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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 8/1/26 4:24 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) 7/31/26 96.2   4.9 1431 57.4   1.1 0538 46.5   5.1 44   5 72   5 12   1 11.4   0.4 28.3   2.6 1850 NW | 315 0.00 0.04 0.321   0.007 720   14 0   0
Rockpile Lower (Cooley) 7/31/26 101.4   6.9 1450 60.0   0.7 0557 46.9   5.7 40   5 65   6 13   5 4.6   1.1 22.1   4.2 1846 W | 274 0.00 0.02 - - 0   0
Cloverdale-East (Ranch 83) 7/31/26 101.1   1.5 1547 50.1   3.0 0613 50.6   4.0 - - - 2.1   0.5 15.4   0.0 1746 SSE | 152 0.00 0.00 0.248   0.007 680   17 0   0
Cloverdale-SE (Ranch 38) 7/31/26 99.0   2.3 1551 56.5   2.4 0715 51.5   4.2 46   6 76   12 21   10 4.3   0.4 17.8   2.9 1647 NNE | 15 0.00 0.01 0.261   0.003 628   14 0   0
Geyserville-North (Hoffman) 7/31/26 97.8   2.7 1526 48.2   1.5 0614 53.8   0.1 56   0 93   2 25   3 2.0   0.1 12.0   0.6 1634 SE | 136 0.00 0.00 0.218   0.003 591   20 0   0
Geyserville (Ranch 3) 7/31/26 97.6   2.2 1539 50.2   1.4 0634 51.1   0.5 51   0 87   1 20   10 2.1   0.0 12.1   0.4 1703 ESE | 113 0.00 0.00 0.238   0.005 658   25 0   0
Geyserville-East (Ranch 40) 7/31/26 95.1   1.9 1550 55.0   0.6 0510 52.8   1.7 52   3 87   3 24   0 4.7   0.4 19.4   0.2 1635 SSW | 192 0.00 0.00 0.265   0.001 656   18 10   10
Geyserville-South (Nervo Station) 7/31/26 95.8   3.1 1520 53.0   0.2 0609 - - - - 2.2   0.0 13.1   0.3 1730 ESE | 107 0.00 0.00 - - 10   10
Peterson (Ranch 09) 7/31/26 94.8   2.6 1521 47.8   1.0 0615 50.4   0.5 54   0 88   1 21   1 2.3   0.5 10.5   0.3 1622 SSE | 167 0.00 0.00 0.224   0.007 639   21 0   0
Crazy Creek Ranch 7/31/26 97.5   2.5 1532 47.0   2.0 0614 52.7   1.1 59   1 96   4 23   2 1.6   0.3 10.4   0.3 1728 S | 180 0.00 0.00 0.225   0.007 657   23 0   0
Whitton Ranch (201e) 7/31/26 97.6   1.7 1605 42.9   1.2 0632 51.1   0.6 59   0 100   0 22   1 1.8   0.3 10.5   1.6 1618 SSE | 154 0.00 0.00 0.219   0.005 607   20 0   0
Lytton East (Shop Hill Bottom) 7/31/26 94.3   2.1 1517 47.3   1.5 0618 50.7   0.3 55   0 94   0 23   1 2.5   0.2 15.3   1.5 1730 SSE | 150 0.00 0.00 0.241   0.001 666   22 10   10
Lytton East (Hill 5) 7/31/26 94.8   2.4 1604 50.8   1.7 0632 51.5   0.6 54   0 92   2 23   0 3.5   0.4 17.0   1.1 1704 S | 188 0.00 0.00 0.236   0.001 600   18 10   10
Lytton West Lower (Lew 6) 7/31/26 94.5   2.0 1551 46.2   1.4 0610 51.0   0.1 57   0 96   0 23   0 2.3   0.5 13.6   0.4 1633 S | 178 0.00 0.00 0.226   0.004 606   14 0   0
