| 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 | 3/12/26 | 78.4 6.2 | 1604 | 42.8 3.5 | 0803 | - | - | - | - | - | - | - | 0.00 | 42.33 | - | - | 0 0 |
| Pope Valley (Weeks Lake) | 3/12/26 | 83.8 7.3 | 1547 | 33.0 1.4 | 0651 | 39.7 0.1 | 100 0 | 10 12 | 1.3 | 11.0 3.3 | 1658 | W | 264 | 0.00 | 21.60 | 0.137 0.017 | 449 11 | 90 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 | 3/12/26 | 82.2 5.1 | 1537 | 40.3 1.6 | 0746 | 45.3 1.0 | 100 0 | 16 9 | 1.9 | 13.8 5.7 | 1653 | SSW | 208 | 0.00 | 19.16 | 0.155 0.020 | 490 15 | 90 20 |
| Dollarhide 1AS Remote | 3/12/26 | 83.7 2.0 | 1717 | 35.4 2.8 | 0728 | 42.2 0.8 | 95 0 | 14 11 | 1.1 | 13.2 7.1 | 1654 | SW | 227 | - | - | - | - | 90 20 |
| Dollarhide 17B Remote | 3/12/26 | 84.4 3.0 | 1608 | 35.8 0.7 | 0722 | 44.1 0.8 | 100 0 | 14 10 | - | - | - | - | - | - | - | - | 90 20 |
| Dollarhide 18A Remote | 3/12/26 | 83.6 1.2 | 1641 | 32.5 1.5 | 0700 | 41.4 0.5 | 100 0 | 15 10 | - | - | - | - | - | - | - | - | 60 20 |
| Angwin | 3/12/26 | 73.0 4.2 | 1510 | 57.0 7.3 | 0330 | 30.6 3.9 | 46 3 | 8 20 | 2.8 | 12.3 0.0 | 1353 | SE | 135 | 0.00 | 38.60 | 0.056 0.005 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 3/12/26 | 75.8 4.1 | 1512 | 42.9 1.0 | 0652 | - | - | - | 2.0 | 13.4 2.7 | 1643 | WSW | 241 | - | - | - | - | 0 0 |
| Deer Park | 3/12/26 | 81.6 3.9 | 1514 | 50.8 5.1 | 0723 | 40.8 0.9 | 68 6 | 12 9 | 2.7 | 12.1 2.5 | 1546 | WNW | 299 | 0.00 | 23.61 | 0.129 0.015 | 343 10 | 90 20 |
| Lower Chiles Valley (Brown) | 3/12/26 | 80.4 2.1 | 1527 | 36.1 2.4 | 0704 | 41.9 2.3 | 100 0 | 20 0 | 1.4 | 12.1 1.8 | 1537 | NW | 319 | 0.00 | 20.67 | 0.149 0.017 | 486 18 | 0 0 |
| Moss Creek Vineyard/Reservior | 3/12/26 | 85.8 7.5 | 1517 | 40.3 3.5 | 0755 | 43.8 2.6 | 100 0 | 15 3 | - | - | - | - | 0.00 | 23.37 | - | - | 0 0 |
| Max | 85.8 | - | 57.0 | - | 45.3 | 100 | 20 | 2.8 | 13.8 | - | - | 0.00 | 42.33 | 0.155 | 490 | - | |
| Avg | - | - | - | - | 41.1 | - | - | 1.9 | - | - | - | - | - | - | - | - | |
| Min | 73.0 | - | 32.5 | - | 30.6 | 46 | 8 | 1.1 | 11.0 | - | - | 0.00 | 19.16 | 0.056 | 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 | 3/12/26 | 84.3 4.9 | 1503 | 40.1 1.8 | 0724 | 44.8 0.4 | 97 0 | 19 4 | - | - | - | - | 0.00 | 27.89 | - | - | 100 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) | 3/12/26 | 80.7 4.8 | 1642 | 53.2 5.8 | 0044 | 40.1 0.8 | 61 11 | 14 11 | - | - | - | - | 0.00 | 26.40 | - | - | 0 0 |
| Diamond Mtn (McEachran) | 3/12/26 | 81.2 3.5 | 1602 | 49.6 4.7 | 0717 | 41.6 0.8 | 77 8 | 12 12 | - | - | - | - | - | - | - | - | 0 0 |
