| 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 | 5/23/26 | 71.5 11.8 | 1416 | 43.4 6.2 | 0455 | - | - | - | - | - | - | - | 0.00 | 50.09 | - | - | 90 10 |
| Pope Valley (Weeks Lake) | 5/23/26 | 78.0 10.1 | 1601 | 44.6 0.5 | 0552 | 49.3 1.2 | 100 0 | 36 14 | 2.6 0.4 | 14.2 1.1 | 1359 | ESE | 113 | 0.00 | 26.24 | 0.184 0.031 | 606 14 | 80 20 |
| Dollarhide Base | 5/23/26 | 79.7 9.3 | 1510 | 50.7 1.0 | 0532 | 53.1 0.7 | 95 4 | 46 14 | 5.6 1.6 | 19.0 1.2 | 1650 | SW | 225 | 0.00 | 23.14 | 0.215 0.038 | 701 10 | 80 20 |
| Dollarhide 1AS Remote | 5/23/26 | 80.5 8.2 | 1512 | 51.0 5.2 | 0501 | 52.4 1.1 | 92 1 | 43 11 | 5.4 2.2 | 17.5 1.8 | 1604 | SW | 229 | - | - | - | - | 80 20 |
| Dollarhide 16A Remote | 5/23/26 | 78.6 9.1 | 1611 | 50.9 0.4 | 0545 | 52.9 1.1 | 95 2 | 47 13 | - | - | - | - | - | - | - | - | 80 20 |
| Dollarhide 18A Remote | 5/23/26 | 78.0 10.3 | 1600 | 50.4 7.3 | 0538 | 52.0 1.9 | 92 3 | 46 15 | - | - | - | - | - | - | - | - | 80 20 |
| Hardin Rd (Eakle) | 5/23/26 | 79.8 8.2 | 1525 | 51.8 3.4 | 0503 | - | - | - | - | - | - | - | - | - | - | - | 80 20 |
| Angwin | 5/23/26 | 68.2 9.4 | 1442 | 45.9 10.9 | 0532 | 47.7 3.9 | 100 28 | 51 30 | 2.5 0.3 | 14.3 1.3 | 1657 | SE | 138 | 0.00 | 45.12 | 0.024 0.029 | 0 0 | 90 10 |
| Lower Angwin (Pioneer) | 5/23/26 | 71.4 8.0 | 1515 | 47.0 2.2 | 2340 | - | - | - | 3.7 1.1 | 16.2 2.3 | 1604 | WNW | 291 | - | - | - | - | 90 10 |
| Las Posadas (Cal Fire) | 5/23/26 | 72.9 7.5 | 1528 | 48.4 0.2 | 0527 | 50.0 0.0 | 98 2 | 49 9 | 8.8 0.5 | 23.9 2.4 | 0033 | SW | 231 | 0.00 | 34.50 | 0.167 0.056 | 578 38 | - |
| Deer Park | 5/23/26 | 75.4 8.0 | 1506 | 50.8 0.1 | 0440 | 50.7 0.5 | 94 2 | 45 8 | 5.8 1.7 | 15.4 0.2 | 1743 | NW | 320 | 0.00 | 28.72 | 0.138 0.027 | 415 48 | 90 10 |
| Lower Chiles Valley (Brown) | 5/23/26 | 75.6 7.1 | 1504 | 51.4 1.7 | 0605 | 51.1 0.3 | 92 8 | 44 7 | 4.4 0.3 | 16.8 1.3 | 1534 | WNW | 288 | 0.00 | 25.89 | 0.177 0.030 | 616 54 | 90 10 |
| Moss Creek Vineyard/Reservior | 5/23/26 | 77.4 11.7 | 1448 | 47.7 2.3 | 0502 | 50.1 0.5 | 98 7 | 37 12 | - | - | - | - | 0.00 | 27.05 | - | - | 50 20 |
