| 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 | 8/27/26 | 93.1 1.0 | 1355 | 57.0 5.3 | 0635 | - | - | - | - | - | - | - | 0.00 | 0.00 | - | - | 10 10 |
| Pope Valley (Weeks Lake) | 8/27/26 | 97.5 0.6 | 1555 | 48.7 8.6 | 0640 | 46.6 5.0 | 90 10 | 12 5 | 1.9 0.6 | 15.8 5.3 | 1411 | WSW | 237 | 0.00 | 0.00 | 0.196 0.001 | 505 59 | 0 0 |
| Dollarhide Base | 8/27/26 | 101.8 1.4 | 1359 | 57.0 6.6 | 0642 | 50.8 4.0 | 81 10 | 16 2 | 3.3 0.8 | 18.1 4.0 | 1744 | SW | 226 | 0.00 | 0.00 | 0.233 0.005 | 539 80 | 0 0 |
| Dollarhide 1AS Remote | 8/27/26 | 102.9 0.8 | 1400 | 49.9 8.9 | 0609 | 48.9 5.0 | 86 3 | 16 3 | 2.6 0.9 | 16.5 2.3 | 1538 | SSW | 199 | - | - | - | - | 0 0 |
| Dollarhide 16A Remote | 8/27/26 | 101.5 1.2 | 1609 | 54.6 6.7 | 0656 | 51.1 4.3 | 85 6 | 15 3 | - | - | - | - | - | - | - | - | 0 0 |
| Dollarhide 18A Remote | 8/27/26 | 100.9 1.3 | 1410 | 48.0 8.9 | 0600 | 49.0 4.8 | 88 4 | 15 2 | - | - | - | - | - | - | - | - | 0 0 |
| Hardin Rd (Eakle) | 8/27/26 | 98.8 0.1 | 1343 | 52.6 8.1 | 0648 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Angwin | 8/27/26 | 91.0 0.7 | 1451 | 67.0 1.0 | 0634 | 40.3 7.6 | 39 4 | 14 5 | 3.1 0.4 | 13.7 0.9 | 1849 | SE | 124 | 0.00 | 0.00 | 0.077 0.005 | 0 0 | 100 0 |
| Lower Angwin (Pioneer) | 8/27/26 | 91.5 0.6 | 1546 | 49.5 8.9 | 0544 | - | - | - | 1.7 0.2 | 12.8 1.5 | 1328 | WSW | 245 | - | - | - | - | 80 10 |
| Las Posadas (Cal Fire) | 8/27/26 | 94.4 0.1 | 1400 | 58.8 8.2 | 0407 | 47.5 2.5 | 64 19 | 19 4 | 6.6 0.2 | 23.4 2.3 | 1926 | SSW | 208 | 0.00 | 0.00 | 0.250 0.006 | 475 75 | - |
| Deer Park | 8/27/26 | 99.1 0.6 | 1528 | 59.2 5.9 | 0649 | 50.8 4.2 | 79 2 | 15 6 | 3.4 0.5 | 17.7 4.8 | 1720 | SW | 232 | 0.00 | 0.00 | 0.190 0.007 | 398 16 | 0 0 |
| Lower Chiles Valley (Brown) | 8/27/26 | 95.9 1.1 | 1429 | 49.5 7.7 | 0600 | 47.1 4.6 | 90 5 | 17 9 | 2.6 0.2 | 13.5 0.6 | 1920 | WNW | 302 | 0.00 | 0.00 | 0.209 0.013 | 536 72 | 0 0 |
| Moss Creek Vineyard/Reservior | 8/27/26 | 101.0 0.2 | 1338 | 56.0 7.2 | 0703 | 48.2 5.6 | 80 6 | 10 5 | - | - | - | - | 0.00 | 0.00 | - | - | 0 0 |
| Max | 102.9 | - | 67.0 | - | 51.1 | 90 | 19 | 6.6 | 23.4 | - | - | 0.00 | 0.00 | 0.250 | 539 | - | |
| Avg | - | - | - | - | 48.0 | - | - | 3.1 | - | - | - | - | - | - | - | - | |
| Min | 91.0 | - | 48.0 | - | 40.3 | 39 | 10 | 1.7 | 12.8 | - | - | 0.00 | 0.00 | 0.077 | 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 | 8/27/26 | 98.7 2.1 | 1601 | 54.2 8.2 | 0622 | 53.4 4.8 | 89 5 | 23 10 | - | - | - | - | 0.00 | 0.00 | - | - | 0 0 |
| Diamond Mtn (Schramsberg) | 8/27/26 | 97.1 1.6 | 1351 | 61.0 6.6 | 0651 | 48.9 3.8 | 72 6 | 15 8 | - | - | - | - | 0.00 | 0.00 | - | - | 0 0 |
