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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 9/16/26 6:50 AM PDT
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 9/10/26 96.5   2.1 1544 62.8   3.4 2322 - - - - - - - 0.00 0.82 - - 50   10
Pope Valley (Weeks Lake) 9/15/26 87.9   1.3 1543 41.0   1.0 0644 46.2   4.2 100   0 18   5 1.8   0.3 13.8   2.2 1636 SW | 227 0.00 0.03 0.162   0.002 468   5 0   10
Dollarhide Base 9/15/26 91.7   0.2 1405 49.2   1.7 0636 51.1   4.9 92   3 23   7 3.1   0.3 16.7   0.8 1535 SW | 231 0.00 0.00 0.184   0.001 495   19 0   10
Dollarhide 1AS Remote 9/15/26 91.3   1.7 1334 41.1   2.1 0515 48.0   5.3 87   4 22   6 3.0   1.0 14.6   0.4 1525 SW | 222 - - - - 0   10
Dollarhide 16A Remote 9/15/26 89.6   2.9 1456 46.5   0.6 0623 50.8   4.2 93   4 26   10 - - - - - - - - 0   10
Dollarhide 18A Remote 9/15/26 88.9   1.9 1213 39.4   1.9 0650 47.5   5.2 92   3 23   7 - - - - - - - - 0   10
Hardin Rd (Eakle) 9/15/26 89.6   0.7 1540 44.3   1.6 0650 - - - - - - - - - - - 0   10
Angwin 9/15/26 80.0   0.1 1446 50.4   9.7 0023 44.4   7.2 100   51 19   1 3.9   0.6 15.0   3.2 1520 SSE | 158 0.00 0.30 0.066   0.011 0   0 100   0
Lower Angwin (Pioneer) 9/15/26 80.9   0.7 1532 42.9   1.1 0514 - - - 2.3   0.1 10.9   1.8 2358 W | 263 - - - - 100   0
Las Posadas (Cal Fire) 9/15/26 83.4   1.7 1455 50.0   2.2 0534 50.2   8.2 94   20 30   13 7.4   1.3 18.8   0.4 1640 SSW | 204 0.00 0.23 0.185   0.020 474   18 -
Deer Park 9/15/26 84.3   3.9 1533 52.9   2.0 0729 52.4   7.5 94   18 33   17 3.3   0.7 14.0   2.0 1605 SSE | 156 0.00 0.04 0.137   0.004 354   12 90   20
Lower Chiles Valley (Brown) 9/15/26 86.9   0.0 1544 41.7   0.4 0530 48.1   7.4 100   3 21   5 2.8   0.9 14.4   0.4 1407 NW | 311 0.00 0.14 0.171   0.002 527   30 30   10
Moss Creek Vineyard/Reservior 9/15/26 89.3   0.2 1446 47.2   1.7 0615 47.4   3.6 90   5 20   5 - - - - 0.00 0.04 - - 0   10
Max   91.7 - 52.9 - 52.4 100 33 7.4 18.8 - - 0.00 0.30 0.185 527 -
Avg   - - - - 48.6 - - 3.4 - - - - - - - -
Min   80.0 - 39.4 - 44.4 87 18 1.8 10.9 - - 0.00 0.00 0.066 0 -

Northern & Central Napa County

27 Stations

Daily Data | America/Los_Angeles
as of 9/16/26 6:50 AM PDT
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 9/15/26 91.4   1.0 1505 45.6   1.9 0630 51.4   3.7 93   0 28   7 - - - - 0.00 0.09 - - 20   10
Diamond Mtn (Schramsberg) 9/15/26 83.7   3.4 1614 53.2   0.8 0546 51.9   8.9 100   25 30   14 - - - - 0.00 0.13 - - 100   0
Diamond Mtn (McEachran) 9/15/26 85.2   2.6 1444 51.8   1.5 0721 51.2   6.9 92   16 34   19 - - - - - - - - 100   20
St. Helena-North 9/15/26 86.1   4.5 1521 47.8   0.8 0709 49.2   6.5 85   2 29   17 3.3 17.3   5.9 1628 SE | 139 0.00 0.11 0.167   0.022 446   17 20   10
St. Helena (NVV Office) 9/15/26 84.4   6.1 1527 48.9   0.1 0657 - - - 1.6 11.9   1.6 1316 ESE | 102 0.00 0.04 - - 30   20
Tiara Fria (East St. Helena) 9/15/26 82.7   6.5 1443 46.7   1.2 0548 50.5   5.5 89   0 36   19 2.3 14.0   1.4 1608 SSE | 160 0.00 0.02 - - 50   20
Prisoner Winery 9/15/26 86.4   4.7 1359 46.9   0.8 0514 51.1   5.6 94   1 32   17 1.7 10.6   0.1 1531 SSE | 159 0.00 0.06 0.030   0.001 0   0 0   0
