| 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 | 3/18/26 | 84.7 1.4 | 1709 | 49.5 4.4 | 0708 | - | - | - | - | - | - | - | 0.00 | 42.33 | - | - | 0 0 |
| Pope Valley (Weeks Lake) | 3/18/26 | 88.5 1.0 | 1640 | 39.7 1.2 | 0557 | 49.8 1.5 | 100 0 | 27 6 | 1.0 | 9.2 1.5 | 1809 | WSW | 246 | 0.00 | 21.60 | 0.146 0.003 | 463 1 | 70 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 | 3/18/26 | 88.8 0.1 | 1314 | 45.9 0.8 | 0727 | 55.7 2.7 | 100 0 | 35 10 | 2.1 | 11.7 1.7 | 1444 | E | 94 | 0.00 | 19.16 | 0.174 0.007 | 514 2 | 70 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 | 3/17/26 | 91.0 1.0 | 1649 | 41.9 1.4 | 0641 | 52.5 3.2 | 100 2 | 28 8 | - | - | - | - | - | - | - | - | 70 10 |
| Dollarhide 18A Remote | 3/18/26 | 93.5 3.5 | 1721 | 39.8 0.8 | 0642 | 51.4 2.2 | 100 0 | 31 10 | - | - | - | - | - | - | - | - | 60 10 |
| Angwin | 3/18/26 | 81.6 2.0 | 1549 | 62.3 4.7 | 0612 | 44.6 4.6 | 52 2 | 23 5 | 3.9 | 11.5 2.7 | 1526 | SE | 135 | 0.00 | 38.60 | 0.069 0.022 | 0 0 | 80 20 |
| Lower Angwin (Pioneer) | 3/18/26 | 84.4 1.0 | 1509 | 53.5 0.9 | 0059 | - | - | - | 2.5 | 11.7 1.2 | 1645 | SSW | 205 | - | - | - | - | 80 20 |
| Deer Park | 3/18/26 | 91.3 0.7 | 1514 | 62.4 0.5 | 0421 | 51.1 0.9 | 67 1 | 22 2 | 2.3 | 13.0 3.9 | 1314 | SW | 215 | 0.00 | 23.61 | 0.140 0.003 | 349 0 | 60 10 |
| Lower Chiles Valley (Brown) | 3/18/26 | 89.9 0.3 | 1600 | 44.3 0.9 | 0728 | 51.8 3.0 | 100 0 | 20 0 | 1.4 | 10.1 1.3 | 1607 | WNW | 297 | 0.00 | 20.67 | 0.161 0.000 | 501 0 | 70 10 |
| Moss Creek Vineyard/Reservior | 3/17/26 | 91.2 1.9 | 1705 | 47.2 2.8 | 0730 | 51.4 5.6 | 100 6 | 21 6 | - | - | - | - | 0.00 | 23.37 | - | - | 0 0 |
| Max | 93.5 | - | 62.4 | - | 55.7 | 100 | 35 | 3.9 | 13.0 | - | - | 0.00 | 42.33 | 0.174 | 514 | - | |
| Avg | - | - | - | - | 51.0 | - | - | 2.2 | - | - | - | - | - | - | - | - | |
| Min | 81.6 | - | 39.7 | - | 44.6 | 52 | 20 | 1.0 | 9.2 | - | - | 0.00 | 19.16 | 0.069 | 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 | 3/18/26 | 95.2 0.9 | 1340 | 47.5 0.1 | 0728 | 54.2 1.6 | 99 1 | 25 4 | - | - | - | - | 0.00 | 27.89 | - | - | 50 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) | 3/18/26 | 89.3 0.4 | 1519 | 64.2 0.6 | 0733 | 49.3 0.2 | 63 5 | 27 8 | - | - | - | - | 0.00 | 26.40 | - | - | 80 20 |
| Diamond Mtn (McEachran) | 3/18/26 | 90.8 0.9 | 1503 | 58.0 0.1 | 0720 | 50.9 1.7 | 70 2 | 25 7 | - | - | - | - | - | - | - | - | 40 10 |
| St. Helena-North | 3/18/26 | 93.4 0.2 | 1531 | 49.4 0.7 | 0737 | 50.0 1.1 | 100 0 | 21 6 | 2.0 | 9.6 0.2 | 1246 | SSE | 164 | 0.00 | 26.66 | 0.142 0.002 | 396 1 | 60 10 |