| Diamond Mtn (McEachran) | 8/27/26 | 95.8 1.3 | 1338 | 59.2 6.9 | 0651 | 49.2 5.0 | 78 4 | 17 8 | - | - | - | - | - | - | - | - | 0 0 |
| St. Helena-North | 8/27/26 | 100.3 0.6 | 1318 | 55.7 7.6 | 0635 | 48.4 5.6 | 79 6 | 7 1 | 2.0 | 16.7 4.8 | 1323 | SSE | 161 | 0.00 | 0.00 | 0.185 0.003 | 482 45 | 0 0 |
| St. Helena (NVV Office) | 8/27/26 | 100.8 0.9 | 1537 | 55.8 7.0 | 0647 | - | - | - | 1.3 | 10.4 2.1 | 1740 | WNW | 295 | 0.00 | 0.00 | - | - | 0 0 |
| Tiara Fria (East St. Helena) | 8/27/26 | 98.1 1.8 | 1552 | 53.4 7.2 | 0649 | 53.1 5.1 | 88 0 | 16 3 | 2.1 | 13.2 1.8 | 1800 | E | 101 | 0.00 | 0.00 | - | - | 0 0 |
| Prisoner Winery | 8/27/26 | 100.6 1.3 | 1543 | 52.7 6.9 | 0550 | 53.4 4.3 | 90 4 | 15 0 | 1.4 | 10.8 3.6 | 1655 | SSW | 201 | 0.00 | 0.00 | 0.038 0.032 | 0 142 | 0 0 |
| Rutherford Hill Estate | 8/27/26 | 96.7 1.4 | 1417 | 58.3 6.3 | 0640 | 54.7 3.9 | 89 4 | 24 9 | 1.7 | 17.3 4.8 | 1418 | SSW | 206 | 0.00 | 0.00 | 0.170 0.006 | 451 59 | 0 0 |
| Rutherford-North (Mee Ln) | 8/27/26 | 96.6 0.9 | 1715 | 51.5 8.1 | 0621 | 53.4 4.6 | 90 0 | 16 3 | 2.9 | 19.1 6.1 | 1856 | SE | 124 | 0.00 | 0.00 | 0.195 0.002 | 462 43 | 0 0 |
| Rutherford (STS) | 8/27/26 | 98.1 0.0 | 1541 | 50.8 8.4 | 0639 | 56.6 4.6 | 92 1 | 21 1 | 2.0 | 13.9 0.8 | 1412 | SSE | 149 | 0.00 | 0.00 | 0.199 0.010 | 537 69 | 0 0 |
| Oakville-NE (Ranch 88) | 8/27/26 | 95.9 0.2 | 1518 | 50.3 7.9 | 0626 | 51.9 4.8 | 81 4 | 24 6 | 2.3 | 18.6 6.9 | 1810 | SSE | 163 | 0.00 | 0.00 | 0.187 0.001 | 466 51 | 80 10 |
| OV561-East | 8/27/26 | 96.6 1.4 | 1537 | 52.8 7.4 | 0700 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Oakville | 8/27/26 | 92.3 0.3 | 1519 | 51.6 7.9 | 0651 | 54.0 4.8 | 88 3 | 28 8 | 3.3 | 19.8 6.0 | 1427 | ESE | 114 | 0.00 | 0.00 | 0.206 0.009 | 518 68 | 70 10 |
| OV518-West | 8/27/26 | 92.4 0.4 | 1504 | 52.5 8.0 | 0643 | - | - | - | - | - | - | - | - | - | - | - | 70 10 |
| To Kalon Remote (TKKE) | 8/27/26 | 96.7 0.5 | 1602 | 52.3 8.0 | 0628 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| To Kalon | 8/27/26 | 95.6 1.5 | 1601 | 52.7 7.0 | 0648 | 55.3 4.7 | 92 1 | 21 1 | 3.0 | 16.3 4.2 | 1849 | SE | 125 | 0.00 | 0.00 | 0.199 0.009 | 503 52 | 60 10 |
| To Kalon Remote (TKN5) | 8/27/26 | 97.0 0.2 | 1506 | 52.6 7.3 | 0640 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Yountville (Ranch 67) | 8/27/26 | 90.6 0.9 | 1511 | 51.0 7.3 | 0634 | 53.0 4.1 | 88 3 | 30 9 | 3.1 | 17.4 1.4 | 1724 | E | 91 | 0.00 | 0.00 | 0.205 0.008 | 567 74 | 70 10 |
| Stags Leap Dist (Silverado Vineyards) | 8/27/26 | 91.6 1.3 | 1509 | 51.9 7.6 | 0610 | 53.4 4.4 | 92 0 | 29 10 | 2.5 | 16.7 2.9 | 1353 | SE | 139 | 0.00 | 0.00 | 0.198 0.016 | 531 62 | 80 10 |
