| 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 | 9/27/26 | 74.2 2.4 | 1437 | 47.5 1.3 | 0014 | - | - | - | - | - | - | - | 0.00 | 0.82 | - | - | 80 10 |
| Pope Valley (Weeks Lake) | 9/27/26 | 81.8 0.0 | 1448 | 43.1 5.8 | 0059 | 47.2 5.9 | 93 7 | 29 15 | 1.7 0.8 | 15.6 6.8 | 1450 | WSW | 253 | 0.00 | 0.03 | 0.117 0.017 | 359 50 | 100 20 |
| Dollarhide Base | 9/27/26 | 81.2 5.0 | 1405 | 52.0 5.7 | 0059 | 51.4 4.6 | 85 12 | 39 21 | 3.1 1.1 | 15.4 3.7 | 1554 | SSW | 205 | 0.00 | 0.00 | 0.130 0.001 | 373 11 | 60 20 |
| Dollarhide 1AS Remote | 9/27/26 | 81.9 3.2 | 1423 | 46.9 8.0 | 0055 | 50.7 7.0 | 87 2 | 37 20 | 2.6 1.2 | 16.3 5.2 | 1649 | SSW | 206 | - | - | - | - | 60 20 |
| Dollarhide 16A Remote | 9/27/26 | 81.0 3.4 | 1405 | 51.2 6.9 | 0059 | 51.3 5.0 | 86 10 | 39 22 | - | - | - | - | - | - | - | - | 90 20 |
| Dollarhide 18A Remote | 9/27/26 | 79.8 3.4 | 1455 | 43.6 6.7 | 0045 | 49.5 6.3 | 93 2 | 38 20 | - | - | - | - | - | - | - | - | 100 20 |
| Hardin Rd (Eakle) | 9/27/26 | 81.4 2.7 | 1447 | 48.8 7.1 | 0051 | - | - | - | - | - | - | - | - | - | - | - | 100 20 |
| Angwin | 9/27/26 | 72.3 2.0 | 1448 | 51.6 2.4 | 0549 | 44.0 4.4 | 84 17 | 38 19 | 2.4 0.8 | 11.2 0.7 | 1323 | SE | 142 | 0.00 | 0.30 | 0.034 0.014 | 0 0 | 70 10 |
| Lower Angwin (Pioneer) | 9/27/26 | 73.8 2.6 | 1437 | 38.6 0.7 | 0023 | - | - | - | 1.6 0.0 | 12.9 2.8 | 1611 | WSW | 247 | - | - | - | - | 80 10 |
| Las Posadas (Cal Fire) | 9/27/26 | 74.8 2.9 | 1544 | 46.9 0.9 | 0049 | 49.5 5.3 | 93 1 | 44 30 | 8.0 2.2 | 20.3 4.8 | 1623 | S | 187 | 0.00 | 0.23 | 0.130 0.013 | 362 6 | - |
| Deer Park | 9/27/26 | 78.5 3.2 | 1428 | 50.1 1.5 | 0048 | 50.4 3.2 | 91 6 | 39 22 | 3.3 1.0 | 14.4 2.0 | 1534 | SSE | 160 | 0.00 | 0.04 | 0.105 0.008 | 284 29 | 60 10 |
| Lower Chiles Valley (Brown) | 9/27/26 | 76.7 3.0 | 1441 | 50.1 9.9 | 0037 | 49.6 4.5 | 91 9 | 36 17 | 3.1 0.8 | 15.3 2.5 | 1429 | W | 269 | 0.00 | 0.14 | 0.127 0.001 | 410 21 | 60 20 |
| Moss Creek Vineyard/Reservior | 9/27/26 | 81.1 4.4 | 1325 | 50.5 6.3 | 0043 | 48.1 4.1 | 87 6 | 32 11 | - | - | - | - | 0.00 | 0.04 | - | - | 70 20 |
| Max | 81.9 | - | 52.0 | - | 51.4 | 93 | 44 | 8.0 | 20.3 | - | - | 0.00 | 0.82 | 0.130 | 410 | - | |
