| 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 | 1/17/26 | 69.0 5.0 | 1507 | 41.2 2.5 | 0802 | - | - | - | - | - | - | - | 0.00 | 34.57 | - | - | - |
| Pope Valley (Weeks Lake) | 1/17/26 | 74.6 3.7 | 1336 | 24.8 1.4 | 0712 | 32.4 1.3 | 100 0 | 21 10 | 0.6 | 5.0 6.1 | 1401 | SSW | 201 | 0.00 | 16.94 | 0.057 0.017 | 241 25 | 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 | 1/17/26 | 71.4 5.3 | 1402 | 32.3 1.8 | 0753 | 36.8 0.9 | 100 1 | 25 5 | 2.0 | 10.4 1.5 | 1253 | E | 79 | 0.00 | 14.79 | 0.077 0.014 | 256 28 | - |
| Dollarhide 1AS Remote | 1/17/26 | 73.7 4.3 | 1520 | 24.5 0.5 | 0652 | 33.3 0.2 | 96 0 | 22 1 | 0.7 | 7.7 1.0 | 1254 | ENE | 69 | - | - | - | - | - |
| Dollarhide 17B Remote | 1/17/26 | 73.5 7.9 | 1404 | 27.7 1.8 | 0715 | 36.2 0.4 | 100 0 | 24 8 | - | - | - | - | - | - | - | - | - |
| Dollarhide 18A Remote | 1/17/26 | 72.2 4.9 | 1357 | 23.6 0.6 | 0647 | 32.8 0.3 | 100 0 | 22 2 | - | - | - | - | - | - | - | - | - |
| Angwin | 1/17/26 | 63.2 4.3 | 1511 | 51.8 4.2 | 0723 | 23.5 3.7 | 40 11 | 18 3 | 9.3 | 18.9 2.5 | 1011 | N | 6 | 0.00 | 32.03 | 0.111 0.019 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 1/17/26 | 66.0 5.6 | 1355 | 43.1 1.5 | 1858 | - | - | - | 5.0 | 15.5 0.2 | 0607 | N | 10 | - | - | - | - | - |
| Deer Park | 1/17/26 | 74.8 5.4 | 1503 | 50.0 1.5 | 0001 | 31.2 0.8 | 67 5 | 16 5 | 2.4 | 13.3 2.6 | 1317 | NNE | 20 | 0.00 | 18.50 | 0.073 0.017 | 182 19 | - |
| Lower Chiles Valley (Brown) | 1/17/26 | 72.8 4.2 | 1431 | 32.9 0.8 | 0731 | 32.6 1.3 | 100 0 | 18 6 | 1.7 | 11.5 2.8 | 1203 | ENE | 74 | 0.00 | 14.38 | 0.083 0.012 | 251 25 | 0 0 |
| Moss Creek Vineyard/Reservior | 1/17/26 | 71.9 5.8 | 1310 | 34.7 3.8 | 0733 | 38.6 2.7 | 100 0 | 23 11 | - | - | - | - | 0.00 | 19.00 | - | - | - |
| Max | 74.8 | - | 51.8 | - | 38.6 | 100 | 25 | 9.3 | 18.9 | - | - | 0.00 | 34.57 | 0.111 | 256 | - | |
| Avg | - | - | - | - | 33.0 | - | - | 3.1 | - | - | - | - | - | - | - | - | |
| Min | 63.2 | - | 23.6 | - | 23.5 | 40 | 16 | 0.6 | 5.0 | - | - | 0.00 | 14.38 | 0.057 | 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 | 1/17/26 | 75.3 6.0 | 1304 | 33.7 4.3 | 0634 | 40.5 0.5 | 100 2 | 23 8 | - | - | - | - | 0.01 | 22.64 | - | - | - |
| Fotsch (Maple Lane) | 1/17/26 | 75.1 5.5 | 1459 | 30.9 3.5 | 0709 | 37.3 0.5 | 98 1 | 17 7 | 1.9 | 9.3 4.5 | 1220 | SE | 145 | 0.00 | 20.61 | - | - | - |
| Diamond Mtn (Schramsberg) | 1/17/26 | 69.4 8.5 | 1317 | 49.3 4.0 | 2359 | 28.5 0.9 | 66 1 | 16 5 | - | - | - | - | 0.00 | 20.76 | - | - | - |
