| 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 | 4/4/26 | 75.0 4.6 | 1556 | 41.7 4.3 | 0629 | - | - | - | - | - | - | - | 0.00 | 43.59 | - | - | 70 20 |
| Pope Valley (Weeks Lake) | 4/4/26 | 79.5 4.7 | 1517 | 34.9 1.4 | 0426 | 38.8 10.1 | 100 6 | 15 3 | 1.5 | 13.4 5.0 | 1339 | ESE | 123 | 0.00 | 22.17 | 0.161 0.018 | 523 19 | 100 10 |
| 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 | 4/4/26 | 81.3 6.1 | 1602 | 38.3 6.8 | 0704 | 40.8 8.6 | 98 13 | 19 3 | 2.7 | 17.1 6.2 | 1239 | E | 91 | 0.00 | 19.65 | 0.191 0.021 | 593 23 | 100 10 |
| Dollarhide 1AS Remote | 4/4/26 | 83.3 5.8 | 1744 | 34.9 1.1 | 0442 | 40.4 5.9 | 96 0 | 18 3 | 1.6 | 13.1 6.4 | 1202 | ENE | 66 | - | - | - | - | 100 10 |
| Dollarhide 17B Remote | 4/4/26 | 83.7 3.9 | 1747 | 35.3 3.6 | 0612 | 41.9 6.1 | 99 8 | 17 2 | - | - | - | - | - | - | - | - | 100 10 |
| Dollarhide 18A Remote | 4/4/26 | 84.2 7.0 | 1747 | 33.7 0.4 | 0349 | 39.6 5.6 | 100 1 | 18 3 | - | - | - | - | - | - | - | - | 100 10 |
| Angwin | 4/4/26 | 73.4 6.5 | 1517 | 51.5 6.5 | 0700 | 28.6 7.2 | 42 1 | 15 2 | 5.3 | 17.0 14.2 | 0835 | N | 7 | 0.00 | 39.79 | 0.081 0.023 | 0 0 | 40 10 |
| Lower Angwin (Pioneer) | 4/4/26 | 74.7 4.3 | 1503 | 47.1 2.9 | 0104 | - | - | - | 3.3 | 13.1 9.4 | 1059 | NE | 51 | - | - | - | - | 50 10 |
| Deer Park | 4/4/26 | 82.2 5.5 | 1612 | 54.8 1.4 | 0155 | 33.2 8.6 | 48 7 | 16 5 | 3.4 | 19.5 9.8 | 1119 | NE | 39 | 0.00 | 24.32 | 0.170 0.023 | 394 2 | 100 10 |
| Lower Chiles Valley (Brown) | 4/4/26 | 80.8 7.0 | 1808 | 34.7 2.7 | 0614 | 37.8 8.6 | 97 6 | 17 4 | 1.7 | 13.2 7.5 | 1608 | ESE | 106 | 0.00 | 21.36 | 0.174 0.020 | 558 28 | 80 20 |
| Moss Creek Vineyard/Reservior | 4/4/26 | 81.8 5.2 | 1759 | 38.5 4.5 | 0652 | 38.3 7.4 | 95 8 | 15 2 | - | - | - | - | 0.00 | 23.90 | - | - | 40 20 |
| Max | 84.2 | - | 54.8 | - | 41.9 | 100 | 19 | 5.3 | 19.5 | - | - | 0.00 | 43.59 | 0.191 | 593 | - | |
| Avg | - | - | - | - | 37.7 | - | - | 2.8 | - | - | - | - | - | - | - | - | |
| Min | 73.4 | - | 33.7 | - | 28.6 | 42 | 15 | 1.5 | 13.1 | - | - | 0.00 | 19.65 | 0.081 | 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 | 4/4/26 | 88.0 7.0 | 1411 | 40.0 5.2 | 0550 | 41.2 0.7 | 94 9 | 17 1 | - | - | - | - | 0.00 | 28.45 | - | - | 0 10 |
| 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) | 4/4/26 | 78.9 4.0 | 1654 | 56.5 4.1 | 0242 | 31.2 7.0 | 42 2 | 15 5 | - | - | - | - | 0.00 | 27.04 | - | - | 80 20 |
| Diamond Mtn (McEachran) | 4/4/26 | 83.2 4.1 | 1616 | 49.2 0.0 | 0416 | 36.0 9.2 | 67 10 | 14 4 | - | - | - | - | - | - | - | - | 100 20 |
