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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 5/20/26 1:42 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) 5/19/26 83.3   2.1 1501 55.6   0.8 0249 29.4   5.1 24   2 40   5 9   1 8.1   0.6 25.2   9.6 2016 NW | 315 0.00 42.13 0.307   0.002 742   14 100   10
Rockpile Lower (Cooley) 5/19/26 87.1   2.2 1443 56.5   2.1 0414 29.6   5.9 23   4 41   12 9   3 4.5   0.1 18.3   0.0 1606 SW | 221 0.00 41.49 - - 100   20
Cloverdale-East (Ranch 83) 5/19/26 91.1   3.9 1539 54.0   3.1 0650 35.6   6.2 - - - 3.9   0.2 19.4   1.8 1331 SW | 229 0.00 35.00 0.261   0.003 694   19 80   10
Cloverdale-SE (Ranch 38) 5/19/26 90.0   3.2 1553 55.2   0.0 0619 35.9   5.1 29   3 51   4 12   5 7.2   0.3 22.7   1.5 0731 NNW | 327 0.00 36.51 0.289   0.006 662   17 90   10
Geyserville-North (Hoffman) 5/19/26 94.1   2.0 1438 52.7   1.7 0618 38.4   6.2 34   7 58   11 12   5 3.2   0.7 16.3   2.4 1717 W | 279 0.00 25.50 0.237   0.013 618   18 80   10
Geyserville (Ranch 3) 5/19/26 90.9   3.4 1453 53.3   1.0 0550 34.2   7.0 28   6 56   11 9   6 4.0   0.6 14.3   1.1 1556 SW | 234 0.00 35.88 0.267   0.012 709   20 80   10
Geyserville-East (Ranch 40) 5/19/26 91.4   5.6 1515 52.8   2.4 0530 37.2   6.9 31   6 56   13 12   5 3.7   1.4 18.0   10.3 1522 WNW | 282 0.00 36.80 0.258   0.020 699   20 90   10
Geyserville-South (Nervo Station) 5/19/26 91.3   3.7 1536 54.1   1.4 0537 - - - - 2.9   1.5 18.2   0.7 1631 W | 270 0.00 27.02 - - 80   10
Peterson (Ranch 09) 5/19/26 90.0   4.9 1613 52.3   1.3 0303 33.6   9.3 30   9 64   15 8   5 4.0   0.9 15.2   4.1 0835 NNW | 336 0.00 33.60 0.252   0.024 671   20 40   10
Crazy Creek Ranch 5/19/26 89.8   4.7 1530 45.2   8.1 0627 40.5   10.0 44   20 83   22 13   5 2.3   2.1 12.0   13.5 1615 W | 266 0.00 37.11 0.244   0.031 702   23 90   10
Whitton Ranch (201e) 5/19/26 91.0   4.1 1550 44.9   6.8 0312 37.1   8.8 37   13 79   23 9   4 2.8   1.2 13.3   1.8 1431 WNW | 291 0.00 37.97 0.235   0.022 650   19 80   10
Lytton East (Shop Hill Bottom) 5/19/26 90.2   3.4 1438 44.9   10.6 0545 35.4   9.8 35   15 76   33 8   4 2.5   2.3 12.7   9.8 1658 SW | 236 0.00 38.76 0.242   0.039 699   23 90   10
Lytton East (Hill 5) 5/19/26 90.0   3.7 1456 48.8   8.7 0547 35.4   9.7 32   12 65   23 9   5 3.8   2.7 16.4   4.9 1713 WNW | 283 0.00 38.22 0.249   0.040 628   21 90   10
Lytton West Lower (Lew 6) 5/19/26 90.4   3.3 1556 43.9   6.0 0553 36.8   9.4 38   15 82   27 9   5 2.8   1.0 14.4   0.4 1704 SW | 233 0.00 38.65 0.233   0.011 616   18 80   10
