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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 8/28/26 6:38 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) 8/27/26 93.3   3.9 1546 60.2   3.1 0609 47.1   1.9 46   0 74   0 15   2 9.3   0.6 26.7   6.8 0355 NNW | 330 0.00 0.05 0.249   0.030 602   46 0   0
Rockpile Lower (Cooley) 8/27/26 97.0   5.4 1508 63.1   7.8 0550 47.9   1.8 42   3 72   4 14   6 4.2   1.0 19.6   3.6 1654 W | 278 0.00 0.02 - - 0   0
Cloverdale-East (Ranch 83) 8/27/26 101.9   3.2 1548 61.3   16.5 0326 50.4   4.3 - - - 2.8   0.4 13.4   5.5 1642 W | 277 0.00 0.00 0.215   0.020 562   47 0   0
Cloverdale-SE (Ranch 38) 8/27/26 100.2   1.1 1636 65.8   13.7 0646 51.6   3.2 44   4 67   17 17   6 5.5   0.1 19.4   7.5 1616 NW | 323 0.00 0.01 0.230   0.015 516   48 0   0
Geyserville-North (Hoffman) 8/27/26 102.4   2.7 1512 59.1   14.7 0057 53.8   2.3 49   6 85   10 18   1 3.0   0.2 16.7   1.1 1642 ESE | 121 0.00 0.00 0.209   0.003 522   48 0   0
Geyserville (Ranch 3) 8/27/26 99.8   1.9 1458 58.9   12.3 0642 50.7   1.7 45   7 82   17 13   2 3.4   0.2 17.1   3.3 1612 ESE | 104 0.00 0.00 0.222   0.002 530   43 10   10
Geyserville-East (Ranch 40) 8/27/26 99.3   4.3 1502 63.0   12.4 0647 53.0   0.9 48   8 74   22 18   2 5.1   0.2 21.9   3.6 1606 SSW | 203 0.00 0.00 0.243   0.006 545   32 0   0
Geyserville-South (Nervo Station) 8/27/26 99.2   3.1 1323 59.9   11.9 0642 - - - - 2.9   1.1 15.2   5.7 1628 SE | 131 0.00 0.00 - - 0   0
Peterson (Ranch 09) 8/27/26 96.7   2.0 1454 55.6   10.1 0647 50.9   2.5 52   2 87   9 13   3 2.8   0.5 13.6   5.1 1706 SW | 221 0.00 0.00 0.204   0.010 524   46 0   0
Crazy Creek Ranch 8/27/26 98.2   1.7 1500 55.2   10.0 0654 53.2   1.8 54   5 88   10 19   0 2.3   0.0 13.8   3.6 1513 SSW | 193 0.00 0.00 0.211   0.006 553   64 0   0
Whitton Ranch (201e) 8/27/26 99.5   1.8 1450 51.0   12.5 0650 51.5   2.5 54   2 96   4 14   2 2.3   0.8 14.3   5.1 1635 SE | 142 0.00 0.03 0.202   0.012 517   39 0   0
Lytton East (Shop Hill Bottom) 8/27/26 99.1   4.4 1439 57.2   12.0 0647 50.7   1.1 50   7 86   14 12   3 3.2   0.4 16.8   2.6 1628 S | 178 0.00 0.00 0.235   0.004 593   24 10   10
Lytton East (Hill 5) 8/27/26 98.4   3.5 1433 58.8   11.1 0651 51.2   0.6 49   7 83   15 13   3 5.2   0.8 22.4   1.2 1821 S | 185 0.00 0.00 0.244   0.002 527   27 30   10
Lytton West Lower (Lew 6) 8/27/26 98.2   3.0 1436 54.8   10.9 0639 51.1   1.2 52   4 90   9 12   3 3.2   0.5 19.1   5.3 1825 SE | 140 0.00 0.01 0.238   0.002 598   28 10   10
