8 5.9 | 1608 | 46.9 3.2 | 0645 | 50.3 2.3 | 92 1 | 20 6 | - | - | - | - | - | - | - | - | 0 0 |
| Hardin Rd (Eakle) | 8/24/26 | 94.7 5.5 | 1516 | 51.3 2.8 | 0640 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Angwin | 8/24/26 | 84.5 6.2 | 1514 | 67.9 1.1 | 0407 | 42.4 3.0 | 46 5 | 18 10 | 3.2 0.4 | 13.9 1.5 | 1906 | SSE | 150 | 0.00 | 0.00 | 0.071 0.014 | 0 0 | 100 0 |
| Lower Angwin (Pioneer) | 8/24/26 | 85.4 6.3 | 1546 | 45.3 1.5 | 0643 | - | - | - | 1.7 0.4 | 11.2 1.8 | 1812 | WSW | 246 | - | - | - | - | 100 10 |
| Las Posadas (Cal Fire) | 8/24/26 | 87.6 7.4 | 1443 | 53.7 5.4 | 0654 | 53.5 7.9 | 98 23 | 32 20 | 7.3 1.5 | 17.5 1.4 | 1947 | SW | 233 | 0.00 | 0.00 | 0.214 0.039 | 536 9 | - |
| Deer Park | 8/24/26 | 91.0 7.3 | 1550 | 57.4 1.8 | 0727 | 55.1 3.5 | 95 6 | 30 19 | 2.7 0.0 | 11.7 0.6 | 1622 | SSE | 155 | 0.00 | 0.00 | 0.155 0.027 | 391 24 | 0 0 |
| Lower Chiles Valley (Brown) | 8/24/26 | 90.5 4.7 | 1631 | 56.2 11.7 | 0658 | 53.9 7.6 | 100 4 | 19 7 | 3.9 1.8 | 16.3 1.4 | 1518 | WNW | 295 | 0.00 | 0.00 | 0.204 0.007 | 582 17 | 0 0 |
| Moss Creek Vineyard/Reservior | 8/24/26 | 96.7 3.3 | 1332 | 54.8 2.9 | 0639 | 50.0 2.9 | 92 5 | 9 4 | - | - | - | - | 0.00 | 0.00 | - | - | 0 0 |
| Max | 97.0 | - | 67.9 | - | 55.1 | 100 | 32 | 7.3 | 17.5 | - | - | 0.00 | 0.00 | 0.234 | 599 | - | |
| Avg | - | - | - | - | 51.0 | - | - | 3.4 | - | - | - | - | - | - | - | - | |
| Min | 84.5 | - | 45.3 | - | 42.4 | 46 | 9 | 1.7 | 11.2 | - | - | 0.00 | 0.00 | 0.071 | 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 | 8/24/26 | 93.3 9.1 | 1455 | 53.9 4.8 | 0315 | 55.1 3.2 | 93 2 | 31 16 | - | - | - | - | 0.00 | 0.00 | - | - | 0 0 |
| Diamond Mtn (Schramsberg) | 8/24/26 | 89.9 5.1 | 1535 | 54.4 3.2 | 0655 | 52.1 3.5 | 100 14 | 23 13 | - | - | - | - | 0.00 | 0.00 | - | - | 0 0 |
| Diamond Mtn (McEachran) | 8/24/26 | 91.9 5.3 | 1641 | 55.6 0.0 | 0727 | 52.3 4.0 | 97 16 | 23 13 | - | - | - | - | - | - | - | - | 0 0 |
| St. Helena-North | 8/24/26 | 90.8 7.9 | 1604 | 56.7 5.4 | 0241 | 53.2 4.3 | 86 1 | 24 16 | 2.4 | 12.3 0.2 | 1634 | SSE | 158 | 0.00 | 0.00 | 0.182 0.023 | 500 25 | 0 0 |
| St. Helena (NVV Office) | 8/24/26 | 89.8 9.0 | 1538 | 58.5 7.1 | 0101 | - | - | - | 1.6 | 11.5 0.8 | 1502 | E | 85 | 0.00 | 0.00 | - | - | 0 0 |
| Tiara Fria (East St. Helena) | 8/24/26 | 87.7 8.8 | 1534 | 56.7 7.7 | 0059 | 56.4 4.2 | 92 3 | 36 20 | 2.4 | 11.5 0.6 | 1552 | SE | 126 | 0.00 | 0.00 | - | - | 0 0 |
