| 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 | 3/25/26 | 76.4 4.2 | 1552 | 42.6 1.1 | 0037 | - | - | - | - | - | - | - | 0.00 | 42.33 | - | - | 100 0 |
| Pope Valley (Weeks Lake) | 3/25/26 | 82.1 3.2 | 1536 | 35.3 0.4 | 0526 | 43.4 2.1 | 100 0 | 29 13 | 2.1 | 17.3 6.8 | 1557 | WNW | 284 | 0.00 | 21.60 | 0.158 0.004 | 478 11 | 100 0 |
| Whiskey River Winery | 12/13/25 | 52.8 3.6 | 1548 | 37.3 0.3 | 0759 | 36.3 2.0 | 88 11 | 68 4 | 0.0 | 0.0 2.4 | 0001 | SE | 128 | 0.00 | 7.07 | - | - | - |
| Dollarhide Base | 3/25/26 | 82.0 2.9 | 1601 | 42.7 1.4 | 0719 | 48.3 2.1 | 98 1 | 33 9 | 3.4 | 19.0 3.7 | 1644 | W | 265 | 0.00 | 19.16 | 0.182 0.006 | 536 18 | 100 0 |
| Dollarhide 1AS Remote | 3/14/26 | 81.7 1.0 | 1452 | 37.8 5.1 | 0742 | 46.2 3.0 | 95 0 | 28 2 | 1.7 | 12.6 2.7 | 1558 | SW | 228 | - | - | - | - | 100 0 |
| Dollarhide 17B Remote | 3/25/26 | 83.3 3.5 | 1542 | 39.0 0.4 | 0648 | 47.2 2.2 | 99 0 | 31 10 | - | - | - | - | - | - | - | - | 80 20 |
| Dollarhide 18A Remote | 3/25/26 | 82.1 3.6 | 1534 | 34.8 1.8 | 0609 | 45.0 2.2 | 100 0 | 32 12 | - | - | - | - | - | - | - | - | 100 10 |
| Angwin | 3/25/26 | 72.6 4.8 | 1443 | 54.2 5.5 | 0006 | 36.5 5.9 | 56 17 | 15 1 | 2.6 | 12.8 1.1 | 1741 | NNW | 344 | 0.00 | 38.60 | 0.044 0.013 | 0 0 | 90 10 |
| Lower Angwin (Pioneer) | 3/25/26 | 74.0 4.7 | 1545 | 40.0 3.9 | 0538 | - | - | - | 2.3 | 15.9 2.6 | 1300 | SW | 227 | - | - | - | - | 90 10 |
| Deer Park | 3/25/26 | 80.6 3.6 | 1518 | 49.9 2.0 | 0504 | 40.2 3.5 | 64 12 | 28 11 | 6.3 | 19.4 5.2 | 1727 | NW | 315 | 0.00 | 23.61 | 0.170 0.001 | 354 12 | 100 10 |
| Lower Chiles Valley (Brown) | 3/25/26 | 79.6 3.8 | 1547 | 36.6 0.3 | 0539 | 43.0 2.1 | 98 2 | 29 11 | 2.9 | 17.8 2.9 | 1626 | WNW | 302 | 0.00 | 20.67 | 0.171 0.001 | 516 16 | 100 0 |
| Moss Creek Vineyard/Reservior | 3/25/26 | 83.2 5.1 | 1415 | 40.7 1.0 | 0703 | 44.8 2.5 | 95 1 | 28 14 | - | - | - | - | 0.00 | 23.37 | - | - | 0 0 |
| Max | 83.3 | - | 54.2 | - | 48.3 | 100 | 33 | 6.3 | 19.4 | - | - | 0.00 | 42.33 | 0.182 | 536 | - | |
| Avg | - | - | - | - | 43.6 | - | - | 3.3 | - | - | - | - | - | - | - | - | |
