| 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 | 6/4/26 | 85.4 1.2 | 1746 | 48.7 0.1 | 0405 | - | - | - | - | - | - | - | 0.00 | 50.54 | - | - | 90 20 |
| Pope Valley (Weeks Lake) | 6/4/26 | 91.7 1.4 | 1656 | 45.0 1.8 | 0551 | 51.7 2.5 | 100 0 | 24 9 | 1.7 0.7 | 13.6 5.0 | 1347 | WSW | 242 | 0.00 | 26.64 | 0.228 0.011 | 647 5 | 20 10 |
| Dollarhide Base | 6/4/26 | 94.4 0.2 | 1528 | 52.1 0.2 | 0532 | 55.5 2.5 | 95 0 | 28 6 | 3.3 0.8 | 15.3 4.6 | 1352 | SW | 230 | 0.00 | 23.55 | 0.277 0.006 | 737 7 | 50 10 |
| Dollarhide 1AS Remote | 6/4/26 | 94.9 0.2 | 1629 | 45.2 3.8 | 0542 | 53.8 1.8 | 94 1 | 28 8 | 2.6 0.4 | 16.0 0.7 | 1700 | SW | 223 | - | - | - | - | 20 10 |
| Dollarhide 16A Remote | 6/4/26 | 93.7 1.6 | 1607 | 50.0 1.5 | 0532 | 55.2 2.5 | 98 3 | 29 7 | - | - | - | - | - | - | - | - | 20 10 |
| Dollarhide 18A Remote | 6/4/26 | 92.3 1.1 | 1522 | 43.4 3.3 | 0532 | 52.8 1.8 | 97 0 | 29 8 | - | - | - | - | - | - | - | - | 50 10 |
| Hardin Rd (Eakle) | 6/4/26 | 93.2 1.0 | 1440 | 48.3 2.4 | 0610 | - | - | - | - | - | - | - | - | - | - | - | 50 10 |
| Angwin | 6/4/26 | 82.7 0.5 | 1643 | 60.2 1.9 | 0204 | 47.1 4.4 | 58 4 | 30 11 | 4.2 1.8 | 16.8 0.5 | 0855 | NNW | 347 | 0.00 | 46.17 | 0.069 0.020 | 0 0 | 100 0 |
| Lower Angwin (Pioneer) | 6/4/26 | 84.9 0.1 | 1652 | 46.3 0.5 | 0441 | - | - | - | 2.5 0.5 | 12.9 1.3 | 1621 | WSW | 246 | - | - | - | - | 100 0 |
| Las Posadas (Cal Fire) | 6/4/26 | 86.7 0.9 | 1535 | 50.1 2.8 | 0556 | 52.0 3.6 | 92 5 | 30 9 | 7.2 2.1 | 20.5 3.7 | 1846 | SW | 220 | 0.00 | 35.41 | 0.261 0.011 | 638 2 | - |
| Deer Park | 6/4/26 | 90.1 1.4 | 1549 | 51.4 1.8 | 0627 | 52.6 3.9 | 93 3 | 26 9 | 3.2 1.5 | 13.3 8.8 | 1542 | NW | 323 | 0.00 | 29.37 | 0.193 0.027 | 500 1 | 60 10 |
| Lower Chiles Valley (Brown) | 6/4/26 | 88.5 0.6 | 1603 | 44.7 4.4 | 0418 | 52.1 2.6 | 100 0 | 29 7 | 3.7 0.5 | 15.1 2.3 | 1417 | WNW | 298 | 0.00 | 26.24 | 0.235 0.010 | 704 2 | 60 10 |
| Moss Creek Vineyard/Reservior | 6/4/26 | 93.6 0.1 | 1454 | 49.7 0.6 | 0600 | 52.2 3.4 | 94 1 | 24 7 | - | - | - | - | 0.00 | 27.15 | - | - | 0 0 |
| Max | 94.9 | - | 60.2 | - | 55.5 | 100 | 30 | 7.2 | 20.5 | - | - | 0.00 | 50.54 | 0.277 | 737 | - | |
