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Northern Sonoma County Yesterday

25 Stations

Daily Data | America/Los_Angeles
as of 5/19/26 1:01 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) RH (%) 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)
Rockpile Upper (Cooley) 5/18/26 81.2   13.0 1548 54.8   14.2 0549 24.3   7.5 22 35   44 7   4 8.7 34.8   3.1 0253 NNW | 345 0.00 42.13 0.305   0.069 756   15 90   20
Rockpile Lower (Cooley) 5/18/26 84.9   12.0 1455 58.6   14.2 0132 23.8   7.2 19 30   44 6   3 4.6 18.3   8.5 1843 WNW | 290 0.00 41.49 - - 80   20
Cloverdale-East (Ranch 83) 5/18/26 87.2   10.9 1557 50.9   0.1 0632 29.4   1.8 - - - 4.1 17.6   12.4 1344 N | 10 0.00 35.00 0.264   0.006 713   10 90   10
Cloverdale-SE (Ranch 38) 5/18/26 86.8   11.7 1603 55.2   5.7 0627 30.9   2.8 27 47   18 7   5 7.5 24.2   11.3 1046 N | 354 0.00 36.51 0.295   0.022 679   28 100   0
Geyserville-North (Hoffman) 5/18/26 92.1   11.4 1717 54.4   3.0 0628 32.2   2.6 27 47   12 7   5 3.9 18.7   6.7 1341 NNE | 16 0.00 25.50 0.250   0.014 637   17 90   10
Geyserville (Ranch 3) 5/18/26 87.5   11.0 1733 54.3   1.7 0612 27.2   4.1 22 45   10 3   5 4.6 15.4   9.6 1048 N | 7 0.00 35.88 0.279   0.009 729   16 90   10
Geyserville-East (Ranch 40) 5/18/26 85.8   10.0 1722 55.1   5.8 0605 30.2   3.3 24 44   22 7   5 5.2 28.3   11.6 0345 E | 80 0.00 36.80 0.278   0.016 719   18 100   0
Geyserville-South (Nervo Station) 5/18/26 87.6   9.3 1531 55.5   3.1 0618 - - - - 4.4 17.5   14.4 2221 WNW | 289 0.00 27.02 - - 90   10
Peterson (Ranch 09) 5/18/26 85.1   9.0 1619 53.6   1.2 0246 24.3   4.6 21 50   3 3   4 4.9 19.3   14.6 1330 N | 353 0.00 33.60 0.276   0.012 690   13 50   10
Crazy Creek Ranch 5/18/26 85.1   9.3 1550 53.4   7.4 0027 30.5   4.3 25 61   23 7   6 4.5 25.5   1.1 0343 N | 354 0.00 37.11 0.275   0.035 724   15 100   0
Whitton Ranch (201e) 5/18/26 86.9   10.2 1737 51.7   0.9 0255 28.3   3.6 24 56   1 5   3 4.0 15.1   11.8 0827 N | 350 0.00 37.97 0.257   0.001 669   15 90   10
Lytton East (Shop Hill Bottom) 5/18/26 86.8   10.0 1700 55.5   5.2 0258 25.6   5.2 20 44   17 4   4 4.7 22.5   6.4 0428 N | 352 0.00 38.76 0.281   0.005 722   13 100   0
Lytton East (Hill 5) 5/18/26 86.3   10.7 1657 57.6   7.8 0312 25.7   5.3 19 42   20 4   4 6.4 21.3   10.4 0430 NW | 325 0.00 38.22 0.289   0.010 649   9 100   0
Lytton West Lower (Lew 6) 5/18/26 87.1   10.0 1753 49.9   0.6 0429 27.4   4.6 24 55   5 4   5 3.8 13.9   11.6 1542 NNW | 334 0.00 38.65 0.244   0.011 634   11 90   10
