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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 6/1/26 11:11 AM PDT
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) 5/31/26 82.7   6.8 1459 44.5   0.5 0433 42.6   0.1 51   16 89   11 21   10 8.6   0.2 23.2   4.4 0159 NW | 321 0.00 42.48 0.259   0.033 740   11 40   20
Rockpile Lower (Cooley) 5/31/26 85.2   6.1 1359 48.6   1.8 0315 43.4   0.5 48   14 82   16 16   9 4.0   0.6 17.0   5.6 1614 WNW | 293 0.00 41.80 - - 40   20
Cloverdale-East (Ranch 83) 5/31/26 87.8   4.7 1559 52.8   3.9 0526 49.0   2.4 - - - 3.3   0.7 13.7   1.6 0555 NNE | 26 0.00 35.51 0.233   0.015 693   2 90   10
Cloverdale-SE (Ranch 38) 5/31/26 87.9   5.1 1444 52.4   3.6 0524 48.0   0.1 51   12 79   18 24   3 6.4   1.5 21.0   4.7 0601 N | 350 0.00 37.12 0.241   0.025 667   1 60   20
Geyserville-North (Hoffman) 5/31/26 88.5   7.3 1652 52.0   0.2 0550 51.4   0.8 58   4 91   1 29   3 2.6   0.5 12.4   0.9 1545 SSE | 164 0.00 25.50 0.209   0.013 615   22 80   10
Geyserville (Ranch 3) 5/31/26 88.5   7.4 1701 52.6   0.1 0405 49.6   0.5 54   6 87   8 24   2 3.0   0.3 14.1   0.8 1540 ESE | 107 0.00 36.33 0.238   0.015 724   25 90   10
Geyserville-East (Ranch 40) 5/31/26 84.6   5.7 1458 49.1   1.3 0538 49.8   0.1 56   12 88   11 32   2 4.6   0.5 20.5   1.5 1436 SSW | 205 0.00 37.19 0.245   0.034 704   38 40   20
Geyserville-South (Nervo Station) 5/31/26 85.6   5.7 1709 51.9   0.1 0614 - - - - 2.8   0.7 12.5   7.4 1409 SSE | 153 0.00 27.24 - - 60   20
Peterson (Ranch 09) 5/31/26 84.5   5.5 1447 51.1   1.6 0547 48.0   0.2 54   6 84   6 27   1 3.5   0.0 12.9   2.2 1507 SE | 141 0.00 34.02 0.222   0.018 673   24 40   10
Crazy Creek Ranch 5/31/26 85.3   5.2 1449 46.7   4.0 0538 51.1   0.1 64   4 96   2 32   2 2.1   0.5 12.2   0.1 1550 S | 182 0.00 37.50 0.228   0.027 703   49 60   20
Whitton Ranch (201e) 5/31/26 86.2   4.9 1539 49.2   3.5 0616 49.9   0.5 58   3 94   0 26   3 2.8   0.2 12.6   1.4 1620 SE | 129 0.00 38.45 0.218   0.016 645   18 80   10
Lytton East (Shop Hill Bottom) 5/31/26 84.6   6.0 1659 49.4   2.9 0606 48.4   0.1 55   7 88   6 24   0 2.8   0.5 13.4   0.8 1439 SE | 128 0.00 39.27 0.231   0.013 703   10 60   20
Lytton East (Hill 5) 5/31/26 84.8   5.7 1529 50.2   1.8 0613 48.1   0.0 53   8 82   13 25   0 3.9   1.1 16.8   2.4 1624 S | 175 0.00 38.71 0.226   0.011 639   6 40   20
Lytton West Lower (Lew 6) 5/31/26 85.2   6.6 1535 50.5   1.9 0618 48.6   0.2 54   7 92   2 25   1 3.0   0.5 14.4   1.2 1420 SSE | 152 0.00 39.17 0.217   0.014 616   7 60   20
