| 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 | 9/10/26 | 96.5 2.1 | 1544 | 62.8 3.4 | 2322 | - | - | - | - | - | - | - | 0.00 | 0.82 | - | - | 50 10 |
| Pope Valley (Weeks Lake) | 9/15/26 | 87.9 1.3 | 1543 | 41.0 1.0 | 0644 | 46.2 4.2 | 100 0 | 18 5 | 1.8 0.3 | 13.8 2.2 | 1636 | SW | 227 | 0.00 | 0.03 | 0.162 0.002 | 468 5 | 0 10 |
| Dollarhide Base | 9/15/26 | 91.7 0.2 | 1405 | 49.2 1.7 | 0636 | 51.1 4.9 | 92 3 | 23 7 | 3.1 0.3 | 16.7 0.8 | 1535 | SW | 231 | 0.00 | 0.00 | 0.184 0.001 | 495 19 | 0 10 |
| Dollarhide 1AS Remote | 9/15/26 | 91.3 1.7 | 1334 | 41.1 2.1 | 0515 | 48.0 5.3 | 87 4 | 22 6 | 3.0 1.0 | 14.6 0.4 | 1525 | SW | 222 | - | - | - | - | 0 10 |
| Dollarhide 16A Remote | 9/15/26 | 89.6 2.9 | 1456 | 46.5 0.6 | 0623 | 50.8 4.2 | 93 4 | 26 10 | - | - | - | - | - | - | - | - | 0 10 |
| Dollarhide 18A Remote | 9/15/26 | 88.9 1.9 | 1213 | 39.4 1.9 | 0650 | 47.5 5.2 | 92 3 | 23 7 | - | - | - | - | - | - | - | - | 0 10 |
| Hardin Rd (Eakle) | 9/15/26 | 89.6 0.7 | 1540 | 44.3 1.6 | 0650 | - | - | - | - | - | - | - | - | - | - | - | 0 10 |
| Angwin | 9/15/26 | 80.0 0.1 | 1446 | 50.4 9.7 | 0023 | 44.4 7.2 | 100 51 | 19 1 | 3.9 0.6 | 15.0 3.2 | 1520 | SSE | 158 | 0.00 | 0.30 | 0.066 0.011 | 0 0 | 100 0 |
| Lower Angwin (Pioneer) | 9/15/26 | 80.9 0.7 | 1532 | 42.9 1.1 | 0514 | - | - | - | 2.3 0.1 | 10.9 1.8 | 2358 | W | 263 | - | - | - | - | 100 0 |
| Las Posadas (Cal Fire) | 9/15/26 | 83.4 1.7 | 1455 | 50.0 2.2 | 0534 | 50.2 8.2 | 94 20 | 30 13 | 7.4 1.3 | 18.8 0.4 | 1640 | SSW | 204 | 0.00 | 0.23 | 0.185 0.020 | 474 18 | - |
| Deer Park | 9/15/26 | 84.3 3.9 | 1533 | 52.9 2.0 | 0729 | 52.4 7.5 | 94 18 | 33 17 | 3.3 0.7 | 14.0 2.0 | 1605 | SSE | 156 | 0.00 | 0.04 | 0.137 0.004 | 354 12 | 90 20 |
| Lower Chiles Valley (Brown) | 9/15/26 | 86.9 0.0 | 1544 | 41.7 0.4 | 0530 | 48.1 7.4 | 100 3 | 21 5 | 2.8 0.9 | 14.4 0.4 | 1407 | NW | 311 | 0.00 | 0.14 | 0.171 0.002 | 527 30 | 30 10 |
| Moss Creek Vineyard/Reservior | 9/15/26 | 89.3 0.2 | 1446 | 47.2 1.7 | 0615 | 47.4 3.6 | 90 5 | 20 5 | - | - | - | - | 0.00 | 0.04 | - | - | 0 10 |
| Max | 91.7 | - | 52.9 | - | 52.4 | 100 | 33 | 7.4 | 18.8 | - | - | 0.00 | 0.30 | 0.185 | 527 | - | |
