| 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 | 4/27/26 | 62.2 6.1 | 1354 | 40.2 4.2 | 0023 | - | - | - | - | - | - | - | 0.01 | 49.63 | - | - | 0 0 |
| Pope Valley (Weeks Lake) | 4/27/26 | 67.3 3.5 | 1636 | 40.4 4.2 | 0057 | 45.6 3.1 | 95 0 | 41 1 | 1.4 | 11.6 6.4 | 1738 | WSW | 245 | 0.00 | 25.63 | 0.104 0.017 | 369 58 | 0 0 |
| Dollarhide Base | 4/27/26 | 69.3 4.8 | 1619 | 47.6 0.1 | 0056 | 47.4 2.8 | 97 11 | 46 2 | 3.2 | 16.6 3.7 | 1856 | WSW | 238 | 0.01 | 22.64 | 0.139 0.015 | 497 75 | 10 10 |
| Dollarhide 1AS Remote | 4/27/26 | 69.8 5.3 | 1627 | 44.8 2.2 | 0058 | 47.1 2.5 | 94 4 | 43 4 | 2.5 | 15.0 5.2 | 1825 | SW | 214 | - | - | - | - | 0 0 |
| Dollarhide 17B Remote | 4/27/26 | 69.7 4.6 | 1547 | 44.6 2.2 | 0058 | 48.1 2.7 | 97 3 | 45 2 | - | - | - | - | - | - | - | - | 0 0 |
| Dollarhide 18A Remote | 4/27/26 | 69.4 5.8 | 1629 | 41.8 5.1 | 0059 | 47.1 2.6 | 96 6 | 45 4 | - | - | - | - | - | - | - | - | 0 0 |
| Angwin | 4/27/26 | 58.4 5.6 | 1607 | 42.9 1.1 | 0243 | 42.4 2.5 | 100 5 | 53 3 | 2.6 | 11.3 2.6 | 1721 | SSE | 158 | 0.02 | 44.48 | 0.015 0.000 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 4/27/26 | 61.6 6.5 | 1642 | 40.8 0.6 | 0041 | - | - | - | 1.8 | 13.5 1.5 | 1829 | W | 263 | - | - | - | - | 0 0 |
| Deer Park | 4/27/26 | 66.5 4.9 | 1457 | 47.2 0.1 | 0507 | 44.9 1.6 | 93 1 | 46 2 | 2.2 | 15.3 2.3 | 1809 | SSW | 196 | 0.01 | 28.19 | 0.082 0.006 | 248 27 | 0 0 |
| Lower Chiles Valley (Brown) | 4/27/26 | 66.0 6.2 | 1518 | 41.1 2.0 | 0057 | 45.1 2.9 | 94 1 | 45 2 | 1.7 | 13.3 1.1 | 1723 | WSW | 255 | 0.00 | 25.25 | 0.089 0.003 | 320 9 | 0 0 |
| Moss Creek Vineyard/Reservior | 4/27/26 | 66.1 3.4 | 1447 | 45.3 2.4 | 0041 | 45.7 3.7 | 94 1 | 44 1 | - | - | - | - | 0.00 | 26.50 | - | - | 0 0 |
| Max | 69.8 | - | 47.6 | - | 48.1 | 100 | 53 | 3.2 | 16.6 | - | - | 0.02 | 49.63 | 0.139 | 497 | - | |
| Avg | - | - | - | - | 45.9 | - | - | 2.2 | - | - | - | - | - | - | - | - | |
| Min | 58.4 | - | 40.2 | - | 42.4 | 93 | 41 | 1.4 | 11.3 | - | - | 0.00 | 22.64 | 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 | 4/27/26 | 73.1 8.6 | 1345 | 45.5 1.7 | 0503 | 47.1 1.2 | 98 2 | 41 8 | - | - | - | - | 0.00 | 32.32 | - | - | 0 10 |
| Diamond Mtn (Schramsberg) | 4/27/26 | 67.4 7.3 | 1646 | 46.0 0.5 | 0519 | 44.3 1.2 | 95 1 | 45 2 | - | - | - | - | 0.00 | 30.72 | - | - | 0 0 |
| Diamond Mtn (McEachran) | 4/27/26 | 66.2 6.6 | 1713 | 46.8 0.6 | 0515 | 44.9 1.5 | 95 3 | 44 4 | - | - | - | - | - | - | - | - | 0 0 |
| St. Helena-North | 4/27/26 | 68.2 4.2 | 1507 | 46.8 0.3 | 0058 | 43.8 1.4 | 88 2 | 36 2 | 1.8 | 14.3 0.9 | 1915 | NW | 326 | 0.00 | 30.46 | 0.114 0.031 | 380 112 | 0 0 |
