| 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 | 3/19/26 | 86.3 1.6 | 1629 | 51.1 1.6 | 0653 | - | - | - | - | - | - | - | 0.00 | 42.33 | - | - | 60 60 |
| Pope Valley (Weeks Lake) | 3/19/26 | 91.1 2.6 | 1540 | 39.4 0.2 | 0653 | 50.3 0.6 | 100 0 | 22 5 | 0.9 | 7.9 1.3 | 1341 | E | 80 | 0.00 | 21.60 | 0.142 0.004 | 464 1 | 60 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 | 3/19/26 | 90.4 1.6 | 1617 | 47.9 1.9 | 0738 | 55.8 0.1 | 100 0 | 23 11 | 1.4 | 9.3 2.4 | 1313 | ESE | 116 | 0.00 | 19.16 | 0.163 0.011 | 518 4 | 60 10 |
| 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 | 3/19/26 | 94.8 1.9 | 1632 | 43.8 1.4 | 0747 | 54.7 0.6 | 100 0 | 28 1 | - | - | - | - | - | - | - | - | 50 10 |
| Dollarhide 18A Remote | 3/19/26 | 96.7 3.2 | 1743 | 39.8 0.0 | 0643 | 51.4 0.0 | 100 0 | 22 9 | - | - | - | - | - | - | - | - | 50 10 |
| Angwin | 3/19/26 | 83.3 1.7 | 1552 | 62.6 0.3 | 0643 | 45.2 0.6 | 57 5 | 25 2 | 4.6 | 12.4 0.9 | 0025 | N | 349 | 0.00 | 38.60 | 0.076 0.007 | 0 0 | 100 20 |
| Lower Angwin (Pioneer) | 3/19/26 | 85.2 0.8 | 1633 | 51.6 2.0 | 0449 | - | - | - | 2.7 | 10.8 0.9 | 1556 | NW | 310 | - | - | - | - | 100 20 |
| Deer Park | 3/19/26 | 91.4 0.1 | 1534 | 62.4 0.0 | 0415 | 52.8 1.7 | 63 4 | 26 4 | 2.1 | 10.0 3.0 | 1657 | WNW | 300 | 0.00 | 23.61 | 0.136 0.004 | 348 2 | 50 10 |
| Lower Chiles Valley (Brown) | 3/19/26 | 91.2 1.3 | 1638 | 43.6 0.8 | 0621 | 52.6 0.7 | 100 0 | 24 5 | 1.5 | 9.3 0.8 | 1040 | ENE | 57 | 0.00 | 20.67 | 0.161 0.000 | 500 1 | 60 10 |
| Moss Creek Vineyard/Reservior | 3/19/26 | 86.5 3.9 | 1822 | 47.2 0.2 | 0741 | 54.6 0.3 | 100 0 | 24 6 | - | - | - | - | 0.00 | 23.37 | - | - | 0 0 |
| Max | 96.7 | - | 62.6 | - | 55.8 | 100 | 28 | 4.6 | 12.4 | - | - | 0.00 | 42.33 | 0.163 | 518 | - | |
| Avg | - | - | - | - | 52.2 | - | - | 2.2 | - | - | - | - | - | - | - | - | |
| Min | 83.3 | - | 39.4 | - | 45.2 | 57 | 22 | 0.9 | 7.9 | - | - | 0.00 | 19.16 | 0.076 | 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 | 3/19/26 | 94.6 0.6 | 1334 | 48.3 0.8 | 0708 | 54.4 0.2 | 98 2 | 27 2 | - | - | - | - | 0.00 | 27.89 | - | - | 40 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) | 3/19/26 | 89.3 0.0 | 1610 | 64.2 0.0 | 0351 | 50.5 1.2 | 65 2 | 23 4 | - | - | - | - | 0.00 | 26.40 | - | - | 100 20 |
| Diamond Mtn (McEachran) | 3/19/26 | 90.3 0.5 | 1349 | 58.3 0.3 | 0733 | 51.8 0.9 | 75 5 | 27 2 | - | - | - | - | - | - | - | - | 30 10 |
| St. Helena-North | 3/19/26 | 95.0 1.6 | 1525 | 49.9 0.5 | 0715 | 50.2 0.2 | 93 7 | 21 0 | 1.8 | 8.1 1.5 | 1350 | SSW | 204 | 0.00 | 26.66 | 0.137 0.005 | 396 0 | 50 10 |
