| 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 | 9/2/26 | 67.8 0.3 | 1540 | 52.5 10.6 | 0105 | - | - | - | - | - | - | - | 0.29 | 0.29 | - | - | 70 10 |
| Pope Valley (Weeks Lake) | 9/2/26 | 74.7 0.5 | 1539 | 48.8 5.2 | 0155 | 51.4 3.6 | 100 0 | 39 4 | 3.1 0.3 | 15.6 2.0 | 1316 | SW | 229 | 0.00 | 0.00 | 0.103 0.026 | 297 84 | 0 10 |
| Dollarhide Base | 9/2/26 | 77.2 1.1 | 1611 | 56.7 5.8 | 0331 | 55.0 2.9 | 93 3 | 43 6 | 4.2 0.7 | 16.9 4.2 | 1504 | WSW | 242 | 0.00 | 0.00 | 0.120 0.033 | 355 83 | 0 10 |
| Dollarhide 1AS Remote | 9/2/26 | 77.8 0.6 | 1533 | 54.8 8.8 | 0144 | 54.4 3.4 | 91 2 | 42 5 | 3.8 0.5 | 16.3 5.3 | 1503 | SW | 228 | - | - | - | - | 30 20 |
| Dollarhide 16A Remote | 9/2/26 | 76.8 0.5 | 1525 | 57.1 8.7 | 0151 | 55.0 3.0 | 92 6 | 44 5 | - | - | - | - | - | - | - | - | 0 10 |
| Dollarhide 18A Remote | 9/2/26 | 76.0 0.4 | 1603 | 52.2 7.5 | 2256 | 53.9 3.3 | 93 4 | 43 4 | - | - | - | - | - | - | - | - | 0 10 |
| Hardin Rd (Eakle) | 9/2/26 | 77.2 1.5 | 1511 | 54.6 6.3 | 0101 | - | - | - | - | - | - | - | - | - | - | - | 0 10 |
| Angwin | 9/2/26 | 65.6 1.0 | 1505 | 51.0 1.3 | 0101 | 51.5 3.4 | 100 0 | 50 9 | 4.0 0.9 | 15.8 0.2 | 2050 | SSE | 150 | 0.05 | 0.05 | 0.014 0.005 | 0 0 | 70 10 |
| Lower Angwin (Pioneer) | 9/2/26 | 68.9 0.7 | 1611 | 52.4 1.5 | 0101 | - | - | - | 2.9 0.3 | 14.7 1.0 | 1616 | SW | 235 | - | - | - | - | 70 10 |
| Las Posadas (Cal Fire) | 9/2/26 | 70.2 0.2 | 1607 | 53.0 2.2 | 0340 | 53.3 3.6 | 99 6 | 47 6 | 7.8 1.1 | 23.3 0.7 | 2206 | WSW | 247 | 0.07 | 0.07 | 0.093 0.039 | 285 83 | - |
| Deer Park | 9/2/26 | 75.9 0.4 | 1557 | 56.0 1.1 | 0337 | 53.4 3.2 | 94 8 | 37 1 | 4.1 0.3 | 15.5 4.2 | 1635 | WSW | 238 | 0.00 | 0.00 | 0.092 0.020 | 226 46 | 30 10 |
| Lower Chiles Valley (Brown) | 9/2/26 | 73.8 0.2 | 1637 | 47.1 1.4 | 0128 | 52.6 3.1 | 96 3 | 41 5 | 2.7 1.0 | 15.5 6.5 | 1751 | NW | 311 | 0.00 | 0.01 | 0.099 0.023 | 312 43 | 0 10 |
| Moss Creek Vineyard/Reservior | 9/2/26 | 76.3 0.0 | 1654 | 52.8 2.5 | 0517 | 52.6 3.4 | 92 3 | 39 4 | - | - | - | - | 0.00 | 0.00 | - | - | 0 10 |
| Max | 77.8 | - | 57.1 | - | 55.0 | 100 | 50 | 7.8 | 23.3 | - | - | 0.29 | 0.29 | 0.120 | 355 | - | |
