Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 9/16/26 7:58 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 9/15/26 83.7   0.1 1437 50.2   2.7 2114 49.3   4.0 96   17 31   10 2.0   0.0 11.0   0.6 1716 SSE | 150 0.00 0.02 0.128   0.003 394   21 100   0
Lower Bennett Valley 9/15/26 85.2   0.2 1419 41.4   0.6 0448 49.5   2.9 100   0 30   9 3.0   0.4 13.5   2.1 1532 SW | 219 0.00 0.39 0.160   0.007 499   21 100   0
Kenwood (Wildwood) 9/15/26 84.2   2.1 1428 44.2   0.1 0424 49.8   4.3 100   4 35   16 2.6   0.3 12.1   2.6 1505 WSW | 252 0.00 0.21 0.157   0.006 488   15 70   20
Sonoma Valley (Bedrock) 9/15/26 79.7   6.6 1411 44.0   0.2 0500 48.1   4.0 93   0 37   18 - - - - 0.00 0.29 - - 100   20
Sonoma-West (Arnold) 9/15/26 79.5   7.9 1328 46.0   3.0 0415 48.9   4.5 89   4 38   19 2.8   0.1 12.5   4.8 1423 SE | 132 0.00 0.35 0.183   0.021 578   8 90   20
Sonoma Valley HS 9/15/26 78.6   8.7 1413 47.0   1.0 0503 52.4   2.4 96   4 46   21 2.0   0.3 12.3   2.2 1628 E | 90 0.00 0.01 0.153   0.014 519   6 100   10
Sonoma East (Bundschu01) 9/15/26 78.4   9.0 1424 45.0   2.0 0518 49.8   3.6 94   2 39   19 3.7   0.9 15.1   4.8 1551 SE | 128 0.00 0.23 0.167   0.017 532   10 100   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) 9/15/26 78.9   10.7 1402 45.0   1.2 0505 49.9   3.4 93   1 39   18 2.8   0.4 13.1   1.3 1524 SE | 140 0.00 0.18 - - 100   10
Ricci Vineyards (Carneros) 9/15/26 76.3   9.8 1414 46.6   1.7 0530 50.3   2.3 92   3 41   18 4.1   0.6 16.0   1.4 1505 SSE | 165 0.00 0.12 0.166   0.029 541   4 90   10
Carneros (Ranch 71) 9/15/26 74.7   10.3 1406 54.7   1.1 2248 53.1   4.3 92   5 44   22 4.0   0.5 13.6   8.2 1510 S | 174 0.00 0.07 0.151   0.041 526   7 90   10
Carneros Upper (Ranch 81) 9/15/26 76.7   8.6 1431 54.4   0.4 2252 52.9   4.1 - - 6.0   1.2 17.9   4.8 1535 SSW | 197 - - - - 90   10
Carneros Lower (Ranch 81) 9/15/26 77.6   7.9 1402 50.5   4.0 0424 47.8   0.9 100   0 0   0 1.8   0.4 13.1   0.5 1542 S | 184 0.00 0.01 0.025   0.007 0   0 90   10
Rohnert Park-West (Stony Point) 9/15/26 82.1   2.0 1308 40.3   1.1 0504 50.9   1.4 98   0 40   9 2.5   0.8 21.3   5.3 1543 WSW | 252 0.00 0.19 - - 90   10
Cartograph Wines Base 9/15/26 79.3   1.8 1243 49.6   2.1 0650 53.6   0.8 98   4 45   9 4.0   0.6 22.7   3.6 1530 SSW | 212 0.00 0.30 0.143   0.015 515   10 50   10
Cartograph Wines Remote 9/15/26 81.5   1.9 1215 46.2   0.8 0510 - - - - - - - - - - - 90   10
Rice-Spivak Vineyard 9/15/26 83.0   1.3 1211 39.2   0.6 0446 - - - - - - - - - - - 90   10
Penngrove (Asellus) 9/15/26 85.4   0.7 1346 42.3   1.1 0511 49.5   1.8 96   1 28   7 2.1   0.1 13.8   2.4 1203 SSW | 202 0.00 0.55 - - 60   10
Petaluma (Ranch 10) 9/15/26 85.3   1.1 1415 44.1   0.1 0422 49.9   2.6 94   2 32   11 1.7   0.1 13.1   0.0 1549 W | 276 0.00 0.09 0.152   0.010 490   2 100   10
Max   85.4 - 54.7 - 53.6 100 46 6.0 22.7 - - 0.00 0.55 0.183 578 -
Avg   - - - - 50.4 - - 3.0 - - - - - - - -
Min   74.7 - 39.2 - 47.8 89 0 1.7 11.0 - - 0.00 0.01 0.025 0 -