| 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 | 4/25/26 | 50.2 17.0 | 1552 | 40.0 0.1 | 0444 | - | - | - | - | - | - | - | 0.00 | 49.62 | - | - | 0 0 |
| Pope Valley (Weeks Lake) | 4/25/26 | 57.0 15.3 | 1423 | 40.9 4.1 | 0454 | 44.6 0.0 | 100 0 | 65 31 | 2.1 | 15.1 0.2 | 1638 | WSW | 237 | 0.00 | 25.63 | 0.050 0.116 | 151 433 | 0 0 |
| Dollarhide Base | 4/25/26 | 59.7 14.3 | 1357 | 48.3 4.7 | 0334 | 47.2 0.7 | 93 6 | 69 24 | 6.8 | 21.6 5.0 | 1645 | WSW | 237 | 0.00 | 22.63 | 0.065 0.129 | 197 463 | 30 10 |
| Dollarhide 1AS Remote | 4/25/26 | 57.7 15.8 | 1357 | 48.4 8.7 | 0332 | 46.9 0.0 | 91 3 | 70 24 | 5.2 | 19.9 3.2 | 1900 | SW | 221 | - | - | - | - | 0 0 |
| Dollarhide 17B Remote | 4/25/26 | 58.1 15.2 | 1418 | 46.5 5.5 | 0512 | 47.4 0.2 | 97 3 | 72 27 | - | - | - | - | - | - | - | - | 0 10 |
| Dollarhide 18A Remote | 4/25/26 | 56.8 15.7 | 1441 | 47.9 10.6 | 0326 | 46.8 0.2 | 92 8 | 71 25 | - | - | - | - | - | - | - | - | 0 0 |
| Angwin | 4/25/26 | 47.0 16.2 | 1357 | 42.5 2.2 | 0641 | 43.4 1.4 | 100 5 | 85 51 | 3.4 | 16.8 2.9 | 1632 | SE | 136 | 0.00 | 44.46 | 0.003 0.023 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 4/25/26 | 50.4 14.9 | 1401 | 44.2 6.5 | 0538 | - | - | - | 4.0 | 15.0 2.0 | 1629 | SW | 235 | - | - | - | - | 0 0 |
| Deer Park | 4/25/26 | 55.2 16.3 | 1446 | 47.1 2.0 | 0120 | 45.5 1.1 | 95 1 | 67 21 | 3.0 | 14.5 1.0 | 1630 | SW | 236 | 0.00 | 28.18 | 0.037 0.090 | 95 325 | 0 0 |
| Lower Chiles Valley (Brown) | 4/25/26 | 55.0 15.1 | 1403 | 45.4 4.9 | 0109 | 44.8 0.9 | 95 5 | 68 34 | 3.4 | 18.2 5.1 | 1500 | NW | 305 | 0.00 | 25.25 | 0.045 0.113 | 137 464 | 0 0 |
| Moss Creek Vineyard/Reservior | 4/25/26 | 56.2 16.3 | 1522 | 45.6 3.9 | 0338 | 44.8 1.0 | 93 7 | 65 32 | - | - | - | - | 0.00 | 26.50 | - | - | 0 0 |
| Max | 59.7 | - | 48.4 | - | 47.4 | 100 | 85 | 6.8 | 21.6 | - | - | 0.00 | 49.62 | 0.065 | 197 | - | |
| Avg | - | - | - | - | 45.7 | - | - | 4.0 | - | - | - | - | - | - | - | - | |
| Min | 47.0 | - | 40.0 | - | 43.4 | 91 | 65 | 2.1 | 14.5 | - | - | 0.00 | 22.63 | 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 | 4/25/26 | 56.9 17.3 | 1439 | 46.4 4.8 | 0101 | 47.7 0.5 | 97 2 | 71 25 | - | - | - | - | 0.00 | 32.32 | - | - | 20 10 |
| Diamond Mtn (Schramsberg) | 4/25/26 | 54.7 14.3 | 1322 | 45.4 0.5 | 0224 | 46.3 0.2 | 100 0 | 68 17 | - | - | - | - | 0.00 | 30.72 | - | - | 0 0 |
| Diamond Mtn (McEachran) | 4/25/26 | 55.4 16.6 | 1339 | 47.3 2.7 | 0132 | 46.0 0.8 | 94 1 | 67 20 | - | - | - | - | - | - | - | - | 0 0 |
| St. Helena-North | 4/25/26 | 58.6 14.2 | 1441 | 46.6 3.9 | 0101 | 44.9 0.1 | 88 12 | 57 17 | 1.2 | 12.3 2.2 | 1449 | WSW | 245 | 0.00 | 30.46 | 0.045 0.098 | 131 367 | 0 0 |