| Avg | - | - | - | - | 49.2 | - | - | 3.2 | - | - | - | - | - | - | - | - | |
| Min | 72.3 | - | 38.6 | - | 44.0 | 84 | 29 | 1.6 | 11.2 | - | - | 0.00 | 0.00 | 0.034 | 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 | 9/27/26 | 81.3 0.1 | 1420 | 47.2 4.7 | 0059 | 51.3 3.4 | 93 3 | 36 9 | - | - | - | - | 0.00 | 0.09 | - | - | 100 10 |
| Diamond Mtn (Schramsberg) | 9/27/26 | 77.8 1.1 | 1515 | 50.2 0.8 | 0048 | 49.1 2.6 | 91 9 | 33 11 | - | - | - | - | 0.00 | 0.13 | - | - | 80 10 |
| Diamond Mtn (McEachran) | 9/27/26 | 78.3 2.2 | 1431 | 50.7 1.8 | 0046 | 49.9 3.7 | 88 2 | 32 12 | - | - | - | - | - | - | - | - | 100 20 |
| St. Helena-North | 9/27/26 | 80.7 2.2 | 1541 | 49.2 4.0 | 0059 | 48.3 4.1 | 84 4 | 28 16 | 2.2 | 13.8 4.4 | 1738 | SSE | 148 | 0.00 | 0.11 | 0.125 0.028 | 376 76 | 50 20 |
| St. Helena (NVV Office) | 9/27/26 | 78.2 4.7 | 1625 | 50.1 3.9 | 0050 | - | - | - | 1.3 | 10.0 2.8 | 1130 | E | 80 | 0.00 | 0.04 | - | - | 60 20 |
| Tiara Fria (East St. Helena) | 9/27/26 | 76.2 6.3 | 1435 | 47.2 2.9 | 0059 | 50.3 3.6 | 87 2 | 44 22 | 2.1 | 13.3 4.8 | 1534 | E | 100 | 0.00 | 0.02 | - | - | 10 10 |
| Prisoner Winery | 9/27/26 | 80.5 3.9 | 1436 | 46.8 3.2 | 0055 | 50.2 2.5 | 95 0 | 37 14 | 1.4 | 10.5 1.5 | 1139 | E | 88 | 0.00 | 0.06 | 0.023 0.005 | 0 0 | 40 20 |
| Rutherford Hill Estate | 9/27/26 | 77.9 5.7 | 1421 | 50.4 0.9 | 0058 | 50.9 2.0 | 92 1 | 41 17 | 1.4 | 18.4 6.8 | 1652 | SSW | 207 | 0.00 | 0.08 | 0.106 0.002 | 352 9 | 60 20 |
| Rutherford-North (Mee Ln) | 9/27/26 | 76.8 6.1 | 1444 | 44.4 2.6 | 0058 | 49.8 2.8 | 90 0 | 42 17 | 3.1 | 17.1 5.9 | 1649 | SE | 129 | 0.00 | 0.06 | 0.124 0.008 | 364 32 | 90 20 |
| Rutherford (STS) | 9/27/26 | 79.8 5.7 | 1410 | 45.3 3.4 | 0026 | 52.4 2.6 | 93 0 | 46 15 | 2.2 | 14.3 3.1 | 1308 | ESE | 123 | 0.00 | 0.05 | 0.132 0.012 | 431 54 | 90 20 |
| Oakville-NE (Ranch 88) | 9/27/26 | 77.6 5.7 | 1424 | 44.9 3.8 | 0059 | 48.9 3.8 | 84 0 | 40 17 | 2.4 | 16.7 5.2 | 1510 | SSE | 162 | 0.00 | 0.04 | 0.123 0.015 | 367 48 | 100 0 |
| OV561-East | 9/27/26 | 77.1 6.6 | 1558 | 47.7 4.4 | 0059 | - | - | - | - | - | - | - | - | - | - | - | 60 20 |