| Diamond Mtn (McEachran) | 1/17/26 | 71.8 6.8 | 1338 | 45.1 3.1 | 0541 | 36.2 4.7 | 75 7 | 20 10 | - | - | - | - | - | - | - | - | - |
| St. Helena-North | 1/17/26 | 73.4 8.5 | 1459 | 33.5 3.5 | 0643 | 38.2 1.9 | 99 7 | 20 12 | 2.2 | 11.8 0.4 | 1235 | SSE | 158 | 0.00 | 20.73 | 0.059 0.010 | 188 25 | - |
| St. Helena (NVV Office) | 1/17/26 | 75.8 5.8 | 1455 | 34.4 1.7 | 0600 | - | - | - | 1.0 | 6.8 2.8 | 1527 | ENE | 74 | 0.00 | 18.18 | - | - | - |
| Tiara Fria (East St. Helena) | 1/17/26 | 74.2 5.5 | 1410 | 33.3 3.3 | 0438 | 39.6 0.8 | 97 1 | 19 7 | 1.6 | 10.2 0.7 | 0626 | NNE | 25 | 0.00 | 16.72 | - | - | - |
| Rutherford Hill Estate | 1/17/26 | 77.5 3.9 | 1410 | 44.2 4.1 | 0151 | 38.8 2.9 | 84 0 | 17 4 | 1.2 | 13.2 0.4 | 1346 | E | 81 | 0.00 | 17.00 | 0.054 0.017 | 208 28 | 0 0 |
| Rutherford-North (Mee Ln) | 1/17/26 | 75.2 4.3 | 1456 | 27.8 2.5 | 0700 | 37.8 0.3 | 100 0 | 21 6 | 1.5 | 9.0 4.6 | 1501 | ESE | 118 | 0.00 | 15.31 | 0.054 0.016 | 210 28 | 0 0 |
| Rutherford (STS) | 1/17/26 | 75.8 5.2 | 1408 | 30.6 0.9 | 0708 | 39.9 0.3 | 92 1 | 26 7 | 1.2 | 6.8 3.4 | 1334 | WNW | 292 | 0.00 | 0.00 | 0.062 0.019 | 254 33 | - |
| Oakville-NE (Ranch 88) | 1/17/26 | 75.6 2.9 | 1415 | 29.0 0.3 | 0737 | 37.0 1.0 | 97 1 | 19 7 | 0.0 | 4.8 1.2 | 1455 | SSE | 154 | 0.00 | 16.02 | 0.053 0.009 | 254 28 | 0 0 |
| OV561-East | 1/17/26 | 76.4 1.7 | 1415 | 31.4 0.4 | 0747 | - | - | - | - | - | - | - | - | - | - | - | - |
| Oakville | 1/17/26 | 74.2 3.5 | 1421 | 30.6 0.1 | 0734 | 39.1 0.1 | 98 1 | 20 6 | 1.6 | 12.2 2.1 | 1429 | SE | 132 | 0.00 | 16.58 | 0.060 0.016 | 242 26 | - |
| OV518-West | 1/17/26 | 73.9 2.8 | 1326 | 31.1 0.4 | 0717 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon Remote (TKKE) | 1/17/26 | 74.8 5.0 | 1409 | 30.5 0.6 | 0631 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon | 1/17/26 | 75.4 6.5 | 1409 | 31.5 0.5 | 0716 | 39.6 0.1 | 100 1 | 21 6 | 1.3 | 8.6 4.6 | 1456 | S | 176 | 0.00 | 17.71 | 0.059 0.014 | 228 28 | - |
| To Kalon Remote (TKN5) | 1/17/26 | 74.7 3.8 | 1409 | 30.4 0.5 | 0748 | - | - | - | - | - | - | - | - | - | - | - | - |
| Yountville (Ranch 67) | 1/17/26 | 73.6 1.5 | 1330 | 30.7 0.2 | 0659 | 39.1 0.2 | 98 0 | 23 11 | 1.3 | 10.4 3.5 | 1442 | S | 170 | 0.00 | 15.15 | 0.060 0.014 | 322 24 | - |
| Stags Leap Dist (Silverado Vineyards) | 1/17/26 | 72.0 1.1 | 1345 | 30.8 0.2 | 0810 | 39.5 0.2 | 100 0 | 28 6 | 0.8 | 10.6 5.0 | 1417 | ESE | 113 | 0.00 | 18.44 | 0.059 0.016 | 245 21 | - |
| Borreo (Soda Canyon) | 1/17/26 | 72.1 0.8 | 1240 | 38.3 2.1 | 0755 | 40.1 0.9 | 92 2 | 19 5 | 1.7 | 10.0 4.2 | 1234 | E | 97 | 0.00 | 18.80 | 0.062 0.013 | 251 29 | - |