Lytton West Hill (23PS) 7/31/26 93.6   1.8 1528 51.4   0.4 0632 52.0   0.5 55   0 92   0 24   0 3.2   0.4 16.0   0.1 1738 S | 180 0.00 0.00 0.243   0.005 646   21 10   10
Big River 7/31/26 93.5   1.7 1515 50.6   1.9 0615 53.2   0.8 58   0 96   2 27   1 1.9   0.3 13.2   0.8 1711 S | 184 0.00 0.00 0.237   0.007 689   23 0   0
Jimtown-North (Piccolo Ranch 15) 7/31/26 96.2   1.7 1549 46.3   1.9 0604 48.8   1.1 53   1 100   3 18   0 1.3   0.3 11.6   0.0 1614 S | 185 0.00 0.00 0.203   0.010 602   20 0   0
HWY 128/Chalk Hill Rd (Landslide) 7/31/26 95.6   1.5 1509 46.6   1.2 0611 51.0   1.2 57   0 94   1 21   1 1.7   0.2 12.7   0.8 1651 ESE | 122 0.00 0.00 0.207   0.006 570   20 0   0
N Chalk Hill Rd (Ranch 63) 7/31/26 93.8   1.9 1538 45.0   1.8 0605 50.1   1.1 55   0 91   2 22   1 1.8   0.2 12.0   0.4 1559 SSW | 196 0.00 0.00 0.214   0.008 598   22 10   10
Newman Knights Valley 7/31/26 94.9   1.7 1601 46.6   1.1 0619 57.1   1.8 64   1 86   2 44   2 2.4   0.2 14.2   1.1 1526 SW | 236 0.00 0.00 - - 10   10
Knights Valley (Bavarian Lion) 7/31/26 95.6   2.0 1556 45.0   0.5 0623 49.7   2.0 57   1 97   1 17   3 2.0   0.2 12.9   0.3 1752 SSW | 206 0.00 0.00 0.230   0.004 653   21 0   0
Red Tail 7/31/26 94.5   1.4 1433 47.3   0.5 0634 52.3   1.1 59   0 92   2 27   2 2.5   0.1 14.0   1.4 1640 S | 176 0.00 0.01 0.234   0.003 651   21 10   10
Franz Valley (Stornetta) 7/31/26 95.3   2.4 1611 45.3   1.0 0623 49.7   2.3 - 93   2 19   2 1.4   0.1 11.3   4.7 1457 S | 180 0.00 0.00 - - 0   0
Upper Dry Creek Valley 7/31/26 97.0   1.2 1503 48.3   1.3 0556 51.6   2.1 52   1 94   2 19   11 2.4   0.6 13.6   0.3 1635 SSE | 164 0.00 0.00 0.243   0.015 664   28 0   0
Lower Dry Creek Valley 7/31/26 93.0   2.0 1448 48.0   1.5 0628 51.9   0.2 57   0 100   1 26   0 2.0   0.3 13.9   2.4 1603 N | 353 0.00 0.01 0.227   0.006 632   23 10   10
Max   101.4 - 60.0 - 57.1 64 100 44 11.4 28.3 - - 0.00 0.04 0.321 720 -
Avg   - - - - 51.2 54 - - 2.8 - - - - - - - -
Min   93.0 - 42.9 - 46.5 40 65 12 1.3 10.4 - - 0.00 0.00 0.203 570 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 8/1/26 4:24 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) 7/31/26 94.8   1.7 1357 50.8   1.6 0620 53.6   0.4 60 83   0 27   0 0.0 6.5   6.5 1934 0.00 0.02 0.196   0.003 656   11 0
Windsor-East (Ranch 16) 7/31/26 92.0   3.3 1529 46.2   1.2 0551 49.9   0.6 59 94   1 21   0 2.7 15.0   0.3 1711 0.00 0.00 0.241   0.001 645   24 50
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) 7/31/26 91.9   1.2 1559 46.1   1.3 0548 50.6   0.0 61 95   0 22   2 1.6 11.2   2.6 1354 0.00 0.02 0.218   0.003 651   17 20
