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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 8/26/26 4:49 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) 8/25/26 89.9   1.6 1552 54.2   3.8 0706 44.9   3.3 46   1 84   15 14   11 5.2   0.1 18.8   2.9 1603 S | 178 0.00 0.05 0.239   0.002 615   20 0   0
Rockpile Lower (Cooley) 8/25/26 92.8   1.7 1614 52.2   2.4 0641 47.4   3.2 54   1 97   12 15   9 2.7   0.5 15.5   2.6 1847 W | 273 0.00 0.02 - - 0   0
Cloverdale-East (Ranch 83) 8/25/26 94.3   1.1 1531 51.0   0.1 0318 50.6   0.8 - - - 2.2   0.6 15.3   0.1 1712 SSE | 168 0.00 0.00 0.207   0.003 578   14 0   0
Cloverdale-SE (Ranch 38) 8/25/26 91.8   1.9 1545 54.8   3.5 0358 52.5   0.6 61   7 97   0 23   2 4.2   1.7 17.1   0.3 1620 N | 11 0.00 0.01 0.216   0.006 538   11 0   0
Geyserville-North (Hoffman) 8/25/26 91.7   3.1 1525 51.8   1.0 0101 54.4   0.6 65   5 94   1 25   3 2.2   0.3 13.6   1.4 1624 SE | 137 0.00 0.00 0.189   0.010 530   8 0   0
Geyserville (Ranch 3) 8/25/26 92.1   2.3 1535 53.4   0.4 0225 52.3   1.0 62   6 100   0 20   2 2.3   0.5 12.5   0.8 1544 E | 97 0.00 0.00 0.193   0.008 528   7 0   0
Geyserville-East (Ranch 40) 8/25/26 90.4   2.5 1528 54.9   3.0 0639 53.7   0.7 67   7 99   1 26   4 5.1   1.0 21.3   1.6 1648 SSW | 205 0.00 0.00 0.217   0.019 558   0 0   0
Geyserville-South (Nervo Station) 8/25/26 90.1   1.9 1520 55.7   1.6 0111 - - - - 2.4   0.2 13.8   2.3 1625 E | 93 0.00 0.00 - - 0   10
Peterson (Ranch 09) 8/25/26 89.7   2.5 1521 52.2   1.4 0207 51.7   0.9 63   5 91   3 22   1 2.5   0.2 12.4   1.8 1704 S | 179 0.00 0.00 0.181   0.008 524   6 0   0
Crazy Creek Ranch 8/25/26 91.7   3.2 1522 51.5   0.5 0208 53.9   0.7 66   5 96   0 24   8 2.0   0.1 13.8   3.4 1631 S | 190 0.00 0.00 0.190   0.006 570   2 0   0
Whitton Ranch (201e) 8/25/26 92.0   1.8 1544 46.8   2.5 0059 52.4   1.1 64   5 100   0 22   2 2.2   0.2 11.6   0.5 1655 SSE | 147 0.00 0.03 0.187   0.009 528   23 0   10
Lytton East (Shop Hill Bottom) 8/25/26 90.0   2.2 1536 52.0   1.7 0140 52.0   1.3 65   5 96   1 18   8 2.9   0.0 14.9   0.0 1636 SE | 138 0.00 0.00 0.202   0.012 566   11 0   10
Lytton East (Hill 5) 8/25/26 89.8   2.7 1515 54.9   0.4 0059 52.5   1.2 66   5 96   1 20   8 4.2   0.2 18.2   0.8 1621 S | 190 0.00 0.00 0.198   0.016 506   7 30   10
Lytton West Lower (Lew 6) 8/25/26 90.8   3.4 1531 51.2   1.4 0118 52.2   1.4 66   5 94   0 19   9 2.9   0.2 15.5   1.0 1646 SSE | 162 0.00 0.01 0.200   0.013 567   7 0   10
