| 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 | 8/29/26 | 83.8 2.5 | 1626 | 48.5 2.0 | 0523 | - | - | - | - | - | - | - | 0.00 | 0.00 | - | - | 50 20 |
| Pope Valley (Weeks Lake) | 8/29/26 | 87.0 2.2 | 1635 | 39.5 6.9 | 0620 | 46.1 0.4 | 100 7 | 19 9 | 1.7 0.4 | 12.5 2.2 | 1540 | SE | 143 | 0.00 | 0.00 | 0.183 0.090 | 543 313 | 10 10 |
| Dollarhide Base | 8/29/26 | 89.8 3.7 | 1610 | 49.0 10.6 | 0604 | 52.6 2.4 | 98 19 | 28 5 | 2.9 0.7 | 14.8 3.0 | 1416 | SW | 223 | 0.00 | 0.00 | 0.213 0.108 | 596 362 | 10 10 |
| Dollarhide 1AS Remote | 8/29/26 | 90.8 3.6 | 1536 | 40.8 10.1 | 0634 | 49.7 1.0 | 92 3 | 27 7 | 2.8 0.7 | 16.9 3.4 | 1359 | SSE | 157 | - | - | - | - | 10 10 |
| Dollarhide 16A Remote | 8/29/26 | 88.2 4.3 | 1603 | 46.7 7.4 | 0606 | 51.8 1.8 | 98 10 | 31 7 | - | - | - | - | - | - | - | - | 10 10 |
| Dollarhide 18A Remote | 8/29/26 | 95.1 4.4 | 1130 | 38.4 8.0 | 0635 | 48.8 0.1 | 98 7 | 23 3 | - | - | - | - | - | - | - | - | 10 10 |
| Hardin Rd (Eakle) | 8/29/26 | 88.7 5.2 | 1535 | 44.7 10.6 | 0630 | - | - | - | - | - | - | - | - | - | - | - | 10 10 |
| Angwin | 8/29/26 | 80.0 4.7 | 1531 | 60.8 1.1 | 0542 | 41.6 6.5 | 53 8 | 24 18 | 2.7 0.5 | 13.4 0.0 | 1619 | S | 178 | 0.00 | 0.00 | 0.052 0.002 | 0 0 | 100 0 |
| Lower Angwin (Pioneer) | 8/29/26 | 80.5 5.5 | 1559 | 40.2 1.2 | 0653 | - | - | - | 1.8 0.2 | 11.5 0.1 | 1545 | WSW | 245 | - | - | - | - | 90 20 |
| Las Posadas (Cal Fire) | 8/29/26 | 82.7 6.9 | 1458 | 47.4 9.1 | 0649 | 51.0 0.1 | 100 11 | 32 3 | 8.1 0.8 | 18.3 4.7 | 2114 | SW | 226 | 0.00 | 0.00 | 0.206 0.094 | 541 344 | - |
| Deer Park | 8/29/26 | 86.2 10.1 | 1532 | 52.7 5.1 | 0541 | 53.1 0.8 | 97 9 | 30 8 | 3.1 0.6 | 13.7 3.0 | 1618 | SSE | 165 | 0.00 | 0.00 | 0.147 0.072 | 380 219 | 40 20 |
| Lower Chiles Valley (Brown) | 8/29/26 | 84.7 8.8 | 1538 | 45.9 10.0 | 0637 | 50.7 0.6 | 100 10 | 25 8 | 3.2 0.2 | 13.3 2.8 | 1315 | W | 271 | 0.01 | 0.01 | 0.180 0.094 | 569 382 | 40 20 |
| Moss Creek Vineyard/Reservior | 8/29/26 | 90.2 3.2 | 1428 | 46.6 9.4 | 0656 | 49.3 6.5 | 97 11 | 20 12 | - | - | - | - | 0.00 | 0.00 | - | - | 10 10 |
| Max | 95.1 | - | 60.8 | - | 53.1 | 100 | 32 | 8.1 | 18.3 | - | - | 0.01 | 0.01 | 0.213 | 596 | - | |
