| 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 | 2/1/26 | 67.0 1.3 | 1422 | 38.8 1.0 | 0445 | - | - | - | - | - | - | - | 0.00 | 34.87 | - | - | - |
| Pope Valley (Weeks Lake) | 2/1/26 | 71.7 1.6 | 1433 | 31.1 0.6 | 0549 | 37.8 0.4 | 100 0 | 26 7 | 0.7 | 6.1 0.2 | 0204 | WNW | 288 | 0.00 | 17.00 | 0.062 0.011 | 264 45 | 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 | 2/1/26 | 71.4 2.7 | 1449 | 36.2 4.0 | 0756 | 41.9 0.1 | 100 0 | 28 19 | 1.5 | 13.5 4.2 | 0212 | W | 281 | 0.00 | 14.85 | 0.068 0.006 | 281 34 | - |
| Dollarhide 1AS Remote | 2/1/26 | 73.7 4.0 | 1523 | 30.8 0.6 | 2357 | 38.3 0.3 | 95 0 | 27 17 | 0.7 | 7.5 0.9 | 0213 | WNW | 297 | - | - | - | - | - |
| Dollarhide 17B Remote | 2/1/26 | 73.8 4.0 | 1530 | 34.1 2.8 | 0654 | 40.6 0.0 | 100 0 | 29 15 | - | - | - | - | - | - | - | - | - |
| Dollarhide 18A Remote | 2/1/26 | 75.1 6.8 | 1526 | 30.1 0.6 | 2335 | 38.1 0.2 | 100 0 | 26 17 | - | - | - | - | - | - | - | - | - |
| Angwin | 2/1/26 | 63.2 3.0 | 1437 | 49.4 0.5 | 0206 | 32.8 0.3 | 63 2 | 19 14 | 3.8 | 13.3 1.1 | 2053 | NW | 317 | 0.00 | 32.20 | 0.040 0.025 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 2/1/26 | 66.0 3.0 | 1144 | 36.3 0.2 | 0020 | - | - | - | 2.0 | 10.0 1.2 | 1416 | SW | 222 | - | - | - | - | - |
| Deer Park | 2/1/26 | 68.9 2.0 | 1607 | 47.1 2.5 | 0816 | 39.3 0.6 | 86 5 | 22 8 | 2.8 | 12.6 0.9 | 1443 | NW | 309 | 0.00 | 18.58 | 0.074 0.005 | 200 22 | - |
| Lower Chiles Valley (Brown) | 2/1/26 | 69.3 2.9 | 1319 | 33.5 1.5 | 2324 | 38.2 1.4 | 100 0 | 28 9 | 1.3 | 10.4 0.8 | 1503 | WNW | 290 | 0.00 | 14.48 | 0.067 0.003 | 251 31 | 0 0 |
| Moss Creek Vineyard/Reservior | 2/1/26 | 71.8 8.2 | 1545 | 35.6 1.2 | 0724 | 38.4 1.9 | 100 0 | 18 26 | - | - | - | - | 0.00 | 19.07 | - | - | - |
| Max | 75.1 | - | 49.4 | - | 41.9 | 100 | 29 | 3.8 | 13.5 | - | - | 0.00 | 34.87 | 0.074 | 281 | - | |
| Avg | - | - | - | - | 38.4 | - | - | 1.8 | - | - | - | - | - | - | - | - | |
| Min | 63.2 | - | 30.1 | - | 32.8 | 63 | 18 | 0.7 | 6.1 | - | - | 0.00 | 14.48 | 0.040 | 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 | 2/1/26 | 69.1 3.4 | 1347 | 38.4 4.3 | 0655 | 42.2 0.1 | 100 0 | 31 4 | - | - | - | - | 0.00 | 22.79 | - | - | 0 |
| Fotsch (Maple Lane) | 2/1/26 | 70.9 0.7 | 1551 | 36.6 4.8 | 2237 | 39.3 0.6 | 97 0 | 22 9 | 2.5 | 12.7 3.0 | 1406 | WSW | 252 | 0.00 | 20.71 | - | - | - |
| Diamond Mtn (Schramsberg) | 2/1/26 | 66.6 1.4 | 1349 | 47.3 1.2 | 0241 | 39.4 1.9 | 83 3 | 23 7 | - | - | - | - | 0.00 | 20.87 | - | - | - |
