| 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 | 9/23/26 | 87.6 7.4 | 1433 | 52.9 3.3 | 0254 | - | - | - | - | - | - | - | 0.00 | 0.82 | - | - | 90 10 |
| Pope Valley (Weeks Lake) | 9/23/26 | 93.8 9.0 | 1457 | 43.0 1.2 | 0642 | 47.8 1.9 | 100 0 | 15 14 | 1.1 0.3 | 10.7 1.3 | 1207 | SSW | 208 | 0.00 | 0.03 | 0.147 0.008 | 444 4 | 50 10 |
| Dollarhide Base | 9/23/26 | 95.8 8.6 | 1643 | 50.2 1.1 | 0649 | 53.1 1.4 | 99 0 | 19 14 | 2.0 0.8 | 12.1 1.8 | 1501 | ESE | 116 | 0.00 | 0.00 | 0.172 0.013 | 474 9 | 40 10 |
| Dollarhide 1AS Remote | 9/23/26 | 95.0 7.0 | 1621 | 43.1 2.0 | 0641 | 49.4 3.0 | 92 1 | 19 13 | 1.3 1.1 | 12.1 3.1 | 1421 | NE | 45 | - | - | - | - | 40 10 |
| Dollarhide 16A Remote | 9/23/26 | 95.1 9.7 | 1422 | 48.8 0.1 | 0618 | 52.8 1.4 | 98 2 | 20 15 | - | - | - | - | - | - | - | - | 70 10 |
| Dollarhide 18A Remote | 9/23/26 | 96.2 10.3 | 1600 | 41.4 2.1 | 0657 | 48.9 2.9 | 96 1 | 20 16 | - | - | - | - | - | - | - | - | 50 10 |
| Hardin Rd (Eakle) | 9/23/26 | 93.9 8.6 | 1547 | 45.8 0.9 | 0715 | - | - | - | - | - | - | - | - | - | - | - | 50 10 |
| Angwin | 9/23/26 | 86.2 10.6 | 1448 | 61.5 5.6 | 0513 | 48.1 1.2 | 64 15 | 21 16 | 3.8 0.3 | 13.3 0.4 | 0905 | N | 0 | 0.00 | 0.30 | 0.058 0.014 | 0 0 | 100 0 |
| Lower Angwin (Pioneer) | 9/23/26 | 87.6 10.1 | 1504 | 51.4 8.9 | 2357 | - | - | - | 2.3 0.8 | 10.6 0.2 | 0916 | NE | 50 | - | - | - | - | 90 10 |
| Las Posadas (Cal Fire) | 9/23/26 | 90.6 11.4 | 1616 | 49.8 2.5 | 0140 | 51.0 1.4 | 99 1 | 20 21 | 4.0 2.8 | 16.3 2.3 | 1435 | SSE | 160 | 0.00 | 0.23 | 0.177 0.031 | 442 0 | - |
| Deer Park | 9/23/26 | 93.7 11.3 | 1545 | 52.2 0.4 | 0729 | 51.9 0.9 | 99 2 | 20 18 | 2.4 0.9 | 12.1 0.3 | 1510 | S | 185 | 0.00 | 0.04 | 0.136 0.027 | 332 22 | 40 10 |
| Lower Chiles Valley (Brown) | 9/23/26 | 92.4 11.7 | 1436 | 43.0 8.2 | 0706 | 49.2 3.4 | 100 0 | 15 23 | 1.4 1.9 | 11.1 3.6 | 1419 | ENE | 61 | 0.00 | 0.14 | 0.168 0.026 | 494 30 | 10 10 |
| Moss Creek Vineyard/Reservior | 9/23/26 | 94.1 6.6 | 1504 | 48.3 0.1 | 0708 | 51.5 0.4 | 97 0 | 20 10 | - | - | - | - | 0.00 | 0.04 | - | - | 20 10 |
| Max | 96.2 | - | 61.5 | - | 53.1 | 100 | 21 | 4.0 | 16.3 | - | - | 0.00 | 0.82 | 0.177 | 494 | - | |
