| 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 | 5/19/26 | 82.2 4.5 | 1635 | 47.4 0.8 | 0628 | - | - | - | - | - | - | - | 0.00 | 50.09 | - | - | 100 0 |
| Pope Valley (Weeks Lake) | 5/19/26 | 87.3 5.0 | 1704 | 37.0 7.6 | 0434 | 35.3 11.9 | 96 24 | 9 4 | 2.1 2.9 | 15.3 6.8 | 1159 | ENE | 58 | 0.00 | 26.24 | 0.225 0.035 | 640 13 | 90 10 |
| Dollarhide Base | 5/19/26 | 89.0 6.4 | 1740 | 44.4 9.3 | 0501 | 38.5 10.8 | 91 38 | 12 6 | 3.4 5.4 | 23.1 8.7 | 1210 | NE | 39 | 0.00 | 23.14 | 0.268 0.062 | 734 12 | 90 10 |
| Dollarhide 1AS Remote | 5/19/26 | 90.5 6.9 | 1651 | 36.6 6.2 | 0535 | 39.3 10.1 | 94 6 | 11 5 | 2.0 4.9 | 22.2 3.7 | 1211 | E | 82 | - | - | - | - | 90 10 |
| Dollarhide 16A Remote | 5/19/26 | 90.1 6.7 | 1632 | 41.9 8.0 | 0607 | 39.5 10.2 | 95 30 | 13 6 | - | - | - | - | - | - | - | - | 90 10 |
| Dollarhide 18A Remote | 5/19/26 | 90.9 6.1 | 1817 | 34.3 6.1 | 0546 | 37.7 8.0 | 96 10 | 12 5 | - | - | - | - | - | - | - | - | 90 10 |
| Hardin Rd (Eakle) | 5/19/26 | 89.5 6.0 | 1500 | 39.8 7.5 | 0558 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| Angwin | 5/19/26 | 81.0 6.1 | 1616 | 59.7 6.6 | 0544 | 24.4 7.1 | 27 3 | 9 6 | 5.3 4.8 | 18.0 11.6 | 1230 | NNW | 344 | 0.00 | 45.12 | 0.115 0.050 | 0 0 | 100 0 |
| Lower Angwin (Pioneer) | 5/19/26 | 82.5 4.7 | 1707 | 48.0 0.3 | 0102 | - | - | - | 2.8 2.1 | 13.3 11.6 | 1257 | NNW | 342 | - | - | - | - | 100 0 |
| Las Posadas (Cal Fire) | 5/19/26 | 85.2 5.7 | 1631 | 55.7 2.5 | 0508 | 28.9 8.4 | 45 15 | 10 7 | 7.3 8.2 | 25.4 14.5 | 1236 | NE | 38 | 0.00 | 34.50 | 0.302 0.047 | 630 15 | - |
| Deer Park | 5/19/26 | 88.3 5.1 | 1602 | 60.0 1.4 | 0200 | 28.0 6.6 | 32 4 | 8 5 | 5.5 1.0 | 19.6 11.9 | 0803 | NNE | 12 | 0.00 | 28.72 | 0.262 0.002 | 492 15 | 100 0 |
| Lower Chiles Valley (Brown) | 5/19/26 | 86.6 6.0 | 1722 | 37.2 3.5 | 0506 | 34.0 7.3 | 88 6 | 9 2 | 2.6 4.3 | 16.4 16.6 | 1509 | E | 99 | 0.00 | 25.89 | 0.246 0.037 | 703 16 | 100 0 |
| Moss Creek Vineyard/Reservior | 5/19/26 | 87.1 5.2 | 1653 | 41.8 6.8 | 0517 | 33.8 7.0 | 91 17 | 7 1 | - | - | - | - | 0.00 | 27.05 | - | - | 60 20 |
| Max | 90.9 | - | 60.0 | - | 39.5 | 96 | 13 | 7.3 | 25.4 | - | - | 0.00 | 50.09 | 0.302 | 734 | - | |
| Avg | - | - | - | - | 33.9 | - | - | 3.9 | - | - | - | - | - | - | - | - | |
| Min | 81.0 | - | 34.3 | - | 24.4 | 27 | 7 | 2.0 | 13.3 | - | - | 0.00 | 23.14 | 0.115 | 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 | 5/18/26 | 88.5 11.5 | 1545 | 49.6 5.1 | 0059 | 28.8 5.5 | 65 21 | 6 9 | - | - | - | - | 0.00 | 32.79 | - | - | 80 10 |
| Diamond Mtn (Schramsberg) | 5/19/26 | 87.5 4.2 | 1613 | 64.2 4.3 | 0105 | 26.9 4.8 | 29 3 | 9 5 | - | - | - | - | 0.00 | 31.20 | - | - | 100 0 |