| Max | 80.5 | - | 51.8 | - | 53.1 | 100 | 51 | 8.8 | 23.9 | - | - | 0.00 | 50.09 | 0.215 | 701 | - | |
| Avg | - | - | - | - | 50.9 | - | - | 4.9 | - | - | - | - | - | - | - | - | |
| Min | 68.2 | - | 43.4 | - | 47.7 | 92 | 36 | 2.5 | 14.2 | - | - | 0.00 | 23.14 | 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 | 5/23/26 | 77.6 18.0 | 1502 | 52.6 5.4 | 0602 | 52.4 1.3 | 93 2 | 46 30 | - | - | - | - | 0.00 | 32.79 | - | - | 50 10 |
| Diamond Mtn (Schramsberg) | 5/23/26 | 75.8 8.0 | 1516 | 50.4 0.9 | 0554 | 51.4 0.6 | 100 0 | 45 12 | - | - | - | - | 0.00 | 31.20 | - | - | 90 10 |
| Diamond Mtn (McEachran) | 5/23/26 | 74.5 8.9 | 1526 | 51.7 0.6 | 0607 | 50.8 0.4 | 94 4 | 47 9 | - | - | - | - | - | - | - | - | 80 10 |
| St. Helena-North | 5/23/26 | 80.5 7.4 | 1510 | 53.9 1.1 | 0602 | 49.6 0.2 | 81 6 | 35 6 | 2.4 | 12.1 0.4 | 1526 | W | 281 | 0.00 | 31.03 | 0.163 0.021 | 515 39 | 80 20 |
| St. Helena (NVV Office) | 5/23/26 | 79.7 6.1 | 1601 | 54.4 1.8 | 0530 | - | - | - | 2.0 | 10.0 0.1 | 1357 | NW | 319 | 0.00 | 28.47 | - | - | 100 10 |
| Tiara Fria (East St. Helena) | 5/23/26 | 77.6 4.4 | 1453 | 54.4 2.6 | 0556 | 51.1 0.2 | 84 5 | 42 9 | 3.8 | 13.9 0.3 | 1740 | NNE | 25 | 0.00 | 26.44 | - | - | 100 10 |
| Rutherford Hill Estate | 5/23/26 | 78.6 3.1 | 1432 | 51.8 1.9 | 0008 | 51.8 0.1 | 90 2 | 43 2 | 1.9 | 17.1 4.4 | 1613 | S | 170 | 0.00 | 25.00 | 0.158 0.018 | 522 57 | 100 10 |
| Rutherford-North (Mee Ln) | 5/23/26 | 76.2 4.7 | 1424 | 52.2 3.1 | 2307 | 51.7 0.4 | 90 2 | 45 1 | 3.8 | 14.9 1.8 | 1655 | SE | 134 | 0.00 | 24.52 | 0.165 0.021 | 515 54 | 80 10 |
| Rutherford (STS) | 5/23/26 | 78.9 3.7 | 1411 | 50.9 1.5 | 2319 | 53.9 0.8 | 92 0 | 49 3 | 2.7 | 13.2 2.0 | 1627 | SE | 132 | 0.00 | 25.82 | 0.183 0.017 | 609 48 | 100 10 |
| Oakville-NE (Ranch 88) | 5/23/26 | 77.3 3.6 | 1349 | 51.7 1.4 | 2321 | 50.4 0.3 | 87 1 | 40 0 | 2.8 | 16.4 0.2 | 1618 | SSE | 148 | 0.00 | 24.92 | 0.163 0.017 | 508 48 | 100 0 |
| OV561-East | 5/23/26 | 76.7 4.8 | 1536 | 53.6 2.7 | 2336 | - | - | - | - | - | - | - | - | - | - | - | 100 20 |
| Oakville | 5/23/26 | 75.2 3.5 | 1342 | 53.8 4.0 | 2328 | 51.1 0.5 | 89 3 | 45 1 | 3.4 | 17.7 0.5 | 1626 | SE | 128 | 0.00 | 25.51 | 0.181 0.019 | 600 58 | 80 10 |