| Avg | - | - | - | - | 50.4 | - | - | 2.3 | - | - | - | - | - | - | - | - | |
| Min | 86.2 | - | 41.4 | - | 47.8 | 64 | 15 | 1.1 | 10.6 | - | - | 0.00 | 0.00 | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calistoga-North | 9/23/26 | 95.6 12.4 | 1341 | 54.1 0.8 | 0754 | 55.1 0.5 | 98 2 | 23 17 | - | - | - | - | 0.00 | 0.09 | - | - | 60 10 |
| Diamond Mtn (Schramsberg) | 9/23/26 | 92.1 9.3 | 1456 | 50.8 0.7 | 0648 | 51.1 0.9 | 100 0 | 20 13 | - | - | - | - | 0.00 | 0.13 | - | - | 80 20 |
| Diamond Mtn (McEachran) | 9/23/26 | 94.7 10.6 | 1451 | 52.6 0.9 | 0647 | 51.6 0.9 | 98 2 | 19 14 | - | - | - | - | - | - | - | - | 80 10 |
| St. Helena-North | 9/23/26 | 95.1 11.7 | 1534 | 55.0 1.1 | 0717 | 50.5 1.0 | 90 4 | 17 18 | 2.0 | 11.0 2.0 | 1339 | SE | 133 | 0.00 | 0.11 | 0.149 0.013 | 411 2 | 30 10 |
| St. Helena (NVV Office) | 9/23/26 | 96.9 14.0 | 1610 | 56.0 1.6 | 0745 | - | - | - | 1.0 | 12.3 2.9 | 1405 | E | 80 | 0.00 | 0.04 | - | - | 40 10 |
| Tiara Fria (East St. Helena) | 9/23/26 | 93.4 13.6 | 1623 | 55.6 1.1 | 0058 | 53.4 0.2 | 94 4 | 21 22 | 1.8 | 8.0 2.2 | 1513 | SE | 142 | 0.00 | 0.02 | - | - | 0 10 |
| Prisoner Winery | 9/23/26 | 96.3 13.2 | 1518 | 55.4 3.2 | 0644 | 53.6 0.6 | 96 1 | 20 18 | 1.2 | 6.6 0.9 | 1726 | E | 85 | 0.00 | 0.06 | 0.023 0.004 | 0 0 | 10 10 |
| Rutherford Hill Estate | 9/23/26 | 94.6 13.3 | 1544 | 54.2 1.6 | 0718 | 53.6 0.2 | 100 7 | 21 20 | 1.3 | 9.4 0.9 | 1255 | SE | 133 | 0.00 | 0.08 | 0.136 0.021 | 410 21 | 10 10 |
| Rutherford-North (Mee Ln) | 9/23/26 | 94.0 14.1 | 1536 | 53.4 3.6 | 0728 | 53.1 0.6 | 94 4 | 22 21 | 2.2 | 11.8 3.7 | 1644 | SE | 127 | 0.00 | 0.06 | 0.151 0.026 | 422 28 | 40 10 |
| Rutherford (STS) | 9/23/26 | 96.0 14.6 | 1527 | 54.0 3.3 | 0057 | 56.2 1.1 | 91 1 | 26 21 | 1.7 | 11.8 0.3 | 1722 | ENE | 67 | 0.00 | 0.05 | 0.159 0.026 | 473 32 | 70 10 |
| Oakville-NE (Ranch 88) | 9/23/26 | 94.5 14.6 | 1540 | 53.0 1.5 | 0055 | 51.8 0.2 | 96 10 | 20 20 | 1.4 | 11.2 2.3 | 1723 | SSE | 168 | 0.00 | 0.04 | 0.141 0.021 | 402 34 | 90 10 |
| OV561-East | 9/23/26 | 97.0 16.4 | 1619 | 55.0 0.5 | 0059 | - | - | - | - | - | - | - | - | - | - | - | 0 10 |
