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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 8/20/26 8:55 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 8/19/26 92.5   1.2 1138 59.4   4.4 0401 - - - - - - - 0.00 0.00 - - 60   10
Pope Valley (Weeks Lake) 8/19/26 96.3   0.7 1422 50.6   2.8 0622 51.4   2.2 93   0 19   1 1.6   0.0 12.9   0.4 1627 WSW | 240 0.00 0.00 0.205   0.004 562   2 20   10
Dollarhide Base 8/19/26 101.5   2.8 1327 56.6   3.1 0530 56.3   1.9 91   1 23   1 3.1   0.1 14.1   3.1 1702 WSW | 238 0.00 0.00 0.244   0.006 617   6 0   0
Dollarhide 1AS Remote 8/19/26 101.3   0.5 1601 51.6   2.6 0644 54.4   2.3 88   1 21   0 2.9   0.4 15.9   0.1 1345 SW | 223 - - - - 0   0
Dollarhide 16A Remote 8/19/26 98.7   2.3 1528 56.0   2.8 0612 56.5   1.8 91   2 25   1 - - - - - - - - 0   0
Dollarhide 18A Remote 8/19/26 98.0   2.2 1313 50.2   3.0 0641 53.9   1.7 94   1 23   1 - - - - - - - - 0   0
Hardin Rd (Eakle) 8/19/26 98.5   1.9 1513 53.3   2.1 0627 - - - - - - - - - - - 0   0
Angwin 8/19/26 88.8   1.8 1537 71.0   4.5 0553 45.8   1.4 43   5 19   1 3.4   0.1 12.2   0.8 1432 SE | 129 0.00 0.00 0.078   0.001 0   0 100   0
Lower Angwin (Pioneer) 8/19/26 90.0   2.0 1534 49.2   4.0 0053 - - - 1.9   0.2 10.8   1.4 1708 WSW | 240 - - - - 80   10
Las Posadas (Cal Fire) 8/19/26 91.9   0.8 1534 50.9   1.4 0638 55.1   1.9 98   0 28   5 7.6   0.0 18.9   0.4 1604 SW | 234 0.00 0.00 0.229   0.004 556   8 -
Deer Park 8/19/26 93.2   0.3 1626 54.2   1.7 0620 55.6   1.1 97   1 31   2 3.1   0.3 12.3   1.1 1758 SSE | 152 0.00 0.00 0.155   0.000 395   5 0   0
Lower Chiles Valley (Brown) 8/19/26 93.3   0.5 1632 53.5   1.0 0638 55.2   0.9 100   0 24   0 4.7   0.6 15.2   1.7 1446 W | 273 0.00 0.00 0.203   0.005 604   34 0   0
Moss Creek Vineyard/Reservior 8/19/26 101.3   2.7 1612 54.8   2.9 0623 52.8   1.0 93   1 12   6 - - - - 0.00 0.00 - - 0   0
Max   101.5 - 71.0 - 56.5 100 31 7.6 18.9 - - 0.00 0.00 0.244 617 -
Avg   - - - - 53.7 - - 3.5 - - - - - - - -
Min   88.8 - 49.2 - 45.8 43 12 1.6 10.8 - - 0.00 0.00 0.078 0 -

Northern & Central Napa County

27 Stations

Daily Data | America/Los_Angeles
as of 8/20/26 8:55 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 8/19/26 99.1   1.4 1434 54.7   1.7 0520 57.0   1.2 96   1 30   2 - - - - 0.00 0.00 - - 40   10
Diamond Mtn (Schramsberg) 8/19/26 92.9   0.5 1636 52.6   1.1 0555 54.7   2.5 100   0 19   5 - - - - 0.00 0.00 - - 0   0
Diamond Mtn (McEachran) 8/19/26 95.3   1.1 1635 54.4   2.2 0501 55.8   2.5 97   1 17   6 - - - - - - - - 10   10
St. Helena-North 8/19/26 93.5   0.6 1650 55.7   3.6 0419 54.5   1.7 89   4 28   1 3.3 12.3   0.2 1708 SSE | 147 0.00 0.00 0.183   0.006 485   24 0   0
St. Helena (NVV Office) 8/19/26 92.5   0.2 1636 57.3   4.5 0607 - - - 1.6 8.8   0.6 1651 SE | 138 0.00 0.00 - - 0   0
Tiara Fria (East St. Helena) 8/19/26 89.6   0.1 1625 55.9   5.3 0350 56.4   1.1 92   1 35   0 2.3 13.7   3.3 1704 SE | 127 0.00 0.00 - - 20   10
Prisoner Winery 8/19/26 93.5   0.4 1636 53.0   3.2 0409 56.1   0.8 97   0 32   1 1.1 8.3   1.5 1146 SSW | 212 0.00 0.00 0.045   0.020 71   63 0   0
