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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 9/18/26 1:37 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) 9/17/26 75.3   1.2 1453 47.6   0.0 0112 48.8   1.2 75   3 100   0 36   3 6.0   1.0 25.0   3.7 2056 NW | 315 0.00 0.33 0.154   0.010 510   41 100   10
Rockpile Lower (Cooley) 9/17/26 77.5   3.1 1525 51.4   3.3 0005 49.7   0.1 69   7 89   11 35   1 2.7   0.1 17.7   2.6 1715 WNW | 282 0.00 0.33 - - 40   10
Cloverdale-East (Ranch 83) 9/17/26 80.8   0.2 1544 51.9   1.6 0059 51.4   0.2 - - - 2.2   1.0 13.2   6.4 1416 SSW | 194 0.00 0.12 0.151   0.000 480   13 100   20
Cloverdale-SE (Ranch 38) 9/17/26 77.8   0.2 1620 54.8   2.8 0657 52.4   0.6 69   5 91   3 41   1 4.1   1.4 17.5   7.2 1436 S | 170 0.00 0.11 0.143   0.002 440   1 60   20
Geyserville-North (Hoffman) 9/17/26 79.0   0.7 1603 52.0   1.4 0101 53.3   0.4 69   2 91   0 44   3 2.0   0.8 12.3   5.6 1714 SSE | 164 0.00 0.00 0.143   0.001 466   5 40   20
Geyserville (Ranch 3) 9/17/26 78.1   0.5 1520 52.5   0.6 0048 51.2   0.0 64   4 87   1 39   3 1.8   1.1 12.2   2.9 1349 SE | 144 0.00 0.13 0.135   0.004 430   6 70   20
Geyserville-East (Ranch 40) 9/17/26 76.0   1.7 1426 52.8   0.3 0549 52.6   0.4 72   6 96   1 45   4 4.7   1.5 23.1   2.2 1658 SSW | 196 0.00 0.12 0.150   0.008 475   25 30   20
Geyserville-South (Nervo Station) 9/17/26 76.8   1.2 1621 53.5   0.7 0104 - - - - 2.1   0.6 13.1   2.7 1449 ESE | 107 0.00 0.21 - - 40   20
Peterson (Ranch 09) 9/17/26 76.4   0.8 1620 50.8   0.0 0101 50.1   0.3 67   2 90   1 40   3 2.2   0.5 13.8   0.7 1438 SSE | 164 0.00 0.20 0.144   0.006 476   22 40   20
Crazy Creek Ranch 9/17/26 77.8   0.4 1608 51.3   1.0 0034 52.8   0.1 70   3 90   1 45   2 2.0   0.4 14.4   0.8 1429 SSW | 202 0.00 0.23 0.149   0.008 500   26 20   20
Whitton Ranch (201e) 9/17/26 79.0   0.2 1635 47.2   0.0 0101 51.0   0.3 70   1 100   4 39   2 1.9   0.5 11.5   3.4 1707 SSE | 166 0.00 0.29 0.132   0.004 408   22 30   20
Lytton East (Shop Hill Bottom) 9/17/26 78.2   0.0 1609 47.9   0.7 0115 50.2   0.2 68   2 95   1 37   1 2.2   0.8 14.9   3.1 1224 S | 184 0.00 0.27 0.153   0.000 501   5 50   20
Lytton East (Hill 5) 9/17/26 76.6   0.1 1541 51.2   0.8 0419 50.9   0.0 68   3 94   1 40   1 3.2   1.0 18.2   2.6 1412 S | 178 0.00 0.25 0.145   0.005 444   17 40   20
Lytton West Lower (Lew 6) 9/17/26 77.6   0.3 1611 47.6   0.3 0124 50.0   0.7 69   1 94   2 39   0 2.4   0.4 14.4   1.0 1421 SE | 125 0.00 0.28 0.153   0.004 499   11 50   20
