| 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 | 1/27/26 | 55.6 3.6 | 1215 | 33.9 3.7 | 0736 | - | - | - | - | - | - | - | 0.27 | 34.84 | - | - | - |
| Pope Valley (Weeks Lake) | 1/27/26 | 62.4 1.0 | 1256 | 28.8 3.5 | 0639 | 38.6 6.5 | 100 0 | 39 5 | 1.3 | 11.0 0.4 | 1313 | SSW | 203 | 0.05 | 16.99 | 0.047 0.014 | 183 83 | 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 | 1/27/26 | 64.5 3.5 | 1229 | 31.4 2.7 | 0741 | 42.1 5.2 | 100 0 | 40 5 | 2.6 | 15.0 1.8 | 1252 | SSW | 212 | 0.04 | 14.83 | 0.056 0.017 | 213 80 | - |
| Dollarhide 1AS Remote | 1/27/26 | 63.8 0.5 | 1224 | 28.4 0.5 | 0707 | 39.3 5.7 | 96 0 | 40 2 | 1.4 | 14.1 3.3 | 1245 | SW | 222 | - | - | - | - | - |
| Dollarhide 17B Remote | 1/27/26 | 63.8 0.9 | 1304 | 29.6 2.4 | 0744 | 41.1 5.8 | 100 0 | 42 2 | - | - | - | - | - | - | - | - | - |
| Dollarhide 18A Remote | 1/27/26 | 62.4 0.3 | 1257 | 27.6 1.3 | 0538 | 39.2 5.9 | 100 0 | 38 5 | - | - | - | - | - | - | - | - | - |
| Angwin | 1/27/26 | 53.4 1.6 | 1135 | 43.4 3.4 | 0513 | 37.0 9.8 | 100 36 | 43 12 | 4.8 | 16.9 4.7 | 1536 | SSE | 156 | 0.12 | 32.15 | 0.024 0.014 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 1/27/26 | 56.8 1.1 | 1207 | 35.8 0.7 | 0741 | - | - | - | 3.3 | 15.3 4.8 | 1535 | WSW | 240 | - | - | - | - | - |
| Deer Park | 1/27/26 | 60.6 2.2 | 1205 | 44.2 2.6 | 0646 | 41.0 6.4 | 97 20 | 43 8 | 3.1 | 12.1 1.5 | 1135 | SSE | 150 | 0.06 | 18.56 | 0.046 0.020 | 129 74 | - |
| Lower Chiles Valley (Brown) | 1/27/26 | 63.3 2.0 | 1231 | 33.0 1.7 | 0119 | 40.6 4.8 | 100 0 | 28 11 | 2.1 | 11.5 1.3 | 1156 | SSE | 158 | 0.08 | 14.47 | 0.055 0.017 | 205 86 | 0 0 |
| Moss Creek Vineyard/Reservior | 1/27/26 | 63.8 0.7 | 1308 | 32.4 0.3 | 0735 | 40.6 3.9 | 100 0 | 38 2 | - | - | - | - | 0.05 | 19.05 | - | - | - |
| Max | 64.5 | - | 44.2 | - | 42.1 | 100 | 43 | 4.8 | 16.9 | - | - | 0.27 | 34.84 | 0.056 | 213 | - | |
| Avg | - | - | - | - | 40.0 | - | - | 2.7 | - | - | - | - | - | - | - | - | |
| Min | 53.4 | - | 27.6 | - | 37.0 | 96 | 28 | 1.3 | 11.0 | - | - | 0.04 | 14.47 | 0.024 | 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 | 1/27/26 | 61.8 3.8 | 1208 | 33.4 4.0 | 0728 | 42.5 6.3 | 100 0 | 50 13 | - | - | - | - | 0.10 | 22.75 | - | - | - |
| Fotsch (Maple Lane) | 1/27/26 | 61.2 2.9 | 1202 | 32.0 3.0 | 0720 | 40.5 5.7 | 97 0 | 45 13 | 1.7 | 11.2 0.2 | 1202 | ESE | 110 | 0.07 | 20.68 | - | - | - |
| Diamond Mtn (Schramsberg) | 1/27/26 | 57.1 1.6 | 1144 | 46.7 4.6 | 0050 | 40.8 8.1 | 100 25 | 50 13 | - | - | - | - | 0.08 | 20.84 | - | - | - |
