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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 9/2/26 6:37 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 9/1/26 68.1   6.9 1411 41.9   5.9 0640 - - - - - - - 0.00 0.00 - - 80   10
Pope Valley (Weeks Lake) 9/1/26 74.2   5.9 1438 43.5   1.8 0544 47.8   1.6 100   0 35   0 2.7   0.6 17.5   1.8 1653 SW | 216 0.00 0.00 0.129   0.033 381   144 10   10
Dollarhide Base 9/1/26 78.2   3.2 1516 50.9   1.8 0703 52.0   1.6 97   2 38   4 4.9   0.6 21.0   1.8 1432 WSW | 258 0.00 0.00 0.153   0.031 438   137 10   10
Dollarhide 1AS Remote 9/1/26 78.4   2.2 1244 46.0   0.5 0700 51.0   0.4 93   0 37   4 4.3   0.4 21.6   0.2 1616 SSW | 212 - - - - 10   10
Dollarhide 16A Remote 9/1/26 77.2   1.7 1240 48.4   2.0 0642 51.9   1.6 97   0 39   5 - - - - - - - - 10   10
Dollarhide 18A Remote 9/1/26 75.6   3.8 1422 44.7   2.0 0650 50.6   0.1 97   1 40   2 - - - - - - - - 10   10
Hardin Rd (Eakle) 9/1/26 75.7   4.6 1524 48.2   0.5 0659 - - - - - - - - - - - 10   10
Angwin 9/1/26 66.6   4.2 1442 49.6   1.5 0503 48.2   0.5 100   0 41   5 3.1   0.5 15.6   0.1 1810 SSW | 195 0.00 0.00 0.019   0.009 0   0 80   10
Lower Angwin (Pioneer) 9/1/26 68.2   4.5 1511 50.9   10.4 0510 - - - 3.2   0.0 13.7   0.3 1732 W | 274 - - - - 80   10
Las Posadas (Cal Fire) 9/1/26 70.5   3.8 1345 50.8   0.4 0603 49.7   1.9 92   6 41   4 8.9   1.0 24.0   0.1 1908 SW | 228 0.00 0.00 0.132   0.023 369   147 -
Deer Park 9/1/26 75.4   3.1 1514 54.9   0.4 0038 50.2   1.7 87   5 36   2 3.8   0.1 19.7   5.8 1615 SW | 220 0.00 0.00 0.112   0.006 272   59 40   10
Lower Chiles Valley (Brown) 9/1/26 74.0   2.2 1531 48.6   3.6 0057 49.4   2.0 93   0 35   4 3.6   0.3 22.0   6.7 1636 NW | 307 0.00 0.01 0.122   0.041 355   203 10   10
Moss Creek Vineyard/Reservior 9/1/26 76.3   1.3 1402 55.4   5.9 0635 49.2   1.3 89   6 34   3 - - - - 0.00 0.00 - - 10   10
Max   78.4 - 55.4 - 52.0 100 41 8.9 24.0 - - 0.00 0.01 0.153 438 -
Avg   - - - - 50.0 - - 4.3 - - - - - - - -
Min   66.6 - 41.9 - 47.8 87 34 2.7 13.7 - - 0.00 0.00 0.019 0 -

Northern & Central Napa County

27 Stations

Daily Data | America/Los_Angeles
as of 9/2/26 6:37 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 9/1/26 77.9   1.8 1404 54.8   2.1 0027 53.3   1.3 92   2 39   2 - - - - 0.00 0.00 - - 10   10
Diamond Mtn (Schramsberg) 9/1/26 72.8   3.4 1522 53.7   0.8 0230 50.2   1.9 88   12 38   1 - - - - 0.00 0.00 - - 40   10
Diamond Mtn (McEachran) 9/1/26 71.9   7.7 1413 54.3   1.2 0250 51.0   1.5 90   2 41   4 - - - - - - - - 10   10
St. Helena-North 9/1/26 75.7   4.0 1445 54.4   2.5 0253 49.4   1.5 82   0 33   1 1.8 17.8   4.4 1620 NW | 321 0.00 0.00 0.117   0.020 350   86 0   0
St. Helena (NVV Office) 9/1/26 77.7   3.2 1407 57.2   0.1 0244 - - - 1.5 15.2   3.4 1759 WNW | 282 0.00 0.00 - - 10   10
Tiara Fria (East St. Helena) 9/1/26 76.2   3.1 1512 54.3   2.9 0050 51.0   1.3 86   0 34   5 2.7 15.3   1.9 1853 SW | 224 0.00 0.00 - - 40   10
Prisoner Winery 9/1/26 76.8   4.6 1527 53.2   0.3 0106 50.9   1.3 92   4 33   1 2.0 16.0   2.8 1609 WSW | 254 0.00 0.00 0.032   0.007 0   0 10   10
