Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | 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 | 10/17/25 | 76.5 5.4 | 1416 | 46.1 5.0 | 0554 | - | - | - | - | - | - | - | 0.00 | 3.12 | - | - | 20 20 |
Pope Valley (Weeks Lake) | 10/17/25 | 82.7 6.6 | 1430 | 37.5 4.6 | 0507 | 44.7 1.6 | 100 0 | 21 3 | 1.0 | 7.7 2.0 | 1317 | ESE | 121 | 0.00 | 1.40 | 0.106 0.013 | 372 25 | 20 20 |
Whiskey River Winery | 10/17/25 | 81.3 6.7 | 1449 | 37.6 5.4 | 0734 | 43.8 2.3 | 98 0 | 21 12 | 1.7 | 12.4 4.8 | 1532 | SE | 140 | 0.00 | 1.57 | - | - | 0 0 |
Dollarhide Base | 10/17/25 | 82.3 6.0 | 1421 | 41.5 4.1 | 0743 | 48.9 0.8 | 100 0 | 27 12 | 1.9 | 10.7 1.6 | 1443 | ENE | 70 | 0.00 | 1.11 | 0.115 0.020 | 363 25 | 20 20 |
Dollarhide 1AS Remote | 10/17/25 | 81.7 5.1 | 1657 | 39.5 4.3 | 0651 | 47.2 1.3 | 95 0 | 28 10 | 1.0 | 8.8 1.8 | 1711 | S | 182 | - | - | - | - | 20 20 |
Dollarhide 17B Remote | 10/17/25 | - | 0101 | - | 0101 | - | 100 0 | 12 0 | - | - | - | - | - | - | - | - | 0 0 |
Dollarhide 18A Remote | 10/17/25 | 83.6 5.0 | 1634 | 37.4 5.3 | 0716 | 46.7 1.6 | 100 0 | 26 10 | - | - | - | - | - | - | - | - | 20 20 |
Angwin | 10/17/25 | 73.0 5.0 | 1524 | 55.4 10.1 | 0545 | 40.0 2.5 | 69 31 | 29 4 | 3.3 | 14.5 2.2 | 0830 | NNE | 14 | 0.00 | 2.77 | 0.049 0.020 | 0 0 | 0 0 |
Lower Angwin (Pioneer) | 10/17/25 | 76.4 4.8 | 1328 | 41.0 2.3 | 0340 | - | - | - | 1.7 | 9.6 0.4 | 1105 | NNE | 14 | - | - | - | - | 20 20 |
Deer Park | 10/17/25 | 81.6 5.4 | 1518 | 48.9 1.8 | 0624 | 48.7 1.6 | 94 3 | 28 8 | 2.3 | 10.2 0.2 | 1535 | SW | 228 | 0.00 | 1.61 | 0.095 0.011 | 270 5 | 20 20 |
Lower Chiles Valley (Brown) | 10/17/25 | 80.0 5.4 | 1549 | 38.0 2.6 | 0727 | 44.7 1.2 | 100 0 | 25 5 | 1.3 | 10.3 1.7 | 1200 | ENE | 74 | 0.02 | 1.20 | 0.118 0.009 | 387 8 | 20 20 |
Moss Creek Vineyard/Reservior | 10/17/25 | 79.2 4.8 | 1518 | 41.5 2.5 | 0719 | 46.8 0.7 | 100 0 | 22 8 | - | - | - | - | 0.00 | 1.41 | - | - | 0 0 |
Max | 83.6 | - | 55.4 | - | 48.9 | 100 | 29 | 3.3 | 14.5 | - | - | 0.02 | 3.12 | 0.118 | 387 | - | |
Avg | - | - | - | - | 45.7 | - | - | 1.8 | - | - | - | - | - | - | - | - | |
Min | 73.0 | - | 37.4 | - | 40.0 | 69 | 12 | 1.0 | 7.7 | - | - | 0.00 | 1.11 | 0.049 | 0 | - |
Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | 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 | 10/17/25 | 79.8 6.5 | 1428 | 43.2 4.6 | 0710 | 49.3 2.7 | 100 0 | 31 20 | - | - | - | - | 0.00 | 1.74 | - | - | 20 20 |
Fotsch (Maple Lane) | 10/17/25 | 83.2 6.1 | 1632 | 40.9 2.3 | 0502 | 47.2 1.8 | 98 0 | 22 16 | 1.6 | 11.1 1.4 | 1456 | WSW | 250 | 0.00 | 1.61 | - | - | 20 20 |
