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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 9/20/26 6:04 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) 9/19/26 89.0   7.0 1607 59.1   8.0 0645 44.4   3.2 42   17 64   33 17   9 7.3   0.5 26.7   3.1 1842 NNW | 334 0.00 0.33 0.230   0.032 538   3 90   10
Rockpile Lower (Cooley) 9/19/26 91.2   5.2 1628 57.2   3.7 0618 46.6   1.8 46   12 71   20 16   7 2.9   0.8 16.8   5.4 1807 WSW | 255 0.00 0.33 - - 50   10
Cloverdale-East (Ranch 83) 9/19/26 90.7   0.1 1615 47.4   1.8 0658 51.2   1.6 - - - 2.1   0.2 12.9   2.3 1255 SSW | 196 0.00 0.12 0.163   0.003 470   1 80   10
Cloverdale-SE (Ranch 38) 9/19/26 89.0   1.2 1631 52.9   1.1 0731 53.1   2.0 66   8 92   1 33   8 5.3   0.6 17.5   1.4 1415 SW | 229 0.00 0.11 0.172   0.004 436   3 40   10
Geyserville-North (Hoffman) 9/19/26 87.8   0.9 1642 46.9   0.1 0601 53.2   0.1 72   4 97   2 37   2 2.1   0.2 10.2   1.8 1709 SSE | 147 0.00 0.00 0.148   0.009 455   19 20   10
Geyserville (Ranch 3) 9/19/26 88.0   0.2 1539 46.9   0.6 0552 51.0   0.1 69   3 100   0 31   3 2.1   0.2 10.4   0.7 1758 SSE | 165 0.00 0.13 0.143   0.006 414   18 50   10
Geyserville-East (Ranch 40) 9/19/26 86.6   0.3 1539 51.8   0.5 0654 53.8   0.4 75   8 99   4 34   0 5.6   1.3 18.4   0.3 1743 S | 189 0.00 0.12 0.169   0.004 481   2 10   10
Geyserville-South (Nervo Station) 9/19/26 86.6   0.5 1619 50.5   0.4 0656 - - - - 2.2   0.1 11.1   0.7 1647 S | 178 0.00 0.21 - - 20   10
Peterson (Ranch 09) 9/19/26 86.1   0.6 1532 47.2   1.2 0449 51.0   1.1 71   6 97   5 32   1 2.3   0.0 11.9   0.8 1352 SSW | 203 0.00 0.20 0.145   0.011 454   31 20   10
Crazy Creek Ranch 9/19/26 88.6   1.3 1618 46.6   0.3 0525 52.4   0.3 73   3 98   2 34   0 1.5   0.1 11.0   0.4 1725 SSE | 150 0.00 0.23 0.154   0.005 496   9 0   10
Whitton Ranch (201e) 9/19/26 88.2   0.2 1634 43.3   0.4 0428 51.4   1.2 73   4 100   0 31   0 2.1   0.2 12.2   1.6 1752 S | 189 0.00 0.29 0.133   0.007 382   20 10   10
Lytton East (Shop Hill Bottom) 9/19/26 87.0   0.3 1619 47.0   0.9 0422 51.5   0.8 73   5 100   5 32   1 2.5   0.1 12.7   2.1 1659 ESE | 122 0.00 0.27 0.155   0.010 471   24 30   10
Lytton East (Hill 5) 9/19/26 86.0   0.2 1631 50.5   1.9 0549 52.1   0.4 74   6 98   3 34   2 3.6   0.1 15.3   1.4 1742 S | 174 0.00 0.25 0.148   0.013 422   26 80   20
Lytton West Lower (Lew 6) 9/19/26 86.6   0.1 1559 46.0   0.3 0513 51.5   0.9 74   6 100   3 34   2 2.2   0.1 13.1   1.6 1629 S | 184 0.00 0.28 0.153   0.014 482   29 30   10
