| 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 | 3/28/26 | 81.2 0.8 | 1552 | 44.1 2.2 | 0623 | - | - | - | - | - | - | - | 0.00 | 42.33 | - | - | 100 0 |
| Pope Valley (Weeks Lake) | 3/28/26 | 83.8 0.3 | 1626 | 35.0 1.8 | 0715 | 42.7 4.4 | 100 5 | 18 5 | 1.2 | 9.9 1.8 | 1522 | ESE | 116 | 0.00 | 21.60 | 0.151 0.007 | 482 42 | 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 | 3/28/26 | 87.5 2.9 | 1617 | 41.8 3.4 | 0718 | 47.0 5.0 | 98 7 | 20 1 | 2.3 | 14.2 0.7 | 1428 | E | 88 | 0.00 | 19.16 | 0.180 0.007 | 544 42 | 90 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 | 3/28/26 | 86.9 0.6 | 1720 | 38.5 2.1 | 0621 | 47.0 4.8 | 99 9 | 21 3 | - | - | - | - | - | - | - | - | 90 10 |
| Dollarhide 18A Remote | 3/28/26 | 87.9 1.5 | 1638 | 34.4 0.2 | 0658 | 43.6 3.5 | 99 3 | 19 2 | - | - | - | - | - | - | - | - | 90 10 |
| Angwin | 3/28/26 | 78.4 0.2 | 1626 | 60.0 0.5 | 0713 | 36.3 11.7 | 49 14 | 18 4 | 3.2 | 11.2 8.6 | 1020 | NNW | 333 | 0.00 | 38.60 | 0.064 0.050 | 0 0 | 90 20 |
| Lower Angwin (Pioneer) | 3/28/26 | 80.3 1.0 | 1613 | 45.8 2.2 | 0656 | - | - | - | 2.0 | 10.5 4.1 | 1024 | NNE | 30 | - | - | - | - | 100 0 |
| Deer Park | 3/28/26 | 85.2 1.9 | 1626 | 50.5 7.8 | 0740 | 43.2 13.2 | 64 22 | 22 10 | 2.2 | 9.9 4.0 | 1338 | SSE | 166 | 0.00 | 23.61 | 0.128 0.017 | 344 17 | 100 10 |
| Lower Chiles Valley (Brown) | 3/28/26 | 85.1 1.8 | 1642 | 37.0 5.8 | 0725 | 43.3 7.5 | 98 10 | 16 2 | 1.3 | 11.0 0.4 | 1616 | NE | 47 | 0.00 | 20.67 | 0.165 0.001 | 520 44 | 100 0 |
| Moss Creek Vineyard/Reservior | 3/28/26 | 84.2 0.8 | 1606 | 41.0 5.8 | 0726 | 45.0 6.5 | 97 10 | 19 7 | - | - | - | - | 0.00 | 23.37 | - | - | 80 20 |
| Max | 87.9 | - | 60.0 | - | 47.0 | 100 | 22 | 3.2 | 14.2 | - | - | 0.00 | 42.33 | 0.180 | 544 | - | |
| Avg | - | - | - | - | 43.5 | - | - | 2.0 | - | - | - | - | - | - | - | - | |
| Min | 78.4 | - | 34.4 | - | 36.3 | 49 | 16 | 1.2 | 9.9 | - | - | 0.00 | 19.16 | 0.064 | 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 | 3/28/26 | 88.9 3.2 | 1328 | 41.6 4.9 | 0704 | 46.8 5.8 | 92 14 | 23 7 | - | - | - | - | 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) | 3/28/26 | 84.4 0.8 | 1609 | 52.6 8.2 | 0713 | 41.2 13.2 | 53 18 | 22 9 | - | - | - | - | 0.00 | 26.40 | - | - | 100 0 |
| Diamond Mtn (McEachran) | 3/28/26 | 86.8 0.5 | 1636 | 48.0 4.7 | 0653 | 43.5 9.5 | 71 8 | 21 8 | - | - | - | - | - | - | - | - | 80 10 |
| St. Helena-North | 3/28/26 | 87.4 1.5 | 1650 | 41.9 3.9 | 0708 | 41.8 8.4 | 85 14 | 18 9 | 2.4 | 11.0 0.0 | 1331 | SE | 126 | 0.00 | 26.66 | 0.144 0.005 | 406 14 | 80 10 |