Diamond Mtn (Schramsberg) | 10/17/25 | 78.5 5.3 | 1545 | 51.8 3.5 | 0653 | 47.8 2.6 | 90 9 | 26 14 | - | - | - | - | 0.00 | 1.88 | - | - | 20 20 |
Diamond Mtn (McEachran) | 10/17/25 | 80.0 5.7 | 1547 | 47.7 0.5 | 0628 | 47.7 2.5 | 94 4 | 24 14 | - | - | - | - | - | - | - | - | 20 20 |
St. Helena-North | 10/17/25 | 80.8 3.1 | 1454 | 43.6 1.9 | 0609 | 47.2 1.5 | 94 0 | 27 5 | 1.7 | 9.2 0.7 | 1312 | SE | 129 | 0.01 | 1.50 | 0.093 0.009 | 305 5 | 20 20 |
St. Helena (NVV Office) | 10/17/25 | 81.5 4.3 | 1529 | 44.0 1.1 | 0558 | - | - | - | 1.0 | 7.3 0.7 | 1703 | SE | 131 | 0.00 | 1.56 | - | - | 30 20 |
Tiara Fria (East St. Helena) | 10/17/25 | 81.0 4.0 | 1536 | 43.5 2.1 | 0724 | 49.3 1.0 | 97 0 | 29 7 | 1.2 | 8.9 3.1 | 1655 | S | 170 | 0.00 | 1.41 | - | - | 0 0 |
Rutherford Hill Estate | 10/17/25 | 81.3 4.2 | 1532 | 48.0 0.5 | 0626 | 50.8 0.8 | 100 0 | 28 8 | 1.4 | 12.5 3.9 | 1738 | SSE | 162 | 0.07 | 1.08 | 0.095 0.005 | 330 6 | 20 20 |
Rutherford-North (Mee Ln) | 10/17/25 | 80.1 0.8 | 1501 | 39.5 0.2 | 0456 | 47.0 0.1 | 96 0 | 28 4 | 2.4 | 12.7 1.5 | 1649 | SE | 127 | 0.00 | 1.37 | 0.107 0.011 | 346 7 | 20 20 |
Rutherford (STS) | 10/17/25 | 82.1 3.8 | 1506 | 43.4 0.8 | 0407 | 50.7 0.5 | 92 0 | 33 5 | 1.7 | 9.9 1.6 | 1722 | SSE | 148 | 0.00 | 1.43 | 0.114 0.006 | 395 8 | 20 20 |
Oakville-NE (Ranch 88) | 10/17/25 | 80.2 3.6 | 1504 | 40.4 2.0 | 0721 | 47.5 0.5 | 96 0 | 26 10 | 1.3 | 11.7 2.1 | 1741 | SE | 135 | 0.00 | 1.47 | 0.110 0.009 | 379 4 | 0 0 |
OV561-East | 9/29/25 | 75.9 4.2 | 1503 | 61.1 5.0 | 0714 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
Oakville | 9/29/25 | 74.8 5.3 | 1418 | 60.0 4.8 | 0701 | 56.9 1.0 | 90 5 | 46 17 | 2.7 | 13.7 1.5 | 1516 | SW | 225 | 0.00 | 0.02 | 0.075 0.016 | 213 77 | 80 10 |
OV518-West | 9/29/25 | 73.7 4.1 | 1454 | 60.5 4.5 | 0700 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
To Kalon Remote (TKKE) | 10/17/25 | 80.4 3.7 | 1537 | 42.5 1.9 | 0717 | - | - | - | - | - | - | - | - | - | - | - | 20 20 |
To Kalon | 10/17/25 | 79.6 2.9 | 1513 | 43.0 0.9 | 0557 | 49.7 0.1 | 100 0 | 32 5 | 1.8 | 13.0 3.5 | 1631 | SE | 137 | 0.00 | 1.41 | 0.110 0.010 | 371 6 | 0 0 |
To Kalon Remote (TKN5) | 10/17/25 | 81.3 3.9 | 1520 | 42.1 1.7 | 0637 | - | - | - | - | - | - | - | - | - | - | - | 20 20 |
Yountville (Ranch 67) | 10/17/25 | 76.9 3.2 | 1518 | 42.3 1.3 | 0736 | 48.2 0.1 | 96 0 | 33 7 | 2.0 | 11.0 2.6 | 1626 | SSE | 164 | 0.02 | 0.70 | 0.115 0.008 | 447 8 | 0 0 |
Stags Leap Dist (Silverado Vineyards) | 10/17/25 | 77.5 3.5 | 1504 | 42.8 1.3 | 0733 | 48.0 0.2 | 97 0 | 32 7 | 1.7 | 10.9 1.5 | 1609 | SE | 138 | 0.00 | 1.36 | 0.112 0.011 | 363 2 | 0 10 |
