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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 9/16/26 8:18 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) 9/15/26 86.8   2.3 1419 52.7   0.9 0059 44.4   0.7 46   2 82   3 17   2 5.3   3.5 18.0   9.9 1436 S | 172 0.00 0.33 0.216   0.005 559   6 70   10
Rockpile Lower (Cooley) 9/15/26 90.0   1.8 1441 51.4   3.4 2359 45.8   1.1 49   2 93   15 15   1 2.7   0.9 15.7   2.5 1532 WNW | 291 0.00 0.33 - - 60   10
Cloverdale-East (Ranch 83) 9/15/26 90.9   2.8 1451 44.5   8.3 0704 47.8   1.3 - - - 2.6   0.6 18.6   3.2 1716 SSE | 156 0.00 0.12 0.188   0.009 522   5 60   10
Cloverdale-SE (Ranch 38) 9/15/26 88.4   2.6 1459 52.8   3.2 2319 49.7   2.3 59   11 93   17 27   7 5.5   1.1 22.4   0.9 1724 N | 9 0.00 0.11 0.192   0.003 452   2 50   10
Geyserville-North (Hoffman) 9/15/26 88.6   5.7 1503 44.2   6.6 0643 50.1   1.0 65   11 92   8 27   5 2.7   0.4 15.4   1.8 1624 SE | 142 0.00 0.00 0.173   0.002 492   7 0   10
Geyserville (Ranch 3) 9/15/26 88.7   1.4 1455 45.6   6.8 0714 48.4   1.6 62   12 89   8 23   4 2.5   0.2 14.5   2.6 1559 ESE | 118 0.00 0.13 0.172   0.002 475   1 30   10
Geyserville-East (Ranch 40) 9/15/26 86.0   2.4 1454 52.4   1.7 2233 51.2   3.1 66   15 96   15 28   5 5.8   1.5 23.3   1.9 1717 SSE | 153 0.00 0.12 0.192   0.007 503   8 20   10
Geyserville-South (Nervo Station) 9/15/26 87.4   1.1 1508 50.3   3.2 0659 - - - - 2.9   0.4 15.8   1.0 1704 ESE | 113 0.00 0.21 - - 30   10
Peterson (Ranch 09) 9/15/26 86.6   2.1 1525 43.7   5.5 0655 47.4   1.5 63   11 89   2 24   6 2.4   0.5 12.8   0.2 1638 S | 173 0.00 0.20 0.168   0.006 503   5 0   0
Crazy Creek Ranch 9/15/26 88.1   0.9 1524 44.6   1.2 0652 50.2   2.9 68   9 97   2 29   8 1.9   0.2 13.9   3.1 1649 ESE | 113 0.00 0.23 0.172   0.005 532   7 10   10
Whitton Ranch (201e) 9/15/26 88.5   1.2 1510 39.9   4.6 0703 48.2   2.1 68   9 100   0 24   5 2.3   0.1 12.3   0.1 1610 SE | 145 0.00 0.29 0.155   0.005 428   5 20   10
Lytton East (Shop Hill Bottom) 9/15/26 87.0   2.0 1501 44.5   5.1 0643 49.0   2.6 67   13 96   7 23   5 3.1   0.6 16.5   3.5 1535 ESE | 121 0.00 0.27 0.185   0.001 530   5 40   10
Lytton East (Hill 5) 9/15/26 87.0   1.9 1404 48.1   3.4 0735 50.0   3.0 67   14 94   8 24   5 4.3   0.4 19.7   2.4 1628 SE | 146 0.00 0.25 0.176   0.006 465   4 30   10
Lytton West Lower (Lew 6) 9/15/26 87.1   1.8 1451 43.4   4.3 0650 49.0   2.4 68   13 100   8 25   5 2.7   0.4 17.8   3.2 1705 SSE | 166 0.00 0.28 0.180   0.003 534   2 40   10
