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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 5/22/26 5:00 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) 5/21/26 88.2   1.8 1507 64.9   5.5 0620 38.5   0.3 28   2 46   2 14   3 4.6   1.0 18.6   0.4 1608 SSW | 204 0.00 42.13 0.283   0.000 738   17 80   10
Rockpile Lower (Cooley) 5/21/26 91.7   2.2 1520 62.1   3.4 0540 40.6   1.6 32   1 50   1 12   3 2.5   0.8 16.6   0.5 1541 W | 266 0.00 41.49 - - 80   10
Cloverdale-East (Ranch 83) 5/21/26 92.6   1.0 1527 48.2   6.8 0545 46.7   3.1 - - - 2.3   1.1 14.9   1.9 1618 S | 184 0.00 35.00 0.242   0.002 676   24 60   10
Cloverdale-SE (Ranch 38) 5/21/26 91.6   1.4 1450 53.8   5.2 0615 47.4   3.2 48   11 77   15 17   0 4.5   1.5 19.7   0.0 1640 E | 98 0.00 36.51 0.259   0.013 652   6 70   10
Geyserville-North (Hoffman) 5/21/26 92.1   1.0 1459 47.1   0.8 0552 49.3   1.5 57   4 94   4 19   1 2.6   0.4 13.6   1.1 1802 ESE | 109 0.00 25.50 0.226   0.003 605   5 60   10
Geyserville (Ranch 3) 5/21/26 90.5   0.2 1634 49.9   0.5 0625 47.4   1.6 53   5 89   4 16   2 2.5   0.3 13.6   0.2 1805 SE | 124 0.00 35.88 0.247   0.003 702   12 60   10
Geyserville-East (Ranch 40) 5/21/26 90.7   2.1 1508 52.5   4.1 0057 48.1   3.1 52   11 82   20 18   3 4.6   0.3 21.9   3.8 1636 S | 182 0.00 36.80 0.261   0.001 689   9 70   10
Geyserville-South (Nervo Station) 5/21/26 90.0   1.2 1446 50.9   1.0 0606 - - - - 2.4   0.1 14.2   2.0 1625 SE | 137 0.00 27.02 - - 60   10
Peterson (Ranch 09) 5/21/26 89.9   1.9 1528 48.3   0.9 0601 46.2   1.6 55   6 90   4 13   2 2.7   0.4 13.9   1.2 1654 SSE | 161 0.00 33.60 0.228   0.002 664   10 20   10
Crazy Creek Ranch 5/21/26 90.5   1.5 1551 47.3   0.1 0602 49.4   1.2 61   6 98   9 18   3 1.9   0.1 12.9   1.6 1656 S | 178 0.00 37.11 0.232   0.002 691   7 70   10
Whitton Ranch (201e) 5/21/26 90.9   1.3 1558 42.2   0.6 0603 47.4   1.5 60   3 100   2 15   3 2.1   0.1 12.0   0.2 1653 SSE | 161 0.00 37.97 0.220   0.002 634   1 60   10
Lytton East (Shop Hill Bottom) 5/21/26 89.2   1.3 1511 45.1   0.0 0613 46.9   1.5 59   7 95   5 14   3 2.8   0.0 17.0   1.3 1358 SSE | 166 0.00 38.76 0.241   0.002 690   10 70   10
Lytton East (Hill 5) 5/21/26 89.9   1.4 1509 48.8   2.2 0058 47.4   2.0 57   10 91   16 14   3 3.8   0.0 17.4   0.4 1612 S | 180 0.00 38.22 0.235   0.004 623   10 70   10
Lytton West Lower (Lew 6) 5/21/26 90.0   1.0 1422 44.2   0.5 0544 46.8   1.1 60   5 100   5 12   4 2.5   0.1 15.2   1.3 1536 S | 171 0.00 38.65 0.222   0.000 606   6 60   10
