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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 8/16/26 8:55 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) RH (%) 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)
Rockpile Upper (Cooley) 8/15/26 81.1   2.8 1606 49.6   0.8 0341 52.8   0.4 75   8 100   0 39   3 4.5   0.1 16.2   0.4 1342 SE | 136 0.00 0.05 0.183   0.035 586   71 30   10
Rockpile Lower (Cooley) 8/15/26 83.2   3.2 1702 53.5   0.8 0158 54.1   0.3 74   6 97   3 39   2 2.1   1.0 10.4   3.2 1424 SE | 130 0.00 0.02 - - 20   20
Cloverdale-East (Ranch 83) 8/15/26 84.1   2.9 1628 53.6   2.5 0059 55.3   0.2 - - - 2.8   0.0 13.4   0.1 1508 S | 187 0.00 0.00 0.159   0.019 483   51 60   20
Cloverdale-SE (Ranch 38) 8/15/26 81.5   2.0 1736 54.2   1.3 0051 55.6   0.2 76   3 94   2 43   3 5.5   0.1 16.7   1.8 1525 S | 184 0.00 0.01 0.149   0.015 433   30 40   20
Geyserville-North (Hoffman) 8/15/26 82.2   3.3 1624 55.0   1.0 0033 57.0   0.8 75   0 94   2 47   4 2.4   0.2 10.8   2.1 1704 E | 100 0.00 0.00 0.132   0.002 406   9 70   20
Geyserville (Ranch 3) 8/15/26 82.1   3.4 1705 55.0   0.1 0030 55.2   0.5 72   0 100   12 40   5 2.4   0.3 10.6   2.6 1725 ESE | 104 0.00 0.00 0.141   0.006 429   28 60   20
Geyserville-East (Ranch 40) 8/15/26 81.4   4.9 1605 53.5   1.5 0005 55.8   0.3 82   1 98   2 47   7 5.2   0.8 18.5   3.0 1708 SSW | 210 0.00 0.00 0.142   0.002 450   13 40   20
Geyserville-South (Nervo Station) 8/15/26 81.2   4.4 1641 54.5   1.1 2355 - - - - 2.5   0.4 11.5   1.7 1824 SSE | 148 0.00 0.00 - - 70   20
Peterson (Ranch 09) 8/15/26 80.3   3.1 1647 54.4   0.4 2330 54.3   0.5 73   0 94   5 42   6 2.4   0.3 11.2   2.0 1826 SSE | 164 0.00 0.00 0.130   0.013 418   49 40   20
Crazy Creek Ranch 8/15/26 81.7   3.3 1630 52.6   2.5 2355 56.3   0.2 76   0 93   3 48   4 2.0   0.3 9.9   8.9 1532 S | 170 0.00 0.00 0.137   0.006 444   23 70   20
Whitton Ranch (201e) 8/15/26 83.8   4.3 1607 54.5   4.4 2340 55.7   0.7 75   0 100   0 40   6 2.3   0.2 10.1   1.8 1835 S | 183 0.00 0.03 0.131   0.009 395   34 100   20
Lytton East (Shop Hill Bottom) 8/15/26 80.8   3.8 1603 55.6   2.3 2305 54.6   0.5 74   0 93   0 42   5 2.8   0.4 12.9   2.7 1824 ESE | 115 0.00 0.00 0.143   0.011 442   46 70   20
Lytton East (Hill 5) 8/15/26 80.5   4.0 1604 55.3   0.0 0008 54.8   0.4 76   0 95   3 44   5 3.7   0.6 15.6   1.8 1857 SSE | 150 0.00 0.00 0.133   0.009 400   34 40   20
Lytton West Lower (Lew 6) 8/15/26 80.9   3.8 1624 55.6   2.4 2250 55.0   0.6 74   0 94   1 44   4 2.7   0.1 14.0   1.1 1510 SE | 135 0.00 0.01 0.142   0.015 449   54 70   20
