| 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 | 1/15/26 | 71.4 2.9 | 1454 | 45.3 2.5 | 0711 | - | - | - | - | - | - | - | 0.00 | 34.57 | - | - | - |
| Pope Valley (Weeks Lake) | 1/15/26 | 76.2 2.8 | 1416 | 27.6 1.2 | 0722 | 35.0 0.6 | 100 0 | 24 4 | 0.8 | 6.6 0.0 | 1341 | SSW | 195 | 0.00 | 16.94 | 0.061 0.005 | 256 2 | 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 | 1/15/26 | 76.0 1.1 | 1306 | 33.7 2.8 | 0701 | 39.8 0.3 | 100 0 | 27 1 | 1.9 | 12.3 1.8 | 1521 | E | 82 | 0.00 | 14.79 | 0.081 0.013 | 276 2 | - |
| Dollarhide 1AS Remote | 1/15/26 | 76.8 2.5 | 1321 | 27.2 1.2 | 0701 | 35.4 0.3 | 96 0 | 25 1 | 0.8 | 9.2 1.8 | 1435 | ENE | 61 | - | - | - | - | - |
| Dollarhide 17B Remote | 1/15/26 | 77.6 0.8 | 1441 | 30.1 1.4 | 0628 | - | 100 0 | 26 0 | - | - | - | - | - | - | - | - | - |
| Dollarhide 18A Remote | 1/15/26 | 74.2 5.2 | 1442 | 26.0 1.1 | 0717 | 34.8 0.2 | 100 0 | 27 4 | - | - | - | - | - | - | - | - | - |
| Angwin | 1/15/26 | 65.2 0.8 | 1430 | 50.0 3.1 | 0714 | 27.2 0.4 | 47 9 | 18 1 | 10.5 | 24.0 2.2 | 0355 | N | 351 | 0.00 | 32.03 | 0.119 0.002 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 1/15/26 | 68.8 1.0 | 1430 | 53.7 11.0 | 0727 | - | - | - | 5.4 | 17.5 2.3 | 1054 | NE | 49 | - | - | - | - | - |
| Deer Park | 1/15/26 | 77.6 7.6 | 1338 | 47.8 3.4 | 0351 | 35.4 7.3 | 88 0 | 20 21 | 2.5 | 14.5 7.6 | 1128 | E | 81 | 0.00 | 18.50 | 0.076 0.025 | 193 2 | - |
| Lower Chiles Valley (Brown) | 1/15/26 | 75.3 0.0 | 1403 | 36.5 4.8 | 2105 | 35.9 0.6 | 93 7 | 20 1 | 2.0 | 11.1 0.3 | 1301 | ESE | 123 | 0.00 | 14.38 | 0.090 0.009 | 266 4 | 0 0 |
| Moss Creek Vineyard/Reservior | 1/15/26 | 73.4 1.1 | 1419 | 36.6 4.6 | 0707 | 39.8 1.1 | 100 0 | 26 8 | - | - | - | - | 0.00 | 19.00 | - | - | - |
| Max | 77.6 | - | 53.7 | - | 39.8 | 100 | 27 | 10.5 | 24.0 | - | - | 0.00 | 34.57 | 0.119 | 276 | - | |
| Avg | - | - | - | - | 35.4 | - | - | 3.4 | - | - | - | - | - | - | - | - | |
| Min | 65.2 | - | 26.0 | - | 27.2 | 47 | 18 | 0.8 | 6.6 | - | - | 0.00 | 14.38 | 0.061 | 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 | 1/15/26 | 79.2 8.2 | 1344 | 35.2 1.6 | 0738 | 40.4 2.1 | 100 0 | 25 19 | - | - | - | - | 0.01 | 22.63 | - | - | - |
| Fotsch (Maple Lane) | 1/15/26 | 79.4 9.0 | 1444 | 33.3 1.3 | 0708 | 38.6 0.7 | 98 0 | 19 14 | 2.3 | 13.6 4.5 | 1226 | ESE | 103 | 0.00 | 20.61 | - | - | - |
| Diamond Mtn (Schramsberg) | 1/15/26 | 71.1 2.2 | 1237 | 48.8 1.3 | 0200 | 32.2 10.0 | 88 1 | 15 22 | - | - | - | - | 0.00 | 20.76 | - | - | - |
