| 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 | 3/27/26 | 82.0 8.8 | 1642 | 46.4 9.8 | 0503 | - | - | - | - | - | - | - | 0.00 | 42.33 | - | - | 100 10 |
| Pope Valley (Weeks Lake) | 3/27/26 | 84.1 6.0 | 1448 | 36.9 1.3 | 0520 | 38.3 2.7 | 95 4 | 13 0 | 1.4 | 11.6 5.0 | 1141 | NE | 39 | 0.00 | 21.60 | 0.144 0.017 | 440 39 | 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 | 3/27/26 | 84.6 5.3 | 1444 | 45.2 2.3 | 0706 | 42.0 2.0 | 90 8 | 19 0 | 2.4 | 13.5 5.7 | 1345 | E | 80 | 0.00 | 19.16 | 0.173 0.014 | 502 34 | 100 0 |
| Dollarhide 1AS Remote | 3/14/26 | 81.7 1.0 | 1452 | 37.8 5.1 | 0742 | 46.2 3.0 | 95 0 | 28 2 | 1.7 | 12.6 2.7 | 1558 | SW | 228 | - | - | - | - | 100 0 |
| Dollarhide 17B Remote | 3/27/26 | 86.3 4.6 | 1533 | 40.7 2.1 | 0635 | 42.1 1.2 | 90 10 | 18 1 | - | - | - | - | - | - | - | - | 100 0 |
| Dollarhide 18A Remote | 3/27/26 | 86.4 4.9 | 1636 | 34.6 0.1 | 0706 | 40.0 1.1 | 97 3 | 17 0 | - | - | - | - | - | - | - | - | 100 0 |
| Angwin | 3/27/26 | 78.2 7.3 | 1554 | 59.5 10.2 | 0753 | 24.6 0.2 | 36 27 | 14 2 | 6.7 | 19.7 1.8 | 0109 | NW | 326 | 0.00 | 38.60 | 0.114 0.016 | 0 0 | 70 10 |
| Lower Angwin (Pioneer) | 3/27/26 | 79.3 5.3 | 1701 | 48.0 7.3 | 0047 | - | - | - | 4.1 | 14.6 2.2 | 0206 | NNE | 20 | - | - | - | - | 100 20 |
| Deer Park | 3/27/26 | 87.1 7.6 | 1641 | 58.2 13.8 | 0559 | 30.0 1.9 | 42 39 | 12 2 | 2.6 | 14.0 10.1 | 1114 | NNW | 328 | 0.00 | 23.61 | 0.145 0.022 | 327 38 | 90 10 |
| Lower Chiles Valley (Brown) | 3/27/26 | 83.3 6.7 | 1620 | 42.8 6.2 | 0055 | 35.8 1.6 | 88 12 | 14 3 | 2.1 | 10.6 6.4 | 1309 | E | 87 | 0.00 | 20.67 | 0.164 0.000 | 477 34 | 100 0 |
| Moss Creek Vineyard/Reservior | 3/27/26 | 83.4 5.5 | 1608 | 46.7 4.1 | 0623 | 38.5 1.3 | 87 13 | 12 5 | - | - | - | - | 0.00 | 23.37 | - | - | 60 60 |
| Max | 87.1 | - | 59.5 | - | 42.1 | 97 | 19 | 6.7 | 19.7 | - | - | 0.00 | 42.33 | 0.173 | 502 | - | |
| Avg | - | - | - | - | 36.4 | - | - | 3.2 | - | - | - | - | - | - | - | - | |
| Min | 78.2 | - | 34.6 | - | 24.6 | 36 | 12 | 1.4 | 10.6 | - | - | 0.00 | 19.16 | 0.114 | 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 | 3/27/26 | 92.1 6.9 | 1446 | 46.4 8.0 | 0730 | 41.0 3.1 | 78 19 | 16 2 | - | - | - | - | 0.00 | 27.89 | - | - | 50 10 |
| 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) | 3/27/26 | 85.2 5.5 | 1538 | 60.8 16.8 | 0057 | 28.0 2.8 | 35 45 | 12 3 | - | - | - | - | 0.00 | 26.40 | - | - | 100 0 |
| Diamond Mtn (McEachran) | 3/27/26 | 87.3 4.7 | 1516 | 52.7 8.5 | 0734 | 34.0 0.3 | 63 17 | 12 3 | - | - | - | - | - | - | - | - | 90 10 |