| OV518-West | 5/23/26 | 74.9 3.4 | 1405 | 54.0 4.3 | 2335 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| To Kalon Remote (TKKE) | 5/23/26 | 78.1 3.6 | 1345 | 53.3 3.5 | 2324 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| To Kalon | 5/23/26 | 75.6 3.4 | 1350 | 52.8 3.9 | 2340 | 52.1 0.8 | 93 3 | 46 3 | 3.4 | 16.3 0.0 | 1605 | ESE | 122 | 0.00 | 27.70 | 0.169 0.018 | 530 60 | 80 10 |
| To Kalon Remote (TKN5) | 5/23/26 | 77.5 4.9 | 1402 | 53.9 3.5 | 2329 | - | - | - | - | - | - | - | - | - | - | - | 100 10 |
| Yountville (Ranch 67) | 5/23/26 | 72.9 3.9 | 1321 | 52.9 3.3 | 2358 | 49.9 0.1 | 86 5 | 45 0 | 3.8 | 18.9 2.1 | 1512 | E | 90 | 0.00 | 23.62 | 0.183 0.013 | 637 50 | 80 10 |
| Stags Leap Dist (Silverado Vineyards) | 5/23/26 | 73.6 3.0 | 1613 | 53.1 3.4 | 0005 | 50.3 0.0 | 88 3 | 46 1 | 2.7 | 15.5 3.1 | 1406 | SSE | 156 | 0.00 | 27.62 | 0.172 0.018 | 571 54 | 60 10 |
| Borreo (Soda Canyon) | 5/23/26 | 70.7 4.3 | 1253 | 46.6 1.0 | 0030 | 49.6 0.3 | 96 0 | 47 1 | 2.0 | 11.5 0.3 | 1619 | SSE | 160 | 0.00 | 27.52 | 0.173 0.016 | 614 53 | 60 10 |
| Wappo Hill Floor | 5/23/26 | 74.3 3.8 | 1515 | 52.8 2.6 | 0101 | 51.1 0.0 | 88 6 | 47 0 | 3.6 | 16.2 1.8 | 1428 | ESE | 112 | 0.00 | 26.75 | 0.184 0.009 | 608 35 | 80 10 |
| Stags Leap Dist (Chimney Rock) | 5/23/26 | 72.7 4.5 | 1459 | 53.3 2.5 | 0104 | 52.8 0.0 | 92 3 | 53 0 | 3.6 | 15.9 1.5 | 1515 | SE | 133 | 0.00 | 26.14 | 0.161 0.011 | 540 34 | 50 10 |
| Yountville-South (Ranch 87) | 5/23/26 | 75.4 3.3 | 1551 | 51.9 1.7 | 0006 | 51.8 0.0 | 92 1 | 48 1 | 2.4 | 15.5 1.5 | 1357 | ESE | 111 | 0.00 | 27.39 | 0.181 0.010 | 617 33 | 100 20 |
| Yountville-SE (Ranch 85) | 5/23/26 | 72.7 4.0 | 1307 | 52.8 2.4 | 0101 | 51.7 0.0 | 91 2 | 50 1 | 3.6 | 17.0 2.2 | 1457 | SSE | 158 | 0.00 | 25.69 | - | 0 0 | 50 10 |
| Oak Knoll-East (Ranch 53) | 5/23/26 | 74.1 2.9 | 1535 | 51.6 1.6 | 0117 | 50.8 0.0 | 91 0 | 47 0 | 2.9 | 15.4 0.4 | 1516 | SE | 138 | 0.00 | 24.30 | 0.186 0.004 | 637 16 | 100 10 |
| Napa-NW (Ranch 54) | 5/23/26 | 77.8 2.5 | 1343 | 51.4 2.4 | 0125 | 50.8 0.1 | 91 0 | 39 1 | 1.0 | 9.3 1.4 | 1302 | S | 184 | 0.00 | 26.77 | - | 0 0 | 100 10 |