| St. Helena (NVV Office) | 4/25/26 | 59.4 13.6 | 1430 | 47.0 3.0 | 0128 | - | - | - | 1.3 | 9.4 3.1 | 2116 | WSW | 255 | 0.00 | 27.95 | - | - | 60 10 |
| Tiara Fria (East St. Helena) | 4/25/26 | 58.1 13.8 | 1642 | 47.6 3.4 | 0122 | 46.1 1.0 | 93 3 | 60 17 | 2.8 | 12.6 1.3 | 1455 | WSW | 250 | 0.00 | 25.95 | - | - | 0 0 |
| Rutherford Hill Estate | 4/25/26 | 57.1 16.2 | 1332 | 47.2 2.0 | 0111 | 45.8 1.2 | 93 7 | 64 23 | 1.6 | 15.3 0.4 | 1606 | WSW | 249 | 0.00 | 24.50 | 0.040 0.107 | 117 424 | 20 10 |
| Rutherford-North (Mee Ln) | 4/25/26 | 58.6 15.6 | 1254 | 43.9 4.0 | 0152 | 45.6 0.6 | 96 1 | 60 19 | 2.6 | 15.1 2.0 | 1559 | W | 261 | 0.00 | 23.98 | 0.052 0.096 | 138 389 | 30 10 |
| Rutherford (STS) | 4/25/26 | 59.2 14.2 | 1406 | 45.9 3.6 | 0108 | 47.3 0.8 | 90 1 | 66 20 | 2.5 | 17.0 1.6 | 1612 | W | 264 | 0.00 | 25.26 | 0.057 0.106 | 188 415 | 60 10 |
| Oakville-NE (Ranch 88) | 4/25/26 | 59.8 13.0 | 1403 | 46.8 4.7 | 0144 | 45.3 1.0 | 93 7 | 55 18 | 2.0 | 15.3 2.6 | 1445 | WSW | 257 | 0.00 | 24.39 | 0.054 0.101 | 152 404 | 0 0 |
| OV561-East | 4/25/26 | 59.5 15.3 | 1742 | 47.6 4.1 | 0140 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Oakville | 4/25/26 | 59.0 13.0 | 1407 | 48.0 5.3 | 0147 | 45.6 1.1 | 92 5 | 58 17 | 3.7 | 14.8 2.9 | 1626 | SW | 228 | 0.00 | 24.96 | 0.065 0.090 | 186 387 | 0 0 |
| OV518-West | 4/25/26 | 58.8 12.6 | 1404 | 48.0 4.8 | 0120 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| To Kalon Remote (TKKE) | 4/25/26 | 60.4 13.1 | 1351 | 45.8 3.8 | 0118 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| To Kalon | 4/25/26 | 59.8 13.5 | 1356 | 46.4 3.4 | 0114 | 46.5 0.7 | 96 4 | 60 19 | 2.9 | 13.3 2.3 | 1456 | SW | 217 | 0.00 | 27.15 | 0.061 0.084 | 181 342 | 0 0 |
| To Kalon Remote (TKN5) | 4/25/26 | 59.7 14.6 | 1344 | 47.2 4.8 | 0122 | - | - | - | - | - | - | - | - | - | - | - | 10 10 |
| Yountville (Ranch 67) | 4/25/26 | 58.4 11.8 | 1305 | 47.9 5.2 | 0106 | 44.9 1.3 | 92 5 | 58 19 | 2.6 | 12.5 2.3 | 1711 | W | 275 | 0.00 | 23.06 | 0.062 0.095 | 210 405 | 0 0 |
| Stags Leap Dist (Silverado Vineyards) | 4/25/26 | 57.9 11.9 | 1156 | 48.0 5.3 | 0140 | 45.3 0.7 | 91 6 | 60 20 | 1.7 | 11.2 3.0 | 1353 | S | 174 | 0.00 | 27.09 | 0.043 0.103 | 130 402 | 0 0 |
| Borreo (Soda Canyon) | 4/25/26 | 55.1 12.6 | 1315 | 43.4 2.3 | 0125 | 44.9 0.3 | 97 1 | 65 19 | 1.4 | 12.6 1.1 | 1627 | SSW | 199 | 0.00 | 27.02 | 0.044 0.105 | 143 441 | 0 0 |
| Wappo Hill Floor | 4/25/26 | 59.1 12.0 | 1303 | 46.0 4.6 | 0105 | 46.7 0.7 | 100 0 | 60 16 | 2.4 | 13.2 2.8 | 1446 | SW | 236 | 0.00 | 26.26 | 0.050 0.101 | 132 419 | 60 10 |