| Oakville | 9/23/26 | 91.9 15.2 | 1555 | 53.6 0.9 | 0044 | 53.4 0.4 | 95 3 | 25 22 | 2.4 | 12.0 3.3 | 1331 | SSE | 166 | 0.00 | 0.03 | 0.155 0.028 | 449 35 | 50 10 |
| OV518-West | 9/23/26 | 90.7 14.2 | 1552 | 55.4 1.0 | 0101 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| To Kalon Remote (TKKE) | 9/23/26 | 95.5 15.5 | 1551 | 54.6 2.5 | 0101 | - | - | - | - | - | - | - | - | - | - | - | 40 10 |
| To Kalon | 9/23/26 | 93.3 15.8 | 1618 | 55.2 3.0 | 0625 | 53.7 0.0 | 97 3 | 23 24 | 2.2 | 10.2 3.9 | 1652 | SE | 145 | 0.00 | 0.00 | 0.153 0.026 | 446 36 | 50 10 |
| To Kalon Remote (TKN5) | 9/23/26 | 94.8 13.3 | 1609 | 55.0 2.1 | 0055 | - | - | - | - | - | - | - | - | - | - | - | 70 10 |
| Yountville (Ranch 67) | 9/23/26 | 90.6 14.9 | 1555 | 53.7 0.9 | 0059 | 52.8 0.5 | 92 5 | 25 21 | 2.3 | 11.5 3.0 | 1530 | S | 182 | 0.00 | 0.05 | 0.155 0.030 | 476 29 | 50 10 |
| Stags Leap Dist (Silverado Vineyards) | 9/23/26 | 92.0 15.9 | 1554 | 53.5 1.3 | 0101 | 52.6 0.0 | 92 3 | 25 21 | 1.8 | 10.4 5.3 | 1611 | S | 171 | 0.00 | 0.07 | 0.152 0.035 | 430 59 | 60 10 |
| Borreo (Soda Canyon) | 9/23/26 | 89.9 15.4 | 1620 | 53.7 2.9 | 0743 | 52.6 0.5 | 97 2 | 27 21 | 1.6 | 12.4 3.6 | 1458 | ESE | 110 | 0.00 | 0.31 | 0.143 0.038 | 447 81 | 70 10 |
| Wappo Hill Floor | 9/23/26 | 93.1 16.1 | 1623 | 54.1 0.8 | 0101 | 53.7 0.0 | 100 5 | 25 22 | 2.0 | 9.7 2.6 | 1306 | SE | 127 | 0.00 | 0.10 | 0.149 0.029 | 446 54 | 60 10 |
| Stags Leap Dist (Chimney Rock) | 9/23/26 | 92.0 16.7 | 1557 | 52.8 1.9 | 0101 | 56.5 1.1 | 95 0 | 33 23 | 1.9 | 9.4 2.1 | 1215 | S | 181 | 0.00 | 0.10 | 0.135 0.031 | 408 52 | 60 10 |
| Yountville-South (Ranch 87) | 9/23/26 | 93.7 15.5 | 1628 | 54.3 0.7 | 0059 | 55.0 0.8 | 100 8 | 25 20 | 1.3 | 8.6 1.1 | 1710 | SW | 215 | 0.00 | 0.09 | 0.131 0.015 | 391 1 | 90 10 |
| Yountville-SE (Ranch 85) | 9/23/26 | 91.7 16.8 | 1549 | 55.1 0.3 | 0038 | 55.0 0.5 | 96 4 | 27 25 | 1.7 | 9.1 3.6 | 1408 | SSE | 168 | 0.00 | 0.08 | - | 0 0 | 60 10 |
| Oak Knoll-East (Ranch 53) | 9/23/26 | 92.8 17.3 | 1630 | 54.3 0.7 | 0059 | 53.6 0.2 | 93 2 | 24 23 | 1.3 | 8.8 4.6 | 1655 | SSW | 194 | 0.00 | 0.15 | 0.147 0.029 | 456 56 | 60 10 |
