| 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 | 12/14/25 | 65.9 2.4 | 1428 | 37.7 2.4 | 0641 | - | - | - | - | - | - | - | 0.00 | 11.97 | - | - | - |
| Pope Valley (Weeks Lake) | 12/14/25 | 68.1 3.7 | 1429 | 29.8 0.2 | 0004 | 35.8 0.4 | 100 0 | 37 7 | 0.8 | 5.3 0.7 | 1054 | SE | 124 | 0.01 | 5.60 | 0.040 0.002 | 197 4 | 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 | 12/14/25 | 66.3 0.1 | 1345 | 32.6 1.0 | 0237 | 39.3 0.8 | 100 0 | 48 2 | 2.0 | 9.0 2.7 | 1412 | ENE | 70 | 0.01 | 4.90 | 0.048 0.004 | 222 10 | - |
| Dollarhide 1AS Remote | 12/14/25 | 68.3 2.9 | 1332 | 30.5 0.9 | 0039 | 36.2 0.5 | 96 0 | 45 2 | 1.0 | 6.9 1.5 | 1422 | E | 81 | - | - | - | - | - |
| Dollarhide 17B Remote | 12/14/25 | 68.2 1.2 | 1413 | 30.8 0.3 | 0134 | 38.1 0.8 | 100 0 | 39 8 | - | - | - | - | - | - | - | - | - |
| Dollarhide 18A Remote | 12/14/25 | 66.5 2.7 | 1456 | 30.0 0.1 | 2359 | 36.7 0.5 | 100 0 | 43 0 | - | - | - | - | - | - | - | - | - |
| Angwin | 12/14/25 | 61.2 0.2 | 1528 | 50.5 1.9 | 0645 | 31.0 3.1 | 53 13 | 31 4 | 4.5 | 9.8 1.8 | 1035 | NNW | 338 | 0.00 | 10.82 | 0.056 0.019 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 12/14/25 | 63.7 1.3 | 1530 | 34.9 3.1 | 0110 | - | - | - | 2.5 | 9.6 1.0 | 1054 | N | 8 | - | - | - | - | - |
| Deer Park | 12/14/25 | 49.0 4.8 | 1539 | 34.0 3.6 | 0434 | 38.1 0.3 | 100 0 | 78 14 | 2.0 | 7.7 1.5 | 1318 | SSW | 193 | 0.01 | 6.28 | 0.017 0.014 | 102 70 | - |
| Lower Chiles Valley (Brown) | 12/14/25 | 60.3 2.9 | 1150 | 30.5 1.1 | 2037 | 36.6 0.6 | 100 0 | 44 2 | 2.6 | 15.8 4.7 | 1610 | SSW | 203 | 0.00 | 1.50 | 0.050 0.004 | 238 2 | 0 0 |
| Moss Creek Vineyard/Reservior | 12/13/25 | 60.5 1.2 | 1418 | 28.5 3.8 | 0638 | 36.6 2.9 | 100 0 | 49 1 | - | - | - | - | 0.01 | 6.19 | - | - | - |
| Max | 68.3 | - | 50.5 | - | 39.3 | 100 | 78 | 4.5 | 15.8 | - | - | 0.01 | 11.97 | 0.056 | 238 | - | |
| Avg | - | - | - | - | 36.5 | - | - | 2.2 | - | - | - | - | - | - | - | - | |
| Min | 49.0 | - | 29.8 | - | 31.0 | 53 | 31 | 0.8 | 5.3 | - | - | 0.00 | 1.50 | 0.017 | 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 | 12/14/25 | 49.4 1.1 | 1532 | 36.7 2.1 | 0521 | 40.7 1.3 | 100 0 | 86 8 | - | - | - | - | 0.01 | 7.40 | - | - | - |
| Fotsch (Maple Lane) | 12/14/25 | 48.5 3.2 | 1534 | 37.2 3.4 | 0606 | 39.5 2.0 | 98 0 | 78 9 | 1.9 | 9.7 0.7 | 1629 | SE | 128 | 0.01 | 6.48 | - | - | - |
| Diamond Mtn (Schramsberg) | 12/14/25 | 46.0 5.1 | 1620 | 34.7 3.0 | 0459 | 40.3 1.5 | 100 0 | 79 9 | - | - | - | - | 0.00 | 6.82 | - | - | - |