Lytton West Hill (23PS) 9/17/26 76.6   0.1 1624 51.2   1.1 0418 51.1   0.3 68   3 94   4 40   0 2.4   0.8 14.1   2.8 1629 ESE | 118 0.00 0.26 0.158   0.005 524   21 90   20
Big River 9/17/26 76.0   0.1 1545 51.4   0.6 0402 52.6   0.1 74   1 97   2 47   3 2.1   0.5 15.3   0.2 1721 SSW | 205 0.00 0.28 0.145   0.002 499   10 70   10
Jimtown-North (Piccolo Ranch 15) 9/17/26 77.6   0.1 1601 50.3   0.5 0057 49.6   0.2 64   2 91   0 37   2 1.8   0.0 15.8   0.4 1540 WSW | 237 0.00 0.20 0.131   0.010 423   23 20   20
HWY 128/Chalk Hill Rd (Landslide) 9/17/26 78.9   1.3 1603 50.3   0.1 0039 51.3   0.1 69   1 92   0 39   1 2.0   0.3 12.5   2.9 1350 SW | 230 0.00 0.31 0.135   0.010 423   26 50   20
N Chalk Hill Rd (Ranch 63) 9/17/26 76.2   0.6 1529 49.4   0.4 0051 50.3   0.4 69   1 92   1 41   3 2.0   0.7 13.1   3.4 1622 SW | 231 0.00 0.29 0.135   0.007 431   24 30   20
Newman Knights Valley 9/17/26 77.1   1.1 1530 50.4   3.6 0101 52.9   0.0 71   1 84   1 55   1 2.7   0.4 15.5   1.2 1737 SW | 235 0.00 0.40 - - 10   10
Knights Valley (Bavarian Lion) 9/17/26 77.8   2.0 1531 47.3   3.8 0042 50.0   0.3 69   3 93   0 37   1 2.2   0.4 13.4   0.7 1549 NW | 309 0.00 0.26 0.141   0.010 462   30 0   0
Red Tail 9/17/26 77.0   1.2 1552 48.0   0.8 0117 51.7   0.5 74   1 92   1 47   1 2.5   0.8 18.3   1.8 1353 S | 181 0.00 0.29 0.145   0.010 491   36 100   10
Franz Valley (Stornetta) 9/17/26 76.9   1.4 1524 48.6   3.1 0059 50.4   0.5 - 93   4 40   1 1.6   1.4 12.4   8.9 1408 S | 172 0.00 0.43 - - 50   10
Upper Dry Creek Valley 9/17/26 80.1   0.7 1436 51.8   1.0 0059 51.0   0.6 65   4 91   0 36   2 2.0   0.7 11.6   4.1 1604 ESE | 113 0.00 0.14 0.153   0.003 494   3 60   20
Lower Dry Creek Valley 9/17/26 78.1   0.4 1615 48.2   0.8 0406 50.3   0.6 68   1 100   2 39   0 1.2   0.9 14.7   1.8 1730 W | 261 0.00 0.26 0.140   0.004 472   11 70   20
Max   80.8 - 54.8 - 53.3 75 100 55 6.0 25.0 - - 0.00 0.43 0.158 524 -
Avg   - - - - 51.1 69 - - 2.5 - - - - - - - -
Min   75.3 - 47.2 - 48.8 64 84 35 1.2 11.5 - - 0.00 0.00 0.131 408 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 9/18/26 1:37 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) 9/17/26 77.4   1.1 1552 51.1   1.6 0254 52.3   0.3 72 86   2 48   2 0.0 6.4   6.4 0946 0.00 0.50 0.118   0.012 445   36 20
Windsor-East (Ranch 16) 9/17/26 76.9   2.9 1520 47.2   5.2 0411 50.8   1.0 71 95   4 41   3 2.3 14.6   1.5 1458 0.00 0.23 0.143   0.002 456   24 100
Mark West-North (Ranch 14) 9/17/26 77.2   1.8 1534 49.4   4.6 0307 50.9   0.5 70 96   4 41   0 1.2 11.0   3.5 1227 0.00 0.24 - - 70