| Napa-North (Ranch 29) | 5/23/26 | 70.6 3.6 | 1612 | 52.9 1.9 | 0032 | 51.0 0.5 | 90 10 | 51 0 | 2.7 | 17.1 4.0 | 1700 | SSW | 213 | 0.00 | 25.18 | 0.132 0.001 | 433 8 | 50 10 |
| Max | 80.5 | - | 54.4 | - | 53.9 | 100 | 53 | 3.8 | 18.9 | - | - | 0.00 | 32.79 | 0.186 | 637 | - | |
| Avg | - | - | - | - | 51.2 | - | - | 2.9 | - | - | - | - | - | - | - | - | |
| Min | 70.6 | - | 46.6 | - | 49.6 | 81 | 35 | 1.0 | 9.3 | - | - | 0.00 | 23.62 | 0.132 | 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 | 5/23/26 | 73.2 7.5 | 1518 | 47.9 1.0 | 0619 | 49.6 1.4 | 96 7 | 47 12 | 1.2 | 8.2 1.4 | 1206 | E | 88 | 0.00 | 34.19 | 0.148 0.024 | 516 68 | 80 10 |
| Mount George (Napa East) | 5/23/26 | 70.3 4.3 | 1555 | 52.2 1.2 | 0040 | 51.1 0.4 | 90 2 | 53 3 | 2.5 | 13.4 2.5 | 1250 | SE | 127 | 0.00 | 17.04 | 0.166 0.013 | 602 44 | 50 10 |
| Napa-East (Palmaz 300') | 5/23/26 | 73.3 3.6 | 1520 | 52.2 1.2 | 0031 | 50.9 0.1 | 90 2 | 48 2 | 2.8 | 14.3 0.4 | 1420 | SW | 234 | 0.00 | 23.29 | 0.160 0.003 | 534 7 | 50 10 |
| Napa-East (Palmaz 1200') | 5/20/26 | 83.1 2.3 | 1549 | 49.6 2.8 | 0543 | 44.2 13.7 | 74 19 | 19 10 | 2.5 | 11.6 2.3 | 1413 | NNW | 333 | - | - | 0.212 0.024 | 676 30 | 100 10 |
| Napa-East (Palmaz 1400') | 5/23/26 | 66.3 5.8 | 1440 | 48.5 3.0 | 0054 | 50.7 0.6 | 100 0 | 60 7 | 3.8 | 14.9 0.4 | 1407 | SSW | 203 | 0.00 | 30.80 | 0.150 0.033 | 578 98 | 80 10 |
| Wooden Valley | 5/23/26 | 69.9 6.1 | 1511 | 51.4 0.5 | 0042 | 49.9 0.9 | 90 4 | 53 9 | 4.6 | 15.7 0.4 | 1634 | S | 178 | 0.00 | 29.11 | 0.182 0.028 | 685 16 | 90 10 |
| Napa-West Upper (Truchard) | 5/23/26 | 71.6 2.3 | 1532 | 50.9 4.5 | 0026 | 49.7 29.6 | 100 0 | 0 0 | 5.8 | 20.6 2.7 | 1338 | SSE | 155 | 0.00 | 24.41 | 0.176 0.016 | 593 51 | 50 10 |
| Napa-West Lower (Truchard) | 5/23/26 | 72.4 2.8 | 1541 | 49.7 5.2 | 2322 | 51.2 1.2 | 92 8 | 48 1 | - | - | - | - | - | - | - | - | 70 10 |
| Napa-South (Toyon Farms) | 5/23/26 | 70.1 2.0 | 1531 | 51.7 4.1 | 0023 | 53.0 0.6 | 96 4 | 60 3 | 4.7 | 20.5 3.8 | 1511 | SSE | 164 | 0.00 | 18.34 | 0.098 0.008 | 355 17 | 70 10 |
