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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 9/18/26 12:41 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 9/17/26 73.8   1.2 1559 45.6   4.1 0210 - - - - - - - 0.00 0.82 - - 80   10
Pope Valley (Weeks Lake) 9/17/26 76.4   1.1 1606 43.0   2.6 0654 48.0   0.1 100   0 38   3 1.5   0.8 12.5   2.8 1432 E | 80 0.00 0.03 0.125   0.015 423   42 20   20
Dollarhide Base 9/17/26 79.5   0.9 1604 50.5   0.3 0710 52.8   0.3 96   1 40   1 2.5   2.5 14.8   3.2 1822 SW | 236 0.00 0.00 0.124   0.033 398   97 40   20
Dollarhide 1AS Remote 9/17/26 79.8   1.1 1714 47.8   0.2 0716 51.7   0.2 93   0 39   3 2.3   2.6 13.3   8.5 1826 WSW | 258 - - - - 40   20
Dollarhide 16A Remote 9/17/26 79.4   1.5 1553 47.8   0.6 0712 52.4   0.1 97   0 41   3 - - - - - - - - 40   20
Dollarhide 18A Remote 9/17/26 79.8   1.4 1601 48.0   0.7 0721 51.4   0.0 94   1 39   4 - - - - - - - - 0   0
Hardin Rd (Eakle) 9/17/26 78.8   0.6 1556 48.8   1.0 0720 - - - - - - - - - - - 20   20
Angwin 9/17/26 69.0   1.0 1600 48.8   1.1 0124 49.0   1.0 100   0 48   2 2.3   1.1 11.8   3.8 0711 SSE | 165 0.00 0.30 0.018   0.009 0   0 80   10
Lower Angwin (Pioneer) 9/17/26 71.8   0.8 1657 43.2   5.9 0036 - - - 1.9   1.7 10.4   2.9 1833 SSW | 200 - - - - 80   10
Las Posadas (Cal Fire) 9/17/26 73.5   1.0 1634 49.6   1.2 0704 50.4   0.1 96   1 44   4 5.5   4.3 19.9   7.6 1849 WSW | 242 0.00 0.23 0.108   0.032 327   114 -
Deer Park 9/17/26 77.5   0.9 1632 52.5   1.7 0717 50.6   0.0 91   1 39   3 2.8   0.8 13.7   3.6 1727 SW | 223 0.00 0.04 0.095   0.020 254   69 70   10
Lower Chiles Valley (Brown) 9/17/26 75.9   3.1 1639 43.8   6.8 0721 49.4   1.0 100   7 39   6 2.0   1.7 9.8   7.1 1504 W | 274 0.00 0.14 0.116   0.028 395   113 10   10
Moss Creek Vineyard/Reservior 9/17/26 78.0   2.6 1656 46.8   4.0 0720 49.9   0.3 95   4 36   7 - - - - 0.00 0.04 - - 0   0
Max   79.8 - 52.5 - 52.8 100 48 5.5 19.9 - - 0.00 0.82 0.125 423 -
Avg   - - - - 50.6 - - 2.6 - - - - - - - -
Min   69.0 - 43.0 - 48.0 91 36 1.5 9.8 - - 0.00 0.00 0.018 0 -

Northern & Central Napa County

27 Stations

Daily Data | America/Los_Angeles
as of 9/18/26 12:41 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 9/17/26 79.6   0.7 1409 51.8   4.0 0046 53.1   0.1 91   2 42   0 - - - - 0.00 0.09 - - 30   20
Diamond Mtn (Schramsberg) 9/17/26 74.0   0.9 1644 53.0   0.8 0647 50.2   0.2 89   1 43   3 - - - - 0.00 0.13 - - 80   10
Diamond Mtn (McEachran) 9/17/26 78.3   0.2 1621 54.2   0.4 0120 51.1   0.1 88   1 39   2 - - - - - - - - 80   10
St. Helena-North 9/17/26 77.5   1.6 1624 52.0   2.0 0702 49.0   0.2 85   5 36   2 2.2 13.6   4.4 1413 SSE | 147 0.00 0.11 0.115   0.020 346   73 60   20
St. Helena (NVV Office) 9/17/26 79.8   1.2 1714 50.3   3.4 0626 - - - 1.0 10.9   2.9 1741 WSW | 256 0.00 0.04 - - 70   20
Tiara Fria (East St. Helena) 9/17/26 77.8   0.9 1644 46.8   4.8 0653 49.3   1.2 90   5 38   1 1.6 12.6   3.5 1820 WNW | 293 0.00 0.02 - - 60   10
Prisoner Winery 9/17/26 80.0   1.0 1607 46.5   3.5 0624 50.0   0.9 97   3 36   2 1.1 8.8   6.4 1339 SSW | 206 0.00 0.06 0.018   0.011 0   0 40   20
