| 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 | 5/5/26 | 61.0 0.4 | 1552 | 47.6 6.2 | 0538 | - | - | - | - | - | - | - | 0.06 | 50.09 | - | - | 0 10 |
| Pope Valley (Weeks Lake) | 5/5/26 | 70.4 2.7 | 1524 | 51.0 9.7 | 0545 | 51.4 3.7 | 100 0 | 51 9 | 1.7 | 10.3 0.0 | 1639 | SW | 220 | 0.02 | 26.24 | 0.100 0.034 | 340 117 | 40 10 |
| Dollarhide Base | 5/5/26 | 73.5 5.6 | 1520 | 51.9 4.3 | 0445 | 53.5 3.2 | 98 1 | 56 2 | 3.2 | 15.8 2.8 | 1751 | SSW | 193 | 0.02 | 23.14 | 0.115 0.042 | 397 146 | 50 10 |
| Dollarhide 1AS Remote | 5/5/26 | 71.9 4.9 | 1440 | 51.9 7.3 | 0447 | 53.0 3.8 | 94 0 | 56 2 | 2.6 | 14.2 2.7 | 1623 | SW | 235 | - | - | - | - | 40 10 |
| Dollarhide 17B Remote | 5/5/26 | 73.1 4.9 | 1642 | 52.1 7.9 | 0458 | 53.6 3.7 | 99 1 | 57 6 | - | - | - | - | - | - | - | - | 40 10 |
| Dollarhide 18A Remote | 5/5/26 | 69.6 5.4 | 1506 | 51.2 9.2 | 0220 | 52.8 3.9 | 99 0 | 61 4 | - | - | - | - | - | - | - | - | 20 10 |
| Angwin | 5/5/26 | 58.2 0.4 | 1507 | 45.5 0.9 | 0457 | 48.6 3.0 | 100 0 | 76 19 | 2.2 | 9.5 5.5 | 1524 | ESE | 107 | 0.01 | 45.11 | 0.004 0.003 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 5/5/26 | 61.4 1.6 | 1507 | 47.2 3.1 | 0421 | - | - | - | 2.9 | 11.9 1.6 | 1712 | WNW | 289 | - | - | - | - | 0 10 |
| Deer Park | 5/5/26 | 67.5 2.5 | 1540 | 50.9 4.3 | 0431 | 50.6 2.0 | 97 0 | 59 10 | 3.5 | 14.3 0.9 | 1621 | NW | 320 | 0.01 | 28.72 | 0.080 0.022 | 246 57 | 0 0 |
| Lower Chiles Valley (Brown) | 5/5/26 | 66.5 4.1 | 1439 | 50.8 7.3 | 0435 | 50.5 3.1 | 94 3 | 57 4 | 2.4 | 11.3 0.8 | 1650 | SSE | 151 | 0.02 | 25.86 | 0.073 0.010 | 241 24 | 20 10 |
| Moss Creek Vineyard/Reservior | 5/5/26 | 64.9 0.4 | 1523 | 50.8 7.6 | 0131 | 50.7 3.6 | 97 3 | 57 9 | - | - | - | - | 0.01 | 27.05 | - | - | 20 10 |
| Max | 73.5 | - | 52.1 | - | 53.6 | 100 | 76 | 3.5 | 15.8 | - | - | 0.06 | 50.09 | 0.115 | 397 | - | |
| Avg | - | - | - | - | 51.6 | - | - | 2.6 | - | - | - | - | - | - | - | - | |
| Min | 58.2 | - | 45.5 | - | 48.6 | 94 | 51 | 1.7 | 9.5 | - | - | 0.01 | 23.14 | 0.004 | 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 | 5/5/26 | 66.8 3.4 | 1433 | 51.9 3.7 | 0542 | 52.9 1.9 | 99 0 | 66 17 | - | - | - | - | 0.02 | 32.79 | - | - | 0 10 |
| Diamond Mtn (Schramsberg) | 5/5/26 | 65.1 1.0 | 1437 | 49.8 2.4 | 0545 | 51.2 2.1 | 100 0 | 65 15 | - | - | - | - | 0.01 | 31.20 | - | - | 0 0 |
| Diamond Mtn (McEachran) | 5/5/26 | 63.5 1.1 | 1505 | 51.1 3.7 | 0533 | 50.8 1.8 | 98 0 | 66 17 | - | - | - | - | - | - | - | - | 0 0 |
