| 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 | 4/23/26 | 67.6 8.0 | 1605 | 37.0 2.8 | 0638 | - | - | - | - | - | - | - | 0.00 | 49.62 | - | - | 0 0 |
| Pope Valley (Weeks Lake) | 4/23/26 | 73.2 9.9 | 1614 | 38.2 0.5 | 0125 | 43.6 2.6 | 100 0 | 31 17 | 1.7 | 12.9 1.1 | 1750 | W | 281 | 0.01 | 25.63 | 0.162 0.081 | 566 250 | 10 10 |
| Dollarhide Base | 4/23/26 | 74.4 10.3 | 1603 | 40.0 5.8 | 0609 | 46.1 2.3 | 100 0 | 35 20 | 2.4 | 15.1 0.4 | 1829 | SW | 218 | 0.01 | 22.63 | 0.187 0.085 | 644 231 | 20 10 |
| Dollarhide 1AS Remote | 4/23/26 | 74.5 8.5 | 1601 | 40.0 2.3 | 0652 | 45.6 2.1 | 95 0 | 35 14 | 1.8 | 11.4 0.1 | 1753 | SSW | 208 | - | - | - | - | 10 10 |
| Dollarhide 17B Remote | 4/23/26 | 75.8 9.2 | 1625 | 40.8 1.6 | 0654 | 46.6 1.8 | 100 0 | 35 18 | - | - | - | - | - | - | - | - | 20 10 |
| Dollarhide 18A Remote | 4/23/26 | 75.4 9.3 | 1612 | 39.3 1.2 | 0154 | 45.6 2.0 | 100 0 | 36 13 | - | - | - | - | - | - | - | - | 0 0 |
| Angwin | 4/23/26 | 65.9 10.0 | 1600 | 44.8 3.2 | 0353 | 40.5 3.9 | 90 10 | 42 18 | 4.2 | 12.6 1.3 | 0806 | NNW | 341 | 0.00 | 44.46 | 0.034 0.029 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 4/23/26 | 66.8 9.1 | 1540 | 37.5 3.3 | 0620 | - | - | - | 2.5 | 12.9 1.2 | 0904 | NNW | 344 | - | - | - | - | 0 0 |
| Deer Park | 4/23/26 | 73.3 8.9 | 1448 | 45.2 2.2 | 0557 | 43.6 4.2 | 92 5 | 31 18 | 2.7 | 13.1 1.4 | 1023 | N | 6 | 0.00 | 28.18 | 0.132 0.064 | 392 154 | 0 0 |
| Lower Chiles Valley (Brown) | 4/23/26 | 72.5 8.5 | 1625 | 35.0 4.4 | 0635 | 43.0 2.5 | 100 0 | 32 15 | 1.8 | 11.2 5.4 | 1641 | WSW | 241 | 0.00 | 25.25 | 0.176 0.074 | 636 235 | 0 0 |
| Moss Creek Vineyard/Reservior | 4/23/26 | 75.7 12.4 | 1638 | 39.2 3.8 | 0548 | 44.1 2.2 | 100 0 | 32 18 | - | - | - | - | 0.00 | 26.50 | - | - | 0 0 |
| Max | 75.8 | - | 45.2 | - | 46.6 | 100 | 42 | 4.2 | 15.1 | - | - | 0.01 | 49.62 | 0.187 | 644 | - | |
| Avg | - | - | - | - | 44.3 | - | - | 2.4 | - | - | - | - | - | - | - | - | |
| Min | 65.9 | - | 35.0 | - | 40.5 | 90 | 31 | 1.7 | 11.2 | - | - | 0.00 | 22.63 | 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 | 4/23/26 | 77.8 7.9 | 1452 | 40.9 5.4 | 0638 | 45.8 4.2 | 100 0 | 32 15 | - | - | - | - | 0.00 | 32.32 | - | - | 40 20 |
| Diamond Mtn (Schramsberg) | 4/23/26 | 70.8 8.1 | 1351 | 46.6 0.2 | 0449 | 43.5 4.1 | 100 0 | 34 17 | - | - | - | - | 0.00 | 30.72 | - | - | 0 0 |
| Diamond Mtn (McEachran) | 4/23/26 | 72.2 5.6 | 1359 | 45.2 1.8 | 0638 | 43.7 4.9 | 96 2 | 30 17 | - | - | - | - | - | - | - | - | 0 0 |
| St. Helena-North | 4/23/26 | 74.8 8.5 | 1530 | 42.0 5.1 | 0621 | 43.0 5.3 | 100 0 | 28 14 | 1.7 | 10.8 2.0 | 1600 | NNW | 331 | 0.00 | 30.46 | 0.150 0.068 | 511 207 | 10 10 |