| Avg | - | - | - | - | 53.3 | - | - | 4.0 | - | - | - | - | - | - | - | - | |
| Min | 65.6 | - | 47.1 | - | 51.4 | 91 | 37 | 2.7 | 14.7 | - | - | 0.00 | 0.00 | 0.014 | 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 | 9/2/26 | 77.9 0.0 | 1535 | 54.4 0.4 | 0018 | 55.8 2.5 | 97 5 | 44 5 | - | - | - | - | 0.03 | 0.03 | - | - | 30 20 |
| Diamond Mtn (Schramsberg) | 9/2/26 | 73.0 0.2 | 1508 | 54.5 0.8 | 2242 | 53.8 3.6 | 100 12 | 44 5 | - | - | - | - | 0.04 | 0.04 | - | - | 30 10 |
| Diamond Mtn (McEachran) | 9/2/26 | 73.0 1.1 | 1540 | 56.7 2.4 | 0605 | 54.3 3.2 | 97 7 | 44 3 | - | - | - | - | - | - | - | - | 0 10 |
| St. Helena-North | 9/2/26 | 77.3 1.6 | 1559 | 55.8 1.5 | 0102 | 52.4 3.0 | 99 17 | 33 0 | 2.3 | 15.1 2.6 | 1844 | WNW | 283 | 0.01 | 0.01 | 0.106 0.011 | 328 21 | 0 0 |
| St. Helena (NVV Office) | 9/2/26 | 78.4 0.7 | 1542 | 55.8 1.4 | 0256 | - | - | - | 1.5 | 9.5 5.7 | 1831 | WSW | 256 | 0.02 | 0.02 | - | - | 30 20 |
| Tiara Fria (East St. Helena) | 9/2/26 | 77.2 0.9 | 1555 | 53.4 0.9 | 0252 | 53.8 2.8 | 92 6 | 39 4 | 2.7 | 13.5 1.8 | 1419 | SSW | 206 | 0.01 | 0.01 | - | - | 30 10 |
| Prisoner Winery | 9/2/26 | 76.9 0.1 | 1542 | 53.4 0.2 | 0250 | 54.0 3.2 | 94 2 | 38 5 | 1.6 | 14.5 1.5 | 1709 | SW | 216 | 0.04 | 0.04 | 0.078 0.046 | 222 222 | 0 10 |
| Rutherford Hill Estate | 9/2/26 | 77.9 0.8 | 1605 | 55.9 0.2 | 0226 | 54.5 3.5 | 91 6 | 38 6 | 1.8 | 12.3 4.2 | 1622 | SW | 230 | 0.04 | 0.04 | 0.090 0.036 | 292 77 | 30 10 |
| Rutherford-North (Mee Ln) | 9/2/26 | 76.9 0.4 | 1540 | 51.7 1.1 | 0234 | 53.6 2.8 | 93 4 | 40 4 | 2.6 | 14.7 6.6 | 1729 | WSW | 245 | 0.04 | 0.04 | 0.106 0.019 | 319 11 | 30 10 |
| Rutherford (STS) | 9/2/26 | 78.8 0.2 | 1543 | 51.8 1.6 | 0027 | 55.4 2.0 | 92 0 | 44 6 | 2.2 | 14.2 5.3 | 1603 | WSW | 254 | 0.02 | 0.02 | 0.120 0.022 | 382 33 | 90 10 |
| Oakville-NE (Ranch 88) | 9/2/26 | 77.1 0.3 | 1552 | 51.6 2.7 | 0058 | 51.7 2.4 | 85 3 | 36 6 | 2.1 | 13.9 2.6 | 1622 | NW | 308 | 0.00 | 0.00 | 0.096 0.030 | 275 74 | 100 0 |
| OV561-East | 9/2/26 | 78.3 1.4 | 1549 | 53.4 4.4 | 0334 | - | - | - | - | - | - | - | - | - | - | - | 30 10 |