Rutherford Hill Estate 9/17/26 79.3   2.3 1602 51.2   2.7 0604 51.4   0.2 100   11 36   3 1.6 12.1   7.0 1841 NW | 318 0.00 0.08 0.100   0.027 324   96 20   10
Rutherford-North (Mee Ln) 9/17/26 80.1   1.4 1624 42.7   5.6 0632 48.9   1.8 94   4 37   2 1.5 11.6   11.0 1734 WSW | 241 0.00 0.06 0.108   0.032 342   82 100   0
Rutherford (STS) 9/17/26 80.7   1.7 1508 43.6   5.6 0616 51.2   1.8 92   0 42   2 1.4 11.5   7.7 1750 W | 260 0.00 0.05 0.110   0.039 369   116 100   10
Oakville-NE (Ranch 88) 9/17/26 78.9   2.5 1604 42.5   8.0 0635 47.4   2.2 88   4 36   3 0.8 10.0   11.1 1731 S | 170 0.00 0.04 0.095   0.043 306   106 100   0
OV561-East 9/17/26 82.5   3.8 1617 45.9   7.9 0552 - - - - - - - - - - - 60   20
Oakville 9/17/26 77.3   2.4 1537 44.6   7.5 0628 49.1   1.7 92   7 39   4 1.7 11.8   9.5 1819 W | 261 0.00 0.03 0.107   0.038 346   119 80   10
OV518-West 9/17/26 76.0   1.6 1744 45.5   7.4 0626 - - - - - - - - - - - 90   10
To Kalon Remote (TKKE) 9/17/26 79.6   1.9 1703 45.5   8.1 0553 - - - - - - - - - - - 100   0
To Kalon 9/17/26 77.5   0.9 1518 45.9   8.3 0622 50.8   0.9 95   6 41   0 1.7 11.8   6.6 1802 WSW | 242 0.00 0.00 0.095   0.049 298   167 80   10
To Kalon Remote (TKN5) 9/17/26 79.1   1.2 1618 46.1   9.0 0617 - - - - - - - - - - - 100   0
Yountville (Ranch 67) 9/17/26 76.4   3.6 1355 44.3   7.4 0626 48.4   1.5 93   7 38   6 1.6 10.7   9.5 1804 SSE | 147 0.00 0.05 0.120   0.031 444   89 80   10
Stags Leap Dist (Silverado Vineyards) 9/17/26 75.4   2.3 1554 44.9   7.5 0641 49.0   1.3 94   6 42   2 1.3 11.5   8.2 1802 SSE | 148 0.00 0.07 0.108   0.039 346   133 90   10
Borreo (Soda Canyon) 9/17/26 74.1   3.8 1538 46.2   5.2 0554 49.5   0.9 96   4 42   7 1.7 10.3   7.5 1538 W | 264 0.00 0.31 0.099   0.027 329   113 90   10
Wappo Hill Floor 9/17/26 77.2   3.3 1512 44.4   7.5 0606 50.3   1.1 100   2 41   5 1.9 11.3   6.2 1417 SSW | 207 0.00 0.10 0.109   0.036 345   130 100   10
Stags Leap Dist (Chimney Rock) 9/17/26 77.0   3.1 1518 44.8   8.4 0549 52.1   1.4 98   6 48   3 1.8 11.5   5.2 1646 SW | 225 0.00 0.10 0.102   0.026 325   108 100   10
Yountville-South (Ranch 87) 9/17/26 78.0   3.8 1519 45.6   4.8 0528 51.0   0.7 100   0 42   4 1.4 11.2   5.7 1506 S | 182 0.00 0.09 0.106   0.027 343   89 100   10
Yountville-SE (Ranch 85) 9/17/26 77.2   3.0 1557 46.3   6.5 0539 51.0   1.1 96   4 43   3 1.5 10.1   6.9 1655 S | 183 0.00 0.08 - 0   0 100   10
Oak Knoll-East (Ranch 53) 9/17/26 77.2   2.7 1551 48.2   2.9 0439 50.3   0.7 92   1 42   2 1.5 11.2   5.0 1750 S | 190 0.00 0.15 0.113   0.031 370   114 100   0
Napa-NW (Ranch 54) 9/17/26 77.7   2.8 1621 50.3   0.5 0429 51.1   0.2 92   1 42   1 0.8 9.1   5.0 1545 SW | 218 0.00 0.18 - 0   0 100   10
Napa-North (Ranch 29) 9/17/26 76.2   3.2 1510 52.3   2.2 0053 52.5   0.2 100   10 44   4 1.5 12.6   3.9 1616 S | 184 0.00 0.10 0.092   0.009 281   28 70   10
Max   82.5 - 54.2 - 53.1 100 48 2.2 13.6 - - 0.00 0.31 0.120 444 -
Avg   - - - - 50.3 - - 1.5 - - - - - - - -
Min   74.0 - 42.5 - 47.4 85 36 0.8 8.8 - - 0.00 0.00 0.018 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 9/18/26 12:41 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 9/16/26 67.2   11.7 1324 49.1   2.4 0646 49.8   0.3 100   6 54   18 2.3 15.8   4.5 1316 S | 184 0.00 0.45 0.276   0.055 1,369   453 90   10
