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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 9/21/26 8:57 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) 9/20/26 76.1   12.9 1115 54.3   4.8 0628 49.5   5.1 60   18 86   22 29   13 4.0   3.3 21.7   5.0 0257 NW | 324 0.00 0.33 0.118   0.112 332   206 100   10
Rockpile Lower (Cooley) 9/20/26 76.4   14.8 1603 51.4   5.8 0740 51.0   4.4 68   22 95   24 43   28 1.7   1.2 11.3   5.4 1308 SE | 132 0.00 0.33 - - 70   20
Cloverdale-East (Ranch 83) 9/20/26 79.5   11.2 1602 50.6   3.1 0513 52.5   1.4 - - - 1.9   0.3 13.3   0.3 1420 SSW | 192 0.00 0.12 0.097   0.066 286   184 100   20
Cloverdale-SE (Ranch 38) 9/20/26 78.7   10.3 1556 50.1   2.8 0708 53.3   0.2 76   11 98   6 45   12 4.2   1.0 17.4   0.1 1315 SSE | 155 0.00 0.11 0.103   0.069 276   159 30   10
Geyserville-North (Hoffman) 9/20/26 80.1   7.7 1554 51.0   4.2 0316 54.6   1.4 77   5 96   2 49   12 1.7   0.4 11.3   1.2 1311 S | 174 0.00 0.00 0.089   0.059 270   184 40   20
Geyserville (Ranch 3) 9/20/26 78.5   9.5 1553 51.3   4.4 0319 53.2   2.2 75   6 100   0 43   12 1.7   0.4 11.0   0.6 2017 ESE | 116 0.00 0.13 0.088   0.055 257   156 70   20
Geyserville-East (Ranch 40) 9/20/26 76.7   9.9 1551 50.4   1.4 0713 53.7   0.1 81   6 100   1 50   15 4.2   1.4 16.1   2.3 1413 SSW | 202 0.00 0.12 0.102   0.067 306   175 0   10
Geyserville-South (Nervo Station) 9/20/26 77.2   9.4 1548 51.6   1.0 0334 - - - - 2.2   0.0 10.5   0.7 1232 SE | 139 0.00 0.21 - - 10   10
Peterson (Ranch 09) 9/20/26 76.2   9.9 1538 51.2   4.0 0221 52.1   1.1 74   3 94   2 44   13 2.2   0.1 10.9   1.0 1239 S | 191 0.00 0.20 0.095   0.050 295   160 40   20
Crazy Creek Ranch 9/20/26 76.8   11.8 1546 50.9   4.3 0251 54.0   1.6 77   4 95   3 51   17 1.4   0.1 9.4   1.6 1420 SSE | 161 0.00 0.23 0.093   0.061 309   186 20   20
Whitton Ranch (201e) 9/20/26 78.7   9.5 1540 48.8   5.5 0221 53.0   1.6 76   3 100   0 43   12 2.0   0.2 10.4   1.8 1250 S | 184 0.00 0.29 0.088   0.045 260   122 30   20
Lytton East (Shop Hill Bottom) 9/20/26 77.3   9.7 1540 52.2   5.2 0154 52.5   1.1 75   2 95   5 43   11 2.2   0.3 11.9   0.8 2005 SE | 136 0.00 0.27 0.098   0.057 304   167 20   10
Lytton East (Hill 5) 9/20/26 76.9   9.1 1542 52.7   2.2 0600 52.8   0.8 77   3 97   1 44   10 3.2   0.4 14.2   1.1 1419 SSE | 168 0.00 0.25 0.096   0.052 273   149 70   10
Lytton West Lower (Lew 6) 9/20/26 77.3   9.3 1540 51.4   5.3 0147 53.0   1.5 77   3 100   0 44   10 2.3   0.1 14.1   1.0 1237 S | 179 0.00 0.28 0.096   0.057 295   186 20   10
