| 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 | 10/31/26 | 58.3 5.8 | 1608 | 38.6 1.8 | 0408 | - | - | - | - | - | - | - | 0.00 | 0.83 | - | - | 0 0 |
| Pope Valley (Weeks Lake) | 10/31/26 | 61.8 8.6 | 1601 | 33.4 0.9 | 0740 | 39.0 0.9 | 100 6 | 39 3 | 1.0 0.1 | 10.7 0.4 | 1731 | SW | 221 | 0.00 | 0.07 | 0.037 0.041 | 138 151 | 0 0 |
| Dollarhide Base | 10/31/26 | 61.2 11.6 | 1359 | 40.4 1.0 | 0745 | 44.1 0.9 | 99 6 | 52 12 | 2.2 0.1 | 11.9 1.5 | 1721 | SSW | 208 | 0.00 | 0.42 | 0.043 0.034 | 132 131 | 0 0 |
| Dollarhide 1AS Remote | 10/31/26 | 60.8 11.3 | 1400 | 34.6 1.1 | 0732 | 41.2 1.8 | 93 2 | 51 12 | 1.8 0.4 | 13.4 1.9 | 1718 | SW | 214 | - | - | - | - | 0 0 |
| Dollarhide 16A Remote | 10/31/26 | 60.8 10.9 | 1718 | 39.8 0.5 | 0750 | 43.6 0.9 | 98 4 | 52 12 | - | - | - | - | - | - | - | - | 0 0 |
| Dollarhide 18A Remote | 10/31/26 | 60.8 12.4 | 1654 | 33.0 1.2 | 0737 | 41.0 2.0 | 99 3 | 51 13 | - | - | - | - | - | - | - | - | 0 0 |
| Hardin Rd (Eakle) | 10/13/26 | 77.0 2.0 | 1534 | 32.3 1.2 | 0726 | - | - | - | - | - | - | - | - | - | - | - | 20 20 |
| Angwin | 10/31/26 | 55.0 6.6 | 1621 | 42.5 5.5 | 0557 | 38.7 1.7 | 100 25 | 53 5 | 2.0 0.5 | 13.4 0.4 | 1201 | S | 177 | 0.00 | 0.35 | 0.014 0.012 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 10/31/26 | 56.4 9.2 | 1629 | 31.2 2.4 | 0503 | - | - | - | 1.4 0.2 | 11.9 0.7 | 1250 | WSW | 241 | - | - | - | - | 0 0 |
| Las Posadas (Cal Fire) | 10/31/26 | 56.5 9.6 | 1713 | 41.1 3.0 | 0737 | 42.2 0.3 | 98 10 | 53 8 | 5.7 1.6 | 19.1 3.6 | 1337 | SW | 220 | 0.00 | 0.55 | 0.048 0.035 | 141 143 | - |
| Deer Park | 10/31/26 | 62.6 8.0 | 1627 | 44.8 6.0 | 0702 | 43.1 0.6 | 95 22 | 44 6 | 1.7 0.8 | 9.0 5.3 | 1357 | SW | 234 | 0.00 | 0.22 | 0.037 0.038 | 115 102 | 30 10 |
| Lower Chiles Valley (Brown) | 10/31/26 | 60.6 8.3 | 1648 | 33.8 1.7 | 0709 | 40.0 2.6 | 100 0 | 44 6 | 1.2 0.0 | 14.6 3.7 | 1342 | NW | 306 | 0.00 | 0.72 | 0.044 0.032 | 153 118 | 0 0 |
| Moss Creek Vineyard/Reservior | 10/31/26 | 63.9 7.0 | 1401 | 39.7 1.8 | 0725 | 40.6 2.9 | 98 5 | 27 10 | - | - | - | - | 0.00 | 0.54 | - | - | 0 0 |
| Max | 63.9 | - | 44.8 | - | 44.1 | 100 | 53 | 5.7 | 19.1 | - | - | 0.00 | 0.83 | 0.048 | 153 | - | |
