| 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 | 3/17/26 | 86.1 1.5 | 1755 | 53.9 1.9 | 0728 | - | - | - | - | - | - | - | 0.00 | 42.33 | - | - | 0 0 |
| Pope Valley (Weeks Lake) | 3/17/26 | 87.5 5.0 | 1653 | 38.4 0.4 | 0648 | 48.2 3.5 | 100 0 | 22 8 | 0.9 | 7.7 2.8 | 1500 | ESE | 107 | 0.00 | 21.60 | 0.143 0.004 | 464 10 | 80 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 | 3/17/26 | 88.7 1.5 | 1641 | 46.8 1.8 | 0705 | 53.0 2.8 | 100 4 | 24 2 | 1.6 | 10.0 3.6 | 1425 | E | 99 | 0.00 | 19.16 | 0.167 0.002 | 512 20 | 80 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 | 3/17/26 | 97.0 4.5 | 1734 | 39.0 2.7 | 0720 | 49.2 2.4 | 100 1 | 21 2 | - | - | - | - | - | - | - | - | 70 10 |
| Angwin | 3/17/26 | 83.6 0.5 | 1618 | 67.0 2.3 | 0820 | 40.0 2.4 | 54 13 | 17 1 | 4.8 | 14.2 3.9 | 1008 | NNE | 14 | 0.00 | 38.60 | 0.091 0.024 | 0 0 | 60 60 |
| Lower Angwin (Pioneer) | 3/17/26 | 85.4 0.9 | 1734 | 54.5 1.4 | 2258 | - | - | - | 2.9 | 12.9 1.0 | 1211 | NE | 54 | - | - | - | - | 60 60 |
| Deer Park | 3/17/26 | 92.0 0.0 | 1615 | 62.9 0.6 | 0601 | 50.2 5.6 | 66 8 | 20 4 | 2.1 | 9.1 4.7 | 1346 | SW | 223 | 0.00 | 23.61 | 0.137 0.007 | 349 9 | 70 10 |
| Lower Chiles Valley (Brown) | 3/17/26 | 90.2 1.3 | 1554 | 43.5 1.8 | 0736 | 48.8 3.2 | 100 0 | 20 5 | 1.2 | 8.8 2.2 | 1118 | ENE | 57 | 0.00 | 20.67 | 0.161 0.001 | 502 16 | 80 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 | 97.0 | - | 67.0 | - | 53.0 | 100 | 28 | 4.8 | 14.2 | - | - | 0.00 | 42.33 | 0.167 | 512 | - | |
| Avg | - | - | - | - | 49.2 | - | - | 2.3 | - | - | - | - | - | - | - | - | |
| Min | 83.6 | - | 38.4 | - | 40.0 | 54 | 17 | 0.9 | 7.7 | - | - | 0.00 | 19.16 | 0.091 | 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 | 3/17/26 | 96.1 0.4 | 1413 | 47.6 0.6 | 0718 | 52.5 1.5 | 98 5 | 22 2 | - | - | - | - | 0.00 | 27.89 | - | - | 60 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) | 3/17/26 | 89.7 1.5 | 1517 | 64.8 2.8 | 0636 | 49.0 6.3 | 59 8 | 19 4 | - | - | - | - | 0.00 | 26.40 | - | - | 60 60 |
| Diamond Mtn (McEachran) | 3/17/26 | 91.7 0.2 | 1515 | 57.8 0.0 | 0508 | 49.2 2.4 | 68 5 | 18 3 | - | - | - | - | - | - | - | - | 50 10 |
| St. Helena-North | 3/17/26 | 93.2 1.9 | 1511 | 48.7 0.4 | 0712 | 49.0 2.8 | 100 16 | 15 4 | 2.2 | 9.9 0.7 | 1317 | S | 179 | 0.00 | 26.66 | 0.144 0.003 | 395 11 | 70 10 |
| St. Helena (NVV Office) | 3/17/26 | 94.9 0.9 | 1706 | 49.1 0.9 | 0650 | - | - | - | 1.1 | 7.4 2.1 | 1421 | NE | 40 | 0.00 | 23.51 | - | - | 70 10 |