Lytton West Hill (23PS) 9/20/26 75.6   9.9 1533 53.0   3.2 0151 53.6   0.8 78   3 100   0 46   11 2.8   0.4 12.9   1.8 2000 ESE | 122 0.00 0.26 0.097   0.060 299   193 90   10
Big River 9/20/26 75.7   9.2 1527 52.3   3.8 0246 54.2   1.2 79   3 98   2 51   13 2.0   0.0 10.5   3.3 1359 S | 185 0.00 0.28 0.102   0.052 340   159 90   10
Jimtown-North (Piccolo Ranch 15) 9/20/26 77.4   12.2 1545 49.0   2.7 0319 51.8   2.4 73   5 100   0 42   17 1.2   0.1 10.5   0.0 1410 SSW | 212 0.00 0.20 0.086   0.043 270   152 20   20
HWY 128/Chalk Hill Rd (Landslide) 9/20/26 77.6   11.2 1437 51.2   6.3 0222 53.0   2.6 74   5 95   0 44   15 1.7   0.1 10.3   1.1 1324 SSW | 203 0.00 0.31 0.088   0.052 263   155 20   10
N Chalk Hill Rd (Ranch 63) 9/20/26 76.6   9.4 1522 48.4   3.7 0302 51.7   2.2 73   3 93   6 45   14 1.9   0.1 9.9   2.5 1350 SSW | 196 0.00 0.29 0.093   0.047 284   146 30   20
Newman Knights Valley 9/20/26 75.7   11.4 1536 50.5   5.4 0352 53.3   0.5 76   4 89   0 59   12 2.4   0.2 10.9   1.0 1207 SSW | 213 0.00 0.40 - - 10   10
Knights Valley (Bavarian Lion) 9/20/26 76.1   12.7 1526 46.7   3.8 0515 51.1   2.9 75   7 97   0 44   22 1.7   0.1 12.1   2.0 1407 WNW | 303 0.00 0.26 0.098   0.056 311   168 30   10
Red Tail 9/20/26 77.9   9.6 1438 49.4   3.4 0209 52.8   1.8 77   5 92   2 50   17 2.4   0.0 11.0   2.0 1359 S | 188 0.00 0.29 0.098   0.058 316   164 80   10
Franz Valley (Stornetta) 9/20/26 77.7   10.3 1439 45.4   1.9 0700 50.7   2.7 - 93   1 44   22 1.2   0.1 8.2   3.6 1430 NNW | 328 0.00 0.43 - - 80   10
Upper Dry Creek Valley 9/20/26 79.7   8.9 1558 51.5   4.5 0242 53.0   0.9 75   4 96   0 39   7 2.1   0.4 11.4   0.7 1250 S | 176 0.00 0.14 0.098   0.066 293   207 60   10
Lower Dry Creek Valley 9/20/26 76.6   8.6 1544 52.0   4.8 0159 53.7   1.5 78   3 100   0 44   8 1.3   0.9 12.8   2.8 1406 SE | 131 0.00 0.26 0.085   0.064 268   183 70   10
Max   80.1 - 54.3 - 54.6 81 100 59 4.2 21.7 - - 0.00 0.43 0.118 340 -
Avg   - - - - 52.7 75 - - 2.2 - - - - - - - -
Min   75.6 - 45.4 - 49.5 60 86 29 1.2 8.2 - - 0.00 0.00 0.085 257 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 9/21/26 8:57 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) 9/20/26 76.8   11.2 1523 53.1   2.5 0103 53.3   0.8 76 84   4 52   13 0.0 0.0   10.9 0101 0.00 0.50 0.078   0.051 280   182 0
Windsor-East (Ranch 16) 9/20/26 78.1   5.4 1510 53.3   7.2 0200 52.9   2.1 75 92   8 42   12 2.7 12.2   2.5 1411 0.00 0.23 0.099   0.054 297   172 90
Mark West-North (Ranch 14) 9/20/26 75.6   7.6 1511 54.6   6.4 0352 52.7   1.3 75 93   5 45   13 1.7 8.5   4.2 1802 0.00 0.24 - - 90
