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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 5/31/26 9:21 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) 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) 5/30/26 75.9   4.0 1405 44.0   2.4 0556 42.6   4.6 67   3 100   3 11   32 8.3   2.5 27.6   5.5 1741 NNW | 340 0.00 42.48 0.226   0.054 751   178 20   10
Rockpile Lower (Cooley) 5/30/26 79.1   5.1 1506 46.8   3.6 0515 42.8   5.4 61   4 98   4 7   33 4.6   1.2 22.6   8.2 1735 W | 274 0.00 41.80 - - 20   10
Cloverdale-East (Ranch 83) 5/30/26 83.1   5.8 1632 48.9   3.6 0554 46.7   5.5 - - - 2.6   0.4 15.3   0.3 0924 NW | 318 0.00 35.51 0.218   0.025 696   65 100   0
Cloverdale-SE (Ranch 38) 5/30/26 82.8   6.8 1543 48.8   2.7 0626 48.0   3.0 63   6 98   2 20   25 4.9   1.4 16.3   4.0 1634 SW | 226 0.00 37.12 0.216   0.012 666   16 40   20
Geyserville-North (Hoffman) 5/30/26 81.2   4.6 1522 52.2   1.6 0610 50.6   2.4 63   8 92   2 32   16 3.1   0.1 13.4   1.5 1619 S | 176 0.00 25.50 0.196   0.013 593   9 90   20
Geyserville (Ranch 3) 5/30/26 81.1   5.5 1649 52.7   0.7 0611 49.1   2.9 60   9 96   1 26   20 3.2   0.1 13.3   1.0 1628 ESE | 113 0.00 36.33 0.223   0.027 699   53 100   0
Geyserville-East (Ranch 40) 5/30/26 78.9   4.2 1533 50.4   0.6 0522 49.7   1.5 68   4 99   1 34   14 4.1   1.5 19.0   2.8 1639 SSW | 202 0.00 37.19 0.211   0.018 666   16 20   20
Geyserville-South (Nervo Station) 5/30/26 79.8   4.6 1545 52.0   0.7 0606 - - - - 3.5   0.1 19.9   5.7 2228 WNW | 303 0.00 27.24 - - 40   20
Peterson (Ranch 09) 5/30/26 79.0   4.8 1610 52.7   0.2 0639 47.8   2.7 60   8 90   1 27   17 3.5   0.1 15.2   1.0 2207 NW | 326 0.00 34.02 0.204   0.009 648   5 50   20
Crazy Creek Ranch 5/30/26 80.1   5.9 1552 50.7   3.0 0059 51.2   1.9 68   4 93   2 34   18 2.6   0.0 12.1   5.7 1719 SSE | 161 0.00 37.50 0.201   0.024 655   54 40   20
Whitton Ranch (201e) 5/30/26 81.3   5.1 1537 52.7   0.1 0611 49.4   2.2 61   7 94   0 29   16 3.0   0.0 13.9   1.9 2212 NW | 315 0.00 38.45 0.202   0.011 627   1 90   20
Lytton East (Shop Hill Bottom) 5/30/26 78.6   4.7 1552 52.3   0.4 0230 48.3   2.5 61   8 94   2 24   21 3.4   0.4 12.6   2.9 1547 SW | 214 0.00 39.27 0.218   0.021 693   34 40   20
Lytton East (Hill 5) 5/30/26 79.1   5.4 1522 52.0   0.4 0151 48.1   2.2 61   7 95   2 25   20 5.1   0.2 19.2   0.3 2206 NW | 304 0.00 38.71 0.215   0.027 632   32 20   20
Lytton West Lower (Lew 6) 5/30/26 78.6   4.6 1505 52.4   0.6 0235 48.4   2.9 61   9 94   3 23   23 3.4   0.1 13.2   0.8 1347 SSE | 154 0.00 39.17 0.203   0.026 624   51 40   20
