| 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 | 5/12/26 | 79.2 5.8 | 1546 | 46.0 5.4 | 0059 | - | - | - | - | - | - | - | 0.00 | 50.09 | - | - | 100 0 |
| Pope Valley (Weeks Lake) | 5/12/26 | 84.6 7.7 | 1500 | 44.7 2.6 | 0609 | 50.3 3.2 | 100 0 | 17 1 | 2.0 | 14.7 3.7 | 1221 | S | 176 | 0.00 | 26.24 | 0.206 0.002 | 610 2 | 90 20 |
| Dollarhide Base | 5/12/26 | 85.1 7.9 | 1503 | 51.3 0.4 | 0609 | 54.6 2.8 | 99 1 | 31 3 | 3.7 | 17.2 2.0 | 1721 | SSW | 196 | 0.00 | 23.14 | 0.234 0.004 | 690 9 | 90 20 |
| Dollarhide 1AS Remote | 5/12/26 | 86.3 6.5 | 1444 | 47.0 1.1 | 0608 | 53.0 3.9 | 94 0 | 30 5 | 2.8 | 15.1 1.8 | 1800 | S | 175 | - | - | - | - | 90 20 |
| Dollarhide 18A Remote | 5/12/26 | 83.9 8.4 | 1518 | 44.0 1.7 | 0617 | 52.4 4.7 | 100 0 | 27 0 | - | - | - | - | - | - | - | - | 70 20 |
| Angwin | 5/12/26 | 76.1 6.5 | 1044 | 51.4 12.3 | 2350 | 35.8 14.2 | 77 10 | 8 13 | 3.0 | 15.2 3.9 | 1628 | SE | 133 | 0.00 | 45.11 | 0.051 0.012 | 0 0 | 80 20 |
| Lower Angwin (Pioneer) | 5/12/26 | 75.1 9.8 | 1441 | 46.2 1.2 | 0612 | - | - | - | 2.5 | 14.9 2.3 | 1548 | SW | 233 | - | - | - | - | 100 0 |
| Deer Park | 5/12/26 | 80.3 7.4 | 1537 | 51.2 1.1 | 0610 | 53.2 3.1 | 99 0 | 46 11 | 3.2 | 15.6 1.3 | 1707 | SE | 143 | 0.00 | 28.72 | 0.143 0.017 | 427 6 | 90 20 |
| Lower Chiles Valley (Brown) | 5/12/26 | 78.9 9.6 | 1625 | 47.3 1.4 | 0440 | 52.6 2.3 | 100 0 | 32 10 | 3.4 | 13.9 0.3 | 1644 | NW | 320 | 0.01 | 25.89 | 0.185 0.026 | 642 12 | 100 20 |
| Moss Creek Vineyard/Reservior | 5/12/26 | 86.1 6.8 | 1408 | 49.2 0.7 | 0609 | 51.0 3.3 | 100 0 | 24 3 | - | - | - | - | 0.00 | 27.05 | - | - | 10 10 |
| Max | 86.3 | - | 51.4 | - | 54.6 | 100 | 46 | 3.7 | 17.2 | - | - | 0.01 | 50.09 | 0.234 | 690 | - | |
| Avg | - | - | - | - | 50.4 | - | - | 3.0 | - | - | - | - | - | - | - | - | |
| Min | 75.1 | - | 44.0 | - | 35.8 | 77 | 8 | 2.0 | 13.9 | - | - | 0.00 | 23.14 | 0.051 | 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 | 5/12/26 | 83.4 13.7 | 1458 | 50.8 2.9 | 0645 | 53.6 4.2 | 98 1 | 35 11 | - | - | - | - | 0.00 | 32.79 | - | - | 50 20 |
| Diamond Mtn (Schramsberg) | 5/12/26 | 80.7 7.0 | 1556 | 48.2 2.3 | 0525 | 51.3 4.7 | 100 0 | 24 0 | - | - | - | - | 0.00 | 31.20 | - | - | 90 20 |
| Diamond Mtn (McEachran) | 5/12/26 | 80.8 8.0 | 1652 | 49.8 2.7 | 0706 | 51.6 5.1 | 100 0 | 20 13 | - | - | - | - | - | - | - | - | 90 20 |
| St. Helena-North | 5/12/26 | 81.5 7.3 | 1520 | 51.2 2.6 | 0058 | 52.2 3.4 | 100 0 | 34 5 | 2.7 | 13.2 0.9 | 1659 | SSE | 158 | 0.00 | 31.03 | 0.166 0.013 | 519 8 | 100 10 |