| Avg | - | - | - | - | 49.5 | - | - | 3.3 | - | - | - | - | - | - | - | - | |
| Min | 80.0 | - | 38.4 | - | 41.6 | 53 | 19 | 1.7 | 11.5 | - | - | 0.00 | 0.00 | 0.052 | 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 | 8/29/26 | 90.3 7.5 | 1533 | 45.3 6.9 | 0631 | 52.2 1.2 | 98 4 | 26 10 | - | - | - | - | 0.00 | 0.00 | - | - | 10 10 |
| Diamond Mtn (Schramsberg) | 8/29/26 | 85.6 11.0 | 1518 | 52.7 6.0 | 0541 | 52.1 1.6 | 100 15 | 19 23 | - | - | - | - | 0.00 | 0.00 | - | - | 40 20 |
| Diamond Mtn (McEachran) | 8/29/26 | 87.6 10.3 | 1651 | 52.2 4.8 | 0508 | 51.4 0.2 | 96 16 | 17 25 | - | - | - | - | - | - | - | - | 10 10 |
| St. Helena-North | 8/29/26 | 87.7 12.1 | 1604 | 50.4 3.5 | 0432 | 50.4 0.3 | 90 7 | 26 16 | 3.1 | 13.4 2.2 | 1656 | ESE | 113 | 0.00 | 0.00 | 0.177 0.082 | 486 266 | 10 10 |
| St. Helena (NVV Office) | 8/29/26 | 85.8 9.5 | 1615 | 50.0 4.7 | 0354 | - | - | - | 1.4 | 10.1 2.6 | 1744 | E | 93 | 0.00 | 0.00 | - | - | 10 10 |
| Tiara Fria (East St. Helena) | 8/29/26 | 84.1 10.6 | 1511 | 47.1 4.4 | 0524 | 51.9 1.4 | 96 7 | 36 14 | 1.9 | 12.9 5.0 | 1628 | SE | 125 | 0.00 | 0.00 | - | - | 40 20 |
| Prisoner Winery | 8/29/26 | 88.5 11.2 | 1540 | 46.7 4.5 | 0438 | 52.8 1.1 | 98 3 | 32 13 | 1.4 | 9.3 4.1 | 1815 | SE | 142 | 0.00 | 0.00 | 0.027 0.015 | 0 0 | 10 10 |
| Rutherford Hill Estate | 8/29/26 | 85.1 10.1 | 1504 | 53.1 4.7 | 0449 | 54.2 0.7 | 100 10 | 34 15 | 1.7 | 14.0 5.5 | 1810 | S | 185 | 0.00 | 0.00 | 0.148 0.086 | 466 285 | 40 20 |
| Rutherford-North (Mee Ln) | 8/29/26 | 84.0 10.7 | 1525 | 43.7 5.1 | 0424 | 51.2 2.1 | 95 5 | 37 12 | 3.0 | 16.0 6.4 | 1525 | ESE | 116 | 0.00 | 0.00 | 0.155 0.084 | 435 262 | 40 20 |
| Rutherford (STS) | 8/29/26 | 86.0 11.0 | 1457 | 44.7 4.5 | 0320 | 53.8 2.0 | 92 0 | 42 13 | 2.1 | 14.5 5.1 | 1543 | E | 99 | 0.00 | 0.00 | 0.171 0.101 | 523 324 | 40 20 |
| Oakville-NE (Ranch 88) | 8/29/26 | 84.0 9.5 | 1443 | 44.4 4.9 | 0352 | 50.6 1.3 | 100 15 | 34 12 | 2.4 | 17.6 6.4 | 1549 | S | 170 | 0.00 | 0.00 | 0.161 0.094 | 454 283 | 100 0 |
| OV561-East | 8/29/26 | 84.1 7.7 | 1534 | 46.9 4.8 | 0310 | - | - | - | - | - | - | - | - | - | - | - | 40 20 |
