Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 9/19/26 3:59 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 9/18/26 81.0   6.4 1537 51.3   2.2 0517 51.4   0.5 95   1 34   10 1.8   0.0 9.2   2.3 1323 SE | 145 0.00 0.02 0.118   0.023 368   62 80   10
Lower Bennett Valley 9/18/26 81.3   6.1 1356 42.3   5.2 0648 51.0   0.9 100   0 36   8 3.3   1.3 14.0   0.4 1422 SW | 215 0.00 0.39 0.151   0.051 482   165 100   20
Kenwood (Wildwood) 9/18/26 83.2   6.7 1403 48.4   2.5 0711 51.2   0.2 100   5 33   9 3.1   1.0 14.2   0.5 1701 N | 350 0.00 0.21 0.152   0.050 466   136 70   20
Sonoma Valley (Bedrock) 9/18/26 83.8   8.5 1439 45.0   3.7 0636 49.4   0.9 96   2 27   15 - - - - 0.00 0.29 - - 100   20
Sonoma-West (Arnold) 9/18/26 83.6   6.5 1345 45.8   4.4 0602 49.8   1.8 95   6 29   13 3.0   0.4 18.2   1.5 1654 WSW | 252 0.00 0.35 0.188   0.073 561   212 90   20
Sonoma Valley HS 9/18/26 82.7   6.9 1437 48.6   4.8 0659 53.7   0.8 100   6 37   13 2.1   0.4 11.7   2.1 1728 SW | 236 0.00 0.01 0.156   0.047 507   145 100   20
Sonoma East (Bundschu01) 9/18/26 84.2   9.8 1443 46.2   3.9 0709 50.7   1.2 96   6 30   18 3.1   0.5 18.8   3.3 1734 SW | 236 0.00 0.23 0.169   0.069 513   218 100   20
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) 9/18/26 84.6   8.6 1508 49.0   1.8 0500 51.5   0.5 94   7 29   15 2.8   0.5 16.5   3.7 1617 WSW | 243 0.00 0.18 - - 100   0
Ricci Vineyards (Carneros) 9/18/26 83.8   8.8 1433 51.4   4.7 0058 52.8   0.2 96   8 31   14 4.4   0.3 20.8   3.7 1909 WNW | 296 0.00 0.12 0.177   0.069 525   207 80   10
Carneros (Ranch 71) 9/18/26 81.7   8.3 1433 52.4   3.2 0708 52.9   0.3 100   12 33   16 4.9   1.2 27.8   8.5 1647 WSW | 254 0.00 0.07 0.176   0.076 518   213 90   20
Carneros Upper (Ranch 81) 9/18/26 83.1   9.1 1454 52.0   4.2 0639 27.4   24.9 - - 7.1   1.3 28.5   3.3 1750 W | 275 - - - - 90   20
Carneros Lower (Ranch 81) 9/18/26 88.6   12.2 1541 50.1   6.0 0733 50.7   2.7 100   11 0   45 1.3   0.2 14.0   2.4 1414 S | 175 0.00 0.01 0.022   0.002 15   11 60   10
Rohnert Park-West (Stony Point) 9/18/26 77.6   2.9 1426 47.4   1.4 0142 54.0   0.6 98   2 47   4 2.0   0.3 18.8   1.9 1703 SW | 234 0.00 0.20 - - 60   10
Cartograph Wines Base 9/18/26 74.7   0.6 1422 52.3   1.8 0059 55.3   0.1 98   2 52   3 4.0   0.8 21.5   3.2 1510 SSW | 197 0.00 0.30 0.136   0.026 496   124 20   10
Cartograph Wines Remote 9/18/26 75.3   1.9 1256 49.8   2.6 0059 - - - - - - - - - - - 60   10
Rice-Spivak Vineyard 9/18/26 77.3   2.1 1309 45.4   2.0 0101 - - - - - - - - - - - 60   10
Penngrove (Asellus) 9/18/26 78.4   0.4 1328 49.3   0.4 0059 53.4   1.5 98   3 40   2 2.2   0.1 14.1   3.2 1712 WNW | 295 0.00 0.57 - - 30   10
Petaluma (Ranch 10) 9/18/26 81.6   3.8 1357 49.9   0.7 0058 53.9   0.8 95   0 36   4 2.7   1.2 11.4   0.3 1219 NNW | 334 0.00 0.09 0.142   0.032 452   98 100   0
Max   88.6 - 52.4 - 55.3 100 52 7.1 28.5 - - 0.00 0.57 0.188 561 -
Avg   - - - - 50.6 - - 3.2 - - - - - - - -
Min   74.7 - 42.3 - 27.4 94 0 1.3 9.2 - - 0.00 0.01 0.022 15 -