| St. Helena (NVV Office) | 3/19/26 | 94.9 0.8 | 1700 | 50.0 0.3 | 0740 | - | - | - | 0.9 | 6.5 1.6 | 1401 | SE | 124 | 0.00 | 23.51 | - | - | 50 10 |
| Tiara Fria (East St. Helena) | 3/19/26 | 93.9 3.4 | 1713 | 48.6 0.0 | 0715 | 54.2 1.2 | 96 1 | 22 0 | 1.4 | 8.0 3.0 | 1740 | SE | 131 | 0.00 | 21.80 | - | - | 50 10 |
| Rutherford Hill Estate | 3/19/26 | 95.0 3.8 | 1555 | 59.3 0.4 | 0721 | 55.6 1.0 | 75 4 | 23 0 | 1.3 | 9.4 0.9 | 1703 | SSE | 163 | 0.00 | 21.35 | 0.142 0.002 | 424 2 | 50 10 |
| Rutherford-North (Mee Ln) | 3/19/26 | 96.4 5.6 | 1653 | 46.4 0.4 | 0725 | 54.4 1.0 | 95 1 | 21 6 | 1.9 | 9.9 1.5 | 1709 | ESE | 116 | 0.00 | 20.49 | 0.145 0.005 | 435 2 | 50 10 |
| Rutherford (STS) | 3/19/26 | 95.7 3.8 | 1358 | 48.5 0.0 | 0713 | 56.7 1.1 | 91 1 | 27 5 | 1.7 | 10.4 0.4 | 1648 | SE | 146 | 0.00 | 21.65 | 0.169 0.007 | 519 1 | 50 10 |
| Oakville-NE (Ranch 88) | 3/19/26 | 94.5 3.5 | 1616 | 45.7 1.1 | 0656 | 52.7 0.5 | 98 2 | 17 7 | 0.9 | 9.6 2.1 | 1657 | S | 182 | 0.00 | 21.19 | 0.159 0.003 | 487 1 | 0 0 |
| OV561-East | 3/19/26 | 96.0 3.9 | 1555 | 47.6 0.8 | 0751 | - | - | - | - | - | - | - | - | - | - | - | 50 10 |
| Oakville | 3/19/26 | 94.0 3.8 | 1605 | 46.4 0.4 | 0728 | 54.2 0.7 | 98 1 | 18 6 | 1.7 | 11.7 0.0 | 1700 | SE | 144 | 0.00 | 21.73 | 0.162 0.005 | 496 2 | 50 10 |
| OV518-West | 3/19/26 | 90.5 0.2 | 1605 | 46.9 1.3 | 0717 | - | - | - | - | - | - | - | - | - | - | - | 50 10 |
| To Kalon Remote (TKKE) | 3/19/26 | 96.6 4.5 | 1530 | 47.6 0.9 | 0730 | - | - | - | - | - | - | - | - | - | - | - | 50 10 |
| To Kalon | 3/19/26 | 96.0 5.3 | 1539 | 47.7 0.7 | 0727 | 54.3 0.7 | 98 2 | 17 9 | 1.7 | 10.0 1.3 | 1647 | SE | 140 | 0.00 | 23.62 | 0.157 0.002 | 462 0 | 50 10 |
| To Kalon Remote (TKN5) | 3/19/26 | 95.6 2.8 | 1613 | 46.9 1.1 | 0615 | - | - | - | - | - | - | - | - | - | - | - | 50 10 |
| Yountville (Ranch 67) | 3/19/26 | 90.6 1.9 | 1447 | 46.6 0.9 | 0704 | 55.0 1.0 | 96 0 | 28 2 | 1.7 | 10.9 0.1 | 1639 | S | 177 | 0.00 | 19.96 | 0.160 0.003 | 498 4 | 60 10 |
| Stags Leap Dist (Silverado Vineyards) | 3/19/26 | 90.3 2.2 | 1508 | 45.7 2.4 | 0737 | 54.8 1.2 | 98 0 | 28 1 | 1.4 | 10.5 0.1 | 1604 | S | 172 | 0.00 | 23.91 | 0.161 0.002 | 488 1 | 70 10 |
| Borreo (Soda Canyon) | 3/19/26 | 88.4 0.7 | 1507 | 50.0 0.7 | 0659 | 55.0 1.6 | 95 2 | 32 2 | 1.9 | 8.0 1.5 | 1537 | SSE | 168 | 0.00 | 23.83 | 0.159 0.002 | 505 4 | 0 0 |
