| 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 | 5/25/26 | 61.8 11.2 | 1344 | 42.0 1.7 | 0453 | - | - | - | - | - | - | - | 0.00 | 50.09 | - | - | 70 10 |
| Pope Valley (Weeks Lake) | 5/25/26 | 70.5 9.9 | 1250 | 42.4 1.1 | 0503 | 46.3 2.2 | 100 0 | 42 13 | 3.5 1.3 | 18.4 5.9 | 1842 | SW | 216 | 0.00 | 26.24 | 0.172 0.014 | 608 9 | 90 10 |
| Dollarhide Base | 5/25/26 | 70.8 7.6 | 1447 | 50.4 1.3 | 0612 | 49.9 2.8 | 95 2 | 52 9 | 7.5 2.8 | 22.8 3.9 | 1507 | SSW | 212 | 0.00 | 23.14 | 0.191 0.022 | 700 10 | 90 10 |
| Dollarhide 1AS Remote | 5/25/26 | 70.5 8.2 | 1332 | 50.5 5.0 | 0621 | 49.4 2.5 | 92 2 | 51 10 | 6.4 1.7 | 21.9 2.6 | 1904 | SW | 233 | - | - | - | - | 90 10 |
| Dollarhide 16A Remote | 5/25/26 | 69.5 6.2 | 1418 | 49.6 3.4 | 0448 | 49.6 2.7 | 96 2 | 53 8 | - | - | - | - | - | - | - | - | 90 10 |
| Dollarhide 18A Remote | 5/25/26 | 68.7 7.4 | 1320 | 50.4 4.3 | 0613 | 48.8 2.7 | 92 4 | 53 10 | - | - | - | - | - | - | - | - | 90 10 |
| Hardin Rd (Eakle) | 5/25/26 | 70.6 6.9 | 1513 | 51.1 3.8 | 0615 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| Angwin | 5/25/26 | 58.6 9.4 | 1327 | 44.6 1.3 | 0621 | 45.8 1.4 | 100 0 | 61 25 | 4.2 1.6 | 19.8 7.8 | 1729 | SSE | 149 | 0.00 | 45.12 | 0.015 0.009 | 0 0 | 70 10 |
| Lower Angwin (Pioneer) | 5/25/26 | 61.1 6.5 | 1320 | 45.6 0.4 | 0606 | - | - | - | 4.5 1.0 | 17.7 2.3 | 1937 | SW | 229 | - | - | - | - | 70 10 |
| Las Posadas (Cal Fire) | 5/25/26 | 63.8 5.1 | 1449 | 46.9 0.5 | 0644 | 46.8 2.6 | 98 1 | 58 7 | 10.8 1.0 | 27.8 1.7 | 2027 | SW | 228 | 0.00 | 34.50 | 0.125 0.039 | 492 118 | - |
| Deer Park | 5/25/26 | 65.4 7.8 | 1219 | 49.0 0.9 | 0617 | 47.6 2.7 | 96 1 | 53 7 | 5.9 0.9 | 19.1 1.5 | 1753 | SW | 223 | 0.00 | 28.72 | 0.112 0.026 | 352 96 | 70 10 |
| Lower Chiles Valley (Brown) | 5/25/26 | 65.9 6.9 | 1338 | 49.6 0.1 | 0542 | 47.3 3.1 | 93 2 | 53 8 | 5.2 0.7 | 20.9 2.2 | 1442 | WNW | 301 | 0.00 | 25.89 | 0.156 0.015 | 585 21 | 70 10 |
| Moss Creek Vineyard/Reservior | 5/25/26 | 71.2 8.8 | 1403 | 50.0 0.9 | 0535 | 46.8 3.4 | 94 1 | 44 5 | - | - | - | - | 0.00 | 27.05 | - | - | 60 10 |
| Max | 71.2 | - | 51.1 | - | 49.9 | 100 | 61 | 10.8 | 27.8 | - | - | 0.00 | 50.09 | 0.191 | 700 | - | |
| Avg | - | - | - | - | 47.8 | - | - | 6.0 | - | - | - | - | - | - | - | - | |
| Min | 58.6 | - | 42.0 | - | 45.8 | 92 | 42 | 3.5 | 17.7 | - | - | 0.00 | 23.14 | 0.015 | 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 | 5/25/26 | 55.0 18.5 | 0908 | 50.5 1.6 | 0548 | 48.1 3.9 | 96 1 | 81 29 | - | - | - | - | 0.00 | 32.79 | - | - | 30 10 |
| Diamond Mtn (Schramsberg) | 5/25/26 | 64.7 8.4 | 1229 | 48.8 0.4 | 0524 | 47.4 3.3 | 100 0 | 55 11 | - | - | - | - | 0.00 | 31.20 | - | - | 70 10 |