Lytton West Hill (23PS) 8/25/26 89.6   2.9 1516 55.3   0.1 0136 52.7   1.8 66   6 97   3 18   12 3.3   0.3 16.5   1.8 1856 SE | 146 0.00 0.01 0.203   0.012 578   16 60   10
Big River 8/25/26 88.2   2.7 1528 53.8   1.4 0101 54.3   1.3 69   5 96   0 29   6 2.4   0.4 14.2   0.9 1801 SSE | 155 0.00 0.00 0.194   0.009 566   8 60   10
Jimtown-North (Piccolo Ranch 15) 8/25/26 91.6   2.8 1516 50.4   0.7 0053 50.6   1.1 62   5 100   0 18   7 1.5   0.0 11.6   0.9 1705 SSW | 210 0.00 0.00 0.172   0.010 515   15 0   10
HWY 128/Chalk Hill Rd (Landslide) 8/25/26 91.1   3.1 1504 51.4   0.0 0101 52.9   1.2 65   5 93   2 21   10 2.0   0.2 13.3   0.9 1620 SW | 219 0.00 0.00 0.169   0.007 473   2 0   10
N Chalk Hill Rd (Ranch 63) 8/25/26 89.3   3.6 1504 49.6   0.3 0058 51.9   0.8 64   5 93   1 22   8 2.1   0.3 14.4   2.4 1644 WSW | 252 0.00 0.00 0.169   0.005 474   6 0   10
Newman Knights Valley 8/16/26 87.7   7.5 1555 53.8   0.1 0712 56.9   1.1 71   5 89   2 46   12 3.1   0.4 13.6   1.9 1647 SW | 220 0.00 0.00 - - 60   10
Knights Valley (Bavarian Lion) 8/25/26 91.2   4.0 1506 48.3   0.9 0101 49.0   2.3 63   4 97   1 13   14 2.2   0.1 14.1   1.2 1642 WNW | 289 0.00 0.00 0.189   0.006 539   10 0   0
Red Tail 8/25/26 90.1   4.6 1501 50.2   1.2 0059 52.7   0.7 66   4 92   3 27   8 2.7   0.5 14.4   0.4 1539 S | 190 0.00 0.01 0.186   0.002 540   12 60   10
Franz Valley (Stornetta) 8/25/26 90.1   2.5 1519 49.0   2.2 0059 49.5   1.1 - 94   1 17   12 1.4   0.2 10.6   0.6 1635 WNW | 285 0.00 0.00 - - 10   10
Upper Dry Creek Valley 8/25/26 91.6   2.2 1540 52.2   0.6 0045 52.5   1.7 63   6 94   2 19   9 2.2   0.7 13.4   0.0 1646 SE | 135 0.00 0.00 0.203   0.006 578   10 0   0
Lower Dry Creek Valley 8/25/26 88.9   1.5 1530 51.1   2.2 0059 53.0   1.8 67   6 100   0 18   13 2.3   0.5 17.1   1.0 1623 NW | 324 0.00 0.01 0.193   0.007 539   9 60   10
Max   94.3 - 55.7 - 54.4 69 100 29 5.2 21.3 - - 0.00 0.05 0.239 615 -
Avg   - - - - 51.7 63 - - 2.7 - - - - - - - -
Min   88.2 - 46.8 - 44.9 46 84 13 1.4 10.6 - - 0.00 0.00 0.169 473 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 8/26/26 4:49 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) 8/25/26 89.5   2.0 1440 54.6   0.8 0058 53.8   1.1 67 84   1 25   12 0.0 6.4   6.4 1927 0.00 0.02 0.162   0.007 548   23 0
Windsor-East (Ranch 16) 8/25/26 85.8   2.5 1441 50.0   5.0 0053 53.4   1.4 68 91   2 28   4 3.4 14.5   0.5 1602 0.00 0.00 0.191   0.010 539   6 100
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) 8/25/26 86.1   2.6 1603 49.4   2.7 0059 53.4   1.9 71 96   2 26   10 1.8 12.1   0.3 1530 0.00 0.02 0.173   0.006 532   6 90
