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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 5/21/26 12:04 AM PDT
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 5/19/26 82.2   4.5 1635 47.4   0.8 0628 - - - - - - - 0.00 50.09 - - 100   0
Pope Valley (Weeks Lake) 5/19/26 87.3   5.0 1704 37.0   7.6 0434 35.3   11.9 96   24 9   4 2.1   2.9 15.3   6.8 1159 ENE | 58 0.00 26.24 0.225   0.035 640   13 90   10
Dollarhide Base 5/19/26 89.0   6.4 1740 44.4   9.3 0501 38.5   10.8 91   38 12   6 3.4   5.4 23.1   8.7 1210 NE | 39 0.00 23.14 0.268   0.062 734   12 90   10
Dollarhide 1AS Remote 5/19/26 90.5   6.9 1651 36.6   6.2 0535 39.3   10.1 94   6 11   5 2.0   4.9 22.2   3.7 1211 E | 82 - - - - 90   10
Dollarhide 16A Remote 5/19/26 90.1   6.7 1632 41.9   8.0 0607 39.5   10.2 95   30 13   6 - - - - - - - - 90   10
Dollarhide 18A Remote 5/19/26 90.9   6.1 1817 34.3   6.1 0546 37.7   8.0 96   10 12   5 - - - - - - - - 90   10
Hardin Rd (Eakle) 5/19/26 89.5   6.0 1500 39.8   7.5 0558 - - - - - - - - - - - 90   10
Angwin 5/19/26 81.0   6.1 1616 59.7   6.6 0544 24.4   7.1 27   3 9   6 5.3   4.8 18.0   11.6 1230 NNW | 344 0.00 45.12 0.115   0.050 0   0 100   0
Lower Angwin (Pioneer) 5/19/26 82.5   4.7 1707 48.0   0.3 0102 - - - 2.8   2.1 13.3   11.6 1257 NNW | 342 - - - - 100   0
Las Posadas (Cal Fire) 5/19/26 85.2   5.7 1631 55.7   2.5 0508 28.9   8.4 45   15 10   7 7.3   8.2 25.4   14.5 1236 NE | 38 0.00 34.50 0.302   0.047 630   15 -
Deer Park 5/19/26 88.3   5.1 1602 60.0   1.4 0200 28.0   6.6 32   4 8   5 5.5   1.0 19.6   11.9 0803 NNE | 12 0.00 28.72 0.262   0.002 492   15 100   0
Lower Chiles Valley (Brown) 5/19/26 86.6   6.0 1722 37.2   3.5 0506 34.0   7.3 88   6 9   2 2.6   4.3 16.4   16.6 1509 E | 99 0.00 25.89 0.246   0.037 703   16 100   0
Moss Creek Vineyard/Reservior 5/19/26 87.1   5.2 1653 41.8   6.8 0517 33.8   7.0 91   17 7   1 - - - - 0.00 27.05 - - 60   20
Max   90.9 - 60.0 - 39.5 96 13 7.3 25.4 - - 0.00 50.09 0.302 734 -
Avg   - - - - 33.9 - - 3.9 - - - - - - - -
Min   81.0 - 34.3 - 24.4 27 7 2.0 13.3 - - 0.00 23.14 0.115 0 -

Northern & Central Napa County

26 Stations

Daily Data | America/Los_Angeles
as of 5/21/26 12:04 AM PDT
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 5/18/26 88.5   11.5 1545 49.6   5.1 0059 28.8   5.5 65   21 6   9 - - - - 0.00 32.79 - - 80   10
Diamond Mtn (Schramsberg) 5/19/26 87.5   4.2 1613 64.2   4.3 0105 26.9   4.8 29   3 9   5 - - - - 0.00 31.20 - - 100   0
Diamond Mtn (McEachran) 5/19/26 89.4   4.5 1638 57.9   1.8 0317 28.8   7.1 39   4 8   4 - - - - - - - - 90   10
St. Helena-North 5/19/26 92.6   4.6 1529 47.4   6.1 0607 29.3   9.9 64   19 5   4 1.7 11.6   7.0 1659 S | 191 0.00 31.03 0.205   0.004 588   13 90   10
St. Helena (NVV Office) 5/19/26 93.0   5.7 1614 47.9   7.3 0510 - - - 1.7 13.4   10.1 1522 ENE | 66 0.00 28.47 - - 90   10
Tiara Fria (East St. Helena) 5/19/26 90.4   4.2 1702 45.4   5.7 0507 33.9   11.7 76   15 8   5 2.5 17.4   7.7 1235 ENE | 59 0.00 26.44 - - 90   10
Rutherford Hill Estate 5/19/26 91.8   4.7 1642 58.2   2.3 0245 31.0   8.3 38   9 9   5 2.1 15.1   10.1 1741 W | 274 0.00 25.00 0.216   0.007 606   16 90   10
