| 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 | 1/6/26 | 53.2 5.9 | 1446 | 43.8 0.0 | 0515 | - | - | - | - | - | - | - | 0.01 | 34.57 | - | - | - |
| Pope Valley (Weeks Lake) | 1/6/26 | 62.7 11.5 | 1450 | 41.8 2.5 | 0541 | 46.9 1.0 | 100 2 | 50 29 | 0.9 | 9.9 9.2 | 1227 | NE | 45 | 0.00 | 16.93 | 0.038 0.022 | 165 124 | 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 | 1/6/26 | 62.7 10.0 | 1247 | 46.7 1.3 | 0719 | 49.5 1.4 | 100 3 | 64 20 | 1.7 | 10.7 15.5 | 0031 | SE | 144 | 0.02 | 14.79 | 0.040 0.020 | 178 128 | - |
| Dollarhide 1AS Remote | 1/6/26 | 63.0 10.4 | 1409 | 45.0 3.3 | 0514 | 48.5 0.8 | 95 0 | 61 23 | 1.1 | 7.5 17.4 | 0033 | ESE | 114 | - | - | - | - | - |
| Dollarhide 17B Remote | 1/6/26 | 63.2 10.4 | 1440 | 43.7 4.2 | 0524 | 49.3 | 100 2 | 62 23 | - | - | - | - | - | - | - | - | - |
| Dollarhide 18A Remote | 1/6/26 | 63.5 10.9 | 1447 | 45.2 2.2 | 0511 | 48.7 1.3 | 100 2 | 60 23 | - | - | - | - | - | - | - | - | - |
| Angwin | 1/6/26 | 50.5 6.0 | 1454 | 43.4 1.7 | 0533 | 44.8 1.6 | 100 0 | 76 24 | 3.3 | 14.0 17.9 | 0016 | SSE | 160 | 0.01 | 32.02 | 0.002 0.002 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 1/6/26 | 54.4 7.5 | 1452 | 45.1 1.7 | 0502 | - | - | - | 2.4 | 11.2 13.1 | 0947 | NE | 34 | - | - | - | - | - |
| Deer Park | 1/6/26 | 61.9 11.1 | 1422 | 47.3 0.3 | 0738 | 47.6 0.7 | 96 0 | 55 32 | 2.4 | 12.4 8.5 | 1203 | NE | 52 | 0.00 | 18.50 | 0.033 0.022 | 122 102 | - |
| Lower Chiles Valley (Brown) | 1/6/26 | 60.5 8.6 | 1245 | 39.6 8.9 | 2325 | 45.5 0.0 | 100 7 | 62 13 | 1.7 | 14.2 9.7 | 0017 | ESE | 118 | 0.04 | 14.38 | 0.040 0.014 | 154 105 | 0 0 |
| Moss Creek Vineyard/Reservior | 1/6/26 | 60.3 8.9 | 1302 | 42.0 5.2 | 2302 | 46.5 0.8 | 100 8 | 61 18 | - | - | - | - | 0.01 | 19.00 | - | - | - |
| Max | 63.5 | - | 47.3 | - | 49.5 | 100 | 76 | 3.3 | 14.2 | - | - | 0.04 | 34.57 | 0.040 | 178 | - | |
| Avg | - | - | - | - | 47.5 | - | - | 1.9 | - | - | - | - | - | - | - | - | |
| Min | 50.5 | - | 39.6 | - | 44.8 | 95 | 50 | 0.9 | 7.5 | - | - | 0.00 | 14.38 | 0.002 | 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) | 1/6/26 | 62.0 9.9 | 1412 | 43.9 1.8 | 0744 | 49.1 0.9 | 97 0 | 57 28 | 1.4 | 7.3 7.3 | 0856 | W | 259 | 0.01 | 20.61 | - | - | - |
| Diamond Mtn (Schramsberg) | 1/6/26 | 56.4 7.5 | 1231 | 47.4 2.2 | 0746 | 47.9 0.7 | 100 0 | 68 32 | - | - | - | - | 0.01 | 20.76 | - | - | - |
| Diamond Mtn (McEachran) | 1/6/26 | 58.7 8.5 | 1328 | 46.5 1.1 | 0658 | 49.6 1.1 | 100 0 | 66 33 | - | - | - | - | - | - | - | - | - |