| Prisoner Winery | 8/24/26 | 91.2 10.3 | 1543 | 54.1 5.8 | 0059 | 56.5 3.4 | 97 1 | 32 18 | 1.4 | 7.9 0.9 | 1816 | SE | 141 | 0.00 | 0.00 | 0.051 0.015 | 141 134 | 0 0 |
| Rutherford Hill Estate | 8/24/26 | 88.7 9.2 | 1519 | 56.4 1.5 | 0059 | 56.5 2.5 | 94 2 | 33 16 | 1.5 | 12.1 0.4 | 1603 | S | 175 | 0.00 | 0.00 | 0.164 0.009 | 500 15 | 0 0 |
| Rutherford-North (Mee Ln) | 8/24/26 | 86.8 9.2 | 1603 | 53.3 6.3 | 0144 | 55.8 3.4 | 91 1 | 37 22 | 3.1 | 15.3 0.9 | 1603 | ESE | 112 | 0.00 | 0.00 | 0.174 0.024 | 475 16 | 0 0 |
| Rutherford (STS) | 8/24/26 | 90.0 9.8 | 1510 | 53.2 7.2 | 0132 | 58.1 2.8 | 92 0 | 40 16 | 2.2 | 12.8 1.2 | 1324 | E | 95 | 0.00 | 0.00 | 0.190 0.023 | 564 30 | 0 0 |
| Oakville-NE (Ranch 88) | 8/24/26 | 87.9 9.0 | 1524 | 54.0 8.5 | 0135 | 54.6 4.4 | 88 4 | 34 17 | 2.6 | 16.0 0.9 | 1604 | S | 171 | 0.00 | 0.00 | 0.177 0.021 | 487 30 | 100 10 |
| OV561-East | 8/24/26 | 88.4 9.9 | 1638 | 56.6 8.0 | 0059 | - | - | - | - | - | - | - | - | - | - | - | 0 10 |
| Oakville | 8/24/26 | 83.7 10.0 | 1529 | 55.4 8.5 | 0059 | 56.1 3.6 | 92 2 | 41 18 | 4.0 | 17.0 2.0 | 1534 | SSE | 156 | 0.00 | 0.00 | 0.191 0.026 | 546 27 | 100 10 |
| OV518-West | 8/24/26 | 84.4 8.3 | 1501 | 56.9 8.8 | 0043 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| To Kalon Remote (TKKE) | 8/24/26 | 88.0 9.9 | 1504 | 54.3 6.7 | 0141 | - | - | - | - | - | - | - | - | - | - | - | 0 10 |
| To Kalon | 8/24/26 | 85.2 9.7 | 1542 | 55.4 6.3 | 0154 | 56.8 2.6 | 94 2 | 40 16 | 3.6 | 15.9 1.4 | 1542 | SSE | 163 | 0.00 | 0.00 | 0.189 0.030 | 530 49 | 90 20 |
| To Kalon Remote (TKN5) | 8/24/26 | 89.7 7.5 | 1530 | 55.3 7.2 | 0149 | - | - | - | - | - | - | - | - | - | - | - | 0 10 |
| Yountville (Ranch 67) | 8/24/26 | 83.0 8.6 | 1536 | 54.8 8.4 | 0544 | 55.0 3.0 | 91 0 | 41 16 | 3.6 | 17.2 2.9 | 1816 | SSE | 154 | 0.00 | 0.00 | 0.189 0.021 | 588 21 | 100 10 |
| Stags Leap Dist (Silverado Vineyards) | 8/24/26 | 83.7 9.3 | 1612 | 54.3 7.5 | 0555 | 55.1 3.0 | 91 2 | 39 16 | 3.1 | 18.6 4.6 | 1521 | SSE | 148 | 0.00 | 0.00 | 0.184 0.023 | 539 31 | 90 10 |
| Borreo (Soda Canyon) | 8/24/26 | 81.6 9.7 | 1501 | 50.2 1.1 | 0631 | 53.5 2.8 | 95 1 | 38 19 | 1.7 | 10.7 1.0 | 1545 | SE | 143 | 0.00 | 0.00 | 0.182 0.015 | 593 2 | 90 10 |
| Wappo Hill Floor | 8/24/26 | 84.4 8.9 | 1528 | 52.2 6.2 | 0611 | 56.3 3.5 | 100 8 | 40 15 | 3.0 | 13.6 1.0 | 1614 | ESE | 119 | 0.00 | 0.00 | 0.185 0.015 | 551 8 | 100 10 |