| St. Helena (NVV Office) | 4/27/26 | 69.9 4.7 | 1407 | 47.9 0.0 | 0059 | - | - | - | 1.0 | 9.6 2.2 | 1822 | WNW | 294 | 0.00 | 27.95 | - | - | 40 10 |
| Tiara Fria (East St. Helena) | 4/27/26 | 68.1 4.3 | 1632 | 47.6 0.4 | 0059 | 45.7 1.5 | 91 1 | 44 2 | 2.1 | 14.2 2.3 | 1809 | WSW | 246 | 0.00 | 25.95 | - | - | 0 0 |
| Rutherford Hill Estate | 4/27/26 | 69.0 4.8 | 1617 | 48.0 0.5 | 0402 | 45.7 1.5 | 91 1 | 44 1 | 1.4 | 11.0 6.4 | 1736 | W | 270 | 0.00 | 24.50 | 0.101 0.004 | 358 14 | 0 10 |
| Rutherford-North (Mee Ln) | 4/27/26 | 70.5 6.4 | 1640 | 45.1 2.3 | 0059 | 45.8 2.0 | 95 0 | 41 3 | 2.0 | 13.8 4.0 | 1254 | E | 82 | 0.00 | 23.98 | 0.118 0.021 | 402 92 | 10 10 |
| Rutherford (STS) | 4/27/26 | 69.2 5.4 | 1308 | 45.9 2.2 | 0058 | 47.4 1.9 | 91 1 | 48 3 | 2.3 | 16.4 1.5 | 1901 | WSW | 254 | 0.00 | 25.26 | 0.129 0.027 | 453 94 | 40 10 |
| Oakville-NE (Ranch 88) | 4/27/26 | 69.9 5.9 | 1624 | 45.9 2.8 | 0059 | 45.3 2.1 | 92 3 | 37 4 | 1.8 | 20.4 1.2 | 1619 | S | 184 | 0.00 | 24.39 | 0.124 0.021 | 432 92 | 0 0 |
| OV561-East | 4/27/26 | 70.1 6.1 | 1537 | 46.7 1.7 | 0050 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Oakville | 4/27/26 | 68.4 5.5 | 1537 | 46.6 2.8 | 0101 | 45.7 2.2 | 94 2 | 40 4 | 2.8 | 17.3 0.4 | 1823 | WSW | 258 | 0.00 | 24.96 | 0.130 0.018 | 454 84 | 0 0 |
| OV518-West | 4/27/26 | 67.1 4.7 | 1340 | 47.6 2.3 | 0059 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| To Kalon Remote (TKKE) | 4/27/26 | 69.9 6.1 | 1642 | 44.6 0.9 | 0101 | - | - | - | - | - | - | - | - | - | - | - | 40 10 |
| To Kalon | 4/27/26 | 68.6 5.4 | 1647 | 45.7 0.7 | 0101 | 46.1 1.7 | 94 1 | 45 1 | 2.3 | 15.0 1.0 | 1747 | WNW | 286 | 0.00 | 27.15 | 0.116 0.031 | 392 132 | 0 0 |
| To Kalon Remote (TKN5) | 4/27/26 | 69.1 5.7 | 1636 | 45.8 1.3 | 0101 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Yountville (Ranch 67) | 4/27/26 | 67.1 4.5 | 1541 | 45.5 1.8 | 0059 | 45.1 2.5 | 94 2 | 41 0 | 2.4 | 14.8 0.3 | 1549 | SSE | 167 | 0.00 | 23.06 | 0.119 0.006 | 442 22 | 0 0 |
| Stags Leap Dist (Silverado Vineyards) | 4/27/26 | 66.0 3.6 | 1509 | 46.1 2.8 | 0059 | 45.4 2.0 | 93 2 | 42 1 | 1.8 | 14.7 2.1 | 1616 | S | 185 | 0.00 | 27.09 | 0.107 0.015 | 366 36 | 0 0 |
| Borreo (Soda Canyon) | 4/27/26 | 63.7 5.3 | 1610 | 43.5 0.8 | 0059 | 45.4 3.1 | 96 0 | 47 5 | 1.3 | 11.1 0.0 | 1659 | WSW | 249 | 0.00 | 27.02 | 0.095 0.011 | 353 41 | 0 0 |
| Wappo Hill Floor | 4/27/26 | 68.1 4.9 | 1443 | 46.4 2.4 | 0101 | 46.7 2.7 | 100 0 | 43 5 | 2.1 | 14.2 2.2 | 1553 | SW | 224 | 0.00 | 26.26 | 0.112 0.019 | 382 79 | 40 10 |