Lytton West Hill (23PS) 5/30/26 78.5   4.6 1637 52.5   0.7 0219 48.4   2.8 60   8 96   3 24   21 3.6   0.3 13.1   1.8 1622 S | 182 0.00 40.91 0.212   0.021 648   23 40   20
Big River 5/30/26 78.1   5.2 1529 52.3   0.3 0233 50.3   1.8 66   7 98   2 32   22 2.8   0.7 15.2   1.8 1640 S | 177 0.00 35.87 0.217   0.011 718   15 20   20
Jimtown-North (Piccolo Ranch 15) 5/30/26 80.6   5.8 1615 51.6   1.2 0059 48.2   2.1 61   5 96   9 27   18 2.1   0.2 17.6   3.7 1647 SSW | 192 0.00 35.25 0.181   0.020 585   42 40   20
HWY 128/Chalk Hill Rd (Landslide) 5/30/26 80.1   5.6 1553 50.0   3.2 0059 50.2   2.2 66   6 94   0 30   17 2.4   0.6 12.6   1.5 1651 SSW | 194 0.00 35.17 0.184   0.006 581   11 40   20
N Chalk Hill Rd (Ranch 63) 5/30/26 78.1   5.0 1536 49.2   3.1 0101 49.0   2.3 65   5 92   1 31   17 2.6   0.5 13.1   1.4 1720 S | 179 0.00 35.99 0.194   0.012 603   0 70   20
Newman Knights Valley 5/30/26 77.6   4.7 1555 48.1   4.5 0101 52.5   0.8 73   2 87   0 52   10 2.5   1.0 14.1   0.7 1655 SW | 228 0.00 35.40 - - 20   20
Knights Valley (Bavarian Lion) 5/30/26 78.0   4.3 1600 50.1   0.0 0059 49.6   1.4 69   2 96   0 32   14 2.2   0.6 12.3   0.4 1651 WNW | 282 0.00 35.08 0.181   0.005 592   23 0   0
Red Tail 5/30/26 77.1   5.5 1549 50.3   2.1 0057 51.2   1.3 71   4 92   2 37   19 3.2   0.6 14.2   3.7 1305 SW | 222 0.00 36.23 0.195   0.009 636   33 20   20
Franz Valley (Stornetta) 5/30/26 77.5   5.4 1552 47.8   3.3 0059 49.7   1.5 - 96   1 30   17 1.7   0.4 9.7   2.8 1322 W | 280 0.00 35.65 - - 20   10
Upper Dry Creek Valley 5/30/26 83.0   5.2 1538 50.7   2.4 0626 48.1   4.0 57   13 93   0 23   16 3.2   0.1 15.3   2.3 1852 NW | 317 0.00 39.64 0.232   0.043 708   102 70   20
Lower Dry Creek Valley 5/30/26 79.3   5.5 1558 53.0   0.4 0325 48.6   2.9 60   9 100   7 23   20 3.4   0.3 14.5   0.8 1846 NNW | 340 0.00 38.68 0.217   0.027 671   54 40   20
Max   83.1 - 53.0 - 52.5 73 100 52 8.3 27.6 - - 0.00 42.48 0.232 751 -
Avg   - - - - 48.7 64 - - 3.4 - - - - - - - -
Min   75.9 - 44.0 - 42.6 57 87 7 1.7 9.7 - - 0.00 25.50 0.181 581 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 5/31/26 9:21 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) 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) 5/30/26 80.1   6.0 1719 52.4   0.0 0128 51.7   1.0 68 84   1 33   21 0.0 0.0   0.0 0101 0.00 34.62 0.192   0.005 680   4 40
Windsor-East (Ranch 16) 5/30/26 76.8   6.2 1506 49.3   2.9 0054 50.4   1.4 71 95   1 27   25 2.8 11.9   1.5 1606 0.00 27.43 0.209   0.022 693   25 20
Mark West-North (Ranch 14) 5/30/26 76.0   5.9 1513 50.8   1.7 0059 49.8   1.6 68 94   1 27   22 1.9 10.9   2.4 1501 0.00 29.47 0.029   0.002 0   0 60
