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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 7/31/26 3:00 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 7/30/26 91.7   0.7 1452 53.0   2.8 0253 - - - - - - - 0.00 0.00 - - 0   10
Pope Valley (Weeks Lake) 7/30/26 96.5   0.0 1516 45.0   4.1 0522 47.6   4.0 97   1 14   8 1.7   0.1 13.4   0.7 1339 SSE | 150 0.00 0.00 0.225   0.001 618   10 0   0
Dollarhide Base 7/30/26 98.6   0.1 1544 54.2   3.2 0625 53.6   3.5 93   0 22   5 3.1   0.1 14.8   0.0 1606 SSW | 213 0.00 0.00 0.267   0.001 695   6 0   0
Dollarhide 1AS Remote 7/30/26 100.3   0.6 1559 47.0   4.4 0613 51.1   4.3 89   0 20   6 2.7   0.1 17.2   1.5 1229 WSW | 246 - - - - 0   0
Dollarhide 16A Remote 7/30/26 97.3   1.7 1440 51.9   3.8 0637 53.2   3.8 92   1 24   4 - - - - - - - - 0   0
Dollarhide 18A Remote 7/30/26 96.0   0.1 1521 45.0   4.0 0604 50.6   3.9 94   0 23   5 - - - - - - - - 0   0
Hardin Rd (Eakle) 7/30/26 97.0   0.6 1603 50.2   3.2 0628 - - - - - - - - - - - 0   0
Angwin 7/30/26 87.9   0.3 1548 65.1   1.1 0553 40.1   6.1 38   11 17   1 2.6   0.6 15.2   3.5 1552 S | 169 0.00 0.00 0.066   0.005 0   0 100   0
Lower Angwin (Pioneer) 7/30/26 88.8   0.9 1554 44.0   4.4 0424 - - - 1.7   0.1 11.9   0.0 1601 W | 259 - - - - 70   10
Las Posadas (Cal Fire) 7/30/26 90.8   0.3 1530 52.4   0.5 0623 51.3   3.7 89   8 25   7 7.8   0.9 20.3   0.1 1648 S | 189 0.00 0.00 0.263   0.001 617   10 -
Deer Park 7/30/26 93.9   1.5 1507 54.8   1.6 0631 53.4   2.9 94   1 25   7 3.4   0.1 13.6   1.1 1823 ESE | 119 0.00 0.00 0.192   0.005 465   6 10   10
Lower Chiles Valley (Brown) 7/30/26 94.2   0.3 1545 50.4   2.7 0605 49.7   5.2 97   1 14   11 3.9   0.1 15.5   0.1 1332 WNW | 300 0.00 0.00 0.239   0.006 674   8 0   0
Moss Creek Vineyard/Reservior 7/30/26 98.8   0.1 1502 53.9   1.8 0638 49.0   4.7 88   4 14   5 - - - - 0.00 0.00 - - 0   0
Max   100.3 - 65.1 - 53.6 97 25 7.8 20.3 - - 0.00 0.00 0.267 695 -
Avg   - - - - 50.0 - - 3.4 - - - - - - - -
Min   87.9 - 44.0 - 40.1 38 14 1.7 11.9 - - 0.00 0.00 0.066 0 -

Northern & Central Napa County

27 Stations

Daily Data | America/Los_Angeles
as of 7/31/26 3:00 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 7/30/26 99.3   0.3 1553 50.5   2.0 0628 53.5 95 19 - - - - 0.00 0.00 - - 0   0
Diamond Mtn (Schramsberg) 7/30/26 94.2   0.3 1636 55.6   0.9 0626 51.0   4.9 97   3 11   13 - - - - 0.00 0.00 - - 10   10
Diamond Mtn (McEachran) 7/30/26 95.6   2.4 1610 54.7   1.5 0608 51.7   4.5 90   0 11   21 - - - - - - - - 10   10
St. Helena-North 7/30/26 94.7   1.3 1505 52.3   2.2 0610 51.4   3.0 88   1 23   6 3.5 16.9   2.4 1613 ESE | 114 0.00 0.00 0.235   0.007 594   11 0   0
St. Helena (NVV Office) 7/30/26 93.7   0.8 1502 53.2   2.5 0618 - - - 1.6 11.5   0.8 1751 ESE | 120 0.00 0.00 - - 0   0
Tiara Fria (East St. Helena) 7/30/26 89.8   1.1 1511 50.7   2.9 0606 53.6   2.8 91   1 30   7 2.3 13.1   0.3 1645 SE | 127 0.00 0.00 - - 0   0
Prisoner Winery 7/30/26 92.9   0.5 1522 49.7   2.2 0608 53.9   2.5 97   0 28   4 1.2 10.6   0.3 1725 SSE | 147 0.00 0.00 0.089   0.125 242   394 0   0