Rutherford Hill Estate 9/15/26 84.4   6.7 1455 52.6   1.4 0708 53.0   5.9 94   8 34   18 1.7 14.9   4.8 1556 SSE | 154 0.00 0.08 0.139   0.000 435   34 40   20
Rutherford-North (Mee Ln) 9/15/26 82.8   8.0 1445 44.8   2.6 0525 50.3   4.8 90   4 36   21 3.6 19.3   5.9 1610 ESE | 123 0.00 0.06 0.158   0.008 444   15 80   20
Rutherford (STS) 9/15/26 84.9   7.3 1502 44.4   1.8 0446 52.7   4.3 92   0 39   19 2.4 17.9   5.0 1628 SE | 124 0.00 0.05 0.166   0.003 511   11 70   20
Oakville-NE (Ranch 88) 9/15/26 82.9   8.4 1527 43.7   1.6 0521 48.0   4.7 84   3 33   20 2.6 17.4   6.8 1604 SSW | 206 0.00 0.04 0.153   0.007 436   0 100   0
OV561-East 9/15/26 83.1   6.4 1529 46.5   1.6 0514 - - - - - - - - - - - 20   20
Oakville 9/15/26 80.2   8.7 1455 44.8   2.2 0528 50.0   4.5 88   3 39   23 3.9 18.8   7.0 1553 SSE | 151 0.00 0.03 0.162   0.007 479   19 100   10
OV518-West 9/15/26 80.1   7.5 1345 46.1   2.2 0506 - - - - - - - - - - - 100   10
To Kalon Remote (TKKE) 9/15/26 83.1   7.5 1502 45.6   0.5 0513 - - - - - - - - - - - 100   20
To Kalon 9/15/26 81.2   8.6 1454 46.5   1.9 0524 51.4   4.8 92   2 39   21 3.7 17.4   6.3 1520 SE | 145 0.00 0.00 0.163   0.000 484   3 100   20
To Kalon Remote (TKN5) 9/15/26 84.7   5.1 1509 46.2   1.7 0512 - - - - - - - - - - - 100   10
Yountville (Ranch 67) 9/15/26 78.7   8.2 1511 44.5   2.2 0502 49.5   3.6 90   1 39   22 3.9 18.7   5.1 1558 SSE | 160 0.00 0.05 0.164   0.012 551   0 100   10
Stags Leap Dist (Silverado Vineyards) 9/15/26 79.1   9.2 1454 44.9   1.7 0505 50.1   3.5 93   1 39   20 2.9 18.2   5.7 1610 SSE | 152 0.00 0.07 0.157   0.017 483   18 90   10
Borreo (Soda Canyon) 9/15/26 77.3   7.5 1449 47.8   3.3 0450 50.7   4.1 96   1 38   15 2.0 10.6   1.1 1404 SSE | 150 0.00 0.31 0.142   0.015 473   6 100   0
Wappo Hill Floor 9/15/26 80.2   8.2 1445 44.3   1.2 0514 50.5   2.0 100   0 40   18 3.2 14.5   1.9 1606 SE | 124 0.00 0.10 0.160   0.013 497   13 100   20
Stags Leap Dist (Chimney Rock) 9/15/26 78.5   9.3 1502 43.7   1.0 0453 52.4   1.6 97   1 47   19 2.9 13.4   0.6 1621 SE | 141 0.00 0.10 0.140   0.017 451   6 100   10
Yountville-South (Ranch 87) 9/15/26 81.6   7.5 1440 45.5   1.5 0431 50.9   2.5 92   7 37   16 2.0 13.4   0.3 1617 S | 169 0.00 0.09 0.137   0.006 421   26 70   20
Yountville-SE (Ranch 85) 9/15/26 78.1   9.9 1431 45.5   1.2 0452 51.5   2.4 93   0 43   20 3.2 14.9   0.3 1450 S | 169 0.00 0.08 - 0   0 100   10
Oak Knoll-East (Ranch 53) 9/15/26 78.6   9.0 1509 46.5   2.4 0505 50.4   2.8 88   3 40   19 2.5 12.1   0.3 1443 S | 180 0.00 0.15 0.159   0.016 528   0 100   10
Napa-NW (Ranch 54) 9/15/26 80.7   8.9 1442 48.1   3.5 0430 50.6   3.6 87   4 38   19 0.6 8.2   2.8 1154 S | 186 0.00 0.18 - 0   0 100   10
Napa-North (Ranch 29) 9/15/26 77.4   8.1 1416 46.5   1.9 0515 52.1   1.8 100   0 44   18 1.7 13.4   0.8 1536 S | 183 0.00 0.10 0.101   0.013 308   6 90   10
Max   91.4 - 53.2 - 53.0 100 47 3.9 19.3 - - 0.00 0.31 0.167 551 -
Avg   - - - - 50.9 - - 2.6 - - - - - - - -
Min   77.3 - 43.7 - 48.0 84 28 0.6 8.2 - - 0.00 0.00 0.030 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 9/16/26 6:50 AM PDT
