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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 8/30/26 7:34 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) 8/29/26 80.7   0.4 1346 52.0   8.0 0657 45.6   8.2 56   21 89   30 25   18 11.0   4.4 33.5   12.1 1720 NNW | 329 0.00 0.05 0.241   0.059 628   260 40   20
Rockpile Lower (Cooley) 8/29/26 85.0   0.6 1427 55.0   5.7 0544 45.9   6.5 52   17 82   25 23   8 5.9   2.5 27.1   10.2 1631 WSW | 254 0.00 0.02 - - 40   20
Cloverdale-East (Ranch 83) 8/29/26 90.5   4.9 1549 43.4   6.4 0622 46.5   2.9 - - - 2.3   0.0 16.0   3.6 2105 WNW | 296 0.00 0.00 0.203   0.063 589   199 10   10
Cloverdale-SE (Ranch 38) 8/29/26 90.2   8.3 1619 50.8   6.5 0659 48.6   2.0 54   1 88   9 24   11 4.3   0.6 15.8   1.2 1633 ENE | 57 0.00 0.01 0.203   0.054 543   191 10   10
Geyserville-North (Hoffman) 8/29/26 91.8   13.7 1723 42.8   6.1 0631 49.3   4.0 62   8 97   4 28   15 2.5   0.5 12.1   0.7 1853 W | 268 0.00 0.00 0.182   0.082 538   257 10   10
Geyserville (Ranch 3) 8/29/26 87.9   9.2 1721 44.5   5.9 0540 47.7   3.9 59   6 100   13 23   10 2.7   0.6 11.8   1.2 1529 SE | 136 0.00 0.00 0.190   0.080 540   232 20   10
Geyserville-East (Ranch 40) 8/29/26 84.8   11.3 1451 49.1   7.6 0648 50.5   2.6 62   5 96   10 31   21 4.5   0.2 18.8   4.2 1532 SSW | 206 0.00 0.00 0.198   0.089 561   270 0   0
Geyserville-South (Nervo Station) 8/29/26 85.5   10.7 1615 47.8   7.8 0654 - - - - 2.8   0.6 17.2   7.4 1911 NW | 306 0.00 0.00 - - 20   20
Peterson (Ranch 09) 8/29/26 85.1   11.5 1615 43.8   4.9 0510 47.2   4.3 60   9 97   6 26   19 2.5   0.2 13.1   2.8 1921 NW | 305 0.00 0.00 0.181   0.080 540   247 10   10
Crazy Creek Ranch 8/29/26 87.0   10.4 1520 45.7   4.9 0447 49.9   3.3 65   5 99   6 31   17 2.0   0.6 14.6   6.9 1906 NW | 317 0.00 0.00 0.188   0.092 582   281 10   10
Whitton Ranch (201e) 8/29/26 88.1   11.1 1634 39.8   4.5 0507 47.8   3.9 63   9 100   3 25   17 2.3   0.4 11.8   2.3 1922 NNW | 328 0.00 0.03 0.185   0.083 528   237 10   10
Lytton East (Shop Hill Bottom) 8/29/26 85.4   12.3 1553 46.2   5.6 0412 48.4   3.6 62   8 100   6 23   22 3.0   0.5 15.3   4.3 1917 WNW | 284 0.00 0.00 0.196   0.092 572   263 20   20
Lytton East (Hill 5) 8/29/26 84.9   11.9 1504 48.9   5.9 0503 49.0   3.6 62   7 98   8 24   24 4.8   1.3 23.0   9.5 1918 WNW | 296 0.00 0.00 0.200   0.098 516   232 40   20
Lytton West Lower (Lew 6) 8/29/26 85.2   11.2 1615 45.3   3.9 0334 48.8   3.3 63   8 100   6 23   23 3.0   0.5 13.2   2.9 1554 SSE | 149 0.00 0.01 0.196   0.093 577   267 20   20