Lytton West Hill (23PS) 9/15/26 86.0   1.9 1522 49.4   2.6 0622 50.1   2.4 66   13 91   4 27   7 3.3   0.5 16.9   4.1 1641 S | 186 0.00 0.26 0.185   0.003 543   1 80   20
Big River 9/15/26 85.6   0.5 1457 48.6   4.5 0718 51.5   2.3 71   13 97   11 31   9 2.5   0.6 15.7   0.6 1632 S | 184 0.00 0.28 0.175   0.005 543   0 90   20
Jimtown-North (Piccolo Ranch 15) 9/15/26 88.7   0.9 1513 42.4   1.6 0651 46.1   2.9 61   8 100   0 22   7 1.4   0.1 14.3   1.8 1536 S | 183 0.00 0.20 0.145   0.001 450   5 10   10
HWY 128/Chalk Hill Rd (Landslide) 9/15/26 88.6   0.4 1455 43.3   2.3 0711 48.9   2.7 67   9 95   2 25   6 2.0   0.1 14.2   0.3 1704 SSW | 192 0.00 0.31 0.152   0.006 445   2 40   10
N Chalk Hill Rd (Ranch 63) 9/15/26 86.0   1.3 1453 41.5   0.8 0705 47.6   2.8 65   8 96   2 26   8 2.3   0.4 15.9   0.3 1500 WSW | 242 0.00 0.29 0.156   0.006 457   4 20   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) 9/15/26 87.2   0.3 1452 41.3   2.7 0635 46.9   3.9 65   7 97   0 24   7 2.2   0.0 12.6   1.3 1513 W | 280 0.00 0.26 0.169   0.005 506   4 10   10
Red Tail 9/15/26 86.0   0.4 1528 44.5   4.7 0716 50.0   1.4 69   9 94   4 30   5 2.8   0.0 15.3   0.8 1610 S | 190 0.00 0.29 0.171   0.003 518   2 100   0
Franz Valley (Stornetta) 9/15/26 86.4   0.5 1418 42.1   1.0 0709 47.5   3.4 - 93   2 27   8 1.5   0.3 13.5   1.1 1715 SSE | 156 0.00 0.43 - - 70   10
Upper Dry Creek Valley 9/15/26 89.0   1.5 1453 44.8   4.5 0714 49.2   2.0 64   9 94   1 26   9 2.8   1.0 15.9   4.4 1806 E | 100 0.00 0.14 0.186   0.004 533   8 50   10
Lower Dry Creek Valley 9/15/26 86.2   2.5 1509 44.6   2.4 0641 48.9   1.8 66   11 100   0 27   8 2.9   1.6 18.2   5.1 1723 ESE | 112 0.00 0.26 0.175   0.016 498   1 60   10
Max   90.9 - 52.8 - 51.5 71 100 31 5.8 23.3 - - 0.00 0.43 0.216 559 -
Avg   - - - - 48.6 64 - - 2.9 - - - - - - - -
Min   85.6 - 39.9 - 44.4 46 82 15 1.4 12.3 - - 0.00 0.00 0.145 428 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 9/16/26 8:18 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) 9/15/26 87.5   1.0 1439 49.0   1.9 0707 51.5   1.0 69 86   2 33   12 0.0 5.8   2.3 1606 0.00 0.50 0.144   0.007 514   21 10
Windsor-East (Ranch 16) 9/15/26 84.2   2.6 1405 44.5   4.7 0704 49.4   1.7 71 95   5 29   9 3.7 15.3   1.0 1552 0.00 0.23 0.174   0.011 521   16 100
Mark West-North (Ranch 14) 9/15/26 84.7   2.4 1401 46.4   3.2 0520 49.4   1.9 69 94   2 29   10 2.0 13.1   1.4 1751 0.00 0.24 - - 60
Windsor-SE (Silk Rd) 9/15/26 83.8   1.7 1445 43.5   0.9 0710 49.7   2.6 72 95   2 29   9 1.9 12.2   2.3 1656 0.00 0.32 0.157   0.005 509   19 100