| Avg | - | - | - | - | 48.6 | - | - | 3.4 | - | - | - | - | - | - | - | - | |
| Min | 80.0 | - | 39.4 | - | 44.4 | 87 | 18 | 1.8 | 10.9 | - | - | 0.00 | 0.00 | 0.066 | 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 | 9/15/26 | 91.4 1.0 | 1505 | 45.6 1.9 | 0630 | 51.4 3.7 | 93 0 | 28 7 | - | - | - | - | 0.00 | 0.09 | - | - | 20 10 |
| Diamond Mtn (Schramsberg) | 9/15/26 | 83.7 3.4 | 1614 | 53.2 0.8 | 0546 | 51.9 8.9 | 100 25 | 30 14 | - | - | - | - | 0.00 | 0.13 | - | - | 100 0 |
| Diamond Mtn (McEachran) | 9/15/26 | 85.2 2.6 | 1444 | 51.8 1.5 | 0721 | 51.2 6.9 | 92 16 | 34 19 | - | - | - | - | - | - | - | - | 100 20 |
| St. Helena-North | 9/15/26 | 86.1 4.5 | 1521 | 47.8 0.8 | 0709 | 49.2 6.5 | 85 2 | 29 17 | 3.3 | 17.3 5.9 | 1628 | SE | 139 | 0.00 | 0.11 | 0.167 0.022 | 446 17 | 20 10 |
| St. Helena (NVV Office) | 9/15/26 | 84.4 6.1 | 1527 | 48.9 0.1 | 0657 | - | - | - | 1.6 | 11.9 1.6 | 1316 | ESE | 102 | 0.00 | 0.04 | - | - | 30 20 |
| Tiara Fria (East St. Helena) | 9/15/26 | 82.7 6.5 | 1443 | 46.7 1.2 | 0548 | 50.5 5.5 | 89 0 | 36 19 | 2.3 | 14.0 1.4 | 1608 | SSE | 160 | 0.00 | 0.02 | - | - | 50 20 |
| Prisoner Winery | 9/15/26 | 86.4 4.7 | 1359 | 46.9 0.8 | 0514 | 51.1 5.6 | 94 1 | 32 17 | 1.7 | 10.6 0.1 | 1531 | SSE | 159 | 0.00 | 0.06 | 0.030 0.001 | 0 0 | 0 0 |
| Rutherford Hill Estate | 9/15/26 | 84.4 6.7 | 1455 | 52.6 1.4 | 0708 | 53.0 5.9 | 94 8 | 34 18 | 1.7 | 14.9 4.8 | 1556 | SSE | 154 | 0.00 | 0.08 | 0.139 0.000 | 435 34 | 40 20 |
| Rutherford-North (Mee Ln) | 9/15/26 | 82.8 8.0 | 1445 | 44.8 2.6 | 0525 | 50.3 4.8 | 90 4 | 36 21 | 3.6 | 19.3 5.9 | 1610 | ESE | 123 | 0.00 | 0.06 | 0.158 0.008 | 444 15 | 80 20 |
| Rutherford (STS) | 9/15/26 | 84.9 7.3 | 1502 | 44.4 1.8 | 0446 | 52.7 4.3 | 92 0 | 39 19 | 2.4 | 17.9 5.0 | 1628 | SE | 124 | 0.00 | 0.05 | 0.166 0.003 | 511 11 | 70 20 |
| Oakville-NE (Ranch 88) | 9/15/26 | 82.9 8.4 | 1527 | 43.7 1.6 | 0521 | 48.0 4.7 | 84 3 | 33 20 | 2.6 | 17.4 6.8 | 1604 | SSW | 206 | 0.00 | 0.04 | 0.153 0.007 | 436 0 | 100 0 |
| OV561-East | 9/15/26 | 83.1 6.4 | 1529 | 46.5 1.6 | 0514 | - | - | - | - | - | - | - | - | - | - | - | 20 20 |