Rutherford Hill Estate 9/1/26 78.6   1.6 1534 56.1   0.5 0053 50.9   1.4 86   6 32   5 2.1 16.4   1.3 1701 W | 269 0.00 0.00 0.126   0.005 369   63 40   10
Rutherford-North (Mee Ln) 9/1/26 76.5   3.2 1520 52.8   1.2 0019 50.9   1.1 89   2 36   1 3.1 21.3   0.9 1603 WNW | 294 0.00 0.00 0.125   0.009 330   75 40   10
Rutherford (STS) 9/1/26 78.6   2.6 1447 53.5   1.5 2356 53.4   1.1 92   1 38   5 3.1 19.5   3.7 1809 WSW | 256 0.00 0.00 0.142   0.008 415   70 100   20
Oakville-NE (Ranch 88) 9/1/26 77.4   1.8 1410 54.3   2.1 0053 49.2   1.6 81   5 30   7 2.1 16.6   1.4 1544 WNW | 284 0.00 0.00 0.126   0.010 350   62 100   0
OV561-East 9/1/26 76.8   5.9 1422 57.8   0.7 0059 - - - - - - - - - - - 40   10
Oakville 9/1/26 76.3   1.0 1457 56.7   0.7 0059 50.7   1.3 83   4 34   7 3.9 19.7   3.4 1802 W | 267 0.00 0.00 0.154   0.002 434   47 80   10
OV518-West 9/1/26 73.9   2.2 1503 57.0   0.5 0059 - - - - - - - - - - - 80   10
To Kalon Remote (TKKE) 9/1/26 78.9   1.5 1426 56.8   0.1 0009 - - - - - - - - - - - 70   20
To Kalon 9/1/26 76.5   2.3 1418 56.9   0.1 0101 51.8   1.3 84   9 34   5 3.3 16.7   0.6 1904 WSW | 248 0.00 0.00 0.137   0.003 394   51 70   10
To Kalon Remote (TKN5) 9/1/26 76.9   3.2 1406 56.9   0.3 0059 - - - - - - - - - - - 70   20
Yountville (Ranch 67) 9/1/26 74.8   0.4 1518 51.8   3.2 0018 49.0   2.0 86   4 34   7 3.3 18.8   3.2 1500 SW | 235 0.00 0.00 0.135   0.012 416   80 80   10
Stags Leap Dist (Silverado Vineyards) 9/1/26 77.9   2.4 1525 52.8   2.3 0059 49.7   1.6 87   4 32   9 1.2 9.2   5.6 1635 S | 171 0.00 0.00 0.108   0.023 339   86 90   10
Borreo (Soda Canyon) 9/1/26 74.0   0.7 1512 50.7   2.4 0029 49.2   1.8 91   2 34   11 1.9 16.4   4.5 1506 S | 182 0.00 0.00 0.116   0.015 364   87 90   10
Wappo Hill Floor 9/1/26 76.2   0.2 1406 52.7   3.0 0053 50.4   1.9 89   5 33   9 2.9 21.7   6.8 1508 WSW | 249 0.00 0.00 0.133   0.008 378   75 100   10
Stags Leap Dist (Chimney Rock) 9/1/26 76.8   1.1 1602 52.9   3.0 0101 53.2   1.0 92   5 40   9 2.8 17.1   3.2 1433 SE | 138 0.00 0.00 0.119   0.004 335   64 100   10
Yountville-South (Ranch 87) 9/1/26 76.5   0.8 1523 52.5   3.2 0051 51.1   1.5 89   0 34   7 2.4 14.6   0.2 1500 WSW | 251 0.00 0.00 0.132   0.007 378   72 100   20
Yountville-SE (Ranch 85) 9/1/26 77.9   2.3 1511 53.5   1.9 0058 51.6   1.4 88   0 34   11 2.3 15.1   2.3 1650 WNW | 289 0.00 0.00 - 0   0 80   10
Oak Knoll-East (Ranch 53) 9/1/26 76.7   1.0 1523 54.2   1.3 0039 50.8   1.1 87   2 31   11 2.7 15.7   1.6 1414 S | 171 0.00 0.00 0.141   0.003 402   52 100   10
Napa-NW (Ranch 54) 9/1/26 77.7   1.3 1533 55.0   4.5 0048 51.2   0.6 86   4 32   11 2.2 13.4   0.4 1850 W | 268 0.00 0.00 - 0   0 100   10
Napa-North (Ranch 29) 9/1/26 75.6   0.1 1622 55.7   0.1 0059 52.8   0.1 88   0 37   9 3.2 20.8   5.3 1503 S | 176 0.00 0.00 0.110   0.001 296   46 100   10
Max   78.9 - 57.8 - 53.4 92 41 3.9 21.7 - - 0.00 0.00 0.154 434 -
Avg   - - - - 51.0 - - 2.5 - - - - - - - -