| St. Helena-North | 4/4/26 | 83.1 3.1 | 1539 | 41.5 4.1 | 0507 | 34.7 9.5 | 84 15 | 11 5 | 2.3 | 12.7 3.3 | 1520 | ESE | 122 | 0.00 | 27.35 | 0.162 0.006 | 456 21 | 100 20 |
| St. Helena (NVV Office) | 4/4/26 | 84.7 4.9 | 1556 | 41.7 5.3 | 0617 | - | - | - | 1.4 | 11.0 5.9 | 1226 | NE | 51 | 0.00 | 24.05 | - | - | 100 20 |
| Tiara Fria (East St. Helena) | 4/4/26 | 84.0 6.0 | 1700 | 41.0 3.4 | 0624 | 37.4 9.2 | 91 8 | 15 4 | 2.3 | 15.4 6.9 | 1121 | NE | 43 | 0.00 | 22.33 | - | - | 100 20 |
| Rutherford Hill Estate | 4/4/26 | 85.6 3.5 | 1539 | 50.2 2.5 | 0339 | 34.2 7.7 | 55 7 | 15 4 | 1.7 | 13.2 4.4 | 1033 | E | 83 | 0.00 | 21.81 | 0.160 0.000 | 477 17 | 100 10 |
| Rutherford-North (Mee Ln) | 4/4/26 | 86.4 5.9 | 1729 | 40.3 1.4 | 0630 | 39.4 7.3 | 90 5 | 15 2 | 2.4 | 13.6 4.6 | 1135 | NE | 53 | 0.00 | 20.92 | 0.169 0.002 | 496 20 | 100 10 |
| Rutherford (STS) | 4/4/26 | 85.6 6.7 | 1454 | 42.4 2.3 | 0631 | 40.8 7.1 | 88 7 | 18 1 | 2.5 | 13.3 11.0 | 1044 | N | 350 | 0.00 | 22.08 | 0.195 0.017 | 591 21 | 100 20 |
| Oakville-NE (Ranch 88) | 4/4/26 | 85.5 5.9 | 1504 | 40.3 1.1 | 0511 | 34.5 8.4 | 86 7 | 12 2 | 2.0 | 13.3 8.1 | 1233 | E | 91 | 0.00 | 21.48 | 0.189 0.025 | 555 23 | 0 0 |
| OV561-East | 4/4/26 | 87.1 4.6 | 1540 | 42.7 1.9 | 0208 | - | - | - | - | - | - | - | - | - | - | - | 90 20 |
| Oakville | 4/4/26 | 84.7 5.5 | 1607 | 40.8 2.7 | 0643 | 36.8 9.0 | 88 4 | 13 3 | 2.6 | 12.4 8.3 | 1201 | N | 352 | 0.00 | 21.93 | 0.191 0.028 | 560 29 | 90 20 |
| OV518-West | 4/4/26 | 82.9 4.1 | 1437 | 41.6 2.8 | 0652 | - | - | - | - | - | - | - | - | - | - | - | 90 20 |
| To Kalon Remote (TKKE) | 4/4/26 | 85.8 3.9 | 1549 | 41.8 1.0 | 0126 | - | - | - | - | - | - | - | - | - | - | - | 100 20 |
| To Kalon | 4/4/26 | 84.5 3.9 | 1536 | 40.3 3.2 | 0648 | 37.0 8.4 | 91 10 | 15 4 | 2.5 | 14.2 3.4 | 1132 | NE | 36 | 0.00 | 23.88 | 0.184 0.023 | 531 20 | 100 10 |
| To Kalon Remote (TKN5) | 4/4/26 | 84.7 5.4 | 1536 | 39.8 2.7 | 0650 | - | - | - | - | - | - | - | - | - | - | - | 100 20 |
| Yountville (Ranch 67) | 4/4/26 | 83.4 5.5 | 1534 | 41.4 1.9 | 0705 | 36.1 8.5 | 82 2 | 13 2 | 2.6 | 13.7 6.0 | 1143 | NNE | 14 | 0.00 | 20.20 | 0.193 0.031 | 602 16 | 90 20 |
| Stags Leap Dist (Silverado Vineyards) | 4/4/26 | 84.3 7.4 | 1510 | 42.4 1.8 | 0654 | 37.0 9.0 | 85 5 | 14 3 | 1.8 | 11.4 7.1 | 1159 | NNW | 340 | 0.00 | 24.16 | 0.179 0.018 | 551 26 | 70 20 |
| Borreo (Soda Canyon) | 4/4/26 | 81.8 5.4 | 1525 | 44.2 0.1 | 0323 | 36.4 10.1 | 76 2 | 15 4 | 2.2 | 16.1 11.4 | 1309 | NNE | 27 | 0.00 | 24.10 | 0.185 0.040 | 584 22 | 40 10 |
| Wappo Hill Floor | 4/4/26 | 85.6 6.3 | 1549 | 37.1 4.4 | 0717 | 38.4 7.8 | 100 15 | 15 2 | 2.0 | 12.0 13.0 | 1223 | ENE | 72 | 0.00 | 23.50 | 0.181 0.047 | 537 18 | 90 20 |