| St. Helena-North | 3/12/26 | 85.3 5.1 | 1517 | 41.9 3.3 | 0743 | 40.5 1.1 | 91 1 | 9 11 | 1.8 | 8.1 0.7 | 1607 | NW | 306 | 0.00 | 26.66 | 0.120 0.008 | 383 13 | 100 10 |
| St. Helena (NVV Office) | 3/12/26 | 85.6 4.6 | 1700 | 43.7 3.5 | 0752 | - | - | - | 1.2 | 14.1 6.5 | 1724 | N | 354 | 0.00 | 23.51 | - | - | 100 10 |
| Tiara Fria (East St. Helena) | 3/12/26 | 82.3 2.9 | 1646 | 41.6 3.0 | 0741 | 45.3 3.9 | 95 1 | 21 1 | 1.5 | 8.4 0.9 | 1617 | S | 188 | 0.00 | 21.80 | - | - | 90 20 |
| Rutherford Hill Estate | 3/12/26 | 83.2 2.4 | 1745 | 48.9 2.5 | 0801 | 46.0 4.4 | 79 0 | 30 10 | 1.3 | 7.9 0.7 | 1345 | S | 177 | 0.00 | 21.35 | 0.123 0.002 | 413 11 | 90 20 |
| Rutherford-North (Mee Ln) | 3/12/26 | 82.7 2.1 | 1540 | 39.6 1.5 | 0732 | 46.0 4.5 | 94 1 | 30 13 | 1.8 | 7.9 0.0 | 1321 | ESE | 107 | 0.00 | 20.49 | 0.126 0.005 | 421 10 | 90 20 |
| Rutherford (STS) | 3/12/26 | 81.4 0.8 | 1602 | 41.1 2.2 | 0732 | 48.2 3.9 | 93 0 | 37 15 | 2.1 | 7.5 0.2 | 1657 | ESE | 102 | 0.00 | 21.65 | 0.148 0.008 | 502 11 | 90 20 |
| Oakville-NE (Ranch 88) | 3/12/26 | 81.0 1.4 | 1538 | 38.6 2.8 | 0732 | 44.6 4.2 | 95 4 | 29 13 | 1.0 | 7.6 1.6 | 1352 | SSW | 213 | 0.00 | 21.19 | 0.137 0.007 | 470 11 | 0 0 |
| OV561-East | 3/12/26 | 84.6 2.1 | 1615 | 40.0 1.9 | 0733 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| Oakville | 3/12/26 | 80.5 1.3 | 1709 | 39.5 2.6 | 0723 | 45.2 3.8 | 97 0 | 29 13 | 1.8 | 9.1 0.9 | 1551 | ESE | 113 | 0.00 | 21.73 | 0.144 0.009 | 483 12 | 90 20 |
| OV518-West | 3/12/26 | 79.9 3.1 | 1817 | 40.6 2.5 | 0751 | - | - | - | - | - | - | - | - | - | - | - | 90 20 |
| To Kalon Remote (TKKE) | 3/12/26 | 82.5 1.6 | 1551 | 38.7 1.0 | 0734 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| To Kalon | 3/12/26 | 80.9 1.6 | 1609 | 41.1 3.2 | 0652 | 45.9 4.2 | 97 0 | 32 16 | 1.8 | 8.4 2.2 | 1334 | S | 185 | 0.00 | 23.62 | 0.135 0.005 | 450 10 | 90 20 |
| To Kalon Remote (TKN5) | 3/12/26 | 82.9 2.8 | 1613 | 39.8 2.9 | 0705 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| Yountville (Ranch 67) | 3/12/26 | 79.4 1.7 | 1622 | 39.0 2.3 | 0739 | 45.3 3.1 | 97 0 | 31 10 | 2.0 | 10.4 2.0 | 1526 | SE | 146 | 0.00 | 19.96 | 0.143 0.008 | 496 3 | 0 0 |
| Stags Leap Dist (Silverado Vineyards) | 3/12/26 | 79.5 2.2 | 1650 | 39.4 1.5 | 0730 | 44.4 2.7 | 97 1 | 30 9 | 1.6 | 10.0 1.1 | 1519 | SE | 136 | 0.00 | 23.91 | 0.144 0.008 | 471 13 | 0 0 |
| Borreo (Soda Canyon) | 3/12/26 | 78.4 3.0 | 1639 | 42.2 3.9 | 0729 | 44.7 2.6 | 95 2 | 30 4 | 1.8 | 6.9 1.6 | 1306 | S | 173 | 0.00 | 23.83 | 0.140 0.009 | 491 15 | 0 0 |