Borreo (Soda Canyon) | 10/17/25 | 76.8 5.2 | 1500 | 43.8 0.7 | 0715 | 48.2 0.1 | 98 0 | 33 12 | 1.4 | 8.4 0.9 | 1541 | S | 170 | 0.00 | 1.88 | 0.108 0.005 | 393 10 | 0 0 |
Wappo Hill Floor | 10/17/25 | 79.1 4.7 | 1524 | 42.7 2.9 | 0722 | 50.7 0.1 | 100 0 | 34 10 | 1.4 | 8.8 0.2 | 1653 | S | 173 | 0.00 | 1.48 | 0.097 0.006 | 333 2 | 20 20 |
Stags Leap Dist (Chimney Rock) | 10/17/25 | 79.2 3.0 | 1615 | 41.0 2.3 | 0652 | - | - | - | 1.4 | 9.2 0.9 | 1529 | S | 179 | 0.00 | 1.67 | 0.097 0.005 | 341 1 | 20 20 |
Yountville-South (Ranch 87) | 10/17/25 | 79.1 4.5 | 1557 | 43.8 1.8 | 0712 | 50.7 0.0 | 100 0 | 35 10 | 1.1 | 9.8 1.9 | 1626 | SSW | 194 | 0.00 | 1.42 | 0.096 0.006 | 323 9 | 80 20 |
Yountville-SE (Ranch 85) | 10/17/25 | 78.6 4.6 | 1525 | 42.7 2.2 | 0714 | 50.5 0.2 | 100 0 | 35 12 | 1.0 | 7.6 1.3 | 1447 | S | 170 | 0.00 | 1.54 | - | 0 0 | 20 20 |
Oak Knoll-East (Ranch 53) | 10/17/25 | 80.1 6.6 | 1533 | 42.3 3.1 | 0718 | 49.0 0.3 | 97 0 | 32 12 | 0.8 | 7.5 0.0 | 1539 | SE | 141 | 0.00 | 1.56 | 0.101 0.002 | 361 9 | 80 20 |
Napa-NW (Ranch 54) | 10/17/25 | 79.0 5.4 | 1558 | 43.0 2.8 | 0720 | 50.2 0.4 | 100 0 | 37 11 | 0.5 | 5.4 1.1 | 1348 | SW | 217 | 0.00 | 1.40 | - | 0 0 | 20 20 |
Napa-North (Ranch 29) | 10/17/25 | 78.2 5.2 | 1536 | 42.8 2.7 | 0707 | 50.8 0.2 | 100 0 | 36 12 | 0.9 | 7.5 0.8 | 1521 | SSW | 194 | 0.00 | 1.71 | 0.067 0.002 | 214 14 | 20 20 |
Max | 83.2 | - | 51.8 | - | 50.8 | 100 | 37 | 2.4 | 13.0 | - | - | 0.07 | 1.88 | 0.115 | 447 | - | |
Avg | - | - | - | - | 49.0 | - | - | 1.4 | - | - | - | - | - | - | - | - | |
Min | 76.8 | - | 39.5 | - | 47.0 | 90 | 22 | 0.5 | 5.4 | - | - | 0.00 | 0.70 | 0.067 | 0 | - |
Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | 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 | 10/17/25 | 73.8 7.2 | 1244 | 56.4 6.6 | 0120 | 43.2 5.1 | 67 28 | 32 5 | 1.3 | 8.3 0.1 | 1143 | N | 350 | 0.00 | 2.29 | 0.083 0.016 | 249 3 | 0 0 |
Mount George (Napa East) | 10/17/25 | 79.1 7.4 | 1644 | 42.6 0.3 | 0724 | 50.6 2.0 | 100 2 | 38 13 | 0.9 | 8.0 0.7 | 1516 | SW | 226 | 0.00 | 1.59 | 0.106 0.006 | 385 6 | 80 20 |
Napa-East (Palmaz 300') | 10/17/25 | 81.1 5.7 | 1604 | 43.3 0.0 | 0736 | 49.8 0.4 | 99 0 | 33 9 | 1.5 | 11.2 2.3 | 1631 | WSW | 238 | 0.00 | 1.41 | 0.099 0.004 | 342 8 | 50 20 |
Napa-East (Palmaz 1200') | 10/17/25 | 73.7 6.6 | 1422 | 44.1 0.6 | 0614 | 47.4 3.6 | 100 0 | 17 4 | 2.3 | 8.6 0.6 | 1405 | WSW | 250 | - | - | 0.099 0.005 | 365 8 | 0 0 |
Napa-East (Palmaz 1400') | 10/17/25 | 74.3 6.0 | 1429 | 42.5 0.6 | 0540 | 47.8 0.8 | 100 0 | 39 11 | 2.1 | 9.6 1.5 | 1544 | SW | 216 | 0.00 | 1.90 | 0.105 0.011 | 381 1 | 0 0 |
