| 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 | 9/5/26 | 74.6 1.8 | 1535 | 45.1 2.2 | 0608 | - | - | - | - | - | - | - | 0.00 | 0.82 | - | - | 40 10 |
| Pope Valley (Weeks Lake) | 9/5/26 | 80.8 3.8 | 1518 | 38.4 2.4 | 0636 | 43.2 3.1 | 100 0 | 23 7 | 1.8 0.2 | 15.8 2.2 | 1413 | SW | 233 | 0.00 | 0.03 | 0.164 0.023 | 510 49 | 40 20 |
| Dollarhide Base | 9/5/26 | 83.9 2.7 | 1526 | 45.2 2.5 | 0635 | 47.7 3.1 | 100 0 | 27 3 | 3.0 0.5 | 16.8 0.1 | 1608 | WSW | 258 | 0.00 | 0.00 | 0.195 0.019 | 566 10 | 40 20 |
| Dollarhide 1AS Remote | 9/5/26 | 85.1 3.3 | 1537 | 38.7 3.7 | 0650 | 44.3 3.7 | 92 2 | 27 3 | 1.9 0.1 | 17.9 1.7 | 1249 | S | 183 | - | - | - | - | 60 20 |
| Dollarhide 16A Remote | 9/5/26 | 83.9 3.4 | 1519 | 44.1 2.4 | 0640 | 47.4 2.9 | 98 1 | 26 5 | - | - | - | - | - | - | - | - | 40 20 |
| Dollarhide 18A Remote | 9/5/26 | 83.5 2.1 | 1602 | 36.4 4.0 | 0627 | 43.9 3.6 | 96 3 | 27 4 | - | - | - | - | - | - | - | - | 40 20 |
| Hardin Rd (Eakle) | 9/5/26 | 83.2 4.4 | 1410 | 41.4 3.0 | 0632 | - | - | - | - | - | - | - | - | - | - | - | 40 20 |
| Angwin | 9/5/26 | 73.0 3.9 | 1522 | 51.5 3.9 | 0257 | 43.8 3.7 | 84 16 | 32 4 | 3.2 1.0 | 12.2 2.2 | 2125 | WNW | 299 | 0.00 | 0.30 | 0.038 0.018 | 0 0 | 40 10 |
| Lower Angwin (Pioneer) | 9/5/26 | 74.9 2.9 | 1512 | 37.5 1.1 | 0059 | - | - | - | 1.7 0.2 | 11.2 0.1 | 1541 | W | 264 | - | - | - | - | 70 20 |
| Las Posadas (Cal Fire) | 9/5/26 | 77.3 3.8 | 1525 | 47.8 0.5 | 0539 | 46.2 2.9 | 97 3 | 30 6 | 5.3 0.3 | 20.5 1.1 | 1402 | SSW | 197 | 0.00 | 0.23 | 0.182 0.027 | 514 18 | - |
| Deer Park | 9/5/26 | 82.9 5.1 | 1422 | 50.1 4.3 | 0716 | 46.3 3.3 | 93 1 | 23 7 | 3.4 0.5 | 15.4 0.8 | 1453 | SW | 236 | 0.00 | 0.04 | 0.153 0.019 | 387 16 | 60 20 |
| Lower Chiles Valley (Brown) | 9/5/26 | 80.8 3.5 | 1538 | 38.5 6.3 | 0652 | 43.5 5.0 | 100 0 | 24 6 | 2.0 0.1 | 14.6 0.5 | 1244 | WNW | 300 | 0.00 | 0.14 | 0.180 0.021 | 566 34 | 40 20 |
| Moss Creek Vineyard/Reservior | 9/5/26 | 84.3 4.0 | 1513 | 43.8 3.6 | 0650 | 45.3 4.1 | 98 0 | 18 10 | - | - | - | - | 0.00 | 0.04 | - | - | 40 20 |
| Max | 85.1 | - | 51.5 | - | 47.7 | 100 | 32 | 5.3 | 20.5 | - | - | 0.00 | 0.82 | 0.195 | 566 | - | |