| Min | 72.6 | - | 34.8 | - | 36.5 | 56 | 15 | 2.1 | 12.8 | - | - | 0.00 | 19.16 | 0.044 | 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 | 3/25/26 | 83.5 4.6 | 1536 | 41.3 0.7 | 0614 | 45.1 2.3 | 87 2 | 32 11 | - | - | - | - | 0.00 | 27.89 | - | - | 40 20 |
| Fotsch (Maple Lane) | 3/9/26 | 75.9 3.7 | 1625 | 41.4 5.5 | 0743 | 44.5 1.8 | 97 3 | 26 3 | 3.3 | 15.6 1.3 | 1413 | WSW | 249 | 0.00 | 26.01 | - | - | 0 0 |
| Diamond Mtn (Schramsberg) | 3/25/26 | 80.0 2.8 | 1527 | 49.4 2.6 | 0619 | 41.0 3.2 | 74 23 | 31 10 | - | - | - | - | 0.00 | 26.40 | - | - | 100 0 |
| Diamond Mtn (McEachran) | 3/25/26 | 79.1 4.2 | 1526 | 48.8 2.6 | 0504 | 41.2 3.3 | 71 9 | 26 9 | - | - | - | - | - | - | - | - | 100 0 |
| St. Helena-North | 3/25/26 | 84.9 3.2 | 1507 | 42.4 1.0 | 0639 | 40.2 3.0 | 78 0 | 22 10 | 2.5 | 13.6 2.8 | 1612 | W | 274 | 0.00 | 26.66 | 0.148 0.003 | 409 12 | 80 20 |
| St. Helena (NVV Office) | 3/25/26 | 84.7 3.9 | 1503 | 43.5 0.8 | 0511 | - | - | - | 1.9 | 12.4 3.3 | 1538 | W | 268 | 0.00 | 23.51 | - | - | 80 20 |
| Tiara Fria (East St. Helena) | 3/25/26 | 83.2 4.2 | 1637 | 42.0 0.5 | 0639 | 43.3 2.6 | 87 0 | 25 8 | 5.8 | 18.7 6.4 | 1733 | NW | 309 | 0.00 | 21.80 | - | - | 80 20 |
| Rutherford Hill Estate | 3/25/26 | 84.0 4.9 | 1636 | 48.3 2.2 | 0717 | 42.8 2.7 | 68 6 | 27 10 | 2.6 | 17.8 7.2 | 1605 | WSW | 258 | 0.00 | 21.35 | 0.154 0.008 | 435 12 | 80 20 |
| Rutherford-North (Mee Ln) | 3/25/26 | 83.4 5.4 | 1543 | 40.6 1.4 | 0559 | 43.8 1.7 | 88 0 | 27 12 | 3.9 | 18.6 8.1 | 1657 | WSW | 257 | 0.00 | 20.49 | 0.171 0.018 | 450 12 | 80 20 |
| Rutherford (STS) | 3/25/26 | 84.6 3.3 | 1543 | 41.2 1.8 | 0611 | 46.4 0.7 | 89 0 | 31 6 | 3.2 | 20.0 10.0 | 1310 | NNW | 328 | 0.00 | 21.65 | 0.182 0.008 | 532 15 | 80 20 |
| Oakville-NE (Ranch 88) | 3/25/26 | 84.4 2.5 | 1534 | 39.6 0.9 | 0609 | 41.0 1.4 | 87 0 | 25 8 | 2.9 | 17.9 2.2 | 1840 | NNW | 329 | 0.00 | 21.19 | 0.175 0.007 | 505 16 | 0 0 |
| OV561-East | 3/25/26 | 84.0 5.0 | 1529 | 40.7 1.6 | 0706 | - | - | - | - | - | - | - | - | - | - | - | 80 20 |
| Oakville | 3/25/26 | 82.8 2.5 | 1526 | 40.2 0.3 | 0621 | 43.6 2.0 | 90 1 | 27 5 | 3.3 | 17.5 6.6 | 1703 | WSW | 243 | 0.00 | 21.73 | 0.170 0.001 | 513 15 | 100 10 |