| Diamond Mtn (McEachran) | 1/27/26 | 58.5 2.8 | 1326 | 43.4 6.4 | 0720 | 42.2 6.7 | 99 12 | 49 14 | - | - | - | - | - | - | - | - | - |
| St. Helena-North | 1/27/26 | 60.7 3.1 | 1211 | 34.5 3.3 | 0706 | 41.0 6.8 | 100 2 | 45 14 | 1.6 | 12.5 1.1 | 1201 | SE | 146 | 0.08 | 20.81 | 0.040 0.020 | 124 88 | - |
| St. Helena (NVV Office) | 1/27/26 | 61.4 2.4 | 1217 | 34.7 3.1 | 0611 | - | - | - | 1.0 | 8.4 0.7 | 1404 | SE | 136 | 0.07 | 18.25 | - | - | - |
| Tiara Fria (East St. Helena) | 1/27/26 | 60.8 1.8 | 1222 | 34.1 2.6 | 0731 | 41.0 4.7 | 97 0 | 44 6 | 1.7 | 10.9 2.1 | 1358 | ESE | 105 | 0.08 | 16.80 | - | - | - |
| Rutherford Hill Estate | 1/27/26 | 63.0 1.4 | 1227 | 44.0 3.4 | 0001 | 42.1 4.2 | 100 18 | 40 2 | 1.6 | 11.2 1.3 | 1334 | SSE | 159 | 0.08 | 17.08 | 0.046 0.012 | 154 89 | 0 0 |
| Rutherford-North (Mee Ln) | 1/27/26 | 61.4 3.7 | 1214 | 31.0 1.1 | 0723 | 40.1 4.4 | 99 0 | 43 7 | 2.3 | 13.2 3.3 | 1218 | SE | 133 | 0.09 | 15.41 | 0.049 0.011 | 158 86 | 0 0 |
| Rutherford (STS) | 1/27/26 | 63.9 0.5 | 1055 | 34.4 0.9 | 0520 | 42.1 4.0 | 92 0 | 52 14 | 2.1 | 10.9 0.2 | 1222 | ESE | 110 | 0.10 | 16.12 | 0.050 0.017 | 188 91 | - |
| Oakville-NE (Ranch 88) | 1/27/26 | 61.8 1.0 | 1226 | 31.2 0.3 | 0537 | 39.2 4.1 | 96 0 | 41 4 | 1.4 | 12.5 4.6 | 1206 | SSW | 194 | 0.08 | 16.11 | 0.054 0.010 | 186 92 | 0 0 |
| OV561-East | 1/27/26 | 62.2 4.2 | 1225 | 33.0 1.2 | 0742 | - | - | - | - | - | - | - | - | - | - | - | - |
| Oakville | 1/27/26 | 60.5 1.5 | 1222 | 32.8 0.3 | 0727 | 40.6 4.1 | 98 1 | 45 5 | 2.5 | 14.4 4.0 | 1214 | SE | 127 | 0.08 | 16.66 | 0.055 0.008 | 188 81 | - |
| OV518-West | 1/27/26 | 61.4 0.4 | 1220 | 33.5 0.3 | 0709 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon Remote (TKKE) | 1/27/26 | 61.9 1.5 | 1218 | 33.2 1.4 | 0403 | - | - | - | - | - | - | - | - | - | - | - | - |
| To Kalon | 1/27/26 | 61.6 0.5 | 1225 | 33.8 1.3 | 0617 | 41.9 4.7 | 100 2 | 47 7 | 2.3 | 11.7 2.0 | 1204 | SE | 139 | 0.08 | 17.79 | 0.051 0.011 | 168 83 | - |
| To Kalon Remote (TKN5) | 1/27/26 | 63.0 1.2 | 1223 | 32.1 1.5 | 0726 | - | - | - | - | - | - | - | - | - | - | - | - |
| Yountville (Ranch 67) | 1/27/26 | 61.0 0.4 | 1229 | 32.6 0.8 | 0704 | 40.2 4.1 | 97 1 | 42 4 | 2.2 | 10.3 1.5 | 2045 | E | 79 | 0.12 | 15.28 | 0.056 0.007 | 254 89 | - |
| Stags Leap Dist (Silverado Vineyards) | 1/27/26 | 61.2 0.3 | 1237 | 34.6 2.1 | 0711 | 40.4 4.1 | 96 0 | 40 2 | 1.7 | 11.2 1.7 | 2042 | E | 81 | 0.11 | 18.55 | 0.056 0.009 | 211 61 | - |
| Borreo (Soda Canyon) | 1/27/26 | 60.9 0.1 | 1239 | 36.3 2.5 | 0713 | 40.7 4.4 | 97 3 | 38 4 | 1.5 | 7.2 0.8 | 1240 | SW | 228 | 0.12 | 18.92 | 0.050 0.011 | 210 68 | - |
