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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 8/23/26 10:12 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 8/22/26 89.3   2.5 1544 52.0   3.6 0645 - - - - - - - 0.00 0.00 - - 60   10
Pope Valley (Weeks Lake) 8/22/26 92.6   0.1 1354 44.3   7.2 0622 46.9   0.5 100   8 15   1 1.6   0.2 12.5   2.8 1520 SW | 229 0.00 0.00 0.186   0.009 518   12 0   0
Dollarhide Base 8/22/26 95.8   1.9 1447 52.7   3.7 0611 52.6   0.2 92   3 22   6 2.9   0.7 13.0   4.3 1513 WSW | 246 0.00 0.00 0.220   0.008 570   16 0   0
Dollarhide 1AS Remote 8/22/26 97.3   1.9 1444 46.0   6.7 0624 50.0   1.1 91   1 20   6 2.1   0.7 15.5   0.5 1354 S | 184 - - - - 0   0
Dollarhide 16A Remote 8/22/26 95.1   0.7 1456 52.3   3.7 0713 52.2   0.1 92   4 22   6 - - - - - - - - 0   0
Dollarhide 18A Remote 8/22/26 93.0   0.4 1445 43.9   7.6 0643 50.0   0.9 95   2 24   9 - - - - - - - - 0   0
Hardin Rd (Eakle) 8/22/26 93.7   0.7 1444 49.3   5.3 0643 - - - - - - - - - - - 0   0
Angwin 8/22/26 84.9   2.1 1427 63.6   2.6 0616 37.6   1.0 45   8 17   4 2.6   0.1 11.7   2.8 1653 SE | 140 0.00 0.00 0.063   0.002 0   0 100   0
Lower Angwin (Pioneer) 8/22/26 85.2   0.5 1428 42.9   7.5 0630 - - - 1.6   0.6 12.1   1.0 1756 WSW | 239 - - - - 100   0
Las Posadas (Cal Fire) 8/22/26 88.2   0.5 1443 49.4   3.2 0645 50.5   1.2 96   0 27   15 7.5   1.0 20.0   2.0 1549 SW | 220 0.00 0.00 0.229   0.007 517   14 -
Deer Park 8/22/26 90.8   0.5 1503 52.8   1.5 0557 51.9   2.0 94   0 24   15 2.4   1.0 11.3   4.7 1429 SW | 228 0.00 0.00 0.154   0.021 381   18 0   0
Lower Chiles Valley (Brown) 8/22/26 91.5   2.1 1515 50.7   2.6 0620 49.1   0.9 94   6 19   2 3.6   1.0 13.9   2.5 1405 WNW | 301 0.00 0.00 0.202   0.005 581   11 0   0
Moss Creek Vineyard/Reservior 8/22/26 96.2   1.4 1425 51.8   2.9 0616 47.1   1.7 93   4 12   3 - - - - 0.00 0.00 - - 0   0
Max   97.3 - 63.6 - 52.6 100 27 7.5 20.0 - - 0.00 0.00 0.229 581 -
Avg   - - - - 48.8 - - 3.0 - - - - - - - -
Min   84.9 - 42.9 - 37.6 45 12 1.6 11.3 - - 0.00 0.00 0.063 0 -

Northern & Central Napa County

27 Stations

Daily Data | America/Los_Angeles
as of 8/23/26 10:12 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 8/22/26 95.6   3.2 1550 48.1   6.9 0655 51.9   2.6 96   3 23   5 - - - - 0.00 0.00 - - 10   10
Diamond Mtn (Schramsberg) 8/22/26 91.3   1.6 1538 52.5   0.5 0628 48.3   1.1 92   8 18   3 - - - - 0.00 0.00 - - 0   0
Diamond Mtn (McEachran) 8/22/26 91.9   3.1 1538 52.6   1.6 0617 48.7   1.5 90   4 20   6 - - - - - - - - 0   0
St. Helena-North 8/22/26 92.2   3.1 1423 49.9   5.0 0650 49.2   1.0 87   1 22   12 2.3 12.1   1.5 1628 SSE | 157 0.00 0.00 0.183   0.003 484   24 0   0
St. Helena (NVV Office) 8/22/26 92.1   3.0 1433 50.4   5.6 0654 - - - 1.1 9.7   0.5 1641 SE | 138 0.00 0.00 - - 0   0
Tiara Fria (East St. Helena) 8/22/26 88.4   3.0 1433 48.1   5.7 0611 51.8   0.1 88   5 31   18 1.7 11.4   0.7 1400 SE | 138 0.00 0.00 - - 0   0
Prisoner Winery 8/22/26 91.2   4.0 1437 47.2   4.9 0532 52.6   1.8 98   2 29   16 1.0 7.6   3.8 1511 E | 85 0.00 0.00 0.026   0.047 0   132 0   0