Rutherford Hill Estate 8/19/26 91.5   1.0 1629 54.6   1.4 0350 56.5   0.8 100   0 34   0 1.3 11.8   0.7 1705 SSE | 153 0.00 0.00 0.157   0.001 487   2 0   10
Rutherford-North (Mee Ln) 8/19/26 88.5   0.3 1615 51.0   4.1 0337 55.3   0.8 94   0 36   0 2.7 14.9   2.8 1826 SSE | 150 0.00 0.00 0.164   0.002 464   8 20   10
Rutherford (STS) 8/19/26 91.1   0.3 1558 52.0   4.1 0248 57.4   0.8 91   1 39   0 1.8 12.7   1.0 1457 ESE | 107 0.00 0.00 0.180   0.002 546   6 0   0
Oakville-NE (Ranch 88) 8/19/26 88.9   0.1 1619 52.2   3.6 0259 54.4   0.7 91   1 34   1 2.2 14.4   0.7 1702 S | 186 0.00 0.00 0.168   0.000 478   2 100   0
OV561-East 8/19/26 91.1   0.8 1611 54.8   1.9 0315 - - - - - - - - - - - 50   10
Oakville 8/19/26 85.7   0.0 1552 53.0   3.2 0315 55.6   0.6 94   0 40   0 3.4 17.2   1.6 1801 ESE | 119 0.00 0.00 0.182   0.002 542   0 100   0
OV518-West 8/19/26 84.6   0.4 1549 53.6   2.6 0333 - - - - - - - - - - - 100   0
To Kalon Remote (TKKE) 8/19/26 89.5   0.6 1604 53.2   3.9 0340 - - - - - - - - - - - 50   10
To Kalon 8/19/26 86.9   0.9 1615 52.5   2.8 0400 56.5   0.6 96   0 41   2 3.1 15.4   1.8 1804 SE | 130 0.00 0.00 0.179   0.004 521   15 80   10
To Kalon Remote (TKN5) 8/19/26 88.8   2.5 1554 53.5   3.0 0336 - - - - - - - - - - - 50   10
Yountville (Ranch 67) 8/19/26 84.0   0.2 1603 55.4   4.1 0226 54.9   0.6 91   2 41   2 4.3 15.6   0.7 1734 S | 172 0.00 0.00 0.184   0.004 574   14 100   0
Stags Leap Dist (Silverado Vineyards) 8/19/26 84.9   0.4 1621 55.5   3.4 0203 55.0   0.6 90   2 39   1 3.3 16.0   0.7 1657 S | 182 0.00 0.00 0.175   0.005 506   21 100   0
Borreo (Soda Canyon) 8/19/26 84.8   0.3 1550 51.7   3.3 0058 54.1   0.9 95   1 37   1 1.7 9.3   0.0 1646 ESE | 112 0.00 0.00 0.171   0.009 549   40 100   0
Wappo Hill Floor 8/19/26 84.2   1.6 1601 55.9   4.2 0101 56.4   0.5 100   0 42   2 2.9 12.9   1.5 1646 SSE | 147 0.00 0.00 0.170   0.009 522   30 100   0
Stags Leap Dist (Chimney Rock) 8/19/26 84.8   0.2 1600 56.7   5.7 0101 57.8   0.6 94   2 47   0 2.8 13.4   2.5 1711 SSE | 150 0.00 0.00 0.151   0.008 464   32 100   0
Yountville-South (Ranch 87) 8/19/26 85.6   2.0 1554 54.6   3.2 0059 56.4   0.3 95   5 41   2 1.8 10.9   0.3 1533 SSE | 160 0.00 0.00 0.162   0.008 508   32 60   10
Yountville-SE (Ranch 85) 8/19/26 82.9   1.1 1616 56.6   2.4 0057 56.9   0.5 93   2 45   1 2.6 12.0   0.1 1802 SE | 144 0.00 0.00 - 0   0 100   0
Oak Knoll-East (Ranch 53) 8/19/26 83.3   1.4 1609 56.2   2.4 0101 55.6   0.4 92   1 42   2 2.4 12.9   0.7 1646 SE | 144 0.00 0.00 0.165   0.012 524   43 100   10
Napa-NW (Ranch 54) 8/19/26 86.0   0.9 1623 53.0   1.1 0057 55.6   0.2 91   1 40   2 0.6 6.8   0.6 1158 SE | 126 0.00 0.00 - 0   0 100   10
Napa-North (Ranch 29) 8/19/26 80.6   1.3 1549 57.0   1.8 0039 56.9   0.4 100   0 48   2 2.1 13.6   1.8 1628 S | 178 0.00 0.00 0.123   0.004 373   15 100   0
Max   99.1 - 57.3 - 57.8 100 48 4.3 17.2 - - 0.00 0.00 0.184 574 -
Avg   - - - - 55.9 - - 2.4 - - - - - - - -