Lytton West Hill (23PS) 5/18/26 86.8   9.6 1518 52.2   1.3 0624 27.7   4.2 23 55   4 4   4 5.3 15.7   17.4 1523 NE | 38 0.00 40.37 0.282   0.006 684   8 90   10
Big River 5/18/26 85.3   8.8 1550 56.3   5.5 0234 30.0   4.1 23 46   16 7   6 3.1 18.3   10.8 0848 WNW | 295 0.00 35.49 0.257   0.002 757   16 100   0
Jimtown-North (Piccolo Ranch 15) 5/18/26 87.3   10.1 1743 49.8   2.7 0059 27.0   3.9 22 67   4 5   4 4.3 21.3   9.4 1556 ENE | 58 0.00 34.87 0.260   0.008 656   16 100   0
HWY 128/Chalk Hill Rd (Landslide) 5/18/26 87.4   9.0 1516 47.9   3.7 0058 28.2   3.5 26 82   8 5   5 4.3 26.3   2.4 1049 ENE | 69 0.00 34.74 0.254   0.011 629   17 100   0
N Chalk Hill Rd (Ranch 63) 5/18/26 85.6   9.0 1704 47.3   2.6 0059 28.0   3.1 25 85   24 6   4 4.5 22.2   8.0 1015 NE | 52 0.00 35.63 0.264   0.014 649   16 100   0
Newman Knights Valley 5/18/26 83.8   9.0 1736 44.9   5.5 0040 47.4   2.8 47 80   7 34   4 6.5 31.0   1.4 0812 NNE | 17 0.00 35.05 - - 100   0
Knights Valley (Bavarian Lion) 5/18/26 85.2   11.0 1810 43.0   4.2 0056 23.7   5.0 24 89   8 4   6 7.0 26.6   2.0 0736 ENE | 58 0.00 34.74 0.306   0.058 719   17 100   0
Bavarian Lion EFW 5/18/26 86.9   9.7 1509 45.9   5.8 0059 - - - - - - - - 0.00 33.11 - - 100   0
Franz Valley (Stornetta) 5/18/26 86.6   10.9 1619 44.8   3.7 0050 24.5   3.6 - 81   10 3   6 3.3 21.8   6.4 0345 E | 94 0.00 35.29 - - 100   0
Upper Dry Creek Valley 5/18/26 89.1   11.9 1644 44.3   6.6 0555 29.9   2.8 33 80   19 4   4 2.8 13.6   6.5 1832 WNW | 287 0.00 39.08 0.252   0.017 736   15 100   10
Lower Dry Creek Valley 5/18/26 88.5   12.0 1617 48.6   2.5 0334 30.2   2.5 31 66   5 4   3 4.9 16.9   14.0 1134 NNW | 334 0.00 38.16 0.266   0.010 682   19 100   0
Max   92.1 - 58.6 - 47.4 47 89 34 8.7 34.8 - - 0.00 42.13 0.306 757 -
Avg   - - - - 28.5 25 - - 4.9 - - - - - - - -
Min   81.2 - 43.0 - 23.7 19 30 3 2.8 13.6 - - 0.00 25.50 0.244 629 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 5/19/26 1:01 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) RH (%) Daily Max RH (%) Daily Min RH (%) Wind Spd (mph) Daily Max Wind (mph) Time of Max Wind Daily Rain (In) Season Precip (In) Daily ETo (in) Daily Solar Rad (Cal/cm2) Powdery Mildew Stress (pts)
Windsor-NW (Ranch 8) 5/18/26 91.7   12.4 1721 58.8   6.0 0233 33.4   3.1 25 44   16 8   5 3.6 16.2   6.4 0442 0.00 34.10 0.265   0.008 724   19 80
Windsor-East (Ranch 16) 5/18/26 87.1   10.2 1757 48.6   3.6 0119 25.5   5.8 19 65   14 5   6 4.6 19.6   9.6 1156 0.00 27.00 0.279   0.022 729   18 100
Mark West-North (Ranch 14) 5/18/26 84.4   8.7 1622 54.6   3.4 0042 25.5   5.0 21 51   8 5   5 3.4 16.8   11.0 0316 0.00 29.03 0.098   0.004 0   0 60
