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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 7/18/26 4:25 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 7/17/26 87.6   2.0 1552 47.8   4.0 0552 - - - - - - - 0.00 0.00 - - 70   20
Pope Valley (Weeks Lake) 7/17/26 91.4   3.1 1542 42.4   1.8 0603 48.1   3.8 100   9 19   5 2.0   0.1 14.0   0.2 1234 SE | 124 0.00 0.00 0.223   0.017 637   6 0   0
Dollarhide Base 7/17/26 93.6   3.8 1559 50.8   4.7 0617 53.2   3.8 92   15 29   8 3.4   0.1 14.8   2.8 1758 SW | 225 0.00 0.00 0.268   0.022 743   3 0   0
Dollarhide 1AS Remote 7/17/26 94.5   3.3 1610 43.3   2.2 0556 51.0   3.1 91   7 27   6 2.9   0.1 15.9   0.0 1727 S | 179 - - - - 0   0
Dollarhide 16A Remote 7/17/26 93.3   2.8 1558 50.1   2.8 0552 53.3   4.2 94   12 31   12 - - - - - - - - 0   0
Dollarhide 18A Remote 7/17/26 91.7   2.4 1536 41.2   2.4 0604 50.1   2.5 94   5 28   6 - - - - - - - - 0   0
Hardin Rd (Eakle) 7/17/26 92.8   2.4 1516 47.3   2.5 0557 - - - - - - - - - - - 0   0
Angwin 7/17/26 82.9   1.8 1556 61.8   4.1 0626 41.0   2.7 54   14 9   8 2.7   0.2 13.1   0.4 1758 S | 171 0.00 0.00 0.059   0.013 0   0 100   0
Lower Angwin (Pioneer) 7/17/26 85.2   2.0 1529 38.4   3.0 0554 - - - 1.9   0.1 13.9   1.6 1519 WNW | 303 - - - - 70   20
Las Posadas (Cal Fire) 7/17/26 85.5   3.5 1528 48.3   9.1 0614 51.5   6.8 97   27 36   11 8.8   0.1 18.9   4.6 2053 SW | 232 0.00 0.00 0.238   0.065 641   3 -
Deer Park 7/17/26 87.3   4.6 1511 53.2   2.1 0339 52.4   6.9 95   20 34   14 3.8   0.4 15.5   1.2 1631 SSE | 151 0.00 0.00 0.183   0.038 479   14 80   10
Lower Chiles Valley (Brown) 7/17/26 88.6   2.8 1611 50.9   6.8 0412 51.2   7.2 97   22 24   7 3.8   0.0 13.7   1.5 1540 WNW | 287 0.00 0.00 0.228   0.030 694   13 40   10
Moss Creek Vineyard/Reservior 7/17/26 92.7   1.3 1514 48.1   6.6 0604 49.2   4.6 94   23 19   2 - - - - 0.00 0.00 - - 0   0
Max   94.5 - 61.8 - 53.3 100 36 8.8 18.9 - - 0.00 0.00 0.268 743 -
Avg   - - - - 50.1 - - 3.7 - - - - - - - -
Min   82.9 - 38.4 - 41.0 54 9 1.9 13.1 - - 0.00 0.00 0.059 0 -

Northern & Central Napa County

27 Stations

Daily Data | America/Los_Angeles
as of 7/18/26 4:25 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 7/17/26 93.1   3.6 1436 48.7   2.2 0455 51.9   3.6 94   16 25   5 - - - - 0.00 0.00 - - 0   10
Diamond Mtn (Schramsberg) 7/17/26 88.2   4.4 1603 51.6   5.3 0623 52.0   8.5 100   27 23   7 - - - - 0.00 0.00 - - 80   10
Diamond Mtn (McEachran) 7/17/26 88.9   3.8 1550 52.6   5.1 0550 52.1   7.9 92   19 33   16 - - - - - - - - 80   10
St. Helena-North 7/17/26 87.9   6.5 1544 51.4   1.5 0441 50.2   5.9 82   10 31   17 3.8 15.4   1.5 1650 SE | 131 0.00 0.00 0.222   0.015 601   9 0   0
St. Helena (NVV Office) 7/17/26 87.2   6.5 1553 51.7   2.7 0520 - - - 1.8 10.7   1.5 1621 E | 91 0.00 0.00 - - 30   10
Tiara Fria (East St. Helena) 7/17/26 83.8   6.0 1505 50.9   1.0 0348 52.3   3.5 87   0 39   15 2.6 14.4   2.6 1620 SE | 125 0.00 0.00 - - 60   20
Prisoner Winery 7/17/26 87.6   6.1 1610 47.8   0.0 0424 52.5   3.7 93   1 35   13 1.8 10.4   0.1 1628 SSE | 155 0.00 0.00 0.210   0.116 638   385 30   10
