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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 8/24/26 12:31 PM PDT
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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 8/23/26 92.6   3.3 1601 55.1   3.1 0334 - - - - - - - 0.00 0.00 - - 50   10
Pope Valley (Weeks Lake) 8/23/26 98.3   5.7 1521 44.3   0.0 0631 44.9   2.0 100   0 9   6 1.3   0.3 11.0   1.5 1458 SSW | 195 0.00 0.00 0.195   0.009 552   34 0   0
Dollarhide Base 8/23/26 101.4   5.6 1535 53.1   0.4 0653 50.8   1.8 92   1 16   6 2.4   0.4 12.8   0.2 1815 S | 190 0.00 0.00 0.226   0.006 574   4 0   0
Dollarhide 1AS Remote 8/23/26 102.4   5.1 1522 45.2   0.8 0639 47.9   2.1 89   1 14   7 2.2   0.0 16.2   0.7 1757 S | 189 - - - - 0   0
Dollarhide 16A Remote 8/23/26 101.8   6.7 1456 51.2   1.1 0627 50.7   1.5 91   0 15   7 - - - - - - - - 0   0
Dollarhide 18A Remote 8/23/26 99.7   6.7 1522 43.7   0.2 0643 48.1   1.9 93   2 14   9 - - - - - - - - 0   0
Hardin Rd (Eakle) 8/23/26 100.2   6.5 1527 48.5   0.8 0627 - - - - - - - - - - - 0   0
Angwin 8/23/26 90.7   5.8 1636 66.8   3.2 0609 39.4   1.8 41   4 8   8 3.6   1.0 12.4   0.8 1412 SSE | 160 0.00 0.00 0.085   0.022 0   0 100   0
Lower Angwin (Pioneer) 8/23/26 91.7   6.5 1602 46.8   3.9 0223 - - - 2.2   0.6 9.5   2.6 1454 SE | 125 - - - - 90   10
Las Posadas (Cal Fire) 8/23/26 95.0   6.8 1513 59.1   9.7 0055 45.7   4.8 75   21 12   15 5.8   1.7 18.9   1.0 1942 SW | 234 0.00 0.00 0.253   0.024 527   10 -
Deer Park 8/23/26 98.3   7.5 1606 55.6   2.8 0701 51.6   0.3 90   5 11   13 2.6   0.3 12.3   0.9 1730 S | 169 0.00 0.00 0.182   0.028 416   34 0   0
Lower Chiles Valley (Brown) 8/23/26 95.2   3.7 1713 44.5   6.2 0642 46.2   2.9 95   1 12   6 2.2   1.5 14.9   1.0 1336 NW | 318 0.00 0.00 0.211   0.009 566   15 0   0
Moss Creek Vineyard/Reservior 8/23/26 100.0   3.8 1354 51.9   0.0 0647 47.2   0.1 87   6 13   1 - - - - 0.00 0.00 - - 0   0
Max   102.4 - 66.8 - 51.6 100 16 5.8 18.9 - - 0.00 0.00 0.253 574 -
Avg   - - - - 47.2 - - 2.8 - - - - - - - -
Min   90.7 - 43.7 - 39.4 41 8 1.3 9.5 - - 0.00 0.00 0.085 0 -

Northern & Central Napa County

27 Stations

Daily Data | America/Los_Angeles
as of 8/24/26 12:31 PM PDT
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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 8/23/26 102.4   6.8 1504 49.2   1.1 0624 51.9   0.1 92   4 15   8 - - - - 0.00 0.00 - - 0   10
Diamond Mtn (Schramsberg) 8/23/26 95.0   3.7 1455 57.6   5.1 0635 48.6   0.3 86   6 10   8 - - - - 0.00 0.00 - - 0   0
Diamond Mtn (McEachran) 8/23/26 97.2   5.3 1510 55.7   3.0 0627 48.2   0.4 80   9 10   10 - - - - - - - - 0   0
St. Helena-North 8/23/26 98.7   6.5 1632 51.3   1.4 0641 49.0   0.3 85   2 8   14 2.7 12.1   0.0 1414 ESE | 123 0.00 0.00 0.205   0.022 525   41 0   0
St. Helena (NVV Office) 8/23/26 98.8   6.7 1528 51.4   1.1 0639 - - - 1.5 10.7   1.0 1545 E | 84 0.00 0.00 - - 0   0
Tiara Fria (East St. Helena) 8/23/26 96.5   8.1 1538 49.0   1.0 0626 52.2   0.4 89   2 16   15 2.1 12.1   0.7 1659 SE | 136 0.00 0.00 - - 0   0
Prisoner Winery 8/23/26 101.5   10.3 1528 48.3   1.1 0556 53.0   0.4 96   1 14   15 1.3 8.8   1.2 1315 E | 86 0.00 0.00 0.036   0.010 8   7 0   0