| Diamond Mtn (McEachran) | 5/19/26 | 89.4 4.5 | 1638 | 57.9 1.8 | 0317 | 28.8 7.1 | 39 4 | 8 4 | - | - | - | - | - | - | - | - | 90 10 |
| St. Helena-North | 5/19/26 | 92.6 4.6 | 1529 | 47.4 6.1 | 0607 | 29.3 9.9 | 64 19 | 5 4 | 1.7 | 11.6 7.0 | 1659 | S | 191 | 0.00 | 31.03 | 0.205 0.004 | 588 13 | 90 10 |
| St. Helena (NVV Office) | 5/19/26 | 93.0 5.7 | 1614 | 47.9 7.3 | 0510 | - | - | - | 1.7 | 13.4 10.1 | 1522 | ENE | 66 | 0.00 | 28.47 | - | - | 90 10 |
| Tiara Fria (East St. Helena) | 5/19/26 | 90.4 4.2 | 1702 | 45.4 5.7 | 0507 | 33.9 11.7 | 76 15 | 8 5 | 2.5 | 17.4 7.7 | 1235 | ENE | 59 | 0.00 | 26.44 | - | - | 90 10 |
| Rutherford Hill Estate | 5/19/26 | 91.8 4.7 | 1642 | 58.2 2.3 | 0245 | 31.0 8.3 | 38 9 | 9 5 | 2.1 | 15.1 10.1 | 1741 | W | 274 | 0.00 | 25.00 | 0.216 0.007 | 606 16 | 90 10 |
| Rutherford-North (Mee Ln) | 5/19/26 | 90.8 4.4 | 1706 | 45.1 1.8 | 0545 | 38.1 9.6 | 84 7 | 9 3 | 2.5 | 16.2 9.2 | 1318 | NW | 321 | 0.00 | 24.52 | 0.228 0.015 | 620 14 | 90 10 |
| Rutherford (STS) | 5/19/26 | 90.5 5.4 | 1516 | 46.7 2.4 | 0550 | 39.6 7.9 | 78 5 | 13 5 | 3.2 | 15.5 10.4 | 1744 | W | 277 | 0.00 | 25.82 | 0.262 0.031 | 722 15 | 90 10 |
| Oakville-NE (Ranch 88) | 5/19/26 | 91.5 5.5 | 1616 | 43.0 3.3 | 0524 | 33.6 11.8 | 79 8 | 6 4 | 2.3 | 16.7 7.9 | 1253 | NNE | 28 | 0.00 | 24.92 | 0.232 0.051 | 622 25 | 90 10 |
| OV561-East | 5/19/26 | 93.3 3.5 | 1647 | 46.8 3.1 | 0433 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| Oakville | 5/19/26 | 90.1 4.8 | 1625 | 42.6 4.1 | 0521 | 35.5 10.7 | 86 6 | 7 4 | 3.4 | 15.8 11.0 | 1401 | N | 349 | 0.00 | 25.51 | 0.266 0.043 | 706 21 | 90 10 |
| OV518-West | 5/19/26 | 89.0 3.7 | 1653 | 46.5 3.5 | 0504 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| To Kalon Remote (TKKE) | 5/19/26 | 94.0 5.9 | 1641 | 44.8 3.5 | 0521 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| To Kalon | 5/19/26 | 90.9 4.2 | 1643 | 45.2 4.7 | 0456 | 34.6 9.9 | 75 15 | 9 5 | 2.9 | 18.2 4.7 | 1353 | ENE | 61 | 0.00 | 27.70 | 0.250 0.047 | 646 17 | 90 10 |
| To Kalon Remote (TKN5) | 5/19/26 | 91.4 5.3 | 1547 | 43.3 5.9 | 0502 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| Yountville (Ranch 67) | 5/19/26 | 89.3 5.1 | 1638 | 46.2 4.5 | 0615 | 32.1 9.5 | 77 16 | 7 3 | 3.4 | 17.5 16.4 | 1407 | NNW | 348 | 0.00 | 23.62 | 0.268 0.053 | 728 12 | 90 10 |
| Stags Leap Dist (Silverado Vineyards) | 5/19/26 | 89.4 5.6 | 1622 | 47.2 3.3 | 0607 | 33.2 10.1 | 80 19 | 7 3 | 1.8 | 17.3 12.2 | 1218 | NNW | 336 | 0.00 | 27.62 | 0.239 0.060 | 696 15 | 100 0 |
| Borreo (Soda Canyon) | 5/19/26 | 88.1 4.6 | 1643 | 52.2 8.8 | 0059 | 27.6 6.3 | 61 34 | 7 1 | 3.5 | 14.7 12.7 | 1146 | NW | 309 | 0.00 | 27.52 | 0.275 0.022 | 727 15 | 100 0 |
