| 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 | 5/13/26 | 76.2 3.1 | 1651 | 41.5 4.5 | 0631 | - | - | - | - | - | - | - | 0.00 | 50.09 | - | - | 90 10 |
| Pope Valley (Weeks Lake) | 5/13/26 | 81.4 3.2 | 1614 | 41.2 3.5 | 0517 | 47.2 3.1 | 100 0 | 27 9 | 2.0 | 12.7 2.0 | 1727 | WSW | 239 | 0.00 | 26.24 | 0.199 0.007 | 624 14 | 100 10 |
| Dollarhide Base | 5/13/26 | 83.3 1.8 | 1525 | 48.3 3.1 | 0613 | 51.1 3.5 | 96 3 | 31 1 | 3.1 | 13.9 3.3 | 1803 | SW | 224 | 0.00 | 23.14 | 0.220 0.014 | 682 8 | 100 10 |
| Dollarhide 1AS Remote | 5/13/26 | 83.9 2.4 | 1719 | 46.3 0.7 | 0622 | 50.3 2.7 | 94 0 | 30 1 | 2.7 | 13.7 1.4 | 1815 | SW | 225 | - | - | - | - | 100 10 |
| Dollarhide 18A Remote | 5/13/26 | 82.7 1.2 | 1728 | 44.0 0.0 | 0612 | 50.0 2.4 | 98 2 | 31 5 | - | - | - | - | - | - | - | - | 90 20 |
| Angwin | 5/13/26 | 72.5 3.5 | 1655 | 48.4 3.0 | 0619 | 44.6 8.8 | 93 16 | 27 18 | 2.8 | 12.9 2.3 | 1752 | WNW | 303 | 0.00 | 45.11 | 0.035 0.016 | 0 0 | 70 10 |
| Lower Angwin (Pioneer) | 5/13/26 | 74.9 0.3 | 1547 | 43.8 2.3 | 0440 | - | - | - | 2.3 | 14.5 0.4 | 1741 | W | 270 | - | - | - | - | 90 10 |
| Deer Park | 5/13/26 | 80.5 0.2 | 1544 | 50.1 1.1 | 0152 | 48.2 5.0 | 93 6 | 29 17 | 4.6 | 18.7 3.2 | 0915 | NNW | 335 | 0.00 | 28.72 | 0.171 0.028 | 477 50 | 100 10 |
| Lower Chiles Valley (Brown) | 5/13/26 | 79.1 0.2 | 1510 | 46.7 0.5 | 0049 | 48.9 3.7 | 96 4 | 30 3 | 3.4 | 14.9 1.0 | 1114 | NW | 318 | 0.00 | 25.89 | 0.201 0.016 | 684 43 | 100 0 |
| Moss Creek Vineyard/Reservior | 5/13/26 | 81.0 5.1 | 1546 | 48.2 1.0 | 0512 | 48.4 2.6 | 94 6 | 28 4 | - | - | - | - | 0.00 | 27.05 | - | - | 30 20 |
| Max | 83.9 | - | 50.1 | - | 51.1 | 100 | 31 | 4.6 | 18.7 | - | - | 0.00 | 50.09 | 0.220 | 684 | - | |
| Avg | - | - | - | - | 48.6 | - | - | 3.0 | - | - | - | - | - | - | - | - | |
| Min | 72.5 | - | 41.2 | - | 44.6 | 93 | 27 | 2.0 | 12.7 | - | - | 0.00 | 23.14 | 0.035 | 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 | 5/13/26 | 84.5 1.1 | 1546 | 46.6 4.2 | 0530 | 49.8 3.8 | 99 1 | 30 5 | - | - | - | - | 0.00 | 32.79 | - | - | 70 20 |
| Diamond Mtn (Schramsberg) | 5/13/26 | 80.3 0.4 | 1616 | 49.3 1.1 | 0551 | 48.8 2.5 | 94 6 | 29 5 | - | - | - | - | 0.00 | 31.20 | - | - | 100 10 |
| Diamond Mtn (McEachran) | 5/13/26 | 79.0 1.8 | 1621 | 50.7 0.9 | 0311 | 48.5 3.1 | 93 7 | 29 9 | - | - | - | - | - | - | - | - | 100 10 |
| St. Helena-North | 5/13/26 | 84.8 3.3 | 1532 | 47.7 3.5 | 0421 | 47.0 5.2 | 100 0 | 22 12 | 1.8 | 13.2 0.0 | 1510 | WNW | 291 | 0.00 | 31.03 | 0.184 0.018 | 566 47 | 100 0 |
