| 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 | 3/23/26 | 77.3 0.6 | 1330 | 47.8 0.5 | 0042 | - | - | - | - | - | - | - | 0.00 | 42.33 | - | - | 100 10 |
| Pope Valley (Weeks Lake) | 3/23/26 | 83.1 0.9 | 1531 | 39.0 1.6 | 0707 | 41.9 3.0 | 100 0 | 19 1 | 2.2 | 16.0 4.2 | 1611 | WSW | 251 | 0.00 | 21.60 | 0.152 0.002 | 434 22 | 80 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 | 3/23/26 | 81.6 4.0 | 1645 | 46.6 1.1 | 0703 | 46.9 4.0 | 98 1 | 17 11 | 3.5 | 19.6 2.9 | 1538 | SSW | 194 | 0.00 | 19.16 | 0.179 0.002 | 498 19 | 80 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 | 3/23/26 | 83.7 1.8 | 1730 | 43.1 1.4 | 0730 | 45.8 3.1 | 99 0 | 16 10 | - | - | - | - | - | - | - | - | 70 20 |
| Dollarhide 18A Remote | 3/23/26 | 83.8 0.9 | 1741 | 39.2 2.7 | 0654 | 44.0 3.3 | 100 0 | 15 13 | - | - | - | - | - | - | - | - | 70 20 |
| Angwin | 3/23/26 | 73.9 1.6 | 1520 | 58.1 2.2 | 2324 | 27.9 10.3 | 38 9 | 6 9 | 4.4 | 19.3 4.1 | 0807 | NW | 306 | 0.00 | 38.60 | 0.082 0.002 | 0 0 | 90 10 |
| Lower Angwin (Pioneer) | 3/23/26 | 75.8 1.4 | 1624 | 45.7 1.2 | 0543 | - | - | - | 2.5 | 16.2 2.9 | 1521 | SW | 223 | - | - | - | - | 90 10 |
| Deer Park | 3/23/26 | 82.3 1.3 | 1555 | 49.8 0.9 | 0652 | 41.2 5.4 | 82 2 | 18 5 | 3.7 | 14.0 4.4 | 1621 | WNW | 297 | 0.00 | 23.61 | 0.138 0.017 | 330 14 | 70 20 |
| Lower Chiles Valley (Brown) | 3/23/26 | 80.4 0.5 | 1646 | 44.9 5.9 | 0507 | 42.8 4.1 | 94 6 | 23 5 | 2.6 | 13.6 0.8 | 1600 | WNW | 290 | 0.00 | 20.67 | 0.150 0.005 | 476 11 | 100 10 |
| Moss Creek Vineyard/Reservior | 3/23/26 | 84.2 2.2 | 1442 | 47.1 2.3 | 0710 | 42.9 4.8 | 93 2 | 16 7 | - | - | - | - | 0.00 | 23.37 | - | - | 0 0 |
| Max | 84.2 | - | 58.1 | - | 46.9 | 100 | 23 | 4.4 | 19.6 | - | - | 0.00 | 42.33 | 0.179 | 498 | - | |
| Avg | - | - | - | - | 41.7 | - | - | 3.1 | - | - | - | - | - | - | - | - | |
| Min | 73.9 | - | 39.0 | - | 27.9 | 38 | 6 | 2.2 | 13.6 | - | - | 0.00 | 19.16 | 0.082 | 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 | 3/23/26 | 84.2 2.6 | 1510 | 46.2 3.5 | 0712 | 44.7 3.3 | 95 1 | 20 7 | - | - | - | - | 0.00 | 27.89 | - | - | 30 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) | 3/23/26 | 81.5 1.4 | 1544 | 50.4 2.0 | 0439 | 40.1 4.8 | 75 2 | 20 1 | - | - | - | - | 0.00 | 26.40 | - | - | 100 0 |
| Diamond Mtn (McEachran) | 3/23/26 | 80.9 2.9 | 1516 | 48.3 1.1 | 0705 | 41.1 5.6 | 82 7 | 17 4 | - | - | - | - | - | - | - | - | 80 20 |
| St. Helena-North | 3/23/26 | 84.5 1.3 | 1551 | 45.5 1.3 | 0716 | 40.3 4.9 | 88 0 | 12 7 | 1.8 | 10.1 1.1 | 1456 | SSE | 160 | 0.00 | 26.66 | 0.126 0.001 | 379 4 | 70 20 |