| Diamond Mtn (McEachran) | 1/15/26 | 73.2 3.3 | 1420 | 42.2 0.5 | 0458 | 38.7 3.3 | 96 7 | 25 13 | - | - | - | - | - | - | - | - | - |
| St. Helena-North | 1/15/26 | 77.0 8.3 | 1430 | 35.0 0.8 | 0603 | 38.5 2.1 | 100 1 | 19 14 | 2.2 | 12.1 4.2 | 1140 | S | 169 | 0.00 | 20.73 | 0.069 0.017 | 206 2 | - |
| St. Helena (NVV Office) | 1/15/26 | 80.3 10.6 | 1457 | 35.1 1.3 | 0602 | - | - | - | 1.0 | 6.7 1.1 | 1533 | NE | 41 | 0.00 | 18.18 | - | - | - |
| Tiara Fria (East St. Helena) | 1/15/26 | 77.7 9.8 | 1517 | 32.7 0.0 | 0633 | 38.5 2.0 | 98 0 | 19 29 | 1.7 | 11.2 3.9 | 1336 | E | 81 | 0.00 | 16.72 | - | - | - |
| Rutherford Hill Estate | 1/15/26 | 80.4 11.8 | 1601 | 44.7 1.8 | 0501 | 37.8 6.2 | 100 6 | 16 29 | 1.6 | 13.4 6.1 | 1241 | N | 4 | 0.00 | 17.00 | 0.068 0.016 | 229 5 | 0 0 |
| Rutherford-North (Mee Ln) | 1/15/26 | 78.6 11.3 | 1547 | 27.6 0.4 | 0625 | 36.0 2.6 | 100 0 | 19 29 | 1.5 | 13.2 2.8 | 1339 | NE | 50 | 0.00 | 15.31 | 0.062 0.010 | 232 5 | 0 0 |
| Rutherford (STS) | 12/19/25 | 58.0 1.5 | 1314 | 50.6 6.1 | 0008 | 49.5 3.1 | 84 6 | 79 2 | 3.6 | 16.7 9.8 | 1453 | ESE | 111 | 0.70 | 6.72 | 0.023 0.005 | 33 38 | - |
| Oakville-NE (Ranch 88) | 1/15/26 | 81.1 13.9 | 1502 | 30.3 0.9 | 0632 | 36.6 0.9 | 97 0 | 16 28 | 0.0 | 4.5 3.7 | 1258 | N | 0 | 0.00 | 16.02 | 0.059 0.004 | 274 5 | 0 0 |
| OV561-East | 1/15/26 | 82.3 12.3 | 1421 | 32.2 1.7 | 0457 | - | - | - | - | - | - | - | - | - | - | - | - |
| Oakville | 1/15/26 | 80.7 15.0 | 1437 | 31.8 1.1 | 0657 | 38.8 0.4 | 98 0 | 17 29 | 1.7 | 9.7 0.9 | 1019 | ESE | 119 | 0.00 | 16.58 | 0.069 0.010 | 259 2 | - |
| OV518-West | 1/15/26 | 76.8 11.1 | 1344 | 32.2 0.7 | 0438 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon Remote (TKKE) | 1/15/26 | 87.8 18.7 | 1411 | 32.0 1.9 | 0616 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon | 1/15/26 | 79.8 13.2 | 1510 | 32.0 0.4 | 0722 | 39.2 1.9 | 100 0 | 21 31 | 1.4 | 8.0 1.0 | 1205 | NNW | 331 | 0.00 | 17.71 | 0.065 0.010 | 248 6 | - |
| To Kalon Remote (TKN5) | 1/15/26 | 78.8 11.4 | 1449 | 32.4 1.0 | 0734 | - | - | - | - | - | - | - | - | - | - | - | - |
| Yountville (Ranch 67) | 1/15/26 | 78.2 13.0 | 1353 | 31.4 1.1 | 0739 | 39.3 0.6 | 98 0 | 21 26 | 1.4 | 10.4 0.1 | 1234 | WNW | 303 | 0.00 | 15.15 | 0.071 0.007 | 341 3 | - |
| Stags Leap Dist (Silverado Vineyards) | 1/15/26 | 78.1 12.6 | 1351 | 32.2 2.0 | 0711 | 39.7 0.7 | 100 2 | 23 23 | 0.6 | 6.2 3.9 | 1353 | S | 173 | 0.00 | 18.44 | 0.066 0.002 | 258 3 | - |
| Borreo (Soda Canyon) | 1/15/26 | 74.3 8.9 | 1349 | 38.3 1.3 | 0539 | 42.8 1.0 | 97 0 | 25 23 | 1.8 | 8.5 2.1 | 1208 | E | 101 | 0.00 | 18.80 | 0.070 0.010 | 274 3 | - |