| Stags Leap Dist (Chimney Rock) | 4/25/26 | 58.2 12.2 | 1534 | 47.4 4.4 | 0200 | 47.9 0.5 | 97 3 | 66 18 | 2.6 | 13.7 0.3 | 1335 | SSW | 196 | 0.00 | 25.63 | 0.047 0.090 | 127 379 | 0 0 |
| Yountville-South (Ranch 87) | 4/25/26 | 58.4 12.9 | 1303 | 45.6 2.1 | 0152 | 47.0 0.7 | 100 0 | 62 24 | 2.1 | 12.8 0.9 | 1534 | WSW | 246 | 0.00 | 26.90 | 0.051 0.100 | 140 418 | 50 10 |
| Yountville-SE (Ranch 85) | 4/25/26 | 58.6 11.8 | 1306 | 45.9 1.0 | 0130 | 47.1 0.8 | 97 3 | 63 17 | 1.2 | 10.0 1.9 | 1658 | NW | 322 | 0.00 | 25.19 | - | 0 0 | 0 10 |
| Oak Knoll-East (Ranch 53) | 4/25/26 | 58.7 11.9 | 1503 | 45.7 1.5 | 0128 | 45.8 1.0 | 95 1 | 59 16 | 2.4 | 13.4 0.3 | 1714 | WNW | 298 | 0.00 | 23.77 | 0.058 0.099 | 169 423 | 30 10 |
| Napa-NW (Ranch 54) | 4/25/26 | 59.5 12.0 | 1448 | 45.7 1.9 | 0130 | 46.2 0.7 | 100 0 | 59 20 | 1.6 | 10.3 0.9 | 1703 | W | 264 | 0.00 | 26.23 | - | 0 0 | 60 10 |
| Napa-North (Ranch 29) | 4/25/26 | 58.7 10.1 | 1331 | 48.2 2.7 | 0146 | 46.7 1.6 | 100 0 | 61 10 | 3.2 | 13.1 2.7 | 1749 | WSW | 244 | 0.00 | 24.67 | 0.045 0.064 | 97 284 | 0 10 |
| Max | 60.4 | - | 48.2 | - | 47.9 | 100 | 71 | 3.7 | 17.0 | - | - | 0.00 | 32.32 | 0.065 | 210 | - | |
| Avg | - | - | - | - | 46.2 | - | - | 2.2 | - | - | - | - | - | - | - | - | |
| Min | 54.7 | - | 43.4 | - | 44.9 | 88 | 55 | 1.2 | 9.4 | - | - | 0.00 | 23.06 | 0.040 | 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 | 4/25/26 | 53.2 10.2 | 1220 | 44.2 1.1 | 0225 | 44.0 0.2 | 96 5 | 71 24 | 1.3 | 8.8 4.2 | 1757 | S | 187 | 0.00 | 33.62 | 0.117 0.093 | 659 336 | 0 0 |
| Mount George (Napa East) | 4/25/26 | 76.2 1.8 | 1416 | 53.9 4.6 | 2351 | 55.1 0.1 | 98 2 | 66 14 | 2.2 | 11.9 0.9 | 1615 | WSW | 238 | 0.00 | 16.54 | 0.053 0.089 | 156 365 | 0 0 |
| Napa-East (Palmaz 300') | 4/25/26 | 58.7 10.6 | 1331 | 49.4 4.7 | 0103 | 46.1 1.1 | 89 11 | 61 14 | 2.6 | 16.3 3.4 | 1814 | WSW | 238 | 0.00 | 22.81 | 0.048 0.079 | 130 334 | 0 10 |
| Napa-East (Palmaz 1200') | 4/25/26 | 53.3 10.1 | 1338 | 46.5 5.1 | 0101 | 43.8 0.8 | 100 0 | 74 69 | 2.2 | 15.8 2.6 | 1738 | NNW | 346 | - | - | 0.039 0.084 | 133 375 | 0 0 |
| Napa-East (Palmaz 1400') | 4/25/26 | 52.6 11.2 | 1340 | 45.3 2.1 | 0638 | 45.4 1.0 | 100 0 | 76 23 | 3.3 | 16.8 1.2 | 1627 | W | 264 | 0.00 | 30.26 | 0.037 0.086 | 143 360 | 0 0 |
| Wooden Valley | 4/25/26 | 55.7 11.6 | 1347 | 48.2 2.0 | 0158 | 44.9 0.2 | 86 3 | 63 22 | 4.6 | 15.9 0.5 | 1435 | SSW | 195 | 0.00 | 28.57 | 0.059 0.091 | 201 374 | 0 0 |