Lytton West Hill (23PS) 8/15/26 80.4   3.5 1602 55.6   0.8 0022 55.4   0.5 76   1 98   4 45   4 3.1   0.4 13.2   1.6 1821 SSE | 150 0.00 0.01 0.144   0.016 455   64 40   10
Big River 8/15/26 79.2   2.9 1602 55.8   1.2 2317 56.5   0.4 80   1 95   2 49   5 2.4   0.5 13.1   1.4 1812 SE | 143 0.00 0.00 0.140   0.013 456   55 40   10
Jimtown-North (Piccolo Ranch 15) 8/15/26 81.8   3.4 1719 54.0   0.0 2313 53.8   0.5 71   1 100   10 38   6 1.5   0.4 11.4   2.8 1826 SSW | 199 0.00 0.00 0.122   0.018 390   57 70   20
HWY 128/Chalk Hill Rd (Landslide) 8/15/26 81.4   3.5 1539 56.4   1.8 0052 55.5   0.5 75   1 93   2 44   3 2.2   0.3 11.9   1.9 1725 SSW | 193 0.00 0.00 0.124   0.017 375   65 70   20
N Chalk Hill Rd (Ranch 63) 8/15/26 80.2   3.8 1611 54.7   2.0 0038 54.6   0.5 74   1 92   1 44   5 2.1   0.5 12.7   0.8 1820 S | 180 0.00 0.00 0.131   0.011 405   37 70   20
Newman Knights Valley 8/15/26 80.2   3.1 1649 53.7   0.4 2347 55.8   0.4 76   1 88   1 58   2 2.7   0.6 11.7   2.8 1858 WSW | 243 0.00 0.00 - - 70   20
Knights Valley (Bavarian Lion) 8/15/26 80.9   3.7 1619 48.3   1.1 0053 53.4   0.2 75   0 96   0 41   4 2.2   0.7 12.6   4.3 1637 WNW | 298 0.00 0.00 0.148   0.004 466   19 50   20
Red Tail 8/15/26 79.2   2.8 1505 51.0   0.5 2344 55.2   0.3 77   0 91   0 52   3 2.6   0.7 13.8   2.8 1650 S | 185 0.00 0.01 0.143   0.009 462   42 70   20
Franz Valley (Stornetta) 8/15/26 81.2   3.5 1551 49.5   0.7 0101 53.6   0.0 - 92   1 42   3 1.4   0.6 10.3   2.4 1647 W | 260 0.00 0.00 - - 50   20
Upper Dry Creek Valley 8/15/26 84.5   3.9 1703 53.8   0.1 0101 55.3   0.2 72   1 93   2 40   3 2.9   0.1 13.2   0.6 1852 SSE | 154 0.00 0.00 0.153   0.004 463   5 20   20
Lower Dry Creek Valley 8/15/26 80.5   3.8 1600 55.6   0.6 0059 55.5   0.6 75   1 100   0 46   3 2.4   0.1 13.0   4.2 1854 SE | 126 0.00 0.01 0.135   0.014 417   51 70   20
Max   84.5 - 56.4 - 57.0 82 100 58 5.5 18.5 - - 0.00 0.05 0.183 586 -
Avg   - - - - 55.0 75 - - 2.7 - - - - - - - -
Min   79.2 - 48.3 - 52.8 71 88 38 1.4 9.9 - - 0.00 0.00 0.122 375 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 8/16/26 8:55 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) RH (%) Daily Max RH (%) Daily Min RH (%) Wind Spd (mph) Daily Max Wind (mph) Time of Max Wind Daily Rain (In) Season Precip (In) Daily ETo (in) Daily Solar Rad (Cal/cm2) Powdery Mildew Stress (pts)
Windsor-NW (Ranch 8) 8/15/26 81.0   4.0 1500 56.0   0.8 2225 55.4   0.1 76 84   0 51   4 0.0 0.0   0.0 0101 0.00 0.02 0.125   0.010 434   43 70
Windsor-East (Ranch 16) 8/15/26 78.0   3.6 1515 55.8   1.3 0049 55.1   0.4 76 94   2 47   5 3.8 13.8   2.0 1802 0.00 0.00 0.148   0.002 459   11 60