Rutherford Hill Estate 7/30/26 91.2   1.2 1519 54.0   2.0 0633 54.6   2.3 100   0 27   7 1.7 16.0   2.6 1534 S | 187 0.00 0.00 0.193   0.004 574   10 0   0
Rutherford-North (Mee Ln) 7/30/26 89.6   1.7 1502 46.4   3.3 0627 52.8   2.4 94   2 31   6 3.2 18.4   1.5 1754 ESE | 107 0.00 0.00 0.213   0.007 573   9 0   0
Rutherford (STS) 7/30/26 91.8   1.1 1454 47.1   2.8 0610 55.4   2.3 92   0 36   5 2.3 15.3   0.9 1811 ESE | 106 0.00 0.00 0.231   0.006 682   13 0   0
Oakville-NE (Ranch 88) 7/30/26 89.8   1.6 1513 46.9   2.9 0624 50.9   2.7 88   1 27   7 2.6 17.6   0.3 1551 SSW | 206 0.00 0.00 0.223   0.006 621   9 100   0
OV561-East 7/30/26 90.8   1.3 1709 49.4   3.5 0637 - - - - - - - - - - - 0   0
Oakville 7/30/26 86.1   0.8 1634 48.2   3.0 0625 52.8   2.5 92   2 32   7 3.9 19.2   0.2 1747 SE | 138 0.00 0.00 0.235   0.007 670   10 90   10
OV518-West 7/30/26 86.9   1.9 1456 48.3   3.6 0611 - - - - - - - - - - - 90   10
To Kalon Remote (TKKE) 7/30/26 90.2   0.5 1511 50.3   1.8 0549 - - - - - - - - - - - 0   0
To Kalon 7/30/26 87.3   0.7 1601 49.9   2.0 0540 54.3   2.0 96   1 33   7 3.6 18.6   0.3 1759 SE | 126 0.00 0.00 0.231   0.005 644   10 50   10
To Kalon Remote (TKN5) 7/30/26 90.1   0.0 1419 49.8   2.7 0556 - - - - - - - - - - - 0   0
Yountville (Ranch 67) 7/30/26 84.3   0.6 1631 48.4   2.3 0607 52.2   2.3 92   1 33   6 3.9 17.5   2.1 1558 SSE | 161 0.00 0.00 0.231   0.007 707   27 100   0
Stags Leap Dist (Silverado Vineyards) 7/30/26 85.8   0.7 1604 49.3   1.5 0608 52.6   2.3 94   1 32   5 3.4 17.5   0.9 1725 SSE | 147 0.00 0.00 0.226   0.005 651   11 100   10
Borreo (Soda Canyon) 7/30/26 84.5   1.6 1427 48.7   2.2 0610 51.7   2.4 97   0 32   7 2.0 10.7   0.1 1547 SE | 128 0.00 0.00 0.221   0.008 701   24 100   0
Wappo Hill Floor 7/30/26 85.9   0.2 1613 47.8   2.6 0527 53.9   2.3 100   0 34   4 3.0 15.1   0.7 1721 SE | 130 0.00 0.00 0.225   0.004 675   10 70   10
Stags Leap Dist (Chimney Rock) 7/30/26 85.1   0.5 1621 48.2   2.6 0556 55.2   2.2 99   1 41   5 2.9 13.7   0.6 1725 SE | 136 0.00 0.00 0.199   0.005 597   9 100   0
Yountville-South (Ranch 87) 7/30/26 87.2   1.3 1627 49.6   1.9 0522 54.2   1.9 100   5 32   6 1.8 11.0   0.0 1534 SSE | 155 0.00 0.00 0.211   0.004 656   10 0   0
Yountville-SE (Ranch 85) 7/30/26 84.6   1.1 1624 49.3   2.8 0536 54.6   2.2 96   1 37   6 3.1 15.6   1.3 1510 SSE | 149 0.00 0.00 - 0   0 100   0
Oak Knoll-East (Ranch 53) 7/30/26 85.2   0.8 1634 49.8   2.5 0539 53.2   1.9 92   1 33   6 2.6 13.4   1.1 1652 SE | 136 0.00 0.00 0.220   0.002 679   1 70   10
Napa-NW (Ranch 54) 7/30/26 89.3   0.6 1621 50.3   2.6 0619 53.6   1.9 93   2 28   4 0.7 8.0   1.2 1537 S | 184 0.00 0.00 - 0   0 10   10
Napa-North (Ranch 29) 7/30/26 83.3   0.9 1609 50.3   3.2 0542 54.9   2.2 100   0 38   4 1.9 12.6   0.8 1207 SSE | 162 0.00 0.00 0.140   0.006 393   6 100   0
Max   99.3 - 55.6 - 55.4 100 41 3.9 19.2 - - 0.00 0.00 0.235 707 -
Avg   - - - - 53.3 - - 2.6 - - - - - - - -