Fulton-NW (Ranch 5) 9/15/26 83.3   1.3 1350 45.3   0.6 0515 49.7   2.0 71 93   2 32   9 3.5 15.7   3.4 1617 0.00 0.23 0.169   0.002 528   29 100
Bisordi (Fulton) 9/15/26 84.0   0.6 1357 43.2   2.0 0520 50.6   1.4 74 94   0 37   10 2.1 13.0   0.2 1710 0.00 0.22 0.169   0.001 558   23 100
Windsor-South (Laughlin Rd) 9/15/26 85.1   1.6 1344 46.3   4.4 0657 50.6   1.6 71 94   2 30   11 - - - 0.00 0.17 - - 80
Fulton-SE (Barnes Rd) 9/15/26 83.4   1.5 1356 46.2   1.5 0702 50.5   1.4 71 92   3 33   9 2.5 13.6   0.5 1748 0.00 0.29 - - 100
Fulton-SW (Ranch 21) 9/15/26 84.2   1.2 1348 45.3   0.2 0517 49.9   2.1 72 94   0 32   10 3.0 15.0   1.0 1609 0.00 0.20 0.173   0.005 556   26 100
NW Santa Rosa (Piner Road) 9/15/26 82.7   1.4 1341 43.6   0.6 0716 52.8   2.0 82 100   0 40   14 2.2 15.1   0.2 1616 0.00 0.00 - - 100
River Rd South (Denner Ranch) 9/15/26 82.2   2.1 1321 43.3   2.1 0732 -14.4   17.8 24 100   0 0   0 4.4 19.1   1.3 1549 - - - - 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) 9/15/26 88.2   1.8 1326 43.7   1.6 0713 50.3   1.7 73 97   0 31   12 - - - 0.02 0.24 - - 20
SunnyView Vineyard (SCWC) 9/15/26 83.3   1.8 1327 42.1   0.1 0515 48.7   2.4 73 95   1 32   10 2.0 13.0   0.1 1349 0.00 0.27 0.141   0.002 450   24 100
Guerneville Rd West (Balletto) 9/15/26 81.8   2.7 1318 44.6   0.6 0715 51.4   1.9 77 95   1 41   15 2.6 15.1   2.0 1734 0.00 0.43 - - 90
Sanchietti Ranch 9/15/26 83.2   1.5 1317 44.2   0.2 0424 52.0   1.2 - 96   0 42   10 2.9 16.4   1.8 1546 0.00 0.28 - - 100
Occidental Rd (Sebastopol) 9/15/26 82.9   1.6 1324 43.6   0.4 0717 53.4   2.1 84 100   0 40   14 2.3 16.2   0.4 1526 0.00 0.20 - - 100
Harper's Rest (Windsor-West) 9/15/26 85.3   1.4 1610 45.7   1.6 0653 49.8   2.6 - 98   3 27   6 1.9 10.2   1.6 1835 0.00 0.45 - - 50
Lower Westside Rd (Ranch 12) 9/15/26 85.1   1.9 1409 44.3   1.6 0705 49.9   2.9 71 98   2 29   9 1.9 13.0   2.0 1248 0.00 0.45 - - 100
Guerneville (Laughlin Rd) 9/15/26 83.5   0.7 1257 43.6   0.6 0708 48.6   0.5 71 96   1 33   8 2.2 14.8   2.1 1601 0.00 0.81 - - 100
Korbel (Winery) 9/15/26 84.4   0.0 1256 46.0   1.4 0640 50.2   1.1 71 97   1 33   6 0.7 10.2   2.8 1341 0.00 0.52 - - 100
Forestville (Shone Farms) 9/15/26 84.6   2.0 1459 47.2   1.7 0659 51.4   2.5 72 94   0 34   12 1.9 13.9   0.3 1504 0.00 0.43 0.162   0.001 507   20 100
Forestville-NE (Ranch 30) 9/15/26 84.3   2.1 1515 44.2   3.2 0733 51.7   1.8 75 98   0 38   12 2.7 16.0   3.9 1548 0.00 0.40 0.171   0.000 527   23 10