Lytton West Hill (23PS) 5/31/26 86.0   7.5 1654 52.3   0.2 0618 48.5   0.1 52   8 79   17 24   0 3.1   0.5 14.3   1.2 1443 S | 174 0.00 40.91 0.223   0.011 640   8 60   20
Big River 5/31/26 83.4   5.3 1458 50.6   1.7 0547 50.0   0.3 58   8 87   10 30   2 2.7   0.1 13.0   2.2 1449 SSW | 192 0.00 35.87 0.241   0.024 739   21 40   20
Jimtown-North (Piccolo Ranch 15) 5/31/26 85.7   5.1 1658 46.9   4.8 0608 47.8   0.5 58   3 100   4 24   3 1.6   0.5 13.8   3.7 1516 S | 191 0.00 35.25 0.199   0.018 625   40 60   20
HWY 128/Chalk Hill Rd (Landslide) 5/31/26 85.0   4.9 1341 46.7   3.4 0413 49.8   0.3 63   3 95   1 26   4 2.3   0.1 15.5   2.9 1548 S | 190 0.00 35.17 0.207   0.023 616   35 60   20
N Chalk Hill Rd (Ranch 63) 5/31/26 84.0   5.9 1559 44.2   5.0 0527 49.0   0.0 62   3 100   8 26   4 2.2   0.4 14.5   1.4 1515 S | 175 0.00 35.99 0.215   0.021 636   33 90   20
Newman Knights Valley 5/31/26 82.7   5.1 1644 43.9   4.2 0536 52.7   0.2 70   3 88   1 50   3 2.4   0.1 16.0   1.9 1433 WSW | 238 0.00 35.40 - - 40   20
Knights Valley (Bavarian Lion) 5/31/26 83.5   5.5 1426 42.3   7.8 0620 48.0   1.5 64   5 97   1 27   5 2.1   0.2 13.9   1.6 1436 W | 260 0.00 35.08 0.220   0.039 692   100 20   20
Red Tail 5/31/26 82.7   5.6 1432 47.6   2.6 0539 50.8   0.4 65   7 89   3 35   3 3.2   0.0 15.9   1.7 1524 SSW | 210 0.00 36.23 0.223   0.028 689   54 40   20
Franz Valley (Stornetta) 5/31/26 83.1   5.6 1631 42.6   5.2 0554 47.8   1.9 - 96   0 27   3 1.6   0.1 12.2   2.5 1359 SSE | 153 0.00 35.65 - - 40   20
Upper Dry Creek Valley 5/31/26 88.5   5.5 1539 51.2   0.5 0456 49.4   1.3 54   3 91   2 22   1 2.5   0.7 15.4   0.1 1618 W | 268 0.00 39.64 0.239   0.007 713   5 90   20
Lower Dry Creek Valley 5/31/26 86.3   7.0 1648 47.8   5.2 0458 49.3   0.8 58   2 100   0 23   1 2.0   1.3 14.7   0.2 1431 ESE | 113 0.00 38.68 0.223   0.006 672   1 30   10
Max   88.5 - 52.8 - 52.7 70 100 50 8.6 23.2 - - 0.00 42.48 0.259 740 -
Avg   - - - - 48.8 57 - - 3.2 - - - - - - - -
Min   82.7 - 42.3 - 42.6 48 79 16 1.6 12.2 - - 0.00 25.50 0.199 615 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 6/1/26 11:11 AM PDT
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) 5/31/26 84.3   4.2 1608 48.7   3.8 0517 50.8   0.9 63 85   1 31   2 0.0 0.0   0.0 0101 0.00 34.62 0.203   0.011 705   25 60
Windsor-East (Ranch 16) 5/31/26 82.3   5.5 1552 45.8   3.5 0548 49.4   1.0 64 96   2 29   2 2.8 13.4   1.5 1444 0.00 27.43 0.235   0.026 717   24 40
Mark West-North (Ranch 14) 5/31/26 81.9   5.9 1558 46.1   4.6 0605 48.9   0.9 62 96   2 28   1 1.9 12.3   1.5 1420 0.00 29.47 0.039   0.010 0   0 60