Lytton West Hill (23PS) 8/29/26 84.7   12.5 1643 49.7   4.6 0449 49.6   3.7 64   8 100   7 25   22 3.4   0.2 14.2   2.8 1452 SSE | 158 0.00 0.01 0.198   0.092 590   272 70   20
Big River 8/29/26 83.5   10.6 1606 48.0   4.2 0435 50.4   3.5 65   7 100   7 31   23 2.3   0.4 13.7   3.9 1915 W | 278 0.00 0.00 0.192   0.099 605   311 50   20
Jimtown-North (Piccolo Ranch 15) 8/29/26 86.5   4.8 1643 44.4   2.9 0410 46.9   2.8 61   3 100   16 25   6 1.7   0.6 12.1   3.5 1654 S | 187 0.00 0.00 0.163   0.075 499   233 10   10
HWY 128/Chalk Hill Rd (Landslide) 8/29/26 86.2   9.5 1458 43.1   4.1 0450 48.0   4.1 64   6 96   4 29   11 1.7   0.2 12.0   2.0 1603 SW | 217 0.00 0.00 0.166   0.086 502   274 0   0
N Chalk Hill Rd (Ranch 63) 8/29/26 84.2   8.2 1447 41.5   5.5 0449 47.2   3.9 63   6 100   8 27   16 1.9   0.2 11.6   1.9 1433 SSW | 196 0.00 0.00 0.169   0.083 508   255 10   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) 8/29/26 86.4   7.7 1558 40.3   6.2 0526 46.0   3.9 61   5 98   2 21   13 2.1   0.6 12.0   2.2 1525 W | 262 0.00 0.00 0.183   0.089 572   295 0   0
Red Tail 8/29/26 85.6   10.3 1433 44.0   4.8 0557 50.1   2.6 67   6 95   4 33   16 2.5   0.3 13.7   2.2 1522 S | 186 0.00 0.01 0.184   0.099 583   324 50   20
Franz Valley (Stornetta) 8/29/26 85.9   7.6 1520 40.4   6.7 0651 46.8   2.7 - 96   3 24   10 1.3   0.3 10.1   0.8 1453 SSE | 160 0.00 0.00 - - 0   0
Upper Dry Creek Valley 8/29/26 88.3   9.9 1650 43.8   5.9 0638 47.9   4.6 58   11 97   2 21   19 3.6   1.2 17.4   6.2 1847 WNW | 296 0.00 0.00 0.214   0.094 603   261 40   20
Lower Dry Creek Valley 8/29/26 84.5   11.6 1631 45.5   2.7 0336 48.6   3.8 64   8 100   0 22   27 2.7   0.8 14.3   1.2 1523 E | 101 0.00 0.01 0.185   0.086 541   245 50   20
Max   91.8 - 55.0 - 50.5 67 100 33 11.0 33.5 - - 0.00 0.05 0.241 628 -
Avg   - - - - 48.1 61 - - 3.2 - - - - - - - -
Min   80.7 - 39.8 - 45.6 52 82 21 1.3 10.1 - - 0.00 0.00 0.163 499 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 8/30/26 7:34 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) 8/29/26 86.2   9.2 1551 49.0   4.5 0340 51.6   2.5 66 88   6 35   18 0.0 3.7   3.7 1930 0.00 0.02 0.158   0.086 557   296 0
Windsor-East (Ranch 16) 8/29/26 83.4   11.0 1436 45.1   3.4 0351 49.9   2.1 69 100   8 31   18 2.4 13.0   2.1 1508 0.00 0.00 0.185   0.104 557   329 90
Mark West-North (Ranch 14) 8/29/26 82.9   11.3 1532 50.4 0653 50.5   1.9 67 98   5 31   20 1.6 11.5   3.1 1709 0.00 0.00 - - 0