| Avg | - | - | - | - | 41.3 | - | - | 2.1 | - | - | - | - | - | - | - | - | |
| Min | 55.0 | - | 31.2 | - | 38.7 | 93 | 27 | 1.0 | 9.0 | - | - | 0.00 | 0.07 | 0.014 | 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 | 10/31/26 | 61.1 9.3 | 1704 | 38.9 1.4 | 0714 | 43.0 0.3 | 96 8 | 55 13 | - | - | - | - | 0.00 | 0.15 | - | - | 0 0 |
| Diamond Mtn (Schramsberg) | 10/31/26 | 59.0 7.2 | 1545 | 46.4 3.7 | 0619 | 41.6 0.4 | 91 21 | 49 5 | - | - | - | - | 0.00 | 0.15 | - | - | 0 10 |
| Diamond Mtn (McEachran) | 10/31/26 | 61.1 7.3 | 1603 | 44.8 4.2 | 0741 | 41.9 0.8 | 86 14 | 48 6 | - | - | - | - | - | - | - | - | 30 10 |
| St. Helena-North | 10/31/26 | 65.0 8.4 | 1620 | 39.3 3.0 | 0714 | 40.2 0.3 | 89 10 | 39 5 | 1.2 | 9.4 4.0 | 1357 | NNW | 333 | 0.00 | 0.15 | 0.037 0.045 | 140 102 | 0 10 |
| St. Helena (NVV Office) | 10/31/26 | 64.5 6.9 | 1621 | 39.2 4.0 | 0726 | - | - | - | 0.6 | 5.0 6.0 | 1512 | NNW | 330 | 0.00 | 0.32 | - | - | 0 0 |
| Tiara Fria (East St. Helena) | 10/31/26 | 62.6 7.6 | 1638 | 38.5 2.0 | 0746 | 42.1 1.4 | 94 4 | 44 3 | 1.0 | 7.7 3.1 | 1358 | W | 261 | 0.00 | 0.52 | - | - | 0 0 |
| Prisoner Winery | 10/31/26 | 62.1 10.8 | 1605 | 39.2 2.4 | 0749 | 42.6 1.4 | 97 4 | 46 8 | 0.6 | 5.9 2.0 | 1519 | SW | 221 | 0.00 | 0.41 | 0.006 0.010 | 0 0 | 0 0 |
| Rutherford Hill Estate | 10/31/26 | 63.0 9.1 | 1717 | 44.9 4.2 | 0736 | 44.1 0.1 | 100 15 | 45 6 | 0.8 | 8.6 3.1 | 1405 | NW | 305 | 0.00 | 0.50 | 0.034 0.040 | 130 134 | 0 0 |
| Rutherford-North (Mee Ln) | 10/31/26 | 64.1 7.0 | 1604 | 35.9 4.0 | 0729 | 41.3 2.1 | 96 4 | 45 4 | 1.2 | 6.4 8.8 | 1347 | WNW | 287 | 0.00 | 0.50 | 0.036 0.045 | 136 128 | 0 0 |
| Rutherford (STS) | 10/31/26 | 65.4 8.1 | 1607 | 36.7 3.9 | 0716 | 41.9 3.7 | 88 1 | 50 5 | 0.9 | 6.6 4.6 | 1552 | W | 264 | 0.00 | 0.42 | 0.037 0.051 | 149 167 | 0 0 |
| Oakville-NE (Ranch 88) | 10/31/26 | 63.3 8.3 | 1644 | 34.6 3.0 | 0715 | 40.1 2.6 | 98 5 | 43 5 | 0.4 | 6.7 4.5 | 1537 | W | 259 | 0.00 | 0.44 | 0.035 0.046 | 143 143 | 0 0 |
