| 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 | 3/24/26 | 80.6 3.3 | 1529 | 43.7 4.1 | 0522 | - | - | - | - | - | - | - | 0.00 | 42.33 | - | - | 100 0 |
| Pope Valley (Weeks Lake) | 3/24/26 | 85.3 2.2 | 1541 | 34.9 4.1 | 0701 | 41.3 0.6 | 100 0 | 16 3 | 1.4 | 10.5 5.5 | 1702 | WSW | 244 | 0.00 | 21.60 | 0.154 0.002 | 488 54 | 100 20 |
| 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 | 3/24/26 | 84.9 3.3 | 1546 | 41.2 5.3 | 0725 | 46.2 0.7 | 97 0 | 23 6 | 2.7 | 15.3 4.3 | 1637 | SW | 217 | 0.00 | 19.16 | 0.188 0.009 | 554 55 | 100 20 |
| 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 | 3/24/26 | 86.8 3.1 | 1602 | 38.6 4.5 | 0708 | 45.0 0.8 | 98 1 | 21 5 | - | - | - | - | - | - | - | - | 60 10 |
| Dollarhide 18A Remote | 3/24/26 | 85.7 1.9 | 1552 | 33.0 6.3 | 0656 | 42.8 1.2 | 100 0 | 20 5 | - | - | - | - | - | - | - | - | 90 20 |
| Angwin | 3/24/26 | 77.4 3.4 | 1543 | 59.7 1.6 | 0349 | 30.6 2.6 | 38 0 | 16 11 | 2.7 | 13.8 5.5 | 1457 | SSE | 148 | 0.00 | 38.60 | 0.057 0.025 | 0 0 | 100 10 |
| Lower Angwin (Pioneer) | 3/24/26 | 78.7 2.9 | 1553 | 44.0 1.7 | 0724 | - | - | - | 2.0 | 13.3 2.9 | 1449 | WSW | 244 | - | - | - | - | 100 10 |
| Deer Park | 3/24/26 | 84.2 1.9 | 1524 | 51.9 2.1 | 0536 | 36.7 4.5 | 52 30 | 17 1 | 4.3 | 14.2 0.2 | 1408 | NW | 324 | 0.00 | 23.61 | 0.169 0.031 | 366 36 | 90 20 |
| Lower Chiles Valley (Brown) | 3/24/26 | 83.4 3.0 | 1615 | 36.4 8.5 | 0659 | 40.9 1.8 | 100 6 | 18 5 | 1.7 | 14.9 1.4 | 1420 | WNW | 302 | 0.00 | 20.67 | 0.170 0.020 | 531 55 | 100 0 |
| Moss Creek Vineyard/Reservior | 3/24/26 | 88.3 4.1 | 1525 | 41.7 5.4 | 0727 | 42.4 0.6 | 94 1 | 14 2 | - | - | - | - | 0.00 | 23.37 | - | - | 0 0 |
| Max | 88.3 | - | 59.7 | - | 46.2 | 100 | 23 | 4.3 | 15.3 | - | - | 0.00 | 42.33 | 0.188 | 554 | - | |
| Avg | - | - | - | - | 40.7 | - | - | 2.5 | - | - | - | - | - | - | - | - | |
| Min | 77.4 | - | 33.0 | - | 30.6 | 38 | 14 | 1.4 | 10.5 | - | - | 0.00 | 19.16 | 0.057 | 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 | 3/24/26 | 88.1 3.9 | 1511 | 42.0 4.2 | 0722 | 42.8 1.9 | 89 6 | 21 1 | - | - | - | - | 0.00 | 27.89 | - | - | 20 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) | 3/24/26 | 82.8 1.3 | 1450 | 52.0 1.6 | 0714 | 37.8 2.4 | 51 24 | 21 1 | - | - | - | - | 0.00 | 26.40 | - | - | 100 0 |
| Diamond Mtn (McEachran) | 3/24/26 | 83.3 2.4 | 1634 | 51.4 3.1 | 0706 | 37.8 3.3 | 62 20 | 18 1 | - | - | - | - | - | - | - | - | 100 20 |
| St. Helena-North | 3/24/26 | 88.1 3.6 | 1508 | 43.3 2.2 | 0638 | 37.2 3.1 | 78 10 | 12 0 | 1.9 | 10.8 0.7 | 1401 | NNW | 338 | 0.00 | 26.66 | 0.145 0.019 | 421 42 | 60 10 |