Windsor-SE (Silk Rd) 8/29/26 84.6   10.2 1552 46.3   1.0 0130 50.9   1.7 72 100   5 30   20 1.7 10.9   2.8 1642 0.00 0.02 0.171   0.096 553   309 80
Fulton-NW (Ranch 5) 8/29/26 81.6   9.8 1524 49.2   0.0 0101 25.2   27.7 39 100   6 3   51 2.8 13.7   2.8 1650 0.00 0.00 0.186   0.110 566   334 90
Bisordi (Fulton) 8/29/26 82.1   9.9 1537 46.4   0.1 0101 53.0   0.5 73 97   5 39   19 1.8 11.8   0.7 1558 0.00 0.00 0.181   0.108 594   348 90
Windsor-South (Laughlin Rd) 8/29/26 84.2   11.7 1552 49.9   1.6 0715 28.5   24.3 48 100   8 0   53 - - - 0.00 0.00 - - 70
Fulton-SE (Barnes Rd) 8/29/26 80.4   8.1 1455 50.6   0.0 0101 52.0   1.3 68 96   4 37   16 2.4 12.9   2.9 1624 0.00 0.00 - - 90
Fulton-SW (Ranch 21) 8/29/26 81.0   10.3 1511 50.6   0.5 0653 7.4   44.2 33 100   0 0   0 2.4 13.4   2.8 1548 0.00 0.00 0.191   0.115 598   346 90
NW Santa Rosa (Piner Road) 8/29/26 81.9   11.7 1529 50.9   2.0 0742 53.7   2.9 76 100   0 38   26 1.7 11.1   2.1 1406 0.00 0.00 - - 90
River Rd South (Denner Ranch) 8/29/26 81.7   9.9 1614 48.6   0.2 0618 2.1   3.0 32 100   0 0   0 3.7 16.2   5.7 1624 - - - - 70
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) 8/29/26 87.4   12.4 1504 49.9   0.8 0634 51.5   1.8 69 99   2 29   20 - - - 0.00 0.04 - - 40
SunnyView Vineyard (SCWC) 8/29/26 82.0   11.7 1551 49.6   3.0 0059 50.8   1.1 70 100   4 31   24 1.5 10.5   2.0 1501 0.00 0.00 0.157   0.093 518   299 70
Guerneville Rd West (Balletto) 8/29/26 82.4   10.9 1601 50.5   1.5 0656 53.0   1.3 75 100   6 40   21 2.2 12.8   4.5 1602 0.00 0.11 - - 90
Sanchietti Ranch 8/29/26 81.2   9.7 1527 51.3   1.9 0742 54.3   0.9 - 98   2 42   22 2.9 12.7   0.5 1405 0.00 0.00 - - 90
Occidental Rd (Sebastopol) 8/29/26 83.1   11.3 1601 49.1   0.5 0059 55.2   2.7 81 100   0 41   26 1.7 13.4   3.9 1323 0.00 0.00 - - 90
Harper's Rest (Windsor-West) 8/29/26 84.9   8.1 1634 48.0   1.1 0143 49.9   2.0 - 97   3 31   15 1.7 11.7   5.4 1524 0.00 0.04 - - 0
Lower Westside Rd (Ranch 12) 8/29/26 83.4   9.2 1603 47.2   1.4 0144 51.2   1.5 72 100   4 33   18 1.7 13.4   5.2 1154 0.00 0.03 - - 80
Guerneville (Laughlin Rd) 8/29/26 83.4   7.2 1528 47.6   0.7 0157 50.9   0.6 69 97   5 33   7 1.8 12.3   3.6 1430 0.00 0.02 - - 90
Korbel (Winery) 8/29/26 85.8   9.9 1651 48.4   3.1 0231 52.3   1.8 70 98   4 31   18 1.1 10.3   0.9 1425 0.00 0.01 - - 100
Forestville (Shone Farms) 8/29/26 83.7   6.5 1529 48.5   2.5 0634 51.7   2.1 70 98   4 37   14 1.7 10.4   3.1 1653 0.00 0.04 0.171   0.096 548   307 80
Forestville-NE (Ranch 30) 8/29/26 85.0   9.3 1616 46.4   2.0 0142 52.5   1.6 74 100   3 38   17 2.2 13.2   3.7 1629 0.00 0.03 0.182   0.103 569   314 0