| Diamond Mtn (McEachran) | 5/25/26 | 62.3 8.6 | 1239 | 49.8 0.9 | 0615 | 47.5 2.7 | 94 1 | 59 10 | - | - | - | - | - | - | - | - | 60 10 |
| St. Helena-North | 5/25/26 | 68.9 7.8 | 1159 | 51.9 0.9 | 0623 | 46.0 2.8 | 82 4 | 45 7 | 3.0 | 17.6 2.9 | 1708 | WNW | 290 | 0.00 | 31.03 | 0.137 0.031 | 458 93 | 60 10 |
| St. Helena (NVV Office) | 5/25/26 | 68.3 7.8 | 1228 | 52.3 1.2 | 0615 | - | - | - | 2.6 | 13.5 1.8 | 1716 | W | 269 | 0.00 | 28.47 | - | - | 80 10 |
| Tiara Fria (East St. Helena) | 5/25/26 | 67.9 7.0 | 1300 | 52.7 0.8 | 0631 | 47.6 2.6 | 83 1 | 50 9 | 4.8 | 18.3 2.0 | 1542 | W | 272 | 0.00 | 26.44 | - | - | 80 10 |
| Rutherford Hill Estate | 5/25/26 | 70.8 7.1 | 1450 | 51.6 0.3 | 0632 | 48.1 3.0 | 88 2 | 46 6 | 3.2 | 20.6 9.0 | 1857 | SSW | 199 | 0.00 | 25.00 | 0.146 0.021 | 488 63 | 90 10 |
| Rutherford-North (Mee Ln) | 5/25/26 | 68.3 9.1 | 1357 | 53.1 0.5 | 0558 | 48.0 2.6 | 83 1 | 50 10 | 4.0 | 18.6 2.4 | 1855 | WNW | 290 | 0.00 | 24.52 | 0.156 0.013 | 533 11 | 60 10 |
| Rutherford (STS) | 5/25/26 | 68.5 7.9 | 1201 | 53.0 0.6 | 0302 | 50.1 2.8 | 88 4 | 56 10 | 4.4 | 21.1 4.6 | 1709 | SW | 221 | 0.00 | 25.82 | 0.169 0.012 | 617 0 | 90 10 |
| Oakville-NE (Ranch 88) | 5/25/26 | 68.9 8.7 | 1429 | 53.1 0.9 | 0455 | 46.5 2.9 | 78 4 | 45 9 | 3.8 | 17.1 4.8 | 1457 | WSW | 245 | 0.00 | 24.92 | 0.160 0.000 | 536 14 | 100 0 |
| OV561-East | 5/25/26 | 67.4 10.1 | 1347 | 52.8 1.8 | 0531 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| Oakville | 5/25/26 | 65.7 10.0 | 1224 | 52.5 1.8 | 0431 | 47.3 2.9 | 83 0 | 53 10 | 6.1 | 21.9 7.1 | 1510 | SW | 223 | 0.00 | 25.51 | 0.174 0.010 | 628 17 | 60 10 |
| OV518-West | 5/25/26 | 64.7 9.1 | 1219 | 52.7 2.0 | 0622 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| To Kalon Remote (TKKE) | 5/25/26 | 67.4 9.4 | 1424 | 52.9 0.2 | 0451 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| To Kalon | 5/25/26 | 65.2 9.3 | 1341 | 51.9 2.1 | 0554 | 48.1 2.9 | 87 1 | 56 10 | 4.5 | 19.9 4.5 | 1334 | SW | 224 | 0.00 | 27.70 | 0.156 0.011 | 554 14 | 60 10 |
| To Kalon Remote (TKN5) | 5/25/26 | 66.8 9.1 | 1302 | 52.5 2.1 | 0552 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| Yountville (Ranch 67) | 5/25/26 | 66.9 8.6 | 1311 | 52.2 1.2 | 0601 | 46.1 3.0 | 81 3 | 48 9 | 5.3 | 18.7 4.8 | 1558 | NW | 312 | 0.00 | 23.62 | 0.182 0.001 | 679 39 | 60 10 |
| Stags Leap Dist (Silverado Vineyards) | 5/25/26 | 69.0 8.2 | 1441 | 52.2 0.3 | 0617 | 47.0 2.7 | 82 6 | 46 10 | 1.4 | 11.7 0.6 | 1420 | WNW | 288 | 0.00 | 27.62 | 0.170 0.005 | 624 57 | 40 10 |
| Borreo (Soda Canyon) | 5/25/26 | 67.3 8.3 | 1407 | 50.1 1.0 | 0539 | 46.3 2.9 | 88 7 | 48 9 | 2.6 | 13.9 2.4 | 2024 | SW | 235 | 0.00 | 27.52 | 0.157 0.017 | 582 25 | 40 10 |