| Borreo (Soda Canyon) | 8/27/26 | 89.1 2.0 | 1459 | 52.6 7.1 | 0634 | 52.6 4.6 | 92 4 | 30 7 | 1.8 | 13.4 2.7 | 1730 | SSW | 194 | 0.00 | 0.00 | 0.168 0.033 | 485 130 | 80 10 |
| Wappo Hill Floor | 8/27/26 | 92.3 0.2 | 1432 | 51.2 7.8 | 0639 | 54.5 4.4 | 91 9 | 31 12 | 2.5 | 15.4 3.0 | 1728 | ESE | 118 | 0.00 | 0.00 | 0.184 0.019 | 484 92 | 70 10 |
| Stags Leap Dist (Chimney Rock) | 8/27/26 | 90.2 0.8 | 1452 | 51.0 7.5 | 0536 | 56.8 4.1 | 98 0 | 38 9 | 2.4 | 14.5 2.9 | 1703 | E | 83 | 0.00 | 0.00 | 0.169 0.014 | 458 76 | 70 10 |
| Yountville-South (Ranch 87) | 8/27/26 | 92.7 0.8 | 1432 | 52.1 7.2 | 0515 | 55.3 4.0 | 94 1 | 26 7 | 1.7 | 13.2 2.8 | 1814 | S | 178 | 0.00 | 0.00 | 0.166 0.016 | 452 89 | 0 0 |
| Yountville-SE (Ranch 85) | 8/27/26 | 90.1 0.3 | 1456 | 51.8 6.8 | 0644 | 55.5 3.6 | 92 3 | 35 10 | 2.5 | 18.4 5.7 | 1730 | SSE | 164 | 0.00 | 0.00 | - | 0 0 | 70 10 |
| Oak Knoll-East (Ranch 53) | 8/27/26 | 90.1 2.8 | 1452 | 52.8 7.1 | 0637 | 54.0 3.9 | 88 0 | 25 9 | 2.0 | 13.6 0.9 | 1725 | SE | 130 | 0.00 | 0.00 | 0.183 0.020 | 514 97 | 70 10 |
| Napa-NW (Ranch 54) | 8/27/26 | 94.1 1.1 | 1551 | 53.1 6.1 | 0610 | 53.4 3.2 | 86 0 | 19 4 | 0.8 | 13.3 6.4 | 1651 | SSW | 202 | 0.00 | 0.00 | - | 0 0 | 70 10 |
| Napa-North (Ranch 29) | 8/27/26 | 88.7 1.5 | 1455 | 53.4 6.5 | 0700 | 55.7 3.1 | 100 0 | 36 7 | 1.5 | 13.0 1.4 | 1404 | S | 178 | 0.00 | 0.00 | 0.109 0.019 | 270 80 | 80 10 |
| Max | 100.8 | - | 61.0 | - | 56.8 | 100 | 38 | 3.3 | 19.8 | - | - | 0.00 | 0.00 | 0.206 | 567 | - | |
| Avg | - | - | - | - | 53.5 | - | - | 2.1 | - | - | - | - | - | - | - | - | |
| Min | 88.7 | - | 50.3 | - | 48.4 | 72 | 7 | 0.8 | 10.4 | - | - | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mt. Veeder | 8/27/26 | 92.9 0.9 | 1343 | 64.8 3.7 | 0418 | 44.6 2.8 | 56 2 | 12 3 | 1.8 | 12.1 3.2 | 1417 | SSE | 166 | 0.00 | 0.00 | 0.230 0.011 | 699 6 | 100 0 |
| Mount George (Napa East) | 8/27/26 | 88.0 0.9 | 1455 | 51.8 3.7 | 0637 | 52.8 1.1 | 91 5 | 31 5 | 1.2 | 10.4 2.4 | 1321 | SW | 227 | 0.00 | 0.00 | 0.165 0.023 | 499 93 | 70 10 |
| Napa-East (Palmaz 300') | 8/27/26 | 94.6 0.8 | 1413 | 54.7 6.7 | 0700 | 54.3 3.5 | 100 0 | 26 5 | 0.6 | 11.0 0.6 | 1327 | W | 268 | 0.00 | 0.00 | 0.134 0.028 | 389 83 | 40 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') | 8/27/26 | 87.4 1.1 | 1334 | 54.3 2.8 | 0637 | 50.5 2.0 | 88 1 | 24 0 | 2.3 | 14.3 2.8 | 1738 | SW | 225 | 0.00 | 0.03 | 0.170 0.026 | 481 103 | 80 10 |
| Wooden Valley | 8/27/26 | 91.6 1.5 | 1405 | 57.9 10.8 | 0610 | 48.5 3.5 | 77 11 | 18 3 | 3.3 | 15.3 0.9 | 1346 | SSW | 193 | 0.00 | 0.00 | 0.195 0.027 | 471 126 | 30 10 |