| Tiara Fria (East St. Helena) | 3/17/26 | 93.2 1.1 | 1717 | 47.6 0.4 | 0738 | 52.3 2.4 | 97 3 | 18 4 | 1.6 | 8.9 1.8 | 1254 | ESE | 121 | 0.00 | 21.80 | - | - | 70 10 |
| Rutherford Hill Estate | 3/17/26 | 93.1 3.2 | 1653 | 58.4 0.4 | 0616 | 53.6 4.4 | 75 6 | 22 2 | 1.3 | 8.3 2.4 | 1403 | SSE | 161 | 0.00 | 21.35 | 0.141 0.005 | 426 12 | 70 10 |
| Rutherford-North (Mee Ln) | 3/17/26 | 96.7 8.2 | 1650 | 44.7 0.5 | 0735 | 52.3 1.6 | 96 5 | 18 5 | 2.1 | 10.7 3.9 | 1744 | SE | 143 | 0.00 | 20.49 | 0.146 0.004 | 437 13 | 70 10 |
| Rutherford (STS) | 3/17/26 | 96.1 5.1 | 1555 | 45.9 1.0 | 0738 | 54.8 1.6 | 91 1 | 24 3 | 1.8 | 10.4 1.3 | 1725 | ESE | 112 | 0.00 | 21.65 | 0.170 0.000 | 519 14 | 70 10 |
| Oakville-NE (Ranch 88) | 3/17/26 | 93.1 5.5 | 1628 | 43.5 0.6 | 0732 | 50.8 1.6 | 99 4 | 20 4 | 1.3 | 9.4 3.3 | 1742 | SSW | 192 | 0.00 | 21.19 | 0.160 0.001 | 484 12 | 0 0 |
| OV561-East | 3/17/26 | 95.9 6.9 | 1619 | 45.5 1.3 | 0613 | - | - | - | - | - | - | - | - | - | - | - | 70 10 |
| Oakville | 3/17/26 | 90.5 3.9 | 1545 | 45.2 1.0 | 0746 | 52.0 2.3 | 98 4 | 22 6 | 2.1 | 11.5 2.3 | 1754 | SE | 128 | 0.00 | 21.73 | 0.167 0.005 | 496 11 | 70 10 |
| OV518-West | 3/17/26 | 89.3 2.9 | 1559 | 45.9 0.2 | 0742 | - | - | - | - | - | - | - | - | - | - | - | 70 10 |
| To Kalon Remote (TKKE) | 3/17/26 | 94.5 4.5 | 1626 | 43.9 0.0 | 0645 | - | - | - | - | - | - | - | - | - | - | - | 70 10 |
| To Kalon | 3/17/26 | 93.7 5.5 | 1632 | 46.4 1.4 | 0651 | 52.3 2.0 | 99 6 | 19 6 | 1.7 | 9.4 3.2 | 1727 | SSE | 166 | 0.00 | 23.62 | 0.154 0.008 | 463 13 | 70 10 |
| To Kalon Remote (TKN5) | 3/17/26 | 94.2 5.2 | 1640 | 44.3 0.6 | 0626 | - | - | - | - | - | - | - | - | - | - | - | 70 10 |
| Yountville (Ranch 67) | 3/17/26 | 90.0 5.6 | 1536 | 45.1 1.2 | 0712 | 52.0 2.4 | 97 2 | 22 7 | 2.1 | 11.1 1.6 | 1747 | SSE | 161 | 0.00 | 19.96 | 0.163 0.001 | 500 12 | 80 10 |
| Stags Leap Dist (Silverado Vineyards) | 3/17/26 | 89.4 5.1 | 1604 | 45.9 2.1 | 0741 | 52.2 3.0 | 98 2 | 23 6 | 1.8 | 10.9 2.4 | 1740 | SE | 130 | 0.00 | 23.91 | 0.164 0.003 | 482 11 | 90 20 |
| Borreo (Soda Canyon) | 3/17/26 | 88.5 5.0 | 1611 | 49.9 2.3 | 0728 | 51.3 3.0 | 87 0 | 19 9 | 1.9 | 7.4 0.8 | 1506 | S | 169 | 0.00 | 23.83 | 0.159 0.005 | 505 10 | 0 0 |
| Wappo Hill Floor | 3/17/26 | 91.7 4.8 | 1550 | 42.0 0.1 | 0733 | 52.3 2.1 | 100 0 | 24 4 | 1.5 | 9.2 1.0 | 1702 | SSE | 156 | 0.00 | 23.28 | 0.159 0.001 | 475 12 | 70 10 |