Windsor-SE (Silk Rd) 9/17/26 75.9   0.9 1533 45.9   3.6 0337 50.7   1.2 74 96   2 43   1 1.8 11.4   0.7 1555 0.00 0.32 0.129   0.008 428   43 80
Fulton-NW (Ranch 5) 9/17/26 75.4   1.6 1515 47.5   3.4 0348 51.0   1.1 72 95   2 45   0 2.1 14.9   2.7 1415 0.00 0.23 0.138   0.005 461   26 100
Bisordi (Fulton) 9/17/26 76.0   1.9 1515 45.4   5.6 0400 52.1   1.2 76 95   3 50   3 1.8 13.4   0.4 1525 0.00 0.22 0.140   0.002 479   22 100
Windsor-South (Laughlin Rd) 9/17/26 77.2   1.0 1418 49.7   3.2 0235 51.5   0.4 72 94   2 42   0 - - - 0.00 0.17 - - 90
Fulton-SE (Barnes Rd) 9/17/26 76.0   2.6 1507 49.1   4.3 0347 52.2   0.3 72 93   3 46   3 1.2 14.3   1.8 1603 0.00 0.29 - - 80
Fulton-SW (Ranch 21) 9/17/26 75.9   2.8 1443 47.6   4.5 0344 51.3   0.8 73 95   1 44   3 2.5 13.7   2.9 1556 0.00 0.20 0.151   0.006 502   1 80
NW Santa Rosa (Piner Road) 9/17/26 75.3   2.7 1454 45.7   4.1 0318 54.1   1.6 82 100   0 52   3 1.6 13.1   2.3 1701 0.00 0.00 - - 80
River Rd South (Denner Ranch) 9/17/26 75.7   2.1 1454 46.6   2.7 0336 4.5   24.3 37 100   0 0   0 3.1 16.7   1.8 1544 - - - - 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) 9/17/26 79.8   1.6 1511 46.0   2.4 0320 50.9   1.2 72 97   0 40   2 - - - 0.00 0.24 - - 30
SunnyView Vineyard (SCWC) 9/17/26 76.2   2.0 1448 44.8   2.5 0332 49.8   1.2 73 96   2 41   4 1.7 13.4   1.5 1538 0.00 0.27 0.119   0.008 384   50 80
Guerneville Rd West (Balletto) 9/17/26 75.4   2.5 1435 47.8   1.1 0314 52.4   0.9 76 95   2 49   5 2.1 13.6   1.1 1457 0.00 0.43 - - 100
Sanchietti Ranch 9/17/26 75.5   1.7 1523 47.6   1.7 0321 53.7   0.6 - 95   3 54   2 2.4 16.0   1.2 1545 0.00 0.28 - - 80
Occidental Rd (Sebastopol) 9/17/26 77.0   2.6 1432 47.2   2.3 0305 55.5   1.2 86 100   0 53   3 2.2 15.6   2.8 1732 0.00 0.20 - - 80
Harper's Rest (Windsor-West) 9/17/26 77.3   0.5 1527 48.0   1.3 0307 50.1   0.4 - 96   2 39   1 1.6 12.7   1.7 1650 0.00 0.45 - - 60
Lower Westside Rd (Ranch 12) 9/17/26 76.7   0.8 1514 47.5   2.1 0334 50.3   0.9 72 95   2 41   1 1.7 15.9   1.1 1635 0.00 0.45 - - 80
Guerneville (Laughlin Rd) 9/17/26 77.0   3.0 1325 45.1   2.5 0320 49.4   1.5 73 95   2 40   5 1.4 14.0   2.3 1656 0.00 0.81 - - 80
Korbel (Winery) 9/17/26 76.0   1.5 1419 47.8   2.2 0247 51.1   0.8 75 96   1 44   2 1.0 12.9   1.5 1500 0.00 0.52 - - 80
Forestville (Shone Farms) 9/17/26 77.4   1.1 1518 47.8   2.7 0334 51.8   0.5 73 96   3 46   1 1.8 11.8   1.8 1520 0.00 0.43 0.123   0.015 401   69 80