| OV518-West | 3/25/26 | 82.1 2.6 | 1518 | 40.8 2.0 | 0541 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| To Kalon Remote (TKKE) | 3/25/26 | 84.9 3.0 | 1507 | 39.6 2.7 | 0527 | - | - | - | - | - | - | - | - | - | - | - | 80 20 |
| To Kalon | 3/25/26 | 83.6 2.8 | 1409 | 41.0 1.6 | 0521 | 44.4 3.3 | 85 0 | 31 8 | 2.7 | 15.8 5.6 | 1544 | W | 279 | 0.00 | 23.62 | 0.154 0.008 | 474 13 | 80 20 |
| To Kalon Remote (TKN5) | 3/25/26 | 85.4 2.3 | 1451 | 39.8 0.6 | 0527 | - | - | - | - | - | - | - | - | - | - | - | 80 20 |
| Yountville (Ranch 67) | 3/25/26 | 82.8 1.7 | 1528 | 40.0 1.7 | 0456 | 44.8 2.3 | 91 2 | 29 6 | 2.3 | 14.9 4.1 | 1628 | WNW | 289 | 0.00 | 19.96 | 0.165 0.005 | 548 5 | 100 0 |
| Stags Leap Dist (Silverado Vineyards) | 3/25/26 | 84.1 0.3 | 1531 | 39.8 1.7 | 0408 | 44.7 3.4 | 89 3 | 30 8 | 1.0 | 9.2 2.2 | 1859 | E | 83 | 0.00 | 23.91 | 0.148 0.020 | 504 13 | 100 0 |
| Borreo (Soda Canyon) | 3/25/26 | 82.0 0.3 | 1536 | 40.4 1.4 | 0701 | 43.9 2.6 | 85 1 | 31 9 | 1.8 | 13.5 3.5 | 1245 | NNW | 342 | 0.00 | 23.83 | 0.154 0.010 | 525 16 | 0 0 |
| Wappo Hill Floor | 3/25/26 | 83.3 3.0 | 1420 | 39.1 0.2 | 0713 | 45.2 3.9 | 100 0 | 31 9 | 1.9 | 13.7 2.8 | 1802 | ESE | 122 | 0.00 | 23.28 | 0.155 0.014 | 488 14 | 80 20 |
| Stags Leap Dist (Chimney Rock) | 3/25/26 | 83.8 0.9 | 1542 | 39.8 0.3 | 0521 | 46.0 3.6 | 92 3 | 36 10 | 2.0 | 14.6 3.4 | 1610 | WNW | 290 | 0.00 | 22.51 | 0.145 0.010 | 455 15 | 100 0 |
| Yountville-South (Ranch 87) | 3/25/26 | 83.4 1.6 | 1449 | 41.2 0.4 | 0657 | 46.4 3.3 | 93 2 | 33 10 | 1.8 | 13.7 3.2 | 1620 | NW | 325 | 0.00 | 23.66 | 0.138 0.005 | 413 3 | 50 10 |
| Yountville-SE (Ranch 85) | 3/25/26 | 83.5 2.4 | 1501 | 41.4 0.0 | 0459 | 46.5 4.0 | 91 4 | 33 11 | 1.8 | 13.2 2.8 | 1644 | NNW | 342 | 0.00 | 22.19 | - | 0 0 | 100 0 |
| Oak Knoll-East (Ranch 53) | 3/25/26 | 85.3 0.5 | 1531 | 41.8 0.2 | 0529 | 44.3 4.3 | 87 1 | 27 7 | 1.7 | 13.5 3.1 | 1622 | WSW | 242 | 0.00 | 20.46 | 0.152 0.006 | 469 11 | 50 10 |
| Napa-NW (Ranch 54) | 3/25/26 | 83.4 1.3 | 1446 | 42.0 1.8 | 0648 | 45.5 3.4 | 89 7 | 28 7 | 1.5 | 14.8 4.2 | 1624 | S | 188 | 0.00 | 22.69 | - | 0 0 | 100 0 |