Fulton-NW (Ranch 5) 8/25/26 84.1   2.6 1618 50.7   3.4 0101 53.7   1.8 71 94   0 28   11 3.4 13.5   0.9 1627 0.00 0.00 0.189   0.013 548   2 100
Bisordi (Fulton) 8/25/26 85.1   3.2 1430 49.9   3.7 0059 55.1   1.3 73 94   0 37   7 2.1 11.2   1.8 1601 0.00 0.00 0.177   0.005 560   3 100
Windsor-South (Laughlin Rd) 8/25/26 87.3   3.1 1422 53.6   2.3 0058 53.6   1.7 70 93   1 24   11 - - - 0.00 0.00 - - 80
Fulton-SE (Barnes Rd) 8/25/26 84.0   2.0 1408 56.9   0.4 0058 54.6   1.2 70 92   0 34   8 1.3 12.6   0.2 1949 0.00 0.00 - - 100
Fulton-SW (Ranch 21) 8/25/26 84.4   3.3 1624 51.7   1.8 0056 53.4   1.7 72 93   1 24   15 2.8 12.7   5.4 1534 0.00 0.00 0.189   0.009 572   0 100
NW Santa Rosa (Piner Road) 8/25/26 85.8   5.3 1559 50.6   1.7 0157 56.6   2.1 81 100   0 29   17 1.8 11.4   2.5 1450 0.00 0.00 - - 100
River Rd South (Denner Ranch) 8/25/26 83.6   4.0 1349 49.8   2.2 0058 -1.9   3.3 30 100   0 0   0 3.8 15.6   1.3 1642 - - - - 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) 8/25/26 89.5   5.0 1612 50.1   1.9 0051 53.9   2.1 72 96   2 22   16 - - - 0.00 0.03 - - 80
SunnyView Vineyard (SCWC) 8/25/26 83.7   3.3 1612 49.4   1.7 0203 53.0   1.8 72 97   2 27   13 1.7 11.5   1.9 1437 0.00 0.00 0.154   0.002 482   7 100
Guerneville Rd West (Balletto) 8/25/26 83.3   4.2 1534 49.6   2.7 0059 55.0   1.9 77 97   2 30   18 2.3 11.8   1.1 1605 0.00 0.11 - - 100
Sanchietti Ranch 8/25/26 83.8   3.5 1556 50.9   0.8 0150 56.2   1.2 - 95   0 37   16 3.0 13.2   1.3 1940 0.00 0.00 - - 100
Occidental Rd (Sebastopol) 8/25/26 83.9   4.1 1549 49.3   1.5 0052 57.6   2.2 85 100   0 38   18 1.9 12.9   2.6 1446 0.00 0.00 - - 100
Harper's Rest (Windsor-West) 8/25/26 89.5   1.4 1624 50.0   1.0 0030 51.7   1.6 - 96   2 18   12 1.7 9.6   0.2 1523 0.00 0.04 - - 40
Lower Westside Rd (Ranch 12) 8/25/26 87.9   2.0 1613 49.9   1.9 0045 52.3   1.7 70 95   0 21   12 2.0 12.8   1.1 1716 0.00 0.03 - - 90
Guerneville (Laughlin Rd) 8/25/26 85.6   4.8 1350 48.5   0.4 0101 52.8   0.0 72 94   1 30   11 2.2 14.3   0.2 1448 0.00 0.02 - - 100
Korbel (Winery) 8/25/26 86.9   6.0 1342 51.6   1.2 0033 53.6   0.6 70 92   2 29   14 0.9 11.6   2.4 1449 0.00 0.01 - - 90
Forestville (Shone Farms) 8/25/26 88.6   2.1 1655 51.5   0.8 0055 54.0   1.3 72 96   0 25   8 1.8 10.5   2.0 1722 0.00 0.04 0.167   0.004 515   3 90
Forestville-NE (Ranch 30) 8/25/26 88.8   3.0 1555 49.3   1.1 0051 54.6   0.9 74 97   0 28   10 2.2 12.1   1.9 1538 0.00 0.03 0.180   0.007 538   2 30