Windsor-SE (Silk Rd) 5/30/26 77.9   6.2 1734 48.7   4.0 0101 50.8   1.7 71 94   3 30   21 1.9 15.1   2.1 1426 0.00 27.03 0.195   0.009 661   7 20
Fulton-NW (Ranch 5) 5/30/26 75.9   6.2 1619 50.4   1.9 0058 50.6   1.6 72 95   1 28   27 3.4 15.8   0.0 1222 0.00 30.39 0.209   0.022 685   6 0
Bisordi (Fulton) 5/30/26 76.4   5.8 1626 49.0   3.8 0059 52.0   1.5 74 93   0 33   28 2.3 12.1   1.8 1504 0.00 24.77 0.199   0.010 692   17 30
Windsor-South (Laughlin Rd) 5/30/26 79.1   6.2 1707 51.7   0.6 0055 50.2   1.6 68 92   1 28   22 - - - 0.00 28.91 - - 20
Fulton-SE (Barnes Rd) 5/30/26 76.0   6.2 1652 50.6   2.0 0059 50.6   1.3 70 93   1 33   24 2.5 13.1   2.3 1528 0.00 29.04 - - 0
Fulton-SW (Ranch 21) 5/30/26 75.7   5.8 1520 49.7   2.4 0055 50.2   1.7 71 93   1 28   28 2.9 16.4   1.6 1443 0.00 29.63 0.204   0.011 675   32 10
NW Santa Rosa (Piner Road) 5/30/26 75.9   6.2 1600 49.4   2.7 0059 53.3   1.7 80 100   0 33   30 1.9 9.8   2.8 1520 0.00 23.80 - - 10
River Rd South (Denner Ranch) 5/30/26 77.3   7.0 1620 49.0   2.9 0059 2.3   2.8 34 100   0 0   0 3.6 15.6   2.2 1519 - - - - 20
West Santa Rosa (LOV Vineyard) 5/30/26 76.5   5.5 1612 49.4   2.8 0059 50.6   1.6 73 95   0 27   27 1.9 11.4   1.7 1524 0.00 23.43 0.029   0.004 0   0 10
Guerneville Rd (Prokopakis) 5/30/26 82.1   6.8 1818 50.1   2.7 0101 51.7   1.4 71 95   0 28   19 - - - 0.00 28.59 - - 70
SunnyView Vineyard (SCWC) 5/30/26 75.6   5.8 1635 48.1   3.9 0057 49.8   1.8 72 94   2 27   24 1.8 11.6   0.2 1440 0.00 31.16 0.172   0.003 587   57 20
Guerneville Rd West (Balletto) 5/30/26 76.0   5.9 1603 49.2   3.3 0056 52.2   1.5 76 96   1 33   27 2.5 12.4   0.5 1845 0.00 28.72 - - 10
Sanchietti Ranch 5/30/26 76.7   6.6 1630 48.7   4.6 0059 52.7   1.7 - 94   0 34   30 3.0 15.0   1.2 1454 0.00 29.34 - - 0
Occidental Rd (Sebastopol) 5/30/26 76.2   4.9 1610 48.1   4.3 0059 55.6   2.0 88 100   0 37   32 2.2 14.5   0.2 1622 0.00 11.89 - - 10
Harper's Rest (Windsor-West) 5/30/26 79.6   5.1 1622 47.7   3.5 0059 49.9   1.5 - 95   0 22   22 1.9 10.3   0.1 1732 0.00 35.13 - - 20
Lower Westside Rd (Ranch 12) 5/30/26 78.5   6.1 1623 49.7   2.6 0053 49.9   2.0 69 95   1 20   27 2.3 11.8   2.2 1527 0.00 33.79 - - 20
Guerneville (Laughlin Rd) 5/30/26 76.7   5.3 1330 48.3   3.4 0059 50.3   1.2 72 95   0 30   20 2.1 15.1   1.3 1440 0.00 44.81 - - 20
Korbel (Winery) 5/30/26 76.8   6.0 1349 50.4   2.6 0059 50.1   1.7 71 94   0 26   24 0.8 13.9   0.0 1453 0.00 42.00 - - 30
Forestville (Shone Farms) 5/30/26 79.5   5.1 1641 51.2   0.5 0019 50.7   1.6 70 96   2 22   27 2.1 11.8   0.9 1435 0.00 36.08 0.195   0.009 654   7 20