| St. Helena (NVV Office) | 3/18/26 | 94.1 0.8 | 1640 | 49.7 0.6 | 0731 | - | - | - | 1.1 | 8.1 0.7 | 1506 | SE | 136 | 0.00 | 23.51 | - | - | 60 10 |
| Tiara Fria (East St. Helena) | 3/18/26 | 90.5 2.7 | 1608 | 48.6 1.0 | 0652 | 52.9 0.7 | 97 0 | 22 4 | 1.8 | 11.0 2.1 | 1819 | WSW | 244 | 0.00 | 21.80 | - | - | 60 10 |
| Rutherford Hill Estate | 3/18/26 | 91.2 1.9 | 1536 | 58.9 0.5 | 0747 | 54.6 1.0 | 79 4 | 23 1 | 1.4 | 10.3 2.0 | 1450 | S | 190 | 0.00 | 21.35 | 0.144 0.003 | 426 1 | 60 10 |
| Rutherford-North (Mee Ln) | 3/18/26 | 90.8 5.9 | 1738 | 46.0 1.2 | 0726 | 53.4 1.2 | 96 0 | 28 9 | 2.2 | 11.4 0.7 | 1623 | ESE | 122 | 0.00 | 20.49 | 0.150 0.004 | 437 1 | 60 10 |
| Rutherford (STS) | 3/18/26 | 91.9 4.2 | 1442 | 48.4 2.6 | 0724 | 55.6 0.8 | 91 0 | 32 8 | 2.2 | 10.7 0.4 | 1638 | ESE | 123 | 0.00 | 21.65 | 0.176 0.006 | 520 1 | 60 10 |
| Oakville-NE (Ranch 88) | 3/18/26 | 91.0 2.1 | 1552 | 44.6 1.1 | 0724 | 52.2 1.4 | 99 0 | 24 4 | 1.1 | 11.7 2.3 | 1705 | SSE | 156 | 0.00 | 21.19 | 0.162 0.002 | 486 2 | 0 0 |
| OV561-East | 3/18/26 | 92.1 3.8 | 1608 | 46.8 1.3 | 0729 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| Oakville | 3/18/26 | 90.2 0.3 | 1541 | 46.0 0.8 | 0728 | 53.5 1.5 | 98 0 | 24 3 | 1.9 | 11.7 0.2 | 1602 | SE | 126 | 0.00 | 21.73 | 0.167 0.000 | 498 2 | 60 10 |
| OV518-West | 3/18/26 | 90.7 1.4 | 1801 | 48.2 2.3 | 0715 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| To Kalon Remote (TKKE) | 3/18/26 | 92.1 2.4 | 1445 | 46.7 2.8 | 0736 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| To Kalon | 3/18/26 | 90.7 3.0 | 1659 | 47.0 0.6 | 0736 | 53.6 1.3 | 100 0 | 26 7 | 2.0 | 11.3 1.9 | 1547 | SSE | 148 | 0.00 | 23.62 | 0.159 0.005 | 463 0 | 60 10 |
| To Kalon Remote (TKN5) | 3/18/26 | 92.8 1.4 | 1523 | 45.8 1.5 | 0735 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| Yountville (Ranch 67) | 3/18/26 | 88.7 1.3 | 1446 | 45.7 0.6 | 0727 | 54.0 2.0 | 97 0 | 30 8 | 1.9 | 10.8 0.3 | 1551 | SSE | 168 | 0.00 | 19.96 | 0.163 0.000 | 503 3 | 70 10 |
| Stags Leap Dist (Silverado Vineyards) | 3/18/26 | 88.1 1.3 | 1615 | 48.1 2.2 | 0733 | 53.6 1.4 | 97 0 | 29 6 | 1.4 | 10.6 0.3 | 1656 | SE | 144 | 0.00 | 23.91 | 0.163 0.001 | 489 6 | 80 10 |
| Borreo (Soda Canyon) | 3/18/26 | 87.7 0.8 | 1632 | 50.6 0.8 | 0710 | 53.4 2.1 | 93 6 | 30 11 | 1.9 | 9.5 2.1 | 1522 | SE | 126 | 0.00 | 23.83 | 0.161 0.002 | 508 4 | 0 0 |