Foggy Bend (Ranch 41) 8/25/26 87.5   2.3 1548 50.8   0.6 0057 55.8   0.5 75 95   0 34   8 2.0 12.9   1.4 1600 0.00 0.03 0.176   0.002 537   3 90
Last Stop 8/25/26 90.1   4.1 1546 49.0   0.3 0049 53.5   0.8 73 96   1 25   9 1.7 11.2   2.1 1535 0.00 0.02 0.169   0.006 511   23 60
Green Valley Vineyard 8/25/26 87.1   4.6 1520 50.2   0.3 0047 52.4   1.6 73 98   1 23   14 1.7 12.1   1.1 1554 0.00 0.07 0.039   0.003 29   10 90
Park Royal 8/25/26 83.6   3.6 1546 52.6   1.4 0058 53.6   1.4 72 96   4 32   10 - - - 0.00 0.00 - - 100
Merino 8/25/26 85.4   1.5 1603 48.8   0.9 0029 55.4   1.3 78 100   0 37   6 2.2 11.5   1.9 1432 0.00 0.00 0.178   0.005 552   1 100
Green Valley (Sanchietti) 8/25/26 89.5   5.6 1546 46.6   0.5 0224 - - - - - - - - - - - 90
Keefer Ranch (Green Valley) 8/25/26 86.0   5.2 1616 47.2   1.8 0044 53.5   0.9 75 96   0 29   13 - - - 0.00 0.04 - - 90
Graton-West (Dutton Ranch) 8/25/26 86.7   5.3 1557 48.0   2.7 0047 55.2   2.6 79 100   0 27   16 1.6 10.2   1.4 1414 0.00 0.05 - - 90
Graton-South (Mill Station Rd) 8/25/26 81.0   6.0 1615 47.8   2.9 0050 53.6   2.3 77 98   1 31   22 0.8 8.7   3.8 1411 0.00 0.03 - - 40
Occidental (Horseshoe Bend) 8/25/26 82.5   7.7 1515 50.1   2.4 0051 53.4   2.2 - 100   0 30   22 - - - 0.00 0.08 - - 0
Sexton Valley (Jacqueline's Blk) 8/25/26 80.5   5.3 1601 48.0   3.1 0027 55.5   1.7 80 98   2 44   14 1.2 9.7   2.3 1635 0.00 0.09 - - 40
Sebastopol Hills (Burnside Rd) 8/25/26 77.8   4.6 1536 51.9   3.5 0059 55.5   1.5 84 100   0 43   18 2.4 13.6   1.9 1631 0.00 0.00 - - 50
Pleasant Hill 8/25/26 82.4   4.1 1558 48.0   3.5 0059 53.4   2.1 - 96   0 35   13 1.8 11.3   3.2 1448 0.00 0.05 - - 100
Seaview/Fort Ross (Hirsch) 8/25/26 77.7   6.1 1601 54.2   1.4 0101 48.1   2.8 55 96   0 22   15 2.1 9.2   0.2 1425 0.00 0.06 0.183   0.021 607   10 70
Max   90.1 - 56.9 - 57.6 85 100 44 3.8 15.6 - 0.00 0.11 0.191 607 -
Avg   - - - - 52.4 72 - - 2.0 - - - - - - -
Min   77.7 - 46.6 - -1.9 30 84 0 0.0 6.4 - 0.00 0.00 0.029 0 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 8/26/26 4:49 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 8/25/26 83.9   1.7 1455 52.6   2.1 0101 50.9   2.5 98   0 28   11 1.8   0.1 10.3   0.3 1438 SSE | 151 0.00 0.01 0.141   0.003 424   8 100   10
Lower Bennett Valley 8/25/26 84.9   0.3 1359 45.9   0.1 0059 53.6   0.4 100   0 31   8 3.6   0.3 14.7   2.9 1434 S | 191 0.00 0.00 0.182   0.007 549   8 100   0