| St. Helena-North | 1/6/26 | 61.4 9.9 | 1413 | 44.6 0.7 | 0723 | 49.0 0.1 | 100 0 | 55 32 | 1.2 | 7.9 7.5 | 1138 | SSE | 162 | 0.01 | 20.73 | 0.032 0.028 | 129 113 | - |
| St. Helena (NVV Office) | 1/6/26 | 62.9 10.3 | 1412 | 44.2 0.3 | 0737 | - | - | - | 0.6 | 6.2 3.7 | 0902 | NNW | 336 | 0.01 | 18.18 | - | - | - |
| Tiara Fria (East St. Helena) | 1/6/26 | 62.9 10.1 | 1441 | 44.3 1.0 | 0758 | 48.9 0.2 | 98 0 | 54 34 | 1.4 | 6.3 6.9 | 0915 | WNW | 284 | 0.01 | 16.71 | - | - | - |
| Rutherford Hill Estate | 1/6/26 | 64.9 13.1 | 1413 | 48.1 0.4 | 0734 | 48.8 0.9 | 100 0 | 54 33 | 1.2 | 8.3 6.6 | 1143 | ESE | 114 | 0.00 | 17.00 | 0.043 0.033 | 181 150 | 0 0 |
| Rutherford-North (Mee Ln) | 1/6/26 | 64.0 13.8 | 1417 | 37.0 2.3 | 0718 | 45.0 0.1 | 100 0 | 57 30 | 1.4 | 7.2 8.5 | 1211 | NNW | 330 | 0.01 | 15.31 | 0.037 0.026 | 159 123 | 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) | 1/6/26 | 63.9 11.0 | 1514 | 41.3 6.6 | 0751 | 47.2 0.9 | 97 1 | 54 31 | 0.1 | 6.7 8.9 | 0928 | NNE | 28 | 0.02 | 16.02 | 0.044 0.033 | 208 168 | 0 0 |
| OV561-East | 1/6/26 | 65.3 12.2 | 1510 | 42.8 4.9 | 0745 | - | - | - | - | - | - | - | - | - | - | - | - |
| Oakville | 1/6/26 | 62.8 9.8 | 1459 | 41.9 5.7 | 0734 | 47.7 0.6 | 98 1 | 56 25 | 1.9 | 10.8 6.0 | 1013 | NW | 319 | 0.03 | 16.58 | 0.048 0.032 | 207 161 | - |
| OV518-West | 1/6/26 | 61.7 8.2 | 1437 | 43.0 4.4 | 0736 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon Remote (TKKE) | 1/6/26 | 62.8 9.6 | 1421 | 41.5 3.2 | 0756 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon | 1/6/26 | 63.9 10.9 | 1424 | 42.8 4.1 | 0741 | 48.7 0.2 | 100 2 | 57 28 | 1.9 | 8.5 6.9 | 1138 | NNW | 339 | 0.02 | 17.71 | 0.043 0.031 | 187 153 | - |
| To Kalon Remote (TKN5) | 1/6/26 | 63.4 10.1 | 1505 | 41.1 6.4 | 0752 | - | - | - | - | - | - | - | - | - | - | - | - |
| Yountville (Ranch 67) | 1/6/26 | 63.1 9.4 | 1457 | 41.2 7.2 | 0712 | 46.8 0.2 | 98 2 | 54 19 | 1.8 | 12.9 10.2 | 0943 | NW | 317 | 0.32 | 14.88 | 0.053 0.028 | 258 179 | - |
| Stags Leap Dist (Silverado Vineyards) | 1/6/26 | 65.1 12.4 | 1528 | 42.7 6.0 | 0707 | 46.9 0.2 | 97 2 | 50 24 | 0.8 | 6.1 12.5 | 1845 | ESE | 110 | 0.02 | 18.44 | 0.046 0.031 | 204 172 | - |
| Borreo (Soda Canyon) | 1/6/26 | 63.0 10.2 | 1403 | 43.0 4.7 | 0708 | 46.6 0.5 | 98 1 | 55 15 | 1.6 | 9.6 10.4 | 1044 | NNE | 24 | 0.04 | 18.80 | 0.047 0.030 | 216 180 | - |
| Wappo Hill Floor | 1/6/26 | 65.9 11.9 | 1450 | 43.3 3.8 | 2216 | 48.2 0.5 | 100 0 | 53 21 | 2.4 | 15.3 1.4 | 0945 | NW | 322 | 0.02 | 18.22 | 0.047 0.032 | 212 181 | - |