| St. Helena (NVV Office) | 5/12/26 | 82.1 8.5 | 1525 | 52.4 2.0 | 0057 | - | - | - | 1.7 | 11.4 2.3 | 1639 | SE | 144 | 0.00 | 28.47 | - | - | 100 10 |
| Tiara Fria (East St. Helena) | 5/12/26 | 78.9 9.4 | 1514 | 52.6 1.0 | 0059 | 53.6 2.7 | 97 0 | 45 14 | 2.8 | 13.2 1.4 | 1729 | SE | 144 | 0.00 | 26.44 | - | - | 100 10 |
| Rutherford Hill Estate | 5/12/26 | 78.8 10.7 | 1507 | 51.2 2.1 | 0058 | 54.1 2.7 | 100 0 | 47 16 | 1.7 | 15.8 2.6 | 1622 | ESE | 119 | 0.00 | 25.00 | 0.147 0.023 | 499 36 | 100 10 |
| Rutherford-North (Mee Ln) | 5/12/26 | 78.3 9.6 | 1455 | 47.8 2.2 | 0051 | 52.6 2.7 | 96 1 | 48 17 | 3.5 | 19.7 5.3 | 1647 | ESE | 122 | 0.00 | 24.52 | 0.155 0.027 | 490 27 | 100 10 |
| Rutherford (STS) | 5/12/26 | 80.1 8.8 | 1453 | 49.0 2.9 | 0056 | 54.0 2.6 | 91 1 | 51 16 | 2.7 | 16.5 3.5 | 1724 | SE | 130 | 0.00 | 25.82 | 0.166 0.032 | 549 50 | 100 10 |
| Oakville-NE (Ranch 88) | 5/12/26 | 78.8 9.7 | 1436 | 49.4 4.0 | 0058 | 53.0 2.6 | 99 0 | 43 18 | 2.9 | 17.4 2.8 | 1717 | S | 171 | 0.00 | 24.92 | 0.162 0.026 | 519 30 | 0 0 |
| OV561-East | 5/12/26 | 77.2 11.9 | 1518 | 51.8 2.4 | 0042 | - | - | - | - | - | - | - | - | - | - | - | 50 10 |
| Oakville | 5/12/26 | 76.7 10.4 | 1437 | 51.2 2.4 | 0059 | 53.3 2.7 | 97 0 | 47 22 | 4.0 | 18.2 2.8 | 1654 | SSE | 150 | 0.00 | 25.51 | 0.168 0.028 | 561 20 | 20 10 |
| OV518-West | 5/12/26 | 77.1 10.2 | 1437 | 51.6 1.6 | 0059 | - | - | - | - | - | - | - | - | - | - | - | 30 10 |
| To Kalon Remote (TKKE) | 5/12/26 | 79.0 11.1 | 1432 | 49.1 4.8 | 0059 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| To Kalon | 5/12/26 | 77.4 11.0 | 1444 | 49.7 3.5 | 0101 | 54.1 2.6 | 99 0 | 47 17 | 3.8 | 17.0 3.7 | 1628 | SE | 140 | 0.00 | 27.70 | 0.153 0.034 | 482 52 | 50 10 |
| To Kalon Remote (TKN5) | 5/12/26 | 79.8 11.3 | 1536 | 50.7 3.1 | 0101 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| Yountville (Ranch 67) | 5/12/26 | 74.8 11.4 | 1427 | 50.9 2.6 | 0049 | 52.2 2.8 | 97 1 | 47 19 | 3.8 | 18.1 4.8 | 1520 | SE | 133 | 0.00 | 23.62 | 0.165 0.034 | 578 37 | 0 0 |
| Stags Leap Dist (Silverado Vineyards) | 5/12/26 | 75.1 11.7 | 1546 | 51.1 2.5 | 0052 | 52.3 2.9 | 96 0 | 47 16 | 3.6 | 19.2 3.9 | 1707 | SSE | 168 | 0.00 | 27.62 | 0.155 0.030 | 514 39 | 0 10 |
| Borreo (Soda Canyon) | 5/12/26 | 72.4 11.4 | 1422 | 46.7 4.7 | 0046 | 51.7 3.3 | 99 0 | 51 15 | 2.1 | 11.0 2.3 | 1649 | S | 184 | 0.00 | 27.52 | 0.154 0.038 | 558 74 | 30 20 |
| Wappo Hill Floor | 5/12/26 | 75.6 12.8 | 1533 | 50.9 1.2 | 0059 | 52.9 3.3 | 100 0 | 49 14 | 3.5 | 15.8 3.7 | 1710 | SE | 137 | 0.00 | 26.75 | 0.160 0.033 | 544 44 | 40 10 |
