| 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 | 1/23/26 | 64.3 2.4 | 1448 | 38.0 3.0 | 0254 | - | - | - | - | - | - | - | 0.00 | 34.57 | - | - | - |
| Pope Valley (Weeks Lake) | 1/23/26 | 66.2 4.3 | 1519 | 31.5 2.4 | 0216 | 37.6 2.7 | 100 0 | 41 12 | 0.7 | 6.6 3.7 | 1340 | SSE | 148 | 0.00 | 16.94 | 0.056 0.008 | 250 10 | 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 | 1/23/26 | 66.2 3.3 | 1504 | 34.5 5.6 | 0518 | 42.5 2.1 | 100 1 | 45 10 | 1.8 | 11.0 0.0 | 1351 | ENE | 71 | 0.00 | 14.79 | 0.063 0.010 | 275 2 | - |
| Dollarhide 1AS Remote | 1/23/26 | 69.2 1.6 | 1502 | 31.9 2.7 | 2254 | 38.6 3.4 | 96 0 | 40 6 | 1.0 | 8.9 2.7 | 1600 | S | 177 | - | - | - | - | - |
| Dollarhide 17B Remote | 1/23/26 | 68.0 3.6 | 1433 | 33.1 6.0 | 0507 | 41.2 2.6 | 100 0 | 43 8 | - | - | - | - | - | - | - | - | - |
| Dollarhide 18A Remote | 1/23/26 | 71.3 0.2 | 1518 | 30.4 2.8 | 2358 | 38.4 3.3 | 100 0 | 38 1 | - | - | - | - | - | - | - | - | - |
| Angwin | 1/23/26 | 59.6 3.1 | 1428 | 44.4 5.1 | 0719 | 37.8 3.6 | 84 11 | 42 18 | 5.4 | 21.4 11.0 | 2154 | NNW | 332 | 0.00 | 32.03 | 0.032 0.005 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 1/23/26 | 61.6 4.5 | 1350 | 34.2 3.1 | 0720 | - | - | - | 2.2 | 13.9 3.6 | 2201 | NNW | 329 | - | - | - | - | - |
| Deer Park | 1/23/26 | 51.4 15.4 | 1349 | 41.9 2.8 | 0629 | 44.5 0.5 | 100 10 | 83 41 | 2.0 | 7.2 3.7 | 1500 | S | 178 | 0.00 | 18.50 | 0.020 0.039 | 98 95 | - |
| Lower Chiles Valley (Brown) | 1/23/26 | 55.2 13.2 | 1204 | 31.0 4.6 | 0555 | 40.3 0.1 | 100 0 | 71 45 | 2.4 | 14.2 5.0 | 1303 | S | 183 | 0.01 | 14.39 | 0.045 0.024 | 241 22 | 0 0 |
| Moss Creek Vineyard/Reservior | 1/22/26 | 70.6 8.1 | 1249 | 38.8 0.8 | 0737 | 42.2 0.2 | 96 2 | 31 15 | - | - | - | - | 0.00 | 19.00 | - | - | - |
| Max | 71.3 | - | 44.4 | - | 44.5 | 100 | 83 | 5.4 | 21.4 | - | - | 0.01 | 34.57 | 0.063 | 275 | - | |
| Avg | - | - | - | - | 40.1 | - | - | 2.2 | - | - | - | - | - | - | - | - | |
| Min | 51.4 | - | 30.4 | - | 37.6 | 84 | 38 | 0.7 | 6.6 | - | - | 0.00 | 14.39 | 0.020 | 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 | 1/23/26 | 58.4 11.6 | 1352 | 38.5 1.8 | 0344 | 44.8 0.9 | 100 0 | 74 28 | - | - | - | - | 0.00 | 22.65 | - | - | - |
| Fotsch (Maple Lane) | 1/23/26 | 54.2 13.0 | 1409 | 35.1 3.2 | 0209 | 43.5 0.7 | 98 1 | 75 34 | 2.3 | 11.8 0.1 | 1955 | W | 279 | 0.00 | 20.61 | - | - | - |
| Diamond Mtn (Schramsberg) | 1/23/26 | 52.4 12.2 | 1355 | 41.3 4.9 | 0429 | 44.2 0.0 | 100 12 | 67 23 | - | - | - | - | 0.00 | 20.76 | - | - | - |