| Oakville | 9/27/26 | 75.0 5.6 | 1448 | 45.7 3.7 | 0101 | 50.2 3.4 | 89 1 | 44 20 | 3.6 | 19.9 7.5 | 1507 | ESE | 120 | 0.00 | 0.03 | 0.130 0.007 | 403 41 | 70 10 |
| OV518-West | 9/27/26 | 74.9 4.8 | 1446 | 46.6 3.5 | 0059 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| To Kalon Remote (TKKE) | 9/27/26 | 77.4 5.9 | 1405 | 45.6 2.9 | 0059 | - | - | - | - | - | - | - | - | - | - | - | 90 20 |
| To Kalon | 9/27/26 | 76.1 4.8 | 1433 | 46.5 2.9 | 0052 | 50.6 2.2 | 92 1 | 44 17 | 3.3 | 15.1 2.2 | 1449 | SE | 137 | 0.00 | 0.00 | 0.128 0.010 | 402 53 | 70 10 |
| To Kalon Remote (TKN5) | 9/27/26 | 78.4 4.1 | 1434 | 46.4 3.0 | 0059 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| Yountville (Ranch 67) | 9/27/26 | 73.6 5.8 | 1437 | 46.0 4.1 | 0059 | 49.7 3.3 | 88 3 | 45 19 | 3.7 | 15.9 2.6 | 2041 | SSE | 161 | 0.00 | 0.05 | 0.128 0.009 | 429 12 | 70 10 |
| Stags Leap Dist (Silverado Vineyards) | 9/27/26 | 73.6 6.3 | 1437 | 45.8 3.7 | 0059 | 50.1 3.1 | 88 3 | 44 17 | 3.1 | 16.8 4.6 | 1514 | SSE | 168 | 0.00 | 0.07 | 0.123 0.007 | 391 6 | 80 20 |
| Borreo (Soda Canyon) | 9/27/26 | 71.8 6.4 | 1445 | 45.8 1.6 | 0049 | 49.5 1.8 | 92 3 | 47 15 | 1.9 | 11.4 3.2 | 1832 | S | 175 | 0.00 | 0.31 | 0.108 0.011 | 378 23 | 60 10 |
| Wappo Hill Floor | 9/27/26 | 74.8 6.7 | 1414 | 46.7 4.7 | 0055 | 51.0 3.3 | 91 1 | 42 14 | 3.0 | 13.7 2.2 | 1501 | SE | 135 | 0.00 | 0.10 | 0.124 0.010 | 398 14 | 80 10 |
| Stags Leap Dist (Chimney Rock) | 9/27/26 | 74.8 4.5 | 1416 | 47.2 6.4 | 0101 | 52.9 2.8 | 94 4 | 50 11 | 3.0 | 12.9 1.8 | 1442 | SSW | 199 | 0.00 | 0.10 | 0.110 0.008 | 364 8 | 80 10 |
| Yountville-South (Ranch 87) | 9/27/26 | 75.8 6.5 | 1429 | 46.7 3.9 | 0057 | 51.2 2.3 | 95 5 | 43 14 | 1.8 | 12.4 2.0 | 1528 | S | 169 | 0.00 | 0.09 | 0.107 0.011 | 352 17 | 100 0 |
| Yountville-SE (Ranch 85) | 9/27/26 | 73.2 6.6 | 1410 | 47.0 4.1 | 0056 | 51.8 2.7 | 93 0 | 46 15 | 2.6 | 13.7 2.4 | 1652 | SSE | 165 | 0.00 | 0.08 | - | 0 0 | 80 10 |
| Oak Knoll-East (Ranch 53) | 9/27/26 | 73.8 6.1 | 1508 | 46.0 2.4 | 0052 | 50.3 2.0 | 89 1 | 40 10 | 2.2 | 14.4 3.6 | 1437 | SW | 217 | 0.00 | 0.15 | 0.123 0.008 | 416 2 | 100 10 |
