| 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 | 4/28/26 | 70.2 8.0 | 1610 | 37.9 2.3 | 0617 | - | - | - | - | - | - | - | 0.00 | 49.63 | - | - | 0 0 |
| Pope Valley (Weeks Lake) | 4/28/26 | 74.2 7.0 | 1606 | 35.3 5.1 | 0449 | 43.3 2.3 | 100 5 | 29 12 | 1.9 | 12.3 0.7 | 1510 | W | 266 | 0.00 | 25.63 | 0.174 0.070 | 590 221 | 20 20 |
| Dollarhide Base | 4/28/26 | 75.6 6.2 | 1545 | 40.9 6.7 | 0614 | 47.3 0.1 | 100 3 | 35 10 | 2.9 | 15.6 0.9 | 1748 | SW | 223 | 0.00 | 22.64 | 0.198 0.059 | 668 170 | 30 20 |
| Dollarhide 1AS Remote | 4/28/26 | 77.3 7.6 | 1649 | 37.4 7.5 | 0620 | 45.9 1.2 | 95 1 | 34 9 | 1.7 | 13.1 2.0 | 1721 | WNW | 288 | - | - | - | - | 20 20 |
| Dollarhide 17B Remote | 4/28/26 | 76.4 6.7 | 1632 | 37.8 6.8 | 0629 | 47.0 1.1 | 100 3 | 34 11 | - | - | - | - | - | - | - | - | 20 20 |
| Dollarhide 18A Remote | 4/28/26 | 75.9 6.5 | 1526 | 34.6 7.1 | 0616 | 45.3 1.7 | 100 4 | 36 10 | - | - | - | - | - | - | - | - | 0 0 |
| Angwin | 4/28/26 | 65.8 7.5 | 1508 | 45.8 2.9 | 0413 | 42.2 0.2 | 89 11 | 38 15 | 3.3 | 11.5 0.2 | 1541 | SE | 142 | 0.00 | 44.48 | 0.030 0.015 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 4/28/26 | 68.2 6.6 | 1600 | 37.3 3.5 | 0633 | - | - | - | 2.2 | 13.5 0.0 | 1723 | W | 271 | - | - | - | - | 0 0 |
| Deer Park | 4/28/26 | 74.5 8.0 | 1509 | 44.4 2.8 | 0558 | 45.0 0.2 | 95 2 | 32 15 | 2.6 | 13.6 1.7 | 1517 | SW | 223 | 0.00 | 28.19 | 0.148 0.066 | 448 200 | 0 0 |
| Lower Chiles Valley (Brown) | 4/28/26 | 72.8 6.9 | 1650 | 34.6 6.5 | 0553 | 43.4 1.8 | 100 6 | 34 11 | 1.8 | 12.9 0.4 | 1553 | S | 191 | 0.00 | 25.25 | 0.176 0.087 | 627 307 | 0 0 |
| Moss Creek Vineyard/Reservior | 4/28/26 | 75.2 9.1 | 1623 | 39.2 6.1 | 0603 | 45.2 0.5 | 100 6 | 34 10 | - | - | - | - | 0.00 | 26.50 | - | - | 0 0 |
| Max | 77.3 | - | 45.8 | - | 47.3 | 100 | 38 | 3.3 | 15.6 | - | - | 0.00 | 49.63 | 0.198 | 668 | - | |
| Avg | - | - | - | - | 45.0 | - | - | 2.4 | - | - | - | - | - | - | - | - | |
| Min | 65.8 | - | 34.6 | - | 42.2 | 89 | 29 | 1.7 | 11.5 | - | - | 0.00 | 22.64 | 0.030 | 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 | 4/28/26 | 79.2 6.1 | 1529 | 39.7 5.9 | 0630 | 46.4 0.6 | 99 1 | 32 9 | - | - | - | - | 0.00 | 32.32 | - | - | 20 20 |
| Diamond Mtn (Schramsberg) | 4/28/26 | 72.4 5.1 | 1615 | 45.4 0.6 | 0551 | 44.7 0.4 | 95 1 | 35 10 | - | - | - | - | 0.00 | 30.72 | - | - | 0 0 |
| Diamond Mtn (McEachran) | 4/28/26 | 73.3 7.1 | 1356 | 43.7 3.1 | 0620 | 45.0 0.1 | 95 0 | 33 10 | - | - | - | - | - | - | - | - | 0 0 |
| St. Helena-North | 4/28/26 | 76.1 7.9 | 1408 | 41.0 5.9 | 0551 | 43.0 0.8 | 100 12 | 27 8 | 1.9 | 13.8 0.4 | 1502 | SE | 134 | 0.00 | 30.46 | 0.151 0.037 | 495 115 | 20 20 |