Forestville-NE (Ranch 30) 9/17/26 76.0   0.1 1511 47.2   1.6 0331 52.2   0.6 77 98   3 48   0 2.0 14.4   0.1 1727 0.00 0.40 0.129   0.011 428   55 20
Foggy Bend (Ranch 41) 9/17/26 76.2   0.7 1510 47.6   2.9 0340 52.7   0.7 77 96   1 51   2 2.2 14.9   1.5 1635 0.00 0.42 0.127   0.013 431   60 80
Last Stop 9/17/26 77.0   0.5 1412 45.9   2.9 0331 51.1   0.7 75 97   1 45   2 1.7 13.4   0.6 1507 0.00 0.39 0.125   0.011 423   54 50
Green Valley Vineyard 9/17/26 74.3   1.1 1444 48.6   0.8 0252 51.5   0.3 76 97   2 46   3 1.9 13.4   6.4 1630 0.00 0.57 0.023   0.003 1   1 80
Park Royal 9/17/26 75.3   0.8 1400 47.8   2.8 0331 50.9   0.6 72 93   0 43   3 - - - 0.00 0.21 - - 80
Merino 9/17/26 78.6   3.3 1454 45.7   2.0 0326 52.5   0.8 78 100   3 45   5 1.4 11.8   3.1 1604 0.00 0.33 0.128   0.019 430   70 100
Green Valley (Sanchietti) 9/17/26 77.4   1.0 1419 42.0   4.1 0302 - - - - - - - - - - - 100
Keefer Ranch (Green Valley) 9/17/26 75.1   2.1 1449 45.3   1.7 0252 51.3   0.9 78 96   2 49   3 - - - 0.00 0.48 - - 80
Graton-West (Dutton Ranch) 9/17/26 76.9   1.0 1432 45.8   1.7 0244 54.5   1.9 85 100   0 46   2 1.5 10.5   5.0 1548 0.00 0.61 - - 80
Graton-South (Mill Station Rd) 9/17/26 73.5   3.0 1420 48.0   4.5 0312 51.4   1.5 78 96   0 50   4 0.7 8.1   1.5 1622 0.00 0.41 - - 50
Occidental (Horseshoe Bend) 9/17/26 70.6   0.8 1410 51.2   0.6 0115 52.3   0.2 - 97   1 53   3 - - - 0.00 0.75 - - 70
Sexton Valley (Jacqueline's Blk) 9/17/26 75.3   2.9 1352 48.9   0.2 0301 53.2   0.7 80 98   2 51   5 1.2 14.8   1.1 1508 0.00 0.27 - - 70
Sebastopol Hills (Burnside Rd) 9/17/26 71.2   2.5 1418 52.5   0.6 0258 53.9   0.3 82 99   0 57   4 1.9 14.3   3.4 1541 0.00 0.00 - - 70
Pleasant Hill 9/17/26 75.6   2.4 1513 50.6   0.0 0102 52.3   0.1 - 96   2 45   4 2.0 13.4   6.0 1744 0.00 0.49 - - 90
Seaview/Fort Ross (Hirsch) 9/17/26 65.8   3.0 1406 50.5   1.6 0144 50.8   1.4 81 94   0 58   8 2.1 12.6   1.4 1341 0.00 0.07 0.127   0.003 502   31 40
Max   79.8 - 52.5 - 55.5 86 100 58 3.1 16.7 - 0.00 0.81 0.151 502 -
Avg   - - - - 50.5 75 - - 1.7 - - - - - - -
Min   65.8 - 42.0 - 4.5 37 86 0 0.0 6.4 - 0.00 0.00 0.023 1 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 9/18/26 1:37 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 9/17/26 74.6   3.0 1543 49.1   3.9 0401 50.9   0.4 97   1 43   3 1.7   0.4 11.5   0.0 1358 SE | 146 0.00 0.02 0.095   0.007 307   42 90   10
Lower Bennett Valley 9/17/26 75.2   3.1 1513 47.4   5.4 0046 51.9   0.8 100   5 45   5 2.1   1.8 13.6   5.6 1651 SSW | 199 0.00 0.39 0.100   0.030 316   146 80   10