| Napa-NW (Ranch 54) | 9/27/26 | 75.4 5.7 | 1602 | 47.5 2.6 | 0049 | 49.9 1.4 | 90 0 | 39 10 | 0.6 | 10.4 2.8 | 1426 | SW | 224 | 0.00 | 0.18 | - | 0 0 | 100 0 |
| Napa-North (Ranch 29) | 9/27/26 | 73.4 5.2 | 1358 | 49.3 4.8 | 0052 | 51.6 1.7 | 90 10 | 43 9 | 1.7 | 13.5 3.1 | 1422 | S | 188 | 0.00 | 0.10 | 0.087 0.006 | 275 1 | 50 10 |
| Max | 81.3 | - | 50.7 | - | 52.9 | 95 | 50 | 3.7 | 19.9 | - | - | 0.00 | 0.31 | 0.132 | 431 | - | |
| Avg | - | - | - | - | 50.4 | - | - | 2.3 | - | - | - | - | - | - | - | - | |
| Min | 71.8 | - | 44.4 | - | 48.3 | 84 | 28 | 0.6 | 10.0 | - | - | 0.00 | 0.00 | 0.023 | 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 | 9/27/26 | 72.6 2.3 | 1356 | 51.1 0.8 | 0031 | 48.3 2.3 | 92 9 | 44 8 | 1.7 | 12.9 3.6 | 1534 | SSE | 167 | 0.00 | 0.45 | 0.186 0.027 | 864 77 | 70 10 |
| Mount George (Napa East) | 9/27/26 | 75.4 2.6 | 1440 | 46.6 0.7 | 0101 | 51.5 2.4 | 92 3 | 48 21 | 1.6 | 10.6 1.8 | 1529 | WSW | 253 | 0.00 | 0.16 | 0.113 0.016 | 394 55 | 80 10 |
| Napa-East (Palmaz 300') | 9/27/26 | 75.8 4.6 | 1431 | 49.2 2.0 | 0059 | 51.0 1.3 | 93 1 | 42 17 | 1.3 | 12.1 2.8 | 1446 | WSW | 249 | 0.00 | 0.16 | 0.106 0.014 | 357 32 | 70 10 |
| Napa-East (Palmaz 1200') | 9/14/26 | 80.8 4.1 | 1344 | 47.1 4.1 | 0557 | 46.5 1.6 | 92 8 | 29 22 | 2.4 | 12.0 0.9 | 1614 | SW | 226 | - | - | 0.153 0.004 | 498 20 | 20 20 |
| Napa-East (Palmaz 1400') | 9/27/26 | 70.1 4.2 | 1415 | 48.4 0.3 | 0059 | 50.8 1.2 | 100 0 | 53 25 | 3.0 | 13.4 2.3 | 1523 | SW | 231 | 0.00 | 0.33 | 0.106 0.019 | 401 46 | 50 10 |
| Wooden Valley | 9/27/26 | 73.3 5.9 | 1455 | 52.9 5.0 | 0058 | 49.1 2.2 | 86 7 | 45 24 | 4.0 | 14.0 2.3 | 1136 | SSW | 212 | 0.00 | 0.04 | 0.123 0.019 | 411 42 | 80 10 |
| Napa-West Upper (Truchard) | 9/27/26 | 73.8 6.3 | 1501 | 48.6 2.0 | 0058 | 49.8 0.8 | 100 0 | 0 29 | 3.1 | 15.6 3.6 | 1554 | SSE | 163 | 0.00 | 0.10 | 0.492 0.142 | - | 70 10 |
| Napa-West Lower (Truchard) | 9/27/26 | 73.8 6.0 | 1350 | 42.0 1.0 | 0101 | 49.0 1.4 | 89 4 | 41 11 | - | - | - | - | - | - | - | - | 70 10 |
| Napa-South (Toyon Farms) | 9/27/26 | 71.5 6.7 | 1531 | 49.0 1.1 | 0047 | 52.9 0.2 | 96 2 | 53 10 | 3.7 | 16.2 4.5 | 1603 | SSE | 165 | 0.00 | 0.07 | 0.072 0.006 | 218 1 | 30 10 |