Foggy Bend (Ranch 41) 9/15/26 84.6   1.4 1504 45.2   1.0 0726 52.7   1.3 76 97   0 41   8 1.8 13.0   0.1 1513 0.00 0.42 0.163   0.001 527   21 100
Last Stop 9/15/26 85.5   2.4 1501 43.9   0.1 0650 50.8   2.4 74 98   0 33   9 2.0 14.3   1.2 1548 0.00 0.39 0.165   0.005 523   24 70
Green Valley Vineyard 9/15/26 82.1   2.0 1450 46.9   0.4 0650 50.8   2.5 74 97   0 32   10 1.9 14.5   0.9 1610 0.00 0.57 0.035   0.006 18   11 100
Park Royal 9/15/26 83.0   1.5 1333 45.0   0.7 0539 49.6   2.5 71 92   0 32   9 - - - 0.00 0.21 - - 100
Merino 9/15/26 85.7   1.0 1346 41.8   0.3 0521 51.1   1.9 77 100   0 37   9 2.1 13.4   2.3 1535 0.00 0.33 0.166   0.001 544   30 100
Green Valley (Sanchietti) 9/15/26 84.4   2.5 1323 39.5   0.7 0702 - - - - - - - - - - - 100
Keefer Ranch (Green Valley) 9/15/26 80.9   2.5 1444 42.7   0.0 0712 50.8   1.8 77 98   0 41   14 - - - 0.00 0.48 - - 100
Graton-West (Dutton Ranch) 9/15/26 82.1   3.1 1306 43.7   0.4 0713 52.8   3.1 82 100   0 37   15 2.0 13.1   0.9 1606 0.00 0.61 - - 100
Graton-South (Mill Station Rd) 9/15/26 78.5   3.0 1222 42.1   0.1 0710 50.4   1.9 79 96   1 44   19 1.1 10.5   1.3 1523 0.00 0.40 - - 70
Occidental (Horseshoe Bend) 9/15/26 76.0   3.1 1451 51.0   0.1 0411 52.2   2.2 - 97   5 46   17 - - - 0.00 0.75 - - 90
Sexton Valley (Jacqueline's Blk) 9/15/26 79.2   2.0 1246 43.3   1.5 0507 52.4   1.1 82 100   0 48   11 1.3 14.0   0.3 1702 0.00 0.27 - - 90
Sebastopol Hills (Burnside Rd) 9/15/26 76.2   3.1 1254 50.8   1.9 0700 53.6   1.2 85 98   6 51   13 3.0 16.6   2.6 1655 0.00 0.00 - - 90
Pleasant Hill 9/15/26 82.3   0.9 1302 47.5   2.0 0505 51.5   1.3 - 98   1 37   7 2.3 15.7   1.8 1607 0.00 0.49 - - 100
Seaview/Fort Ross (Hirsch) 9/15/26 71.9   3.7 1435 57.1   0.9 2139 47.7   1.2 55 76   1 41   16 2.5 10.5   1.3 1246 0.00 0.07 0.152   0.009 542   2 60
Max   88.2 - 57.1 - 53.6 85 100 51 4.4 19.1 - 0.02 0.81 0.174 558 -
Avg   - - - - 49.0 73 - - 2.2 - - - - - - -
Min   71.9 - 39.5 - -14.4 24 76 0 0.0 5.8 - 0.00 0.00 0.035 18 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 9/16/26 8:18 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 9/15/26 83.7   0.1 1437 50.2   2.7 2114 49.3   4.0 96   17 31   10 2.0   0.0 11.0   0.6 1716 SSE | 150 0.00 0.02 0.128   0.003 394   21 100   0
Lower Bennett Valley 9/15/26 85.2   0.2 1419 41.4   0.6 0448 49.5   2.9 100   0 30   9 3.0   0.4 13.5   2.1 1532 SW | 219 0.00 0.39 0.160   0.007 499   21 100   0
