| 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 | 1/7/26 | 55.3 2.1 | 1200 | 36.3 7.5 | 0822 | - | - | - | - | - | - | - | 0.00 | 34.57 | - | - | - |
| Pope Valley (Weeks Lake) | 1/7/26 | 64.2 1.5 | 1253 | 38.0 3.8 | 0707 | 41.7 5.2 | 100 0 | 42 8 | 2.6 | 16.0 6.1 | 1328 | WSW | 253 | 0.01 | 16.94 | 0.058 0.020 | 232 68 | 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 | 1/7/26 | 63.8 1.1 | 1242 | 43.2 3.5 | 0829 | 44.2 5.3 | 100 0 | 52 12 | 5.6 | 19.4 8.7 | 2126 | WSW | 256 | 0.00 | 14.79 | 0.062 0.022 | 244 66 | - |
| Dollarhide 1AS Remote | 1/7/26 | 64.7 1.7 | 1252 | 38.7 6.2 | 0735 | 43.6 4.9 | 96 0 | 51 11 | 2.4 | 15.2 7.7 | 2143 | WNW | 283 | - | - | - | - | - |
| Dollarhide 17B Remote | 1/7/26 | 63.6 0.4 | 1234 | 40.9 2.9 | 0714 | 44.4 5.0 | 100 0 | 52 11 | - | - | - | - | - | - | - | - | - |
| Dollarhide 18A Remote | 1/7/26 | 61.9 1.5 | 1247 | 38.2 7.0 | 0721 | 43.8 4.9 | 100 0 | 54 5 | - | - | - | - | - | - | - | - | - |
| Angwin | 1/7/26 | 51.8 1.3 | 1156 | 38.2 5.2 | 2328 | 39.4 5.4 | 100 0 | 58 18 | 3.4 | 17.7 3.7 | 2156 | W | 280 | 0.00 | 32.02 | 0.012 0.010 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 1/7/26 | 55.1 0.6 | 1144 | 37.7 7.4 | 0543 | - | - | - | 2.4 | 18.1 6.9 | 2000 | NW | 324 | - | - | - | - | - |
| Deer Park | 1/7/26 | 59.8 2.2 | 1451 | 45.0 2.3 | 2339 | 43.1 4.5 | 93 3 | 54 2 | 5.9 | 19.3 6.9 | 2357 | NNE | 26 | 0.00 | 18.50 | 0.049 0.016 | 164 41 | - |
| Lower Chiles Valley (Brown) | 1/7/26 | 58.6 1.9 | 1400 | 40.0 0.5 | 0006 | 42.1 3.4 | 100 0 | 52 10 | 3.4 | 17.5 3.3 | 1707 | WNW | 293 | 0.00 | 14.38 | 0.059 0.019 | 227 72 | 0 0 |
| Moss Creek Vineyard/Reservior | 1/7/26 | 62.5 2.2 | 1257 | 42.2 0.2 | 0755 | 42.9 3.6 | 100 0 | 47 14 | - | - | - | - | 0.00 | 19.00 | - | - | - |
| Max | 64.7 | - | 45.0 | - | 44.4 | 100 | 58 | 5.9 | 19.4 | - | - | 0.01 | 34.57 | 0.062 | 244 | - | |
| Avg | - | - | - | - | 42.8 | - | - | 3.7 | - | - | - | - | - | - | - | - | |
| Min | 51.8 | - | 36.3 | - | 39.4 | 93 | 42 | 2.4 | 15.2 | - | - | 0.00 | 14.38 | 0.012 | 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 | 12/21/25 | 60.3 0.8 | 1104 | 56.9 0.7 | 1918 | 58.1 0.7 | 100 0 | 94 6 | - | - | - | - | 2.50 | 11.63 | - | - | - |
| Fotsch (Maple Lane) | 1/7/26 | 61.0 1.0 | 1320 | 46.8 2.9 | 0226 | 43.8 5.3 | 97 1 | 51 7 | 4.7 | 20.8 13.5 | 2358 | WSW | 253 | 0.00 | 20.61 | - | - | - |
| Diamond Mtn (Schramsberg) | 1/7/26 | 57.7 1.3 | 1243 | 43.1 4.3 | 2353 | 43.1 4.8 | 99 1 | 62 6 | - | - | - | - | 0.00 | 20.76 | - | - | - |