| Stags Leap Dist (Chimney Rock) | 5/12/26 | 74.6 12.1 | 1358 | 50.8 3.7 | 0101 | 54.6 3.2 | 100 0 | 55 13 | 3.6 | 16.4 1.1 | 1704 | SE | 133 | 0.00 | 26.14 | 0.141 0.029 | 482 39 | 0 0 |
| Yountville-South (Ranch 87) | 5/12/26 | 76.2 12.7 | 1558 | 50.0 3.8 | 0058 | 53.8 3.0 | 100 0 | 44 14 | 2.6 | 13.8 3.3 | 1649 | ESE | 102 | 0.00 | 27.39 | 0.160 0.032 | 544 51 | 100 10 |
| Yountville-SE (Ranch 85) | 5/12/26 | 74.9 12.5 | 1412 | 49.9 4.1 | 0059 | 53.6 3.1 | 100 0 | 50 13 | 3.3 | 16.5 4.7 | 1646 | SSE | 160 | 0.00 | 25.69 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 5/12/26 | 76.1 11.3 | 1512 | 49.8 4.2 | 0059 | 52.3 3.2 | 96 1 | 44 9 | 2.5 | 15.6 3.3 | 1653 | SE | 133 | 0.00 | 24.30 | 0.162 0.031 | 555 49 | 40 10 |
| Napa-NW (Ranch 54) | 5/12/26 | 78.1 12.4 | 1515 | 50.4 3.4 | 0059 | 52.8 3.1 | 100 0 | 41 12 | 0.6 | 8.3 0.5 | 1758 | SSE | 154 | 0.00 | 26.77 | - | 0 0 | 100 10 |
| Napa-North (Ranch 29) | 5/12/26 | 72.6 13.8 | 1449 | 52.0 2.5 | 0732 | 53.3 3.4 | 100 0 | 51 11 | 2.4 | 15.3 3.3 | 1649 | S | 184 | 0.00 | 25.18 | 0.121 0.014 | 414 12 | 20 10 |
| Max | 83.4 | - | 52.6 | - | 54.6 | 100 | 55 | 4.0 | 19.7 | - | - | 0.00 | 32.79 | 0.168 | 578 | - | |
| Avg | - | - | - | - | 53.0 | - | - | 2.8 | - | - | - | - | - | - | - | - | |
| Min | 72.4 | - | 46.7 | - | 51.3 | 91 | 20 | 0.6 | 8.3 | - | - | 0.00 | 23.62 | 0.121 | 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 | 5/12/26 | 75.5 7.4 | 1559 | 53.8 1.0 | 0032 | 48.9 4.5 | 82 14 | 24 2 | 1.5 | 10.4 0.2 | 2209 | NW | 316 | 0.00 | 34.19 | 0.324 0.041 | 1,361 9 | 20 10 |
| Mount George (Napa East) | 5/12/26 | 74.8 12.1 | 1530 | 52.2 2.7 | 0101 | 56.2 1.1 | 100 1 | 58 24 | 1.9 | 11.3 2.0 | 1618 | SSE | 150 | 0.00 | 17.04 | 0.150 0.037 | 526 80 | 20 10 |
| Napa-East (Palmaz 300') | 5/12/26 | 74.4 12.8 | 1513 | 51.5 1.6 | 0059 | 52.8 3.0 | 100 0 | 53 22 | 2.1 | 13.7 4.7 | 1457 | SE | 125 | 0.00 | 23.29 | 0.145 0.021 | 508 9 | 0 0 |
| Napa-East (Palmaz 1200') | 5/12/26 | 68.1 13.3 | 1508 | 47.9 2.6 | 2308 | 45.0 4.4 | 100 0 | 9 32 | 2.5 | 13.9 2.6 | 1408 | NNW | 333 | - | - | 0.153 0.040 | 592 71 | 0 0 |
| Napa-East (Palmaz 1400') | 5/12/26 | 68.7 13.3 | 1506 | 48.0 2.2 | 0603 | 51.7 4.1 | 100 0 | 62 24 | 3.1 | 15.0 5.1 | 1739 | S | 191 | 0.00 | 30.80 | 0.155 0.045 | 614 43 | 10 10 |
| Wooden Valley | 5/12/26 | 72.7 13.0 | 1557 | 50.5 6.0 | 0458 | 50.5 3.0 | 94 4 | 46 18 | 4.0 | 17.8 6.2 | 1100 | WSW | 240 | 0.00 | 29.11 | 0.186 0.034 | 677 1 | 60 10 |
| Napa-West Upper (Truchard) | 5/12/26 | 74.6 10.7 | 1439 | 49.8 2.9 | 0702 | 3.2 3.4 | 100 0 | 0 0 | 4.5 | 20.0 6.6 | 1748 | SSW | 196 | 0.00 | 24.41 | 0.175 0.032 | 543 84 | 20 10 |