Windsor-SE (Silk Rd) 9/20/26 75.5   8.6 1520 54.4   8.3 0101 53.5   2.0 78 96   3 48   11 1.8 8.8   2.8 1142 0.00 0.32 0.083   0.056 270   186 80
Fulton-NW (Ranch 5) 9/20/26 75.0   7.0 1506 54.1   6.6 0101 53.5   15.0 78 93   7 48   45 2.9 11.7   5.3 1405 0.00 0.23 0.094   0.060 302   172 80
Bisordi (Fulton) 9/20/26 75.2   7.5 1514 53.1   7.7 0101 54.4   2.0 80 92   4 55   14 1.9 9.9   4.5 1411 0.00 0.22 0.093   0.055 321   176 80
Windsor-South (Laughlin Rd) 9/20/26 76.4   8.3 1514 54.1   4.6 0611 53.1   1.1 77 92   8 47   47 - - - 0.00 0.17 - - 80
Fulton-SE (Barnes Rd) 9/20/26 75.0   7.4 1509 55.2   6.4 0609 53.5   1.2 77 91   5 50   14 1.6 11.4   2.5 1924 0.00 0.29 - - 80
Fulton-SW (Ranch 21) 9/20/26 74.0   7.3 1506 54.0   6.6 0523 53.1   22.8 78 93   7 49   49 2.6 9.9   4.5 1345 0.00 0.20 0.096   0.056 314   174 80
NW Santa Rosa (Piner Road) 9/20/26 74.9   7.4 1508 54.2   7.5 0540 56.6   2.2 89 100   0 57   14 1.8 9.6   4.1 1440 0.00 0.00 - - 80
River Rd South (Denner Ranch) 9/20/26 75.5   5.8 1513 52.6   5.3 0548 -6.6   9.7 34 100   0 0   0 3.8 12.9   3.9 1925 - - - - 90
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) 9/20/26 76.9   9.5 1409 53.9   6.4 0409 53.8   1.3 79 97   3 45   11 - - - 0.00 0.24 - - 30
SunnyView Vineyard (SCWC) 9/20/26 74.5   7.1 1409 53.5   7.1 0529 52.7   1.4 78 94   6 47   10 1.8 10.4   1.9 1440 0.00 0.27 0.083   0.041 270   144 80
Guerneville Rd West (Balletto) 9/20/26 74.1   7.9 1510 54.3   6.5 0530 54.8   1.2 84 97   2 56   12 2.3 9.9   3.3 1424 0.00 0.43 - - 80
Sanchietti Ranch 9/20/26 73.5   7.5 1417 54.9   6.4 0500 55.5   1.1 - 94   3 60   13 2.8 11.3   2.0 1422 0.00 0.28 - - 80
Occidental Rd (Sebastopol) 9/20/26 73.7   8.7 1414 53.5   4.9 2347 58.2   2.0 95 100   0 68   19 2.0 11.0   2.4 1416 0.00 0.20 - - 80
Harper's Rest (Windsor-West) 9/20/26 75.2   9.9 1507 52.7   5.4 0040 52.4   1.1 - 95   2 46   11 1.3 8.2   3.3 1250 0.00 0.45 - - 100
Lower Westside Rd (Ranch 12) 9/20/26 75.6   9.0 1430 53.4   6.6 0236 53.4   1.5 79 99   1 47   10 1.6 8.4   3.3 1358 0.00 0.45 - - 90
Guerneville (Laughlin Rd) 9/20/26 75.6   9.7 1510 49.8   3.2 0330 52.3   1.8 78 95   2 49   14 1.5 11.4   2.8 1530 0.00 0.81 - - 90
Korbel (Winery) 9/20/26 76.0   9.9 1526 51.9   3.5 0340 53.6   1.2 79 94   3 49   14 0.7 7.8   2.0 1337 0.00 0.52 - - 90
Forestville (Shone Farms) 9/20/26 76.8   7.4 1523 51.7   2.1 0440 54.0   0.8 81 97   0 49   9 1.6 9.1   1.6 1343 0.00 0.43 0.081   0.056 270   174 90