Lytton West Hill (23PS) 5/19/26 90.6   3.8 1518 52.3   0.1 0603 35.2   7.5 31   8 63   8 9   4 3.6   1.7 16.3   0.6 1605 S | 190 0.00 40.37 0.252   0.030 662   22 80   10
Big River 5/19/26 89.5   4.2 1508 51.2   5.1 0601 38.2   8.1 34   11 66   20 12   5 2.0   1.0 13.1   5.3 1714 W | 261 0.00 35.49 0.246   0.011 734   24 90   10
Jimtown-North (Piccolo Ranch 15) 5/19/26 90.3   3.0 1536 42.7   7.1 0605 36.8   9.9 41   19 80   13 9   4 2.1   2.2 15.4   5.9 1640 SW | 214 0.00 34.87 0.223   0.037 641   15 90   10
HWY 128/Chalk Hill Rd (Landslide) 5/19/26 92.8   5.4 1455 41.2   6.8 0600 39.3   11.1 48   22 93   12 9   3 2.0   2.4 15.8   10.5 1617 WSW | 252 0.00 34.74 0.218   0.036 610   19 90   10
N Chalk Hill Rd (Ranch 63) 5/19/26 89.7   4.1 1545 41.0   6.3 0550 39.0   11.0 49   24 95   9 10   4 2.0   2.6 15.7   6.5 1643 W | 260 0.00 35.63 0.228   0.036 631   17 90   10
Newman Knights Valley 5/19/26 88.6   4.8 1626 39.1   5.8 0612 49.4   2.1 61   14 86   6 38   3 2.7   3.7 17.6   13.4 1158 N | 1 0.00 35.05 - - 90   10
Knights Valley (Bavarian Lion) 5/19/26 88.9   3.7 1559 39.2   3.8 0604 36.8   13.0 49   24 94   5 7   4 2.7   4.3 15.3   11.4 1343 NNE | 31 0.00 34.74 0.243   0.063 696   23 100   0
Red Tail 5/19/26 90.1   5.3 1428 49.1   0.1 0555 40.7   8.5 40   12 71   3 14   4 3.4   1.0 18.0   8.2 1638 SSW | 206 0.00 35.82 0.246   0.015 688   20 90   10
Franz Valley (Stornetta) 5/19/26 90.5   3.9 1610 38.8   6.0 0617 36.0   11.5 - 92   12 8   4 1.8   1.5 12.3   9.5 1115 ESE | 123 0.00 35.29 - - 100   0
Upper Dry Creek Valley 5/19/26 91.2   2.1 1523 47.7   3.3 0351 36.8   6.9 38   5 80   0 9   4 2.5   0.3 15.4   1.8 1313 W | 278 0.00 39.08 0.254   0.002 713   23 90   10
Lower Dry Creek Valley 5/19/26 91.7   3.2 1457 50.0   1.4 0533 37.7   7.5 38   7 74   8 8   5 3.3   1.6 14.4   2.5 1724 WNW | 294 0.00 38.16 0.246   0.020 664   18 90   10
Max   94.1 - 56.5 - 49.4 61 95 38 8.1 25.2 - - 0.00 42.13 0.307 742 -
Avg   - - - - 36.9 37 - - 3.3 - - - - - - - -
Min   83.3 - 38.8 - 29.4 23 40 7 1.8 12.0 - - 0.00 25.50 0.218 610 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 5/20/26 1:42 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) 5/19/26 90.4   1.3 1446 52.5   6.3 0514 41.9   8.6 40 74   30 14   6 2.5 20.0   3.7 1630 0.00 34.10 0.253   0.012 701   23 70
Windsor-East (Ranch 16) 5/19/26 90.9   3.8 1513 50.5   2.0 0057 36.6   11.0 34 84   19 10   5 4.2 16.0   3.6 1602 0.00 27.00 0.271   0.008 707   22 90
Mark West-North (Ranch 14) 5/19/26 88.6   4.2 1456 52.8   1.7 0355 36.6   11.1 34 70   19 10   4 1.3 10.7   6.1 1554 0.00 29.03 0.040   0.058 0   0 60