| Stags Leap Dist (Chimney Rock) | 1/6/26 | 67.0 12.9 | 1505 | 44.0 4.4 | 0810 | - | - | - | 2.2 | 10.1 12.3 | 1043 | WNW | 301 | 0.11 | 16.22 | 0.058 0.038 | 180 151 | 0 0 |
| Yountville-South (Ranch 87) | 1/6/26 | 65.1 11.7 | 1523 | 42.3 5.5 | 0726 | 48.7 0.8 | 100 0 | 55 22 | 1.5 | 9.9 3.5 | 1017 | NNW | 346 | 0.03 | 18.26 | 0.045 0.035 | 200 172 | - |
| Yountville-SE (Ranch 85) | 1/6/26 | 63.6 9.5 | 1500 | 43.6 4.8 | 2234 | 48.9 0.1 | 100 0 | 57 16 | 2.0 | 10.4 5.1 | 1035 | NNW | 338 | 0.02 | 17.18 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 1/6/26 | 65.4 12.0 | 1350 | 42.8 4.9 | 0735 | 47.8 0.4 | 98 1 | 53 24 | 2.0 | 12.1 1.1 | 1009 | NW | 323 | 0.02 | 16.09 | 0.044 0.030 | 188 158 | - |
| Napa-NW (Ranch 54) | 1/6/26 | 64.8 11.4 | 1532 | 45.7 1.1 | 0752 | 49.0 0.2 | 100 0 | 55 23 | 1.7 | 11.0 2.1 | 1037 | NW | 324 | 0.03 | 17.24 | - | 0 0 | 0 0 |
| Napa-North (Ranch 29) | 1/6/26 | 65.1 11.7 | 1514 | 44.2 2.7 | 0748 | 49.3 2.1 | 100 0 | 54 22 | 1.0 | 8.4 3.2 | 0142 | NW | 315 | 0.04 | 15.78 | 0.032 0.028 | 126 106 | - |
| Max | 67.0 | - | 48.1 | - | 49.6 | 100 | 68 | 2.4 | 15.3 | - | - | 0.32 | 20.76 | 0.058 | 258 | - | |
| Avg | - | - | - | - | 48.1 | - | - | 1.5 | - | - | - | - | - | - | - | - | |
| Min | 56.4 | - | 37.0 | - | 45.0 | 97 | 50 | 0.1 | 6.1 | - | - | 0.00 | 14.88 | 0.032 | 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 | 1/6/26 | 55.0 7.5 | 1302 | 45.3 0.7 | 0553 | 46.5 0.5 | 100 0 | 73 22 | 1.2 | 13.2 8.2 | 0008 | S | 181 | 0.03 | 22.87 | 0.028 0.025 | 133 120 | 0 0 |
| Mount George (Napa East) | 1/6/26 | 65.8 8.9 | 1155 | 42.4 8.0 | 2218 | 48.7 0.6 | 100 2 | 54 17 | 1.3 | 16.7 10.4 | 0105 | E | 84 | 0.03 | 7.16 | 0.043 0.009 | 183 137 | - |
| Napa-East (Palmaz 300') | 1/6/26 | 64.7 9.9 | 1455 | 45.6 5.4 | 0648 | 47.7 1.2 | 100 11 | 52 18 | 2.3 | 18.9 9.1 | 0037 | E | 79 | 0.03 | 14.03 | 0.040 0.006 | 158 122 | - |
| Napa-East (Palmaz 1200') | 1/6/26 | 60.2 9.9 | 1521 | 42.1 3.6 | 2235 | 42.9 2.5 | 100 0 | 11 14 | 2.6 | 14.2 7.6 | 0012 | ESE | 113 | - | - | 0.042 0.026 | 178 140 | - |
| Napa-East (Palmaz 1400') | 1/6/26 | 57.8 8.5 | 1540 | 43.3 1.4 | 2113 | 46.8 0.9 | 100 0 | 66 16 | 2.9 | 14.8 10.9 | 0009 | ESE | 120 | 0.03 | 19.50 | 0.036 0.025 | 182 148 | - |
| 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) | 1/6/26 | 64.0 10.8 | 1400 | 47.6 0.9 | 2228 | - | - | - | 3.0 | 11.7 2.8 | 0205 | NNW | 343 | 0.02 | 15.55 | 0.059 0.038 | 211 182 | 0 0 |