Rutherford Hill Estate 8/22/26 89.0   4.8 1416 52.3   1.9 0654 53.7   1.2 100   0 29   17 1.5 12.3   0.4 1616 SSW | 208 0.00 0.00 0.158   0.009 472   25 0   0
Rutherford-North (Mee Ln) 8/22/26 87.2   4.3 1434 45.2   4.5 0556 51.2   0.3 90   3 33   19 2.3 13.8   1.8 1620 SE | 125 0.00 0.00 0.176   0.000 479   4 0   0
Rutherford (STS) 8/22/26 90.8   1.9 1410 44.4   5.4 0636 54.2   0.5 92   0 36   17 1.6 11.6   2.3 1611 ESE | 123 0.00 0.00 0.191   0.000 575   12 0   0
Oakville-NE (Ranch 88) 8/22/26 89.0   2.6 1512 44.4   5.8 0633 49.3   1.1 86   5 30   18 1.8 14.7   2.3 1626 S | 177 0.00 0.00 0.178   0.006 506   27 100   0
OV561-East 8/22/26 91.2   3.6 1646 47.5   4.7 0651 - - - - - - - - - - - 20   10
Oakville 8/22/26 85.5   3.9 1511 46.0   4.8 0638 51.4   0.8 91   2 36   16 2.9 15.4   0.7 1444 SSE | 154 0.00 0.00 0.199   0.006 564   20 100   10
OV518-West 8/22/26 85.8   4.3 1504 46.9   4.1 0631 - - - - - - - - - - - 100   10
To Kalon Remote (TKKE) 8/22/26 88.9   3.6 1511 46.8   4.5 0602 - - - - - - - - - - - 20   10
To Kalon 8/22/26 87.0   2.9 1510 47.7   4.0 0643 53.2   0.3 95   1 35   12 2.6 15.9   3.5 1500 SSE | 166 0.00 0.00 0.194   0.014 554   45 80   10
To Kalon Remote (TKN5) 8/22/26 90.0   1.0 1433 47.0   5.0 0641 - - - - - - - - - - - 20   10
Yountville (Ranch 67) 8/22/26 84.3   3.3 1522 45.7   4.5 0623 51.1   1.2 91   1 34   17 2.8 15.7   1.8 1503 SE | 127 0.00 0.00 0.201   0.013 628   44 100   10
Stags Leap Dist (Silverado Vineyards) 8/22/26 84.9   4.4 1520 45.9   5.2 0628 51.4   1.1 94   1 33   6 2.5 16.4   0.3 1541 SSE | 147 0.00 0.00 0.200   0.012 580   56 90   10
Borreo (Soda Canyon) 8/22/26 83.1   2.3 1423 46.7   2.1 0646 50.4   0.9 97   1 32   3 1.6 9.8   1.6 1431 S | 176 0.00 0.00 0.183   0.002 586   2 100   0
Wappo Hill Floor 8/22/26 85.7   3.3 1521 45.4   5.2 0630 52.6   1.4 100   0 34   5 2.1 12.3   3.0 1435 ESE | 122 0.00 0.00 0.184   0.002 554   15 100   10
Stags Leap Dist (Chimney Rock) 8/22/26 84.0   3.2 1519 45.1   5.5 0633 54.2   1.5 98   1 41   4 2.0 11.0   2.6 1608 SE | 142 0.00 0.00 0.166   0.003 508   18 100   10
Yountville-South (Ranch 87) 8/22/26 86.7   2.7 1517 47.2   4.2 0634 52.9   1.2 100   0 34   5 1.4 10.9   0.4 1334 SSE | 155 0.00 0.00 0.171   0.001 534   5 30   10
Yountville-SE (Ranch 85) 8/22/26 84.1   2.3 1511 47.7   4.0 0633 53.6   0.9 96   0 37   6 2.0 12.0   1.0 1451 S | 183 0.00 0.00 - 0   0 100   10
Oak Knoll-East (Ranch 53) 8/22/26 84.2   3.2 1418 47.7   4.1 0636 52.4   0.9 91   2 35   5 1.9 12.5   1.0 1433 SE | 131 0.00 0.00 0.184   0.001 573   18 100   10
Napa-NW (Ranch 54) 8/22/26 88.9   1.7 1828 48.8   2.9 0642 52.8   0.5 91   1 26   0 0.5 5.4   6.4 1506 SE | 134 0.00 0.00 - 0   0 100   10
Napa-North (Ranch 29) 8/22/26 84.7   2.3 1713 48.5   5.9 0632 54.2   0.8 100   0 36   5 1.3 11.0   2.8 1432 SSW | 192 0.00 0.00 0.110   0.012 316   32 100   0
Max   95.6 - 52.6 - 54.2 100 41 2.9 16.4 - - 0.00 0.00 0.201 628 -
Avg   - - - - 51.9 - - 1.9 - - - - - - - -