| St. Helena-North | 5/5/26 | 70.6 3.4 | 1506 | 52.6 6.2 | 0507 | 51.5 2.8 | 100 0 | 50 6 | 1.4 | 13.6 4.2 | 1819 | NW | 308 | 0.01 | 31.03 | 0.087 0.027 | 273 74 | 40 10 |
| St. Helena (NVV Office) | 5/5/26 | 70.8 0.7 | 1619 | 52.9 6.8 | 0300 | - | - | - | 1.2 | 9.4 0.7 | 1724 | W | 274 | 0.02 | 28.47 | - | - | 60 10 |
| Tiara Fria (East St. Helena) | 5/5/26 | 70.1 3.2 | 1555 | 52.9 7.1 | 0155 | 52.0 3.1 | 96 0 | 57 12 | 2.5 | 13.3 4.0 | 1622 | WNW | 290 | 0.01 | 26.44 | - | - | 10 10 |
| Rutherford Hill Estate | 5/5/26 | 70.8 4.0 | 1504 | 51.2 4.4 | 0231 | 52.7 3.4 | 100 0 | 56 7 | 1.2 | 11.0 2.9 | 1653 | S | 171 | 0.01 | 25.00 | 0.083 0.022 | 276 64 | 10 10 |
| Rutherford-North (Mee Ln) | 5/5/26 | 71.1 2.3 | 1512 | 47.7 6.4 | 0619 | 50.5 3.2 | 96 0 | 53 10 | 2.1 | 10.1 0.7 | 1424 | NW | 312 | 0.02 | 24.52 | 0.094 0.028 | 297 80 | 20 10 |
| Rutherford (STS) | 5/5/26 | 70.9 2.9 | 1515 | 52.3 9.4 | 0142 | 52.5 3.9 | 89 3 | 61 11 | 1.8 | 12.1 1.8 | 1715 | W | 266 | 0.11 | 25.82 | 0.098 0.025 | 321 70 | 50 10 |
| Oakville-NE (Ranch 88) | 5/5/26 | 70.4 1.7 | 1512 | 52.2 9.6 | 0102 | 51.9 4.6 | 100 1 | 53 15 | 1.4 | 12.8 2.8 | 1700 | S | 172 | 0.02 | 24.92 | 0.096 0.028 | 305 69 | 0 0 |
| OV561-East | 5/5/26 | 68.8 2.5 | 1517 | 52.7 8.5 | 0118 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Oakville | 5/5/26 | 68.1 1.2 | 1514 | 52.4 8.8 | 0102 | 51.5 3.6 | 97 0 | 54 14 | 2.9 | 13.2 1.8 | 1628 | ESE | 113 | 0.16 | 25.51 | 0.102 0.024 | 316 54 | 0 0 |
| OV518-West | 5/5/26 | 67.9 1.3 | 1543 | 52.5 8.9 | 0139 | - | - | - | - | - | - | - | - | - | - | - | 10 10 |
| To Kalon Remote (TKKE) | 5/5/26 | 69.2 0.5 | 1520 | 52.9 9.9 | 0134 | - | - | - | - | - | - | - | - | - | - | - | 50 10 |
| To Kalon | 5/5/26 | 69.0 2.2 | 1528 | 52.4 8.8 | 0201 | 52.2 3.6 | 98 1 | 58 13 | 2.3 | 11.4 1.4 | 1927 | SW | 227 | 0.02 | 27.70 | 0.094 0.026 | 296 65 | 0 0 |
| To Kalon Remote (TKN5) | 5/5/26 | 69.6 2.4 | 1541 | 52.8 9.3 | 0115 | - | - | - | - | - | - | - | - | - | - | - | 10 10 |
| Yountville (Ranch 67) | 5/5/26 | 66.9 1.7 | 1450 | 51.7 8.5 | 0111 | 50.8 3.7 | 96 0 | 56 14 | 2.0 | 14.5 4.7 | 1615 | SSE | 151 | 0.03 | 23.62 | 0.100 0.016 | 354 24 | 0 0 |
| Stags Leap Dist (Silverado Vineyards) | 5/5/26 | 67.4 2.4 | 1434 | 51.9 8.3 | 0101 | 50.8 3.5 | 94 1 | 56 9 | 1.9 | 13.2 3.8 | 1613 | S | 174 | 0.02 | 27.62 | 0.095 0.020 | 318 48 | 0 0 |
| Borreo (Soda Canyon) | 5/5/26 | 64.4 2.6 | 1603 | 50.3 8.7 | 0329 | 50.5 4.1 | 98 0 | 63 11 | 1.3 | 10.0 1.3 | 1607 | SSW | 197 | 0.02 | 27.52 | 0.075 0.002 | 254 15 | 0 0 |
| Wappo Hill Floor | 5/5/26 | 67.8 1.5 | 1447 | 50.2 8.0 | 0346 | 51.8 3.7 | 100 0 | 59 11 | 2.3 | 11.7 1.3 | 1624 | SE | 141 | 0.03 | 26.75 | 0.089 0.019 | 283 50 | 20 10 |