| Wappo Hill Floor | 3/19/26 | 92.6 2.1 | 1519 | 44.5 0.6 | 0719 | 55.7 1.2 | 100 0 | 29 1 | 1.4 | 9.9 0.0 | 1522 | SSE | 167 | 0.00 | 23.28 | 0.157 0.002 | 474 3 | 50 10 |
| Stags Leap Dist (Chimney Rock) | 3/19/26 | 90.8 0.7 | 1458 | 46.6 0.3 | 0729 | 56.9 1.4 | 100 0 | 34 1 | 1.6 | 10.3 1.0 | 1615 | SE | 124 | 0.00 | 22.51 | 0.146 0.003 | 444 5 | 60 10 |
| Yountville-South (Ranch 87) | 3/19/26 | 91.1 1.4 | 1509 | 47.3 0.5 | 0734 | 56.6 1.1 | 100 0 | 32 1 | 1.2 | 10.4 0.5 | 1524 | S | 174 | 0.00 | 23.66 | 0.134 0.003 | 392 4 | 50 10 |
| Yountville-SE (Ranch 85) | 3/19/26 | 91.8 0.3 | 1427 | 46.6 0.9 | 0654 | 56.9 1.3 | 100 0 | 30 0 | 0.7 | 7.8 0.0 | 1543 | SSW | 201 | 0.00 | 22.19 | - | 0 0 | 60 10 |
| Oak Knoll-East (Ranch 53) | 3/19/26 | 90.7 0.1 | 1509 | 47.8 0.0 | 0650 | 54.5 1.1 | 95 1 | 30 3 | 1.3 | 10.0 0.2 | 1502 | S | 171 | 0.00 | 20.46 | 0.151 0.001 | 454 12 | 50 10 |
| Napa-NW (Ranch 54) | 3/19/26 | 89.6 0.4 | 1431 | 49.1 0.6 | 0725 | 54.8 1.7 | 100 7 | 33 6 | 1.4 | 9.2 0.4 | 1522 | SSE | 154 | 0.00 | 22.69 | - | 0 0 | 70 10 |
| Napa-North (Ranch 29) | 3/19/26 | 90.1 0.0 | 1708 | 49.5 0.1 | 0726 | 57.4 1.4 | 100 0 | 36 7 | 1.2 | 11.5 1.0 | 1548 | SSW | 195 | 0.00 | 20.32 | 0.109 0.002 | 297 2 | 60 10 |
| Max | 96.6 | - | 64.2 | - | 57.4 | 100 | 36 | 1.9 | 11.7 | - | - | 0.00 | 27.89 | 0.169 | 519 | - | |
| Avg | - | - | - | - | 54.6 | - | - | 1.4 | - | - | - | - | - | - | - | - | |
| Min | 88.4 | - | 44.5 | - | 50.2 | 65 | 17 | 0.7 | 6.5 | - | - | 0.00 | 19.96 | 0.109 | 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 | 3/19/26 | 86.6 3.4 | 1431 | 66.0 1.9 | 0619 | 49.2 2.3 | 52 1 | 23 7 | 1.6 | 7.8 2.0 | 0950 | N | 2 | 0.00 | 29.29 | 0.234 0.039 | 852 173 | 100 20 |
| Mount George (Napa East) | 3/19/26 | 90.1 1.3 | 1444 | 51.8 1.3 | 0708 | 58.9 1.8 | 100 1 | 38 4 | 0.8 | 7.8 1.3 | 1448 | W | 281 | 0.00 | 11.88 | 0.156 0.003 | 496 2 | 0 10 |
| Napa-East (Palmaz 300') | 3/19/26 | 89.8 0.0 | 1720 | 50.8 0.0 | 0723 | 57.2 1.5 | 100 0 | 37 4 | 1.8 | 9.7 1.6 | 1957 | NE | 55 | 0.00 | 18.31 | 0.147 0.000 | 447 1 | 60 10 |
| 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') | 3/19/26 | 85.9 0.2 | 1409 | 54.3 0.4 | 0426 | 56.1 2.0 | 92 2 | 35 0 | 2.9 | 9.7 0.3 | 1546 | SW | 219 | 0.00 | 24.80 | 0.162 0.000 | 496 3 | 100 20 |
| Wooden Valley | 3/19/26 | 88.7 2.5 | 1544 | 45.6 1.9 | 0719 | 54.7 1.5 | 98 0 | 23 11 | 0.1 | 7.7 0.1 | 1554 | SW | 221 | 0.00 | 24.00 | 0.152 0.002 | 496 2 | 90 10 |
| Napa-West Upper (Truchard) | 3/19/26 | 89.2 0.2 | 1649 | 53.8 1.9 | 0638 | 56.7 0.9 | 100 11 | 38 7 | 1.9 | 11.7 1.6 | 1510 | S | 188 | 0.00 | 20.16 | 0.165 0.003 | 494 3 | 0 0 |