| Diamond Mtn (McEachran) | 12/14/25 | 44.2 2.7 | 1455 | 34.1 2.1 | 0541 | 38.5 0.2 | 100 0 | 96 12 | - | - | - | - | - | - | - | - | - |
| St. Helena-North | 12/14/25 | 44.2 8.5 | 1512 | 36.9 2.8 | 0626 | 38.5 1.6 | 95 0 | 91 25 | 1.7 | 9.4 0.2 | 1617 | SSE | 151 | 0.01 | 6.03 | 0.014 0.006 | 70 45 | - |
| St. Helena (NVV Office) | 12/14/25 | 43.1 10.6 | 1553 | 36.8 2.5 | 0717 | - | - | - | 1.0 | 6.2 0.2 | 0509 | NW | 311 | 0.01 | 5.89 | - | - | - |
| Tiara Fria (East St. Helena) | 12/14/25 | 43.1 10.3 | 1531 | 36.0 2.8 | 0727 | 38.7 1.8 | 97 0 | 96 27 | 1.6 | 6.1 0.4 | 1620 | ESE | 115 | 0.00 | 5.72 | - | - | - |
| Rutherford Hill Estate | 12/14/25 | 42.4 13.3 | 1514 | 35.3 2.2 | 0703 | 38.9 0.8 | 100 0 | 100 36 | 0.8 | 5.9 0.4 | 0903 | SSE | 155 | 0.00 | 4.02 | 0.014 0.008 | 74 59 | 0 0 |
| Rutherford-North (Mee Ln) | 12/14/25 | 35.3 18.1 | 0001 | 30.4 1.2 | 2358 | 32.5 0.8 | 98 1 | 97 28 | 1.5 | 7.7 0.0 | 1122 | SE | 140 | 0.01 | 5.13 | 0.011 0.008 | 68 59 | 0 0 |
| Rutherford (STS) | 12/14/25 | 43.3 13.5 | 1502 | 36.3 3.8 | 0715 | 36.1 0.6 | 88 3 | 85 15 | 1.4 | 6.4 0.3 | 0232 | N | 7 | 0.01 | 5.78 | 0.014 0.007 | 57 54 | - |
| Oakville-NE (Ranch 88) | 12/14/25 | 43.2 11.3 | 1513 | 36.7 5.2 | 0706 | 38.8 2.6 | 97 0 | 95 32 | 0.9 | 6.6 0.7 | 2351 | NNE | 20 | 0.01 | 5.58 | 0.013 0.012 | 70 68 | 0 0 |
| OV561-East | 12/14/25 | 44.0 14.1 | 1454 | 37.1 3.2 | 0748 | - | - | - | - | - | - | - | - | - | - | - | - |
| Oakville | 12/14/25 | 43.6 9.2 | 1529 | 36.7 3.8 | 0734 | 39.0 1.9 | 98 0 | 92 25 | 1.5 | 7.8 0.7 | 1150 | SE | 130 | 0.00 | 5.48 | 0.014 0.011 | 76 69 | - |
| OV518-West | 12/14/25 | 43.6 8.8 | 1539 | 36.8 3.4 | 0742 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon Remote (TKKE) | 12/14/25 | 44.1 10.6 | 1524 | 36.6 3.7 | 0728 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon | 12/14/25 | 43.3 10.9 | 1449 | 36.3 2.4 | 0530 | 39.5 1.5 | 100 0 | 99 30 | 1.5 | 7.6 1.1 | 1133 | SSE | 155 | 0.01 | 5.89 | 0.012 0.010 | 61 61 | - |
| To Kalon Remote (TKN5) | 12/14/25 | 44.2 11.6 | 1532 | 36.6 3.7 | 0743 | - | - | - | - | - | - | - | - | - | - | - | - |
| Yountville (Ranch 67) | 12/14/25 | 44.2 8.4 | 1505 | 35.9 3.1 | 0737 | 38.5 1.7 | 98 0 | 89 25 | 1.5 | 7.9 1.1 | 1134 | SSE | 154 | 0.01 | 4.77 | 0.020 0.011 | 204 62 | - |
| Stags Leap Dist (Silverado Vineyards) | 12/14/25 | 43.8 9.5 | 1552 | 35.8 3.5 | 0800 | 38.2 1.5 | 98 0 | 89 25 | 1.0 | 7.5 0.7 | 1133 | SSW | 211 | 0.00 | 6.03 | 0.015 0.011 | 86 49 | - |
| Borreo (Soda Canyon) | 12/14/25 | 45.7 7.0 | 1555 | 31.1 0.8 | 0303 | 37.0 2.2 | 99 0 | 90 25 | 1.1 | 4.9 1.4 | 0508 | NE | 55 | 0.01 | 6.86 | 0.018 0.013 | 111 73 | - |