| OV561-East | 10/23/26 | 78.1 18.1 | 1535 | 48.2 3.0 | 2037 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Oakville | 10/23/26 | 75.1 15.1 | 1542 | 47.2 3.4 | 2038 | 43.2 11.1 | 97 0 | 17 69 | 2.6 | 14.6 7.4 | 1322 | WSW | 256 | 0.07 | 0.26 | 0.099 0.083 | 304 253 | 0 0 |
| OV518-West | 10/23/26 | 73.4 13.3 | 1634 | 48.3 2.7 | 2001 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| To Kalon Remote (TKKE) | 10/31/26 | 64.3 7.1 | 1632 | 36.4 5.2 | 0706 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| To Kalon | 10/31/26 | 63.3 6.5 | 1644 | 37.7 3.9 | 0705 | 42.5 2.1 | 96 4 | 48 3 | 1.2 | 8.7 3.4 | 1530 | SW | 229 | 0.00 | 0.33 | 0.038 0.045 | 142 150 | 0 0 |
| To Kalon Remote (TKN5) | 10/31/26 | 63.5 7.9 | 1644 | 36.6 4.0 | 0706 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Yountville (Ranch 67) | 10/31/26 | 62.2 6.7 | 1644 | 36.0 3.7 | 0731 | 40.4 2.5 | 94 3 | 42 0 | 0.9 | 7.7 4.7 | 1400 | N | 0 | 0.00 | 0.46 | 0.050 0.038 | 276 103 | 0 0 |
| Stags Leap Dist (Silverado Vineyards) | 10/31/26 | 62.8 6.2 | 1347 | 36.4 5.6 | 0711 | 41.0 2.4 | 96 3 | 47 4 | 0.6 | 7.7 3.8 | 1212 | SSE | 157 | 0.00 | 0.48 | 0.040 0.039 | 160 112 | 0 0 |
| Borreo (Soda Canyon) | 10/31/26 | 61.0 7.3 | 1634 | 40.5 2.8 | 0705 | 41.6 2.2 | 97 5 | 46 4 | 1.2 | 9.3 1.1 | 1333 | NW | 320 | 0.00 | 0.82 | 0.043 0.028 | 178 98 | 0 0 |
| Wappo Hill Floor | 10/31/26 | 64.8 5.8 | 1346 | 36.5 3.6 | 0709 | 41.9 2.6 | 100 0 | 44 2 | 1.1 | 10.1 1.8 | 0025 | W | 275 | 0.00 | 0.51 | 0.041 0.039 | 156 125 | 0 0 |
| Stags Leap Dist (Chimney Rock) | 10/31/26 | 62.6 7.2 | 1622 | 35.9 2.9 | 0703 | 42.7 3.6 | 99 1 | 52 3 | 0.9 | 8.4 4.1 | 1334 | NNE | 12 | 0.00 | 0.60 | 0.038 0.032 | 150 108 | 0 0 |
| Yountville-South (Ranch 87) | 10/31/26 | 65.7 5.7 | 1625 | 36.9 3.7 | 0634 | 42.9 2.1 | 100 0 | 43 2 | 0.6 | 6.0 3.7 | 0042 | ENE | 75 | 0.00 | 0.49 | 0.038 0.040 | 153 131 | 40 10 |
| Yountville-SE (Ranch 85) | 10/31/26 | 62.9 7.0 | 1648 | 37.8 2.9 | 0651 | 42.5 2.8 | 98 4 | 47 2 | 0.8 | 7.6 3.3 | 1327 | NNE | 17 | 0.00 | 0.56 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 10/31/26 | 65.5 4.2 | 1634 | 38.2 3.6 | 0643 | 41.9 2.4 | 95 3 | 39 3 | 0.5 | 6.4 4.3 | 0037 | N | 353 | 0.00 | 0.47 | 0.042 0.035 | 171 118 | 40 10 |
