| 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 | 9/28/26 | 83.2 9.0 | 1549 | 45.9 1.6 | 0338 | - | - | - | - | - | - | - | 0.00 | 0.82 | - | - | 100 20 |
| Pope Valley (Weeks Lake) | 9/28/26 | 87.4 5.6 | 1433 | 37.7 5.4 | 0706 | 42.4 4.8 | 100 7 | 15 14 | 1.5 0.2 | 19.3 3.7 | 1444 | S | 175 | 0.00 | 0.03 | 0.139 0.022 | 425 66 | 90 10 |
| Dollarhide Base | 9/28/26 | 88.9 7.7 | 1329 | 45.5 6.5 | 0718 | 47.8 3.6 | 98 13 | 22 16 | 2.6 0.6 | 16.4 1.0 | 1451 | SW | 224 | 0.00 | 0.00 | 0.160 0.030 | 444 71 | 50 10 |
| Dollarhide 1AS Remote | 9/28/26 | 88.0 6.1 | 1329 | 39.1 7.7 | 0657 | 44.6 6.1 | 92 4 | 23 14 | 1.8 0.8 | 16.5 0.2 | 1331 | SW | 223 | - | - | - | - | 50 10 |
| Dollarhide 16A Remote | 9/28/26 | 87.9 6.9 | 1408 | 44.5 6.7 | 0715 | 47.4 3.8 | 98 11 | 24 15 | - | - | - | - | - | - | - | - | 80 10 |
| Dollarhide 18A Remote | 9/28/26 | 87.4 7.6 | 1328 | 37.1 6.5 | 0653 | 43.9 5.6 | 97 4 | 22 16 | - | - | - | - | - | - | - | - | 100 0 |
| Hardin Rd (Eakle) | 9/28/26 | 86.3 4.9 | 1404 | 41.5 7.4 | 0718 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| Angwin | 9/28/26 | 76.2 4.0 | 1653 | 55.6 3.9 | 0110 | 39.0 5.0 | 55 29 | 23 15 | 4.1 1.7 | 12.8 1.6 | 1520 | SE | 124 | 0.00 | 0.30 | 0.066 0.032 | 0 0 | 90 20 |
| Lower Angwin (Pioneer) | 9/28/26 | 78.4 4.6 | 1625 | 39.2 0.6 | 0125 | - | - | - | 2.0 0.4 | 12.1 0.8 | 1428 | WNW | 290 | - | - | - | - | 100 20 |
| Las Posadas (Cal Fire) | 9/28/26 | 80.4 5.6 | 1521 | 44.1 2.8 | 0701 | 45.1 4.4 | 97 4 | 26 18 | 5.6 2.4 | 20.4 0.1 | 1329 | SW | 232 | 0.00 | 0.23 | 0.168 0.038 | 435 72 | - |
| Deer Park | 9/28/26 | 85.6 7.1 | 1535 | 47.7 2.5 | 0438 | 47.3 3.1 | 98 7 | 21 18 | 2.4 0.9 | 13.2 1.2 | 1721 | WNW | 296 | 0.00 | 0.04 | 0.116 0.011 | 312 28 | 80 20 |
| Lower Chiles Valley (Brown) | 9/28/26 | 82.6 5.9 | 1655 | 40.1 10.0 | 0626 | 45.4 4.2 | 100 9 | 25 12 | 2.7 0.4 | 13.3 2.0 | 1347 | W | 281 | 0.00 | 0.14 | 0.146 0.019 | 476 66 | 80 20 |
| Moss Creek Vineyard/Reservior | 9/28/26 | 87.4 6.3 | 1535 | 44.4 6.0 | 0629 | 44.7 3.5 | 95 8 | 19 12 | - | - | - | - | 0.00 | 0.04 | - | - | 60 10 |
| Max | 88.9 | - | 55.6 | - | 47.8 | 100 | 26 | 5.6 | 20.4 | - | - | 0.00 | 0.82 | 0.168 | 476 | - | |
| Avg | - | - | - | - | 44.8 | - | - | 2.8 | - | - | - | - | - | - | - | - | |
| Min | 76.2 | - | 37.1 | - | 39.0 | 55 | 15 | 1.5 | 12.1 | - | - | 0.00 | 0.00 | 0.066 | 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 | 9/28/26 | 85.1 3.8 | 1503 | 42.9 4.3 | 0529 | 47.7 3.6 | 97 4 | 28 8 | - | - | - | - | 0.00 | 0.09 | - | - | 100 0 |
| Diamond Mtn (Schramsberg) | 9/28/26 | 82.3 4.5 | 1358 | 45.8 4.4 | 0729 | 46.6 2.5 | 100 9 | 22 11 | - | - | - | - | 0.00 | 0.13 | - | - | 100 20 |
