Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 8/22/26 9:26 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 8/21/26 79.7   1.8 1349 51.0   0.5 0203 52.8   0.3 98   0 38   6 1.5   0.1 10.1   1.2 1341 SSW | 208 0.00 0.01 0.134   0.016 415   22 90   10
Lower Bennett Valley 8/21/26 81.1   2.4 1313 53.6   1.3 0132 54.6   0.2 100   0 39   6 4.4   0.3 15.6   0.1 1407 SSE | 168 0.00 0.00 0.178   0.025 550   32 90   20
Kenwood (Wildwood) 8/21/26 84.2   0.7 1347 54.2   2.0 0208 53.4   0.2 96   4 34   3 3.5   0.0 14.0   0.4 1421 N | 0 0.00 0.00 0.184   0.010 572   7 40   20
Sonoma Valley (Bedrock) 8/21/26 85.2   0.0 1511 51.0   1.8 0218 50.9   0.8 94   1 23   8 - - - - 0.00 0.00 - - 100   0
Sonoma-West (Arnold) 8/21/26 85.8   0.8 1315 50.2   1.9 0232 52.0   0.3 93   1 32   1 3.3   0.4 21.5   5.6 1535 W | 270 0.00 0.00 0.224   0.012 651   11 20   20
Sonoma Valley HS 8/21/26 82.6   0.9 1410 52.9   0.9 0301 55.8   0.5 99   1 43   0 2.5   0.3 10.0   3.4 1844 SSW | 196 0.00 0.00 0.182   0.006 572   11 100   0
Sonoma East (Bundschu01) 8/21/26 83.5   0.6 1336 52.3   0.5 0216 53.4   0.2 94   0 37   1 3.7   0.7 23.4   6.3 1515 WSW | 245 0.00 0.00 0.194   0.015 571   11 100   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) 8/21/26 84.2   0.1 1350 53.8   0.8 0304 53.5   0.3 93   1 35   0 3.9   0.4 20.5   5.7 1638 SSW | 213 0.00 0.00 - - 100   0
Ricci Vineyards (Carneros) 8/21/26 83.6   0.8 1350 55.9   2.3 0232 53.7   0.4 93   2 35   1 7.7   1.1 22.0   1.2 1805 W | 267 0.00 0.01 0.203   0.017 557   9 100   0
Carneros (Ranch 71) 8/21/26 81.3   0.4 1340 55.0   2.0 0231 53.6   0.4 96   0 38   0 8.1   1.0 28.2   6.8 1716 WSW | 256 0.00 0.00 0.196   0.015 551   20 100   0
Carneros Upper (Ranch 81) 8/21/26 82.5   0.1 1343 55.0   2.0 0228 32.7   1.2 - - 11.2   0.8 28.3   1.2 1617 WSW | 246 - - - - 100   0
Carneros Lower (Ranch 81) 8/21/26 89.4   0.3 1407 55.4   1.6 0210 54.5   0.2 93   0 31   1 0.8   0.1 12.2   1.6 1721 WNW | 295 0.00 0.00 0.045   0.116 113   413 80   10
Rohnert Park-West (Stony Point) 8/21/26 75.4   4.1 1230 50.1   3.2 0059 55.6   0.2 96   3 54   7 2.1   0.1 20.2   4.7 1554 WSW | 256 0.00 0.00 - - 20   20
Cartograph Wines Base 8/21/26 73.7   3.8 1439 53.7   0.9 0101 56.1   0.9 98   2 58   8 4.6   0.3 24.6   3.9 1514 SW | 225 0.00 0.08 0.153   0.030 539   47 0   0
Cartograph Wines Remote 8/21/26 74.8   5.2 1201 50.9   2.6 0059 - - - - - - - - - - - 20   20
Rice-Spivak Vineyard 8/21/26 75.3   2.7 1406 46.1   7.0 0059 - - - - - - - - - - - 0   0
Penngrove (Asellus) 8/21/26 77.2   2.5 1356 50.6   2.8 0059 53.8   0.0 94   3 45   4 2.8   0.0 13.8   0.7 1516 SSW | 199 0.00 0.00 - - 80   20
Petaluma (Ranch 10) 8/21/26 77.6   0.2 1320 52.3   2.2 0101 54.1   0.0 90   5 44   1 3.4   0.0 16.4   1.8 1706 WSW | 250 0.00 0.00 0.175   0.022 562   49 70   20
Max   89.4 - 55.9 - 56.1 100 58 11.2 28.3 - - 0.00 0.08 0.224 651 -
Avg   - - - - 52.5 - - 4.2 - - - - - - - -
Min   73.7 - 46.1 - 32.7 90 23 0.8 10.0 - - 0.00 0.00 0.045 113 -