| 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 | 4/5/26 | 76.7 1.8 | 1511 | 42.9 1.3 | 0229 | - | - | - | - | - | - | - | 0.00 | 43.59 | - | - | 90 20 |
| Pope Valley (Weeks Lake) | 4/5/26 | 82.4 2.9 | 1559 | 36.2 1.3 | 0646 | 42.3 3.6 | 100 0 | 14 0 | 1.2 | 12.1 1.3 | 1422 | ESE | 118 | 0.00 | 22.17 | 0.154 0.007 | 489 34 | 100 0 |
| Whiskey River Winery | 12/13/25 | 52.8 3.6 | 1548 | 37.3 0.3 | 0759 | 36.3 2.0 | 88 11 | 68 4 | 0.0 | 0.0 2.4 | 0001 | SE | 128 | 0.00 | 7.07 | - | - | - |
| Dollarhide Base | 4/5/26 | 85.9 4.6 | 1634 | 43.1 4.8 | 0613 | 45.9 5.1 | 98 0 | 16 2 | 2.7 | 15.2 1.9 | 1444 | NNE | 24 | 0.00 | 19.65 | 0.201 0.010 | 594 1 | 100 0 |
| Dollarhide 1AS Remote | 4/5/26 | 85.2 1.9 | 1627 | 37.4 2.5 | 0654 | 44.2 3.8 | 96 0 | 16 2 | 1.5 | 13.7 0.6 | 1456 | NE | 47 | - | - | - | - | 100 0 |
| Dollarhide 17B Remote | 4/5/26 | 85.2 1.5 | 1640 | 39.6 4.3 | 0638 | 46.1 4.2 | 100 0 | 20 2 | - | - | - | - | - | - | - | - | 100 0 |
| Dollarhide 18A Remote | 4/5/26 | 85.9 1.7 | 1637 | 35.4 1.7 | 0350 | 43.8 4.1 | 100 0 | 18 0 | - | - | - | - | - | - | - | - | 100 0 |
| Angwin | 4/5/26 | 75.5 2.2 | 1440 | 57.5 6.0 | 0308 | 35.3 6.7 | 44 2 | 17 2 | 3.2 | 12.4 4.6 | 1500 | SSE | 147 | 0.00 | 39.79 | 0.062 0.019 | 0 0 | 60 20 |
| Lower Angwin (Pioneer) | 4/5/26 | 77.8 3.1 | 1512 | 46.5 0.6 | 0125 | - | - | - | 2.6 | 12.1 1.0 | 1445 | SSW | 213 | - | - | - | - | 70 20 |
| Deer Park | 4/5/26 | 84.2 2.0 | 1629 | 55.8 0.9 | 0643 | 40.5 7.2 | 55 7 | 13 3 | 2.5 | 12.4 7.2 | 1244 | SSE | 151 | 0.00 | 24.32 | 0.158 0.012 | 399 5 | 100 0 |
| Lower Chiles Valley (Brown) | 4/5/26 | 83.7 2.9 | 1613 | 38.0 3.4 | 0330 | 42.1 4.3 | 100 3 | 15 2 | 2.0 | 12.6 0.6 | 1210 | ESE | 104 | 0.00 | 21.36 | 0.178 0.004 | 564 6 | 100 20 |
| Moss Creek Vineyard/Reservior | 4/5/26 | 86.2 4.4 | 1633 | 41.6 3.1 | 0733 | 42.2 3.9 | 95 0 | 14 1 | - | - | - | - | 0.00 | 23.90 | - | - | 60 20 |
| Max | 86.2 | - | 57.5 | - | 46.1 | 100 | 20 | 3.2 | 15.2 | - | - | 0.00 | 43.59 | 0.201 | 594 | - | |
| Avg | - | - | - | - | 42.5 | - | - | 2.2 | - | - | - | - | - | - | - | - | |