| Diamond Mtn (McEachran) | 1/7/26 | 57.7 1.0 | 1419 | 45.5 1.0 | 0735 | 43.3 6.3 | 98 2 | 59 8 | - | - | - | - | - | - | - | - | - |
| St. Helena-North | 1/7/26 | 64.0 2.6 | 1413 | 44.9 0.3 | 0650 | 43.5 5.6 | 100 0 | 45 10 | 2.4 | 18.6 10.8 | 2319 | W | 280 | 0.00 | 20.73 | 0.047 0.015 | 169 40 | - |
| St. Helena (NVV Office) | 1/7/26 | 62.4 0.4 | 1307 | 46.0 1.8 | 1952 | - | - | - | 2.5 | 16.9 10.7 | 2322 | NW | 313 | 0.00 | 18.18 | - | - | - |
| Tiara Fria (East St. Helena) | 1/7/26 | 62.0 0.9 | 1426 | 42.9 1.3 | 0740 | 43.8 5.1 | 98 0 | 51 4 | 3.3 | 19.1 12.8 | 2325 | WNW | 292 | 0.01 | 16.72 | - | - | - |
| Rutherford Hill Estate | 1/7/26 | 63.4 1.5 | 1450 | 45.8 2.4 | 0726 | 44.1 4.7 | 96 4 | 49 6 | 2.1 | 14.9 6.6 | 1506 | NW | 305 | 0.00 | 17.00 | 0.046 0.003 | 193 12 | 0 0 |
| Rutherford-North (Mee Ln) | 1/7/26 | 62.4 1.5 | 1344 | 34.9 2.1 | 0723 | 40.9 4.1 | 100 0 | 52 5 | 2.8 | 17.8 10.5 | 2330 | NW | 304 | 0.00 | 15.31 | 0.051 0.014 | 194 35 | 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) | 1/7/26 | 62.8 1.0 | 1329 | 41.3 0.0 | 0709 | 42.5 4.6 | 97 0 | 49 4 | 0.4 | 17.3 10.6 | 2358 | N | 351 | 0.00 | 16.02 | 0.047 0.003 | 222 13 | 0 0 |
| OV561-East | 1/7/26 | 64.5 0.8 | 1424 | 43.2 0.4 | 2033 | - | - | - | - | - | - | - | - | - | - | - | - |
| Oakville | 1/7/26 | 62.4 0.4 | 1329 | 42.1 0.2 | 0720 | 43.3 4.4 | 98 0 | 50 6 | 2.3 | 14.8 3.9 | 1708 | WNW | 290 | 0.00 | 16.58 | 0.053 0.005 | 221 14 | - |
| OV518-West | 1/7/26 | 62.6 0.9 | 1323 | 42.2 0.8 | 0735 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon Remote (TKKE) | 1/7/26 | 62.3 0.4 | 1315 | 40.6 0.9 | 0727 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon | 1/7/26 | 62.7 1.2 | 1324 | 41.6 1.1 | 0745 | 44.5 4.2 | 100 0 | 53 4 | 2.8 | 17.1 8.6 | 2346 | WNW | 292 | 0.00 | 17.71 | 0.053 0.010 | 215 28 | - |
| To Kalon Remote (TKN5) | 1/7/26 | 62.7 0.8 | 1501 | 41.9 0.8 | 0655 | - | - | - | - | - | - | - | - | - | - | - | - |
| Yountville (Ranch 67) | 1/7/26 | 61.4 1.8 | 1434 | 43.4 2.2 | 0648 | 43.7 3.1 | 98 0 | 51 2 | 1.9 | 12.0 0.9 | 1352 | NNW | 347 | 0.08 | 14.96 | 0.054 0.001 | 274 16 | - |
| Stags Leap Dist (Silverado Vineyards) | 1/7/26 | 63.0 2.1 | 1511 | 43.6 0.9 | 0605 | 43.7 3.2 | 97 0 | 49 0 | 1.0 | 9.8 3.7 | 1405 | NNW | 330 | 0.00 | 18.44 | 0.053 0.007 | 237 33 | - |
| Borreo (Soda Canyon) | 1/7/26 | 60.6 2.4 | 1501 | 41.8 1.2 | 2010 | 43.3 3.3 | 99 0 | 53 2 | 1.7 | 11.0 1.5 | 1454 | NNW | 334 | 0.00 | 18.80 | 0.051 0.004 | 240 24 | - |