| Avg | - | - | - | - | 45.2 | - | - | 2.8 | - | - | - | - | - | - | - | - | |
| Min | 73.0 | - | 36.4 | - | 43.2 | 84 | 18 | 1.7 | 11.2 | - | - | 0.00 | 0.00 | 0.038 | 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 | 9/5/26 | 84.8 4.4 | 1450 | 45.1 5.2 | 0619 | 48.3 3.6 | 99 0 | 27 2 | - | - | - | - | 0.00 | 0.09 | - | - | 60 20 |
| Diamond Mtn (Schramsberg) | 9/5/26 | 79.5 3.8 | 1429 | 50.2 1.0 | 0612 | 46.3 3.8 | 93 7 | 26 4 | - | - | - | - | 0.00 | 0.13 | - | - | 30 20 |
| Diamond Mtn (McEachran) | 9/5/26 | 79.7 3.8 | 1314 | 49.3 2.4 | 0645 | 47.0 3.1 | 95 2 | 27 4 | - | - | - | - | - | - | - | - | 20 20 |
| St. Helena-North | 9/5/26 | 83.5 3.2 | 1513 | 46.2 5.5 | 0650 | 44.7 4.1 | 91 2 | 22 4 | 1.8 | 11.2 1.8 | 1718 | W | 280 | 0.00 | 0.11 | 0.148 0.007 | 455 2 | 40 20 |
| St. Helena (NVV Office) | 9/5/26 | 84.2 4.2 | 1442 | 46.3 2.7 | 0654 | - | - | - | 1.3 | 14.2 2.1 | 1517 | W | 271 | 0.00 | 0.04 | - | - | 60 20 |
| Tiara Fria (East St. Helena) | 9/5/26 | 83.1 4.2 | 1608 | 43.2 6.0 | 0643 | 45.5 4.1 | 91 6 | 25 6 | 2.0 | 14.5 0.1 | 1828 | WSW | 257 | 0.00 | 0.02 | - | - | 60 20 |
| Prisoner Winery | 9/5/26 | 85.8 5.8 | 1429 | 44.0 4.2 | 0628 | 46.2 3.4 | 98 1 | 25 5 | 1.4 | 12.1 0.1 | 1401 | SSW | 212 | 0.00 | 0.06 | 0.031 0.003 | 0 15 | 40 20 |
| Rutherford Hill Estate | 9/5/26 | 85.5 4.2 | 1538 | 49.7 1.8 | 0658 | 48.0 3.6 | 100 0 | 26 5 | 1.8 | 12.5 1.3 | 1540 | WSW | 238 | 0.00 | 0.08 | 0.150 0.006 | 459 6 | 60 20 |
| Rutherford-North (Mee Ln) | 9/5/26 | 83.2 2.1 | 1443 | 41.6 2.4 | 0606 | 45.9 2.8 | 94 4 | 27 3 | 2.1 | 14.2 0.4 | 1356 | SE | 130 | 0.00 | 0.06 | 0.163 0.011 | 492 6 | 60 20 |
| Rutherford (STS) | 9/5/26 | 84.9 1.9 | 1435 | 41.1 4.5 | 0613 | 48.1 2.6 | 92 0 | 30 3 | 2.2 | 15.9 1.2 | 1641 | W | 267 | 0.00 | 0.05 | 0.185 0.011 | 565 6 | 100 0 |
| Oakville-NE (Ranch 88) | 9/5/26 | 84.1 3.2 | 1509 | 40.3 6.1 | 0633 | 43.7 5.7 | 89 11 | 23 4 | 1.3 | 13.5 0.4 | 1534 | SW | 232 | 0.00 | 0.04 | 0.157 0.016 | 480 25 | 100 0 |
| OV561-East | 9/5/26 | 83.9 1.3 | 1512 | 42.6 7.9 | 0653 | - | - | - | - | - | - | - | - | - | - | - | 60 20 |