Rutherford-North (Mee Ln) 5/19/26 90.8   4.4 1706 45.1   1.8 0545 38.1   9.6 84   7 9   3 2.5 16.2   9.2 1318 NW | 321 0.00 24.52 0.228   0.015 620   14 90   10
Rutherford (STS) 5/19/26 90.5   5.4 1516 46.7   2.4 0550 39.6   7.9 78   5 13   5 3.2 15.5   10.4 1744 W | 277 0.00 25.82 0.262   0.031 722   15 90   10
Oakville-NE (Ranch 88) 5/19/26 91.5   5.5 1616 43.0   3.3 0524 33.6   11.8 79   8 6   4 2.3 16.7   7.9 1253 NNE | 28 0.00 24.92 0.232   0.051 622   25 90   10
OV561-East 5/19/26 93.3   3.5 1647 46.8   3.1 0433 - - - - - - - - - - - 80   10
Oakville 5/19/26 90.1   4.8 1625 42.6   4.1 0521 35.5   10.7 86   6 7   4 3.4 15.8   11.0 1401 N | 349 0.00 25.51 0.266   0.043 706   21 90   10
OV518-West 5/19/26 89.0   3.7 1653 46.5   3.5 0504 - - - - - - - - - - - 90   10
To Kalon Remote (TKKE) 5/19/26 94.0   5.9 1641 44.8   3.5 0521 - - - - - - - - - - - 90   10
To Kalon 5/19/26 90.9   4.2 1643 45.2   4.7 0456 34.6   9.9 75   15 9   5 2.9 18.2   4.7 1353 ENE | 61 0.00 27.70 0.250   0.047 646   17 90   10
To Kalon Remote (TKN5) 5/19/26 91.4   5.3 1547 43.3   5.9 0502 - - - - - - - - - - - 90   10
Yountville (Ranch 67) 5/19/26 89.3   5.1 1638 46.2   4.5 0615 32.1   9.5 77   16 7   3 3.4 17.5   16.4 1407 NNW | 348 0.00 23.62 0.268   0.053 728   12 90   10
Stags Leap Dist (Silverado Vineyards) 5/19/26 89.4   5.6 1622 47.2   3.3 0607 33.2   10.1 80   19 7   3 1.8 17.3   12.2 1218 NNW | 336 0.00 27.62 0.239   0.060 696   15 100   0
Borreo (Soda Canyon) 5/19/26 88.1   4.6 1643 52.2   8.8 0059 27.6   6.3 61   34 7   1 3.5 14.7   12.7 1146 NW | 309 0.00 27.52 0.275   0.022 727   15 100   0
Wappo Hill Floor 5/19/26 92.5   6.6 1703 50.7   5.8 0031 32.7   9.8 78   34 7   3 4.1 18.0   14.8 1223 NNE | 25 0.00 26.75 0.287   0.068 708   16 90   10
Stags Leap Dist (Chimney Rock) 5/19/26 89.3   4.3 1645 47.2   4.3 0607 39.7   7.5 86   12 14   3 3.7 18.5   13.9 1214 NW | 325 0.00 26.14 0.250   0.051 632   13 90   10
Yountville-South (Ranch 87) 5/19/26 91.2   3.8 1658 51.6   5.9 0059 34.8   10.5 80   36 8   4 2.4 13.0   8.2 1243 NE | 38 0.00 27.39 0.252   0.005 718   23 80   10
Yountville-SE (Ranch 85) 5/19/26 90.4   5.1 1712 52.2   1.6 0506 34.6   9.9 78   26 8   4 3.4 16.9   13.0 1252 N | 1 0.00 25.69 - 0   0 90   10
Oak Knoll-East (Ranch 53) 5/19/26 91.9   4.9 1614 45.0   5.2 0524 34.1   10.1 81   14 7   2 2.4 18.3   8.0 1300 NNW | 346 0.00 24.30 0.261   0.053 723   16 90   10
Napa-NW (Ranch 54) 5/19/26 92.2   5.7 1722 45.1   7.2 0529 32.8   10.2 76   21 7   3 2.1 15.8   4.8 1247 NNE | 27 0.00 26.77 - 0   0 90   10
Napa-North (Ranch 29) 5/19/26 92.0   5.5 1710 45.3   6.4 0444 36.1   9.9 82   17 8   1 1.8 12.0   8.6 1305 NNW | 337 0.00 25.18 0.168   0.020 416   14 90   10
Max   94.0 - 64.2 - 39.7 86 14 4.1 18.5 - - 0.00 31.20 0.287 728 -
Avg   - - - - 33.4 - - 2.7 - - - - - - - -
Min   87.5 - 42.6 - 26.9 29 5 1.7 11.6 - - 0.00 23.62 0.168 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 5/21/26 12:04 AM PDT
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 5/19/26 83.3   5.8 1521 62.3   4.5 0603 26.4   7.0 29   1 10   4 2.3 12.7   12.5 0841 N | 5 0.00 34.19 0.227   0.034 637   39 70   20