Lytton West Hill (23PS) 9/19/26 85.5   0.3 1623 49.8   0.0 0549 52.8   0.6 75   7 100   6 35   2 3.2   0.4 14.8   0.5 1712 SSE | 150 0.00 0.26 0.157   0.015 493   31 100   0
Big River 9/19/26 84.9   0.3 1622 48.6   0.5 0634 53.0   0.0 75   4 99   2 38   2 2.0   0.1 13.8   1.8 1737 S | 182 0.00 0.28 0.154   0.009 499   23 100   10
Jimtown-North (Piccolo Ranch 15) 9/19/26 89.6   2.1 1635 46.3   1.0 0402 49.4   0.7 68   3 100   0 25   1 1.1   0.0 10.5   2.4 1413 SW | 216 0.00 0.20 0.129   0.006 422   10 0   10
HWY 128/Chalk Hill Rd (Landslide) 9/19/26 88.7   1.5 1500 45.0   1.1 0620 50.4   0.2 70   2 95   0 29   0 1.8   0.1 11.3   2.8 1702 SW | 230 0.00 0.31 0.140   0.004 418   11 30   10
N Chalk Hill Rd (Ranch 63) 9/19/26 86.0   0.8 1525 44.7   1.5 0417 49.5   0.1 70   3 99   0 30   1 1.8   0.1 12.4   1.1 1755 SSW | 206 0.00 0.29 0.140   0.006 430   12 10   10
Newman Knights Valley 9/19/26 87.1   1.3 1604 45.1   0.6 0656 52.9   0.0 72   1 89   1 46   1 2.2   0.3 11.9   2.3 1809 SW | 218 0.00 0.40 - - 20   10
Knights Valley (Bavarian Lion) 9/19/26 88.8   2.8 1551 42.9   0.2 0619 48.2   0.2 68   1 97   0 22   4 1.6   0.4 10.2   4.1 1517 WNW | 283 0.00 0.26 0.154   0.004 480   8 40   20
Red Tail 9/19/26 87.5   2.0 1451 46.0   0.4 0700 51.0   0.2 72   1 95   0 32   2 2.4   0.1 12.9   1.2 1734 SSE | 160 0.00 0.29 0.156   0.001 480   17 90   10
Franz Valley (Stornetta) 9/19/26 88.0   3.4 1504 43.5   0.1 0708 48.1   0.5 - 94   0 21   7 1.3   0.2 11.8   0.4 1807 SSE | 162 0.00 0.43 - - 90   20
Upper Dry Creek Valley 9/19/26 88.6   1.2 1625 47.0   0.5 0531 52.1   0.5 70   5 96   1 33   5 2.4   0.5 12.1   0.1 1756 SE | 146 0.00 0.14 0.164   0.006 499   14 70   10
Lower Dry Creek Valley 9/19/26 85.2   1.3 1616 47.2   0.6 0554 52.2   0.7 75   6 100   0 36   4 2.2   0.7 15.6   1.8 1748 SSE | 154 0.00 0.26 0.149   0.007 451   28 80   20
Max   91.2 - 59.1 - 53.8 75 100 46 7.3 26.7 - - 0.00 0.43 0.230 538 -
Avg   - - - - 50.9 69 - - 2.6 - - - - - - - -
Min   84.9 - 42.9 - 44.4 42 64 16 1.1 10.2 - - 0.00 0.00 0.129 382 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 9/20/26 6:04 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) 9/19/26 88.0   0.3 1544 50.6   0.7 0554 52.5   0.3 73 88   3 38   2 0.0 10.9   0.7 1745 0.00 0.50 0.129   0.010 461   35 0
Windsor-East (Ranch 16) 9/19/26 83.5   2.2 1539 46.2   0.5 0536 50.8   0.1 75 100   5 30   1 3.0 14.7   0.2 1800 0.00 0.23 0.153   0.008 470   16 100
Mark West-North (Ranch 14) 9/19/26 83.2   2.1 1526 48.2   0.7 0446 51.4   0.0 75 98   1 31   4 1.7 12.6   0.0 1725 0.00 0.24 - - 100