Mark West-North (Ranch 14) 7/27/26 86.2   2.9 1404 47.0   1.0 0543 51.1   1.0 62 96   0 32   5 1.8 12.7   0.3 1723 0.00 0.01 0.038   0.002 0   0 60
Windsor-SE (Silk Rd) 8/15/26 78.3   4.1 1513 56.4   0.7 2135 55.7   0.4 78 94   1 48   6 2.3 12.5   0.7 1637 0.00 0.02 0.136   0.005 449   28 60
Fulton-NW (Ranch 5) 8/15/26 76.4   3.7 1437 55.8   1.1 0005 55.6   0.2 79 95   2 52   5 3.9 14.4   0.8 1642 0.00 0.00 0.143   0.004 466   5 60
Bisordi (Fulton) 8/15/26 76.9   3.2 1521 56.4   0.8 2345 56.5   0.0 80 92   1 56   6 2.4 13.4   0.7 1641 0.00 0.00 0.141   0.001 480   11 60
Windsor-South (Laughlin Rd) 8/15/26 78.4   4.0 1441 56.0   0.6 2129 55.1   0.2 77 92   1 48   6 - - - 0.00 0.00 - - 60
Fulton-SE (Barnes Rd) 8/15/26 76.9   3.6 1441 56.9   0.6 0055 55.4   0.2 78 92   1 52   5 1.6 10.5   0.2 2143 0.00 0.00 - - 60
Fulton-SW (Ranch 21) 8/15/26 76.9   3.8 1440 55.8   1.1 2357 55.2   0.1 79 94   2 51   6 3.1 13.9   2.8 0955 0.00 0.00 0.149   0.002 494   16 50
NW Santa Rosa (Piner Road) 8/15/26 76.4   3.2 1408 55.9   1.1 0052 58.6   0.4 89 100   0 58   6 2.3 14.4   0.1 1513 0.00 0.00 - - 40
River Rd South (Denner Ranch) 8/15/26 76.2   3.8 1409 55.4   0.6 0056 -9.5   12.6 29 100   0 0   0 4.6 16.9   0.0 1518 - - - - 50
West Santa Rosa (LOV Vineyard) 8/15/26 76.8   3.9 1442 56.1   0.3 2358 55.4   0.2 79 94   2 50   7 2.2 14.0   2.1 1729 0.00 0.00 0.024   0.001 0   0 50
Guerneville Rd (Prokopakis) 8/15/26 81.5   4.4 1438 56.4   1.4 0017 56.1   0.4 77 95   2 44   7 - - - 0.00 0.02 - - 100
SunnyView Vineyard (SCWC) 8/15/26 76.6   3.0 1409 55.8   0.3 0058 54.7   0.1 78 94   2 49   5 2.1 12.3   2.9 1434 0.00 0.00 0.128   0.006 425   8 60
Guerneville Rd West (Balletto) 8/15/26 75.8   3.9 1421 56.7   1.0 0055 56.9   0.3 84 96   2 58   5 2.8 12.9   1.5 1529 0.00 0.11 - - 40
Sanchietti Ranch 8/15/26 77.4   4.0 1423 57.1   0.2 0056 57.5   0.1 - 93   0 59   6 3.2 13.7   4.2 1540 0.00 0.00 - - 60
Occidental Rd (Sebastopol) 8/15/26 76.8   4.1 1422 55.8   2.1 2100 60.5   0.5 95 100   0 70   11 2.4 14.5   3.3 1711 0.00 0.00 - - 40
Harper's Rest (Windsor-West) 8/15/26 80.1   4.1 1523 55.0   2.4 0058 54.6   0.5 - 93   2 44   4 1.7 10.0   0.4 1620 0.00 0.04 - - 80
Lower Westside Rd (Ranch 12) 8/15/26 79.4   4.7 1533 55.7   2.2 0055 55.4   0.7 77 94   1 47   6 2.1 12.1   4.4 1659 0.00 0.03 - - 70
Guerneville (Laughlin Rd) 8/15/26 75.9   2.1 1405 54.0   0.1 2159 54.9   0.4 79 92   2 52   2 2.2 13.4   0.3 1621 0.00 0.02 - - 60
Korbel (Winery) 8/15/26 75.0   1.6 1406 56.2   0.7 2216 55.7   0.3 80 93   2 55   0 0.6 11.3   1.5 1416 0.00 0.01 - - 50
Forestville (Shone Farms) 8/15/26 80.4   5.8 1635 55.1   0.1 2255 56.1   0.5 80 96   0 49   8 2.0 10.4   2.5 1709 0.00 0.04 0.131   0.006 432   8 70