| Wappo Hill Floor | 3/12/26 | 82.3 2.2 | 1649 | 37.9 2.6 | 0704 | 45.4 2.3 | 100 0 | 29 6 | 1.5 | 8.9 0.5 | 1543 | ESE | 110 | 0.00 | 23.28 | 0.142 0.010 | 464 14 | 90 20 |
| Stags Leap Dist (Chimney Rock) | 3/12/26 | 80.1 2.6 | 1653 | 38.4 2.1 | 0732 | 46.2 2.0 | 100 0 | 34 5 | 1.7 | 8.2 0.2 | 1323 | SSE | 166 | 0.00 | 22.51 | 0.129 0.009 | 435 13 | 0 0 |
| Yountville-South (Ranch 87) | 3/12/26 | 81.1 3.6 | 1623 | 39.5 2.3 | 0723 | 46.4 2.7 | 100 0 | 32 9 | 1.5 | 9.6 1.0 | 1518 | SSE | 149 | 0.00 | 23.66 | 0.124 0.008 | 399 18 | 100 10 |
| Yountville-SE (Ranch 85) | 3/12/26 | 81.5 1.2 | 1618 | 40.4 3.0 | 0709 | 46.0 1.8 | 100 0 | 31 5 | 1.1 | 10.6 2.9 | 1519 | SE | 131 | 0.00 | 22.19 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 3/12/26 | 81.7 2.0 | 1619 | 40.0 2.5 | 0720 | 44.6 2.1 | 95 0 | 27 4 | 1.3 | 11.1 3.2 | 1255 | E | 92 | 0.00 | 20.46 | 0.133 0.009 | 448 12 | 100 10 |
| Napa-NW (Ranch 54) | 3/12/26 | 81.3 3.5 | 1652 | 41.9 3.3 | 0719 | 45.3 2.7 | 100 0 | 30 8 | 1.4 | 8.8 0.2 | 1533 | SSE | 147 | 0.00 | 22.69 | - | 0 0 | 90 20 |
| Napa-North (Ranch 29) | 3/12/26 | 82.6 3.7 | 1540 | 41.3 2.8 | 0743 | 45.2 1.8 | 100 0 | 26 1 | 1.2 | 9.4 0.5 | 1605 | SSW | 195 | 0.00 | 20.32 | 0.101 0.004 | 307 6 | 0 0 |
| Max | 85.6 | - | 53.2 | - | 48.2 | 100 | 37 | 2.1 | 14.1 | - | - | 0.00 | 27.89 | 0.148 | 502 | - | |
| Avg | - | - | - | - | 44.9 | - | - | 1.5 | - | - | - | - | - | - | - | - | |
| Min | 78.4 | - | 37.9 | - | 40.1 | 61 | 9 | 1.0 | 6.9 | - | - | 0.00 | 19.96 | 0.101 | 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 | 3/12/26 | 77.3 5.5 | 1523 | 56.6 4.8 | 0535 | 37.7 1.3 | 57 0 | 13 7 | 1.6 | 6.4 1.5 | 1354 | SE | 129 | 0.00 | 29.29 | 0.136 0.020 | 430 74 | 0 0 |
| Mount George (Napa East) | 3/12/26 | 82.4 3.6 | 1803 | 40.8 1.4 | 0757 | 45.3 0.7 | 98 2 | 30 2 | 0.9 | 7.3 0.1 | 1411 | SSW | 192 | 0.00 | 11.88 | 0.137 0.006 | 484 14 | 0 0 |
| Napa-East (Palmaz 300') | 3/12/26 | 81.0 3.0 | 1628 | 43.9 4.9 | 0638 | 45.4 2.4 | 95 5 | 28 0 | 1.5 | 7.9 3.4 | 1434 | W | 279 | 0.00 | 18.31 | 0.124 0.003 | 424 4 | 80 20 |
| 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') | 3/12/26 | 74.9 2.9 | 1419 | 45.2 4.9 | 0737 | 43.3 2.2 | 86 0 | 31 1 | 2.8 | 11.7 1.5 | 2210 | W | 277 | 0.00 | 24.80 | 0.142 0.011 | 479 20 | 0 0 |
| Wooden Valley | 3/12/26 | 78.3 2.5 | 1654 | 38.5 2.0 | 0727 | 44.5 2.8 | 98 0 | 29 4 | 1.4 | 11.6 3.9 | 1546 | SW | 225 | 0.00 | 24.00 | 0.141 0.034 | 484 20 | 0 0 |
| Napa-West Upper (Truchard) | 3/12/26 | 80.5 3.4 | 1623 | 49.3 5.9 | 0708 | 45.6 0.2 | 80 6 | 28 2 | 2.0 | 10.8 0.0 | 1535 | SSW | 205 | 0.00 | 20.16 | 0.149 0.013 | 479 16 | 0 0 |