Windsor-SE (Silk Rd) 5/31/26 83.5   5.6 1634 44.2   4.5 0520 48.8   2.1 65 97   3 24   6 1.9 12.0   3.1 1421 0.00 27.03 0.221   0.026 696   36 40
Fulton-NW (Ranch 5) 5/31/26 81.7   5.8 1529 45.6   4.8 0606 49.7   1.0 66 97   1 30   2 2.9 17.1   1.3 1734 0.00 30.39 0.233   0.024 712   27 20
Bisordi (Fulton) 5/31/26 81.5   5.1 1604 43.8   5.1 0546 51.1   0.9 69 96   3 36   3 2.1 13.8   1.7 1442 0.00 24.77 0.228   0.029 748   56 50
Windsor-South (Laughlin Rd) 5/31/26 85.1   6.0 1630 47.4   4.3 0554 48.8   1.4 62 94   2 24   4 - - - 0.00 28.91 - - 40
Fulton-SE (Barnes Rd) 5/31/26 81.1   5.1 1645 46.3   4.3 0612 49.4   1.2 64 94   1 29   4 2.1 14.5   1.4 1426 0.00 29.04 - - 20
Fulton-SW (Ranch 21) 5/31/26 81.0   5.3 1603 44.8   4.9 0556 49.1   1.1 66 95   1 29   1 3.0 14.2   2.2 1445 0.00 29.63 0.236   0.032 736   61 30
NW Santa Rosa (Piner Road) 5/31/26 80.6   4.7 1539 44.3   5.2 0559 52.0   1.3 75 100   0 37   4 2.0 13.9   4.2 1457 0.00 23.80 - - 30
River Rd South (Denner Ranch) 5/31/26 82.4   5.1 1703 44.0   5.1 0550 9.2   6.9 35 100   0 0   0 3.7 17.5   2.0 1359 - - - - 10
West Santa Rosa (LOV Vineyard) 5/31/26 80.6   4.1 1548 44.9   4.5 0605 49.2   1.4 69 97   2 32   5 2.1 14.7   3.3 1505 0.00 23.43 0.042   0.013 0   0 30
Guerneville Rd (Prokopakis) 5/31/26 84.9   2.8 1825 45.7   4.4 0545 50.5   1.2 66 98   3 30   2 - - - 0.00 28.59 - - 90
SunnyView Vineyard (SCWC) 5/31/26 80.7   5.1 1513 43.6   4.6 0602 48.2   1.6 66 97   3 29   2 2.1 13.7   2.2 1447 0.00 31.16 0.203   0.031 654   67 10
Guerneville Rd West (Balletto) 5/31/26 79.8   3.8 1607 44.5   4.7 0608 50.8   1.4 72 98   2 38   5 2.5 14.4   2.0 1411 0.00 28.72 - - 30
Sanchietti Ranch 5/31/26 80.4   3.7 1629 44.2   4.6 0550 51.0   1.6 - 96   2 34   0 2.9 15.8   0.8 1508 0.00 29.34 - - 20
Occidental Rd (Sebastopol) 5/31/26 80.5   4.3 1614 43.7   4.4 0537 53.3   2.3 79 100   0 35   2 2.3 17.8   3.3 1508 0.00 11.89 - - 30
Harper's Rest (Windsor-West) 5/31/26 83.5   3.9 1444 43.9   3.8 0536 48.2   1.6 - 97   2 24   1 1.9 11.7   1.5 1727 0.00 35.13 - - 40
Lower Westside Rd (Ranch 12) 5/31/26 84.4   5.9 1439 44.9   4.9 0545 48.0   1.9 63 98   2 22   2 2.0 14.4   2.7 1534 0.00 33.79 - - 40
Guerneville (Laughlin Rd) 5/31/26 82.1   5.4 1456 45.3   3.0 0421 48.2   2.1 64 97   2 22   8 1.8 14.1   1.0 1522 0.00 44.81 - - 40
Korbel (Winery) 5/31/26 81.9   5.1 1228 47.3   3.1 0541 48.8   1.4 64 97   3 22   3 1.4 14.7   0.8 1427 0.00 42.00 - - 50
Forestville (Shone Farms) 5/31/26 85.1   5.6 1624 46.9   4.4 0527 49.2   1.5 63 96   0 23   1 2.1 12.9   1.1 1358 0.00 36.08 0.222   0.027 696   42 40