| Stags Leap Dist (Chimney Rock) | 8/24/26 | 82.7 9.7 | 1504 | 53.0 7.4 | 0549 | 57.8 2.8 | 97 1 | 48 17 | 2.8 | 12.8 0.7 | 1733 | SSE | 147 | 0.00 | 0.00 | 0.165 0.017 | 513 2 | 100 10 |
| Yountville-South (Ranch 87) | 8/24/26 | 86.1 9.4 | 1526 | 54.6 7.2 | 0612 | 56.6 2.9 | 100 0 | 38 15 | 1.8 | 11.1 0.3 | 1529 | SSE | 162 | 0.00 | 0.00 | 0.174 0.011 | 540 7 | 10 10 |
| Yountville-SE (Ranch 85) | 8/24/26 | 82.0 9.2 | 1537 | 54.2 6.6 | 0548 | 56.9 2.6 | 94 0 | 44 16 | 3.0 | 13.2 0.4 | 1517 | S | 188 | 0.00 | 0.00 | - | 0 0 | 100 10 |
| Oak Knoll-East (Ranch 53) | 8/24/26 | 83.3 8.7 | 1518 | 54.5 6.0 | 0550 | 55.7 2.6 | 92 2 | 39 17 | 2.5 | 13.7 2.2 | 1431 | SE | 128 | 0.00 | 0.00 | 0.186 0.011 | 591 13 | 100 10 |
| Napa-NW (Ranch 54) | 8/24/26 | 85.5 9.4 | 1717 | 56.3 6.3 | 0059 | 56.1 2.5 | 91 1 | 37 15 | 0.6 | 10.0 2.4 | 1339 | E | 98 | 0.00 | 0.00 | - | 0 0 | 100 10 |
| Napa-North (Ranch 29) | 8/24/26 | 81.0 9.4 | 1715 | 54.1 5.6 | 0553 | 56.7 2.0 | 100 0 | 44 16 | 1.9 | 12.0 0.5 | 1547 | S | 185 | 0.00 | 0.00 | 0.119 0.013 | 353 15 | 100 10 |
| Max | 93.3 | - | 58.5 | - | 58.1 | 100 | 48 | 4.0 | 18.6 | - | - | 0.00 | 0.00 | 0.191 | 593 | - | |
| Avg | - | - | - | - | 55.6 | - | - | 2.4 | - | - | - | - | - | - | - | - | |
| Min | 81.0 | - | 50.2 | - | 52.1 | 86 | 23 | 0.6 | 7.9 | - | - | 0.00 | 0.00 | 0.051 | 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 | 8/24/26 | 85.3 4.1 | 1605 | 58.5 5.9 | 0641 | 48.4 2.3 | 71 19 | 18 2 | 1.6 | 11.5 0.2 | 1520 | S | 180 | 0.00 | 0.00 | 0.222 0.002 | 783 65 | 100 0 |
| Mount George (Napa East) | 8/24/26 | 92.1 1.5 | 1517 | 52.9 3.2 | 0658 | 56.6 3.3 | 94 4 | 42 19 | 1.7 | 9.6 1.7 | 1605 | W | 275 | 0.00 | 0.00 | 0.182 0.000 | 589 22 | 100 10 |
| Napa-East (Palmaz 300') | 8/24/26 | 86.9 8.3 | 1431 | 53.2 2.2 | 0657 | 54.7 1.5 | 100 0 | 34 14 | 0.8 | 10.4 0.7 | 1701 | WSW | 239 | 0.00 | 0.00 | 0.148 0.011 | 481 21 | 70 20 |
| 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') | 8/24/26 | 80.3 9.0 | 1515 | 53.3 3.2 | 0511 | 54.4 3.8 | 100 9 | 41 20 | 3.4 | 11.8 0.4 | 1411 | WSW | 238 | 0.00 | 0.03 | 0.177 0.017 | 586 29 | 100 10 |
| Wooden Valley | 8/24/26 | 85.2 8.5 | 1449 | 56.8 7.6 | 0527 | 52.0 5.3 | 83 8 | 28 15 | 4.1 | 14.3 1.6 | 1327 | W | 266 | 0.00 | 0.00 | 0.205 0.004 | 599 35 | 60 20 |
| Napa-West Upper (Truchard) | 8/24/26 | 82.4 10.8 | 1501 | 54.4 0.4 | 0338 | 20.7 15.2 | 100 0 | 0 0 | 3.0 | 13.2 1.0 | 1707 | S | 173 | 0.00 | 0.00 | 0.191 0.014 | 596 16 | 100 10 |