Min   83.1 - 44.4 - 48.3 86 18 0.5 5.4 - - 0.00 0.00 0.026 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 8/23/26 10:12 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 8/22/26 87.2   1.3 1647 56.0   1.3 0541 49.1   1.0 82   7 16   2 1.4 10.5   3.2 1449 SSE | 159 0.00 0.00 0.281   0.065 1,111   291 90   10
Mount George (Napa East) 8/22/26 82.0   1.7 1731 47.7   5.5 0638 52.4   2.7 95   1 34   0 1.3 10.3   0.5 1420 W | 259 0.00 0.00 0.175   0.001 567   18 100   0
Napa-East (Palmaz 300') 8/22/26 87.0   0.2 1718 49.8   2.7 0647 52.6   1.2 100   0 29   1 1.1 9.7   2.2 1334 SW | 225 0.00 0.00 0.152   0.001 453   2 60   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') 8/22/26 82.3   1.6 1417 50.9   1.3 0648 52.0   1.1 100   0 35   1 3.2 12.3   3.4 1447 SW | 233 0.00 0.03 0.177   0.005 561   7 100   0
Wooden Valley 8/22/26 86.5   1.0 1428 56.3   0.4 0443 49.9   1.1 80   6 27   2 3.9 14.8   1.2 1409 SW | 216 0.00 0.00 0.202   0.003 572   28 50   10
Napa-West Upper (Truchard) 8/22/26 87.3   1.1 1659 51.0   0.3 0612 30.0   11.2 100   0 0   0 2.4 12.7   3.0 1516 SSE | 148 0.00 0.00 0.191   0.005 570   22 100   10
Napa-West Lower (Truchard) 8/22/26 87.0   1.1 1655 44.0   2.7 0657 50.5   1.2 95   2 26   4 - - - - - - - - 100   10
Napa-South (Toyon Farms) 8/22/26 85.0   0.8 1707 51.5   2.6 0504 56.6   0.3 100   1 34   5 3.3 12.8   3.2 1422 SSE | 162 0.00 0.00 0.103   0.009 260   33 100   0
Toyon Remote 1 8/22/26 85.8   3.1 1711 46.5   2.9 0634 - - - - - - - - - - - -
Toyon Remote 2 8/22/26 84.3   1.0 1716 45.8   6.1 0617 - - - - - - - - - - - -
Toyon Remote 3 8/22/26 86.9   1.8 1712 46.2   3.5 0622 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 8/22/26 87.1   0.7 1658 48.3   4.2 0622 52.3   0.8 95   0 25   7 2.6 14.8   0.6 1203 SE | 146 0.00 0.00 0.177   0.006 552   32 100   0
Carneros (Saintsbury) 8/22/26 84.6   0.6 1702 46.8   4.1 0547 53.0   0.1 100   0 26   8 3.9 16.5   4.0 1705 SW | 234 0.00 0.00 - - 100   0
Suscol Lower (Ranch 35) 8/22/26 81.1   3.2 1706 49.7   2.8 0651 53.5   0.2 100   0 39   6 4.1 15.0   2.0 1346 SW | 215 0.00 0.00 0.180   0.003 537   35 100   0
Suscol Mtn (Ranch 93) 8/22/26 84.2   1.2 1440 52.4   0.7 0526 53.9   0.2 96   4 34   1 4.3 15.4   4.3 1221 NW | 310 0.00 0.00 - - 100   0
Suscol Upper (Ranch 92) 8/22/26 82.0   1.5 1440 52.5   1.2 0541 50.9   16.1 100   0 0   0 1.6 10.7   7.7 1154 WSW | 244 0.00 0.00 - - 90   20
Stanly (Ranch 45) 8/22/26 81.2   3.4 1751 46.3   6.0 0652 53.9   0.4 94   2 34   1 4.4 13.7   5.8 1857 S | 189 0.00 0.00 0.195   0.007 607   18 100   0
Carneros Upper (Ranch 81) 8/22/26 83.2   0.7 1651 54.0   1.0 0532 52.6   19.9 - - 7.2 23.8   4.5 1654 WSW | 257 - - - - 100   0
Carneros (Mitsuko) 8/22/26 86.2   1.1 1646 44.0   10.8 0622 - - - - - - - - - - - 100   0
Carneros Lower (Ranch 81) 8/22/26 89.6   0.2 1642 48.8   6.7 0642 52.2   2.2 100   7 0   31 1.2 13.1   0.9 1218 SSE | 160 0.00 0.00 0.030   0.015 25   89 100   20
Carneros (Milton Rd) 8/22/26 84.4   0.4 1720 46.2   8.1 0639 52.4   1.5 93   1 28   4 - - - - 0.00 0.00 - - 100   0
Max   89.6 - 56.3 - 56.6 100 39 7.2 23.8 - - 0.00 0.03 0.281 1,111 -
Avg   - - - - 51.0 - - 3.1 - - - - - - - -
Min   81.1 - 44.0 - 30.0 80 0 1.1 9.7 - - 0.00 0.00 0.030 25 -