Forestville-NE (Ranch 30) 5/31/26 83.9   5.5 1620 46.0   3.3 0554 50.5   1.2 68 99   2 27   2 2.5 14.8   1.3 1319 0.00 33.95 0.232   0.027 716   26 80
Foggy Bend (Ranch 41) 5/31/26 82.9   5.7 1437 46.6   4.1 0614 51.9   0.8 69 96   2 34   1 2.5 17.0   3.8 1736 0.00 35.26 0.229   0.028 722   25 40
Last Stop 5/31/26 82.7   3.8 1537 42.9   3.9 0546 49.8   1.4 68 99   3 27   3 2.0 13.5   1.7 1405 0.00 34.24 0.218   0.027 703   46 40
Green Valley Vineyard 5/31/26 81.3   4.5 1552 44.9   3.6 0559 48.6   1.3 65 97   1 26   7 2.2 14.2   0.2 1503 0.00 41.77 0.043   0.002 1   49 50
Park Royal 5/31/26 80.3   4.5 1514 44.3   4.8 0518 47.4   1.9 64 93   1 26   2 - - - 0.00 17.10 - - 30
Merino 5/31/26 81.8   4.3 1602 40.2   5.0 0549 50.0   2.1 73 100   2 33   1 2.1 11.7   1.6 1345 0.00 30.08 0.224   0.034 739   91 30
Green Valley (Sanchietti) 5/31/26 84.3   5.0 1607 42.6   6.4 0542 - - - - - - - - - - - 40
Keefer Ranch (Green Valley) 5/31/26 81.7   4.9 1611 42.9   5.3 0526 49.8   1.6 69 98   2 31   1 - - - 0.00 37.19 - - 60
Graton-West (Dutton Ranch) 5/31/26 83.0   5.4 1602 43.3   5.0 0552 50.7   3.1 71 100   0 24   3 1.8 12.2   1.8 1328 0.00 45.44 - - 60
Graton-South (Mill Station Rd) 5/31/26 76.4   2.4 1615 42.9   6.3 0554 49.2   1.5 71 98   1 39   8 1.2 9.5   1.0 1418 0.00 34.59 - - 30
Occidental (Horseshoe Bend) 5/31/26 78.0   4.9 1613 47.2   2.4 0523 49.3   0.7 - 94   6 23   8 - - - 0.00 37.58 - - 0
Sexton Valley (Jacqueline's Blk) 5/31/26 75.6   1.7 1207 43.4   4.4 0606 50.8   1.3 75 100   2 47   8 1.3 12.3   1.0 1602 0.00 23.05 - - 30
Sebastopol Hills (Burnside Rd) 5/31/26 72.7   1.3 1459 49.3   1.1 0555 50.8   0.7 73 91   9 50   11 2.9 13.9   0.7 1412 0.00 33.82 - - 0
Pleasant Hill 5/31/26 78.8   3.6 1509 44.3   3.4 0550 48.8   1.7 - 98   1 34   1 2.1 13.1   0.2 1505 0.00 31.82 - - 40
Seaview/Fort Ross (Hirsch) 5/31/26 76.0   6.5 1754 48.9   2.6 0522 43.9   2.0 51 82   16 21   15 2.9 10.5   1.1 1835 0.00 53.98 0.220   0.019 754   4 0
Max   85.1 - 49.3 - 53.3 79 100 50 3.7 17.8 - 0.00 53.98 0.236 754 -
Avg   - - - - 48.5 66 - - 2.2 - - - - - - -
Min   72.7 - 40.2 - 9.2 35 82 0 0.0 0.0 - 0.00 11.89 0.039 0 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 6/1/26 11:11 AM PDT
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 5/31/26 79.2   6.8 1529 47.1   2.0 0559 48.0   0.6 93   5 34   0 2.4   0.4 10.6   0.3 1452 SSE | 161 0.00 6.09 0.167   0.026 513   34 10   10
Lower Bennett Valley 5/31/26 79.3   7.0 1322 39.9   4.4 0527 47.9   2.8 100   0 23   20 2.3   0.6 16.8   2.8 1519 SW | 228 0.00 28.00 0.216   0.041 693   77 20   20