| St. Helena (NVV Office) | 4/23/26 | 75.6 7.9 | 1523 | 45.0 3.1 | 0656 | - | - | - | 1.1 | 9.3 1.6 | 1631 | W | 261 | 0.00 | 27.95 | - | - | 80 20 |
| Tiara Fria (East St. Helena) | 4/23/26 | 73.5 7.7 | 1608 | 43.1 4.6 | 0623 | 45.1 3.9 | 97 1 | 30 15 | 2.1 | 14.7 5.1 | 1657 | WSW | 248 | 0.00 | 25.95 | - | - | 10 10 |
| Rutherford Hill Estate | 4/23/26 | 75.7 7.7 | 1526 | 46.1 2.5 | 0559 | 45.0 3.7 | 100 0 | 30 13 | 1.7 | 11.0 2.4 | 1641 | WSW | 247 | 0.00 | 24.50 | 0.160 0.068 | 540 189 | 40 20 |
| Rutherford-North (Mee Ln) | 4/23/26 | 75.6 5.7 | 1524 | 38.7 6.2 | 0552 | 44.5 2.9 | 97 1 | 27 14 | 2.2 | 14.2 3.7 | 1556 | S | 187 | 0.00 | 23.98 | 0.169 0.065 | 565 171 | 50 20 |
| Rutherford (STS) | 4/23/26 | 76.1 8.4 | 1519 | 43.6 3.6 | 0605 | 46.6 2.3 | 91 0 | 34 18 | 2.4 | 15.0 5.6 | 1631 | WSW | 248 | 0.00 | 25.26 | 0.193 0.075 | 663 204 | 80 20 |
| Oakville-NE (Ranch 88) | 4/23/26 | 76.1 7.4 | 1600 | 43.7 2.3 | 0613 | 45.3 3.0 | 100 0 | 27 15 | 1.6 | 13.8 4.8 | 1625 | WNW | 290 | 0.00 | 24.39 | 0.178 0.072 | 610 214 | 0 0 |
| OV561-East | 4/23/26 | 77.9 8.1 | 1531 | 43.4 3.6 | 0618 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Oakville | 4/23/26 | 74.2 5.7 | 1530 | 43.1 3.3 | 0624 | 44.6 3.7 | 97 1 | 27 14 | 2.8 | 15.3 4.2 | 1616 | WSW | 238 | 0.00 | 24.96 | 0.188 0.072 | 638 192 | 10 10 |
| OV518-West | 4/23/26 | 72.6 5.7 | 1601 | 45.2 2.6 | 0501 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| To Kalon Remote (TKKE) | 4/23/26 | 75.0 5.4 | 1516 | 43.5 3.1 | 0546 | - | - | - | - | - | - | - | - | - | - | - | 80 20 |
| To Kalon | 4/23/26 | 74.3 5.5 | 1509 | 42.7 4.2 | 0626 | 45.1 4.1 | 100 1 | 33 11 | 2.5 | 12.7 2.3 | 1632 | WSW | 246 | 0.00 | 27.15 | 0.173 0.068 | 590 189 | 0 0 |
| To Kalon Remote (TKN5) | 4/23/26 | 75.0 5.8 | 1553 | 42.0 5.3 | 0631 | - | - | - | - | - | - | - | - | - | - | - | 30 10 |
| Yountville (Ranch 67) | 4/23/26 | 73.3 8.0 | 1457 | 44.0 2.6 | 0624 | 44.8 3.0 | 97 0 | 27 20 | 2.8 | 12.8 1.8 | 1305 | NW | 308 | 0.00 | 23.06 | 0.181 0.080 | 655 234 | 10 10 |
| Stags Leap Dist (Silverado Vineyards) | 4/23/26 | 73.3 8.1 | 1727 | 43.7 3.2 | 0633 | 45.1 2.4 | 96 0 | 26 21 | 1.7 | 12.0 0.2 | 1622 | SSE | 157 | 0.00 | 27.09 | 0.168 0.075 | 599 257 | 0 0 |
| Borreo (Soda Canyon) | 4/23/26 | 71.8 5.8 | 1512 | 41.0 3.6 | 0540 | 43.7 3.1 | 99 2 | 32 11 | 1.8 | 11.7 0.7 | 1708 | W | 278 | 0.00 | 27.02 | 0.184 0.086 | 666 272 | 0 0 |
| Wappo Hill Floor | 4/23/26 | 75.5 5.0 | 1522 | 41.6 3.8 | 0553 | 45.6 3.4 | 100 0 | 27 13 | 2.3 | 11.9 0.7 | 1653 | SSW | 205 | 0.00 | 26.26 | 0.172 0.046 | 588 108 | 80 20 |