Windsor-SE (Silk Rd) 5/18/26 85.6   8.2 1617 48.2   4.5 0059 27.4   4.4 23 79   23 4   7 4.4 19.3   6.2 1127 0.00 26.47 0.272   0.017 720   15 100
Fulton-NW (Ranch 5) 5/18/26 85.4   8.7 1724 51.5   0.9 0101 27.5   4.6 22 71   13 6   6 4.9 19.1   9.2 1014 0.00 29.89 0.288   0.016 730   14 100
Bisordi (Fulton) 5/18/26 86.2   8.6 1629 50.4   1.1 0059 33.2   3.0 27 76   12 10   6 4.9 18.8   12.0 1812 0.00 24.35 0.292   0.023 771   16 100
Windsor-South (Laughlin Rd) 5/18/26 87.1   8.3 1802 56.6   5.2 0048 27.6   0.1 22 67   8 4   7 - - - 0.00 28.55 - - 90
Fulton-SE (Barnes Rd) 5/18/26 88.8   9.3 1554 54.3   3.4 0037 33.8   2.8 27 71   4 8   9 2.4 17.0   7.3 0554 0.00 28.57 - - 90
Fulton-SW (Ranch 21) 5/18/26 86.0   8.2 1635 52.6   0.8 0048 26.7   4.9 22 66   7 6   5 5.7 21.6   9.6 0838 0.00 29.17 0.306   0.021 750   18 100
NW Santa Rosa (Piner Road) 5/18/26 86.5   7.2 1526 49.0   1.4 0101 34.5   2.8 31 89   1 9   6 2.2 16.0   8.6 1201 0.00 23.80 - - 100
River Rd South (Denner Ranch) 5/18/26 88.2   9.7 1910 50.2   4.2 0059 28.3   3.9 25 72   13 5   6 6.1 26.7   10.5 0903 - - - - 100
West Santa Rosa (LOV Vineyard) 5/18/26 85.7   8.7 1632 51.2   5.3 0108 27.7   4.3 25 79   5 5   6 5.4 21.0   9.1 0354 0.00 23.02 0.136   0.012 0   9 100
Guerneville Rd (Prokopakis) 5/18/26 88.4   10.5 1927 48.6   2.5 0145 29.7   3.6 28 83   6 5   6 - - - 0.00 28.14 - - 100
SunnyView Vineyard (SCWC) 5/18/26 85.3   8.5 1617 45.3   1.9 0059 28.9   3.5 28 87   0 6   6 3.6 16.2   8.8 1221 0.00 30.69 0.249   0.017 671   8 100
Guerneville Rd West (Balletto) 5/18/26 86.2   8.0 1651 47.2   3.5 0132 32.5   3.4 32 85   8 7   7 5.1 19.3   8.3 0942 0.00 28.22 - - 100
Sanchietti Ranch 5/18/26 87.4   8.4 1626 47.9   3.8 0051 37.1   1.8 - 86   6 10   8 5.1 19.5   9.3 0757 0.00 28.88 - - 100
Occidental Rd (Sebastopol) 5/18/26 85.8   7.8 1645 49.2   6.7 0058 34.0   4.9 35 100   0 9   6 5.2 21.3   12.9 0849 0.00 11.49 - - 100
Harper's Rest (Windsor-West) 5/18/26 86.4   11.3 1849 50.6   1.3 0104 27.7   3.2 - 57   3 5   5 3.1 16.4   4.1 1106 0.00 34.66 - - 100
Lower Westside Rd (Ranch 12) 5/18/26 88.4   8.1 1644 49.5   0.5 0241 29.9   2.7 30 69   1 5   5 1.9 11.4   8.3 1314 0.00 33.35 - - 90
Guerneville (Laughlin Rd) 5/18/26 89.1   10.6 1602 44.7   1.8 0247 30.7   1.2 40 80   8 3   3 2.0 15.6   10.1 1218 0.00 44.34 - - 90
Korbel (Winery) 5/18/26 87.6   9.3 1544 47.8   0.7 0233 29.5   4.5 33 83   1 3   4 2.3 17.5   16.4 1058 0.00 41.51 - - 90
Forestville (Shone Farms) 5/18/26 87.5   8.0 1732 53.4   1.0 0056 26.7   5.2 22 55   1 3   7 4.2 20.4   7.1 1107 0.00 35.56 0.269   0.017 710   19 100