| Oakville | 8/29/26 | 81.1 8.7 | 1516 | 44.9 4.7 | 0313 | 51.8 1.3 | 95 6 | 40 10 | 3.3 | 20.4 5.4 | 1535 | SSE | 147 | 0.00 | 0.00 | 0.172 0.094 | 510 316 | 80 20 |
| OV518-West | 8/29/26 | 81.2 8.2 | 1440 | 46.0 5.2 | 0347 | - | - | - | - | - | - | - | - | - | - | - | 80 20 |
| To Kalon Remote (TKKE) | 8/29/26 | 84.5 10.5 | 1513 | 46.2 4.1 | 0332 | - | - | - | - | - | - | - | - | - | - | - | 40 20 |
| To Kalon | 8/29/26 | 82.2 9.5 | 1534 | 46.9 4.5 | 0409 | 53.5 0.8 | 98 5 | 39 14 | 3.2 | 18.2 7.6 | 1608 | ESE | 110 | 0.00 | 0.00 | 0.165 0.096 | 474 316 | 70 20 |
| To Kalon Remote (TKN5) | 8/29/26 | 83.7 8.5 | 1439 | 46.8 4.3 | 0329 | - | - | - | - | - | - | - | - | - | - | - | 40 20 |
| Yountville (Ranch 67) | 8/29/26 | 80.3 7.4 | 1513 | 45.2 5.1 | 0314 | 51.0 1.3 | 93 4 | 40 8 | 3.2 | 18.0 0.3 | 1538 | ESE | 122 | 0.00 | 0.00 | 0.176 0.079 | 583 294 | 80 20 |
| Stags Leap Dist (Silverado Vineyards) | 8/29/26 | 80.6 6.9 | 1504 | 45.5 4.9 | 0338 | 51.2 1.4 | 94 3 | 39 8 | 2.3 | 18.2 3.8 | 1531 | SSE | 147 | 0.00 | 0.00 | 0.159 0.075 | 491 288 | 60 10 |
| Borreo (Soda Canyon) | 8/29/26 | 78.3 7.2 | 1448 | 46.9 5.1 | 0514 | 51.1 0.5 | 97 4 | 41 10 | 1.9 | 11.3 2.2 | 1536 | SSE | 164 | 0.00 | 0.00 | 0.159 0.087 | 536 320 | 60 10 |
| Wappo Hill Floor | 8/29/26 | 81.8 7.3 | 1454 | 44.2 6.7 | 0329 | 52.5 1.3 | 100 0 | 41 5 | 2.8 | 16.3 5.7 | 1802 | SE | 146 | 0.00 | 0.00 | 0.168 0.089 | 514 304 | 100 10 |
| Stags Leap Dist (Chimney Rock) | 8/29/26 | 80.2 7.6 | 1509 | 45.2 4.8 | 0416 | 53.6 1.7 | 98 5 | 49 6 | 2.7 | 14.2 1.5 | 1632 | ESE | 120 | 0.00 | 0.00 | 0.147 0.076 | 462 271 | 80 20 |
| Yountville-South (Ranch 87) | 8/29/26 | 83.1 6.8 | 1704 | 45.4 5.6 | 0427 | 52.8 1.5 | 100 0 | 32 14 | 1.8 | 12.7 4.9 | 1519 | S | 184 | 0.00 | 0.00 | 0.161 0.090 | 515 313 | 40 20 |
| Yountville-SE (Ranch 85) | 8/29/26 | 79.6 7.7 | 1501 | 46.0 6.2 | 0346 | 53.2 1.3 | 100 7 | 44 7 | 2.9 | 13.7 3.2 | 1745 | S | 171 | 0.00 | 0.00 | - | 0 0 | 80 20 |
| Oak Knoll-East (Ranch 53) | 8/29/26 | 81.0 8.2 | 1633 | 47.0 5.1 | 0334 | 52.1 1.5 | 94 5 | 37 11 | 2.1 | 14.5 3.9 | 1457 | SE | 133 | 0.00 | 0.00 | 0.162 0.087 | 517 307 | 100 10 |