| Napa-West Lower (Truchard) | 5/12/26 | 76.5 10.0 | 1437 | 50.4 1.4 | 0059 | 52.0 3.7 | 100 5 | 45 4 | - | - | - | - | - | - | - | - | 70 10 |
| Napa-South (Toyon Farms) | 5/12/26 | 72.8 10.5 | 1510 | 51.2 2.9 | 0645 | 54.1 4.1 | 100 1 | 59 7 | 3.4 | 16.8 5.4 | 1641 | SSE | 167 | 0.00 | 18.34 | 0.085 0.021 | 309 23 | 10 10 |
| Toyon Remote 1 | 5/12/26 | 75.7 8.6 | 1508 | 51.2 1.6 | 2311 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 5/12/26 | 72.7 11.0 | 1515 | 51.7 2.8 | 0630 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 5/12/26 | 76.7 8.8 | 1517 | 51.9 2.2 | 0636 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 5/12/26 | 74.4 10.7 | 1427 | 51.0 1.6 | 0640 | 51.6 3.7 | 97 1 | 47 7 | 2.6 | 13.7 3.5 | 1323 | SE | 143 | 0.00 | 23.58 | 0.156 0.035 | 555 68 | 10 10 |
| Carneros (Saintsbury) | 5/12/26 | 73.0 9.3 | 1502 | 47.7 4.5 | 0716 | 51.1 4.2 | 100 0 | 52 6 | 5.4 | 19.5 7.4 | 1626 | SSE | 155 | 0.00 | 8.68 | - | - | 10 10 |
| Suscol Lower (Ranch 35) | 5/12/26 | 70.8 13.0 | 1506 | 50.8 2.6 | 0536 | 47.8 6.9 | - | - | 4.4 | 17.5 3.9 | 1623 | S | 190 | 0.00 | 22.84 | 0.136 0.047 | 474 109 | 10 10 |
| Suscol Mtn (Ranch 93) | 5/12/26 | 71.7 10.3 | 1516 | 48.0 0.5 | 0639 | 52.1 2.3 | 100 0 | 59 21 | 5.0 | 18.1 5.8 | 1732 | WNW | 294 | 0.00 | 18.60 | - | - | 10 10 |
| Suscol Upper (Ranch 92) | 5/12/26 | 69.1 13.7 | 1511 | 48.6 1.4 | 0618 | 51.6 3.3 | 100 0 | 3 0 | 2.6 | 16.0 7.3 | 1814 | WSW | 241 | 0.00 | 22.35 | - | - | 10 10 |
| Stanly (Ranch 45) | 5/12/26 | 71.1 11.2 | 1505 | 49.2 4.3 | 0545 | 51.1 3.8 | 95 2 | 51 9 | 5.5 | 19.2 4.5 | 1610 | SSW | 204 | 0.00 | 22.49 | 0.162 0.050 | 588 106 | 10 10 |
| Carneros Upper (Ranch 81) | 5/12/26 | 72.3 13.7 | 1434 | 49.7 3.1 | 0225 | 15.3 15.2 | - | - | 7.5 | 23.8 7.7 | 1814 | WSW | 247 | - | - | - | - | 10 10 |
| Carneros (Mitsuko) | 5/12/26 | 72.8 10.4 | 1500 | 50.6 1.4 | 0022 | - | - | - | - | - | - | - | - | - | - | - | 10 10 |
| Carneros Lower (Ranch 81) | 5/12/26 | 79.3 9.8 | 1555 | 51.0 1.2 | 0322 | 52.1 3.5 | 100 2 | 42 3 | 0.7 | 12.2 2.8 | 1422 | S | 173 | 0.00 | 19.42 | 0.141 0.027 | 491 66 | 0 0 |
| Carneros (Milton Rd) | 5/12/26 | 69.9 11.7 | 1434 | 51.5 3.6 | 0540 | 52.0 3.8 | 94 3 | 54 6 | - | - | - | - | 0.00 | 18.07 | - | - | 10 10 |
| Max | 79.3 | - | 53.8 | - | 56.2 | 100 | 62 | 7.5 | 23.8 | - | - | 0.00 | 34.19 | 0.324 | 1,361 | - | |
| Avg | - | - | - | - | 46.6 | - | - | 3.6 | - | - | - | - | - | - | - | - | |
| Min | 68.1 | - | 47.7 | - | 3.2 | 82 | 0 | 0.7 | 10.4 | - | - | 0.00 | 8.68 | 0.085 | 309 | - |