Windsor-SE (Silk Rd) 5/19/26 89.3   3.7 1442 42.9   5.4 0556 39.5   12.1 50 95   16 10   6 2.1 16.4   2.8 1627 0.00 26.47 0.243   0.029 699   21 90
Fulton-NW (Ranch 5) 5/19/26 88.5   3.1 1506 45.9   5.5 0431 39.0   11.5 44 86   15 11   5 2.6 15.2   3.9 1647 0.00 29.89 0.254   0.034 706   24 90
Bisordi (Fulton) 5/19/26 88.8   2.6 1509 45.7   4.7 0502 42.3   9.1 48 86   10 14   4 3.0 17.5   1.3 1551 0.00 24.35 0.264   0.028 747   23 90
Windsor-South (Laughlin Rd) 5/19/26 90.4   3.3 1439 49.7   6.9 0405 38.0   10.5 39 77   10 10   6 - - - 0.00 28.55 - - 80
Fulton-SE (Barnes Rd) 5/19/26 90.9   2.1 1453 47.2   7.0 0408 40.1   6.3 41 78   7 12   4 2.7 17.8   0.8 1533 0.00 28.57 - - 80
Fulton-SW (Ranch 21) 5/19/26 90.0   4.0 1456 47.2   5.3 0409 38.8   12.1 43 81   15 11   4 3.3 20.3   1.3 1336 0.00 29.17 0.269   0.037 730   20 90
NW Santa Rosa (Piner Road) 5/19/26 91.8   5.3 1436 44.6   4.4 0521 44.2   9.7 53 100   11 14   5 1.3 12.1   4.0 1505 0.00 23.80 - - 90
River Rd South (Denner Ranch) 5/19/26 90.1   1.9 1444 44.9   5.3 0325 38.4   10.1 45 85   13 9   3 3.6 22.4   4.4 1547 - - - - 100
West Santa Rosa (LOV Vineyard) 5/19/26 88.8   3.1 1454 45.7   5.5 0425 39.0   11.3 46 89   10 9   4 2.2 17.7   3.3 1519 0.00 23.02 0.064   0.072 0   0 90
Guerneville Rd (Prokopakis) 5/19/26 89.2   0.8 1447 44.9   3.7 0556 40.6   10.9 48 92   9 10   5 - - - 0.00 28.14 - - 90
SunnyView Vineyard (SCWC) 5/19/26 89.8   4.5 1428 41.3   4.0 0527 38.6   9.7 48 94   7 9   4 2.7 20.3   4.1 1526 0.00 30.69 0.238   0.011 636   36 100
Guerneville Rd West (Balletto) 5/19/26 89.2   3.0 1414 44.6   2.6 0528 42.5   10.0 52 93   8 13   5 2.9 18.4   0.9 1533 0.00 28.22 - - 90
Sanchietti Ranch 5/19/26 90.0   2.6 1412 42.8   5.1 0533 43.7   6.6 - 93   7 15   5 3.5 18.0   1.5 1605 0.00 28.88 - - 90
Occidental Rd (Sebastopol) 5/19/26 89.0   3.2 1437 44.0   5.2 0530 43.0   9.0 57 100   0 12   3 3.2 20.2   1.1 1554 0.00 11.49 - - 90
Harper's Rest (Windsor-West) 5/19/26 88.8   2.4 1428 44.2   6.4 0537 37.6   9.9 - 83   26 10   5 2.2 12.8   3.6 1637 0.00 34.66 - - 100
Lower Westside Rd (Ranch 12) 5/19/26 89.8   1.4 1424 43.5   6.0 0622 38.2   8.3 47 88   19 8   4 2.0 15.2   3.8 1535 0.00 33.35 - - 80
Guerneville (Laughlin Rd) 5/19/26 90.0   0.9 1259 41.3   3.4 0551 36.7   6.0 47 90   10 7   4 1.6 16.1   0.4 1527 0.00 44.34 - - 80
Korbel (Winery) 5/19/26 90.2   2.6 1316 44.9   2.9 0622 39.3   9.8 50 93   11 8   5 1.4 17.0   0.6 1404 0.00 41.51 - - 80
Forestville (Shone Farms) 5/19/26 90.4   2.9 1413 48.6   4.9 0613 37.0   10.3 38 73   18 9   6 2.2 18.4   2.0 1637 0.00 35.56 0.242   0.027 694   16 90