Foggy Bend (Ranch 41) 8/29/26 85.4   10.6 1608 48.4   1.6 0130 53.7   1.1 74 97   2 42   16 1.4 11.5   4.6 1537 0.00 0.03 0.171   0.092 570   299 80
Last Stop 8/29/26 87.6   11.1 1608 46.2   2.2 0201 51.9   1.4 72 98   4 35   17 1.8 11.9   3.6 1717 0.00 0.02 0.177   0.100 553   301 20
Green Valley Vineyard 8/29/26 85.1   12.4 1658 47.1   2.9 0242 51.0   2.6 72 98   2 31   24 1.6 11.8   4.6 1417 0.00 0.07 0.034   0.001 19   60 80
Park Royal 8/29/26 81.3   10.3 1443 50.5   0.9 0632 50.6   1.8 69 98   2 30   23 - - - 0.00 0.00 - - 90
Merino 8/29/26 83.4   10.3 1504 48.8   1.7 0059 53.0   1.0 74 100   1 34   23 2.0 11.7   1.4 1632 0.00 0.00 0.180   0.112 573   344 90
Green Valley (Sanchietti) 8/29/26 87.0   12.2 1656 42.9   2.5 0124 - - - - - - - - - - - 80
Keefer Ranch (Green Valley) 8/29/26 86.2   11.4 1714 45.0   0.8 0145 52.2   1.3 75 98   3 35   19 - - - 0.00 0.04 - - 50
Graton-West (Dutton Ranch) 8/29/26 85.4   10.6 1709 45.8   1.0 0151 53.8   4.8 79 100   0 33   24 1.6 11.1   4.0 1508 0.00 0.05 - - 80
Graton-South (Mill Station Rd) 8/29/26 84.4   11.1 1722 43.8   1.6 0154 50.5   2.5 72 99   3 34   20 0.6 7.0   1.0 1412 0.00 0.03 - - 60
Occidental (Horseshoe Bend) 8/29/26 81.5   9.9 1523 47.2   3.2 0453 51.0   2.2 - 100   3 36   20 - - - 0.00 0.08 - - 20
Sexton Valley (Jacqueline's Blk) 8/29/26 84.1   9.6 1655 42.4   3.9 0259 51.8   2.2 75 99   3 40   16 1.0 8.4   1.4 1112 0.00 0.09 - - 60
Sebastopol Hills (Burnside Rd) 8/29/26 81.7   10.0 1642 46.5   5.7 0627 52.1   2.2 75 100   3 38   19 1.7 11.4   3.8 1447 0.00 0.00 - - 100
Pleasant Hill 8/29/26 83.0   11.4 1657 44.9   2.0 0300 50.4   1.9 - 97   2 34   22 1.5 9.7   0.6 1443 0.00 0.05 - - 70
Seaview/Fort Ross (Hirsch) 8/29/26 77.3   4.2 1436 55.6   4.9 0613 47.7   5.3 57 76   7 38   25 4.1 14.4   5.6 2055 0.00 0.06 0.185   0.072 596   268 60
Max   87.6 - 55.6 - 55.2 81 100 42 4.1 16.2 - 0.00 0.11 0.191 598 -
Avg   - - - - 47.7 67 - - 1.9 - - - - - - -
Min   77.3 - 42.4 - 2.1 32 76 0 0.0 3.7 - 0.00 0.00 0.034 19 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 8/30/26 7:34 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 8/29/26 80.1   7.7 1413 49.9   4.2 0633 48.9   1.5 95   5 32   10 2.2   0.6 9.7   2.2 1501 S | 187 0.00 0.01 0.142   0.081 438   267 70   10
Lower Bennett Valley 8/29/26 81.3   7.1 1346 39.1   5.1 0520 48.5   3.5 100   4 32   16 2.9   0.6 14.2   0.6 1418 WSW | 254 0.00 0.00 0.182   0.106 581   352 90   20