Rutherford Hill Estate 8/23/26 97.9   8.9 1548 54.8   2.6 0657 54.0   0.2 96   4 16   12 1.5 12.5   0.2 1656 ESE | 110 0.00 0.00 0.173   0.015 485   13 0   0
Rutherford-North (Mee Ln) 8/23/26 96.0   8.8 1528 47.1   1.8 0605 52.4   1.1 91   1 15   17 3.0 14.5   0.7 1807 ESE | 121 0.00 0.00 0.198   0.022 491   12 0   0
Rutherford (STS) 8/23/26 99.8   9.0 1548 46.0   1.6 0627 55.4   1.2 92   0 24   12 1.9 14.0   2.3 1458 ESE | 111 0.00 0.00 0.213   0.022 594   20 0   0
Oakville-NE (Ranch 88) 8/23/26 96.9   7.9 1555 45.5   1.1 0628 50.2   0.9 84   1 17   13 2.2 15.1   0.4 1702 SE | 140 0.00 0.00 0.198   0.020 517   11 90   10
OV561-East 8/23/26 98.3   7.1 1557 48.7   1.2 0651 - - - - - - - - - - - 10   10
Oakville 8/23/26 93.7   8.2 1551 46.9   1.0 0619 52.5   1.1 91   0 23   12 3.3 15.0   0.4 1718 ESE | 114 0.00 0.00 0.217   0.018 574   9 90   10
OV518-West 8/23/26 92.7   6.9 1541 48.0   1.1 0603 - - - - - - - - - - - 90   10
To Kalon Remote (TKKE) 8/23/26 97.9   9.0 1557 47.6   0.8 0607 - - - - - - - - - - - 10   10
To Kalon 8/23/26 94.9   7.9 1547 49.1   1.4 0555 54.2   1.0 96   1 24   11 3.1 14.6   1.4 1716 SE | 140 0.00 0.00 0.219   0.025 578   25 70   10
To Kalon Remote (TKN5) 8/23/26 97.2   7.2 1543 48.1   1.1 0556 - - - - - - - - - - - 10   10
Yountville (Ranch 67) 8/23/26 91.6   7.3 1524 46.5   0.7 0558 52.0   0.9 91   0 24   10 3.4 14.3   1.4 1753 E | 96 0.00 0.00 0.210   0.009 609   18 90   10
Stags Leap Dist (Silverado Vineyards) 8/23/26 93.0   8.1 1650 46.8   0.9 0626 52.2   0.8 94   1 23   10 2.6 14.0   2.4 1721 ESE | 120 0.00 0.00 0.207   0.007 570   10 100   10
Borreo (Soda Canyon) 8/23/26 91.3   8.2 1600 49.1   2.4 0628 50.7   0.3 96   1 20   13 1.7 9.7   0.1 1606 SSE | 156 0.00 0.00 0.197   0.014 596   10 100   0
Wappo Hill Floor 8/23/26 93.3   7.6 1607 46.0   0.6 0633 52.8   0.2 92   8 25   9 2.4 12.7   0.3 1739 SE | 140 0.00 0.00 0.200   0.016 559   5 90   10
Stags Leap Dist (Chimney Rock) 8/23/26 92.4   8.4 1516 45.6   0.4 0641 55.0   0.8 98   0 31   9 2.3 12.1   1.1 1744 ESE | 122 0.00 0.00 0.182   0.016 515   7 90   10
Yountville-South (Ranch 87) 8/23/26 95.5   8.8 1514 47.4   0.1 0630 53.8   0.9 100   0 23   12 1.5 10.7   0.2 1715 SW | 228 0.00 0.00 0.185   0.014 533   1 20   10
Yountville-SE (Ranch 85) 8/23/26 91.2   7.1 1612 47.6   0.1 0611 54.2   0.6 94   2 28   9 2.4 12.7   0.7 1736 SSE | 149 0.00 0.00 - 0   0 90   10
Oak Knoll-East (Ranch 53) 8/23/26 92.0   7.8 1513 48.5   0.8 0611 53.0   0.7 90   1 22   12 2.1 11.5   1.0 1755 SSW | 193 0.00 0.00 0.197   0.013 578   5 90   10
Napa-NW (Ranch 54) 8/23/26 94.9   6.0 1601 50.0   1.2 0519 53.6   0.8 90   1 22   4 0.5 7.6   2.1 1125 SSW | 206 0.00 0.00 - 0   0 90   10
Napa-North (Ranch 29) 8/23/26 90.4   5.7 1538 48.5   0.0 0622 54.7   0.6 100   0 28   7 1.8 11.5   0.4 1703 S | 186 0.00 0.00 0.132   0.022 338   22 90   10
Max   102.4 - 57.6 - 55.4 100 31 3.4 15.1 - - 0.00 0.00 0.219 609 -
Avg   - - - - 52.4 - - 2.2 - - - - - - - -
Min   90.4 - 45.5 - 48.2 80 8 0.5 7.6 - - 0.00 0.00 0.036 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 8/24/26 12:31 PM PDT