Forestville-NE (Ranch 30) 9/20/26 76.4   7.0 1501 53.0   6.7 0431 54.4   1.1 83 98   1 52   9 2.2 9.5   2.4 1140 0.00 0.40 0.084   0.061 278   186 20
Foggy Bend (Ranch 41) 9/20/26 75.6   8.5 1521 54.2   6.9 0101 54.9   0.9 82 95   2 56   9 1.6 8.1   2.7 1533 0.00 0.42 0.085   0.051 291   166 90
Last Stop 9/20/26 76.8   9.0 1520 52.7   6.1 0023 53.8   1.1 81 96   1 50   10 1.7 8.3   1.5 1339 0.00 0.39 0.085   0.056 283   176 50
Green Valley Vineyard 9/20/26 74.9   6.8 1503 51.5   3.4 0359 53.4   0.9 83 98   0 51   20 1.5 9.4   0.7 1403 0.00 0.57 0.013   0.009 0   5 90
Park Royal 9/20/26 73.4   7.2 1505 53.7   4.8 0526 53.0   1.0 78 95   2 50   12 - - - 0.00 0.21 - - 80
Merino 9/20/26 75.4   7.5 1505 53.7   7.7 2258 54.8   1.4 82 97   3 53   11 2.0 8.4   5.6 1214 0.00 0.33 0.090   0.051 296   163 80
Green Valley (Sanchietti) 9/20/26 76.2   7.6 1508 50.4   4.9 0001 - - - - - - - - - - - 90
Keefer Ranch (Green Valley) 9/20/26 74.4   6.7 1513 52.6   5.2 0424 54.1   1.4 83 97   1 55   10 - - - 0.00 0.48 - - 90
Graton-West (Dutton Ranch) 9/20/26 76.8   6.2 1458 52.7   5.0 0421 58.4   3.1 95 100   0 59   17 1.8 9.3   1.3 1625 0.00 0.61 - - 90
Graton-South (Mill Station Rd) 9/20/26 72.5   5.8 1504 52.0   5.8 0310 53.8   1.9 85 98   0 54   10 0.6 6.6   1.2 1413 0.00 0.41 - - 50
Occidental (Horseshoe Bend) 9/20/26 70.9   5.3 1504 49.6   1.7 0428 52.9   0.6 - 100   0 56   8 - - - 0.00 0.75 - - 70
Sexton Valley (Jacqueline's Blk) 9/20/26 74.3   4.9 1456 52.8   7.8 0251 54.8   2.2 87 98   0 56   8 1.2 11.0   0.3 1409 0.00 0.27 - - 70
Sebastopol Hills (Burnside Rd) 9/20/26 70.0   5.3 1324 51.6   1.2 0213 54.2   0.8 91 100   0 60   8 2.0 10.6   5.0 1352 0.00 0.00 - - 40
Pleasant Hill 9/20/26 74.4   5.8 1324 52.9   4.7 0510 53.3   1.4 - 97   0 50   9 1.9 9.4   2.9 1429 0.00 0.49 - - 90
Seaview/Fort Ross (Hirsch) 9/20/26 67.8   13.5 1303 54.0   6.3 1153 50.8   2.4 69 88   14 56   24 2.2 9.8   0.2 1415 0.00 0.07 0.093   0.061 350   172 10
Max   78.1 - 55.2 - 58.4 95 100 68 3.8 12.9 - 0.00 0.81 0.099 350 -
Avg   - - - - 52.2 80 - - 1.8 - - - - - - -
Min   67.8 - 49.6 - -6.6 34 84 0 0.0 0.0 - 0.00 0.00 0.013 0 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 9/21/26 8:57 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 9/20/26 72.1   11.2 1456 50.0   0.4 0654 52.0   1.1 98   3 52   21 1.3   0.2 7.1   2.1 1100 SSE | 149 0.00 0.02 0.068   0.049 220   150 100   0
Lower Bennett Valley 9/20/26 74.2   11.8 1447 52.3   10.8 0122 53.6   2.6 100   0 51   22 2.8   0.7 11.0   2.6 1345 S | 181 0.00 0.39 0.091   0.058 294   191 80   10