Min   80.6 - 51.0 - 54.1 89 17 0.6 6.8 - - 0.00 0.00 0.045 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 8/20/26 8:55 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 8/19/26 90.5   3.6 1623 56.4   3.8 0537 52.6   0.4 84   8 29   4 1.2 9.7   0.4 1429 SE | 143 0.00 0.00 0.176   0.002 569   13 60   10
Mount George (Napa East) 8/19/26 82.4   1.0 1616 53.5   0.8 0213 56.2   2.0 94   0 40   2 1.5 10.0   1.4 1333 WSW | 247 0.00 0.00 0.159   0.006 513   33 100   0
Napa-East (Palmaz 300') 8/19/26 87.3   1.8 1454 53.6   0.9 0057 55.4   0.6 100   0 34   1 0.8 9.2   0.2 1633 SW | 219 0.00 0.00 0.153   0.005 474   17 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') 8/19/26 83.9   0.7 1503 51.6   1.8 0633 54.8   1.1 100   0 35   4 2.9 11.2   0.6 1739 SW | 227 0.00 0.03 0.179   0.005 581   8 100   0
Wooden Valley 8/19/26 89.4   0.4 1318 53.6   0.1 0655 52.8   1.1 90   1 25   1 3.8 15.1   2.1 1941 WSW | 243 0.00 0.00 0.219   0.012 612   24 20   10
Napa-West Upper (Truchard) 8/19/26 82.6   1.3 1441 52.6   1.9 0057 18.1   0.9 100   0 0   0 2.5 13.5   2.3 1624 S | 185 0.00 0.00 0.169   0.012 514   41 100   0
Napa-West Lower (Truchard) 8/19/26 81.7   0.6 1554 47.9   2.9 0101 54.2   0.3 93   0 44   1 - - - - - - - - 100   0
Napa-South (Toyon Farms) 8/19/26 79.9   1.8 1541 53.4   0.4 0053 57.6   0.1 98   1 54   2 3.0 13.3   0.8 1615 S | 173 0.00 0.00 0.094   0.003 292   8 100   0
Toyon Remote 1 8/19/26 79.2   1.0 1537 51.8   3.1 0107 - - - - - - - - - - - -
Toyon Remote 2 8/19/26 78.6   2.0 1529 51.5   1.5 0056 - - - - - - - - - - - -
Toyon Remote 3 8/19/26 80.0   1.6 1538 50.5   0.3 0041 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 8/19/26 78.6   1.6 1552 51.7   0.2 0210 54.6   0.4 94   0 49   3 2.3 11.8   3.1 1636 S | 173 0.00 0.00 0.156   0.009 515   30 100   0
Carneros (Saintsbury) 8/19/26 76.7   0.4 1534 51.3   0.4 0059 54.4   0.0 100   0 51   0 3.7 13.8   0.1 1652 SSE | 149 0.00 0.00 - - 100   10
Suscol Lower (Ranch 35) 8/19/26 78.5   1.2 1602 51.7   1.1 0054 55.2   0.3 91   8 46   1 4.2 13.8   1.1 1322 S | 176 0.00 0.00 0.149   0.009 467   38 100   0
Suscol Mtn (Ranch 93) 8/19/26 83.2   0.3 1529 53.8   2.0 0059 56.0   0.7 100   0 45   6 3.7 11.9   0.1 1727 NW | 307 0.00 0.00 - - 100   0
Suscol Upper (Ranch 92) 8/19/26 80.5   2.5 1545 54.4   1.9 0057 21.4   11.6 100   0 0   0 1.6 10.2   0.8 1319 SSE | 150 0.00 0.00 - - 60   20
Stanly (Ranch 45) 8/19/26 77.2   0.1 1614 51.1   1.2 0053 54.7   0.1 90   2 51   1 4.2 14.2   1.4 2025 SSW | 193 0.00 0.00 0.162   0.012 533   44 100   10
Carneros Upper (Ranch 81) 8/19/26 81.0   0.0 1551 53.6   0.7 0051 40.0   13.1 - - 4.7 16.1   0.0 2104 W | 262 - - - - 100   0
Carneros (Mitsuko) 8/19/26 76.9   1.1 1550 53.5   2.9 0211 - - - - - - - - - - - 100   0
Carneros Lower (Ranch 81) 8/19/26 79.8   0.2 1605 53.9   1.0 0059 55.5   0.2 93   0 49   1 1.7 12.2   0.1 1434 S | 179 0.00 0.00 0.148   0.011 479   44 100   0
Carneros (Milton Rd) 8/19/26 76.7   0.7 1555 50.3   4.2 0004 55.1   0.2 91   2 51   1 - - - - 0.00 0.00 - - 80   10
Max   90.5 - 56.4 - 57.6 100 54 4.7 16.1 - - 0.00 0.03 0.219 612 -
Avg   - - - - 49.9 - - 2.8 - - - - - - - -
Min   76.7 - 47.9 - 18.1 84 0 0.8 9.2 - - 0.00 0.00 0.094 292 -