| St. Helena (NVV Office) | 4/28/26 | 78.2 8.2 | 1549 | 41.4 6.5 | 0629 | - | - | - | 1.1 | 11.8 2.1 | 1712 | SSW | 210 | 0.00 | 27.95 | - | - | 60 20 |
| Tiara Fria (East St. Helena) | 4/28/26 | 76.0 7.9 | 1640 | 41.7 5.9 | 0628 | 45.2 0.5 | 96 5 | 32 13 | 2.2 | 14.8 0.5 | 1628 | WNW | 283 | 0.00 | 25.95 | - | - | 20 20 |
| Rutherford Hill Estate | 4/28/26 | 76.1 7.1 | 1527 | 43.6 4.4 | 0615 | 46.0 0.3 | 100 9 | 32 12 | 1.9 | 12.9 2.0 | 1839 | WNW | 290 | 0.00 | 24.50 | 0.160 0.059 | 543 185 | 20 20 |
| Rutherford-North (Mee Ln) | 4/28/26 | 76.9 6.4 | 1551 | 38.5 6.6 | 0534 | 45.4 0.4 | 96 1 | 31 10 | 2.1 | 14.5 0.7 | 1654 | WNW | 287 | 0.00 | 23.98 | 0.168 0.050 | 566 164 | 30 20 |
| Rutherford (STS) | 4/28/26 | 76.4 7.2 | 1508 | 40.3 5.7 | 0508 | 47.4 0.0 | 92 0 | 39 9 | 2.1 | 18.5 2.0 | 1628 | W | 261 | 0.00 | 25.26 | 0.179 0.050 | 620 167 | 60 20 |
| Oakville-NE (Ranch 88) | 4/28/26 | 76.6 6.7 | 1508 | 38.7 7.2 | 0618 | 44.3 1.0 | 98 6 | 30 7 | 1.5 | 12.2 8.2 | 1456 | WSW | 238 | 0.00 | 24.39 | 0.172 0.048 | 592 160 | 0 0 |
| OV561-East | 4/28/26 | 77.5 7.4 | 1556 | 39.7 7.0 | 0605 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Oakville | 4/28/26 | 74.9 6.5 | 1502 | 38.9 7.7 | 0622 | 45.2 0.4 | 97 3 | 34 6 | 2.6 | 12.7 4.6 | 1701 | WSW | 247 | 0.00 | 24.96 | 0.185 0.055 | 638 184 | 0 0 |
| OV518-West | 4/28/26 | 74.0 6.9 | 1740 | 40.6 7.0 | 0610 | - | - | - | - | - | - | - | - | - | - | - | 20 20 |
| To Kalon Remote (TKKE) | 4/28/26 | 76.6 6.7 | 1621 | 37.9 6.8 | 0607 | - | - | - | - | - | - | - | - | - | - | - | 60 20 |
| To Kalon | 4/28/26 | 74.4 5.8 | 1640 | 39.5 6.2 | 0614 | 45.7 0.4 | 99 5 | 34 11 | 2.1 | 11.4 3.7 | 1642 | WSW | 258 | 0.00 | 27.15 | 0.161 0.045 | 555 162 | 0 0 |
| To Kalon Remote (TKN5) | 4/28/26 | 75.3 6.2 | 1631 | 38.8 7.0 | 0605 | - | - | - | - | - | - | - | - | - | - | - | 20 20 |
| Yountville (Ranch 67) | 4/28/26 | 74.0 6.9 | 1726 | 38.9 6.7 | 0626 | 44.8 0.3 | 97 4 | 35 5 | 2.1 | 11.9 2.9 | 1450 | S | 178 | 0.00 | 23.06 | 0.189 0.070 | 700 258 | 0 0 |
| Stags Leap Dist (Silverado Vineyards) | 4/28/26 | 74.0 8.0 | 1643 | 38.8 7.3 | 0528 | 45.2 0.2 | 96 3 | 35 6 | 1.7 | 12.0 2.7 | 1248 | S | 189 | 0.00 | 27.09 | 0.175 0.068 | 630 264 | 0 0 |
| Borreo (Soda Canyon) | 4/28/26 | 71.9 8.2 | 1648 | 39.8 3.8 | 0528 | 44.9 0.5 | 98 2 | 36 11 | 1.9 | 11.8 0.7 | 1224 | ENE | 76 | 0.00 | 27.02 | 0.177 0.082 | 649 296 | 0 0 |
| Wappo Hill Floor | 4/28/26 | 74.6 6.5 | 1634 | 37.4 9.0 | 0625 | 46.1 0.6 | 100 0 | 37 6 | 2.2 | 12.1 2.0 | 1415 | S | 181 | 0.00 | 26.26 | 0.171 0.059 | 582 201 | 30 10 |