| Wappo Hill Floor | 1/7/26 | 65.0 0.9 | 1339 | 42.9 0.4 | 2017 | 44.4 3.8 | 100 0 | 51 2 | 1.9 | 16.7 1.4 | 2339 | N | 354 | 0.00 | 18.22 | 0.051 0.004 | 228 16 | - |
| Stags Leap Dist (Chimney Rock) | 1/7/26 | 65.2 1.8 | 1346 | 41.6 2.5 | 2018 | - | - | - | 2.0 | 15.3 5.3 | 1414 | W | 277 | 0.00 | 16.22 | 0.049 0.009 | 197 17 | 0 0 |
| Yountville-South (Ranch 87) | 1/7/26 | 63.1 2.0 | 1324 | 44.3 2.0 | 0602 | 45.6 3.1 | 100 0 | 52 3 | 1.6 | 12.9 3.1 | 2355 | NW | 320 | 0.00 | 18.26 | 0.053 0.008 | 232 32 | - |
| Yountville-SE (Ranch 85) | 1/7/26 | 63.5 0.2 | 1317 | 43.6 0.0 | 2024 | 45.6 3.3 | 100 0 | 54 3 | 1.8 | 15.0 4.6 | 2353 | NNE | 14 | 0.00 | 17.18 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 1/7/26 | 62.7 2.7 | 1323 | 44.9 2.1 | 0545 | 44.8 3.0 | 98 0 | 50 3 | 1.8 | 12.8 0.7 | 2333 | WNW | 288 | 0.00 | 16.09 | 0.049 0.005 | 202 13 | - |
| Napa-NW (Ranch 54) | 1/7/26 | 61.7 3.1 | 1437 | 44.8 0.8 | 0644 | 45.4 3.6 | 100 0 | 53 2 | 1.6 | 14.3 3.3 | 1351 | NW | 324 | 0.00 | 17.24 | - | 0 0 | 0 0 |
| Napa-North (Ranch 29) | 1/7/26 | 65.1 0.0 | 1336 | 45.9 1.7 | 0612 | 45.7 3.5 | 100 0 | 51 4 | 1.7 | 11.2 2.8 | 1548 | SW | 231 | 0.00 | 15.78 | 0.034 0.002 | 126 0 | - |
| Max | 65.2 | - | 46.8 | - | 45.7 | 100 | 62 | 4.7 | 20.8 | - | - | 0.08 | 20.76 | 0.054 | 274 | - | |
| Avg | - | - | - | - | 44.0 | - | - | 2.1 | - | - | - | - | - | - | - | - | |
| Min | 57.7 | - | 34.9 | - | 40.9 | 96 | 45 | 0.4 | 9.8 | - | - | 0.00 | 14.96 | 0.034 | 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 | 1/7/26 | 56.1 1.1 | 1204 | 41.9 3.4 | 2304 | 42.2 4.3 | 95 5 | 61 12 | 1.3 | 11.2 2.0 | 2327 | NW | 319 | 0.00 | 22.87 | 0.034 0.006 | 142 8 | 0 0 |
| Mount George (Napa East) | 1/7/26 | 65.2 0.6 | 1525 | 42.9 0.5 | 0608 | 46.5 2.2 | 99 1 | 56 2 | 1.3 | 10.2 6.5 | 1538 | SSW | 202 | 0.00 | 7.16 | 0.050 0.007 | 221 38 | - |
| Napa-East (Palmaz 300') | 1/7/26 | 62.5 2.2 | 1520 | 43.9 1.7 | 2046 | 45.4 2.3 | 100 0 | 50 2 | 1.4 | 11.1 7.8 | 1438 | W | 270 | 0.00 | 14.03 | 0.045 0.005 | 198 40 | - |
| Napa-East (Palmaz 1200') | 1/7/26 | 56.4 3.8 | 1415 | 42.1 0.0 | 0628 | 41.2 1.7 | 100 0 | 25 14 | 1.9 | 12.6 1.5 | 1443 | NW | 318 | - | - | 0.044 0.002 | 220 41 | - |
| Napa-East (Palmaz 1400') | 1/7/26 | 56.9 0.9 | 1324 | 42.8 0.5 | 2042 | 44.1 2.7 | 100 0 | 65 1 | 2.8 | 15.3 0.4 | 1416 | W | 271 | 0.00 | 19.50 | 0.043 0.007 | 216 34 | - |
| 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) | 1/7/26 | 62.1 1.9 | 1345 | 42.5 5.0 | 0805 | - | - | - | 3.4 | 16.1 4.4 | 1512 | WSW | 245 | 0.00 | 15.55 | 0.055 0.004 | 231 20 | 0 0 |