| Stags Leap Dist (Chimney Rock) | 3/17/26 | 90.5 4.8 | 1551 | 44.7 2.0 | 0708 | 53.8 2.8 | 100 0 | 28 4 | 1.6 | 9.1 1.7 | 1650 | S | 174 | 0.00 | 22.51 | 0.146 0.002 | 444 11 | 80 10 |
| Yountville-South (Ranch 87) | 3/17/26 | 91.3 5.2 | 1516 | 45.4 1.8 | 0706 | 54.0 3.0 | 100 0 | 25 4 | 1.8 | 9.2 1.9 | 1716 | S | 176 | 0.00 | 23.66 | 0.139 0.000 | 396 1 | 70 10 |
| Yountville-SE (Ranch 85) | 3/17/26 | 91.8 5.2 | 1550 | 46.0 1.5 | 0738 | 53.7 2.9 | 100 3 | 25 4 | 0.8 | 7.8 1.8 | 1240 | SSE | 147 | 0.00 | 22.19 | - | 0 0 | 80 10 |
| Oak Knoll-East (Ranch 53) | 3/17/26 | 91.2 4.7 | 1515 | 46.0 1.2 | 0712 | 52.3 2.6 | 96 1 | 23 3 | 1.5 | 9.0 1.2 | 1723 | S | 179 | 0.00 | 20.46 | 0.152 0.003 | 462 10 | 70 10 |
| Napa-NW (Ranch 54) | 3/17/26 | 89.4 3.7 | 1547 | 48.4 2.6 | 0702 | 53.1 3.6 | 100 8 | 26 2 | 1.8 | 9.9 1.7 | 1654 | S | 176 | 0.00 | 22.69 | - | 0 0 | 90 10 |
| Napa-North (Ranch 29) | 3/17/26 | 90.3 2.7 | 1453 | 47.7 1.7 | 0719 | 54.0 3.0 | 100 0 | 27 1 | 1.4 | 9.9 1.2 | 1616 | S | 181 | 0.00 | 20.32 | 0.114 0.002 | 302 0 | 80 10 |
| Max | 96.7 | - | 64.8 | - | 54.8 | 100 | 28 | 2.2 | 11.5 | - | - | 0.00 | 27.89 | 0.170 | 519 | - | |
| Avg | - | - | - | - | 52.2 | - | - | 1.7 | - | - | - | - | - | - | - | - | |
| Min | 88.5 | - | 42.0 | - | 49.0 | 59 | 15 | 0.8 | 7.4 | - | - | 0.00 | 19.96 | 0.114 | 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 | 3/17/26 | 86.9 1.3 | 1520 | 69.1 1.6 | 0714 | 44.2 2.5 | 50 4 | 18 2 | 1.6 | 10.4 0.2 | 1048 | N | 354 | 0.00 | 29.29 | 0.188 0.018 | 611 77 | 60 60 |
| Mount George (Napa East) | 3/17/26 | 92.9 4.5 | 1442 | 47.9 2.2 | 0712 | 54.7 4.1 | 99 4 | 32 2 | 1.0 | 7.3 1.6 | 1459 | SW | 236 | 0.00 | 11.88 | 0.156 0.006 | 498 7 | 20 10 |
| Napa-East (Palmaz 300') | 3/17/26 | 89.0 1.1 | 1552 | 49.8 1.6 | 0741 | 53.7 4.1 | 93 3 | 31 5 | 1.9 | 10.1 1.0 | 2109 | ENE | 62 | 0.00 | 18.31 | 0.147 0.006 | 445 6 | 80 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') | 3/17/26 | 85.8 1.2 | 1405 | 54.1 1.4 | 0114 | 50.9 6.7 | 86 1 | 30 11 | 2.7 | 9.5 8.6 | 1216 | N | 6 | 0.00 | 24.80 | 0.164 0.012 | 495 14 | 60 60 |
| Wooden Valley | 3/17/26 | 85.7 2.5 | 1435 | 43.0 1.4 | 0742 | 51.3 1.8 | 98 2 | 30 4 | 1.0 | 7.1 3.0 | 1655 | ESE | 123 | 0.00 | 24.00 | 0.150 0.001 | 498 6 | 100 0 |
| Napa-West Upper (Truchard) | 3/17/26 | 88.5 2.3 | 1426 | 56.1 1.4 | 0433 | 54.7 5.5 | 86 4 | 29 1 | 1.9 | 10.0 1.6 | 1657 | S | 186 | 0.00 | 20.16 | 0.166 0.001 | 494 5 | 0 0 |
