| 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 | 2/4/26 | 73.3 1.0 | 1522 | 41.8 1.5 | 0030 | - | - | - | - | - | - | - | 0.00 | 34.87 | - | - | - |
| Pope Valley (Weeks Lake) | 2/4/26 | 72.0 1.1 | 1318 | 27.5 1.2 | 0556 | 36.0 0.3 | 100 0 | 31 1 | 1.0 | 9.6 2.8 | 1419 | SE | 127 | 0.00 | 17.00 | 0.082 0.007 | 309 7 | 0 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 | 2/4/26 | 71.8 0.8 | 1422 | 32.6 0.3 | 0738 | 41.5 0.1 | 100 0 | 35 1 | 2.3 | 14.0 0.7 | 1310 | ENE | 71 | 0.00 | 14.85 | 0.099 0.001 | 334 6 | - |
| Dollarhide 1AS Remote | 2/4/26 | 74.6 0.9 | 1535 | 28.0 0.8 | 0703 | 37.0 0.1 | 96 0 | 32 2 | 1.1 | 10.4 0.5 | 1344 | ENE | 62 | - | - | - | - | - |
| Dollarhide 17B Remote | 2/4/26 | 75.2 0.8 | 1522 | 29.5 0.6 | 0750 | 39.6 0.3 | 100 0 | 31 1 | - | - | - | - | - | - | - | - | - |
| Dollarhide 18A Remote | 2/4/26 | 74.1 1.1 | 1621 | 25.9 0.6 | 0731 | 36.3 0.0 | 100 0 | 32 1 | - | - | - | - | - | - | - | - | - |
| Angwin | 2/4/26 | 64.9 0.5 | 1520 | 52.0 3.1 | 0706 | 30.6 1.3 | 54 2 | 24 3 | 8.3 | 18.4 0.4 | 1041 | NNW | 343 | 0.00 | 32.20 | 0.092 0.002 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 2/4/26 | 67.6 0.4 | 1520 | 44.6 6.8 | 2243 | - | - | - | 4.7 | 15.7 1.5 | 0936 | NE | 44 | - | - | - | - | - |
| Deer Park | 2/4/26 | 76.8 0.4 | 1508 | 51.8 4.6 | 0238 | 36.9 2.9 | 72 2 | 19 7 | 3.0 | 14.3 1.8 | 1432 | SE | 130 | 0.00 | 18.58 | 0.094 0.014 | 237 9 | - |
| Lower Chiles Valley (Brown) | 2/4/26 | 73.5 0.3 | 1520 | 32.7 2.1 | 0329 | 37.5 1.2 | 100 0 | 28 0 | 1.7 | 11.0 3.9 | 1102 | E | 95 | 0.00 | 14.48 | 0.099 0.003 | 332 12 | 0 0 |
| Moss Creek Vineyard/Reservior | 2/4/26 | 73.0 1.3 | 1319 | 34.6 0.4 | 0744 | 39.3 2.7 | 100 0 | 25 13 | - | - | - | - | 0.00 | 19.07 | - | - | - |
| Max | 76.8 | - | 52.0 | - | 41.5 | 100 | 35 | 8.3 | 18.4 | - | - | 0.00 | 34.87 | 0.099 | 334 | - | |
| Avg | - | - | - | - | 37.2 | - | - | 3.2 | - | - | - | - | - | - | - | - | |
| Min | 64.9 | - | 25.9 | - | 30.6 | 54 | 19 | 1.0 | 9.6 | - | - | 0.00 | 14.48 | 0.082 | 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 | 2/4/26 | 79.2 0.6 | 1352 | 33.7 1.5 | 0702 | 40.6 1.5 | 100 0 | 28 1 | - | - | - | - | 0.01 | 22.80 | - | - | 0 0 |
| Fotsch (Maple Lane) | 2/4/26 | 77.1 0.1 | 1405 | 30.6 1.8 | 0729 | 37.9 1.1 | 98 0 | 22 2 | 2.6 | 15.0 2.7 | 1313 | SE | 144 | 0.00 | 20.71 | - | - | - |
| Diamond Mtn (Schramsberg) | 2/4/26 | 70.8 0.8 | 1256 | 53.5 2.1 | 0358 | 35.4 4.0 | 70 0 | 24 4 | - | - | - | - | 0.00 | 20.87 | - | - | - |
| Diamond Mtn (McEachran) | 2/4/26 | 73.2 1.1 | 1401 | 46.2 2.2 | 0712 | 38.4 1.9 | 73 6 | 25 3 | - | - | - | - | - | - | - | - | - |