| St. Helena (NVV Office) | 3/24/26 | 88.6 3.8 | 1558 | 44.2 2.4 | 0640 | - | - | - | 1.5 | 9.1 1.8 | 2246 | WNW | 282 | 0.00 | 23.51 | - | - | 60 10 |
| Tiara Fria (East St. Helena) | 3/24/26 | 87.4 3.4 | 1601 | 42.5 2.8 | 0711 | 40.7 3.3 | 87 9 | 17 5 | 2.5 | 12.4 1.5 | 1649 | SW | 224 | 0.00 | 21.80 | - | - | 60 10 |
| Rutherford Hill Estate | 3/24/26 | 88.9 4.6 | 1605 | 50.6 1.7 | 0630 | 40.1 4.0 | 62 32 | 17 4 | 1.6 | 10.5 0.4 | 2224 | NW | 321 | 0.00 | 21.35 | 0.146 0.017 | 446 30 | 60 10 |
| Rutherford-North (Mee Ln) | 3/24/26 | 88.8 4.3 | 1559 | 41.9 1.0 | 0701 | 42.1 2.1 | 88 8 | 14 7 | 2.0 | 10.5 1.8 | 1659 | WNW | 289 | 0.00 | 20.49 | 0.153 0.017 | 461 35 | 60 10 |
| Rutherford (STS) | 3/24/26 | 87.9 4.6 | 1617 | 43.0 0.3 | 0641 | 45.7 1.2 | 89 2 | 25 2 | 1.8 | 9.9 0.1 | 1724 | WSW | 247 | 0.00 | 21.65 | 0.174 0.022 | 547 37 | 60 10 |
| Oakville-NE (Ranch 88) | 3/24/26 | 86.9 3.6 | 1723 | 40.5 1.9 | 0701 | 39.7 2.0 | 86 11 | 17 1 | 1.6 | 15.7 3.7 | 1711 | W | 270 | 0.00 | 21.19 | 0.168 0.014 | 521 41 | 0 0 |
| OV561-East | 3/24/26 | 89.0 2.0 | 1616 | 42.3 0.6 | 0738 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| Oakville | 3/24/26 | 85.3 3.8 | 1459 | 40.4 2.2 | 0705 | 41.6 1.9 | 92 6 | 22 2 | 2.2 | 10.9 1.0 | 1539 | ESE | 114 | 0.00 | 21.73 | 0.171 0.013 | 528 35 | 90 20 |
| OV518-West | 3/24/26 | 84.7 3.0 | 1739 | 42.8 0.2 | 0639 | - | - | - | - | - | - | - | - | - | - | - | 90 20 |
| To Kalon Remote (TKKE) | 3/24/26 | 87.9 3.6 | 1529 | 42.2 0.1 | 0501 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| To Kalon | 3/24/26 | 86.4 3.3 | 1625 | 42.6 0.6 | 0634 | 41.1 3.4 | 85 14 | 23 1 | 2.3 | 10.2 1.0 | 1521 | SSE | 167 | 0.00 | 23.62 | 0.162 0.016 | 488 36 | 60 10 |
| To Kalon Remote (TKN5) | 3/24/26 | 87.7 3.6 | 1545 | 40.3 2.5 | 0638 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| Yountville (Ranch 67) | 3/24/26 | 84.5 4.6 | 1525 | 41.7 1.0 | 0502 | 42.5 0.6 | 92 4 | 23 3 | 2.2 | 10.8 1.8 | 1553 | SSE | 150 | 0.00 | 19.96 | 0.170 0.011 | 554 31 | 100 0 |
| Stags Leap Dist (Silverado Vineyards) | 3/24/26 | 83.8 3.5 | 1542 | 41.5 0.6 | 0440 | 41.3 0.8 | 91 6 | 22 5 | 1.7 | 11.4 1.0 | 1652 | SSE | 163 | 0.00 | 23.91 | 0.168 0.016 | 517 42 | 100 10 |
| Borreo (Soda Canyon) | 3/24/26 | 82.3 4.0 | 1435 | 41.8 1.5 | 0657 | 41.3 0.8 | 86 10 | 23 5 | 1.9 | 10.0 0.5 | 1547 | SSW | 204 | 0.00 | 23.83 | 0.164 0.017 | 541 35 | 0 0 |