| Wappo Hill Floor | 1/15/26 | 73.6 7.3 | 1510 | 31.2 1.4 | 0737 | 40.7 0.8 | 100 0 | 40 9 | 1.1 | 8.3 0.3 | 1346 | SSE | 161 | 0.00 | 18.22 | 0.066 0.006 | 268 4 | - |
| Stags Leap Dist (Chimney Rock) | 1/15/26 | 74.3 6.0 | 1326 | 32.2 0.7 | 0347 | - | - | - | 1.2 | 7.5 1.3 | 1340 | SSW | 197 | 0.01 | 16.24 | 0.056 0.004 | 228 3 | 0 0 |
| Yountville-South (Ranch 87) | 1/15/26 | 74.5 8.0 | 1327 | 33.0 1.8 | 0741 | 41.8 0.8 | 100 0 | 37 13 | 1.1 | 8.5 0.7 | 1337 | S | 178 | 0.00 | 18.26 | 0.064 0.005 | 256 2 | - |
| Yountville-SE (Ranch 85) | 1/15/26 | 74.7 8.3 | 1547 | 32.5 1.3 | 0555 | 41.6 0.9 | 100 0 | 40 11 | 0.9 | 7.5 0.4 | 1332 | S | 183 | 0.00 | 17.18 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 1/15/26 | 73.2 7.2 | 1508 | 33.1 1.4 | 0523 | 41.1 0.9 | 98 0 | 39 9 | 0.8 | 7.1 1.6 | 1334 | S | 186 | 0.00 | 16.09 | 0.062 0.005 | 245 4 | - |
| Napa-NW (Ranch 54) | 1/15/26 | 70.7 7.1 | 1534 | 33.8 1.2 | 0716 | 42.1 0.0 | 100 0 | 38 17 | 1.0 | 6.8 2.3 | 1454 | SSE | 161 | 0.00 | 17.24 | - | 0 0 | 0 0 |
| Napa-North (Ranch 29) | 1/15/26 | 73.3 7.4 | 1425 | 33.6 1.1 | 0656 | 43.1 2.0 | 100 0 | 40 8 | 0.9 | 7.5 0.4 | 1320 | SSW | 204 | 0.00 | 15.78 | 0.043 0.006 | 148 3 | - |
| Max | 87.8 | - | 48.8 | - | 43.1 | 100 | 40 | 2.3 | 13.6 | - | - | 0.01 | 22.63 | 0.071 | 341 | - | |
| Avg | - | - | - | - | 39.4 | - | - | 1.3 | - | - | - | - | - | - | - | - | |
| Min | 70.7 | - | 27.6 | - | 32.2 | 88 | 15 | 0.0 | 4.5 | - | - | 0.00 | 15.15 | 0.043 | 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 | 1/15/26 | 69.4 0.7 | 1253 | 57.1 0.0 | 0652 | 30.8 0.0 | 39 18 | 20 2 | 1.7 | 10.6 2.2 | 0905 | N | 0 | 0.00 | 22.87 | 0.068 0.002 | 158 0 | 0 0 |
| Mount George (Napa East) | 1/15/26 | 79.0 6.8 | 1442 | 39.6 2.5 | 0528 | 47.9 2.3 | 100 0 | 42 8 | 1.2 | 6.6 0.7 | 0550 | NNE | 18 | 0.00 | 7.16 | 0.070 0.008 | 268 6 | - |
| Napa-East (Palmaz 300') | 1/15/26 | 74.9 6.3 | 1431 | 38.5 3.1 | 0722 | 44.7 1.9 | 100 0 | 36 10 | 1.4 | 6.4 0.7 | 1551 | SSW | 196 | 0.00 | 14.03 | 0.058 0.006 | 231 4 | - |
| Napa-East (Palmaz 1200') | 1/15/26 | 71.2 5.4 | 1353 | 43.0 1.3 | 0118 | 38.4 0.4 | 86 4 | 32 0 | 3.9 | 14.5 2.0 | 1048 | NNE | 18 | - | - | 0.085 0.017 | 248 4 | - |
| Napa-East (Palmaz 1400') | 1/15/26 | 69.3 3.4 | 1346 | 49.9 8.6 | 0449 | 38.2 0.3 | 70 24 | 30 5 | 6.2 | 17.6 1.2 | 1051 | NNE | 13 | 0.00 | 19.50 | 0.102 0.029 | 270 9 | - |
| 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) | 1/15/26 | 69.4 5.4 | 1514 | 42.5 3.1 | 0729 | - | - | - | 1.5 | 8.6 4.5 | 0252 | NE | 48 | 0.00 | 15.55 | 0.065 0.004 | 267 4 | 0 0 |