| Oakville | 9/2/26 | 76.6 0.3 | 1549 | 52.6 4.1 | 0254 | 53.2 2.5 | 89 7 | 39 5 | 3.3 | 14.4 5.3 | 1701 | W | 270 | 0.00 | 0.00 | 0.117 0.037 | 360 74 | 70 10 |
| OV518-West | 9/2/26 | 75.0 1.1 | 1430 | 52.3 4.7 | 0246 | - | - | - | - | - | - | - | - | - | - | - | 70 10 |
| To Kalon Remote (TKKE) | 9/2/26 | 78.6 0.3 | 1427 | 53.7 3.2 | 0314 | - | - | - | - | - | - | - | - | - | - | - | 90 20 |
| To Kalon | 9/2/26 | 76.8 0.3 | 1539 | 53.6 3.3 | 0243 | 54.3 2.5 | 92 8 | 41 7 | 3.1 | 14.5 2.2 | 2114 | SW | 233 | 0.00 | 0.00 | 0.115 0.022 | 343 51 | 60 10 |
| To Kalon Remote (TKN5) | 9/2/26 | 77.4 0.4 | 1551 | 53.7 3.2 | 0251 | - | - | - | - | - | - | - | - | - | - | - | 90 20 |
| Yountville (Ranch 67) | 9/2/26 | 76.0 1.2 | 1513 | 51.2 0.6 | 0216 | 52.4 3.4 | 89 3 | 39 4 | 2.9 | 16.0 2.9 | 1505 | SSW | 194 | 0.00 | 0.00 | 0.117 0.018 | 406 10 | 70 10 |
| Stags Leap Dist (Silverado Vineyards) | 9/2/26 | 76.2 1.8 | 1640 | 52.1 0.8 | 0252 | 53.3 3.7 | 90 3 | 39 7 | 1.9 | 14.0 4.8 | 1515 | SE | 133 | 0.04 | 0.04 | 0.092 0.016 | 296 43 | 80 10 |
| Borreo (Soda Canyon) | 9/2/26 | 74.2 0.3 | 1635 | 50.8 0.1 | 0101 | 52.9 3.7 | 95 4 | 41 7 | 1.6 | 11.6 4.8 | 1534 | SE | 142 | 0.06 | 0.06 | 0.085 0.031 | 281 83 | 80 10 |
| Wappo Hill Floor | 9/2/26 | 76.5 0.3 | 1626 | 52.1 0.6 | 0117 | 54.2 3.7 | 100 11 | 40 7 | 2.5 | 12.7 9.1 | 1634 | WSW | 248 | 0.05 | 0.05 | 0.098 0.035 | 292 86 | 90 10 |
| Stags Leap Dist (Chimney Rock) | 9/2/26 | 77.1 0.3 | 1646 | 52.4 0.5 | 0112 | 55.8 2.6 | 94 2 | 45 5 | 2.4 | 14.2 2.9 | 1634 | SW | 232 | 0.02 | 0.02 | 0.087 0.032 | 266 69 | 90 10 |
| Yountville-South (Ranch 87) | 9/2/26 | 76.4 0.1 | 1501 | 52.4 0.1 | 0105 | 54.7 3.6 | 99 10 | 41 7 | 2.0 | 10.4 4.2 | 1556 | SW | 234 | 0.05 | 0.05 | 0.108 0.024 | 344 33 | 100 0 |
| Yountville-SE (Ranch 85) | 9/2/26 | 77.3 0.6 | 1633 | 52.9 0.6 | 0102 | 54.6 3.0 | 95 6 | 39 5 | 2.4 | 13.5 1.6 | 1814 | NW | 317 | 0.01 | 0.01 | - | 0 0 | 70 10 |
| Oak Knoll-East (Ranch 53) | 9/2/26 | 78.2 1.5 | 1636 | 53.1 1.0 | 0319 | 53.6 2.8 | 90 3 | 37 5 | 2.0 | 14.8 0.9 | 1501 | S | 177 | 0.01 | 0.01 | 0.109 0.032 | 345 57 | 100 0 |