| Oakville | 9/5/26 | 82.3 2.1 | 1459 | 42.2 5.8 | 0645 | 45.8 4.3 | 94 3 | 25 4 | 2.7 | 14.1 2.8 | 1424 | SE | 128 | 0.00 | 0.03 | 0.185 0.017 | 564 16 | 100 20 |
| OV518-West | 9/5/26 | 80.7 3.4 | 1426 | 43.2 6.1 | 0627 | - | - | - | - | - | - | - | - | - | - | - | 100 20 |
| To Kalon Remote (TKKE) | 9/5/26 | 83.9 3.4 | 1442 | 43.0 4.5 | 0549 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| To Kalon | 9/5/26 | 83.1 3.0 | 1440 | 43.7 4.9 | 0553 | 47.2 3.3 | 96 2 | 26 5 | 2.3 | 16.0 0.3 | 1424 | SSW | 209 | 0.00 | 0.00 | 0.174 0.008 | 534 4 | 90 20 |
| To Kalon Remote (TKN5) | 9/5/26 | 83.4 3.1 | 1510 | 43.2 4.8 | 0642 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| Yountville (Ranch 67) | 9/5/26 | 82.1 3.9 | 1504 | 41.4 6.0 | 0652 | 44.8 5.1 | 92 4 | 21 7 | 2.4 | 14.1 1.9 | 1450 | S | 174 | 0.00 | 0.05 | 0.181 0.006 | 612 8 | 100 20 |
| Stags Leap Dist (Silverado Vineyards) | 9/5/26 | 83.0 3.7 | 1544 | 42.4 6.0 | 0610 | 45.4 4.9 | 95 1 | 21 6 | 1.6 | 12.0 1.8 | 1417 | E | 100 | 0.00 | 0.07 | 0.168 0.005 | 555 5 | 80 20 |
| Borreo (Soda Canyon) | 9/5/26 | 80.1 4.0 | 1558 | 45.7 3.2 | 0654 | 46.4 4.3 | 98 1 | 23 11 | 1.9 | 15.4 6.1 | 1635 | SSE | 160 | 0.00 | 0.31 | 0.176 0.012 | 585 13 | 50 10 |
| Wappo Hill Floor | 9/5/26 | 82.5 2.6 | 1532 | 41.8 6.2 | 0622 | 46.7 4.8 | 100 0 | 23 7 | 2.2 | 12.5 3.2 | 1426 | SSE | 165 | 0.00 | 0.10 | 0.176 0.013 | 535 9 | 100 0 |
| Stags Leap Dist (Chimney Rock) | 9/5/26 | 82.5 2.8 | 1516 | 41.7 6.1 | 0659 | 49.0 5.3 | 99 0 | 28 7 | 2.0 | 13.3 2.9 | 1536 | SSW | 208 | 0.00 | 0.10 | 0.161 0.010 | 506 1 | 100 0 |
| Yountville-South (Ranch 87) | 9/5/26 | 83.3 4.4 | 1500 | 42.8 6.0 | 0634 | 47.2 5.4 | 100 0 | 23 8 | 1.5 | 10.8 3.2 | 1515 | SSW | 206 | 0.00 | 0.09 | 0.154 0.010 | 473 8 | 90 10 |
| Yountville-SE (Ranch 85) | 9/5/26 | 83.0 4.1 | 1614 | 43.2 6.6 | 0645 | 47.7 5.3 | 97 3 | 23 9 | 1.7 | 11.4 6.3 | 1809 | NW | 307 | 0.00 | 0.08 | - | 0 0 | 100 20 |
| Oak Knoll-East (Ranch 53) | 9/5/26 | 83.0 3.2 | 1549 | 44.3 5.5 | 0650 | 47.2 4.5 | 94 2 | 22 5 | 1.5 | 12.9 8.0 | 1703 | SSW | 210 | 0.00 | 0.15 | 0.180 0.010 | 585 18 | 100 0 |