| Avg | - | - | - | - | 52.5 | - | - | 3.5 | - | - | - | - | - | - | - | - | |
| Min | 82.7 | - | 43.4 | - | 47.1 | 58 | 24 | 1.7 | 12.9 | - | - | 0.00 | 23.55 | 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 | 5/31/26 | 88.7 6.1 | 1339 | 45.9 5.6 | 0544 | 52.8 1.2 | 97 1 | 32 5 | - | - | - | - | 0.00 | 32.79 | - | - | 30 10 |
| Diamond Mtn (Schramsberg) | 6/4/26 | 90.6 1.7 | 1656 | 53.4 3.5 | 0553 | 52.2 3.1 | 86 14 | 24 7 | - | - | - | - | 0.00 | 31.46 | - | - | 60 10 |
| Diamond Mtn (McEachran) | 6/4/26 | 89.3 0.8 | 1728 | 52.1 1.7 | 0607 | 52.1 4.0 | 92 3 | 25 9 | - | - | - | - | - | - | - | - | 50 10 |
| St. Helena-North | 6/4/26 | 95.0 0.2 | 1457 | 51.6 1.1 | 0610 | 51.4 4.8 | 87 1 | 20 8 | 2.0 | 9.6 9.2 | 1837 | SE | 143 | 0.00 | 31.48 | 0.196 0.010 | 552 4 | 20 10 |
| St. Helena (NVV Office) | 6/4/26 | 93.9 2.2 | 1617 | 53.4 1.9 | 0609 | - | - | - | 1.5 | 10.0 6.3 | 1731 | SE | 133 | 0.00 | 29.13 | - | - | 70 10 |
| Tiara Fria (East St. Helena) | 6/4/26 | 88.5 3.0 | 1523 | 51.6 0.1 | 0558 | 54.0 2.7 | 90 1 | 35 14 | 2.2 | 10.8 4.8 | 1544 | ESE | 122 | 0.00 | 27.01 | - | - | 40 10 |
| Rutherford Hill Estate | 6/4/26 | 89.3 3.4 | 1500 | 51.2 0.9 | 0550 | 53.7 1.9 | 100 6 | 34 11 | 1.4 | 12.7 0.7 | 1710 | S | 174 | 0.00 | 25.35 | 0.196 0.005 | 601 6 | 50 10 |
| Rutherford-North (Mee Ln) | 6/4/26 | 87.5 3.6 | 1557 | 46.6 0.4 | 0554 | 53.5 2.4 | 94 1 | 36 14 | 2.9 | 13.6 2.4 | 1514 | ESE | 112 | 0.00 | 24.87 | 0.217 0.005 | 628 10 | 20 10 |
| Rutherford (STS) | 6/4/26 | 89.9 0.3 | 1538 | 47.7 0.4 | 0456 | 55.7 2.1 | 91 1 | 40 12 | 2.0 | 11.8 1.4 | 1556 | SE | 124 | 0.00 | 26.10 | 0.235 0.004 | 723 3 | 80 10 |
| Oakville-NE (Ranch 88) | 6/4/26 | 88.4 3.8 | 1528 | 47.8 0.7 | 0558 | 52.4 2.2 | 91 1 | 33 12 | 2.1 | 14.2 0.0 | 1536 | SSE | 147 | 0.00 | 25.32 | 0.220 0.004 | 650 10 | 100 0 |
| OV561-East | 6/4/26 | 89.4 2.9 | 1637 | 49.7 0.3 | 0605 | - | - | - | - | - | - | - | - | - | - | - | 40 10 |
| Oakville | 6/4/26 | 84.8 6.1 | 1554 | 49.0 0.1 | 0604 | 53.6 2.0 | 96 0 | 38 16 | 3.6 | 16.1 1.1 | 1849 | SE | 143 | 0.00 | 26.11 | 0.234 0.004 | 708 0 | 80 20 |