| Oakville | 9/15/26 | 80.2 8.7 | 1455 | 44.8 2.2 | 0528 | 50.0 4.5 | 88 3 | 39 23 | 3.9 | 18.8 7.0 | 1553 | SSE | 151 | 0.00 | 0.03 | 0.162 0.007 | 479 19 | 100 10 |
| OV518-West | 9/15/26 | 80.1 7.5 | 1345 | 46.1 2.2 | 0506 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| To Kalon Remote (TKKE) | 9/15/26 | 83.1 7.5 | 1502 | 45.6 0.5 | 0513 | - | - | - | - | - | - | - | - | - | - | - | 100 20 |
| To Kalon | 9/15/26 | 81.2 8.6 | 1454 | 46.5 1.9 | 0524 | 51.4 4.8 | 92 2 | 39 21 | 3.7 | 17.4 6.3 | 1520 | SE | 145 | 0.00 | 0.00 | 0.163 0.000 | 484 3 | 100 20 |
| To Kalon Remote (TKN5) | 9/15/26 | 84.7 5.1 | 1509 | 46.2 1.7 | 0512 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| Yountville (Ranch 67) | 9/15/26 | 78.7 8.2 | 1511 | 44.5 2.2 | 0502 | 49.5 3.6 | 90 1 | 39 22 | 3.9 | 18.7 5.1 | 1558 | SSE | 160 | 0.00 | 0.05 | 0.164 0.012 | 551 0 | 100 10 |
| Stags Leap Dist (Silverado Vineyards) | 9/15/26 | 79.1 9.2 | 1454 | 44.9 1.7 | 0505 | 50.1 3.5 | 93 1 | 39 20 | 2.9 | 18.2 5.7 | 1610 | SSE | 152 | 0.00 | 0.07 | 0.157 0.017 | 483 18 | 90 10 |
| Borreo (Soda Canyon) | 9/15/26 | 77.3 7.5 | 1449 | 47.8 3.3 | 0450 | 50.7 4.1 | 96 1 | 38 15 | 2.0 | 10.6 1.1 | 1404 | SSE | 150 | 0.00 | 0.31 | 0.142 0.015 | 473 6 | 100 0 |
| Wappo Hill Floor | 9/15/26 | 80.2 8.2 | 1445 | 44.3 1.2 | 0514 | 50.5 2.0 | 100 0 | 40 18 | 3.2 | 14.5 1.9 | 1606 | SE | 124 | 0.00 | 0.10 | 0.160 0.013 | 497 13 | 100 20 |
| Stags Leap Dist (Chimney Rock) | 9/15/26 | 78.5 9.3 | 1502 | 43.7 1.0 | 0453 | 52.4 1.6 | 97 1 | 47 19 | 2.9 | 13.4 0.6 | 1621 | SE | 141 | 0.00 | 0.10 | 0.140 0.017 | 451 6 | 100 10 |
| Yountville-South (Ranch 87) | 9/15/26 | 81.6 7.5 | 1440 | 45.5 1.5 | 0431 | 50.9 2.5 | 92 7 | 37 16 | 2.0 | 13.4 0.3 | 1617 | S | 169 | 0.00 | 0.09 | 0.137 0.006 | 421 26 | 70 20 |
| Yountville-SE (Ranch 85) | 9/15/26 | 78.1 9.9 | 1431 | 45.5 1.2 | 0452 | 51.5 2.4 | 93 0 | 43 20 | 3.2 | 14.9 0.3 | 1450 | S | 169 | 0.00 | 0.08 | - | 0 0 | 100 10 |
| Oak Knoll-East (Ranch 53) | 9/15/26 | 78.6 9.0 | 1509 | 46.5 2.4 | 0505 | 50.4 2.8 | 88 3 | 40 19 | 2.5 | 12.1 0.3 | 1443 | S | 180 | 0.00 | 0.15 | 0.159 0.016 | 528 0 | 100 10 |