Lytton West Hill (23PS) 5/21/26 89.7   0.4 1621 49.7   1.0 0059 47.3   1.8 58   10 92   10 11   5 3.4   0.7 15.0   0.8 1836 S | 190 0.00 40.37 0.241   0.003 654   6 60   10
Big River 5/21/26 89.7   2.2 1503 49.0   1.1 0617 48.6   1.2 59   8 97   12 18   4 2.5   0.0 15.6   0.1 1812 S | 177 0.00 35.49 0.248   0.003 730   14 70   10
Jimtown-North (Piccolo Ranch 15) 5/21/26 90.5   1.3 1521 45.5   0.3 0609 45.7   1.4 55   5 100   14 13   4 1.4   0.1 11.8   0.2 1553 S | 181 0.00 34.87 0.207   0.001 629   7 70   10
HWY 128/Chalk Hill Rd (Landslide) 5/21/26 91.0   1.5 1422 45.9   0.8 0549 47.3   0.0 58   1 96   2 14   4 2.0   0.2 11.3   1.6 1721 SSW | 196 0.00 34.74 0.214   0.003 604   10 70   10
N Chalk Hill Rd (Ranch 63) 5/21/26 89.0   1.5 1448 44.7   0.6 0609 46.4   0.1 57   0 98   0 15   4 2.1   0.3 13.9   2.2 1638 S | 186 0.00 35.63 0.221   0.004 624   8 70   10
Newman Knights Valley 5/21/26 89.1   2.1 1600 45.4   1.3 0546 53.5   0.9 67   1 88   2 41   2 2.1   0.2 11.2   2.3 1610 SSW | 211 0.00 35.05 - - 70   10
Knights Valley (Bavarian Lion) 5/21/26 88.7   1.9 1636 44.1   0.9 0605 46.8   0.9 60   2 97   2 12   6 1.8   0.3 11.7   2.4 1607 WNW | 300 0.00 34.74 0.227   0.000 686   8 80   10
Red Tail 5/21/26 87.8   1.4 1520 45.5   0.8 0606 48.8   0.9 62   5 93   7 18   5 2.7   0.1 13.8   2.3 1443 S | 186 0.00 35.82 0.233   0.003 680   11 70   10
Franz Valley (Stornetta) 5/21/26 89.3   1.4 1620 44.3   0.7 0609 46.0   1.2 - 94   2 13   3 1.4   0.3 10.4   0.8 1603 WNW | 287 0.00 35.29 - - 80   10
Upper Dry Creek Valley 5/21/26 94.5   2.7 1630 46.9   0.3 0540 47.5   1.9 55   5 95   4 12   0 2.7   0.5 12.9   0.3 1543 E | 84 0.00 39.08 0.251   0.004 704   13 70   10
Lower Dry Creek Valley 5/21/26 91.0   0.6 1633 46.9   0.4 0559 47.1   1.2 58   6 100   10 11   4 2.9   0.7 15.2   2.3 1827 SE | 132 0.00 38.16 0.233   0.003 642   10 70   10
Max   94.5 - 64.9 - 53.5 67 100 41 4.6 21.9 - - 0.00 42.13 0.283 738 -
Avg   - - - - 47.0 55 - - 2.7 - - - - - - - -
Min   87.8 - 42.2 - 38.5 28 46 11 1.4 10.4 - - 0.00 25.50 0.207 604 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 5/22/26 5:00 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) 5/21/26 89.5   1.0 1526 48.4   1.7 0056 50.0   0.4 64 84   0 21   3 0.3 12.9   2.0 1859 0.00 34.10 0.208   0.004 697   13 50
Windsor-East (Ranch 16) 5/21/26 87.5   0.8 1500 44.5   0.7 0604 46.5   0.3 62 96   3 16   3 3.0 13.2   0.4 1732 0.00 27.00 0.239   0.001 704   17 70
Mark West-North (Ranch 14) 5/21/26 85.6   0.3 1437 46.9   0.9 0555 46.9   1.0 61 93   6 16   2 2.2 11.6   0.0 1710 0.00 29.03 0.043   0.001 0   0 60