Windsor-SE (Silk Rd) 9/19/26 84.1   0.4 1537 46.1   0.6 0435 51.6   0.7 77 99   0 36   3 1.8 11.6   0.1 1728 0.00 0.32 0.139   0.013 456   30 90
Fulton-NW (Ranch 5) 9/19/26 81.9   0.4 1527 47.5   0.1 0446 38.5   8.3 61 100   0 3   0 3.3 17.0   0.8 1731 0.00 0.23 0.154   0.010 474   34 90
Bisordi (Fulton) 9/19/26 82.7   1.0 1529 45.4   0.7 0437 52.4   0.4 79 97   0 41   2 1.9 14.3   1.6 1737 0.00 0.22 0.148   0.011 496   36 90
Windsor-South (Laughlin Rd) 9/19/26 84.7   0.7 1524 49.5   0.7 0411 52.0   0.1 76 100   5 0   30 - - - 0.00 0.17 - - 90
Fulton-SE (Barnes Rd) 9/19/26 82.4   0.1 1532 48.8   0.6 0516 52.3   0.4 76 96   1 36   1 1.6 13.9   1.1 1725 0.00 0.29 - - 90
Fulton-SW (Ranch 21) 9/19/26 81.3   1.3 1534 47.5   1.5 0445 30.3   1.4 59 100   0 0   0 2.6 14.4   0.4 1759 0.00 0.20 0.152   0.013 488   31 90
NW Santa Rosa (Piner Road) 9/19/26 82.3   0.3 1541 46.6   0.8 0404 54.4   0.5 86 100   0 43   2 1.8 13.7   0.9 1818 0.00 0.00 - - 90
River Rd South (Denner Ranch) 9/19/26 81.3   1.7 1510 47.3   1.0 0408 -16.3   8.0 25 100   0 0   0 4.1 16.9   0.9 1644 - - - - 100
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) 9/19/26 86.4   1.6 1503 47.5   0.1 0246 52.5   0.5 78 100   0 34   3 - - - 0.00 0.24 - - 40
SunnyView Vineyard (SCWC) 9/19/26 81.6   1.3 1515 46.4   0.4 0322 51.3   0.1 78 100   0 37   4 1.6 12.2   1.5 1715 0.00 0.27 0.124   0.010 414   20 90
Guerneville Rd West (Balletto) 9/19/26 82.0   0.0 1514 47.8   0.0 0251 53.6   0.3 82 99   1 44   3 2.5 13.2   0.0 1715 0.00 0.43 - - 90
Sanchietti Ranch 9/19/26 81.0   1.8 1516 48.6   0.8 0228 54.4   0.3 - 97   0 47   4 2.9 13.4   0.7 1716 0.00 0.28 - - 90
Occidental Rd (Sebastopol) 9/19/26 82.4   0.1 1507 48.6   2.0 0232 56.2   0.8 90 100   0 49   4 1.8 13.4   2.2 1555 0.00 0.20 - - 90
Harper's Rest (Windsor-West) 9/19/26 85.1   1.7 1544 47.3   0.7 0516 51.3   0.5 - 97   0 35   5 1.6 11.5   0.6 1717 0.00 0.45 - - 100
Lower Westside Rd (Ranch 12) 9/19/26 84.7   0.6 1532 46.8   0.6 0531 51.9   0.9 77 100   0 37   5 1.7 11.7   1.2 1332 0.00 0.45 - - 100
Guerneville (Laughlin Rd) 9/19/26 85.3   3.8 1502 46.7   0.1 0359 50.6   0.1 74 97   1 35   3 1.8 14.2   1.1 1544 0.00 0.81 - - 100
Korbel (Winery) 9/19/26 85.9   3.6 1451 48.4   0.0 0351 52.3   0.4 75 98   1 35   1 0.6 9.9   5.8 1614 0.00 0.52 - - 100
Forestville (Shone Farms) 9/19/26 84.2   1.4 1523 49.6   1.0 0438 53.2   0.4 79 97   1 41   6 1.7 10.7   1.2 1626 0.00 0.43 0.137   0.015 444   45 100