| Napa-North (Ranch 29) | 3/25/26 | 81.8 2.9 | 1436 | 41.4 0.7 | 0721 | 45.9 4.1 | 93 7 | 33 13 | 1.6 | 15.6 3.4 | 1627 | SSW | 201 | 0.00 | 20.32 | 0.108 0.007 | 314 1 | 100 0 |
| Max | 85.4 | - | 49.4 | - | 46.5 | 100 | 36 | 5.8 | 20.0 | - | - | 0.00 | 27.89 | 0.182 | 548 | - | |
| Avg | - | - | - | - | 44.1 | - | - | 2.4 | - | - | - | - | - | - | - | - | |
| Min | 79.1 | - | 39.1 | - | 40.2 | 68 | 22 | 1.0 | 9.2 | - | - | 0.00 | 19.96 | 0.108 | 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 | 3/25/26 | 75.6 4.3 | 1507 | 53.5 5.2 | 0458 | 39.1 6.7 | 56 13 | 12 1 | 1.3 | 10.0 2.1 | 1348 | N | 5 | 0.00 | 29.29 | 0.132 0.038 | 418 121 | 100 0 |
| Mount George (Napa East) | 3/25/26 | 79.7 2.4 | 1404 | 43.4 1.5 | 0615 | 46.8 5.0 | 92 3 | 32 12 | 1.2 | 13.2 3.1 | 1426 | SSE | 153 | 0.00 | 11.88 | 0.149 0.010 | 510 22 | 100 20 |
| Napa-East (Palmaz 300') | 3/25/26 | 81.3 3.2 | 1404 | 42.2 1.6 | 0604 | 45.5 4.2 | 91 3 | 30 9 | 1.8 | 14.2 1.3 | 1439 | WSW | 242 | 0.00 | 18.31 | 0.143 0.011 | 467 17 | 100 0 |
| Napa-East (Palmaz 1200') | 3/9/26 | 70.6 2.3 | 1500 | 43.0 5.0 | 0041 | 47.8 0.7 | 100 12 | 4 34 | 2.5 | 11.4 4.4 | 1611 | WNW | 292 | - | - | 0.115 0.012 | 432 5 | 0 0 |
| Napa-East (Palmaz 1400') | 3/25/26 | 76.3 2.9 | 1407 | 45.0 3.8 | 0455 | 42.8 5.7 | 77 18 | 29 11 | 3.1 | 15.2 2.4 | 2121 | WNW | 288 | 0.00 | 24.80 | 0.155 0.019 | 503 18 | 90 10 |
| Wooden Valley | 3/25/26 | 76.9 3.9 | 1450 | 41.3 0.2 | 0540 | 45.3 1.8 | 91 1 | 30 7 | 3.2 | 15.0 1.0 | 1643 | SSW | 195 | 0.00 | 24.00 | 0.157 0.013 | 509 22 | 100 0 |
| Napa-West Upper (Truchard) | 3/25/26 | 80.5 3.7 | 1400 | 46.2 2.7 | 0648 | 44.0 5.0 | 88 20 | 33 12 | 3.0 | 20.6 6.5 | 1625 | WSW | 254 | 0.00 | 20.16 | 0.159 0.020 | 507 22 | 100 20 |
| Napa-West Lower (Truchard) | 3/25/26 | 82.1 3.8 | 1317 | 36.4 1.0 | 0615 | 44.8 3.9 | 100 0 | 30 11 | - | - | - | - | - | - | - | - | 90 20 |
| Napa-South (Toyon Farms) | 3/25/26 | 79.7 3.7 | 1307 | 44.2 2.1 | 0655 | 47.9 3.9 | 93 5 | 45 19 | 3.4 | 18.8 3.4 | 1531 | WSW | 252 | 0.00 | 13.94 | 0.084 0.019 | 242 9 | 100 20 |