| Napa-West Lower (Truchard) | 1/6/26 | 65.6 12.2 | 1353 | 39.7 3.4 | 2158 | 46.0 1.2 | 100 0 | 54 23 | - | - | - | - | - | - | - | - | 0 0 |
| Napa-South (Toyon Farms) | 1/6/26 | 64.1 10.7 | 1336 | 46.2 1.0 | 0722 | 50.5 0.1 | 100 0 | 65 24 | 0.7 | 7.9 5.7 | 1418 | S | 183 | 0.03 | 9.78 | 0.024 0.023 | 104 86 | 0 0 |
| Toyon Remote 1 | 1/6/26 | 63.7 8.9 | 1305 | 42.8 1.9 | 2152 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 1/6/26 | 63.2 8.1 | 1252 | 42.1 4.3 | 2142 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 1/6/26 | 63.9 9.4 | 1304 | 42.4 2.2 | 2226 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 1/6/26 | 63.0 8.9 | 1441 | 44.3 1.8 | 0728 | 48.1 0.0 | 96 0 | 59 18 | 2.7 | 9.7 7.3 | 1116 | NNE | 21 | 0.03 | 14.80 | 0.049 0.034 | 210 179 | - |
| Carneros (Saintsbury) | 1/6/26 | 63.5 9.5 | 1255 | 42.9 1.1 | 0757 | 47.7 0.3 | 100 0 | 60 16 | 1.9 | 8.9 9.0 | 1352 | SSE | 158 | 0.00 | 1.65 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 1/6/26 | 63.6 9.5 | 1250 | 44.4 5.7 | 0744 | 47.6 0.8 | - | - | 3.1 | 13.8 15.2 | 0016 | E | 92 | 0.03 | 14.19 | 0.042 0.008 | 172 140 | - |
| Suscol Mtn (Ranch 93) | 1/6/26 | 61.7 10.6 | 1507 | 48.9 1.6 | 0249 | 46.9 1.0 | 93 5 | 60 17 | 5.9 | 27.2 11.1 | 0001 | ESE | 118 | 0.00 | 9.81 | - | - | - |
| Suscol Upper (Ranch 92) | 1/6/26 | 64.9 13.1 | 1453 | 48.8 0.7 | 0739 | 47.4 4.0 | 92 8 | 54 51 | 3.0 | 18.1 10.7 | 0021 | NE | 54 | 0.02 | 13.66 | - | - | 0 0 |
| Stanly (Ranch 45) | 1/6/26 | 64.2 8.7 | 1249 | 43.3 3.4 | 0745 | 47.1 0.0 | 98 6 | 56 13 | 3.3 | 12.7 8.5 | 0013 | ESE | 116 | 0.03 | 15.30 | 0.054 0.026 | 234 201 | 0 0 |
| Carneros Upper (Ranch 81) | 1/6/26 | 64.7 11.0 | 1339 | 47.1 0.9 | 0758 | 47.8 10.2 | - | - | 4.3 | 12.2 8.1 | 1105 | N | 3 | - | - | - | - | - |
| Carneros (Mitsuko) | 1/6/26 | 65.0 10.1 | 1320 | 39.7 6.0 | 0735 | - | - | - | - | - | - | - | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 1/6/26 | 62.7 8.8 | 1338 | 43.5 3.8 | 0724 | 25.2 13.1 | 100 0 | 0 0 | 1.5 | 10.3 5.8 | 1353 | SSE | 159 | 0.02 | 12.79 | 0.038 0.020 | 130 106 | - |
| Carneros (Milton Rd) | 1/6/26 | 63.4 7.8 | 1325 | 43.3 5.3 | 2157 | 47.7 0.4 | 96 4 | 60 11 | - | - | - | - | 0.00 | 5.74 | - | - | - |
| Max | 65.8 | - | 48.9 | - | 50.5 | 100 | 73 | 5.9 | 27.2 | - | - | 0.03 | 22.87 | 0.059 | 234 | - | |
| Avg | - | - | - | - | 45.9 | - | - | 2.6 | - | - | - | - | - | - | - | - | |
| Min | 55.0 | - | 39.7 | - | 25.2 | 92 | 0 | 0.7 | 7.9 | - | - | 0.00 | 1.65 | 0.024 | 104 | - |