Mount George (Napa East) 5/19/26 88.7   3.7 1723 49.0   1.4 0525 35.0   8.8 75   14 8   2 2.1 15.9   14.2 1232 N | 350 0.00 17.04 0.242   0.043 698   11 90   10
Napa-East (Palmaz 300') 5/19/26 91.6   4.7 1649 50.5   4.4 0436 34.0   9.0 65   19 7   2 2.6 15.3   18.8 1524 ENE | 68 0.00 23.29 0.213   0.020 571   12 90   10
Napa-East (Palmaz 1200') 5/19/26 85.4   4.8 1637 52.5   0.2 0646 30.5   6.5 56   9 9   3 2.7 13.9   15.4 1700 E | 79 - - 0.236   0.016 706   16 90   20
Napa-East (Palmaz 1400') 5/19/26 83.4   5.6 1419 52.6   0.4 0059 30.6   5.8 58   16 12   2 4.0 16.7   19.5 1015 N | 6 0.00 30.80 0.255   0.023 690   10 90   20
Wooden Valley 5/19/26 85.1   3.4 1750 40.0   5.4 0536 36.3   8.4 91   8 9   1 2.6 17.5   6.8 1506 NW | 313 0.00 29.11 0.241   0.035 714   19 100   0
Napa-West Upper (Truchard) 5/19/26 91.3   6.3 1606 54.2   4.9 0540 31.9   9.8 62   29 8   3 4.0 17.4   10.2 1212 NNE | 14 0.00 24.41 0.285   0.019 706   14 90   10
Napa-West Lower (Truchard) 5/19/26 94.5   4.3 1633 39.3   4.0 0535 36.1   8.5 94   15 8   1 - - - - - - - - 80   10
Napa-South (Toyon Farms) 5/19/26 92.6   4.9 1512 50.6   5.3 0551 42.4   8.9 79   21 13   3 2.4 18.2   3.5 1323 ENE | 61 0.00 18.34 0.152   0.001 355   5 80   10
Toyon Remote 1 5/19/26 91.7   5.2 1503 37.7   5.0 0609 - - - - - - - - - - - -
Toyon Remote 2 5/19/26 92.2   4.3 1552 40.9   4.9 0538 - - - - - - - - - - - -
Toyon Remote 3 5/19/26 93.1   4.7 1609 41.8   5.4 0601 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 5/19/26 90.4   5.1 1501 43.9   6.2 0520 34.9   10.2 85   22 8   2 3.1 16.5   11.5 0833 N | 353 0.00 23.58 0.264   0.039 723   17 80   10
Carneros (Saintsbury) 5/19/26 89.2   4.6 1611 45.9   5.3 0550 37.2   11.9 80   22 8   2 3.3 20.0   6.2 1653 SW | 234 0.00 8.68 - - 90   10
Suscol Lower (Ranch 35) 5/19/26 90.6   4.6 1539 41.6   8.6 0519 36.5   11.9 - - 4.3 19.1   6.4 1637 SW | 224 0.00 22.84 0.252   0.049 636   16 90   10
Suscol Mtn (Ranch 93) 5/19/26 87.7   5.0 1432 61.7   1.5 0042 25.8   6.4 54   30 8   2 6.8 24.3   11.8 1733 WNW | 302 0.00 18.60 - - 90   10
Suscol Upper (Ranch 92) 5/19/26 89.8   5.4 1439 60.1   1.3 0101 28.1   7.1 67   43 8   2 3.4 20.4   11.3 1718 SW | 234 0.00 22.35 - - 90   10
Stanly (Ranch 45) 5/19/26 92.4   5.0 1619 42.0   6.4 0501 39.8   12.2 92   15 7   1 3.8 20.9   8.6 1658 W | 263 0.00 22.49 0.289   0.060 760   24 80   10
Carneros Upper (Ranch 81) 5/19/26 89.3   5.2 1540 57.1   5.8 0634 33.0   13.8 - - 5.4 25.7   12.4 1744 WSW | 256 - - - - 90   10
Carneros (Mitsuko) 5/19/26 91.0   4.9 1456 38.3   4.9 0544 - - - - - - - - - - - 90   10
Carneros Lower (Ranch 81) 5/19/26 91.1   5.1 1544 43.0   6.4 0531 39.1   12.1 90   23 9   3 1.6 13.1   15.8 1349 NNE | 30 0.00 19.42 0.211   0.060 610   14 90   10
Carneros (Milton Rd) 5/19/26 92.0   4.8 1425 40.2   3.4 0540 38.7   13.2 90   12 7   1 - - - - 0.00 18.07 - - 90   10
Max   94.5 - 62.3 - 42.4 94 13 6.8 25.7 - - 0.00 34.19 0.289 760 -
Avg   - - - - 34.2 - - 3.4 - - - - - - - -
Min   83.3 - 37.7 - 25.8 29 7 1.6 12.7 - - 0.00 8.68 0.152 355 -