Fulton-NW (Ranch 5) 7/31/26 90.5   2.8 1604 46.9   1.3 0607 50.6   0.4 60 90   2 24   0 2.9 15.0   1.2 1651 0.00 0.00 0.241   0.001 660   9 60
Bisordi (Fulton) 7/31/26 91.3   3.5 1501 45.4   1.6 0605 52.8   0.5 65 95   1 29   0 1.7 13.2   0.4 1649 0.00 0.00 0.229   0.005 705   19 60
Windsor-South (Laughlin Rd) 7/31/26 93.1   2.7 1503 48.6   1.4 0557 51.4   0.1 60 94   1 22   4 - - - 0.00 0.00 - - 40
Fulton-SE (Barnes Rd) 7/31/26 90.5   3.6 1451 48.7   1.8 0556 51.6   0.3 60 91   1 25   0 1.9 14.5   0.9 1617 0.00 0.00 - - 60
Fulton-SW (Ranch 21) 7/31/26 90.4   2.4 1607 48.0   0.4 0631 50.7   0.3 60 92   2 24   0 2.6 13.7   1.6 1615 0.00 0.00 0.242   0.000 688   18 60
NW Santa Rosa (Piner Road) 7/31/26 91.1   2.4 1548 45.6   2.6 0608 54.1   0.2 70 100   0 27   5 1.7 11.4   0.3 1739 0.00 0.00 - - 60
River Rd South (Denner Ranch) 7/31/26 89.9   0.9 1559 45.6   1.6 0623 11.4   10.0 32 100   0 0   0 3.9 17.5   2.0 1505 - - - - 50
West Santa Rosa (LOV Vineyard) 7/31/26 92.0   1.8 1613 46.7   2.0 0628 50.8   0.2 63 96   0 21   5 1.7 11.8   0.0 1419 0.00 0.00 0.043   0.011 0   0 40
Guerneville Rd (Prokopakis) 7/31/26 96.8   3.6 1557 45.6   2.3 0612 51.3   0.1 62 95   1 20   2 - - - 0.00 0.02 - - 40
SunnyView Vineyard (SCWC) 7/31/26 91.3   2.9 1542 43.8   2.4 0612 49.7   0.3 61 94   0 23   2 1.6 11.2   1.0 1400 0.00 0.00 0.202   0.001 605   12 70
Guerneville Rd West (Balletto) 7/31/26 90.2   1.5 1610 47.8   0.1 0625 53.2   0.2 67 97   2 27   3 2.3 13.6   0.2 1856 0.00 0.11 - - 60
Sanchietti Ranch 7/31/26 89.8   2.1 1556 45.5   2.2 0610 53.5   0.4 - 94   0 31   4 2.9 14.4   1.2 1825 0.00 0.00 - - 60
Occidental Rd (Sebastopol) 7/31/26 90.6   1.0 1602 44.8   2.2 0559 53.2   0.5 72 100   0 24   3 1.9 12.3   0.4 1502 0.00 0.00 - - 10
Harper's Rest (Windsor-West) 7/31/26 93.0   2.3 1618 47.2   1.4 0626 51.2   0.3 - 96   1 22   1 1.8 11.1   2.5 1720 0.00 0.02 - - 0
Lower Westside Rd (Ranch 12) 7/31/26 91.9   2.0 1600 46.4   1.2 0644 51.2   0.2 61 95   0 24   1 1.7 12.6   0.9 1514 0.00 0.02 - - 20
Guerneville (Laughlin Rd) 7/31/26 91.3   2.2 1636 47.5   0.2 0631 51.0   0.7 60 92   1 24   1 1.8 11.8   1.3 1553 0.00 0.01 - - 60
Korbel (Winery) 7/31/26 92.6   1.5 1740 49.1   0.6 0620 52.3   0.4 59 94   1 20   3 0.6 10.3   4.7 1441 0.00 0.00 - - 50
Forestville (Shone Farms) 7/31/26 94.1   2.2 1545 49.2   1.3 0426 52.7   0.1 61 92   1 24   2 1.7 11.8   1.0 1507 0.00 0.03 0.218   0.003 648   17 20