| Min | 75.5 | - | 35.4 | - | 35.3 | 44 | 13 | 1.2 | 12.1 | - | - | 0.00 | 19.65 | 0.062 | 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 | 4/5/26 | 90.4 2.4 | 1521 | 44.0 4.1 | 0628 | 45.8 4.5 | 95 1 | 18 1 | - | - | - | - | 0.00 | 28.45 | - | - | 0 0 |
| Fotsch (Maple Lane) | 3/9/26 | 75.9 3.7 | 1625 | 41.4 5.5 | 0743 | 44.5 1.8 | 97 3 | 26 3 | 3.3 | 15.6 1.3 | 1413 | WSW | 249 | 0.00 | 26.01 | - | - | 0 0 |
| Diamond Mtn (Schramsberg) | 4/5/26 | 82.1 3.2 | 1624 | 59.6 3.2 | 0659 | 38.9 7.6 | 53 11 | 15 0 | - | - | - | - | 0.00 | 27.04 | - | - | 100 20 |
| Diamond Mtn (McEachran) | 4/5/26 | 84.6 1.4 | 1616 | 53.7 4.5 | 0703 | 41.6 5.7 | 67 1 | 13 1 | - | - | - | - | - | - | - | - | 100 0 |
| St. Helena-North | 4/5/26 | 86.0 2.9 | 1647 | 45.3 3.8 | 0642 | 39.8 5.0 | 86 3 | 9 2 | 2.4 | 13.8 1.1 | 1250 | ESE | 118 | 0.00 | 27.35 | 0.167 0.005 | 466 10 | 100 0 |
| St. Helena (NVV Office) | 4/5/26 | 87.3 2.6 | 1625 | 46.6 4.9 | 0632 | - | - | - | 1.3 | 10.9 0.1 | 1356 | ENE | 78 | 0.00 | 24.05 | - | - | 90 10 |
| Tiara Fria (East St. Helena) | 4/5/26 | 85.7 1.7 | 1638 | 45.6 4.7 | 0653 | 42.8 5.4 | 91 0 | 13 2 | 2.3 | 12.0 3.4 | 1528 | ESE | 111 | 0.00 | 22.33 | - | - | 100 0 |
| Rutherford Hill Estate | 4/5/26 | 86.8 1.2 | 1525 | 54.8 4.6 | 0643 | 41.7 7.5 | 61 6 | 13 2 | 1.6 | 10.3 2.8 | 1208 | SSW | 203 | 0.00 | 21.81 | 0.162 0.002 | 490 13 | 90 10 |
| Rutherford-North (Mee Ln) | 4/5/26 | 85.9 0.5 | 1724 | 45.2 4.9 | 0651 | 44.2 4.8 | 89 1 | 16 1 | 2.5 | 12.3 1.3 | 1447 | E | 94 | 0.00 | 20.92 | 0.175 0.006 | 506 10 | 100 0 |
| Rutherford (STS) | 4/5/26 | 87.2 1.6 | 1428 | 46.9 4.5 | 0220 | 45.6 4.8 | 89 1 | 17 1 | 2.6 | 12.6 0.7 | 1457 | ESE | 122 | 0.00 | 22.08 | 0.201 0.006 | 600 9 | 90 10 |
| Oakville-NE (Ranch 88) | 4/5/26 | 86.4 0.9 | 1658 | 44.0 3.7 | 0155 | 39.7 5.2 | 86 1 | 11 1 | 2.3 | 12.5 0.8 | 1234 | SSE | 168 | 0.00 | 21.48 | 0.197 0.008 | 562 7 | 0 0 |
| OV561-East | 4/5/26 | 89.6 2.5 | 1700 | 45.9 3.2 | 0304 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| Oakville | 4/5/26 | 85.5 0.8 | 1639 | 44.0 3.1 | 0256 | 42.4 5.5 | 89 2 | 13 0 | 2.7 | 13.4 1.1 | 1450 | SSE | 148 | 0.00 | 21.93 | 0.195 0.004 | 568 8 | 100 10 |
