| 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 | 5/10/26 | 82.8 0.1 | 1255 | 50.1 0.8 | 0539 | - | - | - | - | - | - | - | 0.00 | 50.09 | - | - | 80 20 |
| Pope Valley (Weeks Lake) | 5/10/26 | 87.0 1.0 | 1600 | 45.5 1.2 | 0553 | 54.0 0.0 | 100 0 | 29 3 | 1.4 | 11.4 0.7 | 1451 | W | 261 | 0.00 | 26.24 | 0.200 0.004 | 620 14 | 80 10 |
| Dollarhide Base | 5/10/26 | 88.7 0.6 | 1348 | 50.3 1.0 | 0543 | 58.0 0.7 | 99 0 | 37 2 | 2.6 | 12.7 5.7 | 1423 | SSW | 202 | 0.00 | 23.14 | 0.231 0.010 | 704 15 | 80 10 |
| Dollarhide 1AS Remote | 5/10/26 | 88.9 1.6 | 1318 | 47.0 0.8 | 0605 | 56.8 0.7 | 94 0 | 39 2 | 2.0 | 13.7 3.9 | 1426 | SW | 217 | - | - | - | - | 80 10 |
| Dollarhide 18A Remote | 5/10/26 | 87.1 0.9 | 1343 | 43.7 1.6 | 0603 | 55.9 0.1 | 100 0 | 39 1 | - | - | - | - | - | - | - | - | 60 10 |
| Angwin | 5/10/26 | 77.3 0.2 | 1516 | 63.5 3.4 | 0524 | 50.1 1.5 | 63 9 | 27 9 | 2.9 | 11.2 1.6 | 1522 | SSE | 155 | 0.00 | 45.11 | 0.045 0.002 | 0 0 | 40 20 |
| Lower Angwin (Pioneer) | 5/10/26 | 78.8 1.0 | 1255 | 44.3 3.5 | 0448 | - | - | - | 1.7 | 11.0 5.3 | 1516 | WSW | 249 | - | - | - | - | 80 20 |
| Deer Park | 5/10/26 | 80.8 4.7 | 1535 | 50.5 0.8 | 0405 | 54.6 1.4 | 99 4 | 46 11 | 3.0 | 11.6 0.5 | 1621 | SSE | 148 | 0.00 | 28.72 | 0.137 0.024 | 411 42 | 80 20 |
| Lower Chiles Valley (Brown) | 5/10/26 | 81.4 1.6 | 1733 | 50.4 2.6 | 0658 | 55.0 1.6 | 100 0 | 45 5 | 3.9 | 13.8 1.9 | 1512 | NW | 321 | 0.00 | 25.87 | 0.186 0.016 | 648 9 | 90 20 |
| Moss Creek Vineyard/Reservior | 5/10/26 | 91.0 3.4 | 1418 | 49.9 0.5 | 0650 | 55.6 1.2 | 100 0 | 26 6 | - | - | - | - | 0.00 | 27.05 | - | - | 30 10 |
| Max | 91.0 | - | 63.5 | - | 58.0 | 100 | 46 | 3.9 | 13.8 | - | - | 0.00 | 50.09 | 0.231 | 704 | - | |
| Avg | - | - | - | - | 55.0 | - | - | 2.5 | - | - | - | - | - | - | - | - | |
| Min | 77.3 | - | 43.7 | - | 50.1 | 63 | 26 | 1.4 | 11.0 | - | - | 0.00 | 23.14 | 0.045 | 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 | 5/10/26 | 88.1 1.0 | 1546 | 49.1 0.8 | 0437 | 56.5 1.4 | 98 0 | 41 4 | - | - | - | - | 0.00 | 32.79 | - | - | 40 10 |
| Diamond Mtn (Schramsberg) | 5/10/26 | 83.0 2.1 | 1624 | 50.3 0.2 | 0544 | 55.4 1.5 | 100 0 | 44 10 | - | - | - | - | 0.00 | 31.20 | - | - | 80 20 |
| Diamond Mtn (McEachran) | 5/10/26 | 82.5 1.9 | 1615 | 51.3 1.1 | 0407 | 55.5 1.9 | 99 2 | 48 12 | - | - | - | - | - | - | - | - | 80 20 |
| St. Helena-North | 5/10/26 | 81.6 6.4 | 1514 | 50.4 1.3 | 0339 | 53.5 1.6 | 89 2 | 43 14 | 3.2 | 11.8 0.0 | 1802 | SE | 144 | 0.00 | 31.03 | 0.165 0.016 | 501 38 | 100 10 |