| St. Helena-North | 3/27/26 | 88.9 3.8 | 1525 | 45.8 5.0 | 0716 | 33.4 0.6 | 71 16 | 9 4 | 1.9 | 11.0 3.5 | 1743 | NNW | 328 | 0.00 | 26.66 | 0.139 0.006 | 392 22 | 90 10 |
| St. Helena (NVV Office) | 3/27/26 | 89.3 6.0 | 1621 | 45.4 1.3 | 0722 | - | - | - | 1.1 | 10.5 2.6 | 1714 | SSE | 153 | 0.00 | 23.51 | - | - | 90 10 |
| Tiara Fria (East St. Helena) | 3/27/26 | 87.2 4.3 | 1607 | 43.8 2.7 | 0654 | 37.5 2.0 | 86 5 | 12 3 | 2.3 | 10.8 6.7 | 1635 | SE | 132 | 0.00 | 21.80 | - | - | 90 10 |
| Rutherford Hill Estate | 3/27/26 | 89.2 3.4 | 1510 | 53.6 7.6 | 0452 | 34.8 0.3 | 57 31 | 12 1 | 1.7 | 13.2 2.0 | 1348 | NW | 319 | 0.00 | 21.35 | 0.145 0.000 | 417 27 | 90 10 |
| Rutherford-North (Mee Ln) | 3/27/26 | 88.4 4.6 | 1547 | 40.4 0.5 | 0643 | 40.5 1.5 | 90 3 | 13 0 | 1.7 | 12.9 2.0 | 1608 | ESE | 121 | 0.00 | 20.49 | 0.145 0.002 | 418 31 | 90 10 |
| Rutherford (STS) | 3/27/26 | 90.3 7.8 | 1452 | 39.8 1.6 | 0714 | 42.4 1.3 | 92 1 | 16 3 | 1.8 | 11.0 3.2 | 1636 | SSE | 154 | 0.00 | 21.65 | 0.166 0.012 | 493 36 | 90 10 |
| Oakville-NE (Ranch 88) | 3/27/26 | 88.8 5.3 | 1527 | 39.2 0.6 | 0711 | 35.5 1.9 | 83 7 | 10 1 | 2.0 | 12.5 7.2 | 1547 | SSW | 195 | 0.00 | 21.19 | 0.168 0.012 | 468 31 | 0 0 |
| OV561-East | 3/27/26 | 87.2 0.4 | 1509 | 41.4 1.9 | 0556 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| Oakville | 3/27/26 | 87.0 4.3 | 1518 | 39.9 0.9 | 0701 | 39.0 1.6 | 93 4 | 11 1 | 2.4 | 13.2 3.2 | 1523 | ESE | 105 | 0.00 | 21.73 | 0.170 0.008 | 480 29 | 90 10 |
| OV518-West | 3/27/26 | 85.3 3.5 | 1506 | 41.0 1.0 | 0705 | - | - | - | - | - | - | - | - | - | - | - | 100 0 |
| To Kalon Remote (TKKE) | 3/27/26 | 88.7 3.0 | 1502 | 39.6 1.7 | 0710 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| To Kalon | 3/27/26 | 88.0 2.5 | 1508 | 40.4 0.1 | 0726 | 37.6 0.9 | 90 5 | 12 1 | 2.3 | 12.4 1.9 | 1607 | SE | 142 | 0.00 | 23.62 | 0.160 0.008 | 437 29 | 90 10 |
| To Kalon Remote (TKN5) | 3/27/26 | 88.8 5.5 | 1522 | 40.0 1.5 | 0645 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| Yountville (Ranch 67) | 3/27/26 | 85.9 4.3 | 1440 | 40.1 0.9 | 0710 | 40.2 2.0 | 94 2 | 12 3 | 2.3 | 13.7 3.2 | 1508 | S | 174 | 0.00 | 19.96 | 0.171 0.005 | 525 28 | 100 0 |
| Stags Leap Dist (Silverado Vineyards) | 3/27/26 | 85.2 4.1 | 1432 | 40.0 1.4 | 0654 | 40.4 3.1 | 95 1 | 13 6 | 1.3 | 12.4 4.6 | 1518 | SSE | 166 | 0.00 | 23.91 | 0.151 0.015 | 466 41 | 100 0 |
| Borreo (Soda Canyon) | 3/27/26 | 82.9 2.9 | 1433 | 44.8 5.3 | 0624 | 39.7 2.7 | 78 18 | 13 3 | 1.9 | 11.0 4.8 | 1520 | ESE | 120 | 0.00 | 23.83 | 0.160 0.009 | 508 26 | 80 20 |