| Diamond Mtn (McEachran) | 9/28/26 | 83.7 5.4 | 1528 | 47.4 3.3 | 0501 | 46.6 3.3 | 98 10 | 24 8 | - | - | - | - | - | - | - | - | 100 0 |
| St. Helena-North | 9/28/26 | 86.6 5.9 | 1543 | 45.7 3.4 | 0442 | 44.8 3.5 | 89 6 | 19 9 | 1.7 | 10.5 3.3 | 1722 | WNW | 291 | 0.00 | 0.11 | 0.119 0.006 | 377 1 | 40 10 |
| St. Helena (NVV Office) | 9/28/26 | 87.7 9.5 | 1615 | 46.7 3.4 | 0315 | - | - | - | 0.9 | 7.4 2.6 | 1651 | W | 270 | 0.00 | 0.04 | - | - | 50 10 |
| Tiara Fria (East St. Helena) | 9/28/26 | 85.5 9.3 | 1613 | 44.6 2.6 | 0326 | 47.5 2.8 | 93 6 | 22 21 | 1.4 | 8.7 4.6 | 1718 | WSW | 237 | 0.00 | 0.02 | - | - | 30 20 |
| Prisoner Winery | 9/28/26 | 87.6 7.1 | 1555 | 43.7 3.2 | 0324 | 48.0 2.2 | 97 2 | 20 18 | 1.0 | 9.1 1.4 | 1708 | NNW | 331 | 0.00 | 0.06 | 0.019 0.004 | 0 0 | 30 10 |
| Rutherford Hill Estate | 9/28/26 | 87.1 9.2 | 1652 | 48.5 2.0 | 0335 | 50.0 0.9 | 100 8 | 22 19 | 1.3 | 9.2 9.2 | 1210 | SSW | 201 | 0.00 | 0.08 | 0.113 0.007 | 374 23 | 50 10 |
| Rutherford-North (Mee Ln) | 9/28/26 | 88.3 11.5 | 1655 | 41.4 2.9 | 0257 | 47.1 2.7 | 94 4 | 21 22 | 1.6 | 10.1 7.0 | 1613 | SE | 135 | 0.00 | 0.06 | 0.119 0.005 | 373 9 | 80 10 |
| Rutherford (STS) | 9/28/26 | 86.5 6.7 | 1556 | 41.2 4.1 | 0319 | 50.3 2.1 | 93 0 | 32 14 | 1.3 | 8.7 5.6 | 1448 | SSE | 152 | 0.00 | 0.05 | 0.131 0.001 | 431 0 | 80 10 |
| Oakville-NE (Ranch 88) | 9/28/26 | 85.7 8.2 | 1605 | 41.4 3.4 | 0333 | 46.4 2.5 | 89 5 | 26 13 | 1.0 | 9.2 7.4 | 1712 | S | 188 | 0.00 | 0.04 | 0.114 0.009 | 364 4 | 100 0 |
| OV561-East | 9/28/26 | 87.2 10.1 | 1628 | 43.4 4.2 | 0330 | - | - | - | - | - | - | - | - | - | - | - | 50 10 |
| Oakville | 9/28/26 | 82.2 7.2 | 1558 | 42.2 3.6 | 0322 | 47.9 2.4 | 92 3 | 32 12 | 2.0 | 10.7 9.1 | 1350 | SSE | 155 | 0.00 | 0.03 | 0.128 0.002 | 406 3 | 90 20 |
| OV518-West | 9/28/26 | 81.2 6.3 | 1547 | 43.2 3.4 | 0334 | - | - | - | - | - | - | - | - | - | - | - | 100 20 |
| To Kalon Remote (TKKE) | 9/28/26 | 85.3 7.9 | 1548 | 42.6 3.0 | 0327 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| To Kalon | 9/28/26 | 83.2 7.1 | 1553 | 43.1 3.4 | 0312 | 49.2 1.4 | 96 4 | 31 13 | 1.9 | 10.6 4.5 | 1553 | SE | 145 | 0.00 | 0.00 | 0.127 0.001 | 408 6 | 90 20 |
| To Kalon Remote (TKN5) | 9/28/26 | 84.7 6.3 | 1554 | 43.5 2.9 | 0326 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| Yountville (Ranch 67) | 9/28/26 | 81.1 7.5 | 1525 | 42.3 3.7 | 0313 | 47.1 2.6 | 92 4 | 34 10 | 2.0 | 10.7 5.1 | 1408 | SSE | 154 | 0.00 | 0.05 | 0.133 0.005 | 478 50 | 90 20 |