Forestville-NE (Ranch 30) 7/31/26 94.7   1.6 1615 46.5   0.2 0647 53.6   0.5 65 98   0 28   0 2.4 13.2   5.3 1543 0.00 0.01 0.233   0.003 658   16 0
Foggy Bend (Ranch 41) 7/31/26 93.6   1.0 1608 47.6   1.3 0551 55.4   0.5 67 96   0 34   1 1.5 10.5   0.7 1619 0.00 0.01 0.219   0.000 659   15 20
Last Stop 7/31/26 96.5   0.5 1615 45.7   1.2 0550 53.3   0.6 65 98   0 21   1 1.9 11.0   0.8 1534 0.00 0.00 0.223   0.003 643   22 0
Green Valley Vineyard 7/31/26 93.6   1.3 1630 47.9   1.0 0602 51.9   0.7 63 97   1 18   3 2.0 12.5   0.2 1611 0.00 0.02 0.067   0.013 79   27 20
Park Royal 7/31/26 89.8   2.1 1442 47.0   1.6 0536 49.6   0.1 58 90   3 23   1 - - - 0.00 0.00 - - 60
Merino 7/31/26 92.5   2.7 1548 42.0   3.3 0625 52.2   0.1 68 100   0 28   2 2.0 11.8   1.6 1405 0.00 0.00 0.229   0.003 678   19 60
Green Valley (Sanchietti) 7/31/26 95.4   1.8 1606 41.4   1.5 0621 - - - - - - - - - - - 0
Keefer Ranch (Green Valley) 7/31/26 91.4   0.1 1610 44.1   1.9 0625 53.0   0.6 67 97   0 26   4 - - - 0.00 0.01 - - 20
Graton-West (Dutton Ranch) 7/31/26 92.6   0.6 1806 44.6   1.8 0626 53.2   0.2 69 100   0 21   1 1.6 10.8   0.1 1621 0.00 0.04 - - 20
Graton-South (Mill Station Rd) 7/31/26 88.0   1.0 1553 43.0   2.0 0631 50.6   0.1 65 96   0 28   1 0.8 7.7   0.1 1650 0.00 0.01 - - 50
Occidental (Horseshoe Bend) 7/31/26 87.2   1.2 1551 51.9   1.0 0440 52.9   1.8 - 94   2 30   8 - - - 0.00 0.04 - - 70
Sexton Valley (Jacqueline's Blk) 7/31/26 88.7   1.4 1539 44.6   1.3 0621 53.3   0.2 69 99   0 33   1 1.0 10.3   0.9 1203 0.00 0.04 - - 50
Sebastopol Hills (Burnside Rd) 7/31/26 85.1   1.1 1739 50.7   1.4 0632 53.9   0.4 69 97   1 31   1 2.1 12.4   1.7 1615 0.00 0.00 - - 100
Pleasant Hill 7/31/26 89.6   2.4 1537 46.7   0.5 0543 51.4   0.4 - 97   0 24   3 1.9 11.5   0.5 1352 0.00 0.01 - - 60
Seaview/Fort Ross (Hirsch) 7/31/26 88.2   2.7 1543 62.2   2.5 0710 46.7   1.2 42 66   8 23   1 4.1 14.5   1.3 0102 0.00 0.05 0.245   0.011 700   16 90
Max   96.8 - 62.2 - 55.4 72 100 34 4.1 17.5 - 0.00 0.11 0.245 705 -
Avg   - - - - 50.8 62 - - 1.9 - - - - - - -
Min   85.1 - 41.4 - 11.4 32 66 0 0.0 6.5 - 0.00 0.00 0.043 0 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 8/1/26 4:24 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 7/31/26 90.6   3.2 1505 55.0   0.4 0559 48.3   1.4 74   6 20   1 2.0   0.2 9.4   0.2 1416 S | 181 0.00 0.01 0.178   0.004 506   12 70   10
Lower Bennett Valley 7/31/26 90.1   3.1 1424 41.3   2.5 0621 50.1   1.4 100   0 26   2 3.1   0.2 12.8   1.5 1705 SSW | 200 0.00 0.00 0.233   0.000 652   16 60   10