| St. Helena-North | 2/4/26 | 78.0 2.6 | 1451 | 34.2 1.6 | 0718 | 39.2 0.9 | 100 0 | 18 8 | 2.3 | 12.7 0.2 | 1103 | S | 187 | 0.00 | 20.85 | 0.082 0.008 | 234 14 | 0 0 |
| St. Helena (NVV Office) | 2/4/26 | 78.5 0.2 | 1449 | 35.1 0.7 | 0738 | - | - | - | 1.3 | 10.5 3.9 | 1415 | ENE | 58 | 0.00 | 18.28 | - | - | - |
| Tiara Fria (East St. Helena) | 2/4/26 | 77.0 0.7 | 1444 | 34.4 0.2 | 0616 | 40.0 0.3 | 97 0 | 21 7 | 1.7 | 9.9 0.8 | 1414 | E | 82 | 0.00 | 16.83 | - | - | - |
| Rutherford Hill Estate | 2/4/26 | 78.4 1.5 | 1328 | 49.0 2.3 | 0045 | 39.8 2.0 | 77 5 | 25 2 | 1.5 | 11.0 3.9 | 1355 | SW | 219 | 0.00 | 17.09 | 0.084 0.004 | 282 6 | 0 0 |
| Rutherford-North (Mee Ln) | 2/4/26 | 77.8 1.7 | 1406 | 31.7 1.2 | 0728 | 39.8 1.0 | 100 0 | 26 3 | 2.1 | 11.4 0.2 | 1239 | E | 93 | 0.00 | 15.43 | 0.076 0.006 | 240 5 | 0 0 |
| Rutherford (STS) | 2/4/26 | 79.9 2.8 | 1335 | 34.1 2.8 | 0718 | 42.0 1.2 | 92 0 | 31 4 | 1.9 | 10.9 0.4 | 1544 | NE | 54 | 0.00 | 16.15 | 0.094 0.000 | 332 5 | - |
| Oakville-NE (Ranch 88) | 2/4/26 | 79.3 0.9 | 1427 | 30.4 1.7 | 0711 | 37.1 1.8 | 96 0 | 20 4 | 0.8 | 11.0 1.5 | 1519 | ENE | 76 | 0.00 | 16.13 | 0.089 0.003 | 330 9 | 0 0 |
| OV561-East | 2/4/26 | 81.6 0.9 | 1549 | 33.6 1.5 | 0702 | - | - | - | - | - | - | - | - | - | - | - | - |
| Oakville | 2/4/26 | 80.0 2.1 | 1623 | 32.7 2.0 | 0655 | 39.8 1.4 | 98 0 | 20 5 | 1.5 | 10.6 1.3 | 1419 | NE | 50 | 0.00 | 16.67 | 0.090 0.005 | 323 7 | - |
| OV518-West | 2/4/26 | 77.4 2.1 | 1415 | 33.3 2.2 | 0658 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon Remote (TKKE) | 2/4/26 | 78.6 0.1 | 1442 | 32.6 3.3 | 0610 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon | 2/4/26 | 79.7 0.4 | 1431 | 34.7 1.6 | 0632 | 40.7 1.8 | 100 0 | 24 2 | 1.4 | 8.0 2.4 | 1442 | NNE | 20 | 0.00 | 17.83 | 0.083 0.000 | 297 8 | - |
| To Kalon Remote (TKN5) | 2/4/26 | 80.0 1.5 | 1526 | 32.3 1.4 | 0649 | - | - | - | - | - | - | - | - | - | - | - | - |
| Yountville (Ranch 67) | 2/4/26 | 77.8 1.6 | 1601 | 33.3 1.0 | 0720 | 40.3 1.3 | 98 0 | 25 2 | 1.5 | 7.8 4.8 | 1609 | SW | 216 | 0.00 | 15.30 | 0.084 0.006 | 361 11 | - |
| Stags Leap Dist (Silverado Vineyards) | 2/4/26 | 78.6 1.1 | 1449 | 34.1 2.2 | 0723 | 40.7 1.6 | 98 2 | 24 3 | 1.0 | 8.2 1.2 | 1611 | SSW | 197 | 0.00 | 18.56 | 0.087 0.001 | 321 2 | - |
| Borreo (Soda Canyon) | 2/4/26 | 73.9 0.5 | 1400 | 39.2 0.8 | 0705 | 37.6 5.0 | 92 3 | 18 14 | 2.8 | 18.5 9.7 | 1457 | NE | 55 | 0.00 | 18.92 | 0.104 0.019 | 332 7 | - |