| Wappo Hill Floor | 3/18/26 | 90.5 1.2 | 1504 | 43.9 1.9 | 0649 | 54.5 2.1 | 100 0 | 30 6 | 1.4 | 9.8 0.6 | 1428 | S | 175 | 0.00 | 23.28 | 0.159 0.000 | 476 2 | 60 10 |
| Stags Leap Dist (Chimney Rock) | 3/18/26 | 90.1 0.4 | 1619 | 46.2 1.6 | 0655 | 55.5 1.7 | 100 0 | 33 5 | 1.6 | 11.3 2.2 | 1517 | S | 187 | 0.00 | 22.51 | 0.149 0.003 | 449 5 | 70 10 |
| Yountville-South (Ranch 87) | 3/18/26 | 89.7 1.6 | 1511 | 47.8 2.5 | 0724 | 55.5 1.5 | 100 0 | 30 5 | 1.3 | 9.8 0.6 | 1511 | SSE | 162 | 0.00 | 23.66 | 0.137 0.002 | 396 0 | 60 10 |
| Yountville-SE (Ranch 85) | 3/18/26 | 91.5 0.3 | 1456 | 47.5 1.5 | 0646 | 55.6 1.9 | 100 0 | 30 5 | 0.6 | 7.8 0.0 | 1504 | SSW | 210 | 0.00 | 22.19 | - | 0 0 | 70 10 |
| Oak Knoll-East (Ranch 53) | 3/18/26 | 90.8 0.4 | 1557 | 47.8 1.8 | 0735 | 53.4 1.1 | 96 0 | 28 5 | 1.2 | 9.8 0.8 | 1612 | SSW | 206 | 0.00 | 20.46 | 0.152 0.000 | 466 4 | 60 10 |
| Napa-NW (Ranch 54) | 3/18/26 | 90.0 0.6 | 1610 | 49.7 1.3 | 0730 | 53.2 0.0 | 93 7 | 28 2 | 1.4 | 8.9 1.0 | 1511 | SSE | 167 | 0.00 | 22.69 | - | 0 0 | 80 10 |
| Napa-North (Ranch 29) | 3/18/26 | 90.1 0.2 | 1712 | 49.4 1.8 | 0730 | 56.0 2.0 | 100 0 | 29 2 | 1.2 | 10.5 0.6 | 1505 | SSW | 193 | 0.00 | 20.32 | 0.111 0.003 | 298 4 | 70 10 |
| Max | 95.2 | - | 64.2 | - | 56.0 | 100 | 33 | 2.2 | 11.7 | - | - | 0.00 | 27.89 | 0.176 | 520 | - | |
| Avg | - | - | - | - | 53.6 | - | - | 1.6 | - | - | - | - | - | - | - | - | |
| Min | 87.7 | - | 43.9 | - | 49.3 | 63 | 21 | 0.6 | 7.8 | - | - | 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 | 3/18/26 | 83.2 3.7 | 1403 | 67.9 1.3 | 0606 | 46.9 2.7 | 51 1 | 16 2 | 1.8 | 9.8 0.6 | 1523 | S | 185 | 0.00 | 29.29 | 0.195 0.007 | 679 69 | 80 20 |
| Mount George (Napa East) | 3/18/26 | 91.4 1.5 | 1512 | 50.4 2.5 | 0601 | 57.1 2.4 | 99 0 | 34 2 | 1.0 | 9.1 1.8 | 1616 | WSW | 250 | 0.00 | 11.88 | 0.159 0.003 | 499 1 | 10 10 |
| Napa-East (Palmaz 300') | 3/18/26 | 89.8 0.8 | 1430 | 50.9 1.1 | 0742 | 55.7 2.0 | 100 7 | 33 2 | 1.8 | 11.3 1.2 | 2000 | NE | 50 | 0.00 | 18.31 | 0.147 0.000 | 448 4 | 70 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') | 3/18/26 | 85.7 0.1 | 1409 | 54.0 0.2 | 0300 | 54.1 3.2 | 90 4 | 35 5 | 2.8 | 9.4 0.1 | 1601 | SW | 232 | 0.00 | 24.80 | 0.162 0.002 | 498 4 | 80 20 |
| Wooden Valley | 3/18/26 | 86.2 0.5 | 1709 | 43.7 0.7 | 0743 | 53.2 1.9 | 98 0 | 34 5 | 0.9 | 7.7 0.6 | 1541 | SSE | 167 | 0.00 | 24.00 | 0.150 0.000 | 498 0 | 100 0 |
| Napa-West Upper (Truchard) | 3/18/26 | 89.4 0.9 | 1526 | 55.7 0.4 | 0732 | 55.8 1.1 | 89 3 | 31 2 | 1.8 | 10.0 0.1 | 1557 | S | 190 | 0.00 | 20.16 | 0.168 0.002 | 497 2 | 0 0 |
