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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 8/17/26 4:38 AM 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 8/16/26 86.9   8.3 1511 50.9   3.5 0202 - - - - - - - 0.00 0.00 - - 60   20
Pope Valley (Weeks Lake) 8/16/26 92.1   7.2 1526 45.4   0.9 0449 49.5   2.5 100   0 14   14 1.5   0.4 16.0   1.8 1315 WSW | 248 0.00 0.00 0.196   0.018 565   24 50   10
Dollarhide Base 8/16/26 94.9   5.4 1420 51.7   3.3 0609 54.6   2.3 99   2 18   10 2.7   0.3 14.2   0.4 1456 SSW | 203 0.00 0.00 0.227   0.022 609   18 20   10
Dollarhide 1AS Remote 8/16/26 96.6   5.6 1623 47.1   4.7 0536 52.9   3.0 93   0 18   8 2.2   0.8 15.0   3.2 1459 SSE | 159 - - - - 20   10
Dollarhide 16A Remote 8/16/26 93.9   5.6 1431 51.2   0.6 0627 54.6   1.9 98   0 22   8 - - - - - - - - 20   10
Dollarhide 18A Remote 8/16/26 94.8   7.2 1339 45.7   4.4 0508 52.6   2.8 97   1 21   7 - - - - - - - - 20   10
Hardin Rd (Eakle) 8/16/26 93.3   6.5 1421 49.3   3.6 0454 - - - - - - - - - - - 20   10
Angwin 8/16/26 83.6   7.1 1605 59.9   5.5 0326 48.7   4.0 69   25 21   15 3.7   1.1 12.7   1.2 1502 SSE | 163 0.00 0.00 0.061   0.031 0   0 90   20
Lower Angwin (Pioneer) 8/16/26 85.2   6.8 1658 42.2   1.5 0231 - - - 1.9   0.2 9.8   0.4 1608 WSW | 254 - - - - 80   20
Las Posadas (Cal Fire) 8/16/26 87.8   6.3 1541 48.3   3.6 0533 53.0   1.5 100   0 24   9 6.3   0.7 17.5   1.1 1450 SSW | 193 0.00 0.00 0.224   0.038 560   0 -
Deer Park 8/16/26 90.7   6.2 1602 54.2   0.8 0551 54.9   0.2 97   2 27   9 3.0   0.5 14.3   0.4 1511 SSE | 149 0.00 0.00 0.157   0.031 399   57 10   10
Lower Chiles Valley (Brown) 8/16/26 90.4   7.0 1611 52.5   1.4 0711 53.3   0.9 100   4 12   18 3.7   0.6 14.7   0.5 1500 NW | 308 0.00 0.00 0.197   0.016 595   19 10   10
Moss Creek Vineyard/Reservior 8/16/26 93.8   6.8 1423 51.8   1.4 0438 51.9   2.2 98   2 15   10 - - - - 0.00 0.00 - - 0   0
Max   96.6 - 59.9 - 54.9 100 27 6.3 17.5 - - 0.00 0.00 0.227 609 -
Avg   - - - - 52.6 - - 3.1 - - - - - - - -
Min   83.6 - 42.2 - 48.7 69 12 1.5 9.8 - - 0.00 0.00 0.061 0 -

Northern & Central Napa County

27 Stations

Daily Data | America/Los_Angeles
as of 8/17/26 4:38 AM 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 8/16/26 95.1   10.2 1333 51.4   1.5 0226 55.7   0.5 96   1 28   15 - - - - 0.00 0.00 - - 70   10
Diamond Mtn (Schramsberg) 8/16/26 89.5   6.2 1608 52.1   1.2 0642 53.4   1.2 100   0 27   12 - - - - 0.00 0.00 - - 10   10
Diamond Mtn (McEachran) 8/16/26 91.1   8.7 1617 53.5   0.8 0702 54.3   0.3 98   3 27   15 - - - - - - - - 40   10
St. Helena-North 8/16/26 91.1   3.7 1638 53.2   0.6 0201 53.8   0.7 89   5 26   7 3.2 14.3   1.1 1510 SE | 146 0.00 0.00 0.185   0.031 501   33 20   10
St. Helena (NVV Office) 8/16/26 91.2   3.1 1604 55.7   1.5 0147 - - - 1.7 9.8   1.1 1416 E | 100 0.00 0.00 - - 20   10
Tiara Fria (East St. Helena) 8/16/26 88.3   3.2 1605 53.0   1.4 0137 55.9   0.7 91   5 34   2 2.4 11.6   0.7 1705 SSE | 156 0.00 0.00 - - 50   10
Prisoner Winery 8/16/26 91.8   4.0 1553 51.7   0.0 0123 56.0   0.8 97   0 32   3 1.3 7.7   1.2 1720 SE | 136 0.00 0.00 0.166   0.045 482   149 20   10