| Wappo Hill Floor | 2/4/26 | 80.0 2.9 | 1449 | 30.5 0.9 | 0704 | 40.9 1.6 | 100 0 | 21 10 | 1.1 | 10.6 1.9 | 1533 | NE | 53 | 0.00 | 18.31 | 0.088 0.003 | 320 4 | - |
| Stags Leap Dist (Chimney Rock) | 2/4/26 | 82.1 3.4 | 1509 | 31.9 1.1 | 0712 | - | - | - | 1.3 | 10.7 4.2 | 1538 | NE | 48 | 0.00 | 16.36 | 0.077 0.003 | 287 10 | 0 0 |
| Yountville-South (Ranch 87) | 2/4/26 | 79.9 2.6 | 1510 | 32.4 0.9 | 0638 | 41.9 1.3 | 100 0 | 23 7 | 1.0 | 7.0 2.1 | 1607 | SW | 215 | 0.00 | 18.37 | 0.081 0.001 | 296 8 | - |
| Yountville-SE (Ranch 85) | 2/4/26 | 79.8 2.2 | 1510 | 33.5 0.2 | 0716 | 42.0 1.2 | 100 0 | 21 9 | 0.8 | 7.2 0.6 | 1710 | WSW | 246 | 0.00 | 17.30 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 2/4/26 | 77.7 1.4 | 1332 | 33.7 0.1 | 0655 | 41.4 0.7 | 97 0 | 27 1 | 1.3 | 7.4 0.0 | 1404 | SSW | 200 | 0.00 | 16.19 | 0.083 0.006 | 299 6 | - |
| Napa-NW (Ranch 54) | 2/4/26 | 75.8 2.1 | 1511 | 35.5 0.2 | 0718 | 42.0 1.6 | 100 0 | 29 0 | 1.4 | 8.2 0.1 | 1248 | NNW | 344 | 0.00 | 17.35 | - | 0 0 | 0 0 |
| Napa-North (Ranch 29) | 2/4/26 | 76.3 1.0 | 1441 | 34.9 0.5 | 0627 | 43.4 0.1 | 100 0 | 32 5 | 0.8 | 8.3 0.2 | 1454 | S | 169 | 0.00 | 15.88 | 0.054 0.001 | 185 7 | - |
| Max | 82.1 | - | 53.5 | - | 43.4 | 100 | 32 | 2.8 | 18.5 | - | - | 0.01 | 22.80 | 0.104 | 361 | - | |
| Avg | - | - | - | - | 40.0 | - | - | 1.5 | - | - | - | - | - | - | - | - | |
| Min | 70.8 | - | 30.4 | - | 35.4 | 70 | 18 | 0.8 | 7.0 | - | - | 0.00 | 15.30 | 0.054 | 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 | 2/4/26 | 69.6 3.3 | 1339 | 57.6 5.6 | 0652 | 34.0 3.1 | 47 4 | 27 1 | 2.3 | 11.1 1.2 | 1105 | N | 4 | 0.00 | 23.09 | 0.084 0.011 | 208 3 | 0 0 |
| Mount George (Napa East) | 2/4/26 | 81.1 4.4 | 1205 | 40.8 2.3 | 0614 | 46.7 2.2 | 100 0 | 34 1 | 1.7 | 12.4 2.0 | 1737 | NNE | 29 | 0.00 | 7.26 | 0.096 0.009 | 328 10 | - |
| Napa-East (Palmaz 300') | 2/4/26 | 76.8 0.6 | 1446 | 39.3 0.2 | 0703 | 42.4 2.2 | 100 0 | 29 2 | 2.0 | 16.2 8.5 | 1800 | ESE | 112 | 0.00 | 14.12 | 0.087 0.012 | 286 11 | - |
| Napa-East (Palmaz 1200') | 2/4/26 | 71.2 0.6 | 1451 | 43.7 1.5 | 0002 | 38.6 3.5 | 80 12 | 30 9 | 4.2 | 16.0 4.0 | 0525 | E | 97 | - | - | 0.104 0.021 | 307 9 | - |
| Napa-East (Palmaz 1400') | 2/4/26 | 68.8 0.2 | 1440 | 45.2 4.1 | 0207 | 39.4 2.9 | 77 22 | 40 4 | 5.8 | 18.6 2.7 | 0509 | NE | 41 | 0.00 | 19.62 | 0.113 0.025 | 327 20 | - |
| Wooden Valley | 4/30/25 | 78.8 0.4 | 1303 | 51.0 7.3 | 0600 | 49.9 1.6 | 90 5 | 34 2 | 4.0 | 16.6 0.3 | 0031 | SW | 220 | 0.00 | 30.39 | 0.212 0.008 | 668 2 | 0 0 |
