Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 5/17/26 8:40 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 5/16/26 77.0   1.6 1547 47.4   1.2 0537 38.6   4.2 72   9 25   2 2.7   0.1 14.3   1.2 0120 N | 350 0.00 5.84 0.173   0.007 538   8 80   20
Lower Bennett Valley 5/16/26 78.2   0.6 1532 51.6   5.3 0550 41.0   4.6 65   18 27   7 7.0   1.5 21.2   1.1 0140 NNW | 333 0.00 27.61 0.237   0.006 672   12 90   20
Kenwood (Wildwood) 5/16/26 78.4   2.4 1531 47.2   3.4 0427 41.7   4.0 85   10 26   0 4.7   1.4 17.3   0.1 1650 NW | 320 0.00 31.95 0.221   0.001 665   12 100   0
Sonoma Valley (Bedrock) 5/16/26 78.6   4.6 1633 52.8   7.4 0623 38.4   4.9 58   31 23   2 - - - - 0.00 27.98 - - 100   0
Sonoma-West (Arnold) 5/16/26 78.5   2.1 1353 50.9   9.7 0026 41.2   4.7 73   27 25   4 5.2   1.0 24.6   5.6 0608 NW | 308 0.00 17.88 0.258   0.001 777   8 100   0
Sonoma Valley HS 5/16/26 78.8   0.9 1408 54.9   10.1 0602 44.4   4.9 64   36 28   7 4.0   1.2 9.8   0.9 0052 NW | 326 0.00 6.62 0.221   0.002 709   5 70   20
Sonoma East (Bundschu01) 5/16/26 79.6   0.8 1426 50.9   8.2 0018 40.5   5.7 73   21 22   7 6.4   3.5 20.2   1.3 1430 W | 268 0.00 21.64 0.255   0.029 713   8 100   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) 5/16/26 79.5   0.8 1409 52.5   9.2 2337 40.9   4.9 69   24 24   4 6.1   2.8 20.2   4.4 1645 WSW | 249 0.00 18.49 - - 80   20
Ricci Vineyards (Carneros) 5/16/26 77.6   3.1 1422 50.1   7.2 0519 41.9   4.7 73   22 28   2 9.1   4.4 20.4   1.0 1633 WSW | 238 0.00 22.95 0.260   0.021 716   7 80   20
Carneros (Ranch 71) 5/16/26 76.0   1.8 1319 51.8   1.7 0017 41.2   4.8 70   9 29   1 9.2   4.2 27.0   3.5 1635 W | 267 0.00 19.86 0.260   0.023 716   6 60   20
Carneros Upper (Ranch 81) 5/16/26 76.8   2.1 1415 51.7   0.3 0019 40.4   5.7 - - 10.5   4.1 27.9   2.9 1603 W | 261 - - - - 60   20
Carneros Lower (Ranch 81) 5/16/26 81.9   2.7 1424 48.7   4.0 0613 42.8   3.3 71   29 27   26 2.0   1.0 14.3   2.2 1223 NNW | 336 0.00 19.42 0.189   0.002 604   9 80   20
Rohnert Park-West (Stony Point) 5/16/26 76.1   0.6 1359 44.1   0.6 0539 45.8   3.3 88   10 34   11 3.6   1.6 16.9   3.4 1124 NNW | 345 0.00 11.83 - - 0   0
Cartograph Wines Base 5/16/26 72.8   0.2 1405 47.9   2.5 0544 46.1   3.0 84   2 36   13 5.0   0.3 17.6   1.8 1526 SSW | 194 0.00 28.36 0.199   0.001 686   15 0   0
Cartograph Wines Remote 5/16/26 75.0   1.5 1223 44.0   0.9 0611 - - - - - - - - - - - 0   0
Rice-Spivak Vineyard 5/16/26 75.2   0.8 1355 36.4   0.7 0433 - - - - - - - - - - - 0   0
Penngrove (Asellus) 5/16/26 77.1   0.2 1328 42.7   1.2 0511 43.0   3.5 88   9 27   7 4.8   2.3 18.1   5.4 0957 NW | 326 0.26 51.20 - - 60   60
Petaluma (Ranch 10) 5/16/26 75.6   3.0 1403 49.8   6.5 0459 42.0   2.9 71   24 27   3 6.6   2.6 18.7   3.6 1200 NW | 306 0.00 19.63 0.238   0.007 694   14 100   20
Max   81.9 - 54.9 - 46.1 88 36 10.5 27.9 - - 0.26 51.20 0.260 777 -
Avg   - - - - 41.9 - - 5.8 - - - - - - - -
Min   72.8 - 36.4 - 38.4 58 22 2.0 9.8 - - 0.00 5.84 0.173 538 -