Lytton West Hill (23PS) 8/27/26 97.7   3.5 1651 57.6   10.1 0652 51.8   1.0 51   6 87   13 12   5 3.3   0.9 18.9   4.3 1819 S | 173 0.00 0.01 0.237   0.005 603   28 60   10
Big River 8/27/26 96.4   3.1 1416 56.5   7.6 0644 54.3   1.9 55   4 90   10 19   6 2.6   0.1 20.1   6.6 1805 SSE | 165 0.00 0.00 0.220   0.003 584   57 40   10
Jimtown-North (Piccolo Ranch 15) 8/27/26 97.8   1.3 1502 53.8   9.8 0651 49.0   1.8 48   5 82   18 13   1 1.7   0.1 13.6   0.0 1623 SSW | 207 0.00 0.00 0.177   0.008 478   67 0   0
HWY 128/Chalk Hill Rd (Landslide) 8/27/26 97.7   1.6 1424 53.1   9.8 0653 52.0   3.3 54   2 89   6 22   5 2.2   0.6 14.3   2.4 1609 SSW | 201 0.00 0.00 0.194   0.007 491   38 0   0
N Chalk Hill Rd (Ranch 63) 8/27/26 96.6   2.6 1400 51.2   9.8 0627 51.2   3.5 54   0 90   6 19   3 2.3   0.5 15.4   3.6 1441 S | 187 0.00 0.00 0.199   0.008 510   26 0   0
Newman Knights Valley 8/16/26 87.7   7.5 1555 53.8   0.1 0712 56.9   1.1 71   5 89   2 46   12 3.1   0.4 13.6   1.9 1647 SW | 220 0.00 0.00 - - 60   10
Knights Valley (Bavarian Lion) 8/27/26 98.3   2.9 1443 49.1   9.6 0659 49.0   3.9 53   0 94   3 16   5 2.3   0.2 17.6   4.6 1610 WSW | 239 0.00 0.00 0.215   0.002 573   32 0   0
Red Tail 8/27/26 95.6   0.1 1427 55.4   11.8 0646 54.4   4.0 57   3 87   8 27   5 3.1   0.6 18.6   3.8 1816 ESE | 118 0.00 0.01 0.212   0.003 559   50 40   10
Franz Valley (Stornetta) 8/27/26 96.5   0.2 1352 50.2   9.6 0642 49.2   4.3 - 90   2 16   5 1.7   0.0 13.7   2.2 1612 W | 272 0.00 0.00 - - 0   0
Upper Dry Creek Valley 8/27/26 98.4   0.1 1520 58.4   13.4 0033 51.4   1.9 47   6 83   13 14   2 3.1   0.3 13.6   2.1 1705 WSW | 258 0.00 0.00 0.223   0.014 574   49 0   0
Lower Dry Creek Valley 8/27/26 98.6   4.8 1640 55.5   10.8 0640 51.9   2.0 54   2 94   6 12   1 2.8   1.1 17.4   1.9 1817 N | 354 0.00 0.01 0.224   0.003 560   31 40   10
Max   102.4 - 65.8 - 54.4 57 96 27 9.3 26.7 - - 0.00 0.05 0.249 603 -
Avg   - - - - 51.2 50 - - 3.4 - - - - - - - -
Min   93.3 - 49.1 - 47.1 42 67 12 1.7 13.4 - - 0.00 0.00 0.177 478 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 8/28/26 6:38 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) 8/27/26 99.2   3.0 1520 55.8   5.9 0652 55.3   1.9 61 82   7 20   6 0.2 13.2   10.7 1805 0.00 0.02 0.177   0.002 570   22 0
Windsor-East (Ranch 16) 8/27/26 93.8   1.2 1408 52.2   7.0 0621 52.7   2.8 60 92   8 25   4 3.1 17.2   3.9 1812 0.00 0.00 0.222   0.005 568   34 80
Mark West-North (Ranch 14) 7/27/26 86.2   2.9 1404 47.0   1.0 0543 51.1   1.0 62 96   0 32   5 1.8 12.7   0.3 1723 0.00 0.01 0.038   0.002 0   0 60
