| 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 | 1/2/26 | 52.2 1.1 | 1306 | 48.5 4.4 | 1636 | - | - | - | - | - | - | - | 1.09 | 28.96 | - | - | - |
| Pope Valley (Weeks Lake) | 1/2/26 | 59.2 5.5 | 1156 | 51.6 4.7 | 0756 | 50.4 0.6 | 100 0 | 66 33 | 3.3 | 21.0 8.1 | 1446 | ESE | 113 | 0.51 | 14.05 | 0.029 0.019 | 80 40 | 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 | 1/2/26 | 60.9 5.2 | 1212 | 52.5 5.6 | 0758 | 52.3 1.9 | 99 1 | 73 19 | 6.1 | 28.2 10.3 | 2126 | SSW | 194 | 0.55 | 12.14 | 0.031 0.017 | 88 35 | - |
| Dollarhide 1AS Remote | 1/2/26 | 61.0 5.2 | 1212 | 50.6 3.8 | 0648 | 51.6 2.4 | 95 0 | 72 19 | 4.0 | 26.5 11.1 | 2313 | SSE | 157 | - | - | - | - | - |
| Dollarhide 17B Remote | 1/2/26 | 62.2 6.5 | 1214 | 51.9 4.8 | 0612 | - | 99 1 | 71 22 | - | - | - | - | - | - | - | - | - |
| Dollarhide 18A Remote | 1/2/26 | 60.8 5.2 | 1209 | 50.2 4.0 | 0732 | 51.6 1.8 | 100 0 | 70 20 | - | - | - | - | - | - | - | - | - |
| Angwin | 1/2/26 | 49.0 0.0 | 0146 | 46.3 4.0 | 1720 | 47.5 1.8 | 100 0 | 84 16 | 12.0 | 33.8 7.0 | 2055 | SSE | 147 | 0.92 | 27.20 | 0.003 0.003 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 1/2/26 | 51.8 1.0 | 1205 | 48.5 4.9 | 1808 | - | - | - | 5.4 | 24.6 5.8 | 2234 | SW | 226 | - | - | - | - | - |
| Deer Park | 1/2/26 | 58.2 4.0 | 1211 | 51.6 4.0 | 1831 | 50.8 1.1 | 99 0 | 67 24 | 7.0 | 30.9 12.8 | 1433 | SSE | 151 | 0.64 | 15.34 | 0.026 0.016 | 49 15 | - |
| Lower Chiles Valley (Brown) | 1/2/26 | 60.1 4.4 | 1214 | 51.4 4.3 | 0559 | 49.7 1.1 | 94 2 | 62 20 | 4.3 | 19.3 0.1 | 2351 | SE | 140 | 0.79 | 10.61 | 0.037 0.021 | 91 48 | 0 0 |
| Moss Creek Vineyard/Reservior | 1/2/26 | 58.6 3.6 | 1038 | 51.3 4.6 | 0737 | 49.9 1.0 | 95 5 | 64 23 | - | - | - | - | 0.69 | 14.14 | - | - | - |
| Max | 62.2 | - | 52.5 | - | 52.3 | 100 | 84 | 12.0 | 33.8 | - | - | 1.09 | 28.96 | 0.037 | 91 | - | |
| Avg | - | - | - | - | 50.5 | - | - | 6.0 | - | - | - | - | - | - | - | - | |
| Min | 49.0 | - | 46.3 | - | 47.5 | 94 | 62 | 3.3 | 19.3 | - | - | 0.51 | 10.61 | 0.003 | 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) | 1/2/26 | 59.4 4.7 | 1228 | 52.6 3.5 | 1811 | 52.1 1.8 | 97 0 | 69 22 | 3.2 | 14.3 1.5 | 1506 | SE | 136 | 0.57 | 16.46 | - | - | - |
| Diamond Mtn (Schramsberg) | 1/2/26 | 55.5 3.4 | 1227 | 50.4 3.4 | 1743 | 51.3 2.0 | 100 0 | 80 17 | - | - | - | - | 0.54 | 16.80 | - | - | - |
| Diamond Mtn (McEachran) | 1/2/26 | 56.8 3.5 | 1232 | 51.8 3.5 | 1811 | 52.8 2.3 | 100 0 | 84 14 | - | - | - | - | - | - | - | - | - |