Rutherford Hill Estate 8/16/26 90.1   5.0 1555 54.5   0.1 0123 55.9   0.6 100   7 32   6 1.4 11.8   1.3 1620 S | 170 0.00 0.00 0.156   0.010 486   24 30   10
Rutherford-North (Mee Ln) 8/16/26 87.1   2.9 1544 49.4   0.7 0124 55.4   0.8 94   2 37   2 3.0 15.1   0.4 1554 SE | 132 0.00 0.00 0.164   0.010 459   13 50   10
Rutherford (STS) 8/16/26 89.7   3.5 1559 50.2   0.4 0128 57.7   0.6 92   0 41   2 1.9 11.6   1.5 1715 ENE | 63 0.00 0.00 0.178   0.008 542   10 0   0
Oakville-NE (Ranch 88) 8/16/26 87.9   2.8 1539 50.5   0.1 0131 54.5   1.1 92   5 35   1 2.3 14.5   0.4 1713 S | 175 0.00 0.00 0.164   0.005 467   1 100   0
OV561-East 8/16/26 89.2   4.0 1541 54.5   0.8 0136 - - - - - - - - - - - 80   10
Oakville 8/16/26 84.3   2.4 1539 51.8   0.7 0134 55.6   0.8 92   0 41   0 3.5 16.2   0.3 1654 SE | 132 0.00 0.00 0.179   0.007 526   4 100   0
OV518-West 8/16/26 83.8   2.0 1552 52.3   1.1 0147 - - - - - - - - - - - 100   0
To Kalon Remote (TKKE) 8/16/26 88.2   3.8 1600 51.1   0.2 0137 - - - - - - - - - - - 80   10
To Kalon 8/16/26 86.0   3.4 1528 51.6   0.4 0156 56.4   0.9 95   0 40   2 3.2 13.1   0.8 1642 SE | 136 0.00 0.00 0.172   0.009 495   9 80   20
To Kalon Remote (TKN5) 8/16/26 88.3   3.1 1524 51.8   0.6 0140 - - - - - - - - - - - 80   10
Yountville (Ranch 67) 8/16/26 83.4   3.0 1523 52.4   1.0 0120 54.7   0.8 92   3 40   2 3.8 14.5   2.5 1535 ESE | 105 0.00 0.00 0.180   0.013 572   20 100   0
Stags Leap Dist (Silverado Vineyards) 8/16/26 84.1   3.0 1522 52.4   1.0 0141 54.7   0.7 93   2 39   3 3.1 14.6   2.8 1534 SE | 140 0.00 0.00 0.173   0.020 507   41 100   20
Borreo (Soda Canyon) 8/16/26 82.4   4.4 1609 50.3   1.1 0123 53.8   0.1 97   2 34   11 1.6 9.2   1.3 1629 SSE | 161 0.00 0.00 0.174   0.024 571   72 70   10
Wappo Hill Floor 8/16/26 84.7   2.7 1523 52.6   1.8 0141 56.4   1.1 100   0 42   2 2.9 12.6   3.9 1532 SSE | 148 0.00 0.00 0.172   0.011 531   36 100   10
Stags Leap Dist (Chimney Rock) 8/16/26 82.9   2.8 1528 52.8   2.3 0136 57.6   0.7 96   2 49   2 2.8 12.4   0.4 1702 S | 176 0.00 0.00 0.152   0.014 476   39 100   0
Yountville-South (Ranch 87) 8/16/26 85.6   2.9 1530 51.7   1.5 0130 56.8   1.6 100   3 40   1 1.9 9.5   1.8 1645 SE | 142 0.00 0.00 0.158   0.007 498   15 90   10
Yountville-SE (Ranch 85) 8/16/26 82.1   2.0 1547 53.4   0.0 0120 56.8   1.0 96   2 46   0 2.7 12.0   2.4 1605 SSE | 152 0.00 0.00 - 0   0 100   0
Oak Knoll-East (Ranch 53) 8/16/26 82.5   2.3 1524 52.7   1.2 0106 55.5   0.9 94   3 42   1 2.4 12.1   1.2 1621 SE | 129 0.00 0.00 0.165   0.008 519   21 100   10
Napa-NW (Ranch 54) 8/16/26 85.2   2.8 1526 50.6   0.6 0153 55.6   1.1 98   6 40   1 0.7 7.5   1.1 1458 SE | 137 0.00 0.00 - 0   0 100   0
Napa-North (Ranch 29) 8/16/26 80.3   2.3 1557 55.1   0.0 0102 57.0   0.8 100   0 43   8 1.9 11.0   5.1 1646 S | 174 0.00 0.00 0.119   0.001 361   22 100   0
Max   95.1 - 55.7 - 57.7 100 49 3.8 16.2 - - 0.00 0.00 0.185 572 -
Avg   - - - - 55.6 - - 2.4 - - - - - - - -