Windsor-SE (Silk Rd) 5/21/26 86.6   0.9 1505 44.0   1.0 0557 47.8   0.1 66 96   1 17   2 2.0 11.4   0.8 1749 0.00 26.47 0.221   0.000 688   10 70
Fulton-NW (Ranch 5) 5/21/26 86.3   0.8 1429 45.1   1.1 0553 47.8   0.6 66 95   2 19   2 2.8 14.4   0.6 1600 0.00 29.89 0.232   0.002 697   18 90
Bisordi (Fulton) 5/21/26 85.9   0.2 1454 44.8   0.6 0522 48.9   0.1 67 96   1 21   5 2.1 13.2   0.3 1606 0.00 24.35 0.225   0.002 717   21 90
Windsor-South (Laughlin Rd) 5/21/26 88.5   0.0 1421 46.3   1.2 0534 47.9   0.4 64 94   0 18   1 - - - 0.00 28.55 - - 60
Fulton-SE (Barnes Rd) 5/21/26 87.0   0.8 1503 46.7   1.2 0517 48.1   1.5 63 93   5 22   3 2.5 13.2   0.3 1727 0.00 28.57 - - 60
Fulton-SW (Ranch 21) 5/21/26 84.7   0.2 1437 44.8   1.7 0553 48.0   0.4 68 95   5 22   2 3.1 15.3   0.8 1717 0.00 29.17 0.236   0.003 726   15 100
NW Santa Rosa (Piner Road) 5/21/26 84.6   0.3 1411 44.0   1.2 0549 50.5   0.0 75 100   0 26   2 2.1 12.2   1.7 1705 0.00 23.80 - - 100
River Rd South (Denner Ranch) 5/21/26 84.0   0.7 1328 43.6   0.8 0600 -1.0   22.5 29 100   0 0   0 4.2 19.1   0.4 1720 - - - - 100
West Santa Rosa (LOV Vineyard) 5/21/26 83.5   0.1 1329 45.2   1.0 0540 48.4   0.6 70 96   2 26   1 1.8 12.3   2.2 1703 0.00 23.02 0.037   0.008 0   0 100
Guerneville Rd (Prokopakis) 5/21/26 87.8   0.2 1453 45.6   1.0 0559 49.5   0.6 66 98   4 22   0 - - - 0.00 28.14 - - 70
SunnyView Vineyard (SCWC) 5/21/26 84.8   1.1 1410 43.0   0.5 0559 47.1   0.4 68 96   1 18   3 1.8 11.9   1.4 1350 0.00 30.69 0.197   0.003 632   15 100
Guerneville Rd West (Balletto) 5/21/26 83.8   0.9 1326 44.7   1.0 0537 49.8   0.4 72 97   2 31   2 2.4 14.2   1.2 1702 0.00 28.22 - - 100
Sanchietti Ranch 5/21/26 86.7   0.4 1440 43.5   1.2 0539 50.1   0.5 - 95   2 30   2 2.7 13.8   0.7 1725 0.00 28.88 - - 70
Occidental Rd (Sebastopol) 5/21/26 84.2   0.8 1321 43.4   1.6 0538 51.4   0.7 79 100   0 27   2 2.1 16.7   0.9 1728 0.00 11.49 - - 100
Harper's Rest (Windsor-West) 5/21/26 88.9   1.3 1637 44.3   0.6 0543 47.7   1.5 - 97   2 17   0 1.9 10.6   0.4 1721 0.00 34.66 - - 80
Lower Westside Rd (Ranch 12) 5/21/26 89.6   0.8 1505 45.4   0.6 0617 47.4   1.9 64 96   3 15   2 1.8 14.2   0.7 1734 0.00 33.35 - - 60
Guerneville (Laughlin Rd) 5/21/26 88.5   1.4 1330 44.0   0.2 0558 46.7   2.2 61 93   5 23   2 2.0 13.4   0.1 1629 0.00 44.34 - - 60
Korbel (Winery) 5/21/26 88.3   0.4 1333 47.1   0.4 0612 46.7   0.8 58 95   1 17   0 1.0 16.0   1.2 1622 0.00 41.51 - - 90
Forestville (Shone Farms) 5/21/26 90.1   1.6 1452 46.6   1.5 0606 48.4   1.2 63 94   7 18   1 1.9 10.6   2.0 1659 0.00 35.56 0.225   0.001 690   13 70