| St. Helena (NVV Office) | 3/28/26 | 88.5 0.8 | 1529 | 43.5 2.0 | 0651 | - | - | - | 1.1 | 9.0 1.5 | 1711 | ENE | 77 | 0.00 | 23.51 | - | - | 80 10 |
| Tiara Fria (East St. Helena) | 3/28/26 | 85.8 1.4 | 1613 | 41.6 2.2 | 0648 | 45.2 7.7 | 91 5 | 22 10 | 2.1 | 10.0 0.8 | 1708 | SE | 126 | 0.00 | 21.80 | - | - | 80 10 |
| Rutherford Hill Estate | 3/28/26 | 86.7 2.5 | 1551 | 49.1 4.5 | 0702 | 45.4 10.6 | 71 14 | 25 13 | 1.6 | 8.6 4.6 | 1431 | SSW | 197 | 0.00 | 21.35 | 0.140 0.005 | 434 17 | 100 10 |
| Rutherford-North (Mee Ln) | 3/28/26 | 84.6 3.8 | 1542 | 39.5 0.9 | 0616 | 46.7 6.2 | 93 2 | 27 14 | 2.3 | 12.5 0.4 | 1642 | SE | 131 | 0.00 | 20.49 | 0.152 0.007 | 453 35 | 100 10 |
| Rutherford (STS) | 3/28/26 | 87.1 3.2 | 1546 | 40.6 0.8 | 0551 | 49.0 6.6 | 92 1 | 28 12 | 2.1 | 11.5 0.5 | 1657 | ESE | 105 | 0.00 | 21.65 | 0.171 0.005 | 537 44 | 80 10 |
| Oakville-NE (Ranch 88) | 3/28/26 | 84.5 4.3 | 1531 | 38.8 0.4 | 0714 | 42.8 7.3 | 86 3 | 23 13 | 1.8 | 11.2 1.3 | 1640 | S | 176 | 0.00 | 21.19 | 0.169 0.001 | 515 47 | 0 0 |
| OV561-East | 3/28/26 | 86.0 1.2 | 1646 | 40.2 1.2 | 0729 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| Oakville | 3/28/26 | 83.3 3.7 | 1613 | 39.2 0.6 | 0714 | 45.8 6.8 | 96 3 | 26 15 | 2.4 | 11.2 1.9 | 1708 | ESE | 123 | 0.00 | 21.73 | 0.168 0.002 | 516 36 | 100 10 |
| OV518-West | 3/28/26 | 83.5 1.8 | 1533 | 40.5 0.5 | 0719 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| To Kalon Remote (TKKE) | 3/28/26 | 86.8 1.9 | 1523 | 38.1 1.5 | 0704 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| To Kalon | 3/28/26 | 84.3 3.7 | 1520 | 40.2 0.2 | 0704 | 45.9 8.3 | 93 3 | 26 13 | 2.1 | 11.0 1.4 | 1610 | SE | 141 | 0.00 | 23.62 | 0.157 0.003 | 477 40 | 100 10 |
| To Kalon Remote (TKN5) | 3/28/26 | 86.2 2.6 | 1552 | 38.2 1.8 | 0654 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| Yountville (Ranch 67) | 3/28/26 | 81.8 4.1 | 1554 | 39.0 1.1 | 0705 | 45.8 5.6 | 94 0 | 26 14 | 2.3 | 11.9 1.8 | 1614 | SSE | 147 | 0.00 | 19.96 | 0.167 0.004 | 549 24 | 100 0 |
| Stags Leap Dist (Silverado Vineyards) | 3/28/26 | 81.2 4.0 | 1622 | 39.0 1.0 | 0610 | 45.6 5.3 | 96 1 | 28 15 | 1.9 | 13.5 1.1 | 1612 | SSE | 157 | 0.00 | 23.91 | 0.166 0.015 | 511 44 | 100 0 |
| Borreo (Soda Canyon) | 3/28/26 | 80.1 2.8 | 1553 | 41.5 3.3 | 0650 | 44.7 5.0 | 87 9 | 28 15 | 1.8 | 8.0 3.0 | 1610 | SSE | 164 | 0.00 | 23.83 | 0.157 0.003 | 532 24 | 100 20 |
| Wappo Hill Floor | 3/28/26 | 84.0 2.2 | 1620 | 36.7 2.0 | 0702 | 45.8 4.3 | 100 0 | 27 13 | 1.8 | 11.1 1.5 | 1548 | SE | 127 | 0.00 | 23.28 | 0.160 0.004 | 487 8 | 100 10 |
