Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 8/19/26 5:31 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)
Upper Rincon Valley 8/18/26 86.2   5.2 1629 51.6   0.6 0520 53.3   0.2 98   0 34   0 1.5   0.1 8.8   0.4 1626 SSW | 200 0.00 0.01 0.139   0.013 434   41 100   20
Lower Bennett Valley 8/18/26 87.8   4.1 1556 53.1   0.8 0541 55.3   0.3 100   0 35   0 3.8   0.1 12.1   0.7 2102 E | 101 0.00 0.00 0.186   0.016 569   30 90   10
Kenwood (Wildwood) 8/18/26 92.2   3.7 1557 53.9   0.2 0059 54.3   0.2 96   0 29   0 2.8   0.5 10.4   0.7 1834 NNW | 335 0.00 0.00 0.185   0.012 570   36 10   10
Sonoma Valley (Bedrock) 8/18/26 86.8   1.7 1606 54.0   0.1 0059 52.8   0.2 92   0 31   0 - - - - 0.00 0.00 - - 90   10
Sonoma-West (Arnold) 8/18/26 90.2   2.2 1732 50.9   1.5 0114 53.5   0.3 93   1 29   1 2.7   0.2 12.5   2.8 1846 SSW | 206 0.00 0.00 0.214   0.010 655   47 10   10
Sonoma Valley HS 8/18/26 85.5   2.5 1749 53.6   0.7 0128 56.6   0.2 99   1 42   1 2.3   0.0 7.3   0.7 1934 SSW | 210 0.00 0.00 0.182   0.014 592   58 100   20
Sonoma East (Bundschu01) 8/18/26 84.2   2.8 1522 51.5   0.2 0136 54.2   0.2 94   1 39   2 3.2   0.0 14.0   0.4 1747 SE | 125 0.00 0.00 0.190   0.019 590   72 100   0
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) 8/18/26 85.6   2.6 1500 54.3   1.7 0122 54.2   0.1 92   0 37   4 2.5   0.1 11.8   0.3 1325 ESE | 119 0.00 0.00 - - 100   0
Ricci Vineyards (Carneros) 8/18/26 81.8   0.8 1504 54.8   0.1 0059 54.3   0.3 94   1 36   7 4.1   1.0 14.9   1.5 0125 W | 277 0.00 0.01 0.183   0.010 579   53 100   0
Carneros (Ranch 71) 8/18/26 80.1   1.4 1536 54.4   0.4 0601 54.4   0.1 96   1 39   7 3.9   0.1 17.0   0.5 1908 WSW | 245 0.00 0.00 0.174   0.013 570   53 100   0
Carneros Upper (Ranch 81) 8/18/26 81.0   0.3 1540 54.3   0.2 0634 26.9   17.4 - - 5.8   1.7 16.1   1.5 0143 WSW | 242 - - - - 100   0
Carneros Lower (Ranch 81) 8/18/26 79.9   0.1 1608 54.9   0.1 0056 55.7   0.3 93   0 49   1 2.0   0.3 12.1   0.2 1324 SSE | 161 0.00 0.00 0.159   0.010 522   33 100   0
Rohnert Park-West (Stony Point) 8/18/26 80.8   3.8 1534 54.7   0.5 0626 56.3   0.3 99   0 47   5 2.2   0.5 17.4   1.1 1703 SW | 235 0.00 0.00 - - 0   0
Cartograph Wines Base 8/18/26 78.1   2.0 1533 53.8   0.5 0539 56.0   0.4 99   0 53   3 3.9   0.0 21.5   0.0 1709 SW | 230 0.00 0.07 0.149   0.011 536   42 0   0
Cartograph Wines Remote 8/18/26 76.7   1.0 1532 54.4   0.6 0527 - - - - - - - - - - - 0   10
Rice-Spivak Vineyard 8/18/26 80.5   2.2 1511 54.2   0.5 0556 - - - - - - - - - - - 0   0
Penngrove (Asellus) 8/18/26 85.8   3.7 1500 54.3   0.5 0420 54.3   0.3 96   0 34   1 2.5   1.0 13.0   0.7 1819 WNW | 284 0.00 0.00 - - 50   10
Petaluma (Ranch 10) 8/18/26 88.5   2.8 1525 55.1   0.5 0409 54.6   0.2 94   0 31   2 2.8   0.4 12.4   0.4 1722 NW | 324 0.00 0.00 0.172   0.003 543   11 70   10
Max   92.2 - 55.1 - 56.6 100 53 5.8 21.5 - - 0.00 0.07 0.214 655 -
Avg   - - - - 52.9 - - 3.1 - - - - - - - -
Min   76.7 - 50.9 - 26.9 92 29 1.5 7.3 - - 0.00 0.00 0.139 434 -