| Wappo Hill Floor | 1/27/26 | 62.6 1.3 | 1235 | 32.3 0.2 | 0728 | 41.6 4.1 | 100 0 | 44 5 | 1.5 | 9.3 1.6 | 2059 | SSE | 151 | 0.08 | 18.30 | 0.048 0.015 | 192 76 | - |
| Stags Leap Dist (Chimney Rock) | 1/27/26 | 64.4 0.9 | 1231 | 33.4 1.3 | 0731 | - | - | - | 1.7 | 10.1 0.9 | 2045 | ENE | 66 | 0.12 | 16.36 | 0.046 0.010 | 170 65 | 0 0 |
| Yountville-South (Ranch 87) | 1/27/26 | 62.2 1.9 | 1215 | 33.2 1.3 | 0728 | 42.4 4.4 | 100 0 | 43 1 | 1.4 | 8.4 0.1 | 1221 | SW | 227 | 0.10 | 18.36 | 0.046 0.014 | 174 90 | - |
| Yountville-SE (Ranch 85) | 1/27/26 | 63.5 0.3 | 1240 | 34.0 0.5 | 0650 | 41.8 4.0 | 100 0 | 41 1 | 1.3 | 8.2 0.3 | 1205 | S | 178 | 0.11 | 17.29 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 1/27/26 | 62.5 2.1 | 1240 | 34.4 1.0 | 0657 | 41.1 3.8 | 96 0 | 40 2 | 1.2 | 7.8 0.2 | 1241 | SSE | 147 | 0.09 | 16.18 | 0.046 0.013 | 178 82 | - |
| Napa-NW (Ranch 54) | 1/27/26 | 61.7 2.1 | 1234 | 36.9 2.1 | 0645 | 42.2 4.6 | 100 0 | 43 3 | 1.5 | 8.7 0.3 | 1157 | SE | 141 | 0.10 | 17.34 | - | 0 0 | 0 0 |
| Napa-North (Ranch 29) | 1/27/26 | 62.5 1.0 | 1251 | 33.5 1.6 | 0707 | 45.3 6.4 | 100 0 | 41 2 | 1.1 | 8.1 1.9 | 1247 | SSW | 210 | 0.10 | 15.88 | 0.029 0.012 | 98 67 | - |
| Max | 64.4 | - | 46.7 | - | 45.3 | 100 | 52 | 2.5 | 14.4 | - | - | 0.12 | 22.75 | 0.056 | 254 | - | |
| Avg | - | - | - | - | 41.4 | - | - | 1.7 | - | - | - | - | - | - | - | - | |
| Min | 57.1 | - | 31.0 | - | 39.2 | 92 | 38 | 1.0 | 7.2 | - | - | 0.07 | 15.28 | 0.029 | 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 | 1/27/26 | 56.7 0.7 | 1209 | 47.1 4.9 | 0702 | 40.7 7.3 | 100 32 | 39 0 | 3.1 | 14.4 5.3 | 2100 | S | 182 | 0.17 | 23.04 | 0.058 0.006 | 287 73 | 0 0 |
| Mount George (Napa East) | 1/27/26 | 70.4 5.5 | 1226 | 32.8 2.1 | 0658 | 42.9 2.8 | 99 0 | 38 3 | 0.8 | 9.3 2.1 | 1252 | W | 268 | 0.08 | 7.24 | 0.051 0.015 | 211 74 | - |
| Napa-East (Palmaz 300') | 1/27/26 | 64.4 0.8 | 1225 | 36.0 0.1 | 0701 | 42.2 3.5 | 100 0 | 36 1 | 1.1 | 8.3 2.4 | 1318 | SW | 226 | 0.08 | 14.11 | 0.046 0.012 | 180 67 | - |
| Napa-East (Palmaz 1200') | 1/27/26 | 59.2 0.6 | 1244 | 42.9 3.7 | 0542 | 40.5 4.4 | 100 7 | 26 16 | 2.9 | 20.5 6.6 | 0324 | E | 80 | - | - | 0.054 0.014 | 201 60 | - |
| Napa-East (Palmaz 1400') | 1/27/26 | 61.0 1.5 | 1206 | 44.3 4.4 | 0122 | 42.0 5.5 | 100 10 | 36 9 | 3.7 | 15.9 2.7 | 0651 | E | 100 | 0.11 | 19.61 | 0.058 0.009 | 203 56 | - |
| 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) | 1/27/26 | 61.6 2.9 | 1218 | 40.6 1.4 | 0753 | - | - | - | 2.0 | 10.1 0.1 | 1218 | S | 171 | 0.11 | 15.66 | 0.050 0.015 | 186 95 | 0 0 |