| OV518-West | 4/5/26 | 86.1 3.2 | 1805 | 45.9 4.2 | 0329 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| To Kalon Remote (TKKE) | 4/5/26 | 86.8 1.0 | 1623 | 45.5 3.7 | 0217 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| To Kalon | 4/5/26 | 86.1 1.6 | 1547 | 44.8 4.5 | 0238 | 42.4 5.4 | 86 5 | 14 2 | 2.8 | 12.7 1.4 | 1409 | SE | 127 | 0.00 | 23.88 | 0.186 0.002 | 533 2 | 100 0 |
| To Kalon Remote (TKN5) | 4/5/26 | 87.3 2.6 | 1547 | 44.2 4.4 | 0240 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| Yountville (Ranch 67) | 4/5/26 | 85.3 1.9 | 1605 | 45.1 3.8 | 0210 | 41.3 5.2 | 86 3 | 11 3 | 3.0 | 12.7 0.9 | 1138 | SSE | 150 | 0.00 | 20.20 | 0.195 0.002 | 592 10 | 100 10 |
| Stags Leap Dist (Silverado Vineyards) | 4/5/26 | 84.4 0.1 | 1704 | 46.5 4.0 | 0331 | 42.5 5.6 | 86 2 | 12 3 | 1.8 | 12.4 0.9 | 1138 | SE | 141 | 0.00 | 24.16 | 0.180 0.001 | 553 2 | 90 20 |
| Borreo (Soda Canyon) | 4/5/26 | 83.4 1.6 | 1531 | 45.0 0.8 | 0648 | 41.1 4.8 | 82 6 | 13 2 | 1.8 | 9.3 6.8 | 1504 | S | 186 | 0.00 | 24.10 | 0.172 0.013 | 554 30 | 60 20 |
| Wappo Hill Floor | 4/5/26 | 86.3 0.7 | 1556 | 41.1 4.0 | 0249 | 42.8 4.4 | 100 0 | 14 1 | 1.9 | 11.7 0.3 | 1602 | WSW | 241 | 0.00 | 23.50 | 0.176 0.005 | 520 18 | 80 10 |
| Stags Leap Dist (Chimney Rock) | 4/5/26 | 85.7 2.2 | 1614 | 42.0 3.0 | 0640 | 44.5 4.0 | 96 2 | 18 2 | 2.1 | 11.8 0.5 | 1410 | S | 185 | 0.00 | 22.77 | 0.164 0.004 | 483 20 | 100 10 |
| Yountville-South (Ranch 87) | 4/5/26 | 85.8 1.8 | 1549 | 43.4 3.7 | 0704 | 43.3 4.7 | 94 3 | 13 2 | 1.8 | 10.3 0.8 | 1438 | SW | 215 | 0.00 | 23.91 | 0.170 0.002 | 489 6 | 30 10 |
| Yountville-SE (Ranch 85) | 4/5/26 | 86.3 1.3 | 1631 | 43.7 3.0 | 0710 | 44.3 4.4 | 93 2 | 15 0 | 0.9 | 9.4 1.2 | 1129 | S | 169 | 0.00 | 22.44 | - | 0 0 | 80 10 |
| Oak Knoll-East (Ranch 53) | 4/3/26 | 80.5 10.3 | 1722 | 45.0 4.7 | 0045 | 27.6 11.1 | 76 19 | 10 11 | 5.2 | 21.4 7.7 | 0509 | NNW | 341 | 0.00 | 20.76 | 0.206 0.064 | 539 11 | 50 20 |
| Napa-NW (Ranch 54) | 4/5/26 | 87.6 3.2 | 1550 | 44.9 3.0 | 0703 | 41.6 4.8 | 85 1 | 11 3 | 1.6 | 9.9 1.7 | 1110 | SSE | 159 | 0.00 | 23.03 | - | 0 0 | 80 10 |