| Wappo Hill Floor | 1/17/26 | 71.5 1.1 | 1342 | 29.4 0.7 | 0650 | 40.4 0.6 | 100 0 | 39 3 | 1.2 | 8.9 1.1 | 1402 | SSE | 158 | 0.00 | 18.22 | 0.056 0.015 | 244 31 | - |
| Stags Leap Dist (Chimney Rock) | 1/17/26 | 72.3 0.5 | 1336 | 30.0 0.9 | 0725 | - | - | - | 1.3 | 9.2 1.8 | 1400 | SE | 133 | 0.00 | 16.24 | 0.049 0.012 | 204 30 | 0 0 |
| Yountville-South (Ranch 87) | 1/17/26 | 71.3 0.2 | 1342 | 30.1 0.4 | 0731 | 41.2 0.5 | 100 0 | 39 0 | 1.0 | 8.3 2.6 | 1402 | SSE | 166 | 0.00 | 18.26 | 0.054 0.014 | 227 37 | - |
| Yountville-SE (Ranch 85) | 1/17/26 | 72.0 1.4 | 1314 | 31.2 0.2 | 0652 | 40.8 0.4 | 100 0 | 38 0 | 1.0 | 8.8 2.7 | 1403 | S | 185 | 0.00 | 17.18 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 1/17/26 | 71.6 1.7 | 1330 | 31.5 0.1 | 0719 | 40.2 0.4 | 97 0 | 32 4 | 0.9 | 8.5 1.3 | 1348 | SSE | 154 | 0.00 | 16.09 | 0.053 0.013 | 220 31 | - |
| Napa-NW (Ranch 54) | 1/17/26 | 69.3 1.4 | 1318 | 32.0 0.2 | 0741 | 41.0 0.0 | 100 0 | 37 6 | 0.9 | 9.2 2.1 | 1415 | SSE | 150 | 0.00 | 17.24 | - | 0 0 | 0 0 |
| Napa-North (Ranch 29) | 1/17/26 | 69.0 1.4 | 1306 | 31.4 1.5 | 0729 | 41.6 0.4 | 100 0 | 37 6 | 1.0 | 10.5 0.0 | 1320 | S | 186 | 0.00 | 15.78 | 0.038 0.007 | 135 16 | - |
| Max | 77.5 | - | 49.3 | - | 41.6 | 100 | 39 | 2.2 | 13.2 | - | - | 0.01 | 22.64 | 0.062 | 322 | - | |
| Avg | - | - | - | - | 38.9 | - | - | 1.2 | - | - | - | - | - | - | - | - | |
| Min | 69.0 | - | 27.8 | - | 28.5 | 66 | 16 | 0.0 | 4.8 | - | - | 0.00 | 0.00 | 0.038 | 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 | 1/17/26 | 66.9 3.4 | 1308 | 56.6 3.4 | 0725 | 25.5 0.3 | 35 18 | 19 4 | 1.8 | 11.4 1.7 | 1123 | NNW | 344 | 0.00 | 22.87 | 0.072 0.004 | 169 0 | 0 0 |
| Mount George (Napa East) | 1/17/26 | 75.1 6.8 | 1132 | 39.1 1.0 | 0706 | 45.3 1.5 | 100 0 | 36 7 | 1.0 | 6.5 0.1 | 1328 | SW | 227 | 0.00 | 7.16 | 0.081 0.009 | 336 56 | - |
| Napa-East (Palmaz 300') | 1/17/26 | 71.7 1.0 | 1249 | 36.3 2.1 | 0644 | 43.0 0.6 | 100 0 | 34 5 | 1.3 | 7.0 0.9 | 1324 | SW | 227 | 0.00 | 14.03 | 0.052 0.009 | 213 24 | - |
| Napa-East (Palmaz 1200') | 1/17/26 | 70.2 2.8 | 1358 | 42.1 1.7 | 0253 | 33.6 1.9 | 75 9 | 24 7 | 3.4 | 12.6 3.9 | 0943 | NE | 45 | - | - | 0.081 0.012 | 234 21 | - |
| Napa-East (Palmaz 1400') | 1/17/26 | 68.8 2.1 | 1357 | 45.5 1.5 | 0234 | 33.6 2.7 | 65 14 | 27 8 | 5.7 | 16.8 4.3 | 0434 | NNE | 29 | 0.00 | 19.50 | 0.100 0.020 | 252 26 | - |
| 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) | 1/17/26 | 67.0 0.9 | 1228 | 42.3 2.1 | 0521 | - | - | - | 1.7 | 12.4 0.6 | 1327 | SSW | 201 | 0.00 | 15.55 | 0.057 0.013 | 245 30 | 0 0 |