| Napa-West Lower (Truchard) | 3/19/26 | 92.3 0.4 | 1650 | 43.7 1.2 | 0721 | 54.6 0.4 | 100 0 | 37 6 | - | - | - | - | - | - | - | - | 60 10 |
| Napa-South (Toyon Farms) | 3/19/26 | 88.9 0.4 | 1624 | 52.9 0.4 | 0719 | 59.7 0.3 | 100 0 | 46 7 | 1.9 | 11.6 3.2 | 1457 | SW | 217 | 0.00 | 13.94 | 0.081 0.004 | 233 2 | 40 10 |
| Toyon Remote 1 | 3/19/26 | 87.5 1.5 | 1638 | 46.0 1.1 | 0558 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 3/19/26 | 88.9 0.2 | 1706 | 47.3 0.0 | 0702 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 3/19/26 | 90.8 1.1 | 1722 | 47.2 2.1 | 0628 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 3/19/26 | 89.2 0.4 | 1625 | 49.0 0.2 | 0626 | 55.8 1.2 | 96 0 | 38 6 | 1.9 | 9.0 0.5 | 1509 | S | 191 | 0.00 | 19.35 | 0.159 0.003 | 506 3 | 0 0 |
| Carneros (Saintsbury) | 3/19/26 | 87.1 2.1 | 1720 | 48.0 0.4 | 0657 | 56.3 0.8 | 100 0 | 39 5 | 1.7 | 10.2 1.7 | 1521 | SSE | 166 | 0.00 | 5.62 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 3/19/26 | 87.3 0.5 | 1609 | 49.7 0.4 | 0726 | 56.3 1.8 | - | - | 3.1 | 10.6 3.2 | 1441 | SW | 220 | 0.00 | 18.31 | 0.152 0.007 | 462 3 | 0 0 |
| Suscol Mtn (Ranch 93) | 3/19/26 | 86.4 1.0 | 1630 | 61.3 4.3 | 0358 | 55.7 4.3 | 72 10 | 39 10 | 2.5 | 13.4 2.9 | 1359 | W | 280 | 0.00 | 13.80 | - | - | 100 20 |
| Suscol Upper (Ranch 92) | 3/19/26 | 88.9 0.2 | 1637 | 58.9 5.6 | 0523 | 57.0 4.0 | 81 17 | 40 11 | 0.3 | 9.3 2.2 | 1414 | SW | 226 | 0.00 | 18.16 | - | - | 100 20 |
| Stanly (Ranch 45) | 3/19/26 | 90.4 0.5 | 1736 | 46.4 0.6 | 0648 | 55.9 1.1 | 100 0 | 36 5 | 1.9 | 8.9 0.9 | 1458 | WSW | 251 | 0.00 | 19.65 | 0.174 0.005 | 537 3 | 0 0 |
| Carneros Upper (Ranch 81) | 3/19/26 | 89.0 0.3 | 1552 | 55.5 3.6 | 0627 | 55.2 1.0 | - | - | 3.0 | 10.1 2.6 | 1421 | WSW | 237 | - | - | - | - | 70 20 |
| Carneros (Mitsuko) | 3/19/26 | 89.5 0.7 | 1632 | 43.5 0.8 | 0608 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 3/19/26 | 91.1 1.3 | 1528 | 47.9 0.2 | 0652 | 53.0 1.1 | 100 0 | 0 0 | 0.9 | 6.9 0.1 | 1611 | SSE | 166 | 0.00 | 16.94 | 0.126 0.002 | 390 2 | 0 0 |
| Carneros (Milton Rd) | 3/19/26 | 88.9 0.5 | 1641 | 48.0 0.4 | 0605 | 55.9 1.2 | 95 1 | 38 5 | - | - | - | - | 0.00 | 17.00 | - | - | 0 0 |
| Max | 92.3 | - | 66.0 | - | 59.7 | 100 | 46 | 3.1 | 13.4 | - | - | 0.00 | 29.29 | 0.234 | 852 | - | |
| Avg | - | - | - | - | 55.8 | - | - | 1.8 | - | - | - | - | - | - | - | - | |
| Min | 85.9 | - | 43.5 | - | 49.2 | 52 | 0 | 0.1 | 6.9 | - | - | 0.00 | 5.62 | 0.081 | 233 | - |