Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 9/26/26 12:30 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 9/24/26 88.6   1.6 1413 60.1   9.8 0059 48.0   3.2 66   29 21   7 2.0   0.2 10.4   0.5 1541 SSW | 198 0.00 0.02 0.120   0.002 318   33 60   10
Lower Bennett Valley 9/24/26 90.4   2.1 1352 45.4   2.8 0500 48.7   1.4 100   0 19   8 2.7   0.7 14.8   3.6 1403 SW | 220 0.00 0.39 0.160   0.005 427   29 40   10
Kenwood (Wildwood) 9/24/26 92.6   1.9 1348 48.3   4.3 0618 48.4   4.3 94   6 19   9 2.6   0.3 14.4   3.5 1523 NNW | 337 0.00 0.21 0.155   0.002 424   23 40   10
Sonoma Valley (Bedrock) 9/24/26 92.9   3.0 1505 48.9   4.2 0517 46.8   4.5 90   6 16   10 - - - - 0.00 0.29 - - 40   10
Sonoma-West (Arnold) 9/24/26 93.6   1.9 1407 49.8   4.7 0443 47.3   4.9 90   5 17   9 2.4   0.1 19.3   6.0 1608 SW | 233 0.00 0.35 0.178   0.004 485   38 60   10
Sonoma Valley HS 9/24/26 90.9   0.6 1425 50.1   5.4 0517 52.6   3.6 100   1 28   3 1.6   0.1 11.2   2.3 1809 W | 276 0.00 0.01 0.152   0.004 441   27 40   10
Sonoma East (Bundschu01) 9/24/26 91.1   0.6 1401 47.5   6.0 0651 48.3   4.4 94   2 23   3 2.7   0.5 15.8   3.5 1625 W | 261 0.00 0.23 0.166   0.010 443   27 50   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) 9/24/26 92.1   2.4 1324 47.8   6.5 0632 48.2   4.4 92   1 22   1 1.9   0.8 15.2   4.4 1801 SW | 222 0.00 0.18 - - 50   10
Ricci Vineyards (Carneros) 9/24/26 90.0   2.8 1329 48.6   5.0 0651 48.9   4.2 94   1 24   1 3.3   0.8 15.2   3.4 1602 W | 274 0.00 0.12 0.179   0.014 470   11 60   10
Carneros (Ranch 71) 9/24/26 88.4   2.2 1337 59.1   3.5 0054 49.7   3.3 75   21 25   1 3.6   0.8 21.4   7.8 1754 W | 261 0.00 0.07 0.178   0.020 458   0 30   10
Carneros Upper (Ranch 81) 9/24/26 88.5   2.4 1343 59.9   4.5 0046 49.7   8.3 - - 7.0   3.5 23.6   7.2 1738 WSW | 248 - - - - 30   10
Carneros Lower (Ranch 81) 9/24/26 88.0   7.3 1301 51.7   3.9 0704 50.0   4.0 100   8 0   23 1.3   0.4 12.1   4.2 1435 SSE | 153 0.00 0.01 0.067   0.048 118   106 30   10
Rohnert Park-West (Stony Point) 9/24/26 86.8   1.4 1235 43.0   0.7 0706 50.0   2.5 98   0 33   4 1.5   0.2 15.8   2.2 1428 W | 263 0.00 0.21 - - 30   10
Cartograph Wines Base 9/24/26 83.5   0.1 1216 53.3   3.4 0559 52.8   1.7 91   8 37   3 3.5   0.8 19.8   2.8 1749 WSW | 242 0.00 0.32 0.151   0.000 448   20 40   20
Cartograph Wines Remote 9/24/26 86.5   5.1 1217 48.2   1.8 0707 - - - - - - - - - - - 60   20
Rice-Spivak Vineyard 9/24/26 87.0   1.9 1202 41.6   1.1 0609 - - - - - - - - - - - 60   20
Penngrove (Asellus) 9/24/26 91.0   3.2 1306 45.2   0.7 0606 48.1   2.4 95   2 23   5 1.8   0.0 15.2   3.7 1416 W | 262 0.00 0.57 - - 0   0
Petaluma (Ranch 10) 9/24/26 91.9   2.0 1342 46.0   1.7 0646 47.9   3.8 94   1 23   4 1.7   0.5 12.0   2.2 1723 WSW | 249 0.00 0.09 0.147   0.005 404   34 40   10
Max   93.6 - 60.1 - 52.8 100 37 7.0 23.6 - - 0.00 0.57 0.179 485 -
Avg   - - - - 49.1 - - 2.6 - - - - - - - -
Min   83.5 - 41.6 - 46.8 66 0 1.3 10.4 - - 0.00 0.01 0.067 118 -