| Stags Leap Dist (Chimney Rock) | 3/28/26 | 82.3 2.6 | 1638 | 39.0 0.9 | 0704 | 47.1 4.6 | 99 0 | 32 15 | 1.9 | 10.0 3.6 | 1610 | S | 174 | 0.00 | 22.51 | 0.147 0.005 | 460 19 | 100 0 |
| Yountville-South (Ranch 87) | 3/28/26 | 82.8 2.3 | 1621 | 39.7 1.6 | 0702 | 47.1 5.0 | 100 5 | 30 15 | 1.5 | 10.5 1.0 | 1656 | SSE | 165 | 0.00 | 23.66 | 0.135 0.022 | 403 45 | 50 10 |
| Yountville-SE (Ranch 85) | 3/28/26 | 82.6 3.6 | 1526 | 40.8 0.2 | 0630 | 47.1 4.5 | 96 0 | 28 15 | 1.3 | 9.8 0.6 | 1531 | SE | 130 | 0.00 | 22.19 | - | 0 0 | 100 0 |
| Oak Knoll-East (Ranch 53) | 3/28/26 | 83.3 4.7 | 1556 | 40.8 1.1 | 0708 | 44.7 6.1 | 89 2 | 27 16 | 1.3 | 9.3 1.7 | 1647 | SSE | 150 | 0.00 | 20.46 | 0.149 0.005 | 470 23 | 50 10 |
| Napa-NW (Ranch 54) | 3/28/26 | 83.1 2.6 | 1624 | 42.9 0.4 | 0702 | 45.5 6.3 | 85 2 | 28 17 | 1.6 | 10.3 1.5 | 1602 | SSE | 162 | 0.00 | 22.69 | - | 0 0 | 100 0 |
| Napa-North (Ranch 29) | 3/28/26 | 82.1 2.7 | 1733 | 42.8 0.7 | 0644 | 47.2 4.9 | 100 0 | 29 14 | 1.5 | 10.5 3.6 | 1608 | S | 189 | 0.00 | 20.32 | 0.109 0.011 | 308 6 | 100 0 |
| Max | 88.9 | - | 52.6 | - | 49.0 | 100 | 32 | 2.4 | 13.5 | - | - | 0.00 | 27.89 | 0.171 | 549 | - | |
| Avg | - | - | - | - | 45.5 | - | - | 1.8 | - | - | - | - | - | - | - | - | |
| Min | 80.1 | - | 36.7 | - | 41.2 | 53 | 18 | 1.1 | 8.0 | - | - | 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 | 3/28/26 | 80.4 0.4 | 1446 | 62.1 1.5 | 0405 | 40.8 11.7 | 55 13 | 24 10 | 1.3 | 7.9 1.8 | 1241 | ESE | 105 | 0.00 | 29.29 | 0.141 0.002 | 449 51 | 100 0 |
| Mount George (Napa East) | 3/28/26 | 80.5 1.9 | 1717 | 40.9 2.0 | 0720 | 45.2 4.5 | 92 3 | 30 15 | 1.0 | 8.1 1.7 | 1306 | W | 271 | 0.00 | 11.88 | 0.146 0.002 | 508 24 | 100 0 |
| Napa-East (Palmaz 300') | 3/28/26 | 82.1 3.0 | 1549 | 43.2 2.1 | 0712 | 46.2 4.9 | 93 9 | 28 15 | 1.9 | 9.6 1.2 | 2025 | NE | 50 | 0.00 | 18.31 | 0.146 0.001 | 470 27 | 100 0 |
| Napa-East (Palmaz 1200') | 3/27/26 | 80.3 | 1451 | 48.5 | 0603 | 39.9 | 65 | 13 | 2.6 | 13.8 | 1232 | ENE | 76 | - | - | 0.153 | 431 | 100 |
| Napa-East (Palmaz 1400') | 3/28/26 | 79.0 1.0 | 1329 | 45.7 6.7 | 0628 | 44.0 12.3 | 82 22 | 28 13 | 2.1 | 10.0 6.6 | 1340 | SW | 221 | 0.00 | 24.80 | 0.155 0.021 | 504 25 | 100 0 |
| Wooden Valley | 3/28/26 | 82.4 0.4 | 1612 | 40.3 1.2 | 0658 | 46.8 2.5 | 97 4 | 30 14 | 1.3 | 8.4 3.3 | 1728 | WSW | 245 | 0.00 | 24.00 | 0.155 0.030 | 517 77 | 100 0 |
| Napa-West Upper (Truchard) | 3/28/26 | 82.9 1.7 | 1637 | 49.1 2.0 | 0644 | 45.8 4.1 | 78 1 | 29 16 | 2.2 | 11.1 2.9 | 1253 | SSW | 202 | 0.00 | 20.16 | 0.164 0.008 | 514 19 | 100 0 |