Min   80.3 - 49.4 - 53.4 89 26 0.7 7.5 - - 0.00 0.00 0.119 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 8/17/26 4:38 AM 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 8/16/26 82.4   4.6 1409 55.1   5.1 0246 53.6   0.3 94   6 30   15 1.5 11.8   1.7 1612 SSE | 156 0.00 0.00 0.183   0.002 592   149 60   20
Mount George (Napa East) 8/16/26 81.8   5.5 1613 55.5   2.3 0536 55.2   0.0 95   1 39   11 1.7 9.9   1.0 1320 W | 266 0.00 0.00 0.160   0.020 525   56 90   20
Napa-East (Palmaz 300') 8/15/26 82.2   6.5 1649 53.8   3.6 2330 55.7   0.8 96   5 43   6 1.2 10.9   2.0 1559 W | 264 0.00 0.00 0.137   0.035 434   106 70   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') 8/16/26 81.4   7.1 1544 48.4   5.0 0555 54.1   1.2 100   0 29   26 2.3 11.2   1.6 1704 WSW | 246 0.00 0.03 0.176   0.044 584   111 90   20
Wooden Valley 8/16/26 86.5   7.9 1412 50.6   4.8 0705 52.6   1.4 95   3 28   15 3.2 15.0   1.9 1319 W | 276 0.00 0.00 0.204   0.034 596   36 50   10
Napa-West Upper (Truchard) 8/16/26 81.9   2.4 1520 53.1   0.8 0129 12.0   38.7 100   0 0   0 2.5 12.7   2.2 1429 SSE | 159 0.00 0.00 0.173   0.011 527   32 100   0
Napa-West Lower (Truchard) 8/16/26 81.4   2.0 1530 51.0   3.4 0101 55.1   0.5 94   0 45   0 - - - - - - - - 100   0
Napa-South (Toyon Farms) 8/16/26 79.2   2.5 1429 55.0   1.0 0533 57.9   0.7 100   1 55   1 3.2 12.3   2.5 1629 SSE | 160 0.00 0.00 0.097   0.005 299   10 100   0
Toyon Remote 1 8/16/26 79.3   0.3 1534 54.9   0.9 0549 - - - - - - - - - - - -
Toyon Remote 2 8/16/26 79.7   3.0 1532 55.3   0.4 0545 - - - - - - - - - - - -
Toyon Remote 3 8/16/26 80.6   2.6 1430 55.2   2.2 0556 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 8/16/26 79.9   2.2 1507 54.2   0.3 0558 55.2   0.3 95   0 47   1 2.3 11.5   2.3 1535 SE | 144 0.00 0.00 0.159   0.007 522   24 100   0
Carneros (Saintsbury) 8/16/26 77.7   2.2 1547 49.3   2.6 0705 54.2   0.2 100   0 50   2 3.8 13.5   1.8 1527 SSE | 155 0.00 0.00 - - 90   20
Suscol Lower (Ranch 35) 8/16/26 79.2   3.2 1548 55.0   1.5 0637 55.7   0.9 100   8 44   6 3.9 13.1   2.3 2206 SSE | 164 0.00 0.00 0.150   0.005 474   20 80   20
Suscol Mtn (Ranch 93) 8/16/26 84.0   5.0 1535 52.5   1.8 0732 55.8   0.2 100   1 38   14 3.5 12.4   4.2 1312 WNW | 302 0.00 0.00 - - 100   0
Suscol Upper (Ranch 92) 8/16/26 80.4   5.9 1553 52.8   2.0 0714 33.0   21.1 100   0 0   0 1.2 14.2   1.1 2158 S | 172 0.00 0.00 - - 60   20
Stanly (Ranch 45) 8/16/26 76.5   1.5 1504 53.3   0.7 0623 55.2   0.4 93   2 51   3 4.4 13.0   4.2 1558 S | 190 0.00 0.00 0.162   0.001 537   18 100   0
Carneros Upper (Ranch 81) 8/16/26 80.4   2.9 1751 53.4   1.4 0621 18.3   27.0 - - 4.3 17.0   6.4 2051 WSW | 250 - - - - 90   20
Carneros (Mitsuko) 8/16/26 77.8   1.8 1509 54.6   0.6 0623 - - - - - - - - - - - 100   0
Carneros Lower (Ranch 81) 8/16/26 79.8   1.2 1520 54.4   1.4 0628 55.7   0.0 94   2 48   1 1.7 12.1   1.1 1550 S | 176 0.00 0.00 0.154   0.011 505   42 100   0
Carneros (Milton Rd) 8/16/26 77.4   2.2 1525 55.5   1.4 0706 55.7   0.7 92   0 50   3 - - - - 0.00 0.00 - - 100   20
Max   86.5 - 55.5 - 57.9 100 55 4.4 17.0 - - 0.00 0.03 0.204 596 -
Avg   - - - - 48.7 - - 2.8 - - - - - - - -
Min   76.5 - 48.4 - 12.0 92 0 1.2 9.9 - - 0.00 0.00 0.097 299 -