| Stags Leap Dist (Chimney Rock) | 4/4/26 | 83.5 5.8 | 1539 | 39.0 3.3 | 0648 | 40.5 8.4 | 94 8 | 19 3 | 2.1 | 12.4 10.4 | 1219 | ENE | 77 | 0.00 | 22.77 | 0.168 0.045 | 502 20 | 90 20 |
| Yountville-South (Ranch 87) | 4/4/26 | 84.0 4.9 | 1503 | 39.7 4.5 | 0704 | 38.6 9.1 | 92 9 | 15 3 | 2.0 | 11.1 7.1 | 1236 | ENE | 62 | 0.00 | 23.91 | 0.172 0.011 | 482 13 | 40 10 |
| Yountville-SE (Ranch 85) | 4/4/26 | 85.0 6.1 | 1620 | 40.7 3.0 | 0639 | 39.9 10.4 | 91 3 | 15 3 | 1.1 | 10.6 13.0 | 1323 | ENE | 63 | 0.00 | 22.44 | - | 0 0 | 90 20 |
| Oak Knoll-East (Ranch 53) | 4/3/26 | 80.5 10.3 | 1722 | 45.0 4.7 | 0045 | 27.6 11.1 | 76 19 | 10 11 | 5.2 | 21.4 7.7 | 0509 | NNW | 341 | 0.00 | 20.76 | 0.206 0.064 | 539 11 | 50 20 |
| Napa-NW (Ranch 54) | 4/4/26 | 84.4 6.0 | 1606 | 41.9 6.8 | 0640 | 36.8 9.6 | 84 19 | 14 3 | 1.6 | 11.6 6.8 | 1334 | NNW | 346 | 0.00 | 23.03 | - | 0 0 | 90 20 |
| Napa-North (Ranch 29) | 4/4/26 | 84.8 4.0 | 1555 | 40.4 2.8 | 0729 | 40.3 10.2 | 100 0 | 15 2 | 1.5 | 12.0 6.6 | 1637 | S | 183 | 0.00 | 20.62 | 0.126 0.018 | 337 30 | 90 20 |
| Max | 88.0 | - | 56.5 | - | 41.2 | 100 | 19 | 2.6 | 16.1 | - | - | 0.00 | 28.45 | 0.195 | 602 | - | |
| Avg | - | - | - | - | 37.4 | - | - | 2.0 | - | - | - | - | - | - | - | - | |
| Min | 78.9 | - | 37.1 | - | 31.2 | 42 | 11 | 1.1 | 10.6 | - | - | 0.00 | 20.20 | 0.126 | 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 | 4/4/26 | 76.6 6.4 | 1458 | 55.0 7.3 | 0554 | 31.4 5.2 | 43 8 | 19 2 | 2.0 | 10.3 9.6 | 1300 | ESE | 104 | 0.00 | 29.86 | 0.222 0.030 | 770 306 | 80 20 |
| Mount George (Napa East) | 4/4/26 | 82.6 1.8 | 1455 | 40.9 0.2 | 0710 | 40.0 9.0 | 91 4 | 16 3 | 1.3 | 10.4 9.5 | 1215 | ENE | 73 | 0.00 | 12.38 | 0.170 0.023 | 558 21 | 90 20 |
| Napa-East (Palmaz 300') | 4/4/26 | 84.3 5.3 | 1453 | 43.4 0.8 | 0639 | 38.7 9.3 | 85 8 | 15 3 | 2.2 | 11.7 3.3 | 1335 | SE | 146 | 0.00 | 18.82 | 0.172 0.004 | 510 28 | 90 20 |
| Napa-East (Palmaz 1200') | 4/2/26 | 62.1 9.0 | 1600 | 36.9 12.0 | 0551 | 35.4 1.6 | 100 0 | 26 14 | 2.5 | 14.6 0.4 | 1213 | ENE | 76 | - | - | 0.138 0.101 | 560 512 | 60 10 |
| Napa-East (Palmaz 1400') | 4/4/26 | 76.6 6.4 | 1438 | 43.9 0.0 | 0102 | 37.6 8.1 | 79 0 | 21 2 | 3.6 | 14.8 15.4 | 0849 | NNE | 29 | 0.00 | 25.60 | 0.176 0.019 | 549 20 | 70 20 |
| Wooden Valley | 4/4/26 | 79.3 4.1 | 1634 | 35.1 3.4 | 0656 | 43.8 14.1 | 98 3 | 17 3 | 0.5 | 12.8 10.2 | 1216 | NNE | 12 | 0.00 | 24.50 | 0.167 0.023 | 556 37 | 40 10 |