| Napa-West Lower (Truchard) | 8/24/26 | 81.5 10.6 | 1453 | 49.0 3.2 | 0520 | 53.4 0.6 | 96 0 | 42 15 | - | - | - | - | - | - | - | - | 100 10 |
| Napa-South (Toyon Farms) | 8/24/26 | 79.6 10.9 | 1500 | 54.3 0.7 | 0610 | 57.6 0.8 | 100 0 | 52 15 | 3.3 | 13.6 0.3 | 1725 | SSE | 168 | 0.00 | 0.00 | 0.096 0.010 | 279 3 | 100 10 |
| Toyon Remote 1 | 8/24/26 | 79.4 10.8 | 1407 | 50.6 2.0 | 0521 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 8/24/26 | 79.0 9.5 | 1541 | 51.0 3.7 | 0513 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 8/24/26 | 80.0 10.8 | 1502 | 49.6 1.8 | 0525 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 8/24/26 | 81.0 9.3 | 1655 | 52.0 1.4 | 0523 | 55.0 0.5 | 96 1 | 42 13 | 2.6 | 13.2 2.0 | 1449 | SE | 131 | 0.00 | 0.00 | 0.177 0.011 | 583 17 | 100 10 |
| Carneros (Saintsbury) | 8/24/26 | 77.8 9.9 | 1641 | 49.4 2.5 | 0545 | 54.3 0.1 | 100 0 | 48 17 | 4.9 | 14.4 0.6 | 2009 | SW | 226 | 0.00 | 0.00 | - | - | 100 10 |
| Suscol Lower (Ranch 35) | 8/24/26 | 79.0 9.1 | 1447 | 51.7 0.1 | 0618 | 55.0 0.5 | 100 0 | 43 14 | 4.8 | 15.5 1.8 | 1445 | S | 187 | 0.00 | 0.00 | 0.173 0.012 | 544 16 | 100 10 |
| Suscol Mtn (Ranch 93) | 8/24/26 | 82.6 10.1 | 1541 | 53.8 2.9 | 0638 | 55.8 1.4 | 99 2 | 42 18 | 4.4 | 13.7 2.6 | 1059 | NW | 304 | 0.00 | 0.00 | - | - | 100 10 |
| Suscol Upper (Ranch 92) | 8/24/26 | 78.7 11.5 | 1544 | 54.4 1.4 | 0644 | 17.7 27.8 | 100 0 | 0 0 | 2.4 | 12.0 2.0 | 1518 | S | 190 | 0.00 | 0.00 | - | - | 100 20 |
| Stanly (Ranch 45) | 8/24/26 | 77.2 8.7 | 1602 | 49.9 1.1 | 0550 | 54.6 0.3 | 94 0 | 48 15 | 5.4 | 15.8 2.6 | 1703 | S | 185 | 0.00 | 0.00 | 0.192 0.011 | 639 30 | 100 0 |
| Carneros Upper (Ranch 81) | 8/24/26 | 81.4 10.8 | 1621 | 54.3 2.3 | 0712 | 54.4 0.7 | - | - | 7.6 | 21.7 7.0 | 2105 | WSW | 252 | - | - | - | - | 100 10 |
| Carneros (Mitsuko) | 8/24/26 | 79.3 9.3 | 1642 | 48.5 2.0 | 0544 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| Carneros Lower (Ranch 81) | 8/24/26 | 80.2 9.6 | 1556 | 53.1 3.8 | 0629 | 55.6 3.0 | 100 0 | 46 46 | 1.8 | 14.9 4.0 | 1152 | SSE | 158 | 0.00 | 0.00 | 0.049 0.079 | 80 241 | 100 10 |
| Carneros (Milton Rd) | 8/24/26 | 77.9 8.6 | 1455 | 49.1 0.8 | 0641 | 54.8 0.1 | 94 1 | 46 13 | - | - | - | - | 0.00 | 0.00 | - | - | 100 10 |
| Max | 92.1 | - | 58.5 | - | 57.6 | 100 | 52 | 7.6 | 21.7 | - | - | 0.00 | 0.03 | 0.222 | 783 | - | |
| Avg | - | - | - | - | 50.3 | - | - | 3.5 | - | - | - | - | - | - | - | - | |
| Min | 77.2 | - | 48.5 | - | 17.7 | 71 | 0 | 0.8 | 9.6 | - | - | 0.00 | 0.00 | 0.049 | 80 | - |