| Stags Leap Dist (Chimney Rock) | 4/28/26 | 73.8 6.2 | 1616 | 37.7 10.3 | 0524 | 47.3 0.8 | 100 2 | 41 6 | 2.5 | 15.9 1.9 | 1254 | S | 181 | 0.00 | 25.63 | 0.161 0.059 | 559 207 | 0 0 |
| Yountville-South (Ranch 87) | 4/28/26 | 74.7 8.2 | 1627 | 39.9 6.8 | 0549 | 46.9 0.1 | 100 0 | 37 8 | 2.0 | 11.7 2.2 | 1315 | SW | 215 | 0.00 | 26.90 | 0.173 0.067 | 604 236 | 50 20 |
| Yountville-SE (Ranch 85) | 4/28/26 | 74.8 7.7 | 1636 | 40.2 6.8 | 0536 | 46.7 0.5 | 100 4 | 37 7 | 1.7 | 11.8 1.4 | 1552 | S | 172 | 0.00 | 25.19 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 4/28/26 | 75.7 7.5 | 1644 | 39.6 7.8 | 0608 | 45.6 0.5 | 96 2 | 34 7 | 1.9 | 12.2 2.6 | 1708 | WSW | 254 | 0.00 | 23.77 | 0.183 0.072 | 650 257 | 30 20 |
| Napa-NW (Ranch 54) | 4/28/26 | 76.1 6.7 | 1606 | 42.7 3.9 | 0624 | 46.1 0.0 | 100 7 | 33 8 | 1.2 | 10.0 0.3 | 1817 | SW | 217 | 0.00 | 26.23 | - | 0 0 | 60 20 |
| Napa-North (Ranch 29) | 4/28/26 | 73.9 8.1 | 1646 | 41.0 7.7 | 0636 | 46.8 0.5 | 100 0 | 34 16 | 2.0 | 12.7 0.1 | 1603 | SSE | 162 | 0.00 | 24.67 | 0.118 0.045 | 372 144 | 0 0 |
| Max | 79.2 | - | 45.4 | - | 47.4 | 100 | 41 | 2.6 | 18.5 | - | - | 0.00 | 32.32 | 0.189 | 700 | - | |
| Avg | - | - | - | - | 45.7 | - | - | 1.9 | - | - | - | - | - | - | - | - | |
| Min | 71.9 | - | 37.4 | - | 43.0 | 92 | 27 | 1.1 | 10.0 | - | - | 0.00 | 23.06 | 0.118 | 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 | 4/28/26 | 67.0 6.4 | 1613 | 45.7 0.6 | 0544 | 43.9 1.0 | 84 8 | 45 7 | 1.4 | 12.0 1.1 | 1555 | S | 180 | 0.00 | 33.62 | 0.225 0.077 | 1,016 236 | 0 0 |
| Mount George (Napa East) | 4/28/26 | 73.5 11.1 | 1629 | 42.6 6.2 | 0606 | 49.8 7.0 | 100 0 | 35 20 | 1.5 | 10.2 1.8 | 1618 | ESE | 118 | 0.00 | 16.54 | 0.176 0.057 | 628 242 | 10 10 |
| Napa-East (Palmaz 300') | 4/28/26 | 73.9 7.8 | 1636 | 41.0 6.4 | 0615 | 46.1 0.2 | 100 4 | 32 12 | 2.1 | 10.0 1.9 | 1721 | WSW | 238 | 0.00 | 22.81 | 0.152 0.055 | 526 188 | 0 0 |
| Napa-East (Palmaz 1200') | 4/28/26 | 68.3 7.0 | 1717 | 38.9 2.8 | 0414 | 43.3 0.1 | 100 0 | 34 31 | 2.4 | 12.9 2.1 | 1548 | NW | 318 | - | - | 0.149 0.064 | 584 258 | 0 0 |
| Napa-East (Palmaz 1400') | 4/28/26 | 67.4 7.3 | 1423 | 40.8 3.0 | 0249 | 46.0 0.9 | 100 0 | 42 14 | 2.4 | 12.7 1.1 | 1758 | SW | 232 | 0.00 | 30.26 | 0.158 0.076 | 603 287 | 0 0 |
| Wooden Valley | 4/28/26 | 70.9 7.2 | 1535 | 38.4 3.2 | 0628 | 44.4 0.1 | 98 5 | 36 11 | 2.4 | 13.9 1.2 | 1837 | SW | 218 | 0.00 | 28.57 | 0.171 0.078 | 614 268 | 0 0 |