| St. Helena (NVV Office) | 3/23/26 | 84.8 0.8 | 1628 | 46.7 1.7 | 0700 | - | - | - | 1.2 | 10.8 3.7 | 1629 | W | 265 | 0.00 | 23.51 | - | - | 70 20 |
| Tiara Fria (East St. Helena) | 3/23/26 | 84.0 0.8 | 1634 | 45.3 0.5 | 0725 | 44.0 4.2 | 96 3 | 22 11 | 2.3 | 13.8 3.7 | 1648 | WSW | 250 | 0.00 | 21.80 | - | - | 70 20 |
| Rutherford Hill Estate | 3/23/26 | 84.3 0.3 | 1657 | 48.8 0.1 | 0715 | 44.1 4.8 | 94 7 | 21 12 | 1.6 | 11.0 1.3 | 1641 | SSE | 165 | 0.00 | 21.35 | 0.129 0.002 | 417 6 | 70 20 |
| Rutherford-North (Mee Ln) | 3/23/26 | 84.5 0.1 | 1756 | 40.9 0.8 | 0712 | 44.2 4.4 | 96 2 | 21 13 | 1.8 | 12.3 0.0 | 1639 | ESE | 111 | 0.00 | 20.49 | 0.136 0.002 | 426 4 | 70 20 |
| Rutherford (STS) | 3/23/26 | 83.3 0.7 | 1621 | 42.7 0.9 | 0728 | 46.9 3.8 | 91 1 | 27 13 | 1.5 | 10.0 1.2 | 1742 | WSW | 243 | 0.00 | 21.65 | 0.152 0.000 | 510 8 | 70 20 |
| Oakville-NE (Ranch 88) | 3/23/26 | 83.3 0.5 | 1648 | 42.4 1.5 | 0707 | 41.6 5.0 | 97 5 | 18 15 | 1.9 | 12.0 1.1 | 1555 | SSE | 163 | 0.00 | 21.19 | 0.154 0.003 | 480 3 | 0 0 |
| OV561-East | 3/23/26 | 87.0 3.7 | 1634 | 42.9 0.4 | 0715 | - | - | - | - | - | - | - | - | - | - | - | 70 20 |
| Oakville | 3/23/26 | 81.5 0.1 | 1643 | 42.7 0.4 | 0715 | 43.5 4.6 | 98 0 | 20 16 | 2.4 | 11.9 1.2 | 1650 | SW | 231 | 0.00 | 21.73 | 0.158 0.003 | 493 8 | 70 20 |
| OV518-West | 3/23/26 | 81.7 0.1 | 1737 | 43.0 0.4 | 0630 | - | - | - | - | - | - | - | - | - | - | - | 70 20 |
| To Kalon Remote (TKKE) | 3/23/26 | 84.3 0.2 | 1616 | 42.4 1.4 | 0711 | - | - | - | - | - | - | - | - | - | - | - | 70 20 |
| To Kalon | 3/23/26 | 83.1 1.0 | 1611 | 43.2 0.5 | 0730 | 44.5 4.1 | 99 3 | 23 14 | 2.1 | 11.2 1.9 | 1703 | WNW | 295 | 0.00 | 23.62 | 0.146 0.001 | 452 6 | 70 20 |
| To Kalon Remote (TKN5) | 3/23/26 | 84.1 0.1 | 1553 | 42.9 0.0 | 0704 | - | - | - | - | - | - | - | - | - | - | - | 70 20 |
| Yountville (Ranch 67) | 3/23/26 | 79.9 0.4 | 1502 | 42.7 0.8 | 0652 | 43.2 4.9 | 97 1 | 20 18 | 2.2 | 12.6 2.0 | 1528 | E | 87 | 0.00 | 19.96 | 0.159 0.005 | 522 12 | 100 10 |
| Stags Leap Dist (Silverado Vineyards) | 3/23/26 | 80.3 0.6 | 1639 | 42.1 0.1 | 0712 | 42.1 5.8 | 97 0 | 18 20 | 1.8 | 12.4 1.3 | 1428 | SE | 143 | 0.00 | 23.91 | 0.152 0.001 | 475 7 | 90 20 |
| Borreo (Soda Canyon) | 3/23/26 | 78.3 0.3 | 1557 | 43.2 0.1 | 0727 | 42.0 5.7 | 97 0 | 18 20 | 1.8 | 10.6 1.9 | 1624 | SSE | 153 | 0.00 | 23.83 | 0.147 0.004 | 506 7 | 0 0 |