| Wappo Hill Floor | 12/14/25 | 49.6 3.9 | 1544 | 35.4 1.2 | 0826 | 39.0 1.0 | 100 0 | 76 9 | 1.9 | 7.3 0.1 | 0233 | NNW | 340 | 0.00 | 5.88 | 0.014 0.013 | 88 65 | - |
| Stags Leap Dist (Chimney Rock) | 12/14/25 | 50.4 2.7 | 1543 | 36.5 2.0 | 0515 | - | - | - | 1.6 | 7.7 0.4 | 1117 | SSE | 166 | 0.01 | 6.26 | 0.030 0.003 | 78 58 | 0 0 |
| Yountville-South (Ranch 87) | 12/14/25 | 46.4 7.5 | 1539 | 36.9 3.5 | 0741 | 40.1 1.1 | 100 0 | 89 23 | 1.1 | 7.0 0.3 | 0216 | NW | 313 | 0.01 | 5.93 | 0.014 0.015 | 75 83 | - |
| Yountville-SE (Ranch 85) | 12/14/25 | 48.3 5.1 | 1522 | 36.8 0.5 | 0804 | 40.0 1.1 | 100 0 | 84 17 | 1.6 | 6.2 3.4 | 1130 | SSE | 155 | 0.01 | 5.92 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 12/14/25 | 48.9 4.3 | 1535 | 37.2 1.6 | 0759 | 39.5 0.8 | 98 0 | 77 13 | 1.2 | 7.1 0.5 | 1304 | WSW | 237 | 0.01 | 6.44 | 0.016 0.013 | 86 70 | - |
| Napa-NW (Ranch 54) | 12/14/25 | 48.0 3.5 | 1457 | 36.5 2.1 | 0506 | 39.8 1.0 | 100 0 | 79 11 | 1.0 | 5.7 2.1 | 0231 | N | 352 | 0.00 | 6.63 | - | 0 0 | 0 0 |
| Napa-North (Ranch 29) | 12/14/25 | 50.6 3.5 | 1513 | 37.3 0.4 | 0848 | 40.5 0.8 | 100 0 | 71 9 | 1.1 | 6.7 1.4 | 1544 | SSE | 159 | 0.00 | 6.44 | 0.014 0.010 | 74 43 | - |
| Max | 50.6 | - | 37.3 | - | 40.7 | 100 | 100 | 1.9 | 9.7 | - | - | 0.01 | 7.40 | 0.030 | 204 | - | |
| Avg | - | - | - | - | 38.7 | - | - | 1.3 | - | - | - | - | - | - | - | - | |
| Min | 35.3 | - | 30.4 | - | 32.5 | 88 | 71 | 0.8 | 4.9 | - | - | 0.00 | 4.02 | 0.011 | 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 | 12/14/25 | 61.3 4.1 | 1003 | 44.5 6.0 | 0107 | 36.4 4.4 | 83 17 | 37 12 | 1.2 | 6.6 0.4 | 1033 | NNE | 17 | 0.00 | 8.39 | 0.043 0.007 | 144 1 | 0 0 |
| Mount George (Napa East) | 12/14/25 | 61.7 5.1 | 1448 | 39.8 3.0 | 0700 | 44.2 3.0 | 100 0 | 72 4 | 1.1 | 5.8 0.0 | 0522 | ENE | 66 | 0.00 | 2.99 | 0.022 0.009 | 115 56 | - |
| Napa-East (Palmaz 300') | 12/14/25 | 52.5 2.0 | 1513 | 36.2 1.5 | 0437 | 39.7 1.2 | 100 0 | 67 5 | 1.0 | 6.6 0.8 | 0518 | E | 86 | 0.01 | 6.02 | 0.019 0.007 | 103 40 | - |
| Napa-East (Palmaz 1200') | 12/14/25 | 57.3 5.4 | 1343 | 32.4 4.1 | 0732 | 36.4 0.2 | 100 0 | 3 1 | 2.6 | 10.6 0.6 | 1344 | WNW | 285 | - | - | 0.037 0.013 | 215 10 | - |
| Napa-East (Palmaz 1400') | 12/14/25 | 59.4 3.0 | 1439 | 33.0 2.8 | 0531 | 38.3 1.8 | 100 3 | 48 10 | 3.3 | 11.2 1.3 | 1428 | NNE | 13 | 0.00 | 8.11 | 0.047 0.018 | 220 11 | - |
| 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) | 12/14/25 | 44.7 7.2 | 1458 | 37.0 0.4 | 0251 | - | - | - | 2.2 | 10.6 0.7 | 0456 | SW | 228 | 0.01 | 6.11 | 0.044 0.003 | 80 73 | 0 0 |