| Stags Leap Dist (Chimney Rock) | 4/27/26 | 67.6 5.3 | 1513 | 48.0 3.0 | 0045 | 48.1 2.5 | 98 0 | 47 3 | 2.3 | 14.0 0.4 | 1547 | S | 188 | 0.00 | 25.63 | 0.102 0.019 | 353 81 | 0 0 |
| Yountville-South (Ranch 87) | 4/27/26 | 66.5 4.8 | 1521 | 46.7 1.1 | 0050 | 47.0 2.3 | 100 0 | 44 4 | 1.8 | 13.8 0.5 | 1627 | SSW | 202 | 0.00 | 26.90 | 0.106 0.016 | 368 74 | 30 10 |
| Yountville-SE (Ranch 85) | 4/27/26 | 67.2 3.6 | 1711 | 47.0 1.0 | 0059 | 47.2 2.2 | 96 0 | 44 0 | 1.3 | 10.4 0.7 | 1627 | SSW | 208 | 0.00 | 25.19 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 4/27/26 | 68.2 5.9 | 1443 | 47.4 1.9 | 0059 | 46.2 2.4 | 94 1 | 41 1 | 1.7 | 14.8 0.2 | 1455 | S | 176 | 0.00 | 23.77 | 0.111 0.015 | 394 74 | 10 10 |
| Napa-NW (Ranch 54) | 4/27/26 | 69.4 5.8 | 1253 | 46.6 0.7 | 0059 | 46.1 2.5 | 93 1 | 41 2 | 0.9 | 10.4 2.7 | 1703 | SW | 216 | 0.00 | 26.23 | - | 0 0 | 40 10 |
| Napa-North (Ranch 29) | 4/27/26 | 65.8 5.5 | 1628 | 48.7 0.7 | 0613 | 47.3 1.8 | 100 0 | 49 7 | 1.6 | 12.9 1.3 | 1632 | S | 175 | 0.00 | 24.67 | 0.073 0.008 | 228 59 | 0 0 |
| Max | 73.1 | - | 48.7 | - | 48.1 | 100 | 49 | 2.8 | 20.4 | - | - | 0.00 | 32.32 | 0.130 | 454 | - | |
| Avg | - | - | - | - | 46.0 | - | - | 1.8 | - | - | - | - | - | - | - | - | |
| Min | 63.7 | - | 43.5 | - | 43.8 | 88 | 36 | 0.9 | 9.6 | - | - | 0.00 | 23.06 | 0.073 | 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 | 4/27/26 | 60.6 4.3 | 1524 | 45.0 0.7 | 0629 | 42.9 1.5 | 92 1 | 52 4 | 1.5 | 10.9 1.2 | 1709 | SSE | 163 | 0.00 | 33.62 | 0.148 0.018 | 780 70 | 0 0 |
| Mount George (Napa East) | 4/27/26 | 84.6 12.7 | 1220 | 48.8 5.7 | 0004 | 56.8 1.1 | 100 0 | 55 9 | 1.4 | 12.1 0.7 | 1754 | WSW | 249 | 0.00 | 16.54 | 0.119 0.022 | 386 83 | 20 20 |
| Napa-East (Palmaz 300') | 4/27/26 | 66.1 5.3 | 1612 | 47.4 0.5 | 0040 | 46.3 1.7 | 96 1 | 44 2 | 1.7 | 11.9 2.5 | 1659 | SSW | 203 | 0.00 | 22.81 | 0.097 0.014 | 338 78 | 0 0 |
| Napa-East (Palmaz 1200') | 4/27/26 | 61.3 5.4 | 1613 | 41.8 0.6 | 0101 | 43.2 2.0 | 100 0 | 3 4 | 1.5 | 15.0 1.2 | 1655 | NNW | 340 | - | - | 0.085 0.009 | 326 46 | 0 0 |
| Napa-East (Palmaz 1400') | 4/27/26 | 60.1 4.1 | 1520 | 43.8 0.3 | 0058 | 45.1 1.3 | 100 0 | 55 2 | 1.8 | 13.8 1.1 | 1808 | WSW | 241 | 0.00 | 30.26 | 0.082 0.009 | 316 37 | 0 0 |
| Wooden Valley | 4/27/26 | 63.7 4.8 | 1522 | 41.6 1.7 | 0055 | 44.5 2.5 | 93 3 | 46 3 | 2.0 | 15.1 0.5 | 1630 | SSW | 209 | 0.00 | 28.57 | 0.093 0.002 | 346 13 | 0 0 |