| Wappo Hill Floor | 3/23/26 | 82.3 0.3 | 1515 | 41.0 1.3 | 0706 | 42.4 5.9 | 100 0 | 17 18 | 2.7 | 14.5 2.3 | 1514 | ESE | 106 | 0.00 | 23.28 | 0.162 0.011 | 472 14 | 70 20 |
| Stags Leap Dist (Chimney Rock) | 3/23/26 | 81.3 0.4 | 1520 | 43.0 1.1 | 0709 | 43.9 5.6 | 100 0 | 21 19 | 2.7 | 11.9 0.4 | 1804 | ESE | 103 | 0.00 | 22.51 | 0.149 0.011 | 441 8 | 80 20 |
| Yountville-South (Ranch 87) | 3/23/26 | 82.1 0.7 | 1553 | 43.2 0.5 | 0650 | 44.2 5.5 | 100 0 | 19 20 | 2.0 | 12.1 0.4 | 1659 | E | 93 | 0.00 | 23.66 | 0.138 0.008 | 413 16 | 70 20 |
| Yountville-SE (Ranch 85) | 3/23/26 | 81.6 0.3 | 1530 | 43.8 0.2 | 0712 | 43.2 6.2 | 100 0 | 18 20 | 2.0 | 10.9 1.8 | 1724 | SE | 136 | 0.00 | 22.19 | - | 0 0 | 80 20 |
| Oak Knoll-East (Ranch 53) | 3/23/26 | 82.4 1.1 | 1658 | 44.3 0.2 | 0707 | 42.0 5.7 | 94 2 | 15 19 | 1.6 | 11.7 1.4 | 1515 | SSW | 193 | 0.00 | 20.46 | 0.147 0.006 | 458 10 | 70 20 |
| Napa-NW (Ranch 54) | 3/23/26 | 82.0 1.7 | 1601 | 44.8 0.1 | 0644 | 43.2 4.7 | 100 7 | 15 18 | 1.3 | 11.9 0.4 | 1609 | SW | 214 | 0.00 | 22.69 | - | 0 0 | 90 20 |
| Napa-North (Ranch 29) | 3/23/26 | 80.9 1.1 | 1608 | 45.6 0.9 | 0714 | 43.1 6.3 | 100 0 | 16 22 | 1.6 | 13.7 2.6 | 1555 | SSW | 207 | 0.00 | 20.32 | 0.111 0.012 | 307 16 | 80 20 |
| Max | 87.0 | - | 50.4 | - | 46.9 | 100 | 27 | 2.7 | 14.5 | - | - | 0.00 | 27.89 | 0.162 | 522 | - | |
| Avg | - | - | - | - | 43.1 | - | - | 1.9 | - | - | - | - | - | - | - | - | |
| Min | 78.3 | - | 40.9 | - | 40.1 | 75 | 12 | 1.2 | 10.0 | - | - | 0.00 | 19.96 | 0.111 | 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 | 3/23/26 | 76.9 2.1 | 1433 | 55.5 3.1 | 0445 | 34.6 9.9 | 63 2 | 12 9 | 1.3 | 7.5 0.2 | 1512 | N | 4 | 0.00 | 29.29 | 0.165 0.005 | 612 59 | 90 10 |
| Mount George (Napa East) | 3/23/26 | 83.2 2.5 | 2040 | 44.6 0.2 | 0709 | 43.5 5.5 | 96 2 | 18 19 | 1.2 | 9.7 1.5 | 1535 | SW | 220 | 0.00 | 11.88 | 0.146 0.005 | 503 8 | 60 20 |
| Napa-East (Palmaz 300') | 3/23/26 | 80.7 0.1 | 1531 | 45.3 0.4 | 0624 | 42.9 6.1 | 96 4 | 16 19 | 1.8 | 10.4 1.8 | 1616 | SW | 220 | 0.00 | 18.31 | 0.141 0.009 | 455 10 | 100 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') | 3/23/26 | 74.6 1.7 | 1538 | 52.0 5.9 | 0636 | 37.4 9.4 | 72 18 | 18 15 | 3.5 | 14.1 4.2 | 2230 | WNW | 293 | 0.00 | 24.80 | 0.163 0.017 | 496 9 | 90 10 |
| Wooden Valley | 3/23/26 | 77.8 0.9 | 1537 | 45.8 2.9 | 0727 | 43.2 4.9 | 90 7 | 19 15 | 2.5 | 14.8 2.1 | 1611 | WNW | 286 | 0.00 | 24.00 | 0.153 0.001 | 505 11 | 100 0 |
| Napa-West Upper (Truchard) | 3/23/26 | 80.6 0.8 | 1458 | 46.8 1.8 | 0725 | 42.5 6.7 | 100 0 | 15 23 | 2.5 | 19.8 7.5 | 1647 | WSW | 237 | 0.00 | 20.16 | 0.169 0.015 | 500 10 | 60 60 |
