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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 8/22/26 2:29 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) 8/20/26 86.4   6.3 1654 54.9   8.5 0745 50.4   0.7 54   11 86   26 31   6 4.8   0.4 15.8   0.2 1701 S | 189 0.00 0.05 0.211   0.041 606   39 40   10
Rockpile Lower (Cooley) 8/20/26 90.9   4.8 1643 51.4   2.4 0551 53.2   0.8 68   10 100   4 29   4 1.8   0.1 10.4   1.2 1443 E | 98 0.00 0.02 - - 0   0
Cloverdale-East (Ranch 83) 8/21/26 91.6   1.2 1629 52.4   1.1 0245 52.7   0.5 - - - 2.0   1.0 14.2   0.8 1612 SE | 135 0.00 0.00 0.189   0.008 536   14 0   10
Cloverdale-SE (Ranch 38) 8/21/26 89.2   1.4 1616 54.1   1.4 0612 54.5   0.5 67   7 96   2 34   4 4.3   1.7 17.2   2.5 1554 SSE | 168 0.00 0.01 0.190   0.012 494   22 0   0
Geyserville-North (Hoffman) 8/21/26 89.0   2.4 1540 51.6   1.8 0215 55.6   0.1 69   5 93   2 37   2 1.9   0.6 12.0   0.1 1600 SSE | 152 0.00 0.00 0.166   0.018 492   44 10   10
Geyserville (Ranch 3) 8/21/26 88.4   1.7 1537 53.0   1.8 0202 54.0   0.2 65   7 100   0 32   4 2.0   0.6 11.6   0.4 1350 SE | 137 0.00 0.00 0.172   0.015 500   36 0   10
Geyserville-East (Ranch 40) 8/21/26 86.3   2.5 1549 53.8   1.7 0331 55.3   0.9 73   6 99   1 37   0 5.3   1.0 17.9   2.7 1542 S | 191 0.00 0.00 0.184   0.017 509   18 10   10
Geyserville-South (Nervo Station) 8/21/26 86.5   1.5 1608 53.9   0.4 0232 - - - - 2.4   0.4 13.1   0.3 1610 SE | 128 0.00 0.00 - - 40   10
Peterson (Ranch 09) 8/21/26 86.1   1.8 1520 51.4   2.0 0217 52.9   0.4 66   5 90   5 34   4 2.2   0.6 13.5   1.4 1359 SSW | 206 0.00 0.00 0.169   0.016 509   40 0   0
Crazy Creek Ranch 8/21/26 88.1   1.8 1550 51.8   0.8 0219 55.5   0.5 71   4 96   0 37   0 1.9   0.2 12.6   2.4 1706 ESE | 121 0.00 0.00 0.166   0.010 513   14 10   10
Whitton Ranch (201e) 8/21/26 89.7   1.8 1635 47.5   0.9 0200 54.0   0.3 69   4 100   2 33   4 2.2   0.3 10.7   1.9 1704 SSE | 147 0.00 0.03 0.168   0.015 478   22 40   10
Lytton East (Shop Hill Bottom) 8/21/26 86.6   2.1 1549 53.9   0.5 0115 53.7   0.7 68   6 94   6 33   1 2.8   0.2 15.5   0.6 1702 SE | 137 0.00 0.00 0.180   0.019 529   37 40   10
Lytton East (Hill 5) 8/21/26 86.3   1.9 1555 54.9   1.8 0116 54.0   0.7 69   6 95   3 34   3 3.8   0.3 17.3   0.3 1708 SE | 137 0.00 0.00 0.173   0.020 474   32 70   20
Lytton West Lower (Lew 6) 8/21/26 86.8   2.5 1522 52.1   0.1 0116 53.8   0.5 69   6 94   6 33   0 2.6   0.4 13.9   1.1 1701 S | 172 0.00 0.01 0.177   0.015 530   33 40   10
Lytton West Hill (23PS) 8/21/26 85.9   2.7 1535 55.4   1.8 0059 54.5   0.5 70   7 96   4 33   1 3.3   0.2 15.1   0.3 1604 SSE | 163 0.00 0.01 0.184   0.019 544   28 70   20
Big River 8/21/26 85.0   2.0 1519 53.9   0.1 0137 55.5   0.8 72   5 96   3 41   2 2.4   0.4 14.8   1.4 1657 SSE | 153 0.00 0.00 0.175   0.011 536   3 70   20
Jimtown-North (Piccolo Ranch 15) 8/21/26 88.1   2.2 1654 50.3   1.7 0219 52.0   0.9 65   7 100   0 28   1 1.2   0.3 11.2   0.2 1556 SSW | 202 0.00 0.00 0.149   0.005 462   9 40   10
HWY 128/Chalk Hill Rd (Landslide) 8/21/26 87.1   1.7 1518 51.4   2.2 0059 53.9   0.1 68   4 94   1 32   2 2.0   0.5 12.1   1.5 1533 SSW | 206 0.00 0.00 0.151   0.002 433   19 40   10
