Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 9/24/26 11:02 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 9/23/26 87.0   8.8 1606 50.3   0.9 0653 51.2   0.3 96   2 28   13 1.8   0.4 10.0   1.0 1512 SSE | 168 0.00 0.02 0.122   0.026 352   20 70   10
Lower Bennett Valley 9/23/26 88.3   9.4 1414 42.6   2.1 0336 50.0   2.6 100   0 28   15 1.9   0.3 11.2   1.2 1537 SSW | 195 0.00 0.39 0.155   0.034 456   28 50   10
Kenwood (Wildwood) 9/23/26 90.7   9.3 1500 52.6   2.6 0831 52.7   0.2 100   0 28   10 2.3   0.3 10.9   0.6 1626 NNW | 338 0.00 0.21 0.153   0.022 446   0 50   10
Sonoma Valley (Bedrock) 9/23/26 89.9   12.9 1556 53.1   2.5 0705 51.3   0.2 96   3 26   16 - - - - 0.00 0.29 - - 50   10
Sonoma-West (Arnold) 9/23/26 91.7   14.0 1518 54.5   3.8 0052 52.2   0.2 94   2 26   15 2.5   0.1 13.3   1.9 1556 SW | 232 0.00 0.35 0.182   0.040 523   56 70   10
Sonoma Valley HS 9/23/26 91.5   16.2 1514 55.5   1.0 0725 56.2   1.1 99   2 31   20 1.5   0.7 8.9   0.5 1620 WNW | 287 0.00 0.01 0.148   0.028 468   46 50   10
Sonoma East (Bundschu01) 9/23/26 91.7   17.2 1536 53.5   1.1 0059 52.7   0.5 92   1 26   23 2.2   1.3 12.3   1.8 1656 WSW | 249 0.00 0.23 0.156   0.027 470   42 60   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) 9/23/26 94.5   19.0 1527 54.2   0.2 0050 52.6   0.6 91   1 23   24 1.1   1.2 10.8   0.3 1403 SSW | 199 0.00 0.18 - - 60   10
Ricci Vineyards (Carneros) 9/23/26 92.8   20.1 1545 53.6   0.3 0101 53.1   0.1 93   0 25   27 2.6   1.3 11.8   1.9 1846 WNW | 282 0.00 0.12 0.165   0.038 481   51 70   10
Carneros (Ranch 71) 9/23/26 90.6   19.1 1558 55.6   2.1 0733 53.0   0.5 96   2 24   30 2.8   0.6 13.6   1.3 1805 WSW | 256 0.00 0.07 0.158   0.048 458   63 40   10
Carneros Upper (Ranch 81) 9/23/26 90.9   17.4 1556 55.4   1.9 0754 41.4   9.7 - - 3.5   1.7 16.4   1.1 1818 W | 264 - - - - 40   10
Carneros Lower (Ranch 81) 9/23/26 95.3   21.8 1529 55.6   1.3 0059 54.0   0.1 92   0 23   31 0.8   0.6 7.8   4.4 1433 SSE | 163 0.00 0.01 0.019   0.002 12   6 40   10
Rohnert Park-West (Stony Point) 9/23/26 85.4   10.0 1346 43.7   0.4 0149 52.4   0.8 99   2 37   13 1.3   0.1 13.6   1.5 1551 WSW | 255 0.00 0.21 - - 40   20
Cartograph Wines Base 9/23/26 83.4   10.7 1527 49.9   1.1 0156 54.4   0.4 99   1 41   17 2.7   0.1 17.0   1.4 1648 WSW | 239 0.01 0.32 0.151   0.041 468   65 20   20
Cartograph Wines Remote 9/23/26 81.4   10.7 1217 46.4   1.1 0139 - - - - - - - - - - - 40   20
Rice-Spivak Vineyard 9/23/26 85.1   10.2 1502 40.5   0.5 0134 - - - - - - - - - - - 40   20
Penngrove (Asellus) 9/23/26 87.8   8.5 1337 44.5   1.8 0304 50.4   1.1 97   2 28   12 1.8   0.1 11.4   1.2 1456 W | 275 0.00 0.57 - - 0   0
Petaluma (Ranch 10) 9/23/26 89.9   7.3 1552 47.7   0.1 0102 51.7   0.1 94   1 27   11 1.2   0.4 9.7   2.5 1725 WNW | 300 0.00 0.09 0.142   0.026 438   54 50   10
Max   95.3 - 55.6 - 56.2 100 41 3.5 17.0 - - 0.01 0.57 0.182 523 -
Avg   - - - - 51.8 - - 2.0 - - - - - - - -
Min   81.4 - 40.5 - 41.4 91 23 0.8 7.8 - - 0.00 0.01 0.019 12 -