Kenwood (Wildwood) 9/15/26 84.2   2.1 1428 44.2   0.1 0424 49.8   4.3 100   4 35   16 2.6   0.3 12.1   2.6 1505 WSW | 252 0.00 0.21 0.157   0.006 488   15 70   20
Sonoma Valley (Bedrock) 9/15/26 79.7   6.6 1411 44.0   0.2 0500 48.1   4.0 93   0 37   18 - - - - 0.00 0.29 - - 100   20
Sonoma-West (Arnold) 9/15/26 79.5   7.9 1328 46.0   3.0 0415 48.9   4.5 89   4 38   19 2.8   0.1 12.5   4.8 1423 SE | 132 0.00 0.35 0.183   0.021 578   8 90   20
Sonoma Valley HS 9/15/26 78.6   8.7 1413 47.0   1.0 0503 52.4   2.4 96   4 46   21 2.0   0.3 12.3   2.2 1628 E | 90 0.00 0.01 0.153   0.014 519   6 100   10
Sonoma East (Bundschu01) 9/15/26 78.4   9.0 1424 45.0   2.0 0518 49.8   3.6 94   2 39   19 3.7   0.9 15.1   4.8 1551 SE | 128 0.00 0.23 0.167   0.017 532   10 100   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) 9/15/26 78.9   10.7 1402 45.0   1.2 0505 49.9   3.4 93   1 39   18 2.8   0.4 13.1   1.3 1524 SE | 140 0.00 0.18 - - 100   10
Ricci Vineyards (Carneros) 9/15/26 76.3   9.8 1414 46.6   1.7 0530 50.3   2.3 92   3 41   18 4.1   0.6 16.0   1.4 1505 SSE | 165 0.00 0.12 0.166   0.029 541   4 90   10
Carneros (Ranch 71) 9/15/26 74.7   10.3 1406 54.7   1.1 2248 53.1   4.3 92   5 44   22 4.0   0.5 13.6   8.2 1510 S | 174 0.00 0.07 0.151   0.041 526   7 90   10
Carneros Upper (Ranch 81) 9/15/26 76.7   8.6 1431 54.4   0.4 2252 52.9   4.1 - - 6.0   1.2 17.9   4.8 1535 SSW | 197 - - - - 90   10
Carneros Lower (Ranch 81) 9/15/26 77.6   7.9 1402 50.5   4.0 0424 47.8   0.9 100   0 0   0 1.8   0.4 13.1   0.5 1542 S | 184 0.00 0.01 0.025   0.007 0   0 90   10
Rohnert Park-West (Stony Point) 9/15/26 82.1   2.0 1308 40.3   1.1 0504 50.9   1.4 98   0 40   9 2.5   0.8 21.3   5.3 1543 WSW | 252 0.00 0.19 - - 90   10
Cartograph Wines Base 9/15/26 79.3   1.8 1243 49.6   2.1 0650 53.6   0.8 98   4 45   9 4.0   0.6 22.7   3.6 1530 SSW | 212 0.00 0.30 0.143   0.015 515   10 50   10
Cartograph Wines Remote 9/15/26 81.5   1.9 1215 46.2   0.8 0510 - - - - - - - - - - - 90   10
Rice-Spivak Vineyard 9/15/26 83.0   1.3 1211 39.2   0.6 0446 - - - - - - - - - - - 90   10
Penngrove (Asellus) 9/15/26 85.4   0.7 1346 42.3   1.1 0511 49.5   1.8 96   1 28   7 2.1   0.1 13.8   2.4 1203 SSW | 202 0.00 0.55 - - 60   10
Petaluma (Ranch 10) 9/15/26 85.3   1.1 1415 44.1   0.1 0422 49.9   2.6 94   2 32   11 1.7   0.1 13.1   0.0 1549 W | 276 0.00 0.09 0.152   0.010 490   2 100   10
Max   85.4 - 54.7 - 53.6 100 46 6.0 22.7 - - 0.00 0.55 0.183 578 -
Avg   - - - - 50.4 - - 3.0 - - - - - - - -
Min   74.7 - 39.2 - 47.8 89 0 1.7 11.0 - - 0.00 0.01 0.025 0 -