Forestville-NE (Ranch 30) 5/19/26 89.7   2.9 1313 43.4   3.7 0616 42.1   7.7 50 91   17 13   5 2.1 18.8   2.0 1553 0.00 33.46 0.250   0.013 714   20 80
Foggy Bend (Ranch 41) 5/19/26 88.9   2.5 1344 44.0   2.7 0617 45.4   5.3 53 90   14 20   4 2.6 19.8   4.5 1601 0.00 34.76 0.252   0.022 714   21 90
Last Stop 5/19/26 89.1   3.9 1413 42.1   5.4 0618 41.0   6.4 51 92   10 12   5 2.2 17.5   1.9 1457 0.00 33.76 0.238   0.003 704   22 90
Green Valley Vineyard 5/19/26 87.9   3.0 1356 45.8   7.1 0551 35.8   8.1 38 79   21 9   4 2.8 23.0   3.9 1715 0.00 41.26 0.079   0.006 9   9 100
Park Royal 5/19/26 89.6   3.5 1410 43.3   5.8 0602 37.3   12.0 44 87   9 9   4 - - - 0.00 16.67 - - 90
Merino 5/19/26 89.3   3.6 1457 40.9   4.9 0442 43.5   9.3 56 100   6 14   5 - - 1335 0.00 29.67 0.287   0.025 729   16 90
Green Valley (Sanchietti) 5/19/26 90.6   3.0 1303 40.8   1.4 0605 - - - - - - - - - - - 80
Keefer Ranch (Green Valley) 5/19/26 87.5   2.3 1348 41.3   1.9 0607 42.6   5.0 57 98   8 14   3 - - - 0.00 36.76 - - 90
Graton-West (Dutton Ranch) 5/19/26 89.3   2.9 1316 42.8   1.6 0603 40.3   6.6 54 100   0 9   3 1.9 18.2   1.3 1657 0.00 44.85 - - 90
Graton-South (Mill Station Rd) 5/19/26 87.7   1.4 1402 41.0   0.2 0558 38.5   8.0 49 94   4 9   4 1.1 12.9   0.0 1548 0.00 34.06 - - 90
Occidental (Horseshoe Bend) 5/19/26 84.7   1.4 1402 51.2   4.1 0016 34.1   6.2 - 83   31 11   5 - - - 0.00 37.05 - - 70
Sexton Valley (Jacqueline's Blk) 5/19/26 86.3   0.5 1325 42.2   1.3 0605 43.2   5.5 54 99   5 15   4 2.1 16.3   1.4 1633 0.00 22.49 - - 100
Sebastopol Hills (Burnside Rd) 5/19/26 84.7   0.6 1315 53.9   4.5 0058 39.5   7.4 38 75   33 14   4 3.0 15.9   2.7 1730 0.00 33.45 - - 60
Pleasant Hill 5/19/26 86.6   2.4 1315 49.0   0.3 0309 37.4   8.4 - 82   22 11   5 3.2 15.4   0.3 1555 0.00 31.56 - - 100
Seaview/Fort Ross (Hirsch) 5/19/26 79.7   0.6 1611 63.0   8.4 0546 28.2   1.1 20 27   19 10   0 3.5 13.3   5.1 1501 0.00 53.61 0.257   0.014 735   13 40
Max   91.8 - 63.0 - 45.4 57 100 20 4.2 23.0 - 0.00 53.61 0.287 747 -
Avg   - - - - 39.5 46 - - 2.5 - - - - - - -
Min   79.7 - 40.8 - 28.2 20 27 7 1.1 10.7 - 0.00 11.49 0.040 0 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 5/20/26 1:42 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 5/19/26 85.6   3.2 1555 56.3   0.4 0436 30.3   7.4 47   7 10   5 2.9   0.4 13.2   2.5 1153 S | 175 0.00 5.84 0.237   0.010 677   37 80   20
Lower Bennett Valley 5/19/26 87.7   3.6 1424 38.9   3.5 0604 39.2   10.8 93   4 10   5 2.5   3.0 17.0   11.9 1522 SSW | 213 0.00 27.61 0.246   0.037 689   15 90   10