| Wappo Hill Floor | 5/25/26 | 69.7 8.9 | 1237 | 52.6 0.1 | 0349 | 47.6 2.8 | 84 4 | 48 11 | 4.2 | 17.7 5.6 | 1440 | NW | 304 | 0.00 | 26.75 | 0.171 0.008 | 598 17 | 90 10 |
| Stags Leap Dist (Chimney Rock) | 5/25/26 | 70.3 7.7 | 1345 | 53.3 0.6 | 0617 | 49.5 2.9 | 86 7 | 51 10 | 4.0 | 14.9 0.9 | 2043 | W | 279 | 0.00 | 26.14 | 0.154 0.004 | 530 13 | 30 10 |
| Yountville-South (Ranch 87) | 5/25/26 | 69.1 8.5 | 1253 | 52.8 0.9 | 0630 | 48.2 3.0 | 85 4 | 48 12 | 2.8 | 15.3 4.9 | 1252 | WSW | 258 | 0.00 | 27.39 | 0.156 0.018 | 540 51 | 90 10 |
| Yountville-SE (Ranch 85) | 5/25/26 | 70.0 7.1 | 1415 | 52.7 0.0 | 0634 | 48.3 2.8 | 86 5 | 47 8 | 3.2 | 15.3 3.8 | 1645 | W | 281 | 0.00 | 25.69 | - | 0 0 | 60 10 |
| Oak Knoll-East (Ranch 53) | 5/25/26 | 68.6 10.2 | 1544 | 52.7 0.2 | 0545 | 47.1 3.0 | 81 9 | 46 7 | 3.3 | 16.9 0.4 | 1142 | SE | 138 | 0.00 | 24.30 | 0.165 0.015 | 560 44 | 90 10 |
| Napa-NW (Ranch 54) | 5/25/26 | 69.4 10.3 | 1529 | 53.0 0.4 | 0540 | 47.5 3.0 | 82 8 | 44 7 | 2.7 | 14.6 2.4 | 1239 | W | 265 | 0.00 | 26.77 | - | 0 0 | 90 10 |
| Napa-North (Ranch 29) | 5/25/26 | 67.2 8.1 | 1341 | 52.1 1.3 | 0535 | 47.7 2.8 | 84 4 | 49 4 | 4.4 | 17.3 2.5 | 1517 | SW | 219 | 0.00 | 25.18 | 0.127 0.011 | 384 42 | 30 10 |
| Max | 70.8 | - | 53.3 | - | 50.1 | 100 | 81 | 6.1 | 21.9 | - | - | 0.00 | 32.79 | 0.182 | 679 | - | |
| Avg | - | - | - | - | 47.6 | - | - | 3.7 | - | - | - | - | - | - | - | - | |
| Min | 55.0 | - | 48.8 | - | 46.0 | 78 | 44 | 1.4 | 11.7 | - | - | 0.00 | 23.62 | 0.127 | 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 | 5/25/26 | 61.4 9.2 | 1252 | 46.5 0.7 | 0551 | 46.7 2.7 | 100 0 | 60 7 | 2.0 | 13.1 4.7 | 1914 | ESE | 120 | 0.00 | 34.19 | 0.122 0.019 | 480 37 | 60 10 |
| Mount George (Napa East) | 5/25/26 | 65.3 6.3 | 1359 | 52.2 0.4 | 0540 | 47.8 2.5 | 86 3 | 52 3 | 3.8 | 17.7 4.6 | 1811 | SSW | 210 | 0.00 | 17.04 | 0.151 0.011 | 541 39 | 30 10 |
| Napa-East (Palmaz 300') | 5/25/26 | 68.7 7.2 | 1456 | 51.0 1.5 | 0551 | 47.7 2.8 | 86 3 | 47 2 | 4.0 | 17.5 3.4 | 1434 | SW | 223 | 0.00 | 23.29 | 0.145 0.014 | 468 57 | 30 10 |
| Napa-East (Palmaz 1200') | 5/20/26 | 83.1 2.3 | 1549 | 49.6 2.8 | 0543 | 44.2 13.7 | 74 19 | 19 10 | 2.5 | 11.6 2.3 | 1413 | NNW | 333 | - | - | 0.212 0.024 | 676 30 | 100 10 |
| Napa-East (Palmaz 1400') | 5/25/26 | 61.2 7.4 | 1436 | 45.5 2.7 | 0548 | 47.2 3.0 | 100 0 | 61 4 | 4.5 | 22.7 7.2 | 1622 | SSE | 165 | 0.00 | 30.80 | 0.124 0.022 | 498 58 | 60 10 |
| Wooden Valley | 5/25/26 | 64.5 5.9 | 1459 | 48.5 1.5 | 0541 | 46.6 2.9 | 91 1 | 53 1 | 5.4 | 22.4 3.6 | 1323 | SW | 221 | 0.00 | 29.11 | 0.159 0.014 | 615 33 | 70 10 |