Min   83.3 - 46.4 - 50.9 88 11 0.7 8.0 - - 0.00 0.00 0.089 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 7/31/26 3:00 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 7/30/26 90.4   0.3 1633 58.9   0.6 0446 49.6   3.9 77   9 19   10 1.7 12.8   1.4 1512 SSE | 154 0.00 0.00 0.236   0.060 816   271 10   10
Mount George (Napa East) 7/30/26 83.8   1.5 1507 52.0   2.1 0432 53.9   2.2 98   3 34   6 1.8 10.7   0.1 1428 WSW | 258 0.00 0.00 0.204   0.010 653   33 100   0
Napa-East (Palmaz 300') 7/30/26 89.1   1.1 1655 52.8   2.8 0428 53.5   2.6 100   0 27   8 1.6 11.0   0.2 1432 WSW | 246 0.00 0.00 0.190   0.008 548   19 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') 7/30/26 82.8   1.1 1518 53.1   1.1 0445 53.0   3.0 100   0 34   9 3.2 13.5   1.6 1545 SW | 216 0.00 0.00 0.208   0.008 651   19 100   0
Wooden Valley 7/30/26 87.9   1.2 1536 56.2   3.4 0431 50.4   3.8 82   1 24   10 4.0 15.6   2.1 1542 SW | 228 0.00 0.00 0.237   0.003 685   11 70   10
Napa-West Upper (Truchard) 7/30/26 83.9   0.9 1529 52.3   2.2 0553 22.4   11.4 100   0 0   0 3.4 15.1   0.2 1543 SSW | 194 0.00 0.00 0.223   0.003 653   2 80   20
Napa-West Lower (Truchard) 7/30/26 83.1   1.0 1558 45.8   2.0 0552 52.1   1.5 96   3 38   3 - - - - - - - - 100   10
Napa-South (Toyon Farms) 7/30/26 81.5   0.3 1537 53.5   1.7 0540 57.0   1.6 100   0 46   3 3.9 15.8   1.0 1718 SSE | 157 0.00 0.00 0.121   0.005 330   4 100   0
Toyon Remote 1 7/30/26 81.7   0.2 1529 48.1   2.4 0550 - - - - - - - - - - - -
Toyon Remote 2 7/30/26 80.9   0.2 1544 47.7   2.1 0608 - - - - - - - - - - - -
Toyon Remote 3 7/30/26 82.2   0.7 1549 47.3   2.3 0527 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 7/30/26 84.1   0.1 1723 49.7   2.4 0611 53.6   1.3 95   1 32   7 2.9 15.2   1.4 1106 SSE | 158 0.00 0.00 0.208   0.005 653   8 100   0
Carneros (Saintsbury) 7/30/26 80.0   0.3 1601 47.7   3.1 0625 53.4   1.9 100   0 40   4 4.7 17.0   0.7 1720 SSE | 161 0.00 0.00 - - 100   0
Suscol Lower (Ranch 35) 7/30/26 82.2   0.6 1442 52.6   2.5 0423 53.5   2.2 100   0 33   6 5.2 15.9   0.1 1718 SSW | 197 0.00 0.00 0.208   0.012 593   24 100   0
Suscol Mtn (Ranch 93) 7/30/26 85.1   1.0 1453 55.4   0.9 0410 53.8   2.8 98   1 32   7 4.7 16.8   1.5 1710 WNW | 293 0.00 0.00 - - 100   0
Suscol Upper (Ranch 92) 7/30/26 82.5   0.3 1517 55.8   1.3 0426 41.6   7.9 100   0 0   0 4.1 15.9   2.2 1526 SW | 234 0.00 0.00 - - 100   0
Stanly (Ranch 45) 7/30/26 80.5   0.7 1457 48.7   1.9 0613 53.9   1.7 95   1 40   4 5.6 19.2   2.9 1704 SSW | 206 0.00 0.00 0.225   0.009 679   13 100   0
Carneros Upper (Ranch 81) 7/30/26 83.6   1.0 1702 55.3   1.9 0539 53.3   2.4 - - 4.5 18.7   0.1 1540 S | 185 - - - - 100   0
Carneros (Mitsuko) 7/30/26 81.3   0.7 1545 45.8   3.1 0606 - - - - - - - - - - - 100   0
Carneros Lower (Ranch 81) 7/30/26 82.3   0.4 1528 50.3   1.7 0613 52.5   1.9 100   0 0   0 2.0 13.1   0.1 1544 SSE | 161 0.00 0.00 0.205   0.008 651   28 100   10
Carneros (Milton Rd) 7/30/26 79.1   1.6 1657 48.6   2.0 0605 53.1   2.6 94   1 41   4 - - - - 0.00 0.00 - - 100   0
Max   90.4 - 58.9 - 57.0 100 46 5.6 19.2 - - 0.00 0.00 0.237 816 -
Avg   - - - - 50.6 - - 3.5 - - - - - - - -
Min   79.1 - 45.8 - 22.4 77 0 1.6 10.7 - - 0.00 0.00 0.121 330 -