| Wappo Hill Floor | 3/27/26 | 86.2 3.6 | 1402 | 38.7 1.6 | 0652 | 41.4 1.5 | 100 0 | 14 1 | 1.9 | 12.6 4.6 | 1508 | S | 177 | 0.00 | 23.28 | 0.164 0.009 | 479 15 | 90 10 |
| Stags Leap Dist (Chimney Rock) | 3/27/26 | 84.9 2.9 | 1428 | 40.0 0.8 | 0615 | 42.5 2.0 | 99 1 | 17 2 | 1.9 | 13.7 3.7 | 1518 | SSW | 198 | 0.00 | 22.51 | 0.152 0.014 | 440 18 | 100 0 |
| Yountville-South (Ranch 87) | 3/27/26 | 85.1 2.6 | 1416 | 41.2 1.6 | 0549 | 42.2 2.2 | 95 5 | 15 3 | 1.8 | 11.5 0.8 | 1255 | NNW | 339 | 0.00 | 23.66 | 0.157 0.014 | 448 14 | 60 10 |
| Yountville-SE (Ranch 85) | 3/27/26 | 86.2 3.8 | 1411 | 40.7 0.2 | 0642 | 42.6 3.1 | 96 2 | 14 4 | 1.0 | 9.2 6.3 | 1311 | NNW | 339 | 0.00 | 22.19 | - | 0 0 | 100 0 |
| Oak Knoll-East (Ranch 53) | 3/27/26 | 88.0 3.9 | 1349 | 41.9 1.7 | 0632 | 38.6 1.3 | 88 6 | 11 2 | 1.5 | 11.0 2.8 | 1510 | S | 185 | 0.00 | 20.46 | 0.154 0.002 | 447 20 | 60 10 |
| Napa-NW (Ranch 54) | 3/27/26 | 85.7 3.3 | 1352 | 42.4 1.8 | 0719 | 39.2 1.7 | 87 6 | 12 1 | 1.4 | 11.7 0.8 | 1431 | SSE | 148 | 0.00 | 22.69 | - | 0 0 | 100 0 |
| Napa-North (Ranch 29) | 3/27/26 | 84.8 1.3 | 1412 | 43.4 1.6 | 0657 | 42.3 1.2 | 100 0 | 15 1 | 1.6 | 14.1 2.1 | 1452 | S | 172 | 0.00 | 20.32 | 0.120 0.014 | 314 2 | 100 0 |
| Max | 92.1 | - | 60.8 | - | 42.6 | 100 | 17 | 2.4 | 14.1 | - | - | 0.00 | 27.89 | 0.171 | 525 | - | |
| Avg | - | - | - | - | 38.7 | - | - | 1.8 | - | - | - | - | - | - | - | - | |
| Min | 82.9 | - | 38.7 | - | 28.0 | 35 | 9 | 1.0 | 9.2 | - | - | 0.00 | 19.96 | 0.120 | 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 | 3/27/26 | 80.8 5.0 | 1440 | 60.6 9.7 | 0636 | 29.1 3.3 | 42 23 | 15 1 | 1.7 | 9.8 4.4 | 1602 | SSE | 161 | 0.00 | 29.29 | 0.143 0.000 | 398 25 | 100 10 |
| Mount George (Napa East) | 3/27/26 | 82.4 2.6 | 1550 | 42.9 2.3 | 0609 | 40.6 1.1 | 89 7 | 15 2 | 1.2 | 9.8 6.7 | 1447 | WSW | 241 | 0.00 | 11.88 | 0.148 0.017 | 484 32 | 100 0 |
| Napa-East (Palmaz 300') | 3/27/26 | 85.1 1.1 | 1422 | 45.3 3.0 | 0700 | 41.3 1.5 | 84 12 | 12 0 | 1.9 | 10.7 2.4 | 1445 | WSW | 238 | 0.00 | 18.31 | 0.147 0.003 | 443 23 | 100 0 |
| Napa-East (Palmaz 1200') | 3/27/26 | 80.3 | 1451 | 48.5 | 0603 | 39.9 | 65 | 13 | 2.6 | 13.8 | 1232 | ENE | 76 | - | - | 0.153 | 431 | 100 |
| Napa-East (Palmaz 1400') | 3/27/26 | 79.9 4.8 | 1455 | 52.4 10.7 | 0056 | 31.7 4.2 | 59 35 | 16 4 | 3.5 | 16.7 3.9 | 1042 | NNE | 24 | 0.00 | 24.80 | 0.176 0.006 | 479 23 | 100 20 |
| Wooden Valley | 3/27/26 | 82.0 5.1 | 1630 | 41.5 4.2 | 0725 | 44.3 3.5 | 92 3 | 16 2 | 1.8 | 11.7 1.3 | 1216 | NW | 326 | 0.00 | 24.00 | 0.125 0.032 | 440 76 | 100 0 |