Forestville-NE (Ranch 30) 5/21/26 88.2   0.6 1536 44.2   1.2 0556 49.6   0.4 68 98   2 26   1 2.4 13.6   1.8 1554 0.00 33.46 0.236   0.001 708   14 60
Foggy Bend (Ranch 41) 5/21/26 89.2   1.1 1535 46.4   0.0 0615 51.1   0.7 68 97   4 31   0 1.9 13.9   0.3 1642 0.00 34.76 0.232   0.001 713   15 70
Last Stop 5/21/26 88.7   2.0 1452 43.2   0.8 0611 50.6   0.9 70 99   2 25   0 1.9 11.9   0.9 1617 0.00 33.76 0.224   0.003 703   18 70
Green Valley Vineyard 5/21/26 87.0   2.9 1441 45.3   2.1 0551 48.2   2.1 66 97   3 15   7 2.0 12.5   0.4 1735 0.00 41.26 0.044   0.002 17   16 90
Park Royal 5/21/26 86.3   0.1 1427 44.4   1.4 0609 46.8   0.9 66 97   7 23   5 - - - 0.00 16.67 - - 100
Merino 5/21/26 85.8   0.3 1426 41.2   1.8 0610 49.7   0.8 75 100   0 28   3 2.2 15.1   2.0 1728 0.00 29.67 0.224   0.002 731   19 100
Green Valley (Sanchietti) 5/21/26 89.0   1.1 1513 42.8   1.1 0602 - - - - - - - - - - - 60
Keefer Ranch (Green Valley) 5/21/26 85.8   2.7 1456 43.0   0.2 0603 49.8   0.5 71 98   0 32   3 - - - 0.00 36.76 - - 100
Graton-West (Dutton Ranch) 5/21/26 86.6   0.1 1456 43.2   0.6 0602 50.5   1.4 73 100   0 24   1 2.1 12.3   0.7 1701 0.00 44.85 - - 100
Graton-South (Mill Station Rd) 5/21/26 78.1   1.2 1246 42.0   1.7 0557 48.9   1.0 75 98   1 38   5 1.2 10.9   1.4 1620 0.00 34.06 - - 100
Occidental (Horseshoe Bend) 5/21/26 77.2   0.8 1412 45.8   3.7 0059 50.2   3.4 - 100   7 43   13 - - - 0.00 37.05 - - 100
Sexton Valley (Jacqueline's Blk) 5/21/26 77.9   1.6 1251 43.7   0.8 0555 51.2   0.8 79 100   1 50   10 1.4 14.8   2.4 1627 0.00 22.49 - - 100
Sebastopol Hills (Burnside Rd) 5/21/26 73.6   1.9 1247 46.6   4.0 0001 51.2   2.3 80 100   10 52   10 3.4 15.3   0.3 1649 0.00 33.45 - - 40
Pleasant Hill 5/21/26 81.6   1.7 1418 43.7   0.9 0555 48.9   1.2 - 98   3 33   8 2.0 13.2   1.7 1634 0.00 31.56 - - 100
Seaview/Fort Ross (Hirsch) 5/21/26 79.4   2.8 1254 64.2   2.0 0606 38.1   0.3 31 45   5 19   1 1.8 10.0   0.4 1502 0.00 53.61 0.225   0.003 741   24 80
Max   90.1 - 64.2 - 51.4 80 100 52 4.2 19.1 - 0.00 53.61 0.239 741 -
Avg   - - - - 47.2 66 - - 2.1 - - - - - - -
Min   73.6 - 41.2 - -1.0 29 45 0 0.3 10.0 - 0.00 11.49 0.037 0 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 5/22/26 5:00 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 5/21/26 85.0   1.3 1505 49.3   5.4 0046 43.4   0.3 85   21 14   7 2.3   0.3 11.4   1.2 1416 SE | 144 0.00 5.84 0.214   0.003 671   3 100   0
Lower Bennett Valley 5/21/26 86.8   1.1 1451 41.0   1.4 0510 46.0   0.3 100   5 19   1 2.1   0.1 11.2   0.3 1343 SW | 220 0.00 27.61 0.227   0.002 685   14 90   10