| Napa-West Upper (Truchard) | 4/4/26 | 85.6 6.7 | 1517 | 45.7 0.2 | 0613 | 37.7 10.2 | 70 10 | 14 3 | 2.7 | 14.1 7.4 | 1601 | S | 176 | 0.00 | 20.48 | 0.188 0.020 | 561 26 | 90 20 |
| Napa-West Lower (Truchard) | 4/4/26 | 88.6 6.0 | 1459 | 37.8 1.4 | 0616 | 40.6 8.9 | 95 5 | 14 2 | - | - | - | - | - | - | - | - | 60 10 |
| Napa-South (Toyon Farms) | 4/4/26 | 86.1 4.6 | 1518 | 43.8 0.1 | 0713 | 44.8 6.0 | 87 10 | 21 3 | 1.6 | 11.8 0.7 | 1610 | SSE | 159 | 0.00 | 14.27 | 0.097 0.002 | 259 13 | 90 20 |
| Toyon Remote 1 | 4/4/26 | 84.7 5.9 | 1503 | 35.4 0.5 | 0616 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 4/4/26 | 84.3 4.6 | 1501 | 38.3 0.0 | 0628 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 4/4/26 | 84.7 5.8 | 1503 | 38.7 0.5 | 0656 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 4/4/26 | 83.7 5.5 | 1506 | 39.3 0.2 | 0636 | 40.1 8.7 | 94 3 | 16 5 | 2.1 | 11.1 8.5 | 1507 | SSE | 152 | 0.00 | 19.68 | 0.174 0.027 | 560 18 | 90 20 |
| Carneros (Saintsbury) | 4/4/26 | 81.7 4.3 | 1402 | 41.6 1.8 | 0700 | 40.9 8.9 | 85 15 | 17 5 | 2.1 | 13.2 3.4 | 1434 | SE | 131 | 0.00 | 5.97 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 4/4/26 | 82.9 3.7 | 1505 | 39.9 0.2 | 0600 | 39.6 9.1 | - | - | 3.6 | 15.6 4.9 | 1354 | E | 91 | 0.00 | 18.65 | 0.181 0.016 | 514 28 | 90 20 |
| Suscol Mtn (Ranch 93) | 4/4/26 | 83.2 6.2 | 1329 | 57.0 6.6 | 0745 | 34.7 9.7 | 46 2 | 16 3 | 4.4 | 18.6 12.9 | 1246 | SSE | 150 | 0.00 | 14.30 | - | - | 90 20 |
| Suscol Upper (Ranch 92) | 4/4/26 | 82.4 2.8 | 1527 | 56.7 7.2 | 0724 | 35.3 8.1 | 51 7 | 16 3 | 1.9 | 15.7 9.0 | 1408 | ENE | 75 | 0.00 | 18.55 | - | - | 100 20 |
| Stanly (Ranch 45) | 4/4/26 | 85.4 0.5 | 1534 | 42.4 1.6 | 0718 | 41.3 7.5 | 90 4 | 15 3 | 3.1 | 13.4 11.0 | 1422 | SE | 135 | 0.00 | 20.12 | 0.202 0.029 | 599 43 | 90 20 |
| Carneros Upper (Ranch 81) | 4/4/26 | 84.2 5.9 | 1449 | 49.5 0.2 | 0708 | 36.4 9.6 | - | - | 3.3 | 13.1 14.0 | 1452 | ESE | 122 | - | - | - | - | 90 20 |
| Carneros (Mitsuko) | 4/4/26 | 83.7 4.5 | 1520 | 34.8 0.4 | 0611 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 4/4/26 | 82.9 4.6 | 1434 | 39.1 0.6 | 0652 | 42.2 10.2 | 100 0 | 0 13 | 1.3 | 11.5 8.1 | 1508 | SSE | 160 | 0.00 | 16.94 | 0.148 0.025 | 466 12 | 0 0 |
| Carneros (Milton Rd) | 4/4/26 | 83.0 4.4 | 1704 | 38.2 1.1 | 0655 | 41.0 8.6 | 91 5 | 16 4 | - | - | - | - | 0.00 | 17.12 | - | - | 50 20 |
| Max | 88.6 | - | 57.0 | - | 44.8 | 100 | 21 | 4.4 | 18.6 | - | - | 0.00 | 29.86 | 0.222 | 770 | - | |
| Avg | - | - | - | - | 39.2 | - | - | 2.4 | - | - | - | - | - | - | - | - | |
| Min | 76.6 | - | 34.8 | - | 31.4 | 43 | 0 | 0.5 | 10.3 | - | - | 0.00 | 5.97 | 0.097 | 259 | - |