| Toyon Remote 1 | 5/23/26 | 71.8 2.1 | 1202 | 48.9 4.9 | 0050 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 5/23/26 | 70.1 2.5 | 1431 | 52.4 4.7 | 0034 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 5/23/26 | 71.7 4.0 | 1635 | 50.1 3.9 | 0022 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 5/23/26 | 71.5 2.8 | 1540 | 52.2 6.3 | 0018 | 50.6 0.8 | 88 7 | 48 1 | 3.1 | 15.1 1.0 | 1400 | SE | 142 | 0.00 | 23.58 | 0.171 0.012 | 599 69 | 70 10 |
| Carneros (Saintsbury) | 5/23/26 | 69.0 3.8 | 1635 | 51.1 5.4 | 0031 | 50.9 0.7 | 90 10 | 53 3 | 6.8 | 23.5 5.2 | 1455 | S | 172 | 0.00 | 8.68 | - | - | 80 10 |
| Suscol Lower (Ranch 35) | 5/23/26 | 70.1 3.0 | 1408 | 51.4 2.0 | 0013 | 50.7 0.4 | - | - | 6.3 | 20.7 3.5 | 1515 | S | 189 | 0.00 | 22.84 | 0.155 0.010 | 524 48 | 80 10 |
| Suscol Mtn (Ranch 93) | 5/23/26 | 72.7 3.8 | 1342 | 49.3 2.2 | 0037 | 51.7 0.1 | 98 2 | 56 4 | 9.3 | 20.5 4.3 | 0244 | NNW | 328 | 0.00 | 18.60 | - | - | 50 10 |
| Suscol Upper (Ranch 92) | 5/23/26 | 66.7 5.2 | 1536 | 50.1 2.7 | 0032 | 45.2 0.1 | 100 0 | 3 0 | 7.2 | 20.9 5.3 | 1256 | SW | 220 | 0.00 | 22.35 | - | - | 80 10 |
| Stanly (Ranch 45) | 5/23/26 | 70.4 3.2 | 1435 | 52.3 4.5 | 0033 | 51.1 0.7 | 87 4 | 52 0 | 7.6 | 22.2 2.8 | 1445 | SW | 216 | 0.00 | 22.49 | 0.179 0.015 | 618 70 | 70 10 |
| Carneros Upper (Ranch 81) | 5/23/26 | 71.5 2.3 | 1714 | 51.8 4.9 | 0011 | 50.3 14.8 | - | - | 8.8 | 20.5 2.8 | 2325 | WSW | 251 | - | - | - | - | 80 10 |
| Carneros (Mitsuko) | 5/23/26 | 70.3 2.0 | 1558 | 52.0 7.1 | 0023 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| Carneros Lower (Ranch 81) | 5/23/26 | 71.1 3.8 | 1252 | 52.0 5.4 | 0019 | 51.9 1.1 | 91 3 | 52 4 | 1.7 | 17.1 3.7 | 1632 | SSE | 162 | 0.00 | 19.42 | 0.147 0.007 | 506 48 | 80 10 |
| Carneros (Milton Rd) | 5/23/26 | 68.2 3.3 | 1525 | 52.5 7.7 | 0022 | 51.3 0.8 | 89 5 | 57 0 | - | - | - | - | 0.00 | 18.07 | - | - | 80 10 |
| Max | 73.3 | - | 52.5 | - | 53.0 | 100 | 60 | 9.3 | 23.5 | - | - | 0.00 | 34.19 | 0.182 | 685 | - | |
| Avg | - | - | - | - | 50.6 | - | - | 5.1 | - | - | - | - | - | - | - | - | |
| Min | 66.3 | - | 47.9 | - | 45.2 | 87 | 0 | 1.2 | 8.2 | - | - | 0.00 | 8.68 | 0.098 | 355 | - |