| St. Helena (NVV Office) | 5/10/26 | 83.1 5.6 | 1644 | 53.1 3.4 | 0318 | - | - | - | 1.5 | 9.1 0.5 | 1543 | E | 82 | 0.00 | 28.47 | - | - | 100 10 |
| Tiara Fria (East St. Helena) | 5/10/26 | 79.6 3.9 | 1659 | 52.4 2.4 | 0309 | 54.3 0.9 | 95 1 | 48 4 | 2.7 | 10.4 2.2 | 1803 | ESE | 120 | 0.00 | 26.44 | - | - | 100 10 |
| Rutherford Hill Estate | 5/10/26 | 80.1 3.3 | 1638 | 51.2 1.0 | 0610 | 54.5 0.8 | 100 0 | 49 4 | 1.5 | 9.9 3.1 | 1739 | SSW | 202 | 0.00 | 25.00 | 0.155 0.018 | 532 35 | 100 10 |
| Rutherford-North (Mee Ln) | 5/10/26 | 78.4 3.9 | 1635 | 46.1 1.5 | 0333 | 53.0 0.4 | 96 0 | 51 5 | 3.0 | 12.9 3.1 | 1710 | ESE | 114 | 0.00 | 24.52 | 0.158 0.031 | 513 66 | 100 0 |
| Rutherford (STS) | 5/10/26 | 79.7 4.1 | 1503 | 47.2 0.3 | 0340 | 54.3 0.0 | 90 0 | 54 3 | 2.3 | 14.0 0.1 | 1155 | ESE | 112 | 0.00 | 25.82 | 0.177 0.031 | 593 78 | 100 0 |
| Oakville-NE (Ranch 88) | 5/10/26 | 78.4 4.1 | 1549 | 47.2 0.7 | 0352 | 52.5 0.7 | 96 3 | 47 4 | 2.4 | 13.8 1.3 | 1541 | SW | 217 | 0.00 | 24.92 | 0.168 0.025 | 548 54 | 0 0 |
| OV561-East | 5/10/26 | 80.3 2.5 | 1557 | 49.2 1.3 | 0347 | - | - | - | - | - | - | - | - | - | - | - | 70 20 |
| Oakville | 5/10/26 | 76.1 3.9 | 1514 | 48.3 0.9 | 0352 | 53.4 1.1 | 97 0 | 52 6 | 3.2 | 14.7 2.8 | 1723 | SSE | 165 | 0.00 | 25.51 | 0.170 0.030 | 581 60 | 40 20 |
| OV518-West | 5/10/26 | 76.3 4.2 | 1628 | 49.0 0.9 | 0344 | - | - | - | - | - | - | - | - | - | - | - | 50 20 |
| To Kalon Remote (TKKE) | 5/10/26 | 79.7 4.1 | 1630 | 47.6 0.6 | 0345 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| To Kalon | 5/10/26 | 76.5 4.1 | 1631 | 48.1 0.7 | 0347 | 54.2 0.8 | 98 2 | 55 8 | 3.3 | 14.0 1.3 | 1700 | SE | 142 | 0.00 | 27.70 | 0.158 0.031 | 519 66 | 70 20 |
| To Kalon Remote (TKN5) | 5/10/26 | 80.1 4.5 | 1534 | 47.9 0.4 | 0320 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| Yountville (Ranch 67) | 5/10/26 | 74.7 4.4 | 1624 | 49.4 2.5 | 0328 | 52.6 1.2 | 96 0 | 52 7 | 4.0 | 13.9 2.2 | 1424 | S | 170 | 0.00 | 23.62 | 0.173 0.021 | 606 49 | 10 10 |
| Stags Leap Dist (Silverado Vineyards) | 5/10/26 | 74.3 4.6 | 1541 | 48.1 1.3 | 0324 | 52.6 1.0 | 95 1 | 53 8 | 3.6 | 15.3 1.0 | 1644 | S | 170 | 0.00 | 27.62 | 0.160 0.027 | 532 59 | 20 20 |
| Borreo (Soda Canyon) | 5/10/26 | 74.0 2.5 | 1653 | 46.9 1.5 | 0231 | 52.1 1.0 | 98 0 | 54 7 | 1.5 | 9.1 1.4 | 1547 | E | 97 | 0.00 | 27.52 | 0.162 0.020 | 583 44 | 20 20 |
| Wappo Hill Floor | 5/10/26 | 76.1 3.8 | 1625 | 49.4 4.5 | 0317 | 53.7 1.4 | 100 0 | 54 10 | 3.0 | 12.7 1.1 | 1331 | SE | 131 | 0.00 | 26.75 | 0.166 0.025 | 570 44 | 60 20 |