| St. Helena (NVV Office) | 5/13/26 | 84.7 2.6 | 1608 | 49.0 3.4 | 0433 | - | - | - | 1.6 | 10.4 1.1 | 0854 | N | 351 | 0.00 | 28.47 | - | - | 100 0 |
| Tiara Fria (East St. Helena) | 5/13/26 | 82.8 3.9 | 1608 | 47.2 5.4 | 0555 | 49.0 4.7 | 96 1 | 26 19 | 3.2 | 17.5 4.3 | 0930 | NW | 320 | 0.00 | 26.44 | - | - | 100 0 |
| Rutherford Hill Estate | 5/13/26 | 82.5 3.7 | 1503 | 48.7 2.5 | 0531 | 50.0 4.1 | 100 0 | 28 19 | 2.0 | 12.5 3.3 | 0936 | W | 270 | 0.00 | 25.00 | 0.184 0.037 | 591 93 | 100 0 |
| Rutherford-North (Mee Ln) | 5/13/26 | 82.7 4.4 | 1703 | 41.2 6.6 | 0552 | 48.3 4.2 | 100 4 | 28 20 | 2.8 | 14.5 5.3 | 0940 | NW | 325 | 0.00 | 24.52 | 0.195 0.040 | 605 115 | 100 0 |
| Rutherford (STS) | 5/13/26 | 82.5 2.4 | 1515 | 43.7 5.3 | 0611 | 50.4 3.6 | 90 1 | 34 18 | 2.2 | 13.4 3.1 | 1751 | ESE | 112 | 0.00 | 25.82 | 0.213 0.047 | 695 147 | 100 0 |
| Oakville-NE (Ranch 88) | 5/13/26 | 81.9 3.1 | 1436 | 43.3 6.1 | 0540 | 47.6 5.4 | 100 0 | 27 16 | 2.1 | 13.4 4.1 | 1750 | S | 176 | 0.00 | 24.92 | 0.207 0.045 | 651 133 | 0 0 |
| OV561-East | 5/13/26 | 82.0 4.8 | 1542 | 44.2 7.6 | 0607 | - | - | - | - | - | - | - | - | - | - | - | 70 20 |
| Oakville | 5/13/26 | 80.3 3.6 | 1429 | 43.6 7.6 | 0609 | 48.7 4.6 | 97 0 | 29 19 | 2.8 | 14.3 3.9 | 1707 | ESE | 109 | 0.00 | 25.51 | 0.214 0.046 | 689 128 | 40 20 |
| OV518-West | 5/13/26 | 79.3 2.2 | 1557 | 44.8 6.8 | 0600 | - | - | - | - | - | - | - | - | - | - | - | 50 20 |
| To Kalon Remote (TKKE) | 5/13/26 | 82.9 3.9 | 1557 | 43.4 5.8 | 0609 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| To Kalon | 5/13/26 | 81.6 4.2 | 1714 | 43.5 6.2 | 0611 | 49.5 4.6 | 99 0 | 31 16 | 2.1 | 12.6 4.3 | 1826 | SE | 132 | 0.00 | 27.70 | 0.196 0.043 | 631 149 | 70 20 |
| To Kalon Remote (TKN5) | 5/13/26 | 83.6 3.8 | 1604 | 43.7 7.0 | 0610 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| Yountville (Ranch 67) | 5/13/26 | 78.3 3.5 | 1611 | 43.3 7.6 | 0609 | 47.7 4.5 | 96 1 | 33 13 | 2.7 | 13.8 4.3 | 1359 | SE | 134 | 0.00 | 23.62 | 0.214 0.049 | 721 143 | 20 20 |
| Stags Leap Dist (Silverado Vineyards) | 5/13/26 | 78.0 2.9 | 1535 | 42.7 8.4 | 0615 | 48.0 4.2 | 96 0 | 34 13 | 2.4 | 14.7 4.6 | 1705 | S | 176 | 0.00 | 27.62 | 0.209 0.054 | 672 158 | 0 0 |
| Borreo (Soda Canyon) | 5/13/26 | 76.4 4.0 | 1613 | 42.5 4.2 | 0553 | 47.8 3.9 | 99 0 | 37 14 | 2.0 | 12.4 1.3 | 1424 | S | 180 | 0.00 | 27.52 | 0.205 0.051 | 707 149 | 20 10 |
| Wappo Hill Floor | 5/13/26 | 79.6 4.1 | 1551 | 41.8 9.1 | 0616 | 49.0 3.9 | 100 0 | 35 14 | 2.5 | 13.6 2.2 | 1620 | SE | 145 | 0.00 | 26.75 | 0.205 0.045 | 666 122 | 60 20 |