| Napa-North (Ranch 29) | 4/5/26 | 86.7 1.9 | 1523 | 43.5 3.1 | 0645 | 43.9 3.6 | 100 0 | 13 2 | 1.4 | 10.4 1.5 | 1545 | S | 179 | 0.00 | 20.62 | 0.125 0.001 | 333 4 | 80 10 |
| Max | 90.4 | - | 59.6 | - | 45.8 | 100 | 18 | 3.0 | 13.8 | - | - | 0.00 | 28.45 | 0.201 | 600 | - | |
| Avg | - | - | - | - | 42.5 | - | - | 2.0 | - | - | - | - | - | - | - | - | |
| Min | 82.1 | - | 41.1 | - | 38.9 | 53 | 9 | 0.9 | 9.3 | - | - | 0.00 | 20.20 | 0.125 | 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 | 4/5/26 | 77.9 1.3 | 1108 | 60.6 5.6 | 0232 | 35.2 3.8 | 39 3 | 18 1 | 1.9 | 10.3 0.0 | 1340 | SSW | 200 | 0.00 | 29.86 | 0.161 0.061 | 456 314 | 100 20 |
| Mount George (Napa East) | 4/5/26 | 85.6 3.0 | 1358 | 45.0 4.1 | 0711 | 45.0 5.1 | 94 3 | 14 2 | 1.1 | 8.7 1.7 | 1648 | WSW | 250 | 0.00 | 12.38 | 0.163 0.007 | 520 38 | 100 10 |
| Napa-East (Palmaz 300') | 4/5/26 | 87.3 3.0 | 1611 | 45.4 2.0 | 0651 | 42.9 4.2 | 89 4 | 12 3 | 1.8 | 10.8 0.9 | 1432 | SW | 219 | 0.00 | 18.82 | 0.158 0.014 | 467 43 | 80 10 |
| Napa-East (Palmaz 1200') | 4/5/26 | 80.6 2.8 | 1545 | 47.9 1.1 | 0623 | 41.3 4.6 | 84 10 | 16 2 | 3.1 | 11.0 0.7 | 1200 | E | 96 | - | - | 0.168 0.008 | 514 36 | 90 20 |
| Napa-East (Palmaz 1400') | 4/5/26 | 79.6 2.9 | 1553 | 45.8 1.8 | 0229 | 42.0 4.3 | 80 2 | 16 4 | 2.4 | 14.3 0.5 | 1333 | NNE | 31 | 0.00 | 25.60 | 0.166 0.010 | 518 31 | 90 20 |
| Wooden Valley | 4/5/26 | 81.9 2.6 | 1555 | 38.4 3.3 | 0657 | 43.0 0.8 | 98 0 | 18 1 | 1.0 | 9.1 3.7 | 1325 | SSW | 205 | 0.00 | 24.50 | 0.157 0.010 | 524 32 | 60 20 |
| Napa-West Upper (Truchard) | 4/5/26 | 87.0 1.4 | 1505 | 51.0 5.2 | 0459 | 42.6 4.9 | 74 4 | 14 0 | 2.6 | 16.2 2.1 | 1430 | S | 177 | 0.00 | 20.48 | 0.181 0.007 | 520 41 | 80 10 |
| Napa-West Lower (Truchard) | 4/5/26 | 91.5 2.9 | 1603 | 40.6 2.8 | 0641 | 43.6 3.1 | 98 3 | 13 1 | - | - | - | - | - | - | - | - | 50 10 |
| Napa-South (Toyon Farms) | 4/5/26 | 87.3 1.2 | 1550 | 47.5 3.6 | 0639 | 48.2 3.4 | 88 2 | 19 2 | 1.9 | 10.3 1.5 | 1414 | SSE | 157 | 0.00 | 14.27 | 0.102 0.005 | 263 4 | 80 10 |