| Stags Leap Dist (Chimney Rock) | 5/10/26 | 75.4 3.5 | 1543 | 49.6 3.9 | 0253 | 55.0 1.3 | 98 2 | 60 10 | 3.1 | 12.4 1.8 | 1450 | SSE | 151 | 0.00 | 26.14 | 0.146 0.024 | 507 40 | 10 10 |
| Yountville-South (Ranch 87) | 5/10/26 | 76.8 3.4 | 1559 | 48.9 1.2 | 0326 | 54.2 0.9 | 100 0 | 52 8 | 2.4 | 12.0 0.4 | 1546 | ESE | 122 | 0.00 | 27.39 | 0.164 0.025 | 566 60 | 100 0 |
| Yountville-SE (Ranch 85) | 5/10/26 | 75.0 4.0 | 1626 | 50.9 2.9 | 0306 | 54.0 0.9 | 97 3 | 55 9 | 2.5 | 11.8 1.8 | 1355 | SSE | 162 | 0.00 | 25.69 | - | 0 0 | 10 10 |
| Oak Knoll-East (Ranch 53) | 5/10/26 | 74.6 5.8 | 1621 | 49.7 2.0 | 0248 | 53.0 0.9 | 95 1 | 54 11 | 2.4 | 12.9 0.7 | 1551 | SE | 126 | 0.00 | 24.30 | 0.163 0.029 | 572 70 | 60 20 |
| Napa-NW (Ranch 54) | 5/10/26 | 78.4 5.6 | 1630 | 48.6 0.2 | 0323 | 53.6 0.7 | 100 0 | 49 8 | 0.6 | 8.2 1.0 | 1313 | SSW | 193 | 0.00 | 26.77 | - | 0 0 | 100 0 |
| Napa-North (Ranch 29) | 5/10/26 | 75.1 3.3 | 1558 | 51.5 2.7 | 0247 | 54.1 1.0 | 100 0 | 54 8 | 1.8 | 13.3 0.0 | 1326 | SW | 219 | 0.00 | 25.18 | 0.125 0.003 | 425 26 | 10 10 |
| Max | 88.1 | - | 53.1 | - | 56.5 | 100 | 60 | 4.0 | 15.3 | - | - | 0.00 | 32.79 | 0.177 | 606 | - | |
| Avg | - | - | - | - | 53.9 | - | - | 2.5 | - | - | - | - | - | - | - | - | |
| Min | 74.0 | - | 46.1 | - | 52.1 | 89 | 41 | 0.6 | 8.2 | - | - | 0.00 | 23.62 | 0.125 | 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 | 5/10/26 | 77.2 4.6 | 1526 | 49.6 3.0 | 0735 | 54.4 0.9 | 96 4 | 53 14 | 1.3 | 7.9 2.0 | 1243 | SE | 143 | 0.00 | 34.19 | 0.310 0.020 | 1,295 5 | 10 10 |
| Mount George (Napa East) | 5/10/26 | 78.1 1.2 | 1657 | 52.9 0.6 | 0143 | 55.8 0.3 | 97 1 | 58 9 | 1.6 | 9.6 1.5 | 1534 | W | 278 | 0.00 | 17.04 | 0.157 0.023 | 546 62 | 40 20 |
| Napa-East (Palmaz 300') | 5/10/26 | 76.1 2.3 | 1612 | 50.8 0.8 | 0132 | 53.4 0.4 | 100 0 | 53 6 | 2.0 | 10.4 0.8 | 1321 | W | 263 | 0.00 | 23.29 | 0.150 0.008 | 520 2 | 10 10 |
| Napa-East (Palmaz 1200') | 5/10/26 | 72.3 0.9 | 1633 | 47.2 1.7 | 0207 | 46.4 1.7 | 100 0 | 5 2 | 2.0 | 9.9 2.1 | 1512 | NW | 319 | - | - | 0.160 0.014 | 607 32 | 0 0 |
| Napa-East (Palmaz 1400') | 5/10/26 | 71.4 2.3 | 1649 | 47.9 0.5 | 0518 | 53.1 0.4 | 100 0 | 62 5 | 2.9 | 10.3 2.3 | 1341 | SW | 228 | 0.00 | 30.80 | 0.159 0.017 | 611 29 | 0 0 |
| Wooden Valley | 5/10/26 | 76.0 1.5 | 1625 | 50.5 1.2 | 0555 | 52.8 0.7 | 91 1 | 53 5 | 4.3 | 13.8 2.6 | 0117 | SSW | 208 | 0.00 | 29.11 | 0.192 0.011 | 688 17 | 50 20 |
| Napa-West Upper (Truchard) | 5/10/26 | 73.4 5.9 | 1557 | 49.5 0.3 | 0628 | -1.6 35.8 | 100 0 | 0 0 | 3.6 | 15.4 1.8 | 1548 | S | 184 | 0.00 | 24.41 | 0.166 0.020 | 556 43 | 10 10 |