| Wappo Hill Floor | 3/24/26 | 86.3 4.0 | 1529 | 39.0 2.0 | 0625 | 41.3 1.0 | 100 0 | 22 4 | - | 10.8 3.7 | 1629 | SE | 143 | 0.00 | 23.28 | 0.169 0.007 | 502 30 | 60 10 |
| Stags Leap Dist (Chimney Rock) | 3/24/26 | 84.7 3.4 | 1532 | 40.1 2.9 | 0726 | 42.4 1.5 | 96 4 | 26 5 | 2.0 | 18.0 6.1 | 1535 | SE | 139 | 0.00 | 22.51 | 0.155 0.006 | 470 30 | 100 20 |
| Yountville-South (Ranch 87) | 3/24/26 | 85.0 2.9 | 1450 | 41.6 1.6 | 0553 | 43.1 1.1 | 94 6 | 23 4 | 1.6 | 10.6 1.6 | 1648 | ESE | 102 | 0.00 | 23.66 | 0.143 0.005 | 416 3 | 60 10 |
| Yountville-SE (Ranch 85) | 3/24/26 | 85.9 4.3 | 1531 | 41.4 2.4 | 0714 | 42.4 0.8 | 94 5 | 22 4 | 1.7 | 10.5 0.4 | 1330 | SSE | 151 | 0.00 | 22.19 | - | 0 0 | 100 20 |
| Oak Knoll-East (Ranch 53) | 3/24/26 | 84.8 2.4 | 1459 | 41.6 2.8 | 0659 | 40.0 2.0 | 88 7 | 20 5 | 1.5 | 10.4 1.3 | 1556 | SSE | 149 | 0.00 | 20.46 | 0.158 0.011 | 480 22 | 60 10 |
| Napa-NW (Ranch 54) | 3/24/26 | 84.7 2.7 | 1634 | 43.8 0.9 | 0701 | 42.0 1.2 | 82 18 | 21 6 | 1.5 | 10.5 1.4 | 1546 | SE | 139 | 0.00 | 22.69 | - | 0 0 | 100 10 |
| Napa-North (Ranch 29) | 3/24/26 | 84.7 3.8 | 1448 | 42.1 3.5 | 0720 | 41.8 1.3 | 100 0 | 20 5 | 1.5 | 12.2 1.5 | 1506 | SSW | 200 | 0.00 | 20.32 | 0.115 0.004 | 315 8 | 100 20 |
| Max | 89.0 | - | 52.0 | - | 45.7 | 100 | 26 | 2.5 | 18.0 | - | - | 0.00 | 27.89 | 0.174 | 554 | - | |
| Avg | - | - | - | - | 41.2 | - | - | 1.8 | - | - | - | - | - | - | - | - | |
| Min | 82.3 | - | 39.0 | - | 37.2 | 51 | 12 | 1.5 | 9.1 | - | - | 0.00 | 19.96 | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mt. Veeder | 3/24/26 | 79.9 3.0 | 1449 | 58.7 3.2 | 0631 | 32.4 2.2 | 43 20 | 13 1 | 1.5 | 7.9 0.4 | 1429 | N | 350 | 0.00 | 29.29 | 0.170 0.005 | 539 73 | 100 10 |
| Mount George (Napa East) | 3/24/26 | 82.1 1.1 | 1505 | 44.9 0.3 | 0425 | 41.7 1.8 | 96 1 | 21 3 | 1.2 | 10.1 0.4 | 1532 | WSW | 243 | 0.00 | 11.88 | 0.159 0.013 | 532 30 | 80 20 |
| Napa-East (Palmaz 300') | 3/24/26 | 84.5 3.8 | 1505 | 43.9 1.5 | 0721 | 41.4 1.5 | 88 8 | 21 4 | 2.1 | 12.9 2.5 | 1521 | WSW | 243 | 0.00 | 18.31 | 0.154 0.013 | 484 29 | 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') | 3/24/26 | 79.2 4.6 | 1316 | 48.8 3.2 | 0713 | 37.1 0.3 | 60 12 | 19 0 | 3.1 | 12.8 1.3 | 2317 | NNW | 335 | 0.00 | 24.80 | 0.174 0.011 | 521 26 | 100 10 |
| Wooden Valley | 3/24/26 | 80.8 3.0 | 1525 | 41.6 4.2 | 0725 | 43.5 0.3 | 92 2 | 23 4 | 2.3 | 14.0 0.7 | 1334 | SW | 215 | 0.00 | 24.00 | 0.170 0.017 | 530 25 | 100 0 |
| Napa-West Upper (Truchard) | 3/24/26 | 84.2 3.6 | 1444 | 49.0 2.2 | 0722 | 39.1 3.5 | 67 33 | 20 5 | 2.5 | 14.1 5.7 | 1542 | SW | 220 | 0.00 | 20.16 | 0.179 0.010 | 529 29 | 80 20 |