| Stags Leap Dist (Silverado Vineyards) | 9/28/26 | 81.7 8.1 | 1519 | 42.8 3.0 | 0340 | 47.4 2.7 | 93 4 | 34 10 | 1.9 | 12.1 4.7 | 1747 | ESE | 122 | 0.00 | 0.07 | 0.127 0.004 | 388 3 | 70 10 |
| Borreo (Soda Canyon) | 9/28/26 | 78.9 7.0 | 1522 | 42.6 3.1 | 0616 | 46.9 2.6 | 97 5 | 36 11 | 1.5 | 9.0 2.4 | 1552 | S | 174 | 0.00 | 0.31 | 0.118 0.010 | 407 29 | 50 10 |
| Wappo Hill Floor | 9/28/26 | 81.2 6.4 | 1525 | 41.3 5.4 | 0605 | 48.4 2.6 | 100 9 | 37 5 | 1.8 | 11.1 2.6 | 1529 | SE | 136 | 0.00 | 0.10 | 0.127 0.003 | 412 13 | 100 20 |
| Stags Leap Dist (Chimney Rock) | 9/28/26 | 80.2 5.4 | 1601 | 41.8 5.4 | 0541 | 49.7 3.2 | 98 5 | 44 5 | 1.8 | 11.1 1.8 | 1620 | S | 182 | 0.00 | 0.10 | 0.113 0.003 | 374 11 | 100 20 |
| Yountville-South (Ranch 87) | 9/28/26 | 82.1 6.3 | 1556 | 43.2 3.5 | 0352 | 49.5 1.7 | 100 5 | 37 6 | 1.2 | 7.8 4.6 | 1616 | S | 169 | 0.00 | 0.09 | 0.116 0.009 | 387 34 | 100 0 |
| Yountville-SE (Ranch 85) | 9/28/26 | 79.0 5.7 | 1534 | 42.5 4.5 | 0536 | 49.3 2.5 | 96 3 | 42 4 | 1.8 | 11.2 2.5 | 1707 | S | 176 | 0.00 | 0.08 | - | 0 0 | 100 20 |
| Oak Knoll-East (Ranch 53) | 9/28/26 | 78.6 4.8 | 1529 | 44.1 1.9 | 0540 | 48.3 2.0 | 93 4 | 36 3 | 1.9 | 11.0 3.4 | 1415 | SSE | 168 | 0.00 | 0.15 | 0.127 0.004 | 416 0 | 100 0 |
| Napa-NW (Ranch 54) | 9/28/26 | 82.6 7.2 | 1646 | 44.3 3.2 | 0340 | 48.7 1.2 | 93 3 | 28 11 | 0.6 | 5.6 4.8 | 1426 | ESE | 114 | 0.00 | 0.18 | - | 0 0 | 100 0 |
| Napa-North (Ranch 29) | 9/28/26 | 79.4 6.1 | 1634 | 44.2 5.1 | 0448 | 50.2 1.4 | 100 10 | 41 3 | 1.1 | 10.6 2.9 | 1708 | S | 175 | 0.00 | 0.10 | 0.091 0.004 | 296 21 | 70 20 |
| Max | 88.3 | - | 48.5 | - | 50.3 | 100 | 44 | 2.0 | 12.1 | - | - | 0.00 | 0.31 | 0.133 | 478 | - | |
| Avg | - | - | - | - | 48.1 | - | - | 1.5 | - | - | - | - | - | - | - | - | |
| Min | 78.6 | - | 41.2 | - | 44.8 | 89 | 19 | 0.6 | 5.6 | - | - | 0.00 | 0.00 | 0.019 | 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 | 9/28/26 | 77.8 5.2 | 1420 | 49.0 2.0 | 0419 | 45.6 2.7 | 90 1 | 29 15 | 1.2 | 8.2 4.7 | 1318 | SE | 128 | 0.00 | 0.45 | 0.181 0.005 | 771 93 | 60 10 |
| Mount George (Napa East) | 9/28/26 | 85.6 10.2 | 1637 | 44.5 2.0 | 0434 | 50.7 0.8 | 96 4 | 40 7 | 1.0 | 8.6 2.0 | 1658 | SE | 144 | 0.00 | 0.16 | 0.122 0.009 | 418 24 | 100 20 |
| Napa-East (Palmaz 300') | 9/28/26 | 83.9 8.1 | 1638 | 45.7 3.4 | 0523 | 49.6 1.5 | 100 6 | 32 10 | 1.3 | 8.3 3.8 | 1425 | SW | 227 | 0.00 | 0.16 | 0.111 0.005 | 365 8 | 90 20 |
| 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') | 9/28/26 | 76.0 5.9 | 1501 | 47.5 0.9 | 0455 | 48.8 2.0 | 100 0 | 39 13 | 2.2 | 11.2 2.1 | 1407 | WSW | 242 | 0.00 | 0.33 | 0.126 0.020 | 444 43 | 40 10 |