Forestville-NE (Ranch 30) 5/30/26 78.4   6.6 1611 49.4   2.6 0044 51.7   1.6 74 97   1 28   26 2.6 13.4   1.8 1459 0.00 33.95 0.205   0.025 690   43 60
Foggy Bend (Ranch 41) 5/30/26 77.2   4.3 1523 50.7   2.4 0048 52.7   0.9 74 94   0 33   24 2.6 13.2   1.5 1418 0.00 35.26 0.201   0.015 696   21 20
Last Stop 5/30/26 78.9   4.5 1451 46.8   5.4 0047 51.3   1.6 74 96   0 31   22 2.1 11.8   0.7 1517 0.00 34.24 0.191   0.004 656   39 20
Green Valley Vineyard 5/30/26 76.8   5.4 1442 48.5   2.9 0059 49.9   1.6 73 98   2 18   31 2.1 14.5   1.8 1522 0.00 41.77 0.041   0.015 49   49 30
Park Royal 5/30/26 75.8   6.1 1638 49.1   3.0 0057 49.3   2.2 70 94   1 24   29 - - - 0.00 17.10 - - 10
Merino 5/30/26 77.5   6.4 1640 45.2   7.0 0059 52.1   1.7 78 98   2 34   25 2.4 13.3   0.2 1517 0.00 30.08 0.190   0.007 648   33 10
Green Valley (Sanchietti) 5/30/26 79.3   5.2 1508 49.0   4.0 2359 - - - - - - - - - - - 20
Keefer Ranch (Green Valley) 5/30/26 76.8   5.4 1523 48.2   3.4 0056 51.4   1.2 75 96   0 30   23 - - - 0.00 37.19 - - 40
Graton-West (Dutton Ranch) 5/30/26 77.6   5.1 1501 48.3   4.0 0053 53.8   2.7 82 100   0 27   26 2.0 10.4   1.1 1522 0.00 45.44 - - 40
Graton-South (Mill Station Rd) 5/30/26 74.0   4.8 1741 49.2   2.9 0057 50.7   1.3 75 97   1 31   25 0.9 8.5   0.6 1504 0.00 34.59 - - 10
Occidental (Horseshoe Bend) 5/30/26 73.1   5.2 1442 49.6   0.1 0034 50.0   0.7 - 100   0 31   24 - - - 0.00 37.58 - - 10
Sexton Valley (Jacqueline's Blk) 5/30/26 73.9   4.7 1622 47.8   3.3 0059 52.2   0.8 79 98   1 39   21 1.5 11.3   1.1 1520 0.00 23.05 - - 10
Sebastopol Hills (Burnside Rd) 5/30/26 71.4   5.7 1638 50.4   0.2 0354 51.5   0.5 81 100   0 39   28 2.3 13.3   0.0 1511 0.00 33.82 - - 0
Pleasant Hill 5/30/26 75.2   4.1 1430 47.7   3.5 0059 50.4   0.9 - 97   2 33   19 2.2 13.2   1.1 1447 0.00 31.82 - - 20
Seaview/Fort Ross (Hirsch) 5/30/26 69.6   5.0 1657 46.3   0.0 0603 45.9   2.6 69 97   0 36   25 3.8 11.6   1.2 2119 0.00 53.98 0.201   0.031 758   66 0
Max   82.1 - 52.4 - 55.6 88 100 39 3.8 16.4 - 0.00 53.98 0.209 758 -
Avg   - - - - 49.7 72 - - 2.2 - - - - - - -
Min   69.6 - 45.2 - 2.3 34 84 0 0.0 0.0 - 0.00 11.89 0.029 0 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 5/31/26 9:21 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 5/30/26 72.4   5.7 1523 49.1   0.2 0344 48.6   1.1 98   1 34   21 2.0   0.2 10.3   0.7 1416 S | 172 0.01 6.09 0.141   0.009 479   3 20   10
Lower Bennett Valley 5/30/26 72.3   5.3 1549 44.3   5.7 0054 50.7   1.4 100   0 42   16 2.9   1.4 14.0   1.0 1458 SW | 215 0.00 28.00 0.175   0.015 616   5 0   10