| Napa-NW (Ranch 54) | 9/15/26 | 80.7 8.9 | 1442 | 48.1 3.5 | 0430 | 50.6 3.6 | 87 4 | 38 19 | 0.6 | 8.2 2.8 | 1154 | S | 186 | 0.00 | 0.18 | - | 0 0 | 100 10 |
| Napa-North (Ranch 29) | 9/15/26 | 77.4 8.1 | 1416 | 46.5 1.9 | 0515 | 52.1 1.8 | 100 0 | 44 18 | 1.7 | 13.4 0.8 | 1536 | S | 183 | 0.00 | 0.10 | 0.101 0.013 | 308 6 | 90 10 |
| Max | 91.4 | - | 53.2 | - | 53.0 | 100 | 47 | 3.9 | 19.3 | - | - | 0.00 | 0.31 | 0.167 | 551 | - | |
| Avg | - | - | - | - | 50.9 | - | - | 2.6 | - | - | - | - | - | - | - | - | |
| Min | 77.3 | - | 43.7 | - | 48.0 | 84 | 28 | 0.6 | 8.2 | - | - | 0.00 | 0.00 | 0.030 | 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 | 9/15/26 | 79.0 2.7 | 1447 | 51.5 8.7 | 0028 | 49.6 9.4 | 94 38 | 36 16 | 1.7 | 11.3 0.6 | 1454 | SSW | 194 | 0.00 | 0.45 | 0.221 0.031 | 916 282 | 100 0 |
| Mount George (Napa East) | 9/15/26 | 77.0 15.0 | 1422 | 47.3 3.8 | 0644 | 51.7 4.1 | 94 1 | 44 16 | 1.6 | 12.0 2.3 | 1522 | W | 260 | 0.00 | 0.16 | 0.150 0.009 | 518 7 | 100 0 |
| Napa-East (Palmaz 300') | 9/15/26 | 81.2 8.3 | 1417 | 50.4 3.8 | 0653 | 52.8 4.0 | 100 0 | 36 14 | 2.1 | 11.1 0.7 | 1531 | WSW | 254 | 0.00 | 0.16 | 0.146 0.007 | 470 8 | 100 10 |
| Napa-East (Palmaz 1200') | 9/14/26 | 80.8 4.1 | 1344 | 47.1 4.1 | 0557 | 46.5 1.6 | 92 8 | 29 22 | 2.4 | 12.0 0.9 | 1614 | SW | 226 | - | - | 0.153 0.004 | 498 20 | 20 20 |
| Napa-East (Palmaz 1400') | 9/15/26 | 77.0 4.7 | 1404 | 48.8 0.5 | 0536 | 52.5 7.0 | 100 6 | 42 13 | 2.9 | 12.6 0.1 | 0018 | SSW | 195 | 0.00 | 0.33 | 0.147 0.016 | 506 6 | 90 10 |
| Wooden Valley | 9/15/26 | 81.6 3.1 | 1429 | 49.4 3.6 | 0206 | 49.3 5.9 | 92 1 | 27 10 | 4.2 | 16.2 0.4 | 2222 | WSW | 252 | 0.00 | 0.04 | 0.172 0.011 | 515 3 | 100 10 |
| Napa-West Upper (Truchard) | 9/15/26 | 78.9 8.9 | 1425 | 51.8 0.5 | 0712 | 23.9 26.3 | 100 0 | 0 19 | 3.3 | 14.2 1.9 | 1558 | SSE | 165 | 0.00 | 0.10 | 0.224 0.128 | 904 495 | 100 10 |
| Napa-West Lower (Truchard) | 9/15/26 | 78.9 8.5 | 1442 | 43.9 2.3 | 0503 | 50.1 3.9 | 97 0 | 40 20 | - | - | - | - | - | - | - | - | 100 10 |
| Napa-South (Toyon Farms) | 9/15/26 | 75.7 8.9 | 1332 | 51.8 1.8 | 0702 | 55.3 2.1 | 100 2 | 51 24 | 3.8 | 13.6 3.4 | 1609 | S | 175 | 0.00 | 0.07 | 0.078 0.028 | 241 8 | 90 10 |