| Diamond Mtn (McEachran) | 1/23/26 | 52.2 12.0 | 1433 | 41.7 2.0 | 2355 | 44.4 0.8 | 100 6 | 82 32 | - | - | - | - | - | - | - | - | - |
| St. Helena-North | 1/23/26 | 51.0 15.6 | 1417 | 37.5 3.1 | 0307 | 44.3 0.2 | 100 0 | 82 38 | 1.2 | 8.6 1.3 | 1517 | SE | 146 | 0.00 | 20.73 | 0.019 0.037 | 82 116 | - |
| St. Helena (NVV Office) | 1/23/26 | 50.0 17.5 | 1504 | 39.5 2.0 | 0148 | - | - | - | 0.8 | 5.2 2.1 | 0927 | NW | 326 | 0.00 | 18.18 | - | - | - |
| Tiara Fria (East St. Helena) | 1/23/26 | 49.9 15.7 | 1609 | 36.6 3.2 | 0318 | 44.0 0.4 | 98 0 | 90 43 | 1.2 | 5.9 2.6 | 2132 | NW | 304 | 0.00 | 16.72 | - | - | - |
| Rutherford Hill Estate | 1/23/26 | 48.8 19.1 | 1648 | 42.4 2.4 | 0511 | 45.4 0.7 | 100 8 | 89 48 | 0.9 | 5.0 7.9 | 1409 | S | 179 | 0.00 | 17.00 | 0.016 0.042 | 69 165 | 0 0 |
| Rutherford-North (Mee Ln) | 1/23/26 | 43.3 23.0 | 1708 | 31.5 4.4 | 0248 | 39.0 3.6 | 100 0 | 93 45 | 1.1 | 5.3 6.8 | 1355 | SE | 128 | 0.01 | 15.32 | 0.013 0.049 | 63 172 | 0 0 |
| Rutherford (STS) | 1/23/26 | 49.8 17.8 | 1623 | 35.4 2.2 | 0222 | 41.3 3.2 | 90 1 | 85 31 | 1.2 | 5.0 5.4 | 2056 | W | 262 | 0.00 | 16.01 | 0.018 0.048 | 68 199 | - |
| Oakville-NE (Ranch 88) | 1/23/26 | 50.3 16.0 | 1547 | 35.2 0.9 | 0122 | 43.6 0.9 | 97 1 | 89 43 | 0.0 | 2.5 8.9 | 0207 | N | 9 | 0.00 | 16.02 | 0.016 0.052 | 67 198 | 0 0 |
| OV561-East | 1/23/26 | 51.5 17.1 | 1502 | 36.2 2.7 | 0226 | - | - | - | - | - | - | - | - | - | - | - | - |
| Oakville | 1/23/26 | 50.7 14.4 | 1608 | 36.0 1.9 | 0214 | 44.1 0.3 | 98 1 | 88 40 | 1.5 | 6.4 7.1 | 1456 | SE | 134 | 0.00 | 16.58 | 0.017 0.050 | 72 181 | - |
| OV518-West | 1/23/26 | 50.9 14.9 | 1600 | 36.1 2.7 | 0246 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon Remote (TKKE) | 1/23/26 | 51.3 15.2 | 1603 | 35.2 2.0 | 0144 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon | 1/23/26 | 50.7 14.8 | 1547 | 37.0 1.9 | 0235 | 45.0 0.2 | 100 1 | 92 41 | 1.2 | 5.1 7.5 | 0902 | N | 0 | 0.00 | 17.71 | 0.013 0.050 | 54 187 | - |
| To Kalon Remote (TKN5) | 1/23/26 | 51.6 15.7 | 1552 | 36.3 1.4 | 0121 | - | - | - | - | - | - | - | - | - | - | - | - |
| Yountville (Ranch 67) | 1/23/26 | 50.4 14.6 | 1506 | 35.8 1.6 | 0123 | 43.9 1.0 | 99 2 | 86 41 | 1.3 | 7.8 4.3 | 1243 | ESE | 117 | 0.00 | 15.15 | 0.021 0.048 | 141 167 | - |
| Stags Leap Dist (Silverado Vineyards) | 1/23/26 | 50.4 14.5 | 1616 | 35.6 2.4 | 0204 | 43.6 0.9 | 100 4 | 86 40 | 0.8 | 9.1 3.8 | 1251 | ENE | 71 | 0.00 | 18.44 | 0.017 0.055 | 71 192 | - |
| Borreo (Soda Canyon) | 1/23/26 | 48.7 15.8 | 1554 | 37.4 2.1 | 0241 | 43.8 2.1 | 98 2 | 90 52 | 1.2 | 5.3 2.9 | 1238 | SSE | 156 | 0.00 | 18.80 | 0.019 0.046 | 89 189 | - |