| Napa-West Lower (Truchard) | 3/18/26 | 91.9 0.4 | 1627 | 44.9 0.4 | 0735 | 54.3 1.0 | 100 0 | 31 2 | - | - | - | - | - | - | - | - | 70 10 |
| Napa-South (Toyon Farms) | 3/18/26 | 89.3 1.5 | 1634 | 53.3 0.9 | 0806 | 59.4 1.2 | 100 2 | 39 1 | 2.0 | 8.4 0.3 | 1533 | S | 181 | 0.00 | 13.94 | 0.085 0.000 | 235 2 | 50 10 |
| Toyon Remote 1 | 3/18/26 | 88.9 1.1 | 1454 | 44.9 1.1 | 0607 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 3/18/26 | 88.7 1.6 | 1635 | 47.3 0.2 | 0658 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 3/18/26 | 91.8 3.3 | 1729 | 45.2 0.7 | 0718 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 3/18/26 | 89.6 1.7 | 1632 | 48.8 1.5 | 0726 | 54.6 1.2 | 96 4 | 32 0 | 1.9 | 8.5 0.4 | 1438 | SSE | 164 | 0.00 | 19.35 | 0.162 0.003 | 509 4 | 0 0 |
| Carneros (Saintsbury) | 3/18/26 | 89.2 1.8 | 1652 | 48.4 0.1 | 0655 | 55.5 1.4 | 100 6 | 35 2 | 1.6 | 8.6 0.7 | 1817 | WSW | 254 | 0.00 | 5.62 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 3/18/26 | 87.8 1.5 | 1545 | 50.1 0.2 | 0733 | 54.5 1.6 | - | - | 3.4 | 13.7 0.9 | 1425 | SE | 135 | 0.00 | 18.31 | 0.159 0.001 | 465 3 | 0 0 |
| Suscol Mtn (Ranch 93) | 3/18/26 | 87.4 1.0 | 1413 | 65.5 1.3 | 0702 | 51.4 2.6 | 61 5 | 29 0 | 3.2 | 16.3 1.3 | 1407 | SE | 139 | 0.00 | 13.80 | - | - | 80 20 |
| Suscol Upper (Ranch 92) | 3/18/26 | 88.7 0.5 | 1458 | 64.5 0.6 | 0705 | 53.0 2.8 | 64 4 | 29 3 | 1.1 | 11.4 4.3 | 1400 | ENE | 72 | 0.00 | 18.16 | - | - | 80 20 |
| Stanly (Ranch 45) | 3/18/26 | 90.9 2.9 | 1704 | 45.8 2.0 | 0652 | 54.8 0.3 | 100 5 | 31 1 | 2.3 | 9.9 0.5 | 1515 | SSW | 194 | 0.00 | 19.65 | 0.179 0.002 | 540 5 | 0 0 |
| Carneros Upper (Ranch 81) | 3/18/26 | 88.7 1.2 | 1636 | 59.1 0.7 | 0651 | 54.2 2.4 | - | - | 3.2 | 12.7 3.1 | 1805 | WSW | 254 | - | - | - | - | 50 10 |
| Carneros (Mitsuko) | 3/18/26 | 90.2 2.9 | 1617 | 44.3 0.5 | 0604 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 3/18/26 | 92.4 5.9 | 1652 | 48.2 0.9 | 0729 | 51.9 0.4 | 100 0 | 0 0 | 0.9 | 7.0 1.8 | 1448 | SSE | 164 | 0.00 | 16.94 | 0.124 0.001 | 392 5 | 0 0 |
| Carneros (Milton Rd) | 3/18/26 | 89.4 1.9 | 1701 | 47.5 0.8 | 0645 | 54.7 1.1 | 96 1 | 34 0 | - | - | - | - | 0.00 | 17.00 | - | - | 0 0 |
| Max | 92.4 | - | 67.9 | - | 59.4 | 100 | 39 | 3.4 | 16.3 | - | - | 0.00 | 29.29 | 0.195 | 679 | - | |
| Avg | - | - | - | - | 54.2 | - | - | 2.0 | - | - | - | - | - | - | - | - | |
| Min | 83.2 | - | 43.7 | - | 46.9 | 51 | 0 | 0.9 | 7.0 | - | - | 0.00 | 5.62 | 0.085 | 235 | - |