Kenwood (Wildwood) 9/17/26 76.5   2.4 1617 50.9   2.8 0059 51.4   0.2 94   5 42   3 2.1   1.2 14.8   6.3 1814 NNW | 335 0.00 0.21 0.102   0.028 330   113 50   10
Sonoma Valley (Bedrock) 9/17/26 75.3   2.9 1527 48.7   4.2 0618 50.3   0.2 94   5 42   3 - - - - 0.00 0.29 - - 80   10
Sonoma-West (Arnold) 9/17/26 77.1   4.0 1541 50.2   6.9 0049 51.6   0.1 89   7 43   3 2.7   1.9 16.7   4.2 1721 WNW | 285 0.00 0.35 0.115   0.050 349   209 70   10
Sonoma Valley HS 9/17/26 75.8   4.2 1449 53.4   3.2 0040 54.5   0.5 94   4 51   4 1.8   1.3 9.6   1.9 1846 W | 261 0.00 0.01 0.109   0.030 362   141 80   10
Sonoma East (Bundschu01) 9/17/26 74.4   1.3 1618 50.1   5.2 0054 51.9   0.1 90   2 47   0 2.6   1.5 15.6   4.8 1453 SE | 130 0.00 0.23 0.100   0.049 295   211 80   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) 9/17/26 76.0   2.5 1423 50.8   4.6 0059 52.0   0.1 87   0 44   1 2.4   1.8 12.8   3.7 1457 SE | 129 0.00 0.18 - - 100   10
Ricci Vineyards (Carneros) 9/17/26 75.0   1.3 1538 56.1   2.4 0054 53.0   1.2 89   1 45   0 4.1   0.5 17.1   9.0 1842 W | 278 0.00 0.12 0.108   0.040 318   174 90   10
Carneros (Ranch 71) 9/17/26 73.4   2.4 1609 55.7   0.4 0020 52.6   0.8 88   1 49   1 3.8   2.6 19.3   2.0 1853 WSW | 254 0.00 0.07 0.100   0.050 304   210 70   10
Carneros Upper (Ranch 81) 9/17/26 74.0   1.8 1641 56.2   1.3 0103 52.3   0.6 - - 5.8   3.6 25.2   5.5 1855 W | 261 - - - - 70   10
Carneros Lower (Ranch 81) 9/17/26 76.4   3.2 1552 56.0   1.7 0101 53.4   0.6 89   3 45   6 1.4   0.1 11.6   7.8 1717 SSE | 167 0.00 0.01 0.020   0.003 4   1 70   10
Rohnert Park-West (Stony Point) 9/17/26 74.7   4.3 1402 48.8   6.1 2355 53.4   0.7 96   2 51   5 1.7   1.3 17.0   1.2 1608 W | 265 0.01 0.20 - - 70   10
Cartograph Wines Base 9/17/26 74.0   5.2 1507 54.1   1.0 0518 55.1   0.8 96   0 55   7 3.3   2.0 18.3   9.2 1811 SW | 221 0.00 0.30 0.110   0.007 372   69 30   10
Cartograph Wines Remote 9/17/26 73.4   2.3 1352 52.4   1.8 2348 - - - - - - - - - - - 70   10
Rice-Spivak Vineyard 9/17/26 75.2   1.8 1344 47.4   7.8 2356 - - - - - - - - - - - 70   10
Penngrove (Asellus) 9/17/26 78.0   6.6 1450 48.9   5.0 2347 51.9   0.2 95   1 39   10 2.1   0.8 17.4   1.5 1622 W | 270 0.00 0.57 - - 40   10
Petaluma (Ranch 10) 9/17/26 77.8   6.1 1602 50.6   4.9 0022 53.0   0.7 95   5 40   10 1.5   1.5 11.7   4.1 1644 WSW | 253 0.00 0.09 0.110   0.016 354   64 100   10
Max   78.0 - 56.2 - 55.1 100 55 5.8 25.2 - - 0.01 0.57 0.115 372 -
Avg   - - - - 52.4 - - 2.6 - - - - - - - -
Min   73.4 - 47.4 - 50.3 87 39 1.4 9.6 - - 0.00 0.01 0.020 4 -