Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 7/21/26 4:07 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 7/20/26 80.6   0.6 1539 53.5   5.3 0250 53.1   1.2 96   2 35   4 1.6   0.1 10.1   1.9 0303 N | 10 0.00 0.01 0.107   0.015 300   81 100   0
Lower Bennett Valley 7/20/26 80.9   1.8 1528 55.4   5.1 0412 55.7   2.3 96   4 46   7 2.9   0.3 9.6   2.8 1106 WNW | 302 0.00 0.00 0.156   0.012 450   86 100   0
Kenwood (Wildwood) 7/20/26 85.4   3.6 1513 55.6   4.0 0325 54.7   1.7 92   4 35   3 3.1   0.0 11.2   0.7 1532 NNW | 345 0.00 0.00 0.155   0.035 430   147 100   10
Sonoma Valley (Bedrock) 7/20/26 84.6   0.9 1516 56.1   6.6 0406 53.0   1.8 86   7 33   0 - - - - 0.00 0.00 - - 100   0
Sonoma-West (Arnold) 7/20/26 88.5   0.6 1558 58.1   10.6 0517 53.3   1.4 85   7 16   15 2.8   0.2 11.8   3.7 1615 SW | 224 0.00 0.00 0.170   0.034 482   132 90   10
Sonoma Valley HS 7/20/26 86.5   2.9 1531 57.9   7.6 0101 57.0   2.0 91   8 36   6 2.2   0.1 8.2   3.1 1801 SSE | 167 0.00 0.00 0.145   0.029 424   134 100   0
Sonoma East (Bundschu01) 7/20/26 86.6   3.7 1544 57.8   6.8 0627 54.6   1.8 87   7 34   4 2.6   0.1 12.1   0.7 1746 SW | 219 0.00 0.00 0.143   0.031 390   139 100   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) 7/20/26 87.7   4.0 1536 57.4   5.7 0459 54.5   1.7 87   6 33   4 1.8   0.4 11.1   0.0 1721 SW | 236 0.00 0.00 - - 100   0
Ricci Vineyards (Carneros) 7/20/26 85.3   4.6 1538 57.4   5.2 0406 54.6   1.5 88   7 38   4 3.8   0.8 12.8   1.4 1722 W | 264 0.00 0.01 0.158   0.021 436   108 100   0
Carneros (Ranch 71) 7/20/26 82.8   3.4 1547 56.6   5.0 0549 54.4   1.4 91   5 34   9 3.5   0.2 17.3   3.6 1737 W | 262 0.00 0.00 0.152   0.020 428   134 100   0
Carneros Upper (Ranch 81) 7/20/26 83.7   1.3 1528 56.6   5.0 0547 54.8   22.1 - - 5.3   0.4 18.0   2.1 0540 WSW | 240 - - - - 100   0
Carneros Lower (Ranch 81) 7/20/26 86.3   6.4 1722 57.8   4.7 0556 56.1   2.0 88   4 37   11 1.3   0.3 11.6   1.2 1544 S | 174 0.00 0.00 0.133   0.029 405   123 100   0
Rohnert Park-West (Stony Point) 7/20/26 74.3   0.3 1624 56.0   4.2 0050 56.8   2.6 96   2 57   3 1.8   0.8 14.6   2.1 1438 W | 264 0.00 0.00 - - 70   10
Cartograph Wines Base 7/20/26 72.7   0.9 1310 55.0   4.1 0043 56.8   2.7 97   2 65   5 3.6   0.2 19.6   1.8 1434 SSW | 206 0.00 0.02 0.131   0.003 448   43 30   10
Cartograph Wines Remote 7/20/26 75.3   0.9 1312 55.3   3.5 0042 - - - - - - - - - - - 70   10
Rice-Spivak Vineyard 7/20/26 75.1   0.2 1313 52.1   0.8 0039 - - - - - - - - - - - 70   10
Penngrove (Asellus) 7/20/26 79.2   0.8 1315 56.3   4.7 0101 54.5   2.0 92   5 41   3 3.1   0.4 12.3   0.7 1707 SW | 224 0.00 0.00 - - 100   20
Petaluma (Ranch 10) 7/20/26 83.1   0.3 1350 57.0   3.8 0101 55.0   2.2 89   3 37   1 2.7   0.4 12.3   0.8 1408 WSW | 255 0.00 0.00 0.167   0.001 500   22 100   0
Max   88.5 - 58.1 - 57.0 97 65 5.3 19.6 - - 0.00 0.02 0.170 500 -
Avg   - - - - 54.9 - - 2.8 - - - - - - - -
Min   72.7 - 52.1 - 53.0 85 16 1.3 8.2 - - 0.00 0.00 0.107 300 -