| Napa-West Upper (Truchard) | 5/25/26 | 66.6 7.2 | 1241 | 50.4 1.0 | 0516 | 48.8 2.7 | 100 0 | 52 52 | 7.4 | 22.3 3.1 | 1355 | SW | 218 | 0.00 | 24.41 | 0.146 0.027 | 493 82 | 30 10 |
| Napa-West Lower (Truchard) | 5/25/26 | 69.4 6.0 | 1506 | 51.1 0.3 | 0522 | 48.1 2.5 | 88 3 | 46 2 | - | - | - | - | - | - | - | - | 50 10 |
| Napa-South (Toyon Farms) | 5/25/26 | 67.0 6.2 | 1415 | 51.3 1.0 | 0544 | 50.0 2.4 | 92 3 | 57 3 | 5.3 | 17.0 1.0 | 1400 | SW | 221 | 0.00 | 18.34 | 0.077 0.021 | 251 79 | 50 10 |
| Toyon Remote 1 | 5/25/26 | 71.5 6.7 | 1356 | 51.5 1.8 | 0550 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 5/25/26 | 67.2 6.0 | 1417 | 52.2 0.7 | 0600 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 5/25/26 | 71.1 6.9 | 1519 | 52.0 1.2 | 0559 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 5/25/26 | 66.2 7.2 | 1221 | 51.2 2.0 | 0559 | 47.6 2.4 | 86 0 | 49 3 | 3.8 | 19.4 2.3 | 1822 | SW | 226 | 0.00 | 23.58 | 0.130 0.036 | 445 130 | 50 10 |
| Carneros (Saintsbury) | 5/25/26 | 66.4 6.7 | 1508 | 50.5 1.1 | 0606 | 48.0 2.1 | 88 1 | 49 3 | 8.1 | 22.2 0.6 | 1429 | WSW | 250 | 0.00 | 8.68 | - | - | 60 10 |
| Suscol Lower (Ranch 35) | 5/25/26 | 67.4 5.8 | 1538 | 50.9 0.7 | 0612 | 47.6 2.4 | - | - | 7.2 | 20.0 0.2 | 1617 | W | 273 | 0.00 | 22.84 | 0.120 0.033 | 345 153 | 60 10 |
| Suscol Mtn (Ranch 93) | 5/25/26 | 65.0 6.7 | 1518 | 47.0 2.1 | 0612 | 47.1 3.3 | 98 0 | 56 3 | 16.7 | 34.4 9.6 | 1839 | NNW | 334 | 0.00 | 18.60 | - | - | 30 10 |
| Suscol Upper (Ranch 92) | 5/25/26 | 62.7 4.7 | 1553 | 47.8 2.2 | 0627 | 31.4 4.8 | 100 0 | 3 0 | 12.0 | 26.6 5.2 | 1816 | WSW | 247 | 0.00 | 22.35 | - | - | 60 10 |
| Stanly (Ranch 45) | 5/25/26 | 68.8 7.4 | 1309 | 51.2 1.8 | 0624 | 47.8 2.4 | 86 0 | 46 4 | 8.6 | 20.6 2.2 | 1701 | W | 275 | 0.00 | 22.49 | 0.138 0.046 | 398 195 | 50 10 |
| Carneros Upper (Ranch 81) | 5/25/26 | 63.8 7.6 | 1511 | 49.8 2.6 | 0557 | 47.7 2.1 | - | - | 12.9 | 26.5 0.1 | 1831 | WSW | 254 | - | - | - | - | 60 10 |
| Carneros (Mitsuko) | 5/25/26 | 67.3 5.8 | 1519 | 51.2 1.4 | 0602 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| Carneros Lower (Ranch 81) | 5/25/26 | 69.4 7.2 | 1528 | 51.1 1.5 | 0615 | 49.1 2.1 | 89 2 | 47 5 | 1.0 | 12.5 0.7 | 1427 | NW | 313 | 0.00 | 19.42 | 0.097 0.043 | 330 144 | 60 10 |
| Carneros (Milton Rd) | 5/25/26 | 66.8 6.9 | 1358 | 51.6 2.1 | 0619 | 48.2 2.3 | 88 1 | 49 4 | - | - | - | - | 0.00 | 18.07 | - | - | 60 10 |
| Max | 71.5 | - | 52.2 | - | 50.0 | 100 | 61 | 16.7 | 34.4 | - | - | 0.00 | 34.19 | 0.159 | 615 | - | |
| Avg | - | - | - | - | 46.9 | - | - | 6.9 | - | - | - | - | - | - | - | - | |
| Min | 61.2 | - | 45.5 | - | 31.4 | 86 | 3 | 1.0 | 12.5 | - | - | 0.00 | 8.68 | 0.077 | 251 | - |