Windsor-SE (Silk Rd) 8/27/26 95.2   2.9 1527 50.4   3.9 0639 53.3   1.6 64 98   2 17   5 1.9 16.1   5.5 1834 0.00 0.02 0.201   0.007 566   23 70
Fulton-NW (Ranch 5) 8/27/26 92.0   1.3 1327 52.2   3.6 0643 53.5   20.5 62 90   10 30   27 3.4 18.5   5.0 1919 0.00 0.00 0.221   0.006 568   40 80
Bisordi (Fulton) 8/27/26 92.1   0.9 1451 51.0   4.4 0643 55.1   1.7 66 93   4 35   7 1.8 13.8   1.5 1817 0.00 0.00 0.205   0.001 604   25 80
Windsor-South (Laughlin Rd) 8/27/26 95.5   2.2 1452 54.0   4.1 0714 53.8   9.8 62 91   9 18   18 - - - 0.00 0.00 - - 60
Fulton-SE (Barnes Rd) 8/27/26 91.7   0.8 1346 54.2   3.1 0627 54.3   1.4 62 90   6 30   6 1.1 17.7   8.8 1759 0.00 0.00 - - 80
Fulton-SW (Ranch 21) 8/27/26 91.3   1.2 1320 52.5   1.9 0636 53.8   37.5 64 92   8 31   30 2.9 18.4   5.8 1807 0.00 0.00 0.217   0.001 605   29 80
NW Santa Rosa (Piner Road) 8/27/26 91.3   0.1 1433 50.9   0.1 0642 57.2   2.1 74 100   0 36   11 1.9 13.8   4.2 1812 0.00 0.00 - - 80
River Rd South (Denner Ranch) 8/27/26 92.7   3.8 1621 50.9   2.2 0639 18.5   16.8 39 100   0 0   0 4.2 21.7   5.9 1759 - - - - 90
West Santa Rosa (LOV Vineyard) 8/25/26 85.6   5.6 1427 51.5   1.4 0051 53.4   2.0 73 96   2 24   16 1.5 11.9   1.3 1443 0.00 0.00 0.029   0.002 0   0 100
Guerneville Rd (Prokopakis) 8/27/26 98.4   3.1 1516 51.2   2.6 0635 53.9   1.0 64 95   3 23   0 - - - 0.01 0.04 - - 60
SunnyView Vineyard (SCWC) 8/27/26 91.4   1.2 1413 49.5   0.7 0643 52.7   0.9 64 94   6 30   10 1.6 14.6   3.1 1758 0.00 0.00 0.172   0.003 506   39 90
Guerneville Rd West (Balletto) 8/27/26 92.0   2.7 1558 52.1   2.7 0633 55.8   1.5 70 96   4 32   4 2.4 16.9   5.4 1753 0.00 0.11 - - 80
Sanchietti Ranch 8/27/26 89.1   1.8 1453 51.5   0.1 0646 56.5   0.9 - 94   4 39   11 3.3 16.0   3.6 1742 0.00 0.00 - - 80
Occidental Rd (Sebastopol) 8/27/26 93.4   4.5 1339 50.3   0.8 0648 57.6   1.0 77 100   0 31   2 1.8 13.6   2.0 1643 0.00 0.00 - - 80
Harper's Rest (Windsor-West) 8/27/26 98.6   0.4 1521 51.9   5.7 0604 51.6   0.8 - 94   3 15   3 1.8 11.9   2.7 1606 0.00 0.04 - - 20
Lower Westside Rd (Ranch 12) 8/27/26 95.3   0.2 1501 51.6   5.7 0612 52.1   1.2 61 95   5 18   5 1.9 15.9   5.0 1613 0.00 0.03 - - 70
Guerneville (Laughlin Rd) 8/27/26 93.0   3.8 1310 50.4   5.7 0623 51.5   2.1 61 93   3 25   1 2.3 14.9   1.2 1420 0.00 0.02 - - 80
Korbel (Winery) 8/27/26 94.3   1.4 1412 52.7   4.8 0649 52.6   1.3 60 95   2 23   5 0.4 11.3   0.5 1355 0.00 0.01 - - 70
Forestville (Shone Farms) 8/27/26 97.2   0.8 1515 54.2   4.4 0630 53.6   1.1 60 92   6 16   3 1.9 12.6   2.3 1913 0.00 0.04 0.200   0.008 558   23 70