| St. Helena-North | 1/2/26 | 59.4 5.0 | 1229 | 52.1 3.5 | 0741 | 52.8 1.5 | 100 0 | 69 31 | 2.6 | 18.6 6.6 | 1442 | SSE | 158 | 0.63 | 16.90 | 0.018 0.011 | 44 16 | - |
| St. Helena (NVV Office) | 1/2/26 | 60.5 5.5 | 1155 | 52.5 3.2 | 0741 | - | - | - | 1.9 | 17.5 9.9 | 2338 | ESE | 120 | 0.64 | 15.05 | - | - | - |
| Tiara Fria (East St. Helena) | 1/2/26 | 60.7 5.7 | 1158 | 51.9 2.8 | 0748 | 52.6 1.6 | 98 0 | 67 29 | 3.1 | 20.8 8.9 | 2236 | SSW | 196 | 0.58 | 14.06 | - | - | - |
| Rutherford Hill Estate | 1/2/26 | 59.9 5.6 | 1205 | 52.6 4.2 | 0718 | 52.4 1.3 | 100 0 | 70 27 | 2.4 | 16.0 1.5 | 2331 | SE | 129 | 0.01 | 4.14 | 0.023 0.014 | 72 35 | 0 0 |
| Rutherford-North (Mee Ln) | 1/2/26 | 59.7 12.7 | 1336 | 40.8 1.9 | 0733 | 46.1 2.1 | 100 1 | 67 28 | 3.7 | 20.0 6.4 | 1434 | SE | 143 | 0.63 | 12.90 | 0.025 0.014 | 73 29 | 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) | 1/2/26 | 61.5 6.3 | 1208 | 51.3 2.7 | 0736 | 51.8 1.4 | 97 0 | 64 26 | 3.0 | 18.0 5.7 | 2346 | SSW | 199 | 0.57 | 13.28 | 0.029 0.015 | 83 31 | 0 0 |
| OV561-East | 1/2/26 | 61.2 5.4 | 1210 | 51.9 3.0 | 0725 | - | - | - | - | - | - | - | - | - | - | - | - |
| Oakville | 1/2/26 | 61.2 5.7 | 1202 | 51.6 2.7 | 0732 | 52.1 1.1 | 98 0 | 64 28 | 4.4 | 23.7 12.6 | 2232 | SSE | 154 | 0.67 | 13.42 | 0.033 0.018 | 95 32 | - |
| OV518-West | 1/2/26 | 61.7 5.5 | 1224 | 52.3 2.9 | 0759 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon Remote (TKKE) | 1/2/26 | 62.1 6.4 | 1159 | 50.9 1.6 | 0716 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon | 1/2/26 | 61.1 6.1 | 1158 | 51.6 2.4 | 0729 | 52.9 1.6 | 100 1 | 69 25 | 4.5 | 26.8 15.3 | 2227 | SSW | 212 | 0.69 | 14.23 | 0.029 0.016 | 77 29 | - |
| To Kalon Remote (TKN5) | 1/2/26 | 61.8 6.0 | 1156 | 51.5 2.1 | 0719 | - | - | - | - | - | - | - | - | - | - | - | - |
| Yountville (Ranch 67) | 1/2/26 | 60.2 4.8 | 1144 | 50.9 2.7 | 0726 | 51.2 0.9 | 97 0 | 60 31 | 4.4 | 21.9 10.1 | 1630 | S | 174 | 0.16 | 11.66 | 0.037 0.015 | 124 2 | - |
| Stags Leap Dist (Silverado Vineyards) | 1/2/26 | 60.6 5.2 | 1139 | 50.4 2.2 | 0729 | 51.0 1.1 | 96 0 | 60 30 | 2.6 | 22.6 11.5 | 1436 | SSE | 163 | 0.57 | 14.70 | 0.031 0.016 | 87 30 | - |
| Borreo (Soda Canyon) | 1/2/26 | 59.0 5.0 | 1356 | 51.2 3.4 | 0710 | 50.6 0.7 | 98 0 | 53 39 | 2.7 | 23.4 16.7 | 1611 | SSE | 150 | 0.69 | 15.67 | 0.032 0.018 | 88 37 | - |
| Wappo Hill Floor | 1/2/26 | 61.0 7.1 | 1159 | 48.9 1.4 | 0746 | 51.6 1.3 | 100 0 | 63 37 | 3.1 | 21.6 13.2 | 2217 | SSW | 212 | 0.61 | 14.06 | 0.031 0.019 | 82 33 | - |