| Toyon Remote 1 | 4/5/26 | 85.8 1.2 | 1609 | 39.6 4.1 | 0727 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 4/5/26 | 85.6 1.3 | 1632 | 42.0 3.6 | 0652 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 4/5/26 | 87.7 3.0 | 1549 | 42.0 3.3 | 0638 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 4/5/26 | 85.7 2.0 | 1651 | 44.4 5.1 | 0638 | 43.3 3.2 | 87 7 | 14 2 | 1.8 | 10.4 0.7 | 1419 | SSE | 154 | 0.00 | 19.68 | 0.171 0.003 | 539 21 | 80 10 |
| Carneros (Saintsbury) | 4/5/26 | 85.3 3.6 | 1609 | 44.4 2.9 | 0656 | 44.4 3.5 | 86 1 | 17 1 | 2.0 | 10.4 2.7 | 1401 | SE | 136 | 0.00 | 5.97 | - | - | 60 60 |
| Suscol Lower (Ranch 35) | 4/5/26 | 85.8 2.9 | 1548 | 44.2 4.2 | 0639 | 43.0 3.4 | - | - | 3.3 | 14.6 1.0 | 1325 | ESE | 117 | 0.00 | 18.65 | 0.170 0.011 | 468 47 | 100 10 |
| Suscol Mtn (Ranch 93) | 4/5/26 | 86.9 3.7 | 1506 | 57.3 0.3 | 0700 | 39.0 4.4 | 55 9 | 14 2 | 3.1 | 16.1 2.6 | 1425 | SSE | 150 | 0.00 | 14.30 | - | - | 100 10 |
| Suscol Upper (Ranch 92) | 4/5/26 | 86.7 4.3 | 1617 | 57.3 0.6 | 0101 | 39.6 4.3 | 58 7 | 13 3 | 1.5 | 13.1 2.7 | 1344 | ENE | 61 | 0.00 | 18.55 | - | - | 100 0 |
| Stanly (Ranch 45) | 4/5/26 | 89.3 3.9 | 1553 | 44.3 1.8 | 0656 | 44.1 2.8 | 93 3 | 14 1 | 3.2 | 11.4 2.0 | 1310 | SE | 131 | 0.00 | 20.12 | 0.191 0.011 | 551 48 | 80 10 |
| Carneros Upper (Ranch 81) | 4/5/26 | 86.0 1.8 | 1600 | 54.2 4.6 | 0546 | 40.7 4.2 | - | - | 3.7 | 15.6 2.6 | 2036 | W | 259 | - | - | - | - | 100 10 |
| Carneros (Mitsuko) | 4/5/26 | 86.1 2.4 | 1531 | 40.5 5.7 | 0648 | - | - | - | - | - | - | - | - | - | - | - | 60 60 |
| Carneros Lower (Ranch 81) | 4/5/26 | 86.9 4.0 | 1621 | 41.9 2.8 | 0657 | 43.9 1.7 | 100 0 | 0 0 | 1.0 | 8.8 2.8 | 1416 | SSE | 157 | 0.00 | 16.94 | 0.138 0.010 | 442 24 | 60 60 |
| Carneros (Milton Rd) | 4/5/26 | 85.9 2.9 | 1536 | 40.3 2.1 | 0701 | 43.5 2.5 | 93 2 | 15 1 | - | - | - | - | 0.00 | 17.12 | - | - | 70 20 |
| Max | 91.5 | - | 60.6 | - | 48.2 | 100 | 19 | 3.7 | 16.2 | - | - | 0.00 | 29.86 | 0.191 | 551 | - | |
| Avg | - | - | - | - | 42.5 | - | - | 2.2 | - | - | - | - | - | - | - | - | |
| Min | 77.9 | - | 38.4 | - | 35.2 | 39 | 0 | 1.0 | 8.7 | - | - | 0.00 | 5.97 | 0.102 | 263 | - |