| Napa-NW (Ranch 54) | 9/5/26 | 83.3 3.9 | 1521 | 46.6 4.4 | 0643 | 47.8 4.2 | 100 0 | 22 6 | 1.1 | 12.2 0.8 | 1626 | SW | 216 | 0.00 | 0.18 | - | 0 0 | 100 0 |
| Napa-North (Ranch 29) | 9/5/26 | 81.8 4.3 | 1517 | 44.7 5.7 | 0609 | 49.6 3.9 | 100 0 | 31 5 | 1.7 | 12.2 2.2 | 1533 | S | 180 | 0.00 | 0.10 | 0.122 0.012 | 354 17 | 100 0 |
| Max | 85.8 | - | 50.2 | - | 49.6 | 100 | 31 | 2.7 | 16.0 | - | - | 0.00 | 0.31 | 0.185 | 612 | - | |
| Avg | - | - | - | - | 46.7 | - | - | 1.8 | - | - | - | - | - | - | - | - | |
| Min | 79.5 | - | 40.3 | - | 43.7 | 89 | 21 | 1.1 | 10.8 | - | - | 0.00 | 0.00 | 0.031 | 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 | 9/5/26 | 74.7 3.4 | 1454 | 53.7 4.0 | 0558 | 45.7 3.9 | 85 15 | 31 4 | 1.7 | 14.9 7.0 | 1345 | S | 169 | 0.00 | 0.45 | 0.159 0.034 | 615 94 | 40 10 |
| Mount George (Napa East) | 9/5/26 | 79.4 4.4 | 1620 | 43.1 4.8 | 0633 | 47.5 4.1 | 98 1 | 29 10 | 1.4 | 12.4 1.7 | 1449 | SSE | 154 | 0.00 | 0.16 | 0.171 0.013 | 568 23 | 40 20 |
| Napa-East (Palmaz 300') | 9/5/26 | 84.2 4.2 | 1508 | 46.4 4.8 | 0701 | 48.9 3.9 | 100 0 | 26 9 | 1.9 | 12.1 2.6 | 1608 | S | 186 | 0.00 | 0.16 | 0.163 0.012 | 500 19 | 100 0 |
| 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') | 9/5/26 | 76.8 5.1 | 1356 | 44.9 5.5 | 0453 | 48.2 4.0 | 100 0 | 35 11 | 2.1 | 14.2 0.6 | 1639 | SW | 227 | 0.00 | 0.33 | 0.162 0.017 | 550 18 | 50 20 |
| Wooden Valley | 9/5/26 | 79.4 4.2 | 1529 | 42.8 1.6 | 0511 | 44.8 3.8 | 97 0 | 26 8 | 2.1 | 14.3 2.5 | 1604 | SSW | 204 | 0.00 | 0.04 | 0.174 0.006 | 552 9 | 30 20 |
| Napa-West Upper (Truchard) | 9/5/26 | 84.0 5.1 | 1508 | 49.6 1.4 | 0637 | 19.9 10.3 | 100 0 | 0 0 | 2.7 | 17.5 0.1 | 1507 | SSW | 202 | 0.00 | 0.10 | 0.190 0.017 | 564 28 | 100 0 |
| Napa-West Lower (Truchard) | 9/5/26 | 84.0 4.7 | 1551 | 41.3 4.1 | 0605 | 46.4 3.5 | 97 1 | 26 6 | - | - | - | - | - | - | - | - | 100 0 |
| Napa-South (Toyon Farms) | 9/5/26 | 82.1 5.0 | 1552 | 49.3 3.3 | 0638 | 52.4 2.3 | 100 0 | 35 7 | 2.8 | 14.8 3.7 | 1808 | WSW | 251 | 0.00 | 0.07 | 0.102 0.010 | 260 0 | 100 20 |