| Napa-West Lower (Truchard) | 3/28/26 | 85.1 2.8 | 1633 | 37.1 2.6 | 0707 | 45.9 3.3 | 100 0 | 29 16 | - | - | - | - | - | - | - | - | 100 10 |
| Napa-South (Toyon Farms) | 3/28/26 | 81.8 2.0 | 1636 | 45.8 1.8 | 0642 | 49.8 2.4 | 93 3 | 35 10 | 2.3 | 9.5 2.0 | 1140 | S | 181 | 0.00 | 13.94 | 0.083 0.016 | 236 20 | 100 0 |
| Toyon Remote 1 | 3/28/26 | 81.3 4.1 | 1509 | 36.8 2.6 | 0618 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 3/28/26 | 81.0 2.1 | 1639 | 39.0 3.0 | 0701 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 3/28/26 | 82.6 3.9 | 1601 | 39.7 1.8 | 0704 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 3/28/26 | 82.1 1.5 | 1637 | 43.6 0.5 | 0629 | 46.5 4.9 | 91 0 | 30 17 | 2.4 | 9.9 0.2 | 1348 | SSE | 148 | 0.00 | 19.35 | 0.155 0.006 | 525 11 | 100 0 |
| Carneros (Saintsbury) | 3/28/26 | 81.1 1.7 | 1613 | 42.4 1.4 | 0715 | 46.4 3.3 | 90 1 | 31 9 | 2.0 | 9.1 4.7 | 1321 | SSE | 159 | 0.00 | 5.62 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 3/28/26 | 80.7 2.1 | 1643 | 42.8 1.4 | 0706 | 45.3 5.4 | - | - | 3.6 | 12.1 0.9 | 1232 | SSW | 203 | 0.00 | 18.31 | 0.152 0.013 | 477 19 | 100 0 |
| Suscol Mtn (Ranch 93) | 3/28/26 | 78.9 3.4 | 1646 | 53.1 6.3 | 0716 | 43.2 12.0 | 63 18 | 29 15 | 2.6 | 11.0 3.1 | 1416 | WNW | 303 | 0.00 | 13.80 | - | - | 100 0 |
| Suscol Upper (Ranch 92) | 3/28/26 | 79.3 4.1 | 1716 | 52.0 5.9 | 0707 | 44.2 11.2 | 80 35 | 28 14 | 0.4 | 9.6 2.2 | 1327 | SSE | 158 | 0.00 | 18.16 | - | - | 100 0 |
| Stanly (Ranch 45) | 3/28/26 | 80.8 2.7 | 1857 | 42.4 0.6 | 0713 | 45.9 2.8 | 91 4 | 20 0 | 3.0 | 10.6 4.0 | 1230 | S | 179 | 0.00 | 19.65 | 0.169 0.012 | 550 27 | 100 0 |
| Carneros Upper (Ranch 81) | 3/28/26 | 82.0 1.1 | 1633 | 51.2 1.7 | 0649 | 44.7 5.0 | - | - | 3.4 | 11.5 7.5 | 1938 | W | 262 | - | - | - | - | 100 0 |
| Carneros (Mitsuko) | 3/28/26 | 80.9 1.2 | 1621 | 37.4 1.4 | 0658 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 3/28/26 | 85.5 2.0 | 1628 | 41.6 1.5 | 0628 | 45.7 2.4 | 100 0 | 0 24 | 1.0 | 8.0 2.6 | 1148 | S | 170 | 0.00 | 16.94 | 0.122 0.006 | 414 10 | 0 0 |
| Carneros (Milton Rd) | 3/28/26 | 80.8 1.8 | 1629 | 39.9 0.5 | 0654 | 44.6 2.4 | 92 1 | 21 0 | - | - | - | - | 0.00 | 17.00 | - | - | 60 60 |
| Max | 85.5 | - | 62.1 | - | 49.8 | 100 | 35 | 3.6 | 12.1 | - | - | 0.00 | 29.29 | 0.169 | 550 | - | |
| Avg | - | - | - | - | 45.4 | - | - | 2.0 | - | - | - | - | - | - | - | - | |
| Min | 78.9 | - | 36.8 | - | 40.8 | 55 | 0 | 0.4 | 7.9 | - | - | 0.00 | 5.62 | 0.083 | 236 | - |