| Napa-West Upper (Truchard) | 4/25/26 | 58.9 10.9 | 1342 | 47.1 1.8 | 0147 | 38.3 15.1 | 100 0 | 0 0 | 5.4 | 18.7 3.2 | 1601 | WSW | 256 | 0.00 | 23.93 | 0.065 0.080 | 178 356 | 0 0 |
| Napa-West Lower (Truchard) | 4/25/26 | 60.6 11.1 | 1333 | 44.3 4.0 | 0214 | 46.0 0.1 | 93 7 | 56 12 | - | - | - | - | - | - | - | - | 60 10 |
| Napa-South (Toyon Farms) | 4/25/26 | 57.9 10.6 | 1327 | 47.7 1.9 | 0205 | 48.4 1.2 | 97 3 | 69 9 | 3.8 | 13.6 1.7 | 1559 | WSW | 244 | 0.00 | 17.89 | 0.032 0.041 | 97 170 | 0 0 |
| Toyon Remote 1 | 4/25/26 | 61.0 10.8 | 1138 | 43.2 4.5 | 0214 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 4/25/26 | 59.1 10.2 | 1318 | 47.1 5.0 | 0209 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 4/25/26 | 60.9 10.5 | 1333 | 46.2 3.8 | 0130 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 4/25/26 | 59.0 11.6 | 1333 | 46.4 1.5 | 0210 | 46.2 1.0 | 95 2 | 59 11 | 2.4 | 13.4 4.2 | 1159 | SW | 222 | 0.00 | 23.12 | 0.060 0.081 | 200 332 | 30 10 |
| Carneros (Saintsbury) | 4/25/26 | 57.6 10.7 | 1335 | 45.7 2.0 | 0146 | 46.7 0.9 | 100 0 | 65 11 | 4.4 | 14.5 6.2 | 0924 | WSW | 244 | 0.01 | 8.67 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 4/25/26 | 57.3 10.7 | 1332 | 45.6 0.5 | 0124 | 46.2 0.9 | - | - | 4.2 | 14.8 1.4 | 1516 | WSW | 238 | 0.00 | 22.41 | 0.055 0.072 | 134 332 | 0 0 |
| Suscol Mtn (Ranch 93) | 4/25/26 | 53.1 15.4 | 1453 | 46.4 0.6 | 0101 | 45.3 1.3 | 95 3 | 71 19 | 11.2 | 26.2 3.1 | 1743 | NW | 313 | 0.00 | 18.04 | - | - | 0 0 |
| Suscol Upper (Ranch 92) | 4/25/26 | 53.9 12.0 | 1458 | 47.1 0.6 | 0101 | 45.7 4.8 | 100 0 | 71 68 | 5.1 | 18.1 1.2 | 1612 | W | 270 | 0.00 | 21.98 | - | - | 0 0 |
| Stanly (Ranch 45) | 4/25/26 | 58.1 9.6 | 1509 | 45.6 2.4 | 0201 | 46.5 0.7 | 94 2 | 64 10 | 4.6 | 15.2 3.7 | 1608 | W | 260 | 0.00 | 22.49 | 0.060 0.088 | 150 409 | 0 10 |
| Carneros Upper (Ranch 81) | 4/25/26 | 56.2 12.1 | 1318 | 48.4 1.0 | 0126 | 46.0 1.2 | - | - | 8.1 | 19.4 8.3 | 1552 | WSW | 251 | - | - | - | - | 0 0 |
| Carneros (Mitsuko) | 4/25/26 | 57.9 11.2 | 1315 | 43.7 3.4 | 0119 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 4/25/26 | 59.3 11.9 | 1335 | 47.8 1.3 | 0223 | 47.5 0.7 | 94 6 | 63 63 | 0.6 | 8.6 15.9 | 1644 | WNW | 301 | 0.01 | 19.29 | 0.042 0.077 | 148 298 | 0 0 |
| Carneros (Milton Rd) | 4/25/26 | 58.0 10.3 | 1440 | 43.6 1.1 | 0241 | 46.8 0.3 | 94 3 | 64 9 | - | - | - | - | 0.00 | 18.07 | - | - | 0 0 |
| Max | 76.2 | - | 53.9 | - | 55.1 | 100 | 76 | 11.2 | 26.2 | - | - | 0.01 | 33.62 | 0.117 | 659 | - | |
| Avg | - | - | - | - | 46.1 | - | - | 4.1 | - | - | - | - | - | - | - | - | |
| Min | 52.6 | - | 43.2 | - | 38.3 | 86 | 0 | 0.6 | 8.6 | - | - | 0.00 | 8.67 | 0.032 | 97 | - |