| Wappo Hill Floor | 5/19/26 | 92.5 6.6 | 1703 | 50.7 5.8 | 0031 | 32.7 9.8 | 78 34 | 7 3 | 4.1 | 18.0 14.8 | 1223 | NNE | 25 | 0.00 | 26.75 | 0.287 0.068 | 708 16 | 90 10 |
| Stags Leap Dist (Chimney Rock) | 5/19/26 | 89.3 4.3 | 1645 | 47.2 4.3 | 0607 | 39.7 7.5 | 86 12 | 14 3 | 3.7 | 18.5 13.9 | 1214 | NW | 325 | 0.00 | 26.14 | 0.250 0.051 | 632 13 | 90 10 |
| Yountville-South (Ranch 87) | 5/19/26 | 91.2 3.8 | 1658 | 51.6 5.9 | 0059 | 34.8 10.5 | 80 36 | 8 4 | 2.4 | 13.0 8.2 | 1243 | NE | 38 | 0.00 | 27.39 | 0.252 0.005 | 718 23 | 80 10 |
| Yountville-SE (Ranch 85) | 5/19/26 | 90.4 5.1 | 1712 | 52.2 1.6 | 0506 | 34.6 9.9 | 78 26 | 8 4 | 3.4 | 16.9 13.0 | 1252 | N | 1 | 0.00 | 25.69 | - | 0 0 | 90 10 |
| Oak Knoll-East (Ranch 53) | 5/19/26 | 91.9 4.9 | 1614 | 45.0 5.2 | 0524 | 34.1 10.1 | 81 14 | 7 2 | 2.4 | 18.3 8.0 | 1300 | NNW | 346 | 0.00 | 24.30 | 0.261 0.053 | 723 16 | 90 10 |
| Napa-NW (Ranch 54) | 5/19/26 | 92.2 5.7 | 1722 | 45.1 7.2 | 0529 | 32.8 10.2 | 76 21 | 7 3 | 2.1 | 15.8 4.8 | 1247 | NNE | 27 | 0.00 | 26.77 | - | 0 0 | 90 10 |
| Napa-North (Ranch 29) | 5/19/26 | 92.0 5.5 | 1710 | 45.3 6.4 | 0444 | 36.1 9.9 | 82 17 | 8 1 | 1.8 | 12.0 8.6 | 1305 | NNW | 337 | 0.00 | 25.18 | 0.168 0.020 | 416 14 | 90 10 |
| Max | 94.0 | - | 64.2 | - | 39.7 | 86 | 14 | 4.1 | 18.5 | - | - | 0.00 | 31.20 | 0.287 | 728 | - | |
| Avg | - | - | - | - | 33.4 | - | - | 2.7 | - | - | - | - | - | - | - | - | |
| Min | 87.5 | - | 42.6 | - | 26.9 | 29 | 5 | 1.7 | 11.6 | - | - | 0.00 | 23.62 | 0.168 | 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 | 5/19/26 | 83.3 5.8 | 1521 | 62.3 4.5 | 0603 | 26.4 7.0 | 29 1 | 10 4 | 2.3 | 12.7 12.5 | 0841 | N | 5 | 0.00 | 34.19 | 0.227 0.034 | 637 39 | 70 20 |
| Mount George (Napa East) | 5/19/26 | 88.7 3.7 | 1723 | 49.0 1.4 | 0525 | 35.0 8.8 | 75 14 | 8 2 | 2.1 | 15.9 14.2 | 1232 | N | 350 | 0.00 | 17.04 | 0.242 0.043 | 698 11 | 90 10 |
| Napa-East (Palmaz 300') | 5/19/26 | 91.6 4.7 | 1649 | 50.5 4.4 | 0436 | 34.0 9.0 | 65 19 | 7 2 | 2.6 | 15.3 18.8 | 1524 | ENE | 68 | 0.00 | 23.29 | 0.213 0.020 | 571 12 | 90 10 |
| Napa-East (Palmaz 1200') | 5/19/26 | 85.4 4.8 | 1637 | 52.5 0.2 | 0646 | 30.5 6.5 | 56 9 | 9 3 | 2.7 | 13.9 15.4 | 1700 | E | 79 | - | - | 0.236 0.016 | 706 16 | 90 20 |
| Napa-East (Palmaz 1400') | 5/19/26 | 83.4 5.6 | 1419 | 52.6 0.4 | 0059 | 30.6 5.8 | 58 16 | 12 2 | 4.0 | 16.7 19.5 | 1015 | N | 6 | 0.00 | 30.80 | 0.255 0.023 | 690 10 | 90 20 |
| Wooden Valley | 5/19/26 | 85.1 3.4 | 1750 | 40.0 5.4 | 0536 | 36.3 8.4 | 91 8 | 9 1 | 2.6 | 17.5 6.8 | 1506 | NW | 313 | 0.00 | 29.11 | 0.241 0.035 | 714 19 | 100 0 |
