Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 5/20/26 9:18 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 5/19/26 85.6   3.2 1555 56.3   0.4 0436 30.3   7.4 47   7 10   5 2.9   0.4 13.2   2.5 1153 S | 175 0.00 5.84 0.237   0.010 677   37 80   20
Lower Bennett Valley 5/19/26 87.7   3.6 1424 38.9   3.5 0604 39.2   10.8 93   4 10   5 2.5   3.0 17.0   11.9 1522 SSW | 213 0.00 27.61 0.246   0.037 689   15 90   10
Kenwood (Wildwood) 5/19/26 88.0   4.5 1508 46.6   4.4 0644 35.6   10.0 73   10 10   5 3.0   1.9 17.0   11.6 1651 N | 11 0.00 31.95 0.236   0.036 681   16 90   10
Sonoma Valley (Bedrock) 5/19/26 88.2   4.0 1519 44.1   10.3 0550 32.2   10.4 72   27 8   4 - - - - 0.00 27.98 - - 90   10
Sonoma-West (Arnold) 5/19/26 90.8   4.0 1411 39.8   7.5 0550 36.1   11.6 88   14 9   4 3.0   2.2 21.3   0.9 1601 W | 265 0.00 17.88 0.293   0.028 798   20 90   10
Sonoma Valley HS 5/19/26 90.0   4.3 1519 45.1   5.8 0615 41.0   10.8 84   14 12   4 2.4   2.5 10.3   12.0 1809 W | 259 0.00 6.62 0.254   0.038 723   22 90   10
Sonoma East (Bundschu01) 5/19/26 89.4   3.7 1507 41.3   6.2 0348 36.0   11.2 85   17 8   4 3.4   4.7 20.6   16.2 1402 NNW | 347 0.00 21.64 0.268   0.068 711   26 90   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) 5/19/26 92.2   5.7 1511 41.2   6.6 0621 37.3   11.9 88   18 9   4 2.4   3.4 17.5   13.4 1613 W | 278 0.00 18.49 - - 90   10
Ricci Vineyards (Carneros) 5/19/26 90.2   5.0 1514 41.0   6.1 0606 38.4   12.7 91   10 8   4 4.2   1.9 20.8   8.0 1614 W | 270 0.00 22.95 0.282   0.028 737   18 100   0
Carneros (Ranch 71) 5/19/26 87.6   4.1 1538 54.8   5.2 0625 35.1   13.2 55   21 9   4 3.9   2.8 23.8   7.8 1655 W | 268 0.00 19.86 0.279   0.037 729   23 90   10
Carneros Upper (Ranch 81) 5/19/26 89.3   5.2 1540 57.1   5.8 0634 33.0   13.8 - - 5.4   4.6 25.7   12.4 1744 WSW | 256 - - - - 90   10
Carneros Lower (Ranch 81) 5/19/26 91.1   5.1 1544 43.0   6.4 0531 39.1   12.1 90   23 9   3 1.6   3.8 13.1   15.8 1349 NNE | 30 0.00 19.42 0.211   0.060 610   14 90   10
Rohnert Park-West (Stony Point) 5/19/26 85.6   0.4 1248 41.4   3.9 0454 44.7   8.7 96   6 16   7 3.0   1.7 18.8   3.1 1549 WSW | 253 0.00 11.83 - - 100   20
Cartograph Wines Base 5/19/26 85.0   0.3 1237 50.4   4.6 0025 43.2   8.3 87   26 16   8 4.9   1.2 21.6   4.9 1638 WSW | 242 0.00 28.36 0.256   0.030 704   20 60   60
Cartograph Wines Remote 5/19/26 89.2   2.7 1247 45.6   1.9 0325 - - - - - - - - - - - 60   20
Rice-Spivak Vineyard 5/19/26 88.0   0.0 1233 34.9   2.9 0503 - - - - - - - - - - - 100   20
Penngrove (Asellus) 5/19/26 89.1   5.0 1327 40.4   4.1 0418 41.8   11.7 95   8 10   5 2.6   4.4 15.1   18.1 1555 W | 278 0.00 67.81 - - 90   10
Petaluma (Ranch 10) 5/19/26 90.4   3.3 1403 41.8   4.9 0624 39.1   10.2 88   6 9   4 2.6   1.8 14.3   14.7 1633 WNW | 289 0.00 19.63 0.253   0.029 707   23 80   10
Max   92.2 - 57.1 - 44.7 96 16 5.4 25.7 - - 0.00 67.81 0.293 798 -
Avg   - - - - 37.6 - - 3.2 - - - - - - - -
Min   85.0 - 34.9 - 30.3 47 8 1.6 10.3 - - 0.00 5.84 0.211 610 -