| Napa-NW (Ranch 54) | 9/23/26 | 93.2 15.7 | 1606 | 54.8 0.4 | 0729 | 53.5 0.0 | 94 3 | 25 21 | 0.8 | 6.5 0.2 | 1700 | SSW | 206 | 0.00 | 0.18 | - | 0 0 | 90 10 |
| Napa-North (Ranch 29) | 9/23/26 | 91.1 16.6 | 1559 | 54.8 2.6 | 0044 | 55.4 0.7 | 100 0 | 29 21 | 1.4 | 11.1 0.8 | 1539 | SSW | 196 | 0.00 | 0.10 | 0.106 0.018 | 288 9 | 60 10 |
| Max | 97.0 | - | 56.0 | - | 56.5 | 100 | 33 | 2.4 | 12.4 | - | - | 0.00 | 0.31 | 0.159 | 476 | - | |
| Avg | - | - | - | - | 53.5 | - | - | 1.7 | - | - | - | - | - | - | - | - | |
| Min | 89.9 | - | 50.8 | - | 50.5 | 90 | 17 | 0.8 | 6.5 | - | - | 0.00 | 0.00 | 0.023 | 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 | 9/23/26 | 86.1 10.7 | 1404 | 55.9 7.5 | 0101 | 50.5 1.5 | 88 11 | 26 20 | 2.0 | 10.3 1.2 | 1513 | SSE | 161 | 0.00 | 0.45 | 0.269 0.063 | 1,045 | 90 20 |
| Mount George (Napa East) | 9/23/26 | 118.6 41.9 | 1140 | 54.7 1.1 | 0058 | 57.5 3.0 | 99 6 | 28 23 | 1.1 | 9.7 0.8 | 1657 | ESE | 115 | 0.00 | 0.16 | 0.150 0.040 | 472 76 | 60 10 |
| Napa-East (Palmaz 300') | 9/22/26 | 78.4 4.8 | 1359 | 53.8 1.8 | 0721 | 53.4 0.0 | 100 0 | 42 9 | 1.0 | 10.4 1.1 | 1141 | SW | 222 | 0.00 | 0.16 | 0.107 0.031 | 355 94 | 60 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') | 9/23/26 | 85.8 13.5 | 1332 | 48.6 1.3 | 0505 | 53.1 0.0 | 100 0 | 34 19 | 2.5 | 11.5 0.7 | 1022 | NNE | 25 | 0.00 | 0.33 | 0.158 0.051 | 474 61 | 60 10 |
| Wooden Valley | 9/23/26 | 90.4 13.8 | 1545 | 42.8 8.7 | 0710 | 49.2 2.8 | 97 1 | 22 21 | 1.4 | 9.9 4.3 | 1439 | ESE | 118 | 0.00 | 0.04 | 0.155 0.021 | 468 0 | 60 10 |
| Napa-West Upper (Truchard) | 9/23/26 | 93.9 19.2 | 1614 | 55.5 2.7 | 0735 | 40.4 10.5 | 100 0 | 0 0 | 1.5 | 12.3 2.0 | 1707 | S | 169 | 0.00 | 0.10 | 0.596 0.104 | - | 50 10 |
| Napa-West Lower (Truchard) | 9/23/26 | 94.6 20.1 | 1627 | 51.4 2.1 | 0101 | 52.3 0.0 | 90 2 | 23 26 | - | - | - | - | - | - | - | - | 50 10 |
| Napa-South (Toyon Farms) | 9/23/26 | 92.6 19.6 | 1611 | 57.2 2.5 | 0800 | 57.4 1.8 | 96 1 | 33 26 | 2.1 | 10.6 3.4 | 1508 | SSE | 168 | 0.00 | 0.07 | 0.090 0.022 | 226 3 | 40 10 |