| Napa-West Lower (Truchard) | 3/24/26 | 85.9 2.9 | 1418 | 37.5 2.8 | 0645 | 41.0 1.1 | 100 0 | 20 4 | - | - | - | - | - | - | - | - | 70 10 |
| Napa-South (Toyon Farms) | 3/24/26 | 83.4 3.0 | 1435 | 46.2 0.7 | 0653 | 44.0 1.8 | 88 12 | 26 6 | 3.0 | 15.5 1.5 | 1700 | WSW | 257 | 0.00 | 13.94 | 0.103 0.003 | 251 10 | 80 20 |
| Toyon Remote 1 | 3/24/26 | 84.3 2.9 | 1449 | 36.4 5.0 | 0710 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 3/24/26 | 82.6 2.6 | 1428 | 39.5 3.2 | 0719 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 3/24/26 | 85.3 2.5 | 1550 | 39.9 3.2 | 0708 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 3/24/26 | 82.6 2.9 | 1438 | 44.6 0.5 | 0641 | 39.4 1.7 | 88 8 | 20 6 | 2.7 | 14.8 0.7 | 1651 | SW | 223 | 0.00 | 19.35 | 0.176 0.015 | 541 26 | 80 20 |
| Carneros (Saintsbury) | 3/24/26 | 82.3 3.1 | 1432 | 43.3 0.2 | 0701 | 39.9 2.4 | 85 15 | 20 5 | 3.4 | 17.6 0.8 | 1638 | WSW | 250 | 0.00 | 5.62 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 3/24/26 | 82.9 2.4 | 1440 | 41.8 4.5 | 0704 | 37.8 4.1 | - | - | 4.1 | 14.9 2.1 | 1707 | WSW | 239 | 0.00 | 18.31 | 0.172 0.015 | 492 26 | 0 0 |
| Suscol Mtn (Ranch 93) | 3/24/26 | 80.3 3.6 | 1509 | 55.0 5.2 | 0728 | 34.9 4.0 | 46 39 | 20 5 | 5.1 | 17.8 3.9 | 1423 | NW | 305 | 0.00 | 13.80 | - | - | 100 0 |
| Suscol Upper (Ranch 92) | 3/24/26 | 79.8 2.9 | 1453 | 54.7 5.6 | 0057 | 35.9 4.6 | 50 39 | 20 5 | 2.0 | 15.0 1.0 | 1512 | WSW | 242 | 0.00 | 18.16 | - | - | 100 0 |
| Stanly (Ranch 45) | 3/24/26 | 83.6 2.3 | 1442 | 41.1 2.4 | 0531 | 39.4 3.0 | 95 1 | 19 5 | 3.9 | 19.5 2.1 | 1851 | W | 278 | 0.00 | 19.65 | 0.207 0.020 | 574 26 | 0 0 |
| Carneros Upper (Ranch 81) | 3/24/26 | 81.3 3.1 | 1423 | 51.2 2.8 | 0748 | 34.6 4.3 | - | - | 6.9 | 25.0 3.1 | 1840 | W | 273 | - | - | - | - | 100 0 |
| Carneros (Mitsuko) | 3/24/26 | 81.4 2.6 | 1426 | 37.3 3.4 | 0721 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 3/24/26 | 87.7 4.6 | 1412 | 41.2 2.8 | 0727 | 38.0 2.8 | 100 0 | 0 0 | - | 13.2 1.3 | 1833 | NW | 307 | 0.00 | 16.94 | 0.133 0.011 | 422 21 | 0 0 |
| Carneros (Milton Rd) | 3/24/26 | 81.8 1.8 | 1433 | 40.8 2.3 | 0713 | 39.2 3.3 | 90 5 | 21 5 | - | - | - | - | 0.00 | 17.00 | - | - | 0 0 |
| Max | 87.7 | - | 58.7 | - | 44.0 | 100 | 26 | 6.9 | 25.0 | - | - | 0.00 | 29.29 | 0.207 | 574 | - | |
| Avg | - | - | - | - | 38.8 | - | - | 3.1 | - | - | - | - | - | - | - | - | |
| Min | 79.2 | - | 36.4 | - | 32.4 | 43 | 0 | 1.2 | 7.9 | - | - | 0.00 | 5.62 | 0.103 | 251 | - |