| OV518-West | 6/4/26 | 84.9 6.3 | 1515 | 50.0 0.8 | 0620 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| To Kalon Remote (TKKE) | 6/4/26 | 89.5 2.8 | 1532 | 48.2 0.1 | 0604 | - | - | - | - | - | - | - | - | - | - | - | 70 10 |
| To Kalon | 6/4/26 | 85.5 5.9 | 1439 | 48.8 0.8 | 0608 | 54.5 2.4 | 96 0 | 40 17 | 3.4 | 14.7 1.9 | 1615 | SE | 140 | 0.00 | 28.00 | 0.223 0.009 | 649 14 | 50 20 |
| To Kalon Remote (TKN5) | 6/4/26 | 89.2 2.7 | 1546 | 48.6 0.1 | 0607 | - | - | - | - | - | - | - | - | - | - | - | 70 10 |
| Yountville (Ranch 67) | 6/4/26 | 83.1 4.9 | 1418 | 48.9 1.9 | 0600 | 52.3 1.7 | 94 1 | 38 13 | 3.4 | 14.8 2.3 | 1516 | SE | 138 | 0.00 | 24.03 | 0.232 0.006 | 732 4 | 80 20 |
| Stags Leap Dist (Silverado Vineyards) | 6/4/26 | 83.4 5.0 | 1538 | 49.4 2.1 | 0611 | 52.8 1.9 | 94 1 | 38 14 | 3.1 | 16.1 3.1 | 1653 | SSE | 150 | 0.00 | 28.04 | 0.230 0.010 | 694 1 | 40 10 |
| Borreo (Soda Canyon) | 6/4/26 | 82.7 3.6 | 1553 | 46.6 2.8 | 0555 | 51.1 1.7 | 98 1 | 35 11 | 1.8 | 11.6 2.2 | 1337 | SSW | 198 | 0.00 | 27.74 | 0.224 0.000 | 726 6 | 20 10 |
| Wappo Hill Floor | 6/4/26 | 85.2 5.4 | 1550 | 47.9 3.5 | 0620 | 53.6 2.2 | 100 0 | 39 14 | 2.7 | 13.7 2.1 | 1351 | ESE | 110 | 0.00 | 27.12 | 0.227 0.001 | 706 2 | 80 20 |
| Stags Leap Dist (Chimney Rock) | 6/4/26 | 84.0 4.0 | 1456 | 48.6 2.9 | 0422 | 55.0 2.0 | 98 0 | 43 12 | 2.7 | 13.2 0.3 | 1523 | SE | 128 | 0.00 | 26.50 | 0.202 0.001 | 626 1 | 30 20 |
| Yountville-South (Ranch 87) | 6/4/26 | 86.1 2.6 | 1528 | 49.1 1.7 | 0554 | 54.1 1.8 | 100 0 | 39 11 | 1.6 | 10.5 0.4 | 1547 | ESE | 119 | 0.00 | 27.76 | 0.222 0.003 | 708 0 | 80 10 |
| Yountville-SE (Ranch 85) | 6/4/26 | 83.4 5.2 | 1451 | 49.2 1.8 | 0525 | 54.2 2.1 | 96 1 | 41 14 | 2.8 | 12.6 1.6 | 1730 | S | 171 | 0.00 | 26.09 | - | 0 0 | 50 20 |
| Oak Knoll-East (Ranch 53) | 6/4/26 | 82.7 7.8 | 1517 | 49.7 2.5 | 0557 | 53.0 2.1 | 92 1 | 39 17 | 2.8 | 14.9 4.3 | 1518 | SE | 145 | 0.00 | 24.76 | 0.229 0.007 | 726 2 | 80 20 |
| Napa-NW (Ranch 54) | 6/4/26 | 89.1 4.5 | 1532 | 49.2 1.6 | 0429 | 53.0 2.0 | 93 0 | 32 12 | 0.7 | 6.1 5.4 | 1251 | SE | 136 | 0.00 | 27.13 | - | 0 0 | 80 10 |