Kenwood (Wildwood) 5/31/26 82.8   6.7 1356 45.8   4.4 0520 49.3   0.6 96   4 32   3 2.8   0.4 17.9   2.8 1443 NNW | 343 0.00 32.85 0.215   0.037 687   86 20   20
Sonoma Valley (Bedrock) 5/31/26 83.7   6.5 1446 42.8   5.7 0504 46.8   1.3 96   2 27   1 - - - - 0.00 28.95 - - 40   20
Sonoma-West (Arnold) 5/31/26 85.0   7.9 1405 41.8   4.0 0605 46.6   2.3 97   4 21   6 2.6   0.2 17.8   1.0 1558 W | 274 0.00 18.30 0.265   0.053 800   104 60   20
Sonoma Valley HS 5/31/26 84.2   8.0 1417 44.9   5.0 0546 50.4   1.0 100   3 28   12 1.8   0.7 9.6   4.8 1750 W | 266 0.00 6.91 0.225   0.047 724   115 40   20
Sonoma East (Bundschu01) 5/31/26 85.2   8.2 1448 43.4   7.1 0605 47.2   1.7 95   2 23   10 3.0   0.2 21.7   5.5 1421 N | 353 0.00 21.65 0.242   0.052 728   105 60   20
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) 5/31/26 85.8   7.8 1439 42.5   8.7 0521 47.4   1.8 94   2 23   11 2.4   0.3 15.5   1.0 1702 WSW | 244 0.00 18.67 - - 40   20
Ricci Vineyards (Carneros) 5/31/26 84.1   6.5 1459 43.8   4.3 0429 47.8   1.4 94   0 30   4 4.3   0.2 19.8   3.0 1726 W | 266 0.00 23.15 0.253   0.058 744   118 10   10
Carneros (Ranch 71) 5/31/26 83.3   7.2 1500 49.7   1.4 0430 47.9   1.3 86   10 29   8 4.1   0.3 23.1   0.6 1706 W | 264 0.00 19.98 0.251   0.062 739   123 30   20
Carneros Upper (Ranch 81) 5/31/26 83.4   7.5 1515 51.1   0.4 0455 47.9   10.0 - - 5.1   0.5 25.1   3.3 1824 W | 260 - - - - 30   20
Carneros Lower (Ranch 81) 5/31/26 86.7   6.9 1550 44.9   4.0 0452 47.3   3.2 100   6 0   33 1.4   0.2 12.8   0.1 1509 S | 174 0.00 19.55 0.194   0.036 632   91 30   20
Rohnert Park-West (Stony Point) 5/31/26 75.0   4.5 1219 40.3   5.8 0552 49.4   1.9 98   1 48   2 2.3   0.1 15.9   1.2 1415 SW | 235 0.00 12.31 - - 20   20
Cartograph Wines Base 5/31/26 72.0   3.0 1126 46.4   3.6 0556 50.7   0.8 96   3 53   1 4.0   0.0 22.1   1.8 1441 S | 186 0.00 28.86 0.192   0.033 718   110 0   0
Cartograph Wines Remote 5/31/26 75.7   4.6 1209 44.2   3.3 0557 - - - - - - - - - - - 0   0
Rice-Spivak Vineyard 5/31/26 77.1   4.9 1117 36.4   3.9 0508 - - - - - - - - - - - 20   20
Penngrove (Asellus) 5/31/26 80.5   8.1 1249 40.7   4.2 0517 47.4   1.8 98   3 36   4 2.0   0.6 13.6   0.8 1335 W | 267 0.00 68.31 - - 30   20
Petaluma (Ranch 10) 5/31/26 82.4   6.9 1321 41.2   5.1 0553 47.7   1.4 100   7 34   4 2.4   0.2 13.1   0.6 1549 NNW | 333 0.00 19.96 0.225   0.052 712   137 20   20
Max   86.7 - 51.1 - 50.7 100 53 5.1 25.1 - - 0.00 68.31 0.265 800 -
Avg   - - - - 48.1 - - 2.9 - - - - - - - -
Min   72.0 - 36.4 - 46.6 86 0 1.4 9.6 - - 0.00 6.09 0.167 513 -