Mount George (Napa East) 9/17/26 77.3   5.3 1358 52.1   4.4 0101 52.6   1.7 91   2 46   6 1.4 10.6   8.8 1318 WSW | 249 0.00 0.16 0.110   0.019 374   85 80   10
Napa-East (Palmaz 300') 9/17/26 78.9   4.7 1434 52.7   2.1 0055 52.1   0.1 92   3 39   6 1.3 15.1   0.7 1434 SW | 230 0.00 0.16 0.105   0.020 336   81 100   10
Napa-East (Palmaz 1200') 9/14/26 80.8   4.1 1344 47.1   4.1 0557 46.5   1.6 92   8 29   22 2.4 12.0   0.9 1614 SW | 226 - - 0.153   0.004 498   20 20   20
Napa-East (Palmaz 1400') 9/17/26 71.5   3.5 1426 51.4   0.5 0359 52.1   0.3 100   0 50   9 2.1 11.5   5.0 1506 SSW | 198 0.00 0.33 0.100   0.009 361   55 70   10
Wooden Valley 9/17/26 73.6   3.5 1452 49.2   4.5 0627 49.7   0.6 94   8 43   8 2.5 14.6   9.2 1812 S | 176 0.00 0.04 0.120   0.018 401   80 80   10
Napa-West Upper (Truchard) 9/17/26 77.0   1.2 1536 54.2   1.8 0120 52.6   0.1 98   2 42   1 2.4 13.6   7.3 1813 S | 181 0.00 0.10 0.172   0.037 710   153 80   10
Napa-West Lower (Truchard) 9/17/26 78.4   3.1 1532 48.6   2.0 0059 51.2   0.6 88   4 40   3 - - - - - - - - 80   10
Napa-South (Toyon Farms) 9/17/26 75.0   1.8 1500 54.8   1.7 0059 54.6   0.4 91   4 52   0 2.9 14.0   6.4 1559 S | 176 0.00 0.07 0.068   0.012 191   56 70   10
Toyon Remote 1 9/17/26 76.0   1.0 1500 50.3   0.3 0053 - - - - - - - - - - - -
Toyon Remote 2 9/17/26 75.7   2.4 1534 51.4   0.3 0037 - - - - - - - - - - - -
Toyon Remote 3 9/17/26 76.1   0.8 1530 50.5   0.3 0056 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 9/17/26 75.3   1.2 1553 52.2   2.6 0039 51.8   0.0 88   1 45   0 2.3 12.5   6.4 1909 NW | 309 0.00 0.08 0.096   0.032 299   144 80   10
Carneros (Saintsbury) 9/17/26 73.9   1.0 1504 52.6   1.6 0048 52.1   0.3 87   8 46   0 3.8 14.4   8.1 1845 W | 269 0.00 0.08 - - 70   10
Suscol Lower (Ranch 35) 9/17/26 74.3   3.0 1457 52.3   1.4 0055 52.0   0.2 89   1 44   4 3.8 14.5   7.5 1830 SSW | 197 0.00 0.15 0.112   0.022 322   92 70   10
Suscol Mtn (Ranch 93) 9/17/26 75.3   3.5 1341 53.8   1.1 0101 52.4   0.2 94   1 49   6 5.7 17.7   9.4 1438 NW | 310 0.00 0.33 - - 60   10
Suscol Upper (Ranch 92) 9/17/26 72.0   3.7 1520 54.1   0.7 0109 52.4   0.5 93   7 49   6 2.2 17.1   5.6 1552 SW | 234 0.00 0.15 - - 20   10
Stanly (Ranch 45) 9/17/26 74.9   3.2 1532 51.6   1.0 0049 52.5   0.4 89   3 46   3 4.4 14.5   9.2 1822 WSW | 238 0.00 0.15 0.119   0.016 345   90 80   10
Carneros Upper (Ranch 81) 9/17/26 74.0   1.8 1641 56.2   1.3 0103 52.3   0.6 - - 5.8 25.2   5.5 1855 W | 261 - - - - 70   10
Carneros (Mitsuko) 9/17/26 74.3   0.3 1540 47.7   2.1 0101 - - - - - - - - - - - 70   10
Carneros Lower (Ranch 81) 9/17/26 76.4   3.2 1552 56.0   1.7 0101 53.4   0.6 89   3 45   6 1.4 11.6   7.8 1717 SSE | 167 0.00 0.01 0.020   0.003 4   1 70   10
Carneros (Milton Rd) 9/17/26 73.6   0.5 1534 51.7   3.6 0029 52.6   0.5 87   5 47   0 - - - - 0.00 0.00 - - 70   10
Max   78.9 - 56.2 - 54.6 100 52 5.8 25.2 - - 0.00 0.33 0.172 710 -
Avg   - - - - 52.3 - - 3.0 - - - - - - - -
Min   71.5 - 47.7 - 49.7 87 39 1.3 10.6 - - 0.00 0.00 0.020 4 -