| Napa-West Upper (Truchard) | 2/4/26 | 75.7 3.0 | 1450 | 46.2 3.9 | 0235 | - | - | - | 1.8 | 9.9 1.6 | 2209 | NNE | 24 | 0.00 | 15.67 | 0.088 0.005 | 323 10 | 0 0 |
| Napa-West Lower (Truchard) | 2/4/26 | 79.1 4.7 | 1459 | 32.6 1.0 | 0744 | 42.2 0.1 | 100 0 | 37 2 | - | - | - | - | - | - | - | - | 0 0 |
| Napa-South (Toyon Farms) | 2/4/26 | 77.1 3.2 | 1530 | 40.4 0.1 | 0730 | 48.4 0.4 | 100 0 | 42 7 | 1.1 | 6.3 1.8 | 1335 | SW | 217 | 0.00 | 9.91 | 0.043 0.000 | 158 4 | 0 0 |
| Toyon Remote 1 | 2/4/26 | 73.8 2.0 | 1320 | 34.2 0.0 | 0717 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 2/4/26 | 73.9 3.0 | 1449 | 32.6 0.3 | 0705 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 2/4/26 | 75.6 3.2 | 1518 | 33.1 0.2 | 0619 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 2/4/26 | 72.1 1.2 | 1502 | 39.1 3.6 | 0441 | 45.4 0.8 | 96 2 | 46 3 | 2.4 | 8.1 0.3 | 1434 | SE | 138 | 0.00 | 14.92 | 0.085 0.004 | 330 6 | - |
| Carneros (Saintsbury) | 2/4/26 | 71.2 0.3 | 1539 | 36.0 0.0 | 0734 | 45.0 0.1 | 100 0 | 47 4 | 1.9 | 10.6 0.8 | 1507 | SE | 132 | 0.00 | 1.77 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 2/4/26 | 74.1 1.1 | 1408 | 37.6 0.6 | 0733 | 44.0 0.2 | - | - | 3.2 | 19.1 4.9 | 1627 | ESE | 116 | 0.00 | 14.30 | 0.092 0.008 | 310 9 | - |
| Suscol Mtn (Ranch 93) | 2/4/26 | 68.9 0.1 | 1403 | 53.2 0.2 | 0700 | 43.1 0.2 | 76 6 | 25 16 | 11.6 | 31.6 11.3 | 1543 | E | 97 | 0.00 | 9.84 | - | - | - |
| Suscol Upper (Ranch 92) | 2/4/26 | 70.1 0.5 | 1415 | 53.3 1.0 | 0755 | 44.3 0.0 | 80 7 | 30 13 | 4.6 | 22.4 4.9 | 1504 | NE | 40 | 0.00 | 13.75 | - | - | 0 0 |
| Stanly (Ranch 45) | 2/4/26 | 71.6 1.5 | 1457 | 37.2 0.0 | 0704 | 44.6 0.4 | 96 1 | 44 5 | 4.6 | 14.9 0.5 | 1405 | SE | 132 | 0.00 | 15.43 | 0.103 0.003 | 366 14 | 0 0 |
| Carneros Upper (Ranch 81) | 2/4/26 | 72.1 0.6 | 1346 | 49.5 3.4 | 0751 | 46.5 0.4 | - | - | 4.0 | 13.7 1.4 | 1541 | ESE | 112 | - | - | - | - | 0 0 |
| Carneros (Mitsuko) | 2/4/26 | 70.4 0.7 | 1525 | 33.0 1.4 | 0415 | - | - | - | - | - | - | - | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 2/4/26 | 70.2 0.1 | 1448 | 36.5 0.0 | 0704 | 33.8 4.8 | 100 0 | 0 0 | 1.8 | 10.7 0.7 | 1624 | SE | 132 | 0.00 | 12.89 | 0.063 0.003 | 210 3 | 0 0 |
| Carneros (Milton Rd) | 2/4/26 | 68.8 0.3 | 1528 | 33.7 0.2 | 0508 | 43.4 0.1 | 96 0 | 50 1 | - | - | - | - | 0.00 | 5.74 | - | - | - |
| Max | 81.1 | - | 57.6 | - | 48.4 | 100 | 50 | 11.6 | 31.6 | - | - | 0.00 | 23.09 | 0.113 | 366 | - | |
| Avg | - | - | - | - | 42.6 | - | - | 3.5 | - | - | - | - | - | - | - | - | |
| Min | 68.8 | - | 32.6 | - | 33.8 | 47 | 0 | 1.1 | 6.3 | - | - | 0.00 | 1.77 | 0.043 | 158 | - |