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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 8/23/26 89.4   2.2 1501 64.4   8.4 0132 46.0   3.1 51   30 16   0 1.9 11.8   1.3 1647 SSE | 151 0.00 0.00 0.224   0.057 718   393 100   10
Mount George (Napa East) 8/23/26 90.6   8.6 1611 49.6   1.9 0637 53.3   0.9 98   3 23   10 1.1 8.0   2.3 1611 SSE | 162 0.00 0.00 0.182   0.007 567   0 90   10
Napa-East (Palmaz 300') 8/23/26 95.2   8.2 1539 51.0   1.2 0620 53.3   0.7 100   0 20   10 1.1 9.6   0.1 1716 WSW | 252 0.00 0.00 0.159   0.007 460   7 50   10
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') 8/23/26 89.3   7.0 1538 50.2   0.7 0642 50.6   1.4 91   9 21   15 2.2 12.1   0.1 1628 WSW | 238 0.00 0.03 0.194   0.017 557   3 90   10
Wooden Valley 8/23/26 93.7   7.2 1540 49.2   7.0 0635 46.7   3.1 91   11 13   14 3.5 12.7   2.0 2046 W | 264 0.00 0.00 0.201   0.001 564   8 40   10
Napa-West Upper (Truchard) 8/23/26 93.2   5.9 1525 54.0   2.9 0702 35.9   5.9 100   0 0   0 2.5 12.2   0.5 1723 S | 173 0.00 0.00 0.205   0.014 580   10 90   10
Napa-West Lower (Truchard) 8/23/26 92.1   5.1 1517 45.9   1.9 0608 52.7   2.2 96   1 26   1 - - - - - - - - 90   10
Napa-South (Toyon Farms) 8/23/26 90.4   5.4 1529 53.5   2.1 0647 58.4   1.9 100   0 36   3 1.8 13.3   0.5 1657 S | 175 0.00 0.00 0.106   0.003 276   16 90   10
Toyon Remote 1 8/23/26 90.2   4.4 1514 48.5   2.1 0616 - - - - - - - - - - - -
Toyon Remote 2 8/23/26 88.5   4.2 1523 47.4   1.5 0624 - - - - - - - - - - - -
Toyon Remote 3 8/23/26 90.9   4.0 1513 47.8   1.6 0637 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 8/23/26 90.3   3.2 1503 50.6   2.3 0515 54.5   2.2 95   0 29   4 2.3 11.1   3.6 1516 SE | 138 0.00 0.00 0.188   0.011 566   14 90   10
Carneros (Saintsbury) 8/23/26 87.7   3.1 1522 46.9   0.1 0625 54.4   1.4 100   0 32   6 3.2 13.8   2.7 1651 SSE | 156 0.00 0.00 - - 90   10
Suscol Lower (Ranch 35) 8/23/26 88.1   7.0 1558 51.7   2.0 0635 54.5   1.0 100   0 29   10 3.8 13.7   1.3 1705 SW | 220 0.00 0.00 0.185   0.005 528   9 90   10
Suscol Mtn (Ranch 93) 8/23/26 92.7   8.5 1555 56.7   4.3 0536 54.4   0.5 98   2 25   10 2.5 11.0   4.4 1359 WNW | 289 0.00 0.00 - - 90   10
Suscol Upper (Ranch 92) 8/23/26 90.2   8.2 1549 55.8   3.3 0542 45.4   5.5 100   0 0   0 0.6 10.0   0.7 1653 SSW | 205 0.00 0.00 - - 80   10
Stanly (Ranch 45) 8/23/26 85.9   4.7 1555 48.8   2.4 0353 54.8   0.9 94   1 34   1 4.3 13.2   0.5 1617 SSW | 207 0.00 0.00 0.203   0.008 609   2 100   0
Carneros Upper (Ranch 81) 8/23/26 92.2   9.0 1504 56.6   2.6 0502 55.0   2.4 - - 3.3 14.7   9.1 1626 SW | 227 - - - - 90   10
Carneros (Mitsuko) 8/23/26 88.6   2.4 1519 46.5   2.5 0536 - - - - - - - - - - - 90   10
Carneros Lower (Ranch 81) 8/23/26 89.8   0.2 1502 49.3   0.6 0627 52.7   0.4 100   0 0   0 1.8 10.9   2.2 1353 SSE | 164 0.00 0.00 0.128   0.098 320   296 90   10
Carneros (Milton Rd) 8/23/26 86.5   2.1 1527 48.4   2.2 0354 54.6   2.2 95   2 34   5 - - - - 0.00 0.00 - - 90   10
Max   95.2 - 64.4 - 58.4 100 36 4.3 14.7 - - 0.00 0.03 0.224 718 -
Avg   - - - - 51.6 - - 2.4 - - - - - - - -
Min   85.9 - 45.9 - 35.9 51 0 0.6 8.0 - - 0.00 0.00 0.106 276 -