| Wappo Hill Floor | 1/23/26 | 51.8 14.7 | 1453 | 35.0 1.2 | 0055 | 44.5 0.1 | 100 0 | 84 38 | 1.4 | 6.8 2.5 | 1319 | E | 85 | 0.00 | 18.22 | 0.017 0.052 | 78 192 | - |
| Stags Leap Dist (Chimney Rock) | 1/23/26 | 52.1 15.7 | 1537 | 35.8 2.1 | 0039 | - | - | - | 1.3 | 6.6 5.7 | 1302 | E | 96 | 0.00 | 16.24 | 0.029 0.032 | 69 164 | 0 0 |
| Yountville-South (Ranch 87) | 1/23/26 | 51.7 14.4 | 1550 | 35.7 2.4 | 0201 | 45.3 0.4 | 100 0 | 88 39 | 1.2 | 6.3 3.8 | 1308 | ESE | 123 | 0.00 | 18.26 | 0.017 0.050 | 72 187 | - |
| Yountville-SE (Ranch 85) | 1/23/26 | 51.5 14.4 | 1510 | 37.7 1.4 | 0050 | 45.3 1.0 | 100 0 | 88 41 | 1.3 | 7.3 2.0 | 1247 | SSE | 152 | 0.00 | 17.18 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 1/23/26 | 51.6 14.3 | 1530 | 37.7 2.2 | 0037 | 45.0 1.1 | 98 2 | 85 40 | 1.3 | 6.1 2.8 | 0909 | NW | 320 | 0.00 | 16.09 | 0.017 0.047 | 65 186 | - |
| Napa-NW (Ranch 54) | 1/23/26 | 52.1 12.3 | 1544 | 37.7 2.9 | 0152 | 45.6 0.6 | 100 0 | 83 33 | 1.2 | 6.6 3.9 | 1311 | SE | 140 | 0.00 | 17.24 | - | 0 0 | 0 0 |
| Napa-North (Ranch 29) | 1/23/26 | 51.8 14.6 | 1510 | 37.5 2.1 | 0131 | 46.0 1.5 | 100 0 | 86 42 | 0.6 | 5.7 3.2 | 1351 | SW | 225 | 0.00 | 15.78 | 0.012 0.033 | 45 113 | - |
| Max | 58.4 | - | 42.4 | - | 46.0 | 100 | 93 | 2.3 | 11.8 | - | - | 0.01 | 22.65 | 0.029 | 141 | - | |
| Avg | - | - | - | - | 44.1 | - | - | 1.1 | - | - | - | - | - | - | - | - | |
| Min | 43.3 | - | 31.5 | - | 39.0 | 90 | 67 | 0.0 | 2.5 | - | - | 0.00 | 15.15 | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mt. Veeder | 1/23/26 | 55.1 8.2 | 1133 | 42.0 6.7 | 2206 | 43.9 3.8 | 100 21 | 56 25 | 0.9 | 7.3 2.5 | 2252 | N | 353 | 0.00 | 22.87 | 0.056 0.008 | 288 26 | 0 0 |
| Mount George (Napa East) | 1/23/26 | 49.8 16.9 | 1328 | 37.2 0.7 | 0222 | 44.4 0.2 | 98 0 | 88 47 | 1.1 | 5.8 2.4 | 0647 | NE | 51 | 0.00 | 7.16 | 0.017 0.055 | 71 229 | - |
| Napa-East (Palmaz 300') | 1/23/26 | 49.9 17.2 | 1601 | 40.5 0.5 | 0123 | 45.2 1.5 | 100 0 | 88 48 | 1.4 | 7.3 1.5 | 0653 | NE | 49 | 0.00 | 14.03 | 0.014 0.046 | 55 189 | - |
| Napa-East (Palmaz 1200') | 1/23/26 | 47.3 15.0 | 1548 | 37.5 4.1 | 2133 | 36.1 4.7 | 90 10 | 75 35 | 1.7 | 6.2 3.3 | 2253 | ENE | 67 | - | - | 0.024 0.038 | 100 157 | - |
| Napa-East (Palmaz 1400') | 1/23/26 | 52.8 10.6 | 1140 | 35.9 5.0 | 0631 | 42.5 0.7 | 100 0 | 82 46 | 1.3 | 7.3 2.9 | 2324 | NW | 313 | 0.00 | 19.50 | 0.030 0.037 | 166 102 | - |
| 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) | 1/23/26 | 50.5 14.8 | 1544 | 42.4 1.0 | 0131 | - | - | - | 0.7 | 8.6 4.9 | 0831 | N | 10 | 0.00 | 15.55 | 0.029 0.042 | 66 208 | 0 0 |