Forestville-NE (Ranch 30) 9/19/26 83.4   1.3 1527 46.4   0.5 0515 53.3   0.4 81 99   1 43   5 2.2 11.9   1.1 1745 0.00 0.40 0.145   0.013 464   43 0
Foggy Bend (Ranch 41) 9/19/26 84.1   0.5 1536 47.4   0.1 0526 54.0   0.2 80 97   0 46   3 1.5 10.8   2.3 1724 0.00 0.42 0.136   0.017 457   41 100
Last Stop 9/19/26 85.8   0.9 1517 46.6   0.4 0432 52.8   1.1 78 97   0 40   5 1.9 9.8   2.3 1557 0.00 0.39 0.141   0.014 459   42 60
Green Valley Vineyard 9/19/26 81.7   2.1 1659 48.1   0.1 0442 52.5   0.7 79 98   0 31   3 1.6 10.1   5.0 1614 0.00 0.57 0.022   0.010 5   4 100
Park Royal 9/19/26 80.6   1.9 1510 48.9   1.1 0319 51.9   0.3 78 98   0 38   3 - - - 0.00 0.21 - - 90
Merino 9/19/26 82.9   1.9 1532 46.0   0.8 0329 53.5   0.1 82 100   0 42   4 2.0 14.0   2.0 1721 0.00 0.33 0.141   0.018 459   51 90
Green Valley (Sanchietti) 9/19/26 83.8   4.1 1513 45.6   2.6 0150 - - - - - - - - - - - 100
Keefer Ranch (Green Valley) 9/19/26 81.1   2.3 1457 47.4   1.4 0200 52.8   0.9 80 97   0 44   8 - - - 0.00 0.48 - - 100
Graton-West (Dutton Ranch) 9/19/26 82.9   2.2 1457 47.6   0.7 0207 55.4   1.5 86 100   0 42   8 1.7 10.6   0.7 1505 0.00 0.61 - - 100
Graton-South (Mill Station Rd) 9/19/26 78.3   2.1 1505 46.3   1.9 0220 51.9   0.6 82 99   1 44   4 0.7 7.8   0.0 1718 0.00 0.41 - - 60
Occidental (Horseshoe Bend) 9/19/26 76.2   3.3 1500 47.9   3.0 0635 52.3   0.7 - 100   3 48   6 - - - 0.00 0.75 - - 80
Sexton Valley (Jacqueline's Blk) 9/19/26 79.2   1.0 1456 45.0   0.1 0407 52.6   0.6 83 98   1 49   1 1.0 11.3   2.8 1207 0.00 0.27 - - 80
Sebastopol Hills (Burnside Rd) 9/19/26 75.3   1.1 1457 50.4   0.1 0556 53.4   1.3 87 100   0 52   2 2.2 15.6   2.5 1511 0.00 0.00 - - 50
Pleasant Hill 9/19/26 80.2   0.8 1436 48.1   0.8 0222 51.9   0.0 - 97   1 40   2 1.7 12.3   0.9 1512 0.00 0.49 - - 100
Seaview/Fort Ross (Hirsch) 9/19/26 81.2   8.0 1358 60.3   7.2 1149 48.3   2.4 52 74   19 32   0 2.5 9.6   3.7 1800 0.00 0.07 0.154   0.001 522   4 20
Max   88.0 - 60.3 - 56.2 90 100 52 4.1 17.0 - 0.00 0.81 0.154 522 -
Avg   - - - - 49.5 76 - - 1.9 - - - - - - -
Min   75.3 - 45.0 - -16.3 25 74 0 0.0 7.8 - 0.00 0.00 0.022 5 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 9/20/26 6:04 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 9/19/26 83.3   2.3 1545 50.4   0.8 0542 50.9   0.5 94   1 31   3 1.5   0.3 9.2   0.0 1521 SSE | 149 0.00 0.02 0.117   0.001 371   2 100   20
Lower Bennett Valley 9/19/26 86.0   4.7 1526 41.5   0.8 0649 51.0   0.0 100   0 30   7 3.5   0.2 13.7   0.3 1704 S | 177 0.00 0.39 0.149   0.002 485   3 90   10