Forestville-NE (Ranch 30) 8/15/26 80.4   7.3 1633 55.2   1.7 2231 56.7   0.6 82 96   0 51   11 2.7 12.8   2.6 1659 0.00 0.03 0.136   0.008 445   0 70
Foggy Bend (Ranch 41) 8/15/26 79.2   5.3 1451 55.8   1.9 2238 57.0   0.7 81 93   0 56   6 2.0 13.4   0.8 1718 0.00 0.03 0.137   0.009 456   10 70
Last Stop 8/15/26 80.8   5.7 1431 52.5   0.7 2226 55.9   0.8 78 94   1 48   7 1.9 11.6   0.5 1328 0.00 0.02 0.137   0.010 449   7 70
Green Valley Vineyard 8/15/26 77.5   6.4 1626 52.0   0.2 2302 55.4   0.5 82 97   1 49   10 1.7 12.3   1.1 1433 0.00 0.06 0.021   0.035 7   149 60
Park Royal 8/15/26 77.2   3.1 1426 55.8   1.3 0057 54.8   0.1 78 94   2 48   4 - - - 0.00 0.00 - - 50
Merino 8/15/26 80.7   4.2 1436 56.2   2.3 0058 57.0   0.2 81 97   1 50   5 2.4 12.5   0.1 1428 0.00 0.00 0.146   0.012 479   27 60
Green Valley (Sanchietti) 8/15/26 79.0   4.1 1646 52.2   2.4 0001 - - - - - - - - - - - 90
Keefer Ranch (Green Valley) 8/15/26 77.8   5.6 1632 50.5   0.2 2313 56.0   0.5 82 95   0 52   11 - - - 0.00 0.04 - - 60
Graton-West (Dutton Ranch) 8/15/26 76.9   4.4 1430 52.8   1.5 2301 59.8   0.5 92 100   0 59   14 1.9 10.3   1.1 1558 0.00 0.05 - - 90
Graton-South (Mill Station Rd) 8/15/26 72.9   3.6 1432 55.0   3.6 0101 54.7   0.7 95 96   0 94   29 0.1 10.4   1.3 1705 0.00 0.03 - - 0
Occidental (Horseshoe Bend) 8/15/26 71.6   6.3 1407 53.0   0.6 0039 55.4   0.1 - 100   0 60   16 - - - 0.01 0.08 - - 0
Sexton Valley (Jacqueline's Blk) 8/15/26 74.2   3.5 1359 55.6   4.5 0103 56.9   0.4 86 97   1 60   8 1.4 12.4   0.4 1710 0.00 0.08 - - 0
Sebastopol Hills (Burnside Rd) 8/15/26 71.1   3.8 1421 54.5   0.7 2350 56.3   0.2 91 100   0 65   10 2.7 13.5   0.3 1836 0.00 0.00 - - 0
Pleasant Hill 8/15/26 76.4   2.9 1400 53.4   0.5 2143 55.3   0.1 - 96   0 50   6 1.9 13.6   0.7 1654 0.00 0.04 - - 60
Seaview/Fort Ross (Hirsch) 8/15/26 67.2   5.5 1815 50.5   0.5 0428 53.5   1.0 87 97   0 65   12 2.9 10.2   0.9 0704 0.01 0.06 0.138   0.038 570   158 50
Max   81.5 - 57.1 - 60.5 95 100 94 4.6 16.9 - 0.01 0.11 0.149 570 -
Avg   - - - - 54.2 80 - - 2.2 - - - - - - -
Min   67.2 - 50.5 - -9.5 29 84 0 0.0 0.0 - 0.00 0.00 0.021 0 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 8/16/26 8:55 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)
Upper Rincon Valley 8/15/26 77.4   3.8 1537 50.4   2.8 0037 53.7   0.2 98   1 47   5 1.5   0.7 10.0   1.2 1739 SSE | 163 0.00 0.01 0.115   0.000 378   4 70   10
Lower Bennett Valley 8/15/26 78.6   4.3 1511 54.3   1.7 0055 55.6   0.3 100   4 48   6 3.7   0.2 14.4   0.4 1633 W | 266 0.00 0.00 0.147   0.030 484   91 60   10