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) | 10/17/25 | 78.7 6.0 | 1509 | 47.0 0.3 | 0633 | - | - | - | 1.8 | 9.6 0.3 | 1525 | SSW | 192 | 0.00 | 1.49 | 0.111 0.008 | 378 6 | 20 20 |
Napa-West Lower (Truchard) | 10/17/25 | 79.9 6.5 | 1513 | 42.5 0.9 | 0711 | 49.4 0.6 | 100 0 | 33 14 | - | - | - | - | - | - | - | - | 50 20 |
Napa-South (Toyon Farms) | 10/17/25 | 80.4 8.1 | 1555 | 46.4 0.5 | 0755 | 53.0 0.8 | 100 0 | 43 13 | 1.3 | 10.0 0.5 | 1641 | S | 170 | 0.00 | 1.40 | 0.063 0.009 | 183 1 | 40 20 |
Toyon Remote 1 | 10/17/25 | 78.4 6.8 | 1517 | 42.6 0.6 | 0646 | - | - | - | - | - | - | - | - | - | - | - | - |
Toyon Remote 2 | 10/17/25 | 77.4 6.5 | 1559 | 44.3 0.3 | 0640 | - | - | - | - | - | - | - | - | - | - | - | - |
Toyon Remote 3 | 10/17/25 | 77.8 6.3 | 1603 | 43.0 0.9 | 0709 | - | - | - | - | - | - | - | - | - | - | - | - |
Dealy Lane (Ranch 80) | 10/17/25 | 77.8 5.8 | 1603 | 44.4 1.1 | 0709 | 50.0 0.0 | 97 0 | 37 10 | 1.9 | 9.1 1.2 | 1603 | SE | 142 | 0.00 | 1.60 | 0.105 0.011 | 376 21 | 40 20 |
Carneros (Saintsbury) | 10/17/25 | 77.4 7.0 | 1524 | 41.8 0.0 | 0709 | 49.8 0.8 | 100 0 | 40 12 | 1.8 | 10.1 0.1 | 1332 | S | 191 | 0.01 | 0.67 | - | - | 20 20 |
Suscol Lower (Ranch 35) | 10/12/25 | 77.7 2.5 | 1430 | 40.3 1.5 | 0523 | 43.6 2.8 | - | - | 3.5 | 16.8 9.9 | 1616 | SW | 220 | 0.00 | 0.19 | 0.129 0.005 | 393 4 | 0 10 |
Suscol Mtn (Ranch 93) | 10/17/25 | 77.0 4.9 | 1408 | 53.0 2.0 | 0539 | 48.9 3.1 | 85 9 | 39 11 | 2.9 | 15.8 2.6 | 1447 | SE | 133 | 0.00 | 1.61 | - | - | 30 20 |
Suscol Upper (Ranch 92) | 10/12/25 | 73.6 2.4 | 1427 | 51.4 0.0 | 0735 | 43.3 4.4 | 73 19 | 30 5 | 4.5 | 18.5 3.2 | 1723 | SSE | 166 | 0.00 | 0.44 | - | - | 30 10 |
Stanly (Ranch 45) | 10/17/25 | 77.4 7.1 | 1444 | 42.3 0.9 | 0658 | 49.6 1.2 | 98 1 | 39 12 | 2.8 | 11.6 1.0 | 1309 | SE | 139 | 0.00 | 1.74 | 0.123 0.014 | 426 3 | 40 20 |
Carneros Upper (Ranch 81) | 10/17/25 | 78.7 6.5 | 1528 | 50.0 0.0 | 0601 | 50.3 23.3 | 92 8 | 34 34 | 2.6 | 10.2 4.2 | 1337 | S | 182 | - | - | - | - | 20 20 |
Carneros (Mitsuko) | 10/17/25 | 77.7 6.6 | 1534 | 39.1 1.5 | 0702 | - | - | - | - | - | - | - | - | - | - | - | 20 20 |
Carneros Lower (Ranch 81) | 10/17/25 | 77.8 8.4 | 1438 | 42.7 0.9 | 0716 | 50.3 0.6 | 100 0 | 40 14 | 0.8 | 9.1 0.7 | 1558 | S | 174 | 0.00 | 0.75 | 0.095 0.017 | 332 38 | 20 20 |
Carneros (Milton Rd) | 10/17/25 | 77.7 6.2 | 1521 | 42.7 2.4 | 0521 | 49.8 0.7 | 96 0 | 38 11 | - | - | - | - | 0.00 | 1.22 | - | - | 20 20 |
Max | 81.1 | - | 56.4 | - | 53.0 | 100 | 43 | 2.9 | 15.8 | - | - | 0.01 | 2.29 | 0.123 | 426 | - | |
Avg | - | - | - | - | 49.3 | - | - | 1.8 | - | - | - | - | - | - | - | - | |
Min | 73.7 | - | 39.1 | - | 43.2 | 67 | 17 | 0.8 | 8.0 | - | - | 0.00 | 0.67 | 0.063 | 183 | - |