| Napa-West Lower (Truchard) | 3/17/26 | 91.5 4.0 | 1510 | 44.5 2.5 | 0726 | 53.3 3.6 | 100 0 | 29 0 | - | - | - | - | - | - | - | - | 80 10 |
| Napa-South (Toyon Farms) | 3/17/26 | 87.8 2.0 | 1401 | 52.4 2.2 | 0729 | 58.2 4.5 | 98 2 | 40 6 | 1.9 | 8.8 0.5 | 1512 | S | 169 | 0.00 | 13.94 | 0.085 0.003 | 233 2 | 60 10 |
| Toyon Remote 1 | 3/17/26 | 87.8 3.2 | 1406 | 45.9 2.8 | 0528 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 3/17/26 | 87.1 2.4 | 1724 | 47.1 2.6 | 0550 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 3/17/26 | 88.5 2.1 | 1559 | 44.5 1.7 | 0732 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 3/17/26 | 87.9 1.6 | 1722 | 50.3 2.5 | 0728 | 53.4 3.5 | 92 2 | 32 5 | 2.2 | 8.1 1.6 | 1524 | SSE | 154 | 0.00 | 19.35 | 0.159 0.004 | 505 4 | 0 0 |
| Carneros (Saintsbury) | 3/17/26 | 87.4 3.9 | 1445 | 48.5 1.6 | 0719 | 54.2 3.7 | 94 4 | 32 2 | 1.6 | 7.9 0.1 | 1522 | S | 176 | 0.00 | 5.62 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 3/17/26 | 86.3 0.2 | 1630 | 50.3 3.4 | 0523 | 52.9 4.1 | - | - | 3.5 | 12.9 2.7 | 1357 | SSE | 163 | 0.00 | 18.31 | 0.160 0.008 | 462 1 | 0 0 |
| Suscol Mtn (Ranch 93) | 3/17/26 | 88.4 4.0 | 1541 | 66.8 2.5 | 0718 | 48.8 5.6 | 56 6 | 29 9 | 3.3 | 17.6 2.0 | 1405 | SE | 145 | 0.00 | 13.80 | - | - | 60 60 |
| Suscol Upper (Ranch 92) | 3/17/26 | 89.2 4.7 | 1623 | 65.2 1.7 | 0643 | 50.2 5.6 | 60 8 | 31 7 | 1.8 | 15.8 8.0 | 1305 | ENE | 69 | 0.00 | 18.16 | - | - | 60 60 |
| Stanly (Ranch 45) | 3/17/26 | 88.0 0.8 | 1817 | 47.8 2.9 | 0538 | 54.4 4.2 | 95 2 | 32 7 | 2.7 | 10.4 1.3 | 1332 | ESE | 120 | 0.00 | 19.65 | 0.177 0.005 | 536 2 | 0 0 |
| Carneros Upper (Ranch 81) | 3/17/26 | 87.5 2.4 | 1554 | 58.3 1.2 | 0428 | 51.8 4.9 | - | - | 2.8 | 9.6 2.9 | 2127 | W | 265 | - | - | - | - | 60 60 |
| Carneros (Mitsuko) | 3/17/26 | 87.3 2.4 | 1408 | 43.8 1.6 | 0736 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 3/17/26 | 86.5 2.9 | 1545 | 47.3 1.3 | 0719 | 52.4 2.9 | 100 0 | 0 0 | 1.1 | 8.8 0.7 | 1337 | S | 176 | 0.00 | 16.94 | 0.125 0.000 | 387 5 | 0 0 |
| Carneros (Milton Rd) | 3/17/26 | 87.5 2.0 | 1730 | 46.8 2.3 | 0512 | 53.6 3.4 | 95 1 | 33 5 | - | - | - | - | 0.00 | 17.00 | - | - | 0 0 |
| Max | 92.9 | - | 69.1 | - | 58.2 | 100 | 40 | 3.5 | 17.6 | - | - | 0.00 | 29.29 | 0.188 | 611 | - | |
| Avg | - | - | - | - | 52.5 | - | - | 2.1 | - | - | - | - | - | - | - | - | |
| Min | 85.7 | - | 43.0 | - | 44.2 | 50 | 0 | 1.0 | 7.1 | - | - | 0.00 | 5.62 | 0.085 | 233 | - |