| Napa-West Upper (Truchard) | 4/28/26 | 73.9 6.0 | 1603 | 44.3 3.3 | 0513 | 33.4 12.9 | 100 0 | 0 40 | 3.1 | 15.9 1.2 | 1520 | SSE | 164 | 0.00 | 23.93 | 0.184 0.066 | 630 235 | 0 0 |
| Napa-West Lower (Truchard) | 4/28/26 | 76.8 6.2 | 1616 | 37.5 5.4 | 0628 | 44.4 1.1 | 100 5 | 29 8 | - | - | - | - | - | - | - | - | 60 20 |
| Napa-South (Toyon Farms) | 4/28/26 | 73.5 6.5 | 1630 | 43.5 3.9 | 0642 | 48.8 0.3 | 100 3 | 40 14 | 2.4 | 13.2 0.3 | 1644 | SW | 233 | 0.00 | 17.89 | 0.091 0.026 | 290 77 | 0 0 |
| Toyon Remote 1 | 4/28/26 | 76.1 6.9 | 1636 | 36.1 4.3 | 0642 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 4/28/26 | 73.9 6.0 | 1624 | 38.4 5.8 | 0618 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 4/28/26 | 76.5 8.1 | 1655 | 39.7 4.4 | 0618 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 4/28/26 | 74.0 5.7 | 1603 | 43.1 2.6 | 0358 | 46.0 0.2 | 96 2 | 31 11 | 2.2 | 12.9 1.5 | 1828 | SSW | 208 | 0.00 | 23.12 | 0.173 0.061 | 627 225 | 0 10 |
| Carneros (Saintsbury) | 4/28/26 | 73.4 6.3 | 1611 | 40.5 6.3 | 0641 | 46.1 0.3 | 100 7 | 31 16 | 3.2 | 15.7 1.2 | 1643 | SW | 220 | 0.00 | 8.68 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 4/28/26 | 72.7 4.0 | 1603 | 40.3 6.5 | 0614 | 45.7 0.4 | - | - | 3.8 | 13.5 1.1 | 1714 | W | 262 | 0.00 | 22.41 | 0.167 0.050 | 583 185 | 0 0 |
| Suscol Mtn (Ranch 93) | 4/28/26 | 72.2 5.0 | 1545 | 46.7 0.1 | 0109 | 45.6 0.6 | 92 2 | 32 17 | 3.6 | 17.9 3.7 | 1715 | WNW | 282 | 0.00 | 18.04 | - | - | 0 0 |
| Suscol Upper (Ranch 92) | 4/28/26 | 71.4 6.8 | 1656 | 46.3 0.1 | 0101 | 45.8 0.5 | 94 1 | 33 11 | 1.9 | 16.5 1.3 | 1723 | SW | 236 | 0.00 | 21.98 | - | - | 0 0 |
| Stanly (Ranch 45) | 4/28/26 | 73.2 6.8 | 1623 | 42.7 4.8 | 0639 | 46.0 0.5 | 95 3 | 30 15 | 4.3 | 14.5 0.9 | 1701 | WSW | 247 | 0.00 | 22.49 | 0.196 0.052 | 693 196 | 0 0 |
| Carneros Upper (Ranch 81) | 4/28/26 | 73.3 6.5 | 1551 | 47.3 0.3 | 0449 | 46.2 0.9 | - | - | 5.3 | 21.8 1.8 | 1915 | W | 272 | - | - | - | - | 0 0 |
| Carneros (Mitsuko) | 4/28/26 | 73.5 5.3 | 1624 | 38.0 7.0 | 0604 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 4/28/26 | 76.0 8.9 | 1620 | 40.3 6.9 | 0624 | 45.3 1.5 | 100 9 | 0 42 | 1.3 | 10.3 3.8 | 1218 | S | 186 | 0.00 | 19.29 | 0.152 0.049 | 552 181 | 0 0 |
| Carneros (Milton Rd) | 4/28/26 | 72.6 4.3 | 1640 | 38.9 7.7 | 0629 | 46.0 0.7 | 96 5 | 34 13 | - | - | - | - | 0.00 | 18.07 | - | - | 0 0 |
| Max | 76.8 | - | 47.3 | - | 49.8 | 100 | 45 | 5.3 | 21.8 | - | - | 0.00 | 33.62 | 0.225 | 1,016 | - | |
| Avg | - | - | - | - | 45.2 | - | - | 2.7 | - | - | - | - | - | - | - | - | |
| Min | 67.0 | - | 36.1 | - | 33.4 | 84 | 0 | 1.3 | 10.0 | - | - | 0.00 | 8.68 | 0.091 | 290 | - |