| Toyon Remote 1 | 9/27/26 | 72.5 5.2 | 1531 | 45.2 1.2 | 0057 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 9/27/26 | 71.5 5.3 | 1534 | 46.4 2.8 | 0057 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 9/27/26 | 73.1 4.3 | 1700 | 44.9 0.1 | 0056 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 9/27/26 | 73.0 4.7 | 1601 | 47.1 0.7 | 0058 | 49.9 1.0 | 92 0 | 41 7 | 2.4 | 15.4 4.5 | 1409 | SE | 145 | 0.00 | 0.08 | 0.119 0.004 | 413 8 | 80 10 |
| Carneros (Saintsbury) | 9/27/26 | 71.2 5.0 | 1659 | 46.1 0.5 | 0101 | 50.0 1.1 | 93 4 | 45 8 | 4.5 | 18.0 3.9 | 1551 | SSE | 162 | 0.00 | 0.08 | - | - | 30 10 |
| Suscol Lower (Ranch 35) | 9/27/26 | 71.9 3.7 | 1420 | 48.1 2.1 | 0059 | 50.7 0.4 | 92 8 | 44 7 | 4.3 | 17.0 5.3 | 1512 | S | 188 | 0.00 | 0.15 | 0.109 0.011 | 345 30 | 30 10 |
| Suscol Mtn (Ranch 93) | 9/27/26 | 74.3 3.8 | 1429 | 49.9 3.5 | 0059 | 51.7 0.2 | 95 2 | 49 17 | 4.7 | 18.3 0.2 | 1719 | NW | 311 | 0.00 | 0.40 | - | - | 20 10 |
| Suscol Upper (Ranch 92) | 9/27/26 | 69.6 5.7 | 1530 | 50.6 3.1 | 0059 | 50.8 18.1 | 100 0 | 0 0 | 3.4 | 16.7 6.0 | 1542 | SW | 218 | 0.00 | 0.15 | - | - | 0 0 |
| Stanly (Ranch 45) | 9/27/26 | 71.6 2.9 | 1700 | 46.7 3.0 | 0011 | 50.3 0.3 | 93 3 | 45 2 | 3.7 | 17.9 6.8 | 1453 | SSW | 200 | 0.00 | 0.15 | 0.120 0.009 | 404 19 | 40 10 |
| Carneros Upper (Ranch 81) | 9/27/26 | 72.1 5.1 | 1559 | 51.1 2.0 | 0029 | 50.6 0.6 | - | - | 7.0 | 25.8 5.9 | 1845 | WSW | 251 | - | - | - | - | 30 10 |
| Carneros (Mitsuko) | 9/27/26 | 71.5 4.9 | 1651 | 43.7 1.6 | 0101 | - | - | - | - | - | - | - | - | - | - | - | 30 10 |
| Carneros Lower (Ranch 81) | 9/27/26 | 72.6 3.9 | 1604 | 50.6 5.6 | 0039 | 51.1 2.0 | 92 8 | 45 45 | 1.3 | 14.2 3.4 | 1419 | SSE | 148 | 0.00 | 0.01 | 0.020 0.001 | 11 6 | 30 10 |
| Carneros (Milton Rd) | 9/27/26 | 71.0 3.7 | 1656 | 43.8 0.4 | 0006 | 49.2 0.7 | 91 1 | 45 4 | - | - | - | - | 0.00 | 0.00 | - | - | 30 10 |
| Max | 75.8 | - | 52.9 | - | 52.9 | 100 | 53 | 7.0 | 25.8 | - | - | 0.00 | 0.45 | 0.492 | 864 | - | |
| Avg | - | - | - | - | 50.4 | - | - | 3.3 | - | - | - | - | - | - | - | - | |
| Min | 69.6 | - | 42.0 | - | 48.3 | 86 | 0 | 1.3 | 10.6 | - | - | 0.00 | 0.00 | 0.020 | 11 | - |