| Napa-NW (Ranch 54) | 8/29/26 | 84.3 7.8 | 1629 | 47.3 5.4 | 0406 | 52.3 1.2 | 95 6 | 29 16 | 0.7 | 9.8 4.7 | 1646 | SW | 218 | 0.00 | 0.00 | - | 0 0 | 100 10 |
| Napa-North (Ranch 29) | 8/29/26 | 77.6 5.4 | 1631 | 46.7 6.2 | 0433 | 53.5 0.9 | 100 0 | 46 8 | 1.8 | 14.2 3.2 | 1657 | S | 182 | 0.00 | 0.00 | 0.115 0.065 | 348 215 | 90 20 |
| Max | 90.3 | - | 53.1 | - | 54.2 | 100 | 49 | 3.3 | 20.4 | - | - | 0.00 | 0.00 | 0.177 | 583 | - | |
| Avg | - | - | - | - | 52.2 | - | - | 2.3 | - | - | - | - | - | - | - | - | |
| Min | 77.6 | - | 43.7 | - | 50.4 | 90 | 17 | 0.7 | 9.3 | - | - | 0.00 | 0.00 | 0.027 | 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 | 8/29/26 | 80.3 5.6 | 1357 | 54.5 3.8 | 0648 | 50.0 2.3 | 88 16 | 34 15 | 1.8 | 13.1 3.9 | 1457 | SSE | 153 | 0.00 | 0.00 | 0.163 0.093 | 547 303 | 100 0 |
| Mount George (Napa East) | 8/29/26 | 77.4 6.9 | 1454 | 44.6 9.7 | 0622 | 51.3 1.9 | 97 4 | 42 13 | 1.4 | 9.7 0.3 | 1520 | W | 261 | 0.00 | 0.00 | 0.150 0.083 | 508 300 | 80 20 |
| Napa-East (Palmaz 300') | 8/29/26 | 82.5 7.4 | 1524 | 47.6 7.5 | 0610 | 52.5 1.3 | 100 9 | 37 13 | 1.6 | 10.4 2.1 | 1613 | WNW | 295 | 0.00 | 0.00 | 0.145 0.089 | 445 266 | 50 20 |
| Napa-East (Palmaz 1200') | 7/3/26 | 79.0 6.0 | 1616 | 49.0 3.8 | 0539 | 47.1 0.2 | 100 0 | 45 38 | 2.0 | 12.7 4.5 | 1533 | NW | 313 | - | - | 0.192 0.009 | 656 3 | 30 20 |
| Napa-East (Palmaz 1400') | 8/29/26 | 75.6 5.2 | 1425 | 47.7 6.9 | 0601 | 52.2 0.0 | 100 4 | 47 10 | 3.0 | 13.6 2.4 | 1651 | S | 185 | 0.00 | 0.03 | 0.155 0.081 | 542 317 | 90 20 |
| Wooden Valley | 8/29/26 | 81.3 7.8 | 1456 | 49.8 10.5 | 0612 | 50.6 1.5 | 93 21 | 36 2 | 4.2 | 15.0 0.1 | 1439 | WSW | 253 | 0.00 | 0.00 | 0.190 0.092 | 593 365 | 40 20 |
| Napa-West Upper (Truchard) | 8/29/26 | 81.1 6.8 | 1621 | 52.7 4.7 | 0622 | 19.0 35.2 | 100 0 | 0 47 | 2.6 | 16.6 3.6 | 1422 | S | 170 | 0.00 | 0.00 | 0.171 0.097 | 517 316 | 80 20 |
| Napa-West Lower (Truchard) | 8/29/26 | 80.5 6.4 | 1632 | 43.2 4.2 | 0411 | 51.1 1.2 | 94 5 | 38 10 | - | - | - | - | - | - | - | - | 80 20 |
| Napa-South (Toyon Farms) | 8/29/26 | 78.8 6.3 | 1621 | 50.6 4.6 | 0422 | 55.8 0.4 | 100 4 | 50 7 | 2.8 | 16.0 4.0 | 1646 | SSW | 198 | 0.00 | 0.00 | 0.100 0.055 | 287 174 | 80 20 |