Kenwood (Wildwood) 8/25/26 88.7   0.2 1448 55.6   1.3 0036 52.0   1.9 95   1 24   8 3.2   0.3 12.7   0.7 1726 N | 1 0.00 0.00 0.191   0.002 580   2 0   10
Sonoma Valley (Bedrock) 8/25/26 90.5   5.2 1547 52.5   1.6 0101 48.3   3.9 91   2 12   22 - - - - 0.00 0.00 - - 90   10
Sonoma-West (Arnold) 8/25/26 89.9   1.8 1655 51.0   1.9 0101 51.0   1.2 93   3 21   12 3.1   0.4 15.2   2.3 1412 SSW | 200 0.00 0.00 0.225   0.004 632   36 0   0
Sonoma Valley HS 8/25/26 86.4   1.9 1429 54.9   2.8 0058 55.5   0.9 97   3 34   10 2.7   0.3 9.3   0.8 2036 SSW | 207 0.00 0.00 0.187   0.005 565   25 90   10
Sonoma East (Bundschu01) 8/25/26 87.4   5.1 1510 55.6   6.9 0228 52.7   0.4 92   2 27   13 3.2   0.2 16.9   2.2 1805 WSW | 249 0.00 0.00 0.193   0.001 571   36 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) 8/25/26 88.9   5.3 1430 55.1   5.9 0059 52.6   0.9 91   3 23   15 3.4   0.6 15.8   3.0 1727 SW | 235 0.00 0.00 - - 90   10
Ricci Vineyards (Carneros) 8/25/26 89.2   7.7 1452 54.3   2.6 0054 52.4   2.2 92   2 21   19 6.0   0.4 20.4   0.1 1827 NW | 311 0.00 0.01 0.207   0.011 567   33 100   10
Carneros (Ranch 71) 8/25/26 87.1   8.2 1431 55.8   2.0 0606 52.2   2.5 94   0 24   20 6.4   2.0 24.2   8.1 1757 W | 259 0.00 0.00 0.206   0.021 563   44 90   10
Carneros Upper (Ranch 81) 8/25/26 88.5   7.1 1500 55.9   1.6 0610 51.8   2.6 - - 9.4   1.7 22.8   1.1 1751 W | 260 - - - - 90   10
Carneros Lower (Ranch 81) 8/25/26 96.7   16.5 1557 56.3   3.2 0326 53.6   2.0 93   7 20   26 1.0   0.8 12.9   2.1 1756 WNW | 297 0.00 0.00 0.020   0.029 9   70 90   10
Rohnert Park-West (Stony Point) 8/25/26 78.0   0.9 1313 48.4   3.6 0010 55.3   1.8 98   1 49   6 1.7   0.8 13.9   2.9 1546 SW | 223 0.00 0.00 - - 40   20
Cartograph Wines Base 8/25/26 74.8   0.4 1241 54.0   2.5 0037 56.0   1.3 98   1 58   4 4.0   0.7 22.5   0.6 1642 SSW | 197 0.00 0.08 0.150   0.001 515   22 50   20
Cartograph Wines Remote 8/25/26 76.7   1.0 1236 51.8   4.2 2313 - - - - - - - - - - - 40   20
Rice-Spivak Vineyard 8/25/26 77.8   0.8 1254 47.8   9.0 2312 - - - - - - - - - - - 20   20
Penngrove (Asellus) 8/25/26 79.7   3.8 1329 47.7   5.9 0022 53.2   2.0 97   3 38   0 2.7   0.6 12.4   1.1 1438 WNW | 284 0.00 0.00 - - 100   20
Petaluma (Ranch 10) 8/25/26 82.6   3.3 1431 55.0   1.4 0056 53.9   1.5 91   2 33   3 3.1   0.1 13.6   0.7 1651 NW | 322 0.00 0.00 0.169   0.006 528   26 90   20
Max   96.7 - 56.3 - 56.0 100 58 9.4 24.2 - - 0.00 0.08 0.225 632 -
Avg   - - - - 52.8 - - 3.7 - - - - - - - -
Min   74.8 - 45.9 - 48.3 91 12 1.0 9.3 - - 0.00 0.00 0.020 9 -