| Toyon Remote 1 | 9/23/26 | 91.2 18.4 | 1608 | 53.1 1.3 | 0057 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 9/23/26 | 91.6 19.7 | 1612 | 53.8 0.7 | 0059 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 9/23/26 | 91.9 19.4 | 1543 | 53.8 1.7 | 0057 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 9/23/26 | 92.5 19.9 | 1615 | 55.6 1.9 | 0039 | 53.2 0.0 | 93 1 | 24 29 | 1.8 | 9.2 4.8 | 1205 | SSE | 153 | 0.00 | 0.08 | 0.141 0.031 | 447 55 | 60 10 |
| Carneros (Saintsbury) | 9/23/26 | 90.3 19.8 | 1600 | 53.4 1.9 | 0827 | 53.3 0.4 | 99 3 | 27 30 | 2.4 | 10.8 4.9 | 1703 | SSE | 166 | 0.00 | 0.08 | - | - | 40 10 |
| Suscol Lower (Ranch 35) | 9/23/26 | 90.0 18.1 | 1632 | 56.6 2.5 | 0718 | 53.4 0.2 | 91 0 | 27 27 | 3.1 | 11.0 2.8 | 1653 | SSW | 198 | 0.00 | 0.15 | 0.151 0.047 | 436 87 | 40 10 |
| Suscol Mtn (Ranch 93) | 9/23/26 | 90.3 16.4 | 1545 | 52.5 1.8 | 0744 | 53.4 0.3 | 100 0 | 28 28 | 2.9 | 12.0 3.7 | 1713 | NW | 305 | 0.07 | 0.40 | - | - | 30 10 |
| Suscol Upper (Ranch 92) | 9/23/26 | 88.2 16.8 | 1658 | 53.3 1.9 | 0733 | 14.1 1.2 | 100 0 | 0 0 | 1.1 | 10.3 1.5 | 1443 | SSW | 206 | 0.00 | 0.15 | - | - | 0 0 |
| Stanly (Ranch 45) | 9/23/26 | 88.8 17.7 | 1656 | 54.6 1.3 | 0039 | 54.7 1.6 | 90 0 | 30 26 | 2.8 | 11.0 3.3 | 1557 | S | 170 | 0.00 | 0.15 | 0.164 0.050 | 475 82 | 50 10 |
| Carneros Upper (Ranch 81) | 9/23/26 | 90.9 17.4 | 1556 | 55.4 1.9 | 0754 | 41.4 9.7 | - | - | 3.5 | 16.4 1.1 | 1818 | W | 264 | - | - | - | - | 40 10 |
| Carneros (Mitsuko) | 9/23/26 | 91.6 20.3 | 1532 | 50.0 4.0 | 0042 | - | - | - | - | - | - | - | - | - | - | - | 40 10 |
| Carneros Lower (Ranch 81) | 9/23/26 | 95.3 21.8 | 1529 | 55.6 1.3 | 0059 | 54.0 0.1 | 92 0 | 23 31 | 0.8 | 7.8 4.4 | 1433 | SSE | 163 | 0.00 | 0.01 | 0.019 0.002 | 12 6 | 40 10 |
| Carneros (Milton Rd) | 9/23/26 | 90.7 20.0 | 1558 | 52.9 2.5 | 0101 | 53.9 0.1 | 88 1 | 27 30 | - | - | - | - | 0.00 | 0.00 | - | - | 40 10 |
| Max | 118.6 | - | 57.2 | - | 57.5 | 100 | 34 | 3.5 | 16.4 | - | - | 0.07 | 0.45 | 0.596 | 1,045 | - | |
| Avg | - | - | - | - | 49.5 | - | - | 2.1 | - | - | - | - | - | - | - | - | |
| Min | 85.8 | - | 42.8 | - | 14.1 | 88 | 0 | 0.8 | 7.8 | - | - | 0.00 | 0.00 | 0.019 | 12 | - |