Rutherford Hill Estate 7/17/26 85.4   6.2 1608 53.5   0.2 0331 52.9   4.3 92   12 36   15 1.8 14.7   0.9 1624 S | 182 0.00 0.00 0.185   0.019 570   15 60   20
Rutherford-North (Mee Ln) 7/17/26 83.0   6.4 1552 46.4   0.0 0408 51.8   3.6 92   3 40   16 4.0 18.2   1.5 1631 SSE | 154 0.00 0.00 0.209   0.035 597   38 60   20
Rutherford (STS) 7/17/26 85.2   6.4 1407 46.1   1.0 0420 54.5   2.9 93   1 43   15 2.9 15.2   0.3 1629 ESE | 109 0.00 0.00 0.216   0.029 662   51 60   20
Oakville-NE (Ranch 88) 7/17/26 84.2   6.4 1455 46.9   1.1 0411 50.4   4.2 84   2 36   15 3.1 18.7   1.6 1645 SSE | 155 0.00 0.00 0.210   0.026 608   40 100   0
OV561-East 7/17/26 84.8   8.0 1605 49.7   1.4 0403 - - - - - - - - - - - 80   20
Oakville 7/17/26 80.8   6.6 1541 47.8   0.8 0422 51.9   3.9 88   0 42   17 4.8 19.7   1.5 1501 ESE | 121 0.00 0.00 0.221   0.036 667   36 90   20
OV518-West 7/17/26 80.0   6.9 1525 47.4   0.1 0419 - - - - - - - - - - - 90   20
To Kalon Remote (TKKE) 7/17/26 84.5   7.1 1527 47.5   0.1 0419 - - - - - - - - - - - 60   20
To Kalon 7/17/26 81.2   8.0 1518 47.7   0.2 0418 52.7   3.2 93   1 43   18 4.3 16.9   1.2 1903 SSE | 159 0.00 0.00 0.211   0.041 617   54 70   20
To Kalon Remote (TKN5) 7/17/26 84.9   7.1 1535 47.9   0.1 0424 - - - - - - - - - - - 60   20
Yountville (Ranch 67) 7/17/26 79.0   7.1 1534 48.4   1.5 0405 51.4   3.9 90   2 43   18 4.4 18.6   0.5 1650 ESE | 109 0.00 0.00 0.214   0.034 703   30 100   0
Stags Leap Dist (Silverado Vineyards) 7/17/26 79.4   8.6 1529 48.8   1.4 0400 51.6   3.9 92   2 41   19 3.6 18.7   0.2 1557 SE | 141 0.00 0.00 0.208   0.037 647   47 70   10
Borreo (Soda Canyon) 7/17/26 77.5   7.2 1536 47.6   0.7 0329 51.2   4.6 95   7 43   19 2.2 11.1   1.4 1436 SSE | 163 0.00 0.00 0.205   0.032 685   41 100   20
Wappo Hill Floor 7/17/26 80.3   8.5 1522 48.1   1.8 0353 52.7   4.5 100   13 42   18 3.6 15.4   1.4 1835 ESE | 105 0.00 0.00 0.212   0.037 663   46 90   20
Stags Leap Dist (Chimney Rock) 7/17/26 79.6   7.3 1543 48.4   2.9 0346 54.4   3.2 98   0 49   18 3.5 15.0   0.7 1549 S | 170 0.00 0.00 0.186   0.034 585   41 90   20
Yountville-South (Ranch 87) 7/17/26 81.3   7.4 1455 48.3   0.6 0357 52.7   3.4 92   2 42   19 2.1 11.8   0.2 1403 S | 180 0.00 0.00 0.202   0.029 654   46 90   20
Yountville-SE (Ranch 85) 7/17/26 78.4   8.1 1526 49.6   1.5 0333 53.3   3.5 94   3 46   20 3.7 14.7   0.1 1759 SE | 136 0.00 0.00 - 0   0 90   20
Oak Knoll-East (Ranch 53) 7/17/26 78.3   9.5 1550 49.1   0.8 0549 51.4   3.2 89   1 44   21 3.0 17.2   2.3 1848 SE | 132 0.00 0.00 0.204   0.037 664   59 80   20
Napa-NW (Ranch 54) 7/17/26 84.9   6.6 1728 49.1   0.1 0407 51.4   3.3 90   3 27   7 0.8 8.2   2.2 1421 ENE | 69 0.00 0.00 - 0   0 80   20
Napa-North (Ranch 29) 7/17/26 77.6   7.1 1721 50.9   1.7 0627 53.6   3.8 100   10 46   19 2.0 14.9   0.9 1551 SSW | 206 0.00 0.00 0.141   0.019 439   7 100   0
Max   93.1 - 53.5 - 54.5 100 49 4.8 19.7 - - 0.00 0.00 0.222 703 -
Avg   - - - - 52.2 - - 3.0 - - - - - - - -
Min   77.5 - 46.1 - 50.2 82 23 0.8 8.2 - - 0.00 0.00 0.141 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 7/18/26 4:25 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 7/17/26 84.8   4.2 1524 52.1   5.4 0509 50.3   7.0 84   16 35   21 1.6 12.1   2.8 1337 SSE | 149 0.00 0.00 0.282   0.015 1,103   40 100   10