Kenwood (Wildwood) 9/19/26 87.0   3.8 1521 44.8   3.6 0718 50.6   0.7 100   0 28   5 2.4   0.6 11.9   2.3 1725 N | 6 0.00 0.21 0.146   0.006 444   22 60   10
Sonoma Valley (Bedrock) 9/19/26 88.2   4.4 1545 44.3   0.7 0624 48.6   0.8 96   0 21   6 - - - - 0.00 0.29 - - 90   10
Sonoma-West (Arnold) 9/19/26 89.2   5.6 1532 45.6   0.2 0605 49.0   0.9 92   3 22   7 2.1   0.9 15.2   3.0 1532 SW | 221 0.00 0.35 0.172   0.016 508   54 80   10
Sonoma Valley HS 9/19/26 86.6   3.9 1607 47.6   0.9 0714 53.7   0.0 100   0 31   6 1.7   0.4 12.0   0.3 1807 SSW | 207 0.00 0.01 0.141   0.015 455   52 90   10
Sonoma East (Bundschu01) 9/19/26 82.4   1.8 1435 45.2   1.1 0707 50.8   0.1 94   2 34   4 2.7   0.4 14.2   4.6 1602 SSE | 152 0.00 0.23 0.148   0.021 460   53 100   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) 9/19/26 82.9   1.7 1432 45.2   3.7 0621 50.9   0.6 94   0 35   5 1.8   1.0 12.5   4.0 1656 SW | 220 0.00 0.18 - - 100   0
Ricci Vineyards (Carneros) 9/19/26 80.4   3.4 1644 46.1   5.2 0636 51.6   1.2 96   0 37   6 3.2   1.2 16.6   4.2 1811 NW | 311 0.00 0.12 0.148   0.029 463   62 100   20
Carneros (Ranch 71) 9/19/26 78.6   3.2 1652 52.9   0.4 0635 53.2   0.3 94   6 39   7 3.2   1.7 21.5   6.3 1728 WSW | 256 0.00 0.07 0.136   0.040 433   84 80   10
Carneros Upper (Ranch 81) 9/19/26 79.8   3.3 1508 53.9   2.0 0056 49.3   21.9 - - 5.7   1.4 24.8   3.7 1757 W | 262 - - - - 80   10
Carneros Lower (Ranch 81) 9/19/26 79.8   8.8 1457 47.6   2.5 0614 47.8   2.9 100   0 0   0 1.3   0.0 12.6   1.4 1413 S | 174 0.00 0.01 0.019   0.003 1   13 80   20
Rohnert Park-West (Stony Point) 9/19/26 77.8   0.2 1502 45.2   2.1 0259 53.3   0.7 98   0 46   1 1.8   0.3 15.9   3.0 1551 WSW | 246 0.00 0.20 - - 50   10
Cartograph Wines Base 9/19/26 74.0   0.7 1458 51.7   0.6 0155 54.4   0.9 98   0 55   2 3.3   0.8 21.2   0.3 1703 S | 179 0.00 0.30 0.123   0.013 455   40 10   10
Cartograph Wines Remote 9/19/26 72.0   3.3 1421 49.0   0.8 0135 - - - - - - - - - - - 50   10
Rice-Spivak Vineyard 9/19/26 77.4   0.1 1449 44.4   1.0 0210 - - - - - - - - - - - 50   10
Penngrove (Asellus) 9/19/26 81.5   3.1 1457 47.2   2.2 0403 51.7   1.8 97   0 34   7 2.0   0.2 12.6   1.5 1533 W | 264 0.00 0.57 - - 20   10
Petaluma (Ranch 10) 9/19/26 84.4   2.8 1524 46.3   3.6 0428 51.4   2.4 96   1 30   6 2.1   0.6 12.4   1.0 1722 WNW | 290 0.00 0.09 0.136   0.006 435   17 90   10
Max   89.2 - 53.9 - 54.4 100 55 5.7 24.8 - - 0.00 0.57 0.172 508 -
Avg   - - - - 51.1 - - 2.6 - - - - - - - -
Min   72.0 - 41.5 - 47.8 92 0 1.3 9.2 - - 0.00 0.01 0.019 1 -