| Napa-West Lower (Truchard) | 1/15/26 | 70.6 5.8 | 1512 | 31.8 1.5 | 0725 | 41.2 1.9 | 100 0 | 51 5 | - | - | - | - | - | - | - | - | 0 0 |
| Napa-South (Toyon Farms) | 1/15/26 | 69.5 4.9 | 1447 | 37.9 0.1 | 0638 | 47.5 2.0 | 100 0 | 57 5 | 1.2 | 6.6 4.0 | 1134 | SW | 225 | 0.00 | 9.78 | 0.034 0.001 | 136 3 | 0 0 |
| Toyon Remote 1 | 1/15/26 | 70.0 3.7 | 1422 | 33.8 0.1 | 0715 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 1/15/26 | 68.9 4.8 | 1445 | 32.5 0.2 | 0731 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 1/15/26 | 72.0 5.8 | 1449 | 32.8 0.6 | 0702 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 1/15/26 | 69.5 5.7 | 1451 | 38.2 1.9 | 0714 | 45.0 2.1 | 96 1 | 48 8 | 2.4 | 7.2 2.0 | 1143 | S | 182 | 0.00 | 14.80 | 0.062 0.004 | 272 8 | - |
| Carneros (Saintsbury) | 1/15/26 | 68.4 5.6 | 1444 | 34.1 0.1 | 0646 | 43.8 1.3 | 100 0 | 54 4 | 1.8 | 6.5 4.6 | 1404 | SSE | 167 | 0.00 | 1.65 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 1/15/26 | 70.4 5.0 | 1434 | 36.4 0.6 | 0747 | 44.7 2.2 | - | - | 2.2 | 11.5 1.8 | 1420 | SE | 145 | 0.00 | 14.19 | 0.061 0.004 | 253 4 | - |
| Suscol Mtn (Ranch 93) | 1/15/26 | 69.8 5.6 | 1633 | 51.9 3.8 | 0206 | 43.3 1.1 | 74 3 | 25 20 | 6.0 | 29.4 1.8 | 0129 | ESE | 116 | 0.00 | 9.83 | - | - | - |
| Suscol Upper (Ranch 92) | 1/15/26 | 70.9 4.0 | 1450 | 52.4 5.2 | 0209 | 44.4 1.6 | 72 7 | 31 17 | 1.7 | 18.1 4.9 | 0303 | NE | 50 | 0.00 | 13.66 | - | - | 0 0 |
| Stanly (Ranch 45) | 1/15/26 | 67.9 0.5 | 1335 | 35.2 0.2 | 0640 | 43.3 1.5 | 99 1 | 53 7 | 3.3 | 12.1 0.2 | 1414 | ESE | 113 | 0.00 | 15.30 | 0.074 0.006 | 303 8 | 0 0 |
| Carneros Upper (Ranch 81) | 1/15/26 | 66.4 2.7 | 1429 | 44.5 0.0 | 0842 | 46.9 1.9 | - | - | 2.2 | 8.0 2.1 | 1119 | SW | 228 | - | - | - | - | - |
| Carneros (Mitsuko) | 1/15/26 | 69.3 6.1 | 1438 | 31.4 0.8 | 0709 | - | - | - | - | - | - | - | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 1/15/26 | 65.0 0.8 | 1344 | 36.1 0.9 | 0714 | 14.1 5.5 | 100 0 | 0 0 | 1.2 | 8.1 1.5 | 1257 | S | 187 | 0.00 | 12.79 | 0.043 0.001 | 170 2 | - |
| Carneros (Milton Rd) | 1/15/26 | 65.8 2.5 | 1342 | 32.4 1.9 | 0707 | 42.4 1.3 | 96 0 | 58 1 | - | - | - | - | 0.00 | 5.74 | - | - | - |
| Max | 79.0 | - | 57.1 | - | 47.9 | 100 | 58 | 6.2 | 29.4 | - | - | 0.00 | 22.87 | 0.102 | 303 | - | |
| Avg | - | - | - | - | 41.1 | - | - | 2.5 | - | - | - | - | - | - | - | - | |
| Min | 65.0 | - | 31.4 | - | 14.1 | 39 | 0 | 1.2 | 6.4 | - | - | 0.00 | 1.65 | 0.034 | 136 | - |