Mount George (Napa East) 7/17/26 100.5   12.6 1524 52.2   1.6 2355 53.6   2.6 92   1 46   17 2.0 11.5   0.7 1338 W | 261 0.00 0.00 0.187   0.040 628   63 90   20
Napa-East (Palmaz 300') 7/17/26 81.1   6.1 1702 52.3   1.4 0027 53.4   4.3 94   3 40   16 2.2 12.3   1.0 1618 SSW | 210 0.00 0.00 0.175   0.025 536   35 90   20
Napa-East (Palmaz 1200') 7/3/26 79.0   6.0 1616 49.0   3.8 0539 47.1   0.2 100   0 45   38 2.0 12.7   4.5 1533 NW | 313 - - 0.192   0.009 656   3 30   20
Napa-East (Palmaz 1400') 7/17/26 75.4   4.9 1528 50.9   0.4 0515 53.0   5.5 100   0 49   20 3.5 12.7   3.3 1624 SW | 230 0.00 0.00 0.190   0.035 662   31 80   20
Wooden Valley 7/17/26 81.2   3.4 1540 52.2   4.1 0442 51.0   6.6 90   8 38   16 4.7 17.0   0.7 2321 WSW | 248 0.00 0.00 0.224   0.042 712   6 100   0
Napa-West Upper (Truchard) 7/17/26 79.5   8.6 1716 50.8   0.0 0604 27.9   20.6 100   12 0   21 4.0 18.1   0.4 1946 SSW | 208 0.00 0.00 0.209   0.047 654   51 90   20
Napa-West Lower (Truchard) 7/17/26 79.9   8.6 1641 43.3   0.0 0400 50.6   4.0 94   1 41   20 - - - - - - - - 90   20
Napa-South (Toyon Farms) 7/17/26 75.5   9.6 1538 50.2   1.8 0504 54.8   3.0 99   10 55   24 4.5 16.5   0.8 1752 S | 171 0.00 0.00 0.115   0.029 374   17 100   0
Toyon Remote 1 7/17/26 76.1   12.2 1716 45.3   0.5 0552 - - - - - - - - - - - -
Toyon Remote 2 7/17/26 75.1   10.0 1635 44.8   0.9 0607 - - - - - - - - - - - -
Toyon Remote 3 7/17/26 76.7   11.7 1713 44.4   0.2 0543 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 7/17/26 78.8   6.8 1717 46.0   2.8 0554 51.4   4.1 95   6 37   14 3.1 16.4   1.2 1202 SSE | 156 0.00 0.00 0.193   0.039 659   48 100   0
Carneros (Saintsbury) 7/17/26 74.8   10.5 1708 45.7   4.4 0549 51.7   3.4 100   14 50   25 5.1 18.3   1.4 1742 S | 189 0.00 0.00 - - 90   10
Suscol Lower (Ranch 35) 7/17/26 76.7   8.9 1533 52.5   1.2 0004 52.7   3.0 93   6 43   21 4.9 17.3   0.3 1604 SSW | 201 0.00 0.00 0.185   0.042 582   64 100   0
Suscol Mtn (Ranch 93) 7/17/26 79.1   6.1 1550 52.5   2.0 0057 53.5   3.7 98   5 43   18 6.3 16.7   4.7 1616 WNW | 299 0.00 0.00 - - 100   20
Suscol Upper (Ranch 92) 7/17/26 75.4   5.8 1600 53.3   1.4 0058 33.3   16.9 100   8 0   26 3.9 15.4   3.1 1745 SSW | 200 0.00 0.00 - - 30   10
Stanly (Ranch 45) 7/16/26 84.3   5.4 1605 47.8   11.2 0632 49.5   3.7 90   10 24   7 5.6 19.0   1.8 1501 S | 182 0.00 0.00 0.268   0.005 767   18 100   0
Carneros Upper (Ranch 81) 7/17/26 78.1   4.1 1721 52.2   2.0 0531 52.0   4.9 - - 6.3 20.8   4.2 2130 W | 266 - - - - 100   0
Carneros (Mitsuko) 7/17/26 76.2   9.2 1701 42.3   1.7 0544 - - - - - - - - - - - 100   0
Carneros Lower (Ranch 81) 7/17/26 81.1   8.9 1745 46.3   3.8 0546 49.5   0.8 100   0 0   0 1.7 13.7   1.5 1557 S | 179 0.00 0.00 0.183   0.024 623   33 90   20
Carneros (Milton Rd) 7/17/26 74.5   10.4 1606 46.2   1.8 0505 51.7   3.8 93   1 48   24 - - - - 0.00 0.00 - - 90   10
Max   100.5 - 53.3 - 54.8 100 55 6.3 20.8 - - 0.00 0.00 0.282 1,103 -
Avg   - - - - 49.4 - - 3.8 - - - - - - - -
Min   74.5 - 42.3 - 27.9 84 0 1.6 11.5 - - 0.00 0.00 0.115 374 -