| Napa-West Upper (Truchard) | 5/19/26 | 91.3 6.3 | 1606 | 54.2 4.9 | 0540 | 31.9 9.8 | 62 29 | 8 3 | 4.0 | 17.4 10.2 | 1212 | NNE | 14 | 0.00 | 24.41 | 0.285 0.019 | 706 14 | 90 10 |
| Napa-West Lower (Truchard) | 5/19/26 | 94.5 4.3 | 1633 | 39.3 4.0 | 0535 | 36.1 8.5 | 94 15 | 8 1 | - | - | - | - | - | - | - | - | 80 10 |
| Napa-South (Toyon Farms) | 5/19/26 | 92.6 4.9 | 1512 | 50.6 5.3 | 0551 | 42.4 8.9 | 79 21 | 13 3 | 2.4 | 18.2 3.5 | 1323 | ENE | 61 | 0.00 | 18.34 | 0.152 0.001 | 355 5 | 80 10 |
| Toyon Remote 1 | 5/19/26 | 91.7 5.2 | 1503 | 37.7 5.0 | 0609 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 5/19/26 | 92.2 4.3 | 1552 | 40.9 4.9 | 0538 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 5/19/26 | 93.1 4.7 | 1609 | 41.8 5.4 | 0601 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 5/19/26 | 90.4 5.1 | 1501 | 43.9 6.2 | 0520 | 34.9 10.2 | 85 22 | 8 2 | 3.1 | 16.5 11.5 | 0833 | N | 353 | 0.00 | 23.58 | 0.264 0.039 | 723 17 | 80 10 |
| Carneros (Saintsbury) | 5/19/26 | 89.2 4.6 | 1611 | 45.9 5.3 | 0550 | 37.2 11.9 | 80 22 | 8 2 | 3.3 | 20.0 6.2 | 1653 | SW | 234 | 0.00 | 8.68 | - | - | 90 10 |
| Suscol Lower (Ranch 35) | 5/19/26 | 90.6 4.6 | 1539 | 41.6 8.6 | 0519 | 36.5 11.9 | - | - | 4.3 | 19.1 6.4 | 1637 | SW | 224 | 0.00 | 22.84 | 0.252 0.049 | 636 16 | 90 10 |
| Suscol Mtn (Ranch 93) | 5/19/26 | 87.7 5.0 | 1432 | 61.7 1.5 | 0042 | 25.8 6.4 | 54 30 | 8 2 | 6.8 | 24.3 11.8 | 1733 | WNW | 302 | 0.00 | 18.60 | - | - | 90 10 |
| Suscol Upper (Ranch 92) | 5/19/26 | 89.8 5.4 | 1439 | 60.1 1.3 | 0101 | 28.1 7.1 | 67 43 | 8 2 | 3.4 | 20.4 11.3 | 1718 | SW | 234 | 0.00 | 22.35 | - | - | 90 10 |
| Stanly (Ranch 45) | 5/19/26 | 92.4 5.0 | 1619 | 42.0 6.4 | 0501 | 39.8 12.2 | 92 15 | 7 1 | 3.8 | 20.9 8.6 | 1658 | W | 263 | 0.00 | 22.49 | 0.289 0.060 | 760 24 | 80 10 |
| Carneros Upper (Ranch 81) | 5/19/26 | 89.3 5.2 | 1540 | 57.1 5.8 | 0634 | 33.0 13.8 | - | - | 5.4 | 25.7 12.4 | 1744 | WSW | 256 | - | - | - | - | 90 10 |
| Carneros (Mitsuko) | 5/19/26 | 91.0 4.9 | 1456 | 38.3 4.9 | 0544 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| Carneros Lower (Ranch 81) | 5/19/26 | 91.1 5.1 | 1544 | 43.0 6.4 | 0531 | 39.1 12.1 | 90 23 | 9 3 | 1.6 | 13.1 15.8 | 1349 | NNE | 30 | 0.00 | 19.42 | 0.211 0.060 | 610 14 | 90 10 |
| Carneros (Milton Rd) | 5/19/26 | 92.0 4.8 | 1425 | 40.2 3.4 | 0540 | 38.7 13.2 | 90 12 | 7 1 | - | - | - | - | 0.00 | 18.07 | - | - | 90 10 |
| Max | 94.5 | - | 62.3 | - | 42.4 | 94 | 13 | 6.8 | 25.7 | - | - | 0.00 | 34.19 | 0.289 | 760 | - | |
| Avg | - | - | - | - | 34.2 | - | - | 3.4 | - | - | - | - | - | - | - | - | |
| Min | 83.3 | - | 37.7 | - | 25.8 | 29 | 7 | 1.6 | 12.7 | - | - | 0.00 | 8.68 | 0.152 | 355 | - |