| Napa-West Lower (Truchard) | 1/23/26 | 51.2 14.6 | 1557 | 34.2 0.5 | 0036 | 44.0 1.5 | 100 0 | 87 37 | - | - | - | - | - | - | - | - | 0 0 |
| Napa-South (Toyon Farms) | 1/23/26 | 52.7 14.1 | 1554 | 43.6 1.2 | 0024 | 47.6 0.5 | 100 0 | 89 35 | 0.0 | 3.4 6.0 | 0953 | NE | 54 | 0.00 | 9.78 | 0.008 0.029 | 37 104 | 0 0 |
| Toyon Remote 1 | 1/23/26 | 52.6 12.2 | 1532 | 37.6 0.7 | 0038 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 1/23/26 | 52.1 11.9 | 1556 | 35.8 0.1 | 0005 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 1/23/26 | 53.1 12.5 | 1537 | 37.3 0.6 | 0019 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 1/23/26 | 52.2 13.7 | 1621 | 38.6 1.7 | 0032 | 45.9 1.3 | 98 1 | 84 38 | 1.8 | 7.6 1.8 | 0859 | NNE | 19 | 0.00 | 14.80 | 0.017 0.049 | 71 207 | - |
| Carneros (Saintsbury) | 1/23/26 | 50.9 13.3 | 1535 | 39.4 0.6 | 0011 | 44.3 0.3 | 100 0 | 86 36 | 1.4 | 6.4 3.6 | 1502 | WSW | 241 | 0.00 | 1.65 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 1/23/26 | 50.8 14.4 | 1324 | 39.8 0.4 | 0048 | 45.8 1.9 | - | - | 2.1 | 6.4 5.8 | 1446 | WNW | 285 | 0.00 | 14.19 | 0.016 0.049 | 59 204 | - |
| Suscol Mtn (Ranch 93) | 1/23/26 | 50.1 13.7 | 0001 | 42.3 4.8 | 2359 | 45.5 3.6 | 100 15 | 84 43 | 2.6 | 9.9 3.4 | 1419 | NW | 319 | 0.00 | 9.83 | - | - | - |
| Suscol Upper (Ranch 92) | 1/23/26 | 50.0 15.9 | 0001 | 43.0 4.1 | 2359 | 46.4 3.7 | 100 13 | 84 44 | 0.3 | 7.5 4.1 | 0145 | SE | 130 | 0.00 | 13.66 | - | - | 0 0 |
| Stanly (Ranch 45) | 1/23/26 | 51.0 14.2 | 1559 | 38.8 0.5 | 0029 | 43.6 0.2 | 100 4 | 84 40 | 2.4 | 8.6 6.0 | 0418 | NNE | 17 | 0.00 | 15.30 | 0.016 0.060 | 66 243 | 0 0 |
| Carneros Upper (Ranch 81) | 1/23/26 | 51.3 13.0 | 1606 | 43.2 1.6 | 0239 | -4.2 48.4 | - | - | 2.7 | 9.3 6.9 | 2009 | WSW | 256 | - | - | - | - | - |
| Carneros (Mitsuko) | 1/23/26 | 52.1 12.8 | 1548 | 38.6 2.1 | 0001 | - | - | - | - | - | - | - | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 1/23/26 | 51.8 14.0 | 1545 | 40.9 0.0 | 0144 | 1.2 44.4 | 100 0 | 0 47 | 1.2 | 7.7 1.5 | 1547 | NW | 307 | 0.00 | 12.79 | 0.024 0.025 | 48 132 | - |
| Carneros (Milton Rd) | 1/23/26 | 52.3 13.0 | 1539 | 39.4 1.9 | 0001 | 45.9 1.9 | 95 0 | 84 37 | - | - | - | - | 0.00 | 5.74 | - | - | - |
| Max | 55.1 | - | 43.6 | - | 47.6 | 100 | 89 | 2.7 | 9.9 | - | - | 0.00 | 22.87 | 0.056 | 288 | - | |
| Avg | - | - | - | - | 38.6 | - | - | 1.4 | - | - | - | - | - | - | - | - | |
| Min | 47.3 | - | 34.2 | - | -4.2 | 90 | 0 | 0.0 | 3.4 | - | - | 0.00 | 1.65 | 0.008 | 37 | - |