| Toyon Remote 1 | 3/25/26 | 82.3 1.9 | 1344 | 36.3 0.0 | 0626 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 3/25/26 | 79.4 3.2 | 1310 | 38.9 0.6 | 0503 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 3/25/26 | 82.5 2.8 | 1325 | 38.6 1.3 | 0616 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 3/25/26 | 78.6 4.0 | 1405 | 40.9 3.8 | 0623 | 45.1 5.7 | 91 4 | 35 15 | 2.8 | 17.9 3.1 | 1535 | WNW | 295 | 0.00 | 19.35 | 0.154 0.022 | 518 23 | 100 20 |
| Carneros (Saintsbury) | 3/25/26 | 77.9 4.4 | 1425 | 41.6 1.7 | 0643 | 45.5 5.6 | 89 4 | 37 17 | 4.1 | 22.3 4.6 | 1523 | W | 268 | 0.00 | 5.62 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 3/25/26 | 79.0 3.9 | 1413 | 42.1 0.2 | 0721 | 43.7 5.9 | - | - | 4.4 | 18.0 3.1 | 1603 | WSW | 237 | 0.00 | 18.31 | 0.152 0.020 | 472 21 | 60 60 |
| Suscol Mtn (Ranch 93) | 3/25/26 | 77.6 2.7 | 1410 | 49.8 5.1 | 0737 | 41.8 6.8 | 74 28 | 29 8 | 6.0 | 23.6 5.8 | 1454 | NW | 312 | 0.00 | 13.80 | - | - | 90 10 |
| Suscol Upper (Ranch 92) | 3/25/26 | 75.6 4.2 | 1304 | 50.1 4.6 | 0736 | 42.6 6.7 | 74 24 | 30 9 | 3.0 | 18.5 3.6 | 1446 | SW | 222 | 0.00 | 18.16 | - | - | 90 10 |
| Stanly (Ranch 45) | 3/25/26 | 79.8 3.8 | 1247 | 42.8 1.7 | 0715 | 45.5 6.1 | 88 7 | 37 18 | 4.6 | 22.0 2.4 | 1518 | SW | 234 | 0.00 | 19.65 | 0.176 0.031 | 551 23 | 60 60 |
| Carneros Upper (Ranch 81) | 3/25/26 | 76.6 4.7 | 1348 | 48.8 2.4 | 0733 | 42.5 7.9 | - | - | 8.6 | 30.1 5.1 | 1527 | W | 268 | - | - | - | - | 90 10 |
| Carneros (Mitsuko) | 3/25/26 | 78.0 3.4 | 1232 | 35.7 1.6 | 0550 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 3/25/26 | 81.0 6.7 | 1407 | 40.2 0.9 | 0642 | 45.6 7.6 | 87 13 | 40 40 | 1.2 | 16.0 2.8 | 1625 | WNW | 294 | 0.00 | 16.94 | 0.122 0.011 | 404 18 | 0 0 |
| Carneros (Milton Rd) | 3/25/26 | 77.8 4.0 | 1357 | 38.0 2.8 | 0633 | 45.7 6.5 | 90 0 | 42 21 | - | - | - | - | 0.00 | 17.00 | - | - | 0 0 |
| Max | 82.5 | - | 53.5 | - | 47.9 | 100 | 45 | 8.6 | 30.1 | - | - | 0.00 | 29.29 | 0.176 | 551 | - | |
| Avg | - | - | - | - | 44.4 | - | - | 3.4 | - | - | - | - | - | - | - | - | |
| Min | 75.6 | - | 35.7 | - | 39.1 | 56 | 12 | 1.2 | 10.0 | - | - | 0.00 | 5.62 | 0.084 | 242 | - |