| Napa-NW (Ranch 54) | 10/31/26 | 65.4 6.1 | 1624 | 38.1 5.2 | 0644 | 41.9 2.0 | 100 11 | 40 2 | 0.5 | 7.7 1.1 | 1609 | S | 189 | 0.00 | 0.50 | - | 0 0 | 0 0 |
| Napa-North (Ranch 29) | 10/31/26 | 63.6 6.8 | 1637 | 37.7 3.3 | 0641 | 43.1 2.6 | 100 0 | 46 4 | 0.6 | 7.8 2.7 | 1302 | WSW | 244 | 0.00 | 0.47 | 0.030 0.026 | 98 89 | 0 0 |
| Max | 65.7 | - | 46.4 | - | 44.1 | 100 | 55 | 1.2 | 10.1 | - | - | 0.00 | 0.82 | 0.050 | 276 | - | |
| Avg | - | - | - | - | 42.0 | - | - | 0.8 | - | - | - | - | - | - | - | - | |
| Min | 59.0 | - | 34.6 | - | 40.1 | 86 | 39 | 0.4 | 5.0 | - | - | 0.00 | 0.15 | 0.006 | 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 | 10/31/26 | 57.3 4.7 | 1406 | 46.3 4.6 | 0642 | 40.6 1.2 | 85 12 | 52 6 | 0.8 | 6.1 4.7 | 1409 | ENE | 67 | 0.00 | 0.77 | 0.038 0.027 | 168 74 | 0 0 |
| Mount George (Napa East) | 10/31/26 | 61.6 15.4 | 1351 | 41.7 0.9 | 0024 | 44.2 2.2 | 99 6 | 48 5 | 0.8 | 8.6 3.6 | 1542 | WSW | 258 | 0.00 | 0.48 | 0.042 0.030 | 165 109 | 0 0 |
| Napa-East (Palmaz 300') | 10/31/26 | 65.0 7.4 | 1351 | 41.9 2.3 | 0502 | 43.7 1.2 | 100 10 | 41 4 | 1.0 | 7.5 3.4 | 1219 | SSW | 206 | 0.00 | 0.45 | 0.037 0.032 | 144 100 | 0 0 |
| Napa-East (Palmaz 1200') | 10/31/26 | 57.6 6.6 | 1635 | 40.0 3.2 | 0436 | 39.4 5.1 | 100 0 | 23 18 | 1.5 | 11.0 0.8 | 1304 | NW | 312 | - | - | 0.039 0.022 | 155 80 | 0 0 |
| Napa-East (Palmaz 1400') | 10/31/26 | 57.2 7.2 | 1328 | 41.4 1.5 | 0023 | 43.3 1.5 | 100 4 | 57 7 | 1.8 | 11.2 0.7 | 1239 | SSW | 210 | 0.00 | 0.74 | 0.040 0.020 | 167 72 | 0 0 |
| Wooden Valley | 10/31/26 | 60.1 7.2 | 1355 | 37.0 0.2 | 0028 | 40.0 3.1 | 97 2 | 45 5 | 1.6 | 13.4 1.8 | 1332 | SW | 216 | 0.00 | 0.47 | 0.050 0.016 | 188 63 | 0 0 |
| Napa-West Upper (Truchard) | 10/31/26 | 64.4 6.7 | 1633 | 44.4 4.5 | 0649 | 24.2 20.1 | 100 9 | 0 41 | 1.4 | 11.2 0.6 | 1313 | WSW | 249 | 0.00 | 0.40 | 0.047 0.038 | 157 140 | 0 0 |
| Napa-West Lower (Truchard) | 10/31/26 | 65.5 5.4 | 1632 | 36.0 4.4 | 0511 | 40.7 2.6 | 94 4 | 43 2 | - | - | - | - | - | - | - | - | 0 0 |
| Napa-South (Toyon Farms) | 10/31/26 | 63.6 7.2 | 1401 | 43.9 3.3 | 0549 | 45.9 1.4 | 99 6 | 55 8 | 1.2 | 12.0 0.2 | 1317 | W | 262 | 0.00 | 0.40 | 0.030 0.023 | 87 81 | 0 0 |