Kenwood (Wildwood) 5/19/26 88.0   4.5 1508 46.6   4.4 0644 35.6   10.0 73   10 10   5 3.0   1.9 17.0   11.6 1651 N | 11 0.00 31.95 0.236   0.036 681   16 90   10
Sonoma Valley (Bedrock) 5/19/26 88.2   4.0 1519 44.1   10.3 0550 32.2   10.4 72   27 8   4 - - - - 0.00 27.98 - - 90   10
Sonoma-West (Arnold) 5/19/26 90.8   4.0 1411 39.8   7.5 0550 36.1   11.6 88   14 9   4 3.0   2.2 21.3   0.9 1601 W | 265 0.00 17.88 0.293   0.028 798   20 90   10
Sonoma Valley HS 5/19/26 90.0   4.3 1519 45.1   5.8 0615 41.0   10.8 84   14 12   4 2.4   2.5 10.3   12.0 1809 W | 259 0.00 6.62 0.254   0.038 723   22 90   10
Sonoma East (Bundschu01) 5/19/26 89.4   3.7 1507 41.3   6.2 0348 36.0   11.2 85   17 8   4 3.4   4.7 20.6   16.2 1402 NNW | 347 0.00 21.64 0.268   0.068 711   26 90   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) 5/19/26 92.2   5.7 1511 41.2   6.6 0621 37.3   11.9 88   18 9   4 2.4   3.4 17.5   13.4 1613 W | 278 0.00 18.49 - - 90   10
Ricci Vineyards (Carneros) 5/19/26 90.2   5.0 1514 41.0   6.1 0606 38.4   12.7 91   10 8   4 4.2   1.9 20.8   8.0 1614 W | 270 0.00 22.95 0.282   0.028 737   18 100   0
Carneros (Ranch 71) 5/19/26 87.6   4.1 1538 54.8   5.2 0625 35.1   13.2 55   21 9   4 3.9   2.8 23.8   7.8 1655 W | 268 0.00 19.86 0.279   0.037 729   23 90   10
Carneros Upper (Ranch 81) 5/19/26 89.3   5.2 1540 57.1   5.8 0634 33.0   13.8 - - 5.4   4.6 25.7   12.4 1744 WSW | 256 - - - - 90   10
Carneros Lower (Ranch 81) 5/19/26 91.1   5.1 1544 43.0   6.4 0531 39.1   12.1 90   23 9   3 1.6   3.8 13.1   15.8 1349 NNE | 30 0.00 19.42 0.211   0.060 610   14 90   10
Rohnert Park-West (Stony Point) 5/19/26 85.6   0.4 1248 41.4   3.9 0454 44.7   8.7 96   6 16   7 3.0   1.7 18.8   3.1 1549 WSW | 253 0.00 11.83 - - 100   20
Cartograph Wines Base 5/19/26 85.0   0.3 1237 50.4   4.6 0025 43.2   8.3 87   26 16   8 4.9   1.2 21.6   4.9 1638 WSW | 242 0.00 28.36 0.256   0.030 704   20 60   60
Cartograph Wines Remote 5/19/26 89.2   2.7 1247 45.6   1.9 0325 - - - - - - - - - - - 60   20
Rice-Spivak Vineyard 5/19/26 88.0   0.0 1233 34.9   2.9 0503 - - - - - - - - - - - 100   20
Penngrove (Asellus) 5/19/26 89.1   5.0 1327 40.4   4.1 0418 41.8   11.7 95   8 10   5 2.6   4.4 15.1   18.1 1555 W | 278 0.00 67.81 - - 90   10
Petaluma (Ranch 10) 5/19/26 90.4   3.3 1403 41.8   4.9 0624 39.1   10.2 88   6 9   4 2.6   1.8 14.3   14.7 1633 WNW | 289 0.00 19.63 0.253   0.029 707   23 80   10
Max   92.2 - 57.1 - 44.7 96 16 5.4 25.7 - - 0.00 67.81 0.293 798 -
Avg   - - - - 37.6 - - 3.2 - - - - - - - -
Min   85.0 - 34.9 - 30.3 47 8 1.6 10.3 - - 0.00 5.84 0.211 610 -