Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 8/20/26 6:30 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 8/19/26 85.7   0.5 1513 51.5   0.1 0313 53.7   0.4 98   0 37   3 1.4   0.0 10.3   1.5 1527 S | 177 0.00 0.01 0.145   0.006 445   11 90   10
Lower Bennett Valley 8/19/26 88.2   0.4 1506 53.2   0.1 0057 55.5   0.2 100   0 36   1 3.3   0.5 13.8   1.8 1940 ESE | 115 0.00 0.00 0.188   0.002 571   2 80   10
Kenwood (Wildwood) 8/19/26 91.6   0.6 1510 53.0   0.9 0214 54.5   0.2 97   1 31   2 3.1   0.2 11.3   0.9 1634 NW | 320 0.00 0.00 0.189   0.004 576   6 0   10
Sonoma Valley (Bedrock) 8/19/26 85.9   0.9 1517 49.8   4.3 0328 52.8   0.1 94   2 35   4 - - - - 0.00 0.00 - - 80   10
Sonoma-West (Arnold) 8/19/26 89.6   0.6 1646 49.0   1.9 0101 53.3   0.2 93   0 32   3 2.3   0.5 14.0   1.5 1700 SSW | 199 0.00 0.00 0.198   0.016 598   56 0   10
Sonoma Valley HS 8/19/26 84.4   1.1 1722 52.8   0.7 0053 56.8   0.2 100   1 45   3 2.1   0.2 9.4   2.1 1831 E | 94 0.00 0.00 0.168   0.014 537   56 100   0
Sonoma East (Bundschu01) 8/19/26 83.0   1.2 1603 50.7   0.8 0300 54.4   0.2 94   0 42   3 3.4   0.2 15.3   1.3 1739 ESE | 116 0.00 0.00 0.179   0.011 550   41 100   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) 8/19/26 83.5   2.1 1602 52.1   2.2 0231 54.6   0.3 94   1 42   4 2.4   0.2 11.1   0.7 1621 S | 187 0.00 0.00 - - 100   0
Ricci Vineyards (Carneros) 8/19/26 80.6   1.2 1537 53.6   1.2 0228 54.7   0.4 94   0 45   9 3.6   0.5 12.7   2.2 1733 SSE | 154 0.00 0.01 0.168   0.015 524   55 100   0
Carneros (Ranch 71) 8/19/26 79.3   0.8 1547 53.6   0.8 0038 55.0   0.6 96   0 48   8 2.8   1.2 13.7   3.3 1930 W | 262 0.00 0.00 0.154   0.020 516   54 100   0
Carneros Upper (Ranch 81) 8/19/26 81.0   0.0 1551 53.6   0.7 0051 40.0   13.1 - - 4.7   1.0 16.1   0.0 2104 W | 262 - - - - 100   0
Carneros Lower (Ranch 81) 8/19/26 79.8   0.2 1605 53.9   1.0 0059 55.5   0.2 93   0 49   1 1.7   0.3 12.2   0.1 1434 S | 179 0.00 0.00 0.148   0.011 479   44 100   0
Rohnert Park-West (Stony Point) 8/19/26 78.8   2.0 1305 54.2   0.5 0058 56.3   0.0 98   1 53   6 2.4   0.2 18.1   0.7 1618 SW | 227 0.00 0.00 - - 0   0
Cartograph Wines Base 8/19/26 76.0   2.1 1502 53.2   0.5 0043 56.0   0.0 99   0 59   6 3.1   0.9 22.1   0.7 1543 SSW | 201 0.00 0.07 0.147   0.002 525   11 0   0
Cartograph Wines Remote 8/19/26 78.2   1.5 1233 54.0   0.4 0045 - - - - - - - - - - - 0   0
Rice-Spivak Vineyard 8/19/26 79.1   1.4 1249 53.6   0.6 0042 - - - - - - - - - - - 0   0
Penngrove (Asellus) 8/19/26 84.8   1.0 1448 54.1   0.2 0032 54.5   0.2 96   1 36   2 3.0   0.6 15.0   2.0 1616 WNW | 282 0.00 0.00 - - 70   20
Petaluma (Ranch 10) 8/19/26 88.2   0.3 1453 54.9   0.2 0053 55.0   0.4 93   0 34   4 2.4   0.4 11.5   1.0 1634 WSW | 254 0.00 0.00 0.171   0.001 536   7 60   10
Max   91.6 - 54.9 - 56.8 100 59 4.7 22.1 - - 0.00 0.07 0.198 598 -
Avg   - - - - 53.9 - - 2.8 - - - - - - - -
Min   76.0 - 49.0 - 40.0 93 31 1.4 9.4 - - 0.00 0.00 0.145 445 -