| Toyon Remote 1 | 10/31/26 | 64.3 6.1 | 1313 | 38.6 3.0 | 0619 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 10/31/26 | 63.4 6.2 | 1640 | 38.1 4.7 | 0509 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 10/31/26 | 65.0 5.3 | 1400 | 38.5 4.4 | 0511 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 10/31/26 | 64.2 5.4 | 1631 | 40.4 4.3 | 0621 | 42.8 1.5 | 95 7 | 47 4 | 1.7 | 10.2 2.3 | 1253 | WNW | 289 | 0.00 | 0.41 | 0.048 0.036 | 163 145 | 0 0 |
| Carneros (Saintsbury) | 10/31/26 | 63.7 4.9 | 1352 | 39.1 6.0 | 0709 | 42.6 2.2 | 100 10 | 48 4 | 2.4 | 13.7 0.7 | 1313 | W | 259 | 0.00 | 0.45 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 10/31/26 | 63.3 5.9 | 1627 | 42.8 2.4 | 0607 | 43.8 1.2 | 100 8 | 48 5 | 2.4 | 11.8 0.5 | 1331 | WSW | 257 | 0.00 | 0.51 | 0.048 0.031 | 159 112 | 0 0 |
| Suscol Mtn (Ranch 93) | 10/31/26 | 63.6 8.3 | 1637 | 48.4 2.6 | 0050 | 44.0 2.5 | 92 3 | 52 11 | 5.3 | 22.4 7.5 | 1314 | NNW | 342 | 0.00 | 0.65 | - | - | 0 0 |
| Suscol Upper (Ranch 92) | 10/31/26 | 60.7 7.5 | 1636 | 48.3 2.5 | 0059 | 44.4 2.2 | 91 3 | 52 12 | 1.7 | 15.0 1.9 | 1328 | WSW | 254 | 0.00 | 0.37 | - | - | 0 0 |
| Stanly (Ranch 45) | 10/30/26 | 69.3 2.4 | 1417 | 44.4 1.9 | 0045 | 45.5 4.2 | 92 3 | 45 13 | 3.2 | 11.1 0.8 | 1625 | SSW | 213 | 0.00 | 0.28 | 0.097 0.012 | 328 45 | 0 0 |
| Carneros Upper (Ranch 81) | 10/31/26 | 62.6 6.8 | 1613 | 48.3 2.4 | 0409 | 44.1 0.6 | - | - | 4.7 | 20.0 4.3 | 1300 | W | 281 | - | - | - | - | 0 0 |
| Carneros (Mitsuko) | 10/31/26 | 65.0 4.6 | 1354 | 36.3 3.1 | 0449 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 10/31/26 | 63.8 7.8 | 1355 | 38.5 4.0 | 0517 | 31.2 14.6 | 100 7 | 0 42 | 0.4 | 11.4 0.0 | 1337 | NW | 316 | 0.00 | 0.08 | 0.005 0.012 | 0 7 | 0 0 |
| Carneros (Milton Rd) | 10/31/26 | 64.6 4.8 | 1633 | 39.3 3.3 | 0455 | 42.4 1.9 | 93 3 | 41 4 | - | - | - | - | 0.00 | 0.10 | - | - | 0 0 |
| Max | 65.5 | - | 48.4 | - | 45.9 | 100 | 57 | 5.3 | 22.4 | - | - | 0.00 | 0.77 | 0.050 | 188 | - | |
| Avg | - | - | - | - | 41.0 | - | - | 1.9 | - | - | - | - | - | - | - | - | |
| Min | 57.2 | - | 36.0 | - | 24.2 | 85 | 0 | 0.4 | 6.1 | - | - | 0.00 | 0.08 | 0.005 | 0 | - |