| Stags Leap Dist (Chimney Rock) | 1/2/26 | 61.0 5.6 | 1144 | 51.5 2.8 | 0736 | - | - | - | 3.3 | 21.3 12.0 | 1621 | SSE | 149 | 0.43 | 13.46 | 0.056 0.001 | 72 31 | 0 0 |
| Yountville-South (Ranch 87) | 1/2/26 | 61.3 6.2 | 1131 | 50.9 1.8 | 0729 | 53.1 1.2 | 100 0 | 67 33 | 2.6 | 16.5 9.0 | 1650 | ESE | 111 | 0.57 | 14.10 | 0.029 0.018 | 84 40 | - |
| Yountville-SE (Ranch 85) | 1/2/26 | 60.8 5.2 | 1223 | 51.2 1.9 | 0736 | 53.0 1.0 | 100 0 | 63 34 | 2.2 | 18.9 10.3 | 1644 | SSE | 158 | 0.63 | 13.84 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 1/2/26 | 61.4 6.4 | 1228 | 50.8 1.7 | 0729 | 52.1 1.2 | 98 1 | 63 32 | 2.4 | 17.4 4.9 | 1615 | SE | 138 | 0.55 | 13.70 | 0.030 0.019 | 80 42 | - |
| Napa-NW (Ranch 54) | 1/2/26 | 61.0 6.0 | 1256 | 50.7 1.7 | 0731 | 52.9 1.1 | 100 0 | 63 37 | 1.9 | 11.4 3.9 | 1635 | SE | 136 | 0.62 | 14.56 | - | 0 0 | 0 0 |
| Napa-North (Ranch 29) | 12/30/25 | 57.2 4.9 | 1404 | 30.1 0.7 | 0731 | 37.8 1.0 | 100 0 | 57 19 | 0.4 | 5.0 2.2 | 1447 | SW | 225 | 0.00 | 11.12 | 0.019 0.014 | 83 36 | - |
| Max | 62.1 | - | 52.6 | - | 53.1 | 100 | 84 | 4.5 | 26.8 | - | - | 0.69 | 16.90 | 0.056 | 124 | - | |
| Avg | - | - | - | - | 51.8 | - | - | 3.0 | - | - | - | - | - | - | - | - | |
| Min | 55.5 | - | 40.8 | - | 46.1 | 96 | 53 | 1.9 | 11.4 | - | - | 0.01 | 4.14 | 0.018 | 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 | 1/2/26 | 54.5 3.0 | 1040 | 49.3 3.5 | 1930 | 49.6 1.0 | 100 0 | 78 22 | 8.0 | 21.8 6.2 | 2203 | SSE | 161 | 0.64 | 19.09 | 0.020 0.014 | 64 37 | 0 0 |
| Mount George (Napa East) | 1/2/26 | 66.6 4.0 | 0959 | 54.6 2.6 | 2016 | 53.5 1.5 | 100 0 | 59 25 | 3.8 | 23.8 2.0 | 1500 | E | 79 | 0.37 | 5.29 | 0.043 0.027 | 103 53 | - |
| Napa-East (Palmaz 300') | 1/2/26 | 61.5 3.1 | 1037 | 51.7 2.6 | 0722 | 50.9 0.0 | 100 0 | 58 18 | 4.2 | 23.8 2.6 | 1500 | E | 94 | 0.32 | 12.43 | 0.042 0.026 | 89 49 | - |
| Napa-East (Palmaz 1200') | 1/2/26 | 56.4 2.1 | 1050 | 49.9 3.0 | 0730 | 45.0 2.3 | 100 0 | 4 1 | 4.2 | 24.2 1.2 | 1825 | SE | 128 | - | - | 0.038 0.013 | 95 56 | - |
| Napa-East (Palmaz 1400') | 1/2/26 | 55.2 1.9 | 1022 | 50.4 4.7 | 1928 | 49.9 0.8 | 100 0 | 71 18 | 5.4 | 28.4 8.0 | 2216 | SSE | 162 | 0.54 | 17.05 | 0.028 0.021 | 106 68 | - |
| 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) | 1/2/26 | 60.4 7.3 | 1249 | 51.1 3.9 | 0746 | - | - | - | 2.7 | 20.2 9.7 | 1417 | E | 101 | 0.49 | 12.73 | 0.049 0.012 | 84 40 | 0 0 |