| Napa-West Lower (Truchard) | 1/17/26 | 67.7 1.3 | 1230 | 29.8 0.6 | 0732 | 40.2 0.5 | 100 0 | 50 1 | - | - | - | - | - | - | - | - | 0 0 |
| Napa-South (Toyon Farms) | 1/17/26 | 66.0 0.2 | 1233 | 37.5 1.7 | 0712 | 46.5 0.2 | 100 0 | 61 5 | 1.0 | 8.1 1.9 | 1303 | SW | 228 | 0.00 | 9.78 | 0.029 0.009 | 121 18 | 0 0 |
| Toyon Remote 1 | 1/17/26 | 66.4 1.2 | 1331 | 32.5 0.4 | 0736 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 1/17/26 | 66.2 0.5 | 1219 | 31.1 0.9 | 0721 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 1/17/26 | 66.6 0.2 | 1442 | 31.3 0.5 | 0714 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 1/17/26 | 64.6 2.8 | 1225 | 34.5 0.7 | 0730 | 43.6 1.0 | 96 0 | 55 10 | 2.1 | 8.1 0.7 | 1316 | SW | 218 | 0.00 | 14.80 | 0.054 0.012 | 245 33 | - |
| Carneros (Saintsbury) | 1/17/26 | 66.0 1.4 | 1223 | 34.2 0.1 | 0726 | 43.2 0.6 | 100 0 | 53 4 | 1.7 | 7.5 2.7 | 1255 | SSW | 213 | 0.00 | 1.65 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 1/17/26 | 67.0 1.1 | 1341 | 35.8 1.0 | 0739 | 42.7 1.1 | - | - | 1.9 | 9.1 1.1 | 1257 | S | 190 | 0.00 | 14.19 | 0.053 0.009 | 233 28 | - |
| Suscol Mtn (Ranch 93) | 1/17/26 | 68.1 0.6 | 1151 | 51.9 3.5 | 0355 | 39.6 6.7 | 75 18 | 23 7 | 4.3 | 21.2 0.0 | 0159 | E | 86 | 0.00 | 9.83 | - | - | - |
| Suscol Upper (Ranch 92) | 1/17/26 | 68.4 0.5 | 1329 | 51.8 2.0 | 0433 | 41.2 5.7 | 75 10 | 30 13 | 2.2 | 13.8 1.8 | 0120 | ENE | 60 | 0.00 | 13.66 | - | - | 0 0 |
| Stanly (Ranch 45) | 1/17/26 | 65.1 0.8 | 1135 | 33.4 0.1 | 0737 | 42.4 2.7 | 99 4 | 54 5 | 2.8 | 10.4 0.1 | 1418 | SE | 126 | 0.00 | 15.30 | 0.062 0.010 | 273 31 | 0 0 |
| Carneros Upper (Ranch 81) | 1/17/26 | 64.8 1.5 | 1215 | 45.6 2.6 | 0719 | 45.9 1.8 | - | - | 3.0 | 10.5 0.6 | 1318 | SSE | 147 | - | - | - | - | - |
| Carneros (Mitsuko) | 1/17/26 | 64.8 1.6 | 1225 | 30.4 1.1 | 0727 | - | - | - | - | - | - | - | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 1/17/26 | 63.6 7.0 | 1249 | 34.7 1.3 | 0727 | 30.5 2.6 | 100 0 | 0 0 | 1.4 | 9.0 1.1 | 1317 | SSE | 164 | 0.00 | 12.79 | 0.039 0.008 | 159 19 | - |
| Carneros (Milton Rd) | 1/17/26 | 62.4 2.8 | 1232 | 31.8 0.4 | 0741 | 41.7 1.2 | 96 1 | 60 13 | - | - | - | - | 0.00 | 5.74 | - | - | - |
| Max | 75.1 | - | 56.6 | - | 46.5 | 100 | 61 | 5.7 | 21.2 | - | - | 0.00 | 22.87 | 0.100 | 336 | - | |
| Avg | - | - | - | - | 39.9 | - | - | 2.4 | - | - | - | - | - | - | - | - | |
| Min | 62.4 | - | 29.8 | - | 25.5 | 35 | 0 | 1.0 | 6.5 | - | - | 0.00 | 1.65 | 0.029 | 121 | - |