| Napa-North (Ranch 29) | 6/4/26 | 81.9 7.3 | 1629 | 51.8 4.1 | 0559 | 54.0 1.7 | 100 0 | 40 15 | 1.9 | 12.2 0.3 | 1555 | S | 176 | 0.00 | 25.63 | 0.148 0.000 | 430 5 | 60 20 |
| Max | 95.0 | - | 53.4 | - | 55.7 | 100 | 43 | 3.6 | 16.1 | - | - | 0.00 | 31.48 | 0.235 | 732 | - | |
| Avg | - | - | - | - | 53.3 | - | - | 2.3 | - | - | - | - | - | - | - | - | |
| Min | 81.9 | - | 46.6 | - | 51.1 | 86 | 20 | 0.7 | 6.1 | - | - | 0.00 | 24.03 | 0.148 | 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 | 6/4/26 | 85.8 0.2 | 1452 | 53.6 2.4 | 0556 | 52.1 2.0 | 84 6 | 34 12 | 1.2 | 10.3 2.2 | 1342 | SSE | 150 | 0.00 | 34.60 | 0.197 0.040 | 627 183 | 100 10 |
| Mount George (Napa East) | 6/4/26 | 86.7 0.2 | 1804 | 50.3 3.5 | 0400 | 54.4 2.5 | 96 2 | 37 11 | 1.5 | 11.8 1.1 | 1449 | W | 267 | 0.00 | 17.28 | 0.213 0.000 | 693 6 | 20 20 |
| Napa-East (Palmaz 300') | 6/4/26 | 88.0 1.7 | 1626 | 50.4 2.3 | 0346 | 53.0 1.7 | 100 5 | 31 8 | 2.0 | 10.3 1.8 | 1434 | SSW | 207 | 0.00 | 23.52 | 0.191 0.002 | 569 4 | 0 10 |
| Napa-East (Palmaz 1200') | 5/29/26 | 65.2 1.9 | 1609 | 48.2 1.2 | 2345 | 45.6 0.6 | 100 0 | 29 23 | 2.1 | 13.0 3.9 | 1512 | NW | 320 | - | - | 0.146 0.006 | 558 22 | 20 10 |
| Napa-East (Palmaz 1400') | 6/4/26 | 80.0 1.3 | 1553 | 49.2 2.2 | 0525 | 52.6 1.7 | 100 0 | 40 9 | 2.6 | 12.5 1.5 | 1429 | SW | 233 | 0.00 | 31.03 | 0.208 0.001 | 686 2 | 80 20 |
| Wooden Valley | 6/4/26 | 83.7 1.5 | 1539 | 54.8 2.1 | 0510 | 51.4 1.9 | 81 0 | 32 5 | 3.8 | 17.9 1.8 | 0423 | WSW | 239 | 0.00 | 29.46 | 0.232 0.001 | 702 0 | 90 20 |
| Napa-West Upper (Truchard) | 6/4/26 | 83.3 6.3 | 1537 | 48.8 2.1 | 0603 | 38.1 13.9 | 100 0 | 0 0 | 3.4 | 15.0 0.3 | 1319 | S | 180 | 0.00 | 24.70 | 0.230 0.002 | 703 2 | 60 20 |
| Napa-West Lower (Truchard) | 6/4/26 | 83.2 8.3 | 1537 | 42.8 1.5 | 0554 | 51.6 2.1 | 100 0 | 40 17 | - | - | - | - | - | - | - | - | 40 20 |
| Napa-South (Toyon Farms) | 6/4/26 | 81.0 6.5 | 1549 | 50.1 2.3 | 0516 | 55.7 2.1 | 100 0 | 49 18 | 3.4 | 15.5 0.3 | 1340 | S | 179 | 0.00 | 18.70 | 0.120 0.008 | 342 12 | 70 20 |