| Napa-West Lower (Truchard) | 1/2/26 | 60.6 7.1 | 1252 | 47.5 0.2 | 0714 | 50.8 1.2 | 100 0 | 67 27 | - | - | - | - | - | - | - | - | 0 0 |
| Napa-South (Toyon Farms) | 1/2/26 | 61.0 5.5 | 1223 | 52.6 2.7 | 0731 | 53.9 1.5 | 100 0 | 73 27 | 0.9 | 12.3 6.0 | 2242 | SSE | 167 | 0.45 | 7.79 | 0.012 0.008 | 48 20 | 0 0 |
| Toyon Remote 1 | 1/2/26 | 61.4 5.5 | 1035 | 51.0 0.8 | 0713 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 1/2/26 | 62.0 5.9 | 1035 | 50.7 0.5 | 0713 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 1/2/26 | 61.4 5.5 | 1222 | 51.0 1.1 | 0716 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 1/2/26 | 60.9 5.6 | 1214 | 52.5 2.9 | 0753 | 52.0 1.2 | 96 0 | 64 28 | 2.7 | 15.7 6.4 | 1635 | SE | 128 | 0.49 | 12.07 | 0.030 0.017 | 91 42 | - |
| Carneros (Saintsbury) | 1/2/26 | 60.8 9.0 | 1252 | 47.4 0.2 | 0709 | 50.3 1.1 | 100 0 | 64 33 | 2.7 | 18.9 10.2 | 1649 | ENE | 78 | 0.00 | 1.65 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 1/2/26 | 61.7 4.5 | 1228 | 53.5 3.7 | 0738 | 51.3 10.6 | - | - | 6.7 | 24.5 4.2 | 1534 | SE | 128 | 0.43 | 12.19 | 0.045 0.021 | 100 48 | - |
| Suscol Mtn (Ranch 93) | 1/2/26 | 58.0 2.6 | 1045 | 52.0 5.1 | 1915 | 50.0 1.1 | 97 2 | 68 18 | 12.6 | 38.1 3.3 | 1552 | ESE | 109 | 0.00 | 9.81 | - | - | - |
| Suscol Upper (Ranch 92) | 1/2/26 | 59.3 3.3 | 1155 | 52.4 4.9 | 1935 | 46.4 3.5 | 100 0 | 3 0 | 7.4 | 24.6 5.7 | 1557 | E | 80 | 0.44 | 12.05 | - | - | 0 0 |
| Stanly (Ranch 45) | 1/2/26 | 61.7 9.1 | 1225 | 49.6 1.8 | 0711 | 50.1 2.0 | 95 2 | 60 27 | 4.7 | 17.8 4.1 | 1536 | ESE | 103 | 0.46 | 13.05 | 0.039 0.022 | 107 51 | 0 0 |
| Carneros Upper (Ranch 81) | 1/2/26 | 60.0 5.0 | 1313 | 52.7 3.7 | 2000 | 17.2 55.9 | - | - | 6.2 | 20.9 6.9 | 1417 | SE | 126 | - | - | - | - | - |
| Carneros (Mitsuko) | 1/2/26 | 61.3 5.5 | 1029 | 51.3 1.4 | 0745 | - | - | - | - | - | - | - | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 1/2/26 | 60.2 5.7 | 1253 | 52.4 3.2 | 0727 | -16.3 44.2 | 100 0 | 0 0 | 2.0 | 14.0 5.4 | 2218 | S | 171 | 0.44 | 10.36 | 0.043 0.011 | 62 24 | - |
| Carneros (Milton Rd) | 1/2/26 | 61.9 5.8 | 1039 | 52.2 1.7 | 0704 | 52.3 1.5 | 94 0 | 62 25 | - | - | - | - | 0.00 | 5.74 | - | - | - |
| Max | 66.6 | - | 54.6 | - | 53.9 | 100 | 78 | 12.6 | 38.1 | - | - | 0.64 | 19.09 | 0.049 | 107 | - | |
| Avg | - | - | - | - | 44.2 | - | - | 4.9 | - | - | - | - | - | - | - | - | |
| Min | 54.5 | - | 47.4 | - | -16.3 | 94 | 0 | 0.9 | 12.3 | - | - | 0.00 | 1.65 | 0.012 | 48 | - |