| Diamond Mtn (McEachran) | 2/1/26 | 68.6 0.7 | 1517 | 45.3 1.2 | 0218 | 39.7 1.6 | 92 6 | 17 17 | - | - | - | - | - | - | - | - | - |
| St. Helena-North | 2/1/26 | 71.8 1.9 | 1437 | 39.2 3.6 | 2356 | 39.6 1.2 | 100 0 | 16 12 | 1.8 | 11.0 2.4 | 1432 | W | 278 | 0.00 | 20.85 | 0.051 0.002 | 149 21 | 0 |
| St. Helena (NVV Office) | 2/1/26 | 71.1 0.1 | 1435 | 39.9 4.1 | 0653 | - | - | - | 1.1 | 9.0 2.4 | 1441 | NW | 325 | 0.00 | 18.28 | - | - | - |
| Tiara Fria (East St. Helena) | 2/1/26 | 71.4 0.6 | 1446 | 38.6 2.9 | 2336 | 40.7 0.5 | 97 1 | 20 12 | 1.6 | 8.4 0.3 | 1512 | NNW | 336 | 0.00 | 16.83 | - | - | - |
| Rutherford Hill Estate | 2/1/26 | 71.3 1.1 | 1618 | 46.5 0.9 | 0420 | 42.8 1.7 | 85 5 | 36 3 | 1.3 | 7.0 2.8 | 0011 | ESE | 119 | 0.00 | 17.09 | 0.057 0.001 | 225 21 | 0 0 |
| Rutherford-North (Mee Ln) | 2/1/26 | 72.7 1.5 | 1613 | 35.5 2.0 | 0523 | 41.3 1.1 | 100 0 | 38 6 | 1.8 | 7.5 1.5 | 1149 | ESE | 110 | 0.00 | 15.43 | 0.051 0.001 | 189 19 | 0 0 |
| Rutherford (STS) | 2/1/26 | 73.1 1.9 | 1444 | 37.8 1.1 | 0458 | 43.0 0.1 | 92 0 | 41 0 | 1.6 | 6.5 2.5 | 0921 | WNW | 293 | 0.00 | 16.15 | 0.064 0.002 | 260 23 | - |
| Oakville-NE (Ranch 88) | 2/1/26 | 71.4 1.4 | 1510 | 34.8 1.5 | 0602 | 40.1 0.2 | 96 0 | 34 1 | 0.8 | 7.6 0.9 | 1154 | S | 174 | 0.00 | 16.13 | 0.060 0.002 | 254 30 | 0 0 |
| OV561-East | 2/1/26 | 73.3 2.6 | 1459 | 36.5 1.7 | 0615 | - | - | - | - | - | - | - | - | - | - | - | - |
| Oakville | 2/1/26 | 71.5 1.6 | 1422 | 36.6 2.4 | 0559 | 41.6 0.2 | 98 0 | 34 2 | 1.7 | 8.3 0.4 | 1142 | SSE | 147 | 0.00 | 16.67 | 0.062 0.004 | 256 30 | - |
| OV518-West | 2/1/26 | 68.7 0.5 | 1421 | 37.4 1.2 | 0657 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon Remote (TKKE) | 2/1/26 | 70.9 0.5 | 1533 | 35.9 1.3 | 2339 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon | 2/1/26 | 70.9 0.7 | 1528 | 37.7 2.2 | 0639 | 42.5 0.4 | 100 0 | 40 3 | 1.5 | 7.1 2.0 | 1143 | SE | 140 | 0.00 | 17.83 | 0.058 0.002 | 233 29 | - |
| To Kalon Remote (TKN5) | 2/1/26 | 70.8 0.9 | 1525 | 35.8 1.8 | 2317 | - | - | - | - | - | - | - | - | - | - | - | - |
| Yountville (Ranch 67) | 2/1/26 | 70.7 2.2 | 1525 | 35.6 1.9 | 0646 | 41.0 0.4 | 98 0 | 34 4 | 1.4 | 7.2 0.2 | 0201 | W | 278 | 0.00 | 15.30 | 0.061 0.005 | 307 28 | - |
| Stags Leap Dist (Silverado Vineyards) | 2/1/26 | 72.4 4.1 | 1520 | 36.4 1.7 | 0623 | 41.5 0.0 | 98 1 | 34 4 | 0.8 | 5.3 1.2 | 0338 | NE | 51 | 0.00 | 18.56 | 0.061 0.004 | 255 17 | - |
| Borreo (Soda Canyon) | 2/1/26 | 68.0 0.6 | 1540 | 39.6 1.6 | 0632 | 42.1 1.5 | 96 3 | 41 6 | 1.7 | 5.4 6.7 | 1212 | SE | 139 | 0.00 | 18.92 | 0.063 0.004 | 269 24 | - |