Kenwood (Wildwood) 9/20/26 73.7   13.3 1441 50.8   6.0 0330 53.0   2.4 100   0 51   23 1.9   0.5 11.8   0.2 1527 WSW | 256 0.00 0.21 0.092   0.054 326   118 50   10
Sonoma Valley (Bedrock) 9/20/26 69.6   18.6 1347 46.8   2.5 0414 50.7   2.1 96   0 55   33 - - - - 0.00 0.29 - - 80   10
Sonoma-West (Arnold) 9/20/26 69.1   20.1 1337 48.0   2.3 0614 51.3   2.4 91   1 58   35 2.0   0.1 10.8   4.4 1510 ESE | 108 0.00 0.35 0.086   0.086 299   209 70   10
Sonoma Valley HS 9/20/26 68.4   18.2 1339 50.4   2.8 0547 54.7   1.0 100   0 66   35 1.8   0.1 7.2   4.8 1858 SE | 134 0.00 0.01 0.077   0.064 273   182 80   10
Sonoma East (Bundschu01) 9/20/26 69.1   13.3 1345 49.4   4.2 0548 52.7   1.9 95   0 58   24 3.0   0.3 13.2   1.1 1506 S | 182 0.00 0.23 0.085   0.063 284   177 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) 9/20/26 70.4   12.5 1401 50.1   4.8 0325 52.8   1.9 93   1 55   20 1.8   0.1 10.1   2.3 1158 SSE | 153 0.00 0.18 - - 90   10
Ricci Vineyards (Carneros) 9/20/26 67.7   12.7 1314 48.7   2.6 0336 52.8   1.2 95   1 60   23 2.8   0.5 11.8   4.7 1547 SE | 129 0.00 0.12 0.082   0.066 277   186 100   0
Carneros (Ranch 71) 9/20/26 66.1   12.5 1450 52.4   0.5 0340 53.3   0.1 95   0 64   25 2.1   1.1 9.8   11.7 1504 ESE | 116 0.00 0.07 0.073   0.063 260   173 70   10
Carneros Upper (Ranch 81) 9/20/26 67.8   12.0 1340 52.5   1.4 0522 39.0   10.3 - - 4.1   1.5 17.2   7.5 1504 S | 184 - - - - 70   10
Carneros Lower (Ranch 81) 9/20/26 67.8   12.0 1452 51.1   3.5 0536 53.2   5.4 94   6 63   62 1.4   0.1 12.6   0.1 1455 SSE | 147 0.00 0.01 0.013   0.006 7   5 70   10
Rohnert Park-West (Stony Point) 9/20/26 73.0   4.8 1401 53.8   8.6 0348 54.4   1.1 96   2 56   10 1.6   0.2 15.0   0.9 1419 WNW | 287 0.00 0.20 - - 40   10
Cartograph Wines Base 9/20/26 71.5   2.5 1355 52.8   1.1 0330 54.4   0.1 98   0 62   8 3.4   0.1 15.3   5.9 1917 SSE | 159 0.00 0.30 0.083   0.040 290   165 0   10
Cartograph Wines Remote 9/20/26 72.6   0.7 1353 53.7   4.7 0337 - - - - - - - - - - - 40   10
Rice-Spivak Vineyard 9/20/26 74.9   2.5 1313 53.3   8.9 0333 - - - - - - - - - - - 40   10
Penngrove (Asellus) 9/20/26 74.1   7.4 1440 53.5   6.4 2141 52.7   1.0 92   5 48   14 2.3   0.3 13.3   0.8 1026 E | 90 0.00 0.57 - - 10   10
Petaluma (Ranch 10) 9/20/26 74.6   9.8 1458 53.9   7.6 0129 53.1   1.7 91   5 49   19 1.2   0.8 7.1   5.3 1313 SW | 231 0.00 0.09 0.083   0.053 279   156 80   10
Max   74.9 - 53.9 - 54.7 100 66 4.1 17.2 - - 0.00 0.57 0.092 326 -
Avg   - - - - 52.1 - - 2.2 - - - - - - - -
Min   66.1 - 46.8 - 39.0 91 48 1.2 7.1 - - 0.00 0.01 0.013 7 -