| Napa-West Lower (Truchard) | 5/10/26 | 74.9 6.1 | 1523 | 45.3 2.2 | 0200 | 52.4 1.8 | 100 0 | 54 12 | - | - | - | - | - | - | - | - | 90 10 |
| Napa-South (Toyon Farms) | 5/10/26 | 71.4 6.6 | 1600 | 49.6 0.2 | 0228 | 55.0 0.6 | 100 0 | 67 13 | 2.5 | 13.2 1.2 | 1642 | SSE | 160 | 0.00 | 18.34 | 0.086 0.012 | 316 2 | 0 0 |
| Toyon Remote 1 | 5/10/26 | 73.1 7.6 | 1519 | 42.5 0.4 | 0139 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 5/10/26 | 71.5 7.1 | 1532 | 47.3 1.9 | 0139 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 5/10/26 | 73.3 7.9 | 1559 | 47.0 1.0 | 0158 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 5/10/26 | 73.3 6.1 | 1611 | 51.0 2.7 | 0207 | 52.7 1.1 | 96 0 | 55 10 | 2.2 | 13.7 0.4 | 1306 | SE | 146 | 0.00 | 23.58 | 0.154 0.024 | 559 55 | 30 10 |
| Carneros (Saintsbury) | 5/10/26 | 71.6 6.8 | 1548 | 48.7 2.7 | 0152 | 52.5 0.9 | 100 0 | 58 12 | 4.0 | 15.8 1.3 | 1413 | S | 171 | 0.00 | 8.68 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 5/10/26 | 73.2 2.5 | 1621 | 50.3 1.5 | 0257 | 52.8 0.5 | - | - | 3.4 | 13.5 2.9 | 1414 | SSW | 212 | 0.00 | 22.84 | 0.142 0.024 | 507 36 | 0 0 |
| Suscol Mtn (Ranch 93) | 5/10/26 | 73.5 3.3 | 1549 | 48.6 1.2 | 0442 | 53.0 0.3 | 100 1 | 58 5 | 5.0 | 14.2 1.1 | 1501 | WNW | 292 | 0.00 | 18.60 | - | - | 0 0 |
| Suscol Upper (Ranch 92) | 5/10/26 | 71.7 2.0 | 1616 | 49.2 1.2 | 0446 | 41.1 5.8 | 100 0 | 3 0 | 1.3 | 11.9 1.8 | 1439 | SW | 227 | 0.00 | 22.35 | - | - | 0 0 |
| Stanly (Ranch 45) | 5/10/26 | 72.2 5.6 | 1604 | 46.7 1.0 | 0234 | 51.9 0.4 | 95 1 | 55 11 | 4.3 | 12.8 4.3 | 1624 | SW | 224 | 0.00 | 22.49 | 0.169 0.028 | 616 46 | 0 0 |
| Carneros Upper (Ranch 81) | 5/10/26 | 73.1 4.3 | 1514 | 50.6 0.5 | 0616 | 17.3 34.3 | - | - | 4.5 | 13.9 7.9 | 1627 | SSW | 198 | - | - | - | - | 0 0 |
| Carneros (Mitsuko) | 5/10/26 | 72.2 6.2 | 1527 | 45.9 2.6 | 0101 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 5/10/26 | 71.1 9.9 | 1529 | 50.8 4.1 | 0212 | 53.4 3.6 | 100 0 | 63 63 | 1.7 | 12.1 0.4 | 1319 | SSE | 159 | 0.01 | 19.42 | 0.138 0.020 | 492 52 | 10 10 |
| Carneros (Milton Rd) | 5/10/26 | 70.8 6.1 | 1551 | 45.3 0.2 | 0240 | 52.9 1.2 | 95 0 | 61 13 | - | - | - | - | 0.00 | 18.07 | - | - | 0 0 |
| Max | 78.1 | - | 52.9 | - | 55.8 | 100 | 67 | 5.0 | 15.8 | - | - | 0.01 | 34.19 | 0.310 | 1,295 | - | |
| Avg | - | - | - | - | 47.2 | - | - | 2.9 | - | - | - | - | - | - | - | - | |
| Min | 70.8 | - | 42.5 | - | -1.6 | 91 | 0 | 1.3 | 7.9 | - | - | 0.00 | 8.68 | 0.086 | 316 | - |