| Wappo Hill Floor | 2/1/26 | 73.0 3.0 | 1516 | 34.8 2.9 | 0711 | 42.2 0.2 | 100 0 | 37 3 | 1.0 | 5.8 1.5 | 0336 | NE | 45 | 0.00 | 18.31 | 0.059 0.004 | 252 23 | - |
| Stags Leap Dist (Chimney Rock) | 2/1/26 | 74.3 3.7 | 1652 | 35.4 2.5 | 0653 | - | - | - | 1.1 | 7.0 0.0 | 0109 | NNE | 17 | 0.00 | 16.36 | 0.054 0.003 | 226 24 | 0 0 |
| Yountville-South (Ranch 87) | 2/1/26 | 70.5 1.5 | 1629 | 35.1 1.2 | 0618 | 42.7 0.1 | 100 0 | 40 5 | 0.8 | 6.1 0.1 | 0938 | NW | 316 | 0.00 | 18.37 | 0.056 0.004 | 231 20 | - |
| Yountville-SE (Ranch 85) | 2/1/26 | 70.8 1.4 | 1516 | 36.5 2.0 | 0725 | 42.6 0.1 | 100 0 | 40 1 | 0.8 | 5.6 0.4 | 0338 | ESE | 108 | 0.00 | 17.30 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 2/1/26 | 71.9 1.9 | 1529 | 36.1 1.8 | 0648 | 42.4 0.8 | 97 0 | 39 1 | 0.8 | 4.4 2.0 | 1437 | E | 80 | 0.00 | 16.19 | 0.057 0.006 | 241 27 | - |
| Napa-NW (Ranch 54) | 2/1/26 | 71.1 2.7 | 1535 | 37.9 2.1 | 0709 | 43.6 1.2 | 100 0 | 42 1 | 1.2 | 6.5 0.7 | 0237 | NW | 308 | 0.00 | 17.35 | - | 0 0 | 0 0 |
| Napa-North (Ranch 29) | 2/1/26 | 73.0 3.5 | 1628 | 36.8 1.8 | 0707 | 44.0 1.5 | 100 0 | 43 2 | 0.7 | 6.1 1.4 | 1256 | SSW | 198 | 0.00 | 15.88 | 0.041 0.005 | 151 22 | - |
| Max | 74.3 | - | 47.3 | - | 44.0 | 100 | 43 | 2.5 | 12.7 | - | - | 0.00 | 22.79 | 0.064 | 307 | - | |
| Avg | - | - | - | - | 41.6 | - | - | 1.3 | - | - | - | - | - | - | - | - | |
| Min | 66.6 | - | 34.8 | - | 39.3 | 83 | 16 | 0.7 | 4.4 | - | - | 0.00 | 15.30 | 0.041 | 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 | 2/1/26 | 65.4 0.2 | 1257 | 52.2 1.4 | 0433 | 37.7 1.2 | 62 1 | 34 3 | 1.1 | 4.7 2.5 | 0936 | N | 0 | 0.00 | 23.09 | 0.083 0.007 | 401 30 | 0 0 |
| Mount George (Napa East) | 2/1/26 | 76.5 4.4 | 1524 | 41.6 2.6 | 0546 | 48.3 3.0 | 100 0 | 45 1 | 0.9 | 6.0 0.5 | 0235 | W | 260 | 0.00 | 7.26 | 0.071 0.011 | 283 33 | - |
| Napa-East (Palmaz 300') | 2/1/26 | 69.7 0.4 | 1628 | 39.7 0.0 | 0640 | 43.4 0.5 | 100 0 | 40 1 | 1.2 | 8.1 4.4 | 0237 | W | 277 | 0.00 | 14.12 | 0.061 0.007 | 248 30 | - |
| Napa-East (Palmaz 1200') | 2/1/26 | 65.2 0.7 | 1544 | 40.8 2.8 | 2333 | 41.3 2.9 | 92 4 | 36 5 | 2.8 | 7.7 5.6 | 0211 | ENE | 71 | - | - | 0.065 0.011 | 263 28 | - |
| Napa-East (Palmaz 1400') | 2/1/26 | 66.5 2.6 | 1133 | 40.7 3.1 | 0001 | 41.2 2.1 | 95 5 | 41 7 | 2.3 | 8.6 4.2 | 1806 | NW | 317 | 0.00 | 19.62 | 0.069 0.012 | 273 29 | - |
| 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) | 2/1/26 | 70.0 0.3 | 1538 | 43.2 1.2 | 0453 | - | - | - | 1.1 | 9.9 0.9 | 0202 | ENE | 66 | 0.00 | 15.67 | 0.064 0.008 | 263 30 | 0 0 |