Forestville-NE (Ranch 30) 5/18/26 86.8   9.7 1628 47.1   3.4 0345 34.4   1.4 34 74   7 8   7 3.4 20.8   6.5 0958 0.00 33.46 0.263   0.010 734   18 90
Foggy Bend (Ranch 41) 5/18/26 86.4   7.6 1629 46.7   3.4 0406 40.1   0.3 39 76   4 16   5 4.5 24.3   4.7 0914 0.00 34.76 0.274   0.016 735   17 100
Last Stop 5/18/26 85.2   7.6 1708 47.4   5.9 0056 34.6   2.1 33 82   14 7   7 2.7 19.4   2.3 1422 0.00 33.76 0.241   0.017 726   14 100
Green Valley Vineyard 5/18/26 84.9   8.2 1646 52.9   7.4 0059 27.7   4.8 23 57   21 5   4 3.2 19.1   4.6 0758 0.00 41.26 0.085   0.016 0   0 100
Park Royal 5/18/26 86.1   8.4 1626 49.0   5.1 0054 25.3   5.2 23 78   6 5   5 - - - 0.00 16.67 - - 100
Merino 5/18/26 85.7   8.5 1647 45.7   4.7 0059 34.3   2.2 32 94   5 9   7 3.5 16.1   10.3 0917 0.00 29.67 0.262   0.021 746   16 100
Green Valley (Sanchietti) 5/18/26 87.6   8.7 1600 42.2   1.2 0242 - - - - - - - - - - - 90
Keefer Ranch (Green Valley) 5/18/26 85.2   7.7 1620 43.2   2.4 0229 37.6   1.8 41 90   8 10   6 - - - 0.00 36.76 - - 100
Graton-West (Dutton Ranch) 5/18/26 86.4   8.0 1636 44.4   2.1 0248 33.7   3.0 39 100   0 6   5 3.8 16.9   8.9 0804 0.00 44.85 - - 100
Graton-South (Mill Station Rd) 5/18/26 86.3   9.3 1648 41.3   0.5 0254 30.5   4.1 36 91   5 5   6 2.0 12.9   3.5 1016 0.00 34.06 - - 100
Occidental (Horseshoe Bend) 5/18/26 83.3   8.1 1642 55.3   6.3 0059 27.9   4.6 - 51   21 6   4 - - - 0.00 37.05 - - 50
Sexton Valley (Jacqueline's Blk) 5/18/26 85.8   9.6 1758 40.9   1.1 0306 37.6   1.9 43 94   4 10   7 3.4 17.7   3.9 0907 0.00 22.49 - - 100
Sebastopol Hills (Burnside Rd) 5/18/26 84.1   9.1 1735 58.4   9.1 0102 32.1   3.8 25 42   29 10   7 4.2 18.6   6.8 0942 0.00 33.45 - - 0
Pleasant Hill 5/18/26 84.2   8.3 1644 49.3   8.5 0032 29.0   4.1 - 59   36 6   6 4.5 15.8   9.1 0650 0.00 31.56 - - 100
Seaview/Fort Ross (Hirsch) 5/18/26 80.3   12.5 1501 54.5   8.6 0102 27.1   9.6 23 46   24 10   21 5.4 18.4   8.8 0218 0.00 53.61 0.271   0.055 748   19 20
Max   91.7 - 58.8 - 40.1 43 100 16 6.1 26.7 - 0.00 53.61 0.306 771 -
Avg   - - - - 30.8 29 - - 3.9 - - - - - - -
Min   80.3 - 40.9 - 25.3 19 42 3 1.9 11.4 - 0.00 11.49 0.085 0 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 5/19/26 1:01 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 5/18/26 82.4   10.7 1712 55.9   10.7 0041 22.9   6.1 41   34 4   7 3.2   0.2 15.6   8.1 1124 WSW | 238 0.00 5.84 0.227   0.039 640   61 60   10
Lower Bennett Valley 5/18/26 84.1   9.9 1713 42.4   0.5 0045 28.4   4.6 90   2 5   7 5.5   0.9 28.9   3.2 0430 NW | 316 0.00 27.61 0.283   0.026 704   17 100   0