| Wooden Valley | 9/28/26 | 80.0 6.6 | 1638 | 49.4 3.5 | 0158 | 46.8 2.3 | 91 5 | 31 14 | 2.9 | 16.8 2.8 | 1509 | W | 274 | 0.00 | 0.04 | 0.145 0.022 | 463 52 | 100 20 |
| Napa-West Upper (Truchard) | 9/28/26 | 83.6 9.8 | 1619 | 46.8 1.8 | 0338 | 9.4 40.4 | 100 0 | 0 0 | 2.0 | 14.9 0.7 | 1613 | S | 189 | 0.00 | 0.10 | 0.515 0.023 | - | 90 20 |
| Napa-West Lower (Truchard) | 9/28/26 | 83.9 10.2 | 1623 | 40.0 2.1 | 0423 | 46.1 2.9 | 94 5 | 24 17 | - | - | - | - | - | - | - | - | 90 20 |
| Napa-South (Toyon Farms) | 9/28/26 | 82.4 10.9 | 1618 | 47.1 1.9 | 0342 | 52.2 0.7 | 100 4 | 32 20 | 2.4 | 13.6 2.5 | 1607 | SSE | 164 | 0.00 | 0.07 | 0.083 0.011 | 229 11 | 50 20 |
| Toyon Remote 1 | 9/28/26 | 82.4 9.9 | 1613 | 41.8 3.4 | 0342 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 9/28/26 | 80.9 9.4 | 1619 | 42.5 3.9 | 0329 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 9/28/26 | 84.3 11.1 | 1625 | 42.1 2.9 | 0354 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 9/28/26 | 82.8 9.8 | 1602 | 45.0 2.1 | 0436 | 48.3 1.6 | 96 5 | 24 17 | 2.3 | 16.2 0.8 | 1646 | W | 272 | 0.00 | 0.08 | 0.126 0.007 | 416 3 | 100 20 |
| Carneros (Saintsbury) | 9/28/26 | 80.3 9.1 | 1610 | 42.4 3.7 | 0353 | 48.5 1.6 | 100 7 | 29 15 | 3.4 | 17.2 0.8 | 1627 | WSW | 238 | 0.00 | 0.08 | - | - | 50 20 |
| Suscol Lower (Ranch 35) | 9/28/26 | 76.6 4.8 | 1507 | 45.9 2.2 | 0336 | 50.6 0.2 | 100 8 | 41 3 | 3.6 | 14.4 2.6 | 1402 | SSW | 209 | 0.00 | 0.15 | 0.123 0.014 | 395 49 | 20 10 |
| Suscol Mtn (Ranch 93) | 9/28/26 | 78.2 3.9 | 1538 | 49.6 0.3 | 0102 | 51.8 0.2 | 99 4 | 41 8 | 3.5 | 14.3 4.0 | 1440 | NW | 324 | 0.00 | 0.40 | - | - | 10 10 |
| Suscol Upper (Ranch 92) | 9/28/26 | 76.2 6.7 | 1518 | 49.2 1.4 | 0221 | 12.1 38.7 | 100 0 | 0 0 | 1.4 | 10.8 5.8 | 1700 | SSW | 196 | 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) | 9/28/26 | 80.9 8.8 | 1543 | 49.3 1.8 | 0509 | 47.2 3.4 | - | - | 4.8 | 23.3 2.5 | 1637 | W | 263 | - | - | - | - | 20 10 |
| Carneros (Mitsuko) | 9/28/26 | 81.6 10.1 | 1556 | 40.2 3.5 | 0206 | - | - | - | - | - | - | - | - | - | - | - | 20 10 |
| Carneros Lower (Ranch 81) | 9/28/26 | 83.9 11.3 | 1602 | 43.8 6.8 | 0350 | 40.9 10.3 | 100 8 | 0 45 | 0.9 | 14.4 0.1 | 1457 | SSE | 160 | 0.00 | 0.01 | 0.018 0.002 | 5 6 | 50 20 |
| Carneros (Milton Rd) | 9/28/26 | 77.4 6.4 | 1713 | 41.1 2.7 | 0350 | 48.9 0.3 | 93 2 | 33 11 | - | - | - | - | 0.00 | 0.00 | - | - | 20 10 |
| Max | 85.6 | - | 49.6 | - | 52.2 | 100 | 41 | 4.8 | 23.3 | - | - | 0.00 | 0.45 | 0.515 | 771 | - | |
| Avg | - | - | - | - | 43.6 | - | - | 2.3 | - | - | - | - | - | - | - | - | |
| Min | 76.0 | - | 40.0 | - | 9.4 | 90 | 0 | 0.9 | 8.2 | - | - | 0.00 | 0.00 | 0.018 | 5 | - |