| Toyon Remote 1 | 8/29/26 | 78.8 6.0 | 1620 | 45.7 4.0 | 0421 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 8/29/26 | 77.8 5.4 | 1622 | 44.4 4.8 | 0437 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 8/29/26 | 80.3 6.8 | 1619 | 44.0 5.2 | 0436 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 8/29/26 | 80.2 6.4 | 1611 | 47.4 3.2 | 0358 | 52.5 0.4 | 96 4 | 38 8 | 2.4 | 16.7 5.6 | 1523 | SE | 137 | 0.00 | 0.00 | 0.157 0.084 | 519 315 | 80 20 |
| Carneros (Saintsbury) | 8/29/26 | 78.0 5.6 | 1614 | 43.3 7.2 | 0456 | 51.3 2.1 | 100 5 | 41 10 | 3.9 | 18.0 2.4 | 1501 | SSE | 158 | 0.00 | 0.00 | - | - | 100 10 |
| Suscol Lower (Ranch 35) | 8/29/26 | 77.4 7.0 | 1520 | 48.8 7.6 | 0534 | 53.0 1.0 | 100 9 | 42 9 | 4.3 | 17.8 3.3 | 1648 | SSW | 198 | 0.00 | 0.00 | 0.150 0.073 | 453 260 | 90 20 |
| Suscol Mtn (Ranch 93) | 8/29/26 | 78.6 9.9 | 1624 | 52.4 2.9 | 0420 | 53.4 0.7 | 100 4 | 44 16 | 4.2 | 19.1 1.8 | 1708 | WNW | 288 | 0.00 | 0.00 | - | - | 90 20 |
| Suscol Upper (Ranch 92) | 8/29/26 | 77.0 8.0 | 1504 | 52.4 3.7 | 0427 | 11.5 42.6 | 100 0 | 0 0 | 2.6 | 15.9 0.0 | 1754 | SW | 224 | 0.00 | 0.00 | - | - | 60 10 |
| Stanly (Ranch 45) | 8/29/26 | 75.5 4.5 | 1441 | 44.5 9.5 | 0525 | 52.3 2.0 | 96 6 | 48 4 | 4.8 | 18.0 2.6 | 1745 | SSW | 202 | 0.00 | 0.00 | 0.173 0.092 | 553 340 | 100 20 |
| Carneros Upper (Ranch 81) | 8/29/26 | 78.3 4.1 | 1716 | 51.8 4.8 | 0612 | 32.7 20.3 | - | - | 5.0 | 21.3 2.0 | 1632 | SSW | 199 | - | - | - | - | 80 20 |
| Carneros (Mitsuko) | 8/29/26 | 79.6 6.9 | 1604 | 41.3 5.5 | 0500 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| Carneros Lower (Ranch 81) | 8/29/26 | 79.9 2.5 | 1547 | 46.8 3.9 | 0456 | 42.4 11.4 | 100 10 | 0 44 | 1.8 | 15.0 5.4 | 1726 | SSE | 164 | 0.00 | 0.00 | 0.027 0.020 | 1 1 | 80 20 |
| Carneros (Milton Rd) | 8/29/26 | 75.6 3.6 | 1425 | 44.0 5.5 | 0418 | 51.5 1.8 | 94 5 | 47 2 | - | - | - | - | 0.00 | 0.00 | - | - | 100 10 |
| Max | 82.5 | - | 54.5 | - | 55.8 | 100 | 50 | 5.0 | 21.3 | - | - | 0.00 | 0.03 | 0.190 | 593 | - | |
| Avg | - | - | - | - | 46.1 | - | - | 3.1 | - | - | - | - | - | - | - | - | |
| Min | 75.5 | - | 41.3 | - | 11.5 | 88 | 0 | 1.4 | 9.7 | - | - | 0.00 | 0.00 | 0.027 | 1 | - |