Forestville-NE (Ranch 30) 8/27/26 96.6   0.4 1509 50.8   4.6 0526 54.2   1.1 64 96   3 20   4 2.6 15.0   3.5 1838 0.00 0.03 0.219   0.011 580   32 10
Foggy Bend (Ranch 41) 8/27/26 96.1   1.8 1448 51.8   3.4 0649 56.3   1.4 66 96   2 24   0 1.8 15.3   3.9 1607 0.00 0.03 0.205   0.006 574   37 70
Last Stop 8/27/26 97.5   0.9 1423 50.9   5.2 0639 53.3   1.1 63 96   2 17   1 1.9 13.4   2.4 1732 0.00 0.02 0.202   0.007 571   19 40
Green Valley Vineyard 8/27/26 93.9   0.9 1444 53.6   7.3 0621 51.8   1.2 60 94   5 15   1 2.1 16.2   4.2 1633 0.00 0.07 0.051   0.004 1   32 70
Park Royal 8/27/26 90.8   0.1 1411 52.3   1.6 0637 52.7   0.9 62 90   9 29   9 - - - 0.00 0.00 - - 80
Merino 8/27/26 92.4   0.9 1415 49.0   2.5 0635 55.2   0.7 71 100   0 35   10 2.3 15.4   5.2 1751 0.00 0.00 0.203   0.001 580   28 80
Green Valley (Sanchietti) 8/27/26 96.9   1.8 1546 47.6   6.6 0633 - - - - - - - - - - - 70
Keefer Ranch (Green Valley) 8/27/26 94.2   1.5 1502 49.7   6.2 0648 53.5   0.9 65 97   0 20   1 - - - 0.00 0.04 - - 70
Graton-West (Dutton Ranch) 8/27/26 96.7   4.6 1504 50.7   6.5 0617 54.4   0.4 68 100   0 14   3 1.8 11.1   0.3 1753 0.00 0.05 - - 70
Graton-South (Mill Station Rd) 8/27/26 89.6   4.2 1625 48.6   7.2 0642 53.0   1.6 66 95   3 25   9 0.8 8.7   0.1 1750 0.00 0.03 - - 50
Occidental (Horseshoe Bend) 8/27/26 91.5   5.3 1516 56.2   8.2 0650 52.6   0.5 - 89   11 18   9 - - - 0.00 0.08 - - 40
Sexton Valley (Jacqueline's Blk) 8/27/26 88.8   4.2 1531 51.1   9.4 0646 55.9   2.3 71 100   0 31   10 1.2 10.0   1.4 1827 0.00 0.09 - - 50
Sebastopol Hills (Burnside Rd) 8/27/26 84.2   1.5 1244 56.9   8.8 0012 56.0   1.6 67 89   11 34   5 2.5 13.9   2.6 1542 0.00 0.00 - - 90
Pleasant Hill 8/27/26 91.0   2.4 1522 52.9   8.0 0632 54.2   1.9 - 96   2 29   1 2.0 12.2   3.0 1619 0.00 0.05 - - 90
Seaview/Fort Ross (Hirsch) 8/27/26 86.8   0.4 1414 63.6   2.2 0001 49.0   2.3 48 70   0 19   6 4.2 11.7   5.8 0416 0.00 0.06 0.205   0.021 568   49 80
Max   99.2 - 63.6 - 57.6 77 100 39 4.2 21.7 - 0.01 0.11 0.222 605 -
Avg   - - - - 52.9 63 - - 2.1 - - - - - - -
Min   84.2 - 47.6 - 18.5 39 70 0 0.2 8.7 - 0.00 0.00 0.051 1 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 8/28/26 6:38 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 8/27/26 91.1   0.7 1328 61.0   9.3 0105 49.7   2.3 73   4 25   9 2.1   0.1 10.7   0.8 1428 SE | 144 0.00 0.01 0.152   0.009 391   62 90   10
Lower Bennett Valley 8/27/26 92.9   1.5 1312 49.8   10.6 0634 52.1   3.8 96   4 25   5 3.2   0.2 14.8   0.1 1328 SW | 232 0.00 0.00 0.199   0.017 519   82 80   10