| Napa-West Upper (Truchard) | 3/27/26 | 84.6 2.1 | 1331 | 51.1 6.3 | 0659 | 41.7 2.7 | 78 22 | 13 0 | 2.0 | 14.0 2.7 | 1416 | S | 170 | 0.00 | 20.16 | 0.172 0.014 | 495 9 | 100 0 |
| Napa-West Lower (Truchard) | 3/27/26 | 87.9 1.7 | 1337 | 39.7 4.5 | 0648 | 42.6 0.8 | 100 0 | 13 4 | - | - | - | - | - | - | - | - | 90 10 |
| Napa-South (Toyon Farms) | 3/27/26 | 83.8 2.9 | 1335 | 47.6 3.8 | 0657 | 47.5 1.8 | 96 3 | 25 10 | 2.4 | 11.5 1.5 | 1430 | SSE | 163 | 0.00 | 13.94 | 0.099 0.017 | 256 12 | 100 0 |
| Toyon Remote 1 | 3/27/26 | 85.4 3.4 | 1330 | 39.4 3.8 | 0656 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 3/27/26 | 83.1 3.0 | 1624 | 42.0 4.0 | 0628 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 3/27/26 | 86.4 4.6 | 1620 | 41.5 2.4 | 0553 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 3/27/26 | 83.6 2.5 | 1348 | 44.1 3.8 | 0650 | 41.6 2.9 | 90 6 | 13 14 | 2.1 | 9.6 1.0 | 1507 | SSE | 156 | 0.00 | 19.35 | 0.161 0.013 | 514 1 | 100 0 |
| Carneros (Saintsbury) | 3/27/26 | 82.8 3.2 | 1630 | 43.8 3.9 | 0650 | 43.1 2.3 | 91 9 | 22 11 | 2.2 | 13.8 4.7 | 1753 | WSW | 247 | 0.00 | 5.62 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 3/27/26 | 82.8 4.1 | 1313 | 44.2 3.6 | 0613 | 40.0 4.1 | - | - | 3.3 | 13.0 2.0 | 1814 | SW | 233 | 0.00 | 18.31 | 0.165 0.016 | 458 10 | 100 20 |
| Suscol Mtn (Ranch 93) | 3/27/26 | 82.3 4.6 | 1610 | 59.5 11.5 | 0056 | 31.2 9.7 | 44 36 | 13 4 | 3.0 | 14.1 0.7 | 1808 | NW | 321 | 0.00 | 13.80 | - | - | 100 0 |
| Suscol Upper (Ranch 92) | 3/27/26 | 83.4 5.0 | 1534 | 58.0 10.7 | 0101 | 33.0 9.2 | 45 35 | 13 6 | 1.2 | 11.8 1.8 | 1807 | SW | 233 | 0.00 | 18.16 | - | - | 100 0 |
| Stanly (Ranch 45) | 3/27/26 | 83.5 0.5 | 1634 | 43.0 2.7 | 0421 | 43.1 2.6 | 95 1 | 19 6 | 3.3 | 14.6 4.6 | 1816 | W | 270 | 0.00 | 19.65 | 0.181 0.015 | 523 17 | 100 20 |
| Carneros Upper (Ranch 81) | 3/27/26 | 83.1 1.6 | 1709 | 53.0 6.6 | 0708 | 39.7 3.5 | - | - | 4.1 | 19.0 5.7 | 1811 | W | 260 | - | - | - | - | 100 20 |
| Carneros (Mitsuko) | 3/27/26 | 82.1 3.1 | 1606 | 38.8 3.0 | 0630 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 3/27/26 | 83.5 0.4 | 1642 | 43.1 3.8 | 0656 | 43.3 0.8 | 100 0 | 24 24 | 1.2 | 10.6 0.1 | 1402 | SSE | 158 | 0.00 | 16.94 | 0.128 0.006 | 405 8 | 0 0 |
| Carneros (Milton Rd) | 3/27/26 | 82.6 3.8 | 1614 | 40.4 2.3 | 0701 | 42.2 1.9 | 93 2 | 21 11 | - | - | - | - | 0.00 | 17.00 | - | - | 0 0 |
| Max | 87.9 | - | 60.6 | - | 47.5 | 100 | 25 | 4.1 | 19.0 | - | - | 0.00 | 29.29 | 0.181 | 523 | - | |
| Avg | - | - | - | - | 39.8 | - | - | 2.3 | - | - | - | - | - | - | - | - | |
| Min | 79.9 | - | 38.8 | - | 29.1 | 42 | 12 | 1.2 | 9.6 | - | - | 0.00 | 5.62 | 0.099 | 256 | - |