| Toyon Remote 1 | 6/4/26 | 81.0 10.3 | 1503 | 43.0 2.7 | 0532 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 6/4/26 | 80.6 6.4 | 1519 | 45.7 2.8 | 0540 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 6/4/26 | 82.0 8.9 | 1513 | 45.3 1.8 | 0524 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 6/4/26 | 83.8 4.1 | 1514 | 46.3 0.3 | 0544 | 52.5 2.5 | 97 1 | 39 15 | 2.3 | 13.0 3.4 | 1239 | SE | 145 | 0.00 | 23.81 | 0.217 0.000 | 704 10 | 70 20 |
| Carneros (Saintsbury) | 6/4/26 | 80.8 6.7 | 1542 | 46.0 1.6 | 0545 | 53.3 2.6 | 100 0 | 44 19 | 4.1 | 15.9 3.5 | 1417 | SSE | 164 | 0.00 | 8.94 | - | - | 50 20 |
| Suscol Lower (Ranch 35) | 6/4/26 | 81.4 4.7 | 1606 | 50.2 3.7 | 0545 | 52.3 1.6 | - | - | 4.2 | 14.2 2.0 | 1723 | SSE | 168 | 0.00 | 23.25 | 0.209 0.002 | 631 26 | 80 20 |
| Suscol Mtn (Ranch 93) | 6/4/26 | 86.2 0.4 | 1547 | 52.3 3.7 | 0542 | 53.7 1.8 | 98 0 | 35 10 | 3.2 | 13.4 2.3 | 1209 | NW | 315 | 0.00 | 19.27 | - | - | 60 20 |
| Suscol Upper (Ranch 92) | 6/4/26 | 80.9 2.1 | 1559 | 52.9 3.6 | 0416 | 38.3 6.2 | 100 0 | 3 0 | 0.0 | 9.8 6.3 | 1231 | SW | 216 | 0.00 | 22.76 | - | - | 80 20 |
| Stanly (Ranch 45) | 6/4/26 | 79.2 8.0 | 1421 | 48.3 3.8 | 0551 | 53.2 3.0 | 94 1 | 42 20 | 5.0 | 15.1 4.9 | 1537 | S | 186 | 0.00 | 22.51 | 0.237 0.007 | 764 17 | 70 20 |
| Carneros Upper (Ranch 81) | 6/4/26 | 84.9 1.3 | 1534 | 51.4 2.8 | 0609 | 52.3 20.7 | - | - | 3.8 | 16.8 11.0 | 1631 | SW | 217 | - | - | - | - | 50 20 |
| Carneros (Mitsuko) | 6/4/26 | 81.6 6.4 | 1526 | 43.6 2.0 | 0456 | - | - | - | - | - | - | - | - | - | - | - | 50 20 |
| Carneros Lower (Ranch 81) | 6/4/26 | 85.5 4.9 | 1514 | 47.1 0.7 | 0534 | 52.7 7.4 | 100 0 | 0 0 | 2.0 | 13.9 0.8 | 1345 | SSE | 161 | 0.00 | 19.55 | 0.198 0.003 | 631 3 | 80 20 |
| Carneros (Milton Rd) | 6/4/26 | 79.3 9.1 | 1518 | 46.9 3.2 | 0606 | 52.9 2.9 | 95 0 | 43 19 | - | - | - | - | 0.00 | 18.07 | - | - | 50 20 |
| Max | 88.0 | - | 54.8 | - | 55.7 | 100 | 49 | 5.0 | 17.9 | - | - | 0.00 | 34.60 | 0.237 | 764 | - | |
| Avg | - | - | - | - | 51.2 | - | - | 2.8 | - | - | - | - | - | - | - | - | |
| Min | 79.2 | - | 42.8 | - | 38.1 | 81 | 0 | 0.0 | 9.8 | - | - | 0.00 | 8.94 | 0.120 | 342 | - |