Kenwood (Wildwood) 8/27/26 96.2   1.5 1411 52.8   5.9 0602 49.3   2.0 89   7 17   3 2.9   0.5 15.3   3.2 1607 N | 350 0.00 0.00 0.211   0.006 558   39 0   0
Sonoma Valley (Bedrock) 8/27/26 95.7   1.0 1500 52.4   8.6 0703 48.6   4.3 89   6 12   4 - - - - 0.00 0.00 - - 70   10
Sonoma-West (Arnold) 8/27/26 94.5   1.3 1357 51.2   8.4 0633 49.6   3.0 87   2 21   6 3.3   0.7 20.8   5.7 1720 SW | 222 0.00 0.00 0.225   0.025 550   138 0   0
Sonoma Valley HS 8/27/26 93.0   1.1 1402 54.8   9.1 0657 54.7   1.8 99   1 28   7 2.1   0.2 11.6   3.0 1858 WSW | 244 0.00 0.00 0.188   0.014 520   82 70   10
Sonoma East (Bundschu01) 8/27/26 92.1   0.4 1516 52.7   9.7 0612 51.8   2.3 91   5 21   4 3.3   0.6 18.2   0.2 1716 S | 188 0.00 0.00 0.201   0.010 517   99 70   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) 8/27/26 92.3   1.1 1418 52.4   9.2 0652 52.0   2.0 90   4 21   4 2.4   0.1 15.5   0.3 1533 W | 267 0.00 0.00 - - 70   10
Ricci Vineyards (Carneros) 8/27/26 90.5   0.4 1228 52.5   6.6 0652 53.0   2.1 92   3 25   6 3.5   0.2 15.7   0.4 1724 SSW | 212 0.00 0.01 0.200   0.017 514   104 80   10
Carneros (Ranch 71) 8/27/26 89.0   0.9 1238 60.3   9.0 0542 53.4   1.8 80   14 24   6 3.3   0.1 18.7   1.3 1638 WSW | 255 0.00 0.00 0.196   0.021 528   91 70   10
Carneros Upper (Ranch 81) 8/27/26 89.2   0.2 1431 59.3   5.6 0523 54.4   2.7 - - 5.9   1.2 19.4   1.1 1559 SW | 231 - - - - 70   10
Carneros Lower (Ranch 81) 8/27/26 89.2   3.6 1433 54.8   8.0 0453 54.5   3.8 100   0 0   0 2.0   0.6 14.0   1.8 1343 SSE | 161 0.00 0.00 0.036   0.007 0   1 70   10
Rohnert Park-West (Stony Point) 8/27/26 85.8   0.4 1230 48.9   3.3 0645 54.5   0.0 98   2 39   5 1.7   0.2 13.5   0.1 1754 S | 191 0.00 0.00 - - 80   20
Cartograph Wines Base 8/27/26 82.1   0.4 1236 54.7   2.4 0645 56.4   0.8 95   4 46   8 4.6   1.5 23.3   2.4 1742 SSE | 166 0.00 0.08 0.182   0.001 563   27 90   20
Cartograph Wines Remote 8/27/26 84.8   0.3 1218 52.6   0.2 0643 - - - - - - - - - - - 80   20
Rice-Spivak Vineyard 8/27/26 85.3   0.3 1231 47.6   2.6 0625 - - - - - - - - - - - 60   20
Penngrove (Asellus) 8/27/26 88.1   1.6 1259 51.3   1.3 0641 52.2   0.4 96   1 28   5 2.5   0.1 12.5   0.3 1215 WNW | 289 0.00 0.00 - - 80   10
Petaluma (Ranch 10) 8/27/26 90.5   0.0 1352 51.3   1.8 0635 52.2   0.2 94   2 26   5 2.4   0.0 12.4   0.2 1545 W | 276 0.00 0.00 0.195   0.003 549   23 70   10
Max   96.2 - 61.0 - 56.4 100 46 5.9 23.3 - - 0.00 0.08 0.225 563 -
Avg   - - - - 52.4 - - 3.0 - - - - - - - -
Min   82.1 - 47.6 - 48.6 73 0 1.7 10.7 - - 0.00 0.00 0.036 0 -