Kenwood (Wildwood) 8/15/26 81.9   3.9 1553 53.9   0.4 2304 54.8   0.4 96   3 42   5 2.5   0.5 16.2   0.2 1711 NNW | 332 0.00 0.00 0.166   0.036 540   109 40   20
Sonoma Valley (Bedrock) 8/15/26 82.1   5.7 1559 51.5   0.5 2358 53.5   0.5 94   3 39   7 - - - - 0.00 0.00 - - 70   20
Sonoma-West (Arnold) 8/15/26 83.2   6.4 1500 49.5   8.5 0027 54.2   0.2 93   6 39   8 3.0   0.3 15.6   2.0 1641 SW | 223 0.00 0.00 0.186   0.053 570   149 40   20
Sonoma Valley HS 8/15/26 81.8   7.2 1622 52.7   5.4 0016 56.8   0.2 99   6 48   9 2.3   0.5 7.3   1.1 2019 WSW | 248 0.00 0.00 0.155   0.047 508   150 40   10
Sonoma East (Bundschu01) 8/15/26 80.4   6.1 1446 53.1   3.3 0035 54.8   0.2 93   5 43   8 3.1   0.6 16.0   2.2 1728 SSW | 206 0.00 0.00 0.160   0.041 510   142 100   20
Schellville (Sasaki) 2/4/26 70.2 1502 39.9 0001 48.4 98 51 2.9 11.8 1113 NE | 34 0.00 0.00 - - 0
Sonoma-SE (Napoli) 8/15/26 81.6   5.8 1428 55.5   2.4 2241 54.8   0.1 91   3 42   7 3.1   0.6 15.2   0.3 1833 WSW | 247 0.00 0.00 - - 100   20
Ricci Vineyards (Carneros) 8/15/26 78.6   4.0 1412 55.2   2.7 2255 54.9   0.1 94   5 46   5 4.7   0.8 17.3   0.4 2033 W | 267 0.00 0.01 0.164   0.031 500   97 90   10
Carneros (Ranch 71) 8/15/26 77.2   5.0 1430 55.0   1.9 2246 54.9   0.1 96   3 48   7 4.9   0.6 21.2   1.7 1902 W | 264 0.00 0.00 0.152   0.028 483   83 70   10
Carneros Upper (Ranch 81) 8/15/26 77.5   4.9 1513 54.8   2.1 2242 45.3   9.3 - - 7.6   1.1 23.4   0.7 1905 W | 272 - - - - 70   10
Carneros Lower (Ranch 81) 8/15/26 78.5   5.0 1427 55.8   1.8 2259 55.7   0.3 92   2 49   4 1.3   0.8 13.2   2.4 1439 SSE | 166 0.00 0.00 0.143   0.026 463   81 100   20
Rohnert Park-West (Stony Point) 8/15/26 75.2   3.5 1446 56.1   1.3 0005 56.6   0.1 97   1 57   7 2.2   0.2 17.2   0.5 1649 SW | 230 0.00 0.00 - - 0   0
Cartograph Wines Base 8/15/26 74.7   5.5 1438 55.0   1.4 2344 56.4   0.4 97   0 60   12 3.3   0.2 19.0   1.8 1817 S | 188 0.00 0.06 0.134   0.054 487   204 0   0
Cartograph Wines Remote 8/15/26 74.0   4.2 1427 56.0   1.2 2347 - - - - - - - - - - - 30   10
Rice-Spivak Vineyard 8/15/26 76.1   4.8 1412 55.5   1.4 2339 - - - - - - - - - - - 0   10
Penngrove (Asellus) 8/15/26 79.0   3.7 1435 55.4   1.6 0030 54.8   0.1 95   2 45   5 2.9   0.4 14.5   0.7 1548 WNW | 302 0.00 0.00 - - 50   10
Petaluma (Ranch 10) 8/15/26 80.2   3.6 1528 56.4   1.5 2159 55.1   0.3 92   1 43   5 2.6   0.2 12.6   0.1 1536 WSW | 248 0.00 0.00 0.149   0.030 485   108 100   10
Max   83.2 - 56.4 - 56.8 100 60 7.6 23.4 - - 0.00 0.06 0.186 570 -
Avg   - - - - 54.5 - - 3.2 - - - - - - - -
Min   74.0 - 49.5 - 45.3 91 39 1.3 7.3 - - 0.00 0.00 0.115 378 -