| Stags Leap Dist (Chimney Rock) | 4/23/26 | 73.6 6.8 | 1512 | 42.7 2.7 | 0540 | 47.1 2.9 | 100 0 | 35 17 | 3.0 | 14.0 2.9 | 1619 | SSW | 207 | 0.00 | 25.63 | 0.168 0.060 | 575 161 | 10 10 |
| Yountville-South (Ranch 87) | 4/23/26 | 74.2 6.7 | 1537 | 42.8 3.7 | 0542 | 46.8 2.9 | 100 0 | 34 10 | 1.9 | 13.7 3.5 | 1624 | SW | 236 | 0.00 | 26.90 | 0.170 0.061 | 587 171 | 70 20 |
| Yountville-SE (Ranch 85) | 4/23/26 | 75.0 7.3 | 1531 | 43.3 4.4 | 0553 | 46.3 3.3 | 100 0 | 33 15 | 1.6 | 13.1 2.9 | 1512 | S | 191 | 0.00 | 25.19 | - | 0 0 | 20 20 |
| Oak Knoll-East (Ranch 53) | 4/23/26 | 74.2 5.9 | 1534 | 41.8 5.4 | 0620 | 45.4 3.4 | 97 1 | 29 17 | 1.8 | 14.5 5.0 | 1700 | S | 180 | 0.00 | 23.77 | 0.185 0.073 | 652 227 | 50 20 |
| Napa-NW (Ranch 54) | 4/23/26 | 74.3 4.1 | 1512 | 43.1 4.0 | 0635 | 45.7 4.1 | 100 0 | 27 16 | 1.1 | 11.1 3.9 | 1650 | SSW | 196 | 0.00 | 26.23 | - | 0 0 | 80 20 |
| Napa-North (Ranch 29) | 4/23/26 | 73.1 5.9 | 1528 | 42.8 4.9 | 0622 | 46.3 4.2 | 100 0 | 29 21 | 1.6 | 15.7 6.4 | 1456 | SE | 136 | 0.00 | 24.67 | 0.116 0.043 | 363 93 | 20 10 |
| Max | 77.9 | - | 46.6 | - | 47.1 | 100 | 35 | 3.0 | 15.7 | - | - | 0.00 | 32.32 | 0.193 | 666 | - | |
| Avg | - | - | - | - | 45.2 | - | - | 2.0 | - | - | - | - | - | - | - | - | |
| Min | 70.8 | - | 38.7 | - | 43.0 | 91 | 26 | 1.1 | 9.3 | - | - | 0.00 | 23.06 | 0.116 | 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 | 4/23/26 | 65.7 6.5 | 1134 | 46.8 1.4 | 0550 | 42.8 3.9 | 90 10 | 39 23 | 2.0 | 10.6 0.8 | 1407 | S | 176 | 0.00 | 33.62 | 0.234 0.111 | 1,052 348 | 0 0 |
| Mount George (Napa East) | 4/23/26 | 81.0 5.0 | 1142 | 49.8 2.7 | 0731 | 51.0 3.5 | 100 0 | 33 18 | 1.5 | 12.1 3.1 | 1606 | W | 269 | 0.00 | 16.54 | 0.177 0.073 | 623 243 | 10 10 |
| Napa-East (Palmaz 300') | 4/23/26 | 73.7 5.6 | 1523 | 43.1 4.9 | 0605 | 46.1 2.8 | 100 0 | 32 13 | 2.0 | 12.5 3.1 | 1551 | WSW | 250 | 0.00 | 22.81 | 0.154 0.060 | 525 175 | 20 10 |
| Napa-East (Palmaz 1200') | 4/23/26 | 67.2 5.6 | 1618 | 42.0 1.8 | 0549 | 42.8 0.7 | 100 0 | 36 31 | 2.7 | 12.7 1.2 | 1519 | WNW | 289 | - | - | 0.161 0.087 | 598 306 | 0 0 |
| Napa-East (Palmaz 1400') | 4/23/26 | 68.2 8.3 | 1251 | 39.6 3.6 | 0555 | 44.7 2.7 | 100 0 | 41 21 | 2.8 | 16.0 4.5 | 1647 | W | 263 | 0.00 | 30.26 | 0.156 0.095 | 588 324 | 0 0 |
| Wooden Valley | 4/23/26 | 70.8 6.5 | 1537 | 38.3 2.7 | 0610 | 42.8 1.9 | 98 1 | 33 18 | 2.1 | 14.8 5.6 | 1613 | SW | 218 | 0.00 | 28.57 | 0.170 0.089 | 614 280 | 0 0 |