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 9/15/26 79.0   2.7 1447 51.5   8.7 0028 49.6   9.4 94   38 36   16 1.7 11.3   0.6 1454 SSW | 194 0.00 0.45 0.221   0.031 916   282 100   0
Mount George (Napa East) 9/15/26 77.0   15.0 1422 47.3   3.8 0644 51.7   4.1 94   1 44   16 1.6 12.0   2.3 1522 W | 260 0.00 0.16 0.150   0.009 518   7 100   0
Napa-East (Palmaz 300') 9/15/26 81.2   8.3 1417 50.4   3.8 0653 52.8   4.0 100   0 36   14 2.1 11.1   0.7 1531 WSW | 254 0.00 0.16 0.146   0.007 470   8 100   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') 9/15/26 77.0   4.7 1404 48.8   0.5 0536 52.5   7.0 100   6 42   13 2.9 12.6   0.1 0018 SSW | 195 0.00 0.33 0.147   0.016 506   6 90   10
Wooden Valley 9/15/26 81.6   3.1 1429 49.4   3.6 0206 49.3   5.9 92   1 27   10 4.2 16.2   0.4 2222 WSW | 252 0.00 0.04 0.172   0.011 515   3 100   10
Napa-West Upper (Truchard) 9/15/26 78.9   8.9 1425 51.8   0.5 0712 23.9   26.3 100   0 0   19 3.3 14.2   1.9 1558 SSE | 165 0.00 0.10 0.224   0.128 904   495 100   10
Napa-West Lower (Truchard) 9/15/26 78.9   8.5 1442 43.9   2.3 0503 50.1   3.9 97   0 40   20 - - - - - - - - 100   10
Napa-South (Toyon Farms) 9/15/26 75.7   8.9 1332 51.8   1.8 0702 55.3   2.1 100   2 51   24 3.8 13.6   3.4 1609 S | 175 0.00 0.07 0.078   0.028 241   8 90   10
Toyon Remote 1 9/15/26 76.2   9.2 1410 48.5   3.7 0419 - - - - - - - - - - - -
Toyon Remote 2 9/15/26 75.0   9.0 1445 48.1   3.8 0417 - - - - - - - - - - - -
Toyon Remote 3 9/15/26 75.9   10.4 1412 46.7   2.3 0505 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 9/15/26 75.3   11.8 1353 50.6   3.1 0705 52.4   4.6 95   3 46   26 2.9 13.9   1.5 1339 SSE | 164 0.00 0.08 0.148   0.018 504   4 100   10
Carneros (Saintsbury) 9/15/26 73.9   9.7 1442 47.1   1.7 0522 51.9   3.5 100   2 48   25 4.2 15.6   1.3 1533 SSW | 193 0.00 0.08 - - 90   10
Suscol Lower (Ranch 35) 9/15/26 74.9   10.1 1449 50.4   2.0 0645 52.9   2.8 100   7 47   22 4.3 16.1   0.8 1657 SSE | 154 0.00 0.15 0.142   0.033 466   16 90   10
Suscol Mtn (Ranch 93) 9/15/26 80.3   7.1 1446 52.4   2.0 0005 54.3   3.5 97   4 44   18 3.5 14.4   1.8 1532 WNW | 300 0.00 0.33 - - 80   10
Suscol Upper (Ranch 92) 9/15/26 73.9   9.3 1511 53.2   1.2 0035 27.1   23.7 100   3 0   25 2.3 12.8   3.2 1950 S | 177 0.00 0.15 - - 40   10
Stanly (Ranch 45) 9/15/26 74.8   9.4 1444 50.5   4.5 0530 52.5   1.3 93   2 49   23 4.8 15.9   1.8 1506 S | 188 0.00 0.15 0.148   0.032 484   8 100   0
Carneros Upper (Ranch 81) 9/15/26 76.7   8.6 1431 54.4   0.4 2252 52.9   4.1 - - 6.0 17.9   4.8 1535 SSW | 197 - - - - 90   10
Carneros (Mitsuko) 9/15/26 74.8   9.7 1421 43.9   1.6 0511 - - - - - - - - - - - 90   10
Carneros Lower (Ranch 81) 9/15/26 77.6   7.9 1402 50.5   4.0 0424 47.8   0.9 100   0 0   0 1.8 13.1   0.5 1542 S | 184 0.00 0.01 0.025   0.007 0   0 90   10
Carneros (Milton Rd) 9/15/26 73.9   9.5 1406 48.4   4.1 2326 51.9   2.4 94   0 51   25 - - - - 0.00 0.00 - - 90   10
Max   81.6 - 54.4 - 55.3 100 51 6.0 17.9 - - 0.00 0.45 0.224 916 -
Avg   - - - - 48.8 - - 3.3 - - - - - - - -
Min   73.9 - 43.9 - 23.9 92 0 1.6 11.1 - - 0.00 0.00 0.025 0 -