Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 9/18/26 1:41 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 9/17/26 74.6   3.0 1543 49.1   3.9 0401 50.9   0.4 97   1 43   3 1.7   0.4 11.5   0.0 1358 SE | 146 0.00 0.02 0.095   0.007 307   42 90   10
Lower Bennett Valley 9/17/26 75.2   3.1 1513 47.4   5.4 0046 51.9   0.8 100   5 45   5 2.1   1.8 13.6   5.6 1651 SSW | 199 0.00 0.39 0.100   0.030 316   146 80   10
Kenwood (Wildwood) 9/17/26 76.5   2.4 1617 50.9   2.8 0059 51.4   0.2 94   5 42   3 2.1   1.2 14.8   6.3 1814 NNW | 335 0.00 0.21 0.102   0.028 330   113 50   10
Sonoma Valley (Bedrock) 9/17/26 75.3   2.9 1527 48.7   4.2 0618 50.3   0.2 94   5 42   3 - - - - 0.00 0.29 - - 80   10
Sonoma-West (Arnold) 9/17/26 77.1   4.0 1541 50.2   6.9 0049 51.6   0.1 89   7 43   3 2.7   1.9 16.7   4.2 1721 WNW | 285 0.00 0.35 0.115   0.050 349   209 70   10
Sonoma Valley HS 9/17/26 75.8   4.2 1449 53.4   3.2 0040 54.5   0.5 94   4 51   4 1.8   1.3 9.6   1.9 1846 W | 261 0.00 0.01 0.109   0.030 362   141 80   10
Sonoma East (Bundschu01) 9/17/26 74.4   1.3 1618 50.1   5.2 0054 51.9   0.1 90   2 47   0 2.6   1.5 15.6   4.8 1453 SE | 130 0.00 0.23 0.100   0.049 295   211 80   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) 9/17/26 76.0   2.5 1423 50.8   4.6 0059 52.0   0.1 87   0 44   1 2.4   1.8 12.8   3.7 1457 SE | 129 0.00 0.18 - - 100   10
Ricci Vineyards (Carneros) 9/17/26 75.0   1.3 1538 56.1   2.4 0054 53.0   1.2 89   1 45   0 4.1   0.5 17.1   9.0 1842 W | 278 0.00 0.12 0.108   0.040 318   174 90   10
Carneros (Ranch 71) 9/17/26 73.4   2.4 1609 55.7   0.4 0020 52.6   0.8 88   1 49   1 3.8   2.6 19.3   2.0 1853 WSW | 254 0.00 0.07 0.100   0.050 304   210 70   10
Carneros Upper (Ranch 81) 9/17/26 74.0   1.8 1641 56.2   1.3 0103 52.3   0.6 - - 5.8   3.6 25.2   5.5 1855 W | 261 - - - - 70   10
Carneros Lower (Ranch 81) 9/17/26 76.4   3.2 1552 56.0   1.7 0101 53.4   0.6 89   3 45   6 1.4   0.1 11.6   7.8 1717 SSE | 167 0.00 0.01 0.020   0.003 4   1 70   10
Rohnert Park-West (Stony Point) 9/17/26 74.7   4.3 1402 48.8   6.1 2355 53.4   0.7 96   2 51   5 1.7   1.3 17.0   1.2 1608 W | 265 0.01 0.20 - - 70   10
Cartograph Wines Base 9/17/26 74.0   5.2 1507 54.1   1.0 0518 55.1   0.8 96   0 55   7 3.3   2.0 18.3   9.2 1811 SW | 221 0.00 0.30 0.110   0.007 372   69 30   10
Cartograph Wines Remote 9/17/26 73.4   2.3 1352 52.4   1.8 2348 - - - - - - - - - - - 70   10
Rice-Spivak Vineyard 9/17/26 75.2   1.8 1344 47.4   7.8 2356 - - - - - - - - - - - 70   10
Penngrove (Asellus) 9/17/26 78.0   6.6 1450 48.9   5.0 2347 51.9   0.2 95   1 39   10 2.1   0.8 17.4   1.5 1622 W | 270 0.00 0.57 - - 40   10
Petaluma (Ranch 10) 9/17/26 77.8   6.1 1602 50.6   4.9 0022 53.0   0.7 95   5 40   10 1.5   1.5 11.7   4.1 1644 WSW | 253 0.00 0.09 0.110   0.016 354   64 100   10
Max   78.0 - 56.2 - 55.1 100 55 5.8 25.2 - - 0.01 0.57 0.115 372 -
Avg   - - - - 52.4 - - 2.6 - - - - - - - -
Min   73.4 - 47.4 - 50.3 87 39 1.4 9.6 - - 0.00 0.01 0.020 4 -