| Napa-West Lower (Truchard) | 1/7/26 | 63.2 2.5 | 1339 | 40.2 0.5 | 0724 | 44.3 1.7 | 100 0 | 52 2 | - | - | - | - | - | - | - | - | 0 0 |
| Napa-South (Toyon Farms) | 1/7/26 | 62.8 1.3 | 1307 | 44.9 1.3 | 0731 | 47.4 3.1 | 100 0 | 59 6 | 2.0 | 14.3 6.4 | 1623 | WSW | 244 | 0.00 | 9.78 | 0.032 0.008 | 132 28 | 0 0 |
| Toyon Remote 1 | 1/7/26 | 62.8 0.9 | 1428 | 41.5 1.3 | 1955 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 1/7/26 | 61.6 1.5 | 1302 | 43.5 1.4 | 0723 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 1/7/26 | 63.7 0.1 | 1430 | 42.1 0.3 | 1945 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 1/7/26 | 61.4 1.6 | 1306 | 41.7 2.6 | 0732 | 45.0 3.1 | 97 1 | 54 5 | 2.0 | 13.4 3.6 | 1354 | W | 270 | 0.00 | 14.80 | 0.050 0.001 | 235 25 | - |
| Carneros (Saintsbury) | 1/7/26 | 61.9 1.6 | 1340 | 40.9 2.0 | 0736 | 44.3 3.3 | 100 0 | 54 6 | 3.5 | 17.7 8.8 | 1516 | SW | 233 | 0.00 | 1.65 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 1/7/26 | 61.8 1.8 | 1331 | 42.7 1.7 | 0733 | 45.4 2.3 | - | - | 3.9 | 17.8 4.0 | 1531 | SW | 232 | 0.00 | 14.19 | 0.054 0.012 | 227 55 | - |
| Suscol Mtn (Ranch 93) | 1/7/26 | 58.1 3.6 | 1344 | 44.9 4.0 | 1947 | 44.5 2.4 | 99 7 | 58 2 | 7.2 | 25.2 2.0 | 1501 | NW | 314 | 0.00 | 9.81 | - | - | - |
| Suscol Upper (Ranch 92) | 1/7/26 | 58.6 6.3 | 1357 | 45.3 3.5 | 2039 | 45.1 2.3 | 100 8 | 58 4 | 3.7 | 19.9 1.8 | 1457 | SW | 216 | 0.00 | 13.66 | - | - | 0 0 |
| Stanly (Ranch 45) | 1/7/26 | 62.4 1.8 | 1226 | 41.3 2.0 | 0725 | 44.4 2.7 | 100 2 | 56 0 | 4.1 | 19.5 6.8 | 1524 | WSW | 249 | 0.00 | 15.30 | 0.058 0.004 | 254 20 | 0 0 |
| Carneros Upper (Ranch 81) | 1/7/26 | 59.9 4.8 | 1327 | 46.7 0.4 | 0724 | 33.6 14.2 | - | - | 7.1 | 26.4 14.2 | 1500 | W | 261 | - | - | - | - | - |
| Carneros (Mitsuko) | 1/7/26 | 61.1 3.9 | 1335 | 40.4 0.7 | 0728 | - | - | - | - | - | - | - | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 1/7/26 | 60.4 2.3 | 1346 | 43.3 0.2 | 0752 | 38.0 12.8 | 100 0 | 0 0 | 1.7 | 13.7 3.4 | 1313 | WNW | 292 | 0.00 | 12.79 | 0.039 0.001 | 146 16 | - |
| Carneros (Milton Rd) | 1/7/26 | 61.7 1.7 | 1328 | 42.9 0.4 | 0743 | 45.2 2.6 | 96 0 | 55 5 | - | - | - | - | 0.00 | 5.74 | - | - | - |
| Max | 65.2 | - | 46.7 | - | 47.4 | 100 | 65 | 7.2 | 26.4 | - | - | 0.00 | 22.87 | 0.058 | 254 | - | |
| Avg | - | - | - | - | 43.5 | - | - | 3.2 | - | - | - | - | - | - | - | - | |
| Min | 56.1 | - | 40.2 | - | 33.6 | 95 | 0 | 1.3 | 10.2 | - | - | 0.00 | 1.65 | 0.032 | 132 | - |