| Napa-NW (Ranch 54) | 9/2/26 | 79.5 1.8 | 1609 | 52.8 2.2 | 0059 | 53.8 2.6 | 90 4 | 36 5 | 1.2 | 10.6 2.8 | 1631 | WNW | 283 | 0.02 | 0.02 | - | 0 0 | 100 0 |
| Napa-North (Ranch 29) | 9/2/26 | 75.5 0.0 | 1739 | 52.5 3.3 | 0259 | 55.8 3.0 | 100 12 | 44 7 | 1.7 | 11.5 9.3 | 1637 | S | 178 | 0.02 | 0.02 | 0.070 0.040 | 206 91 | 90 10 |
| Max | 79.5 | - | 56.7 | - | 55.8 | 100 | 45 | 3.3 | 16.0 | - | - | 0.06 | 0.06 | 0.120 | 406 | - | |
| Avg | - | - | - | - | 54.0 | - | - | 2.2 | - | - | - | - | - | - | - | - | |
| Min | 73.0 | - | 50.8 | - | 51.7 | 85 | 33 | 1.2 | 9.5 | - | - | 0.00 | 0.00 | 0.070 | 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 | 9/2/26 | 68.2 0.6 | 1534 | 53.0 0.8 | 2338 | 53.3 3.8 | 100 8 | 53 11 | 2.4 | 11.5 2.5 | 0642 | SSE | 161 | 0.11 | 0.11 | 0.099 0.007 | 435 9 | 70 10 |
| Mount George (Napa East) | 9/2/26 | 74.2 0.6 | 1547 | 51.8 1.0 | 0055 | 54.3 2.0 | 95 2 | 45 4 | 1.6 | 12.0 4.0 | 1458 | WSW | 241 | 0.04 | 0.04 | 0.097 0.039 | 319 112 | 40 10 |
| Napa-East (Palmaz 300') | 9/2/26 | 78.2 1.2 | 1612 | 54.0 0.7 | 0032 | 54.9 2.3 | 94 1 | 41 4 | 0.6 | 13.9 1.4 | 1607 | SW | 229 | 0.04 | 0.04 | 0.088 0.026 | 296 83 | 100 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') | 9/2/26 | 69.7 1.3 | 1548 | 53.1 0.0 | 0037 | 54.8 2.3 | 100 0 | 56 9 | 3.4 | 15.5 2.9 | 1513 | SSW | 208 | 0.10 | 0.13 | 0.086 0.029 | 322 80 | 50 10 |
| Wooden Valley | 9/2/26 | 73.0 0.8 | 1639 | 50.8 1.7 | 0140 | 52.1 2.8 | 92 4 | 43 4 | 3.1 | 14.5 1.3 | 1448 | W | 269 | 0.01 | 0.01 | 0.124 0.015 | 411 22 | 30 10 |
| Napa-West Upper (Truchard) | 9/2/26 | 78.2 0.9 | 1537 | 55.3 0.1 | 0040 | 43.5 9.6 | 100 0 | 0 35 | 3.0 | 15.7 4.6 | 1612 | SSW | 196 | 0.03 | 0.03 | 0.117 0.029 | 329 57 | 90 10 |
| Napa-West Lower (Truchard) | 9/2/26 | 78.6 1.2 | 1642 | 48.5 2.9 | 0302 | 53.2 1.2 | 93 3 | 37 3 | - | - | - | - | - | - | - | - | 100 0 |
| Napa-South (Toyon Farms) | 9/2/26 | 77.0 1.6 | 1525 | 55.1 1.4 | 0250 | 57.3 2.1 | 99 3 | 47 1 | 3.7 | 17.7 1.5 | 1439 | SSE | 167 | 0.02 | 0.02 | 0.072 0.013 | 212 4 | 70 10 |