Kenwood (Wildwood) 7/31/26 95.2   3.4 1451 46.1   2.7 0613 51.0   2.0 96   4 19   6 2.1   0.4 12.7   2.6 1524 NNW | 342 0.00 0.00 0.228   0.007 657   21 50   10
Sonoma Valley (Bedrock) 7/31/26 93.7   0.6 1754 45.8   1.1 0639 50.4   2.0 93   3 22   11 - - - - 0.00 0.00 - - 20   10
Sonoma-West (Arnold) 7/31/26 94.8   4.5 1531 46.5   0.2 0417 50.4   1.2 92   0 22   2 2.9   0.3 15.0   3.6 1621 SW | 231 0.00 0.00 0.267   0.003 755   16 60   10
Sonoma Valley HS 7/31/26 92.6   5.2 1557 49.2   1.8 0610 55.5   1.5 100   0 30   5 2.3   0.0 10.0   0.9 1942 ESE | 110 0.00 0.00 0.228   0.003 685   13 60   10
Sonoma East (Bundschu01) 7/31/26 87.5   0.3 1522 46.6   1.9 0605 52.6   1.6 94   1 30   11 3.7   0.1 15.6   0.0 1829 SE | 146 0.00 0.00 0.237   0.006 682   9 80   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) 7/31/26 88.2   0.5 1522 46.4   1.7 0606 52.9   1.6 94   2 30   11 2.6   0.3 11.5   3.4 1830 ESE | 108 0.00 0.00 - - 90   10
Ricci Vineyards (Carneros) 7/31/26 86.6   0.2 1510 47.0   2.3 0627 53.0   1.0 95   1 31   7 3.8   0.4 14.9   0.7 1624 SSE | 153 0.00 0.01 0.229   0.008 664   4 100   0
Carneros (Ranch 71) 7/31/26 84.9   0.3 1546 54.5   0.6 0644 54.6   2.1 92   4 32   8 2.7   0.4 10.7   5.0 1628 SSW | 194 0.00 0.00 0.218   0.006 691   5 100   0
Carneros Upper (Ranch 81) 7/31/26 86.7   3.1 1455 55.1   0.1 0538 54.3   1.0 - - 4.0   0.5 15.9   2.9 1820 S | 191 - - - - 90   10
Carneros Lower (Ranch 81) 7/31/26 86.5   4.2 1436 50.1   0.2 0634 52.5   0.1 100   0 0   0 2.1   0.1 12.1   1.0 1629 SSE | 155 0.00 0.00 0.209   0.004 646   6 100   0
Rohnert Park-West (Stony Point) 7/31/26 85.1   2.7 1226 41.5   3.6 0628 51.4   0.5 96   0 35   1 1.9   0.1 16.0   2.6 1441 SSW | 209 0.00 0.00 - - 100   0
Cartograph Wines Base 7/31/26 82.7   2.8 1537 49.7   0.1 0608 53.7   0.2 96   0 38   2 3.4   0.1 19.5   1.3 1436 S | 178 0.00 0.02 0.217   0.009 672   9 100   0
Cartograph Wines Remote 7/31/26 85.4   2.9 1210 46.3   1.2 0605 - - - - - - - - - - - 100   0
Rice-Spivak Vineyard 7/31/26 86.6   3.3 1550 38.7   2.0 0606 - - - - - - - - - - - 100   0
Penngrove (Asellus) 7/31/26 90.3   5.1 1310 43.5   2.5 0629 49.6   0.2 97   0 23   0 2.1   0.4 12.2   1.7 1311 W | 269 0.00 0.00 - - 90   10
Petaluma (Ranch 10) 7/31/26 90.2   3.2 1423 44.7   2.4 0613 50.1   0.6 96   0 26   3 1.6   0.4 11.3   1.4 1548 N | 352 0.00 0.00 0.219   0.003 663   11 60   10
Max   95.2 - 55.1 - 55.5 100 38 4.0 19.5 - - 0.00 0.02 0.267 755 -
Avg   - - - - 51.9 - - 2.7 - - - - - - - -
Min   82.7 - 38.7 - 48.3 74 0 1.6 9.4 - - 0.00 0.00 0.178 506 -