| Toyon Remote 1 | 9/15/26 | 76.2 9.2 | 1410 | 48.5 3.7 | 0419 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 9/15/26 | 75.0 9.0 | 1445 | 48.1 3.8 | 0417 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 9/15/26 | 75.9 10.4 | 1412 | 46.7 2.3 | 0505 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 9/15/26 | 75.3 11.8 | 1353 | 50.6 3.1 | 0705 | 52.4 4.6 | 95 3 | 46 26 | 2.9 | 13.9 1.5 | 1339 | SSE | 164 | 0.00 | 0.08 | 0.148 0.018 | 504 4 | 100 10 |
| Carneros (Saintsbury) | 9/15/26 | 73.9 9.7 | 1442 | 47.1 1.7 | 0522 | 51.9 3.5 | 100 2 | 48 25 | 4.2 | 15.6 1.3 | 1533 | SSW | 193 | 0.00 | 0.08 | - | - | 90 10 |
| Suscol Lower (Ranch 35) | 9/15/26 | 74.9 10.1 | 1449 | 50.4 2.0 | 0645 | 52.9 2.8 | 100 7 | 47 22 | 4.3 | 16.1 0.8 | 1657 | SSE | 154 | 0.00 | 0.15 | 0.142 0.033 | 466 16 | 90 10 |
| Suscol Mtn (Ranch 93) | 9/15/26 | 80.3 7.1 | 1446 | 52.4 2.0 | 0005 | 54.3 3.5 | 97 4 | 44 18 | 3.5 | 14.4 1.8 | 1532 | WNW | 300 | 0.00 | 0.33 | - | - | 80 10 |
| Suscol Upper (Ranch 92) | 9/15/26 | 73.9 9.3 | 1511 | 53.2 1.2 | 0035 | 27.1 23.7 | 100 3 | 0 25 | 2.3 | 12.8 3.2 | 1950 | S | 177 | 0.00 | 0.15 | - | - | 40 10 |
| Stanly (Ranch 45) | 9/15/26 | 74.8 9.4 | 1444 | 50.5 4.5 | 0530 | 52.5 1.3 | 93 2 | 49 23 | 4.8 | 15.9 1.8 | 1506 | S | 188 | 0.00 | 0.15 | 0.148 0.032 | 484 8 | 100 0 |
| Carneros Upper (Ranch 81) | 9/15/26 | 76.7 8.6 | 1431 | 54.4 0.4 | 2252 | 52.9 4.1 | - | - | 6.0 | 17.9 4.8 | 1535 | SSW | 197 | - | - | - | - | 90 10 |
| Carneros (Mitsuko) | 9/15/26 | 74.8 9.7 | 1421 | 43.9 1.6 | 0511 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| Carneros Lower (Ranch 81) | 9/15/26 | 77.6 7.9 | 1402 | 50.5 4.0 | 0424 | 47.8 0.9 | 100 0 | 0 0 | 1.8 | 13.1 0.5 | 1542 | S | 184 | 0.00 | 0.01 | 0.025 0.007 | 0 0 | 90 10 |
| Carneros (Milton Rd) | 9/15/26 | 73.9 9.5 | 1406 | 48.4 4.1 | 2326 | 51.9 2.4 | 94 0 | 51 25 | - | - | - | - | 0.00 | 0.00 | - | - | 90 10 |
| Max | 81.6 | - | 54.4 | - | 55.3 | 100 | 51 | 6.0 | 17.9 | - | - | 0.00 | 0.45 | 0.224 | 916 | - | |
| Avg | - | - | - | - | 48.8 | - | - | 3.3 | - | - | - | - | - | - | - | - | |
| Min | 73.9 | - | 43.9 | - | 23.9 | 92 | 0 | 1.6 | 11.1 | - | - | 0.00 | 0.00 | 0.025 | 0 | - |