| Napa-West Lower (Truchard) | 2/1/26 | 71.9 0.5 | 1537 | 34.8 2.4 | 0644 | 42.0 0.6 | 100 0 | 45 4 | - | - | - | - | - | - | - | - | 0 0 |
| Napa-South (Toyon Farms) | 2/1/26 | 69.6 1.6 | 1534 | 42.1 2.9 | 0742 | 47.1 1.0 | 100 0 | 53 0 | 1.4 | 6.1 0.7 | 0330 | NE | 49 | 0.00 | 9.91 | 0.036 0.005 | 137 15 | 0 0 |
| Toyon Remote 1 | 2/1/26 | 68.0 0.3 | 1518 | 36.9 1.7 | 0705 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 2/1/26 | 68.7 0.5 | 1511 | 36.6 2.4 | 0623 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 2/1/26 | 70.0 1.2 | 1520 | 36.4 2.2 | 0647 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 2/1/26 | 69.5 1.6 | 1451 | 39.0 1.4 | 0653 | 44.6 0.9 | 97 1 | 44 2 | 2.0 | 6.9 0.4 | 1436 | SW | 236 | 0.00 | 14.92 | 0.064 0.008 | 270 28 | - |
| Carneros (Saintsbury) | 2/1/26 | 67.8 2.0 | 1505 | 38.1 2.5 | 0634 | 44.4 1.2 | 100 0 | 51 8 | 1.5 | 6.0 2.7 | 1314 | SSE | 148 | 0.00 | 1.77 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 2/1/26 | 69.5 1.2 | 1530 | 38.6 1.1 | 0631 | 43.2 1.3 | - | - | 2.6 | 9.1 2.6 | 0209 | E | 99 | 0.00 | 14.30 | 0.066 0.007 | 267 29 | - |
| Suscol Mtn (Ranch 93) | 2/1/26 | 64.6 1.8 | 1535 | 50.7 1.1 | 0018 | 42.6 4.0 | 75 2 | 41 3 | 2.6 | 14.0 8.2 | 0213 | ESE | 114 | 0.00 | 9.84 | - | - | - |
| Suscol Upper (Ranch 92) | 2/1/26 | 66.6 2.8 | 1706 | 49.6 0.0 | 0257 | 43.5 3.4 | 76 5 | 43 6 | 0.5 | 11.0 2.4 | 0211 | ENE | 62 | 0.00 | 13.75 | - | - | 0 0 |
| Stanly (Ranch 45) | 2/1/26 | 70.4 0.8 | 1510 | 38.3 2.6 | 0547 | 43.4 1.2 | 96 3 | 43 3 | 2.5 | 7.7 0.2 | 0240 | NW | 311 | 0.00 | 15.43 | 0.073 0.006 | 306 38 | 0 0 |
| Carneros Upper (Ranch 81) | 2/1/26 | 68.3 0.4 | 1535 | 45.5 0.4 | 0244 | 44.3 0.1 | - | - | 3.1 | 11.5 1.7 | 0240 | WNW | 282 | - | - | - | - | 0 |
| Carneros (Mitsuko) | 2/1/26 | 68.7 0.3 | 1452 | 34.8 1.3 | 0635 | - | - | - | - | - | - | - | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 2/1/26 | 69.6 2.7 | 1451 | 39.7 3.0 | 0708 | 43.6 25.8 | 100 0 | 0 0 | 1.0 | 8.2 1.2 | 0239 | WNW | 285 | 0.00 | 12.89 | 0.044 0.002 | 175 2 | 0 |
| Carneros (Milton Rd) | 2/1/26 | 70.0 2.6 | 1457 | 35.8 0.9 | 0647 | 43.0 0.5 | 96 0 | 47 2 | - | - | - | - | 0.00 | 5.74 | - | - | - |
| Max | 76.5 | - | 52.2 | - | 48.3 | 100 | 53 | 3.1 | 14.0 | - | - | 0.00 | 23.09 | 0.083 | 401 | - | |
| Avg | - | - | - | - | 43.3 | - | - | 1.8 | - | - | - | - | - | - | - | - | |
| Min | 64.6 | - | 34.8 | - | 37.7 | 62 | 0 | 0.5 | 4.7 | - | - | 0.00 | 1.77 | 0.036 | 137 | - |