| Stags Leap Dist (Chimney Rock) | 5/5/26 | 66.8 1.6 | 1559 | 52.9 10.1 | 0235 | 53.5 4.1 | 99 1 | 66 12 | 2.5 | 13.7 3.6 | 1602 | SE | 136 | 0.01 | 26.14 | 0.083 0.018 | 263 39 | 0 0 |
| Yountville-South (Ranch 87) | 5/5/26 | 68.0 2.5 | 1447 | 52.5 8.9 | 0409 | 52.9 3.7 | 100 0 | 60 10 | 1.6 | 10.7 0.7 | 1614 | SSW | 201 | 0.02 | 27.39 | 0.097 0.029 | 326 89 | 40 10 |
| Yountville-SE (Ranch 85) | 5/5/26 | 67.4 1.9 | 1452 | 52.6 8.8 | 0252 | 52.8 3.9 | 100 0 | 61 13 | 2.3 | 12.5 4.6 | 1630 | S | 179 | 0.01 | 25.69 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 5/5/26 | 67.9 2.4 | 1500 | 52.5 8.7 | 0304 | 51.9 4.0 | 96 1 | 57 15 | 1.9 | 14.6 4.6 | 1631 | SSE | 166 | 0.02 | 24.30 | 0.089 0.011 | 282 11 | 20 10 |
| Napa-NW (Ranch 54) | 5/5/26 | 69.5 0.5 | 1426 | 52.9 7.6 | 0200 | 52.7 4.1 | 100 0 | 56 16 | 0.8 | 9.7 0.0 | 1611 | SW | 219 | 0.01 | 26.77 | - | 0 0 | 50 10 |
| Napa-North (Ranch 29) | 5/5/26 | 66.0 1.3 | 1515 | 52.1 7.7 | 0152 | 52.3 3.2 | 100 0 | 62 17 | 1.5 | 12.4 0.7 | 1721 | S | 180 | 0.02 | 25.18 | 0.058 0.017 | 166 60 | 0 0 |
| Max | 71.1 | - | 52.9 | - | 53.5 | 100 | 66 | 2.9 | 14.6 | - | - | 0.16 | 32.79 | 0.102 | 354 | - | |
| Avg | - | - | - | - | 51.9 | - | - | 1.8 | - | - | - | - | - | - | - | - | |
| Min | 63.5 | - | 47.7 | - | 50.5 | 89 | 50 | 0.8 | 9.4 | - | - | 0.01 | 23.62 | 0.058 | 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 | 5/5/26 | 63.6 2.2 | 1501 | 48.0 2.0 | 0426 | 50.1 4.0 | 100 0 | 64 12 | 1.1 | 8.9 0.6 | 1047 | NNW | 342 | 0.03 | 34.19 | 0.132 0.008 | 638 26 | 0 0 |
| Mount George (Napa East) | 5/5/26 | 65.6 0.6 | 1309 | 53.5 9.1 | 0154 | 53.2 3.1 | 97 3 | 66 18 | 1.6 | 9.8 0.9 | 1724 | E | 89 | 0.03 | 17.04 | 0.073 0.006 | 233 3 | 0 0 |
| Napa-East (Palmaz 300') | 5/5/26 | 66.1 1.8 | 1301 | 51.8 7.4 | 0159 | 51.6 3.2 | 100 0 | 61 12 | 1.6 | 8.8 0.2 | 1746 | S | 190 | 0.03 | 23.29 | 0.063 0.005 | 196 10 | 0 0 |
| Napa-East (Palmaz 1200') | 5/5/26 | 59.2 0.8 | 1309 | 48.9 7.9 | 0203 | 46.4 3.4 | 100 0 | 50 39 | 1.5 | 9.8 0.8 | 1309 | NW | 314 | - | - | 0.058 0.001 | 195 24 | 0 0 |
| Napa-East (Palmaz 1400') | 5/5/26 | 60.1 1.0 | 1306 | 48.0 4.4 | 0204 | 50.3 3.0 | 100 0 | 77 14 | 2.1 | 10.8 0.5 | 1610 | SW | 230 | 0.02 | 30.79 | 0.057 0.003 | 219 18 | 0 0 |
| Wooden Valley | 5/5/26 | 63.0 2.4 | 1555 | 50.4 7.1 | 0242 | 49.7 3.6 | 93 3 | 66 13 | 2.5 | 13.0 0.7 | 1848 | WSW | 242 | 0.02 | 29.11 | 0.070 0.004 | 246 15 | 0 0 |