Kenwood (Wildwood) 5/30/26 76.1   5.0 1348 50.2   0.1 0308 49.9   1.9 100   3 29   22 2.4   0.2 15.1   0.1 1705 NNW | 341 0.00 32.85 0.178   0.016 602   13 0   0
Sonoma Valley (Bedrock) 5/30/26 77.2   6.2 1619 48.5   1.7 0046 48.0   2.4 95   1 26   24 - - - - 0.00 28.95 - - 20   20
Sonoma-West (Arnold) 5/30/26 77.1   5.6 1411 45.8   3.5 0059 49.0   2.2 93   1 28   22 2.8   0.7 16.8   1.5 1601 SW | 232 0.00 18.30 0.212   0.020 696   23 40   20
Sonoma Valley HS 5/30/26 76.2   5.6 1424 49.8   1.2 0058 51.4   1.8 97   1 40   18 2.5   0.3 14.4   3.5 1655 WSW | 246 0.00 6.91 0.178   0.032 610   80 20   20
Sonoma East (Bundschu01) 5/30/26 77.0   5.5 1448 50.6   0.0 2357 48.9   2.2 93   0 33   16 3.2   0.5 16.2   0.4 1737 WSW | 242 0.00 21.65 0.190   0.036 623   92 40   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) 5/30/26 78.0   7.6 1426 51.2   0.2 0058 49.2   2.1 93   0 34   18 2.7   0.6 14.5   1.0 1656 WSW | 252 0.00 18.67 - - 20   20
Ricci Vineyards (Carneros) 5/30/26 77.6   7.4 1530 48.0   3.2 0059 49.2   1.9 94   0 35   16 4.2   1.3 16.8   1.0 1505 S | 184 0.00 23.15 0.195   0.026 627   41 20   10
Carneros (Ranch 71) 5/30/26 76.1   7.2 1530 51.2   0.7 0612 49.1   1.8 96   0 36   19 4.4   0.8 22.5   4.6 1744 W | 260 0.00 19.98 0.189   0.036 617   72 10   10
Carneros Upper (Ranch 81) 5/30/26 75.9   6.6 1545 50.8   0.3 0102 38.0   2.3 - - 5.7   2.2 21.8   2.8 1806 W | 273 - - - - 10   10
Carneros Lower (Ranch 81) 5/30/26 79.8   10.3 1700 48.8   2.5 0058 50.6   1.8 94   0 33   23 1.2   0.4 12.6   3.9 1303 SSE | 165 0.00 19.55 0.158   0.016 541   40 10   10
Rohnert Park-West (Stony Point) 5/30/26 70.5   3.8 1431 46.1   5.9 0101 51.4   1.6 97   2 46   20 2.2   1.8 14.8   1.2 1444 SW | 228 0.00 12.31 - - 0   10
Cartograph Wines Base 5/30/26 69.0   4.6 1426 50.1   0.8 0426 51.5   1.0 99   2 54   19 4.0   2.5 20.3   0.7 1644 SSW | 195 0.01 28.86 0.159   0.012 608   52 0   0
Cartograph Wines Remote 5/30/26 71.2   4.6 1633 47.4   4.2 0059 - - - - - - - - - - - 0   0
Rice-Spivak Vineyard 5/30/26 72.2   2.7 1636 40.3   7.5 0053 - - - - - - - - - - - 0   10
Penngrove (Asellus) 5/30/26 72.4   5.9 1318 44.8   6.4 0052 49.2   2.2 95   0 40   18 2.6   0.5 12.8   0.0 1633 SW | 236 0.00 68.31 - - 10   10
Petaluma (Ranch 10) 5/30/26 75.5   5.6 1444 46.3   6.0 0053 49.0   2.2 92   0 38   15 2.6   1.0 13.7   1.8 1657 W | 263 0.00 19.96 0.173   0.037 576   111 0   0
Max   79.8 - 51.2 - 51.5 100 54 5.7 22.5 - - 0.01 68.31 0.212 696 -
Avg   - - - - 49.0 - - 3.0 - - - - - - - -
Min   69.0 - 40.3 - 38.0 92 26 1.2 10.3 - - 0.00 6.09 0.141 479 -