Min   71.9 - 50.7 - 49.0 81 30 1.2 9.2 - - 0.00 0.00 0.032 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 9/2/26 6:37 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 8/31/26 69.4   9.7 1349 49.0   2.7 0730 50.7   0.5 100   5 51   11 1.8 13.6   3.2 1432 SSE | 156 0.00 0.00 0.133   0.026 526   36 90   10
Mount George (Napa East) 9/1/26 73.5   0.2 1513 52.8   1.9 0101 52.4   0.1 96   11 41   6 2.4 16.0   2.1 1613 SSE | 158 0.00 0.00 0.136   0.013 431   5 50   10
Napa-East (Palmaz 300') 9/1/26 76.9   1.4 1320 54.7   0.7 0024 52.6   0.1 93   8 37   4 0.4 15.3   1.0 1714 SW | 230 0.00 0.00 0.114   0.002 379   1 80   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') 9/1/26 71.0   2.5 1344 53.1   3.0 0613 52.5   0.1 100   0 47   9 3.1 18.4   0.0 1618 WSW | 238 0.00 0.03 0.115   0.005 402   12 60   10
Wooden Valley 9/1/26 72.2   0.0 1520 52.5   0.6 0057 49.4   2.2 89   0 40   7 4.1 15.8   2.8 1334 SSW | 208 0.00 0.00 0.139   0.003 433   92 40   10
Napa-West Upper (Truchard) 9/1/26 77.3   0.0 1611 55.4   2.5 0527 53.1   9.1 100   0 35   35 5.0 20.3   1.0 1639 SW | 230 0.00 0.00 0.146   0.005 386   74 100   10
Napa-West Lower (Truchard) 9/1/26 77.4   1.3 1558 51.4   6.5 0051 51.9   0.4 90   4 34   4 - - - - - - - - 100   10
Napa-South (Toyon Farms) 9/1/26 75.4   0.7 1617 56.5   3.3 0051 55.2   0.5 96   0 45   7 4.9 19.2   1.5 1416 S | 175 0.00 0.00 0.085   0.004 208   57 80   20
Toyon Remote 1 9/1/26 78.6   1.3 1622 51.4   51.4 0100 - - - - - - - - - - - -
Toyon Remote 2 9/1/26 75.2   0.0 1656 52.2   1.6 0051 - - - - - - - - - - - -
Toyon Remote 3 9/1/26 78.9   0.9 1616 50.8   2.7 0059 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 9/1/26 76.0   0.9 1448 52.8   2.4 0521 52.2   0.4 94   1 35   9 2.8 19.2   1.0 1347 SSE | 166 0.00 0.00 0.128   0.005 383   61 100   10
Carneros (Saintsbury) 9/1/26 74.4   0.5 1531 53.9   4.5 0059 52.3   0.7 92   6 38   8 6.0 23.4   2.1 1509 SSW | 200 0.00 0.00 - - 70   10
Suscol Lower (Ranch 35) 9/1/26 75.2   0.7 1321 53.9   0.1 2353 52.5   0.3 91   3 40   3 6.4 24.0   3.8 1352 SSW | 192 0.00 0.00 0.148   0.013 388   3 60   10
Suscol Mtn (Ranch 93) 9/1/26 75.4   1.1 1320 54.3   2.9 0523 52.8   0.3 98   2 46   6 11.0 27.4   3.3 1832 NW | 314 0.00 0.00 - - 60   10
Suscol Upper (Ranch 92) 9/1/26 71.8   1.7 1338 55.2   2.8 0559 40.8   7.9 100   0 0   0 6.5 23.4   1.1 1229 WSW | 237 0.00 0.00 - - 30   10
Stanly (Ranch 45) 9/1/26 74.0   0.4 1732 53.6   0.4 0040 52.9   0.4 89   1 41   5 5.7 20.5   0.6 1529 SSW | 209 0.00 0.00 0.154   0.002 440   41 70   10
Carneros Upper (Ranch 81) 9/1/26 73.8   0.8 1338 56.9   4.8 0508 52.3   0.3 - - 10.0 25.8   3.8 1533 WNW | 290 - - - - 50   10
Carneros (Mitsuko) 9/1/26 75.2   0.2 1529 52.5   6.4 2345 - - - - - - - - - - - 100   20
Carneros Lower (Ranch 81) 9/1/26 78.6   1.0 1536 52.5   2.4 0059 53.1   0.4 91   7 37   4 1.1 15.9   1.1 1322 SSE | 150 0.00 0.00 0.017   0.006 0   0 80   20
Carneros (Milton Rd) 9/1/26 74.2   1.0 1645 52.5   0.8 0028 52.8   0.3 89   1 38   5 - - - - 0.00 0.00 - - 70   10
Max   78.9 - 56.9 - 55.2 100 47 11.0 27.4 - - 0.00 0.03 0.154 440 -
Avg   - - - - 51.8 - - 5.0 - - - - - - - -
Min   71.0 - 50.8 - 40.8 89 0 0.4 15.3 - - 0.00 0.00 0.017 0 -