| Napa-West Upper (Truchard) | 4/27/26 | 67.9 6.4 | 1312 | 47.6 1.3 | 0056 | 46.3 1.5 | 100 0 | 40 3 | 3.0 | 17.0 4.3 | 1935 | SW | 233 | 0.00 | 23.93 | 0.118 0.016 | 395 83 | 0 0 |
| Napa-West Lower (Truchard) | 4/27/26 | 70.6 5.4 | 1314 | 42.9 1.8 | 0052 | 45.5 2.2 | 95 2 | 37 4 | - | - | - | - | - | - | - | - | 40 10 |
| Napa-South (Toyon Farms) | 4/27/26 | 66.9 4.0 | 1317 | 47.3 0.4 | 0057 | 48.5 1.6 | 97 1 | 53 5 | 2.3 | 13.5 2.7 | 1713 | SSW | 207 | 0.00 | 17.89 | 0.065 0.008 | 212 55 | 0 0 |
| Toyon Remote 1 | 4/27/26 | 69.3 1.7 | 1241 | 40.4 2.4 | 0042 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 4/27/26 | 67.9 2.3 | 1225 | 44.2 1.7 | 0059 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 4/27/26 | 68.4 1.5 | 1706 | 44.1 1.1 | 0052 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 4/27/26 | 68.3 4.8 | 1324 | 45.7 1.0 | 0047 | 45.9 1.8 | 94 1 | 41 3 | 1.9 | 14.4 1.3 | 1808 | NW | 310 | 0.00 | 23.12 | 0.112 0.007 | 402 44 | 10 10 |
| Carneros (Saintsbury) | 4/27/26 | 67.1 2.6 | 1403 | 46.8 0.8 | 0619 | 46.4 1.6 | 93 5 | 47 6 | 3.3 | 16.9 0.2 | 1912 | WSW | 256 | 0.00 | 8.68 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 4/27/26 | 68.6 4.9 | 1343 | 46.8 1.8 | 0054 | 46.1 1.9 | - | - | 3.3 | 14.6 7.6 | 1921 | WSW | 240 | 0.00 | 22.41 | 0.117 0.015 | 399 97 | 0 0 |
| Suscol Mtn (Ranch 93) | 4/27/26 | 67.2 5.7 | 1326 | 46.7 0.1 | 0601 | 45.0 1.5 | 94 1 | 49 3 | 4.5 | 21.6 3.8 | 1833 | NW | 318 | 0.00 | 18.04 | - | - | 0 0 |
| Suscol Upper (Ranch 92) | 4/27/26 | 64.6 5.9 | 1334 | 46.2 1.8 | 0056 | 45.3 1.5 | 93 3 | 44 0 | 1.8 | 17.8 4.2 | 1816 | SW | 221 | 0.00 | 21.98 | - | - | 0 0 |
| Stanly (Ranch 45) | 4/27/26 | 66.4 2.6 | 1727 | 47.4 0.6 | 0632 | 46.4 1.8 | 92 1 | 45 4 | 3.7 | 15.3 1.9 | 1621 | SSW | 198 | 0.00 | 22.49 | 0.144 0.025 | 497 119 | 0 0 |
| Carneros Upper (Ranch 81) | 4/27/26 | 66.7 4.8 | 1427 | 47.1 1.6 | 0554 | 45.3 1.2 | - | - | 6.2 | 20.0 3.4 | 1853 | W | 270 | - | - | - | - | 0 0 |
| Carneros (Mitsuko) | 4/27/26 | 68.2 2.8 | 1257 | 45.0 2.7 | 0059 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 4/27/26 | 67.2 0.5 | 1230 | 47.2 1.4 | 0627 | 46.8 1.5 | 91 2 | 43 1 | 0.9 | 14.1 1.8 | 1454 | SSE | 158 | 0.00 | 19.29 | 0.103 0.011 | 371 37 | 0 0 |
| Carneros (Milton Rd) | 4/27/26 | 68.3 4.2 | 1405 | 46.6 3.1 | 0057 | 46.7 1.9 | 91 2 | 46 6 | - | - | - | - | 0.00 | 18.07 | - | - | 0 0 |
| Max | 84.6 | - | 48.8 | - | 56.8 | 100 | 55 | 6.2 | 21.6 | - | - | 0.00 | 33.62 | 0.148 | 780 | - | |
| Avg | - | - | - | - | 46.3 | - | - | 2.6 | - | - | - | - | - | - | - | - | |
| Min | 60.1 | - | 40.4 | - | 42.9 | 91 | 3 | 0.9 | 10.9 | - | - | 0.00 | 8.68 | 0.065 | 212 | - |