| Napa-West Upper (Truchard) | 4/23/26 | 73.6 5.5 | 1453 | 45.5 2.6 | 0642 | 25.5 5.5 | 100 0 | 0 0 | 3.4 | 18.5 8.6 | 1635 | SSW | 210 | 0.00 | 23.93 | 0.188 0.084 | 625 273 | 0 0 |
| Napa-West Lower (Truchard) | 4/23/26 | 77.0 5.8 | 1506 | 39.0 3.2 | 0629 | 43.9 4.1 | 100 0 | 25 17 | - | - | - | - | - | - | - | - | 80 20 |
| Napa-South (Toyon Farms) | 4/23/26 | 73.2 5.4 | 1459 | 45.5 1.7 | 0534 | 49.2 2.6 | 100 0 | 37 17 | 2.2 | 13.6 4.5 | 1551 | SW | 217 | 0.00 | 17.89 | 0.091 0.028 | 288 56 | 0 0 |
| Toyon Remote 1 | 4/23/26 | 75.3 5.2 | 1504 | 38.6 3.3 | 0632 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 4/23/26 | 73.3 3.9 | 1454 | 40.9 2.4 | 0557 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 4/23/26 | 75.4 6.7 | 1544 | 41.8 2.6 | 0633 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 4/23/26 | 73.9 6.3 | 1451 | 42.8 2.4 | 0435 | 46.1 3.0 | 97 1 | 31 16 | 2.0 | 14.0 5.0 | 1630 | WNW | 298 | 0.00 | 23.12 | 0.174 0.071 | 616 233 | 50 10 |
| Carneros (Saintsbury) | 4/23/26 | 72.8 5.0 | 1545 | 41.4 2.5 | 0500 | 46.9 1.9 | 100 0 | 37 11 | 3.4 | 17.2 6.7 | 1611 | WSW | 248 | 0.03 | 8.65 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 4/23/26 | 72.6 3.9 | 1458 | 42.7 3.7 | 0655 | 46.8 2.5 | - | - | 3.4 | 14.4 0.8 | 1617 | SSW | 211 | 0.00 | 22.41 | 0.169 0.078 | 578 236 | 0 0 |
| Suscol Mtn (Ranch 93) | 4/23/26 | 72.9 2.2 | 1419 | 48.5 1.3 | 0026 | 45.6 2.4 | 91 8 | 39 12 | 5.3 | 21.7 0.5 | 1659 | WNW | 296 | 0.00 | 18.04 | - | - | 0 0 |
| Suscol Upper (Ranch 92) | 4/23/26 | 70.1 4.1 | 1512 | 48.4 0.2 | 0051 | 46.1 5.5 | 92 8 | 39 36 | 1.8 | 16.9 1.9 | 1649 | SW | 228 | 0.00 | 21.98 | - | - | 0 0 |
| Stanly (Ranch 45) | 4/23/26 | 72.5 4.0 | 1502 | 41.5 3.6 | 0615 | 46.7 1.8 | 99 0 | 37 8 | 3.9 | 16.0 3.6 | 1559 | SW | 223 | 0.01 | 22.49 | 0.195 0.096 | 684 308 | 20 10 |
| Carneros Upper (Ranch 81) | 4/23/26 | 72.2 5.0 | 1449 | 46.8 2.5 | 0435 | 47.1 12.3 | - | - | 5.6 | 21.6 8.0 | 1646 | WNW | 283 | - | - | - | - | 0 0 |
| Carneros (Mitsuko) | 4/23/26 | 73.0 5.2 | 1530 | 38.7 3.4 | 0503 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 4/23/26 | 75.0 8.8 | 1505 | 41.6 3.7 | 0641 | 41.3 9.5 | 100 0 | 0 0 | 1.1 | 13.4 2.6 | 1345 | SSE | 158 | 0.16 | 19.26 | 0.152 0.063 | 548 231 | 0 0 |
| Carneros (Milton Rd) | 4/23/26 | 72.7 4.7 | 1548 | 40.8 2.6 | 0500 | 46.9 2.5 | 96 2 | 38 13 | - | - | - | - | 0.01 | 18.07 | - | - | 0 0 |
| Max | 81.0 | - | 49.8 | - | 51.0 | 100 | 41 | 5.6 | 21.7 | - | - | 0.16 | 33.62 | 0.234 | 1,052 | - | |
| Avg | - | - | - | - | 44.6 | - | - | 2.8 | - | - | - | - | - | - | - | - | |
| Min | 65.7 | - | 38.3 | - | 25.5 | 90 | 0 | 1.1 | 10.6 | - | - | 0.00 | 8.65 | 0.091 | 288 | - |