| Stags Leap Dist (Chimney Rock) | 5/13/26 | 78.6 4.0 | 1607 | 42.3 8.6 | 0545 | 50.8 3.8 | 100 0 | 42 14 | 2.6 | 17.0 0.6 | 1606 | SE | 142 | 0.00 | 26.14 | 0.186 0.045 | 610 127 | 20 20 |
| Yountville-South (Ranch 87) | 5/13/26 | 80.1 3.9 | 1555 | 44.3 5.8 | 0614 | 50.2 3.6 | 100 0 | 35 9 | 2.0 | 13.3 0.5 | 1345 | SSW | 211 | 0.00 | 27.39 | 0.204 0.044 | 684 140 | 100 0 |
| Yountville-SE (Ranch 85) | 5/13/26 | 79.2 4.3 | 1514 | 45.0 4.9 | 0620 | 49.9 3.7 | 100 0 | 36 14 | 2.0 | 11.0 5.6 | 1822 | S | 169 | 0.00 | 25.69 | - | 0 0 | 20 20 |
| Oak Knoll-East (Ranch 53) | 5/13/26 | 80.1 4.0 | 1539 | 44.8 5.0 | 0610 | 48.8 3.4 | 95 1 | 33 11 | 1.8 | 12.4 3.1 | 1555 | SSW | 202 | 0.00 | 24.30 | 0.209 0.047 | 705 150 | 60 20 |
| Napa-NW (Ranch 54) | 5/13/26 | 80.5 2.4 | 1535 | 45.4 5.0 | 0610 | 49.6 3.2 | 100 0 | 32 8 | 1.0 | 12.0 3.7 | 1613 | SW | 225 | 0.00 | 26.77 | - | 0 0 | 100 0 |
| Napa-North (Ranch 29) | 5/13/26 | 77.3 4.7 | 1619 | 45.3 6.7 | 0612 | 50.0 3.3 | 100 0 | 37 14 | 1.8 | 13.4 2.0 | 1532 | SSE | 149 | 0.00 | 25.18 | 0.133 0.012 | 397 17 | 40 20 |
| Max | 84.8 | - | 50.7 | - | 50.8 | 100 | 42 | 3.2 | 17.5 | - | - | 0.00 | 32.79 | 0.214 | 721 | - | |
| Avg | - | - | - | - | 49.0 | - | - | 2.2 | - | - | - | - | - | - | - | - | |
| Min | 76.4 | - | 41.2 | - | 47.0 | 90 | 22 | 1.0 | 10.4 | - | - | 0.00 | 23.62 | 0.133 | 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 | 5/13/26 | 73.4 2.1 | 1553 | 49.4 4.4 | 0546 | 48.1 0.8 | 90 9 | 37 13 | 1.7 | 12.5 2.1 | 1453 | SSE | 151 | 0.00 | 34.19 | 0.325 0.001 | 1,359 2 | 10 10 |
| Mount George (Napa East) | 5/13/26 | 75.4 0.6 | 1520 | 45.3 6.9 | 0628 | 49.3 6.9 | 97 3 | 38 20 | 1.7 | 11.5 0.1 | 1232 | SW | 220 | 0.00 | 17.04 | 0.191 0.041 | 667 141 | 40 20 |
| Napa-East (Palmaz 300') | 5/13/26 | 76.9 2.5 | 1524 | 46.7 4.8 | 0625 | 50.1 2.7 | 100 0 | 36 17 | 2.1 | 12.9 0.8 | 1354 | WSW | 237 | 0.00 | 23.29 | 0.170 0.025 | 554 46 | 20 20 |
| Napa-East (Palmaz 1200') | 5/13/26 | 70.9 2.8 | 1600 | 44.5 3.4 | 0455 | 46.7 1.7 | 100 0 | 13 4 | 2.6 | 16.4 2.6 | 1448 | NW | 320 | - | - | 0.184 0.031 | 680 88 | 0 0 |
| Napa-East (Palmaz 1400') | 5/13/26 | 71.6 2.9 | 1538 | 48.6 0.6 | 0616 | 49.7 2.0 | 100 0 | 46 15 | 3.3 | 14.0 1.0 | 0714 | W | 278 | 0.00 | 30.80 | 0.185 0.030 | 670 55 | 0 10 |
| Wooden Valley | 5/13/26 | 74.4 1.7 | 1620 | 51.3 0.7 | 0212 | 48.9 1.6 | 89 5 | 39 7 | 4.2 | 16.2 1.6 | 1354 | SSW | 209 | 0.00 | 29.11 | 0.202 0.016 | 697 20 | 80 20 |
| Napa-West Upper (Truchard) | 5/13/26 | 76.3 1.7 | 1514 | 47.3 2.5 | 0559 | 34.2 31.0 | 100 0 | 0 0 | 3.4 | 17.6 2.4 | 1410 | SSW | 196 | 0.00 | 24.41 | 0.209 0.034 | 682 139 | 40 20 |
