Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 8/24/26 9:50 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 8/23/26 92.4   8.2 1451 55.2   4.4 0059 48.9   1.1 78   15 23   5 2.0   0.2 10.2   2.4 1615 SE | 144 0.00 0.01 0.159   0.012 444   10 100   0
Lower Bennett Valley 8/23/26 93.6   7.3 1435 41.8   0.0 0635 49.3   0.4 100   0 24   3 2.5   0.3 13.1   1.6 1437 SW | 230 0.00 0.00 0.211   0.019 592   24 90   10
Kenwood (Wildwood) 8/23/26 95.9   6.8 1529 46.6   2.5 0613 49.3   0.4 96   0 17   4 2.5   0.4 14.7   1.8 1511 WSW | 244 0.00 0.00 0.208   0.018 584   27 20   10
Sonoma Valley (Bedrock) 8/23/26 94.6   4.9 1526 46.0   0.7 0620 47.8   0.2 93   3 14   7 - - - - 0.00 0.00 - - 80   10
Sonoma-West (Arnold) 8/23/26 96.4   6.0 1549 45.5   1.0 0611 49.4   0.7 90   1 17   5 2.2   0.6 13.0   3.6 1634 WSW | 240 0.00 0.00 0.233   0.006 670   5 0   10
Sonoma Valley HS 8/23/26 94.3   7.1 1650 48.7   0.1 0618 54.8   0.4 100   0 22   9 1.7   0.3 9.0   2.4 1635 SE | 146 0.00 0.00 0.198   0.006 594   3 80   10
Sonoma East (Bundschu01) 8/23/26 93.3   8.0 1517 46.5   0.5 0642 51.2   0.4 93   1 19   9 3.2   0.2 13.6   2.0 1706 SSE | 157 0.00 0.00 0.217   0.021 594   5 90   10
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) 8/23/26 94.5   6.7 1527 46.9   1.4 0608 51.7   0.6 93   2 20   8 2.3   0.0 11.5   3.7 1430 SE | 135 0.00 0.00 - - 80   10
Ricci Vineyards (Carneros) 8/23/26 93.2   8.7 1509 47.0   1.3 0647 52.7   1.0 95   0 22   6 3.2   0.3 12.4   5.6 1521 SE | 144 0.00 0.01 0.207   0.009 591   15 100   0
Carneros (Ranch 71) 8/23/26 91.1   9.1 1508 55.6   2.2 0554 54.4   1.9 91   1 25   5 2.6   1.3 10.0   11.1 1517 S | 174 0.00 0.00 0.188   0.009 592   10 90   10
Carneros Upper (Ranch 81) 8/23/26 92.2   9.0 1504 56.6   2.6 0502 55.0   2.4 - - 3.3   3.9 14.7   9.1 1626 SW | 227 - - - - 90   10
Carneros Lower (Ranch 81) 8/23/26 89.8   0.2 1502 49.3   0.6 0627 52.7   0.4 100   0 0   0 1.8   0.6 10.9   2.2 1353 SSE | 164 0.00 0.00 0.128   0.098 320   296 90   10
Rohnert Park-West (Stony Point) 8/23/26 89.6   8.9 1253 41.4   0.5 0617 52.5   1.1 97   1 32   12 1.8   0.4 15.6   2.6 1508 WSW | 254 0.00 0.00 - - 30   10
Cartograph Wines Base 8/23/26 86.5   9.5 1226 50.3   0.3 0633 54.9   0.1 97   1 38   13 3.4   0.5 20.5   0.3 1626 SSW | 210 0.00 0.08 0.200   0.028 607   24 40   20
Cartograph Wines Remote 8/23/26 89.7   10.0 1239 46.4   0.5 0628 - - - - - - - - - - - 30   10
Rice-Spivak Vineyard 8/23/26 89.1   9.2 1233 39.4   0.2 0629 - - - - - - - - - - - 10   10
Penngrove (Asellus) 8/23/26 94.7   11.6 1425 43.9   0.5 0558 49.9   0.2 98   0 16   16 2.0   0.1 12.8   1.4 1511 WNW | 294 0.00 0.00 - - 90   10
Petaluma (Ranch 10) 8/23/26 97.1   13.0 1511 44.7   2.1 0631 50.5   0.5 96   2 16   14 1.6   0.4 12.2   0.3 1718 NNW | 338 0.00 0.00 0.194   0.006 574   5 80   10
Max   97.1 - 56.6 - 55.0 100 38 3.4 20.5 - - 0.00 0.08 0.233 670 -
Avg   - - - - 51.6 - - 2.4 - - - - - - - -
Min   86.5 - 39.4 - 47.8 78 0 1.6 9.0 - - 0.00 0.00 0.128 320 -