Kenwood (Wildwood) 5/21/26 88.7   0.9 1457 44.2   0.9 0517 46.6   1.0 96   5 20   0 2.7   0.0 14.2   0.2 1749 NNW | 333 0.00 31.95 0.227   0.006 676   20 70   10
Sonoma Valley (Bedrock) 5/21/26 90.3   2.3 1528 43.4   1.0 0513 42.8   0.3 92   7 11   5 - - - - 0.00 27.98 - - 70   10
Sonoma-West (Arnold) 5/21/26 91.5   0.6 1445 43.1   0.9 0532 44.4   0.1 92   3 13   0 2.4   0.3 14.4   0.1 1727 WSW | 250 0.00 17.88 0.271   0.009 791   23 70   10
Sonoma Valley HS 5/21/26 90.5   1.8 1637 46.2   0.7 0552 49.0   0.9 100   5 19   1 1.9   0.1 9.8   0.4 1814 S | 172 0.00 6.62 0.230   0.002 717   21 70   10
Sonoma East (Bundschu01) 5/21/26 89.9   1.2 1705 44.3   0.8 0612 47.5   3.1 94   6 15   2 2.8   0.3 12.9   1.1 1714 W | 273 0.00 21.64 0.235   0.002 702   21 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) 5/21/26 90.6   1.5 1655 44.1   0.8 0623 48.5   3.0 94   4 18   1 1.7   0.1 10.8   0.3 1812 SSW | 213 0.00 18.49 - - 70   10
Ricci Vineyards (Carneros) 5/21/26 85.9   2.1 1414 43.9   1.2 0548 49.4   2.8 95   3 27   9 3.3   0.2 16.2   0.4 1828 NW | 318 0.00 22.95 0.240   0.005 729   18 80   10
Carneros (Ranch 71) 5/21/26 84.1   1.6 1430 49.5   6.1 0037 50.7   4.3 91   8 28   9 2.7   0.2 16.3   3.2 1825 W | 260 0.00 19.86 0.228   0.003 719   21 100   0
Carneros Upper (Ranch 81) 5/21/26 85.4   2.0 1445 50.8   4.1 0056 50.8   4.3 - - 4.1   0.1 18.9   3.7 1843 WSW | 243 - - - - 100   20
Carneros Lower (Ranch 81) 5/21/26 83.6   2.5 1436 47.8   0.2 0607 51.2   2.4 100   7 0   25 1.7   0.2 10.7   0.7 1452 S | 177 0.00 19.42 0.189   0.004 601   10 100   0
Rohnert Park-West (Stony Point) 5/21/26 78.9   1.7 1246 41.8   0.7 0610 50.1   0.5 97   1 48   12 2.3   0.2 14.8   2.6 1626 WSW | 254 0.00 11.83 - - 90   10
Cartograph Wines Base 5/21/26 74.2   2.4 1231 46.5   2.1 0558 50.9   0.5 99   4 56   12 3.8   0.3 21.8   1.8 1632 S | 191 0.00 28.36 0.186   0.012 704   16 40   10
Cartograph Wines Remote 5/21/26 77.8   2.0 1227 44.0   1.2 0606 - - - - - - - - - - - 70   10
Rice-Spivak Vineyard 5/21/26 78.4   3.8 1238 35.0   1.5 0558 - - - - - - - - - - - 90   10
Penngrove (Asellus) 5/21/26 85.0   1.4 1345 40.6   1.5 0606 47.8   1.1 97   1 29   9 2.3   0.4 12.2   0.3 1718 WSW | 255 0.00 67.81 - - 100   0
Petaluma (Ranch 10) 5/21/26 87.7   0.4 1501 41.4   1.2 0548 47.7   1.1 100   6 26   4 3.1   1.0 14.7   1.5 1803 NW | 317 0.00 19.63 0.230   0.004 701   18 60   10
Max   91.5 - 50.8 - 51.2 100 56 4.1 21.8 - - 0.00 67.81 0.271 791 -
Avg   - - - - 47.9 - - 2.6 - - - - - - - -
Min   74.2 - 35.0 - 42.8 85 0 1.7 9.8 - - 0.00 5.84 0.186 601 -