| Napa-West Lower (Truchard) | 5/13/26 | 78.4 1.9 | 1525 | 41.6 8.8 | 0609 | 48.4 3.6 | 100 0 | 36 9 | - | - | - | - | - | - | - | - | 90 20 |
| Napa-South (Toyon Farms) | 5/13/26 | 75.2 2.4 | 1456 | 47.6 3.6 | 0608 | 52.5 1.6 | 100 0 | 46 13 | 2.9 | 15.3 1.5 | 1259 | SW | 228 | 0.00 | 18.34 | 0.106 0.021 | 325 16 | 30 20 |
| Toyon Remote 1 | 5/13/26 | 79.7 4.0 | 1456 | 39.7 11.5 | 0558 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 5/13/26 | 75.9 3.2 | 1438 | 44.0 7.7 | 0602 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 5/13/26 | 79.9 3.2 | 1509 | 43.7 8.2 | 0611 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 5/13/26 | 75.6 1.2 | 1439 | 44.9 6.1 | 0606 | 49.4 2.2 | 97 0 | 38 9 | 2.5 | 15.9 2.3 | 1620 | WSW | 256 | 0.00 | 23.58 | 0.200 0.044 | 683 128 | 30 20 |
| Carneros (Saintsbury) | 5/13/26 | 75.3 2.3 | 1436 | 45.5 2.2 | 0557 | 49.5 1.6 | 100 0 | 36 15 | 4.8 | 18.3 1.2 | 1619 | SW | 236 | 0.00 | 8.68 | - | - | 30 20 |
| Suscol Lower (Ranch 35) | 5/13/26 | 76.1 5.4 | 1456 | 46.0 4.7 | 0608 | 49.7 1.9 | - | - | 4.8 | 16.1 1.5 | 1519 | SW | 219 | 0.00 | 22.84 | 0.195 0.059 | 621 147 | 30 20 |
| Suscol Mtn (Ranch 93) | 5/13/26 | 77.4 5.7 | 1425 | 48.2 0.2 | 0626 | 49.8 2.3 | 100 0 | 40 19 | 6.2 | 19.7 1.6 | 1613 | WNW | 298 | 0.00 | 18.60 | - | - | 30 20 |
| Suscol Upper (Ranch 92) | 5/13/26 | 73.3 4.2 | 1431 | 49.0 0.4 | 0607 | 38.3 13.3 | 100 0 | 3 0 | 4.0 | 18.2 2.1 | 1350 | SSE | 167 | 0.00 | 22.35 | - | - | 0 10 |
| Stanly (Ranch 45) | 5/13/26 | 77.1 6.0 | 1454 | 47.6 1.7 | 0551 | 49.5 1.6 | 94 1 | 34 17 | 5.6 | 18.7 0.4 | 1103 | W | 260 | 0.00 | 22.49 | 0.231 0.069 | 750 162 | 30 20 |
| Carneros Upper (Ranch 81) | 5/13/26 | 72.7 0.4 | 1412 | 49.4 0.3 | 0600 | 46.4 31.2 | - | - | 8.5 | 24.2 0.4 | 1543 | WSW | 250 | - | - | - | - | 0 10 |
| Carneros (Mitsuko) | 5/13/26 | 75.6 2.8 | 1439 | 43.8 6.8 | 0548 | - | - | - | - | - | - | - | - | - | - | - | 30 20 |
| Carneros Lower (Ranch 81) | 5/13/26 | 77.6 1.7 | 1359 | 48.7 2.3 | 0558 | 49.7 2.4 | 100 0 | 0 42 | 0.7 | 11.2 1.0 | 1347 | S | 177 | 0.00 | 19.42 | 0.176 0.035 | 609 118 | 20 20 |
| Carneros (Milton Rd) | 5/13/26 | 76.0 6.1 | 1510 | 46.3 5.2 | 0605 | 49.7 2.3 | 94 0 | 37 17 | - | - | - | - | 0.00 | 18.07 | - | - | 30 20 |
| Max | 79.9 | - | 51.3 | - | 52.5 | 100 | 46 | 8.5 | 24.2 | - | - | 0.00 | 34.19 | 0.325 | 1,359 | - | |
| Avg | - | - | - | - | 47.8 | - | - | 3.7 | - | - | - | - | - | - | - | - | |
| Min | 70.9 | - | 39.7 | - | 34.2 | 89 | 0 | 0.7 | 11.2 | - | - | 0.00 | 8.68 | 0.106 | 325 | - |