| Napa-West Upper (Truchard) | 8/27/26 | 90.3 2.9 | 1427 | 57.7 6.0 | 0542 | 56.4 7.7 | 100 0 | 24 24 | 2.9 | 20.0 5.5 | 1631 | SW | 216 | 0.00 | 0.00 | 0.197 0.019 | 517 84 | 70 10 |
| Napa-West Lower (Truchard) | 8/27/26 | 90.1 2.8 | 1454 | 50.2 7.6 | 0614 | 53.7 4.1 | 97 1 | 26 9 | - | - | - | - | - | - | - | - | 70 10 |
| Napa-South (Toyon Farms) | 8/27/26 | 86.8 4.5 | 1419 | 57.6 6.7 | 0634 | 58.9 2.9 | 99 0 | 43 18 | 3.5 | 14.8 0.8 | 1409 | SSE | 166 | 0.00 | 0.00 | 0.103 0.014 | 226 51 | 70 10 |
| Toyon Remote 1 | 8/27/26 | 88.1 4.6 | 1544 | 54.1 8.5 | 0457 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 8/27/26 | 86.2 4.7 | 1551 | 52.9 8.3 | 0453 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 8/27/26 | 89.2 4.9 | 1547 | 53.2 8.1 | 0509 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 8/27/26 | 90.5 1.3 | 1447 | 54.6 8.2 | 0513 | 54.6 3.9 | 92 2 | 24 6 | 2.4 | 16.2 2.5 | 1347 | SSE | 159 | 0.00 | 0.00 | 0.178 0.015 | 505 84 | 70 10 |
| Carneros (Saintsbury) | 8/27/26 | 85.6 4.7 | 1514 | 53.1 7.6 | 0647 | 55.0 3.1 | 98 2 | 38 21 | 3.8 | 15.3 1.3 | 1703 | S | 184 | 0.00 | 0.00 | - | - | 100 10 |
| Suscol Lower (Ranch 35) | 8/27/26 | 88.9 1.1 | 1446 | 56.2 7.0 | 0653 | 55.6 2.6 | 92 8 | 30 2 | 4.2 | 14.8 1.5 | 1558 | SW | 214 | 0.00 | 0.00 | 0.178 0.016 | 472 84 | 80 10 |
| Suscol Mtn (Ranch 93) | 8/27/26 | 92.2 1.2 | 1443 | 59.3 6.3 | 0549 | 54.6 1.4 | 96 1 | 30 5 | 3.2 | 15.0 0.6 | 1533 | WNW | 291 | 0.00 | 0.00 | - | - | 80 10 |
| Suscol Upper (Ranch 92) | 8/27/26 | 88.8 0.1 | 1443 | 58.9 6.3 | 0550 | 41.7 3.8 | 100 0 | 0 0 | 1.9 | 14.2 3.2 | 1742 | SSW | 203 | 0.00 | 0.00 | - | - | 80 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) | 8/27/26 | 89.2 0.2 | 1431 | 59.3 5.6 | 0523 | 54.4 2.7 | - | - | 5.9 | 19.4 1.1 | 1559 | SW | 231 | - | - | - | - | 70 10 |
| Carneros (Mitsuko) | 8/27/26 | 87.4 3.2 | 1433 | 50.4 7.6 | 0539 | - | - | - | - | - | - | - | - | - | - | - | 100 20 |
| Carneros Lower (Ranch 81) | 8/27/26 | 89.2 3.6 | 1433 | 54.8 8.0 | 0453 | 54.5 3.8 | 100 0 | 0 0 | 2.0 | 14.0 1.8 | 1343 | SSE | 161 | 0.00 | 0.00 | 0.036 0.007 | 0 1 | 70 10 |
| Carneros (Milton Rd) | 8/27/26 | 85.5 3.4 | 1355 | 53.1 8.5 | 0328 | 55.4 3.4 | 92 0 | 38 18 | - | - | - | - | 0.00 | 0.00 | - | - | 100 10 |
| Max | 94.6 | - | 64.8 | - | 58.9 | 100 | 43 | 5.9 | 20.0 | - | - | 0.00 | 0.03 | 0.230 | 699 | - | |
| Avg | - | - | - | - | 52.8 | - | - | 2.8 | - | - | - | - | - | - | - | - | |
| Min | 85.5 | - | 50.2 | - | 41.7 | 56 | 0 | 0.6 | 10.4 | - | - | 0.00 | 0.00 | 0.036 | 0 | - |