| Toyon Remote 1 | 9/2/26 | 78.5 0.1 | 1702 | 50.3 1.1 | 0131 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 9/2/26 | 76.8 1.6 | 1703 | 50.7 1.4 | 0254 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 9/2/26 | 80.3 1.4 | 1649 | 50.2 0.7 | 0116 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 9/2/26 | 76.8 0.8 | 1631 | 52.0 0.7 | 0059 | 54.5 2.3 | 93 0 | 39 5 | 2.1 | 13.5 5.7 | 1538 | SE | 145 | 0.02 | 0.02 | 0.103 0.025 | 334 49 | 90 10 |
| Carneros (Saintsbury) | 9/2/26 | 75.8 1.4 | 1656 | 51.1 2.8 | 0257 | 54.0 1.8 | 100 8 | 42 4 | 4.3 | 18.5 5.0 | 1416 | SSE | 162 | 0.00 | 0.00 | - | - | 60 10 |
| Suscol Lower (Ranch 35) | 9/2/26 | 76.2 1.0 | 1535 | 54.0 0.2 | 0156 | 54.6 2.0 | 92 1 | 44 3 | 4.4 | 16.3 7.7 | 1512 | SSW | 207 | 0.01 | 0.01 | 0.125 0.023 | 369 19 | 50 10 |
| Suscol Mtn (Ranch 93) | 9/2/26 | 74.7 0.7 | 1359 | 55.4 1.1 | 0059 | 54.8 2.0 | 98 0 | 47 1 | 6.4 | 23.9 3.5 | 1857 | NW | 317 | 0.10 | 0.10 | - | - | 50 10 |
| Suscol Upper (Ranch 92) | 9/2/26 | 74.6 2.9 | 1636 | 55.5 0.3 | 0309 | 48.5 7.6 | 100 0 | 0 0 | 4.2 | 18.3 5.0 | 1848 | WNW | 284 | 0.05 | 0.05 | - | - | 20 10 |
| Stanly (Ranch 45) | 9/2/26 | 74.9 0.8 | 1432 | 50.5 3.2 | 0253 | 54.4 1.6 | 93 4 | 44 3 | 4.7 | 17.4 3.1 | 1422 | S | 191 | 0.00 | 0.00 | 0.142 0.012 | 448 8 | 90 20 |
| Carneros Upper (Ranch 81) | 9/2/26 | 75.9 2.1 | 1622 | 56.6 0.2 | 0007 | 54.5 2.2 | - | - | 7.0 | 24.7 1.1 | 2002 | W | 271 | - | - | - | - | 40 10 |
| Carneros (Mitsuko) | 9/2/26 | 77.2 2.0 | 1647 | 49.1 3.3 | 0250 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| Carneros Lower (Ranch 81) | 9/2/26 | 80.3 1.7 | 1640 | 52.0 0.5 | 0127 | 55.4 2.3 | 100 9 | 0 36 | - | 17.0 1.0 | 1442 | SSE | 155 | 0.00 | 0.00 | 0.010 0.007 | 1 1 | 70 10 |
| Carneros (Milton Rd) | 9/2/26 | 75.1 0.9 | 1722 | 51.0 1.5 | 0157 | 54.9 2.2 | 91 2 | 43 4 | - | - | - | - | 0.00 | 0.00 | - | - | 90 20 |
| Max | 80.3 | - | 56.6 | - | 57.3 | 100 | 56 | 7.0 | 24.7 | - | - | 0.11 | 0.13 | 0.142 | 448 | - | |
| Avg | - | - | - | - | 53.5 | - | - | 3.6 | - | - | - | - | - | - | - | - | |
| Min | 68.2 | - | 48.5 | - | 43.5 | 91 | 0 | 0.6 | 11.5 | - | - | 0.00 | 0.00 | 0.010 | 1 | - |