| Napa-West Lower (Truchard) | 3/12/26 | 81.7 2.6 | 1546 | 37.3 2.8 | 0706 | 44.5 1.3 | 100 0 | 30 1 | - | - | - | - | - | - | - | - | 80 20 |
| Napa-South (Toyon Farms) | 3/12/26 | 80.2 3.0 | 1640 | 45.5 3.9 | 0726 | 48.9 1.9 | 98 2 | 33 1 | 2.3 | 8.8 0.2 | 1549 | SSW | 208 | 0.00 | 13.94 | 0.080 0.006 | 233 6 | 50 20 |
| Toyon Remote 1 | 3/12/26 | 80.0 3.1 | 1622 | 38.3 3.3 | 0620 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 3/12/26 | 79.7 3.1 | 1559 | 39.4 2.9 | 0714 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 3/12/26 | 82.5 4.7 | 1626 | 38.5 3.4 | 0700 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 3/12/26 | 80.0 3.0 | 1612 | 41.2 3.1 | 0713 | 45.5 1.5 | 95 1 | 26 3 | 2.5 | 10.4 2.3 | 1647 | SW | 229 | 0.00 | 19.35 | 0.144 0.012 | 492 17 | 0 0 |
| Carneros (Saintsbury) | 3/12/26 | 79.0 3.3 | 1558 | 41.9 3.1 | 0732 | 45.7 1.8 | 96 4 | 31 1 | 2.2 | 13.0 3.3 | 1748 | WSW | 250 | 0.00 | 5.62 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 3/12/26 | 79.2 3.6 | 1641 | 42.7 3.3 | 0449 | 44.4 2.0 | - | - | 3.5 | 12.1 1.9 | 2155 | SSE | 165 | 0.00 | 18.31 | 0.140 0.013 | 453 11 | 0 0 |
| Suscol Mtn (Ranch 93) | 3/12/26 | 77.1 2.2 | 1652 | 54.3 7.4 | 0058 | 43.0 1.6 | 69 12 | 24 4 | 2.8 | 14.5 1.0 | 1705 | WNW | 296 | 0.00 | 13.80 | - | - | 0 0 |
| Suscol Upper (Ranch 92) | 3/12/26 | 77.4 1.9 | 1637 | 52.8 5.7 | 0719 | 43.8 2.0 | 76 6 | 24 3 | 0.9 | 11.5 2.3 | 1703 | SSW | 207 | 0.00 | 18.16 | - | - | 0 0 |
| Stanly (Ranch 45) | 3/12/26 | 81.5 1.8 | 1615 | 40.2 1.6 | 0714 | 45.1 1.8 | 97 2 | 26 3 | 2.7 | 11.1 0.9 | 1649 | WSW | 243 | 0.00 | 19.65 | 0.164 0.016 | 530 16 | 0 0 |
| Carneros Upper (Ranch 81) | 3/12/26 | 78.4 1.3 | 1550 | 49.2 3.8 | 0742 | 44.3 2.1 | - | - | 4.4 | 19.5 2.6 | 1756 | W | 275 | - | - | - | - | 0 0 |
| Carneros (Mitsuko) | 3/12/26 | 78.4 2.3 | 1603 | 36.5 2.2 | 0644 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 3/12/26 | 85.5 8.1 | 1536 | 41.2 2.6 | 0710 | 43.4 1.0 | 100 0 | 0 0 | 0.9 | 11.0 1.9 | 1718 | WNW | 298 | 0.00 | 16.94 | 0.107 0.003 | 365 8 | 0 0 |
| Carneros (Milton Rd) | 3/12/26 | 79.6 2.2 | 1614 | 40.3 3.1 | 0714 | 44.8 1.8 | 95 0 | 29 4 | - | - | - | - | 0.00 | 17.00 | - | - | 0 0 |
| Max | 85.5 | - | 56.6 | - | 48.9 | 100 | 33 | 4.4 | 19.5 | - | - | 0.00 | 29.29 | 0.164 | 530 | - | |
| Avg | - | - | - | - | 44.4 | - | - | 2.2 | - | - | - | - | - | - | - | - | |
| Min | 74.9 | - | 36.5 | - | 37.7 | 57 | 0 | 0.9 | 6.4 | - | - | 0.00 | 5.62 | 0.080 | 233 | - |