| Napa-West Lower (Truchard) | 12/14/25 | 48.7 3.2 | 1447 | 35.6 2.5 | 1804 | 39.4 0.0 | 100 0 | 86 17 | - | - | - | - | - | - | - | - | 0 0 |
| Napa-South (Toyon Farms) | 12/14/25 | 46.0 5.9 | 1436 | 37.9 0.1 | 1909 | 40.7 0.1 | 100 0 | 91 15 | 1.1 | 8.4 1.2 | 1535 | W | 263 | 0.00 | 2.35 | 0.007 0.008 | 46 44 | 0 0 |
| Toyon Remote 1 | 12/14/25 | 46.6 5.0 | 1502 | 34.5 3.2 | 1856 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 12/14/25 | 46.4 4.9 | 1451 | 34.4 4.0 | 1900 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 12/14/25 | 46.9 6.6 | 1448 | 34.9 3.0 | 1859 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 12/14/25 | 45.4 5.8 | 1432 | 36.0 0.9 | 1859 | 39.2 0.2 | 98 0 | 85 16 | 1.7 | 8.4 0.2 | 1521 | WNW | 291 | 0.00 | 5.78 | 0.015 0.014 | 81 82 | - |
| Carneros (Saintsbury) | 12/14/25 | 45.1 5.6 | 1437 | 35.0 0.9 | 0932 | 37.6 0.1 | 100 0 | 84 12 | 2.0 | 9.1 1.0 | 1522 | W | 262 | 0.00 | 1.64 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 12/14/25 | 50.0 2.6 | 1441 | 35.6 2.8 | 1854 | 39.6 0.5 | - | - | 2.1 | 8.6 0.9 | 0049 | N | 10 | 0.01 | 5.64 | 0.019 0.009 | 112 47 | - |
| Suscol Mtn (Ranch 93) | 12/14/25 | 45.1 7.6 | 1452 | 33.2 0.0 | 0448 | 38.2 0.0 | 100 0 | 96 21 | 3.0 | 15.9 2.5 | 0504 | NW | 324 | 0.01 | 6.03 | - | - | - |
| Suscol Upper (Ranch 92) | 12/14/25 | 45.6 4.9 | 1459 | 33.8 0.8 | 0418 | 38.7 0.1 | 100 0 | 89 15 | 0.0 | 4.6 4.0 | 0232 | WSW | 253 | 0.01 | 5.76 | - | - | 0 0 |
| Stanly (Ranch 45) | 12/14/25 | 49.9 1.7 | 1454 | 35.5 0.1 | 1834 | 37.7 0.2 | 99 0 | 72 5 | 2.4 | 10.8 1.2 | 1030 | SSE | 165 | 0.00 | 6.59 | 0.020 0.017 | 120 93 | 0 0 |
| Carneros Upper (Ranch 81) | 12/14/25 | 44.1 4.7 | 1513 | 37.5 1.2 | 0107 | 31.4 2.1 | - | - | 3.7 | 12.9 0.7 | 0230 | W | 281 | - | - | - | - | - |
| Carneros (Mitsuko) | 12/14/25 | 46.9 4.6 | 1504 | 33.0 4.4 | 1916 | - | - | - | - | - | - | - | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 12/14/25 | 45.3 2.3 | 1518 | 34.2 2.9 | 1925 | 39.7 0.2 | 100 0 | 90 11 | 1.5 | 9.9 0.9 | 2207 | S | 173 | 0.01 | 4.77 | 0.012 0.008 | 61 38 | - |
| Carneros (Milton Rd) | 12/14/25 | 50.3 0.6 | 1451 | 34.8 4.0 | 1902 | 39.4 0.0 | 96 0 | 72 0 | - | - | - | - | 0.00 | 4.63 | - | - | - |
| Max | 61.7 | - | 44.5 | - | 44.2 | 100 | 96 | 3.7 | 15.9 | - | - | 0.01 | 8.39 | 0.047 | 220 | - | |
| Avg | - | - | - | - | 38.5 | - | - | 1.9 | - | - | - | - | - | - | - | - | |
| Min | 44.1 | - | 32.4 | - | 31.4 | 83 | 3 | 0.0 | 4.6 | - | - | 0.00 | 1.64 | 0.007 | 46 | - |