| Napa-West Lower (Truchard) | 3/23/26 | 83.0 1.0 | 1505 | 40.2 0.2 | 0656 | 42.1 5.0 | 100 0 | 16 23 | - | - | - | - | - | - | - | - | 80 20 |
| Napa-South (Toyon Farms) | 3/23/26 | 80.4 1.3 | 1536 | 47.0 0.1 | 0711 | 45.8 5.1 | 100 0 | 20 27 | 3.0 | 17.0 7.2 | 1655 | WSW | 238 | 0.00 | 13.94 | 0.100 0.020 | 240 5 | 60 20 |
| Toyon Remote 1 | 3/23/26 | 81.4 2.7 | 1431 | 41.4 1.1 | 0311 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 3/23/26 | 80.0 2.4 | 1458 | 42.7 0.4 | 0631 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 3/23/26 | 82.8 3.5 | 1448 | 43.2 0.5 | 0603 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 3/23/26 | 79.7 0.9 | 1433 | 44.1 1.7 | 0543 | 41.1 6.7 | 96 2 | 14 24 | 2.4 | 15.5 4.8 | 1649 | WSW | 250 | 0.00 | 19.35 | 0.161 0.014 | 515 13 | 60 60 |
| Carneros (Saintsbury) | 3/23/26 | 79.2 2.9 | 1456 | 43.5 0.0 | 0611 | 42.4 6.1 | 100 0 | 15 29 | 3.0 | 18.4 7.6 | 1653 | WSW | 251 | 0.00 | 5.62 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 3/23/26 | 80.5 3.5 | 1512 | 46.4 1.0 | 0129 | 41.9 6.5 | - | - | 4.0 | 17.0 5.2 | 1651 | WNW | 282 | 0.00 | 18.31 | 0.157 0.020 | 466 10 | 0 0 |
| Suscol Mtn (Ranch 93) | 3/23/26 | 76.7 0.4 | 1511 | 49.7 1.1 | 0543 | 38.9 8.1 | 85 6 | 16 19 | 5.2 | 21.7 9.8 | 1659 | WNW | 296 | 0.00 | 13.80 | - | - | 100 10 |
| Suscol Upper (Ranch 92) | 3/23/26 | 76.9 1.7 | 1542 | 49.1 0.5 | 0642 | 40.5 7.6 | 90 4 | 16 20 | 2.1 | 15.9 6.9 | 1608 | WSW | 258 | 0.00 | 18.16 | - | - | 100 10 |
| Stanly (Ranch 45) | 3/23/26 | 81.3 4.1 | 1507 | 43.5 1.8 | 0526 | 42.4 6.3 | 96 2 | 14 27 | 3.5 | 21.7 10.3 | 1652 | WNW | 292 | 0.00 | 19.65 | 0.187 0.030 | 548 21 | 0 0 |
| Carneros Upper (Ranch 81) | 3/23/26 | 78.2 1.3 | 1457 | 48.4 1.4 | 0652 | 38.9 8.3 | - | - | 6.1 | 28.1 8.3 | 1647 | WSW | 257 | - | - | - | - | 100 10 |
| Carneros (Mitsuko) | 3/23/26 | 78.8 2.0 | 1457 | 40.7 1.3 | 0707 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 3/23/26 | 83.1 4.4 | 1457 | 43.9 0.9 | 0612 | 40.8 5.9 | 100 0 | 0 0 | 1.1 | 11.8 1.4 | 1656 | WSW | 257 | 0.00 | 16.94 | 0.122 0.005 | 401 4 | 0 0 |
| Carneros (Milton Rd) | 3/23/26 | 80.0 3.6 | 1512 | 43.2 0.0 | 0515 | 42.5 5.6 | 95 0 | 16 27 | - | - | - | - | 0.00 | 17.00 | - | - | 0 0 |
| Max | 83.2 | - | 55.5 | - | 45.8 | 100 | 20 | 6.1 | 28.1 | - | - | 0.00 | 29.29 | 0.187 | 612 | - | |
| Avg | - | - | - | - | 41.3 | - | - | 2.9 | - | - | - | - | - | - | - | - | |
| Min | 74.6 | - | 40.2 | - | 34.6 | 63 | 0 | 1.1 | 7.5 | - | - | 0.00 | 5.62 | 0.100 | 240 | - |