Kenwood (Wildwood) 8/29/26 84.7   9.1 1423 45.3   6.9 0656 49.3   2.6 100   9 27   12 2.4   0.2 13.5   4.8 1439 NNW | 337 0.00 0.00 0.181   0.102 574   344 20   20
Sonoma Valley (Bedrock) 8/29/26 82.3   7.7 1415 42.5   7.6 0658 47.9   2.6 98   6 27   19 - - - - 0.00 0.00 - - 80   20
Sonoma-West (Arnold) 8/29/26 85.3   10.2 1406 41.3   5.9 0636 47.4   3.5 94   5 28   17 2.9   0.8 17.8   1.8 1543 SW | 214 0.00 0.00 0.218   0.129 666   420 20   20
Sonoma Valley HS 8/29/26 82.0   8.7 1520 45.0   7.0 0648 52.4   2.7 100   4 38   17 1.9   0.2 8.4   0.2 1900 SE | 128 0.00 0.00 0.169   0.096 557   337 80   20
Sonoma East (Bundschu01) 8/29/26 81.6   8.2 1534 42.9   6.8 0535 49.6   3.0 95   4 33   15 3.3   1.1 16.4   2.4 1553 SSW | 212 0.00 0.00 0.178   0.103 555   343 80   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) 8/29/26 82.8   4.5 1611 42.6   8.8 0637 50.0   2.5 94   6 32   8 2.4   0.5 13.1   2.3 1446 SSE | 159 0.00 0.00 - - 80   20
Ricci Vineyards (Carneros) 8/29/26 80.9   5.5 1649 45.6   7.4 0606 51.5   1.2 96   6 36   7 3.3   0.7 15.8   2.4 1452 SSE | 161 0.00 0.01 0.180   0.099 567   343 60   10
Carneros (Ranch 71) 8/29/26 78.9   6.1 1651 51.0   4.3 0625 52.5   0.3 100   14 36   11 2.7   0.1 15.5   0.6 1652 W | 266 0.00 0.00 0.166   0.090 548   340 80   20
Carneros Upper (Ranch 81) 8/29/26 78.3   4.1 1716 51.8   4.8 0612 32.7   20.3 - - 5.0   1.0 21.3   2.0 1632 SSW | 199 - - - - 80   20
Carneros Lower (Ranch 81) 8/29/26 79.9   2.5 1547 46.8   3.9 0456 42.4   11.4 100   10 0   44 1.8   1.2 15.0   5.4 1726 SSE | 164 0.00 0.00 0.027   0.020 1   1 80   20
Rohnert Park-West (Stony Point) 8/29/26 79.0   7.9 1716 47.7   0.4 0059 53.1   0.7 99   4 44   16 1.4   0.3 16.2   5.3 1421 SSW | 195 0.00 0.00 - - 90   20
Cartograph Wines Base 8/29/26 77.0   6.3 1723 51.0   1.6 0627 53.7   0.8 99   2 46   18 3.3   0.3 19.1   6.0 1429 SSW | 206 0.01 0.09 0.160   0.103 552   342 100   20
Cartograph Wines Remote 8/29/26 78.2   6.0 1813 49.7   1.7 0101 - - - - - - - - - - - 90   20
Rice-Spivak Vineyard 8/29/26 79.9   6.3 1713 44.3   4.1 0059 - - - - - - - - - - - 70   20
Penngrove (Asellus) 8/29/26 80.5   10.1 1314 48.6   0.9 0057 51.0   1.1 98   2 35   19 2.4   0.5 13.5   4.3 1343 SSW | 212 0.00 0.00 - - 90   20
Petaluma (Ranch 10) 8/29/26 81.1   10.0 1334 45.3   2.7 0226 51.0   1.7 100   8 36   17 2.0   0.4 11.3   1.0 1443 WSW | 248 0.00 0.00 0.170   0.100 547   326 80   20
Max   85.3 - 51.8 - 53.7 100 46 5.0 21.3 - - 0.01 0.09 0.218 666 -
Avg   - - - - 48.9 - - 2.7 - - - - - - - -
Min   77.0 - 39.1 - 32.7 94 0 1.4 8.4 - - 0.00 0.00 0.027 1 -