Kenwood (Wildwood) 5/18/26 83.5   8.9 1634 50.9   9.0 2313 25.6   6.7 63   28 5   8 5.0   0.5 28.6   2.5 0822 NNE | 18 0.00 31.95 0.272   0.038 697   13 100   0
Sonoma Valley (Bedrock) 5/18/26 84.2   10.1 1652 54.4   5.4 0059 21.8   7.9 44   20 4   6 - - - - 0.00 27.98 - - 100   0
Sonoma-West (Arnold) 5/18/26 86.8   10.0 1645 47.4   3.7 0055 24.5   6.8 74   11 4   6 5.2   0.2 22.3   6.9 0750 W | 278 0.00 17.88 0.321   0.035 817   21 100   0
Sonoma Valley HS 5/18/26 85.7   9.3 1702 50.9   3.9 0052 30.2   5.3 70   13 8   7 4.9   0.0 22.2   4.5 0920 NNE | 33 0.00 6.62 0.292   0.034 745   20 100   10
Sonoma East (Bundschu01) 5/18/26 85.7   8.5 1711 47.5   6.5 0101 24.8   8.1 68   24 5   6 8.1   2.3 36.8   2.2 0805 NE | 43 0.00 21.64 0.336   0.063 737   14 100   0
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) 5/18/26 86.5   9.5 1530 47.8   5.9 0057 25.4   7.3 70   21 5   6 5.9   1.6 30.9   6.4 0730 NNE | 18 0.00 18.49 - - 100   0
Ricci Vineyards (Carneros) 5/18/26 85.2   8.3 1620 47.1   1.4 0059 25.6   6.8 81   1 5   6 6.1   0.2 28.8   2.3 0644 NW | 319 0.00 22.95 0.310   0.040 755   20 100   0
Carneros (Ranch 71) 5/18/26 83.5   8.8 1641 60.0   13.0 0055 21.9   8.9 34   44 5   6 6.7   1.3 31.6   4.7 0801 NE | 34 0.00 19.86 0.316   0.054 752   22 100   20
Carneros Upper (Ranch 81) 5/18/26 84.1   9.5 1739 62.9   15.5 0052 19.2   10.1 - - 10.0   2.0 38.1   3.2 0723 NNE | 28 - - - - 100   20
Carneros Lower (Ranch 81) 5/18/26 86.0   10.4 1740 49.4   4.9 0051 27.0   5.9 68   24 6   6 5.4   1.4 28.9   2.9 0928 NE | 38 0.00 19.42 0.271   0.037 623   14 100   0
Rohnert Park-West (Stony Point) 5/18/26 85.2   8.5 1818 45.2   5.0 0101 36.1   1.5 90   6 9   8 4.7   0.2 21.9   7.4 0705 N | 11 0.00 11.83 - - 80   20
Cartograph Wines Base 5/18/26 85.3   8.8 1629 55.0   9.8 0059 34.9   2.4 61   26 8   9 6.1   0.1 26.4   6.7 1122 N | 354 0.00 28.36 0.286   0.035 724   17 0   0
Cartograph Wines Remote 5/18/26 86.5   8.5 1712 47.6   5.6 0059 - - - - - - - - - - - 40   20
Rice-Spivak Vineyard 5/18/26 88.0   9.6 1731 37.8   4.6 0037 - - - - - - - - - - - 80   20
Penngrove (Asellus) 5/18/26 84.1   8.0 1706 44.5   1.2 0059 30.1   3.5 88   0 4   7 6.9   0.1 33.2   3.5 0915 N | 354 3.76 67.81 - - 100   20
Petaluma (Ranch 10) 5/18/26 87.1   8.6 1515 46.6   1.2 0052 28.9   4.5 83   7 5   5 4.4   1.7 29.0   4.4 0845 NNE | 25 0.00 19.63 0.282   0.021 730   18 90   10
Max   88.0 - 62.9 - 36.1 90 9 10.0 38.1 - - 3.76 67.81 0.336 817 -
Avg   - - - - 26.7 - - 5.9 - - - - - - - -
Min   82.4 - 37.8 - 19.2 34 4 3.2 15.6 - - 0.00 5.84 0.227 623 -