| Napa-West Lower (Truchard) | 1/27/26 | 62.1 4.4 | 1217 | 31.4 0.4 | 0547 | 41.6 4.3 | 100 0 | 49 9 | - | - | - | - | - | - | - | - | 0 0 |
| Napa-South (Toyon Farms) | 1/27/26 | 62.8 2.9 | 1205 | 38.2 0.1 | 0714 | 44.9 3.1 | 100 3 | 54 8 | 0.8 | 8.4 0.3 | 1232 | SSE | 167 | 0.12 | 9.90 | 0.021 0.013 | 82 58 | 0 0 |
| Toyon Remote 1 | 1/27/26 | 61.4 1.7 | 1206 | 32.8 0.9 | 0716 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 1/27/26 | 61.5 1.6 | 1200 | 32.5 0.0 | 0735 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 1/27/26 | 61.6 1.8 | 1154 | 32.6 1.4 | 0700 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 1/27/26 | 59.4 1.2 | 1217 | 34.2 0.7 | 0714 | 42.6 3.1 | 97 1 | 48 2 | 1.5 | 9.4 1.2 | 1209 | SE | 133 | 0.11 | 14.91 | 0.046 0.018 | 190 94 | - |
| Carneros (Saintsbury) | 1/27/26 | 60.1 1.0 | 1148 | 34.4 1.1 | 0723 | 42.5 2.8 | 100 0 | 49 3 | 1.5 | 11.3 1.0 | 1150 | SE | 136 | 0.11 | 1.76 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 1/27/26 | 63.0 1.0 | 1238 | 35.7 0.2 | 0714 | 42.1 3.2 | - | - | 2.5 | 10.6 1.9 | 1225 | SE | 124 | 0.10 | 14.29 | 0.051 0.014 | 186 76 | - |
| Suscol Mtn (Ranch 93) | 1/27/26 | 60.6 3.6 | 1247 | 48.4 7.3 | 0454 | 41.4 3.0 | 95 12 | 33 15 | 6.8 | 30.5 2.1 | 0550 | ESE | 102 | 0.00 | 9.84 | - | - | - |
| Suscol Upper (Ranch 92) | 1/27/26 | 63.4 2.8 | 1248 | 46.8 4.9 | 0822 | 42.0 2.9 | 93 10 | 36 9 | 1.9 | 19.7 2.8 | 0734 | NE | 41 | 0.08 | 13.74 | - | - | 0 0 |
| Stanly (Ranch 45) | 1/27/26 | 62.0 0.3 | 1124 | 33.6 1.9 | 0727 | 42.0 3.0 | 97 0 | 46 0 | 2.4 | 10.6 5.1 | 1159 | SSE | 158 | 0.11 | 15.41 | 0.054 0.022 | 206 101 | 0 0 |
| Carneros Upper (Ranch 81) | 1/27/26 | 60.4 0.8 | 1140 | 42.3 2.5 | 0707 | 36.3 2.9 | - | - | 3.1 | 13.4 1.5 | 1148 | SSE | 156 | - | - | - | - | - |
| Carneros (Mitsuko) | 1/27/26 | 60.7 0.2 | 1213 | 30.7 1.1 | 0707 | - | - | - | - | - | - | - | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 1/27/26 | 58.8 1.6 | 1157 | 35.1 0.1 | 0724 | 41.7 3.8 | 100 0 | 0 0 | 1.4 | 10.4 1.1 | 1142 | SSE | 167 | 0.09 | 12.88 | 0.036 0.011 | 131 46 | - |
| Carneros (Milton Rd) | 1/27/26 | 60.2 0.5 | 1354 | 33.8 1.2 | 0451 | 42.2 2.8 | 95 1 | 51 0 | - | - | - | - | 0.00 | 5.74 | - | - | - |
| Max | 70.4 | - | 48.4 | - | 44.9 | 100 | 54 | 6.8 | 30.5 | - | - | 0.17 | 23.04 | 0.058 | 287 | - | |
| Avg | - | - | - | - | 41.7 | - | - | 2.4 | - | - | - | - | - | - | - | - | |
| Min | 56.7 | - | 30.7 | - | 36.3 | 93 | 0 | 0.8 | 8.3 | - | - | 0.00 | 1.76 | 0.021 | 82 | - |