| Napa-West Upper (Truchard) | 5/5/26 | 66.7 1.8 | 1505 | 50.1 4.5 | 0336 | 12.5 9.5 | 100 0 | 0 0 | 3.6 | 16.9 2.5 | 1621 | SE | 146 | 0.03 | 24.41 | 0.102 0.022 | 282 44 | 0 0 |
| Napa-West Lower (Truchard) | 5/5/26 | 70.0 1.1 | 1227 | 50.8 10.1 | 0351 | 51.4 4.8 | 100 0 | 53 12 | - | - | - | - | - | - | - | - | 50 10 |
| Napa-South (Toyon Farms) | 5/5/26 | 66.5 1.4 | 1512 | 52.2 5.6 | 0249 | 53.4 3.4 | 100 0 | 68 18 | 2.4 | 12.8 1.0 | 1821 | SW | 231 | 0.02 | 18.34 | 0.048 0.014 | 151 49 | 0 0 |
| Toyon Remote 1 | 5/5/26 | 70.3 0.7 | 1416 | 51.9 12.5 | 0101 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 5/5/26 | 67.5 0.9 | 1508 | 52.6 11.4 | 0113 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 5/5/26 | 69.4 0.8 | 1503 | 52.3 9.6 | 0351 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 5/5/26 | 67.0 1.3 | 1431 | 52.2 8.4 | 0305 | 51.0 3.2 | 95 1 | 59 19 | 2.2 | 11.3 1.3 | 1857 | W | 274 | 0.03 | 23.58 | 0.087 0.007 | 287 16 | 0 0 |
| Carneros (Saintsbury) | 5/5/26 | 66.6 1.3 | 1416 | 48.7 5.6 | 0310 | 50.6 2.8 | 100 0 | 60 16 | 4.6 | 16.2 1.9 | 1826 | SW | 234 | 0.00 | 8.68 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 5/5/26 | 66.6 2.0 | 1329 | 52.0 6.9 | 0101 | 51.4 3.0 | - | - | 3.8 | 14.4 0.6 | 1705 | S | 186 | 0.02 | 22.84 | 0.082 0.004 | 235 12 | 0 0 |
| Suscol Mtn (Ranch 93) | 5/5/26 | 65.5 5.5 | 1251 | 49.2 1.9 | 0246 | 50.3 3.0 | 100 1 | 70 18 | 6.1 | 16.2 4.2 | 1901 | NW | 306 | 0.02 | 18.59 | - | - | 0 0 |
| Suscol Upper (Ranch 92) | 5/5/26 | 62.8 1.8 | 1251 | 49.8 1.7 | 0257 | 50.2 25.5 | 100 0 | 3 0 | 3.2 | 13.4 2.1 | 0413 | WSW | 238 | 0.02 | 22.35 | - | - | 0 0 |
| Stanly (Ranch 45) | 5/5/26 | 67.8 2.1 | 1431 | 49.8 7.0 | 0251 | 50.6 3.0 | 95 2 | 59 16 | 5.1 | 14.7 0.8 | 1714 | SW | 217 | 0.00 | 22.49 | 0.097 0.007 | 294 9 | 0 0 |
| Carneros Upper (Ranch 81) | 5/5/26 | 65.2 0.7 | 1455 | 51.4 4.6 | 0234 | 28.2 0.4 | - | - | 7.4 | 20.8 3.6 | 1742 | WSW | 250 | - | - | - | - | 0 0 |
| Carneros (Mitsuko) | 5/5/26 | 66.9 1.4 | 1426 | 52.5 12.4 | 0101 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 5/5/26 | 68.4 0.1 | 1503 | 52.0 9.4 | 0235 | 9.2 24.1 | 100 0 | 0 0 | 0.6 | 10.4 1.8 | 1809 | WNW | 300 | 0.04 | 19.37 | 0.075 0.004 | 249 2 | 0 0 |
| Carneros (Milton Rd) | 5/5/26 | 67.6 2.3 | 1414 | 52.7 10.6 | 0240 | 51.8 3.2 | 94 2 | 59 15 | - | - | - | - | 0.00 | 18.07 | - | - | 0 0 |
| Max | 70.3 | - | 53.5 | - | 53.4 | 100 | 77 | 7.4 | 20.8 | - | - | 0.04 | 34.19 | 0.132 | 638 | - | |
| Avg | - | - | - | - | 45.1 | - | - | 3.1 | - | - | - | - | - | - | - | - | |
| Min | 59.2 | - | 48.0 | - | 9.2 | 93 | 0 | 0.6 | 8.8 | - | - | 0.00 | 8.68 | 0.048 | 151 | - |