| Toyon Remote 1 | 9/5/26 | 84.2 4.7 | 1540 | 44.6 3.5 | 0442 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 9/5/26 | 81.7 5.1 | 1606 | 43.2 3.8 | 0604 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 9/5/26 | 84.5 4.3 | 1547 | 43.2 4.5 | 0626 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 9/5/26 | 82.1 4.2 | 1514 | 45.5 3.2 | 0628 | 48.9 2.5 | 96 0 | 28 4 | 2.4 | 14.6 1.0 | 1659 | W | 270 | 0.00 | 0.08 | 0.174 0.019 | 551 40 | 100 0 |
| Carneros (Saintsbury) | 9/5/26 | 80.8 4.5 | 1531 | 42.8 2.2 | 0645 | 48.7 1.1 | 100 0 | 28 6 | 4.0 | 18.9 2.5 | 1741 | SW | 236 | 0.00 | 0.08 | - | - | 60 20 |
| Suscol Lower (Ranch 35) | 9/5/26 | 80.9 4.6 | 1626 | 46.3 5.1 | 0638 | 49.8 3.2 | 100 0 | 28 11 | 3.9 | 17.3 1.8 | 1734 | W | 260 | 0.00 | 0.15 | 0.178 0.016 | 530 19 | 80 20 |
| Suscol Mtn (Ranch 93) | 9/5/26 | 81.0 5.4 | 1514 | 53.1 1.8 | 0556 | 50.4 2.1 | 96 4 | 28 14 | 4.6 | 22.7 1.4 | 1641 | WNW | 300 | 0.00 | 0.33 | - | - | 50 20 |
| Suscol Upper (Ranch 92) | 9/5/26 | 78.5 4.8 | 1443 | 52.4 0.0 | 0654 | 33.4 10.0 | 100 0 | 0 0 | 3.4 | 18.8 0.6 | 1650 | WSW | 256 | 0.00 | 0.15 | - | - | 20 20 |
| Stanly (Ranch 45) | 9/5/26 | 80.5 5.4 | 1618 | 44.1 5.9 | 0618 | 49.2 2.4 | 96 1 | 29 11 | 4.2 | 17.2 1.0 | 1820 | W | 265 | 0.00 | 0.15 | 0.170 0.016 | 499 14 | 100 0 |
| Carneros Upper (Ranch 81) | 9/5/26 | 81.1 4.4 | 1436 | 52.3 1.1 | 0534 | 50.6 38.8 | - | - | 6.2 | 26.5 2.5 | 1921 | W | 266 | - | - | - | - | 40 20 |
| Carneros (Mitsuko) | 9/5/26 | 82.0 4.9 | 1526 | 42.3 4.9 | 0406 | - | - | - | - | - | - | - | - | - | - | - | 90 20 |
| Carneros Lower (Ranch 81) | 9/5/26 | 85.6 5.5 | 1522 | 45.3 7.1 | 0628 | 45.0 38.3 | 100 0 | 0 0 | 1.4 | 12.6 0.7 | 1606 | W | 268 | 0.00 | 0.01 | 0.025 0.004 | 1 1 | 70 20 |
| Carneros (Milton Rd) | 9/5/26 | 80.8 4.8 | 1601 | 45.3 5.5 | 0459 | 49.3 3.9 | 94 0 | 28 10 | - | - | - | - | 0.00 | 0.00 | - | - | 100 0 |
| Max | 85.6 | - | 53.7 | - | 52.4 | 100 | 35 | 6.2 | 26.5 | - | - | 0.00 | 0.45 | 0.190 | 615 | - | |
| Avg | - | - | - | - | 45.8 | - | - | 3.0 | - | - | - | - | - | - | - | - | |
| Min | 74.7 | - | 41.3 | - | 19.9 | 85 | 0 | 1.4 | 12.1 | - | - | 0.00 | 0.00 | 0.025 | 1 | - |