N Chalk Hill Rd (Ranch 63) 8/21/26 85.1   1.0 1532 49.8   1.5 0212 52.9   0.3 68   4 93   4 35   0 2.0   0.4 12.7   2.8 1643 S | 172 0.00 0.00 0.157   0.006 452   9 40   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) 8/21/26 87.6   1.5 1540 49.3   0.5 0238 51.6   0.4 67   3 97   0 25   5 2.2   0.1 12.2   0.1 1718 W | 271 0.00 0.00 0.183   0.016 543   24 20   10
Red Tail 8/21/26 85.3   1.2 1434 50.1   1.5 0203 54.1   0.2 70   3 92   0 38   4 2.8   0.1 14.0   0.0 1630 ESE | 113 0.00 0.01 0.175   0.009 524   12 70   20
Franz Valley (Stornetta) 8/21/26 86.3   0.6 1537 51.1   0.2 0059 51.4   1.1 - 92   1 29   2 1.6   0.3 10.9   1.0 1540 WNW | 284 0.00 0.00 - - 50   20
Upper Dry Creek Valley 8/21/26 89.1   2.2 1629 51.5   1.7 0223 54.3   0.1 67   5 94   1 31   2 2.2   1.0 11.4   2.9 1635 S | 188 0.00 0.00 0.184   0.008 536   2 0   0
Lower Dry Creek Valley 8/21/26 85.5   2.4 1544 52.0   0.7 0059 54.4   0.4 70   6 100   0 33   2 2.1   0.2 14.2   3.1 1606 ESE | 115 0.00 0.01 0.175   0.018 513   31 100   20
Max   91.6 - 55.4 - 55.6 73 100 41 5.3 17.9 - - 0.00 0.03 0.190 544 -
Avg   - - - - 53.8 69 - - 2.5 - - - - - - - -
Min   85.0 - 47.5 - 51.4 65 90 25 1.2 10.7 - - 0.00 0.00 0.149 433 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 8/22/26 2:29 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) 8/21/26 87.7   4.3 1621 54.7   0.8 0049 55.0   1.2 70 84   2 38   5 0.0 0.8   0.8 1924 0.00 0.02 0.145   0.001 492   12 40
Windsor-East (Ranch 16) 8/21/26 82.5   3.2 1531 50.9   2.9 0057 54.0   0.4 71 91   3 38   4 3.4 15.7   0.7 1637 0.00 0.00 0.175   0.014 507   9 90
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) 8/21/26 85.0   5.6 1648 50.7   1.9 0059 54.6   0.6 73 96   1 33   12 1.9 11.0   1.0 1808 0.00 0.02 0.160   0.008 499   8 100
Fulton-NW (Ranch 5) 8/21/26 81.3   3.6 1620 52.7   0.9 0101 54.6   0.6 73 94   1 41   5 3.9 17.2   1.8 1514 0.00 0.00 0.175   0.016 520   1 100
Bisordi (Fulton) 8/21/26 81.9   4.2 1540 52.3   1.6 0101 56.0   0.9 75 92   2 46   6 2.4 12.6   0.4 1627 0.00 0.00 0.168   0.014 540   8 100
Windsor-South (Laughlin Rd) 8/21/26 85.1   4.1 1631 54.5   1.1 0057 54.4   0.7 72 94   0 34   8 - - - 0.00 0.00 - - 90
Fulton-SE (Barnes Rd) 8/21/26 80.8   3.9 1449 56.7   2.5 0328 54.9   0.8 72 92   3 43   5 1.5 12.6   0.2 2001 0.00 0.00 - - 100
Fulton-SW (Ranch 21) 8/21/26 81.6   5.0 1517 52.3   0.7 0059 54.3   13.2 73 100   0 40   40 2.9 13.9   1.4 1448 0.00 0.00 0.175   0.013 544   2 100
NW Santa Rosa (Piner Road) 8/21/26 82.6   5.4 1551 52.2   1.4 0049 57.6   0.7 83 100   0 44   9 1.9 9.6   1.1 1414 0.00 0.00 - - 100
River Rd South (Denner Ranch) 8/21/26 84.4   8.2 1610 51.2   1.3 0058 0.3   6.0 32 100   0 0   0 4.0 15.3   3.5 1423 - - - - 80
West Santa Rosa (LOV Vineyard) 8/21/26 83.5   5.4 1610 51.4   2.1 0059 54.5   0.5 74 96   1 36   10 1.6 10.5   4.3 1434 0.00 0.00 0.025   0.004 0   0 100
Guerneville Rd (Prokopakis) 8/21/26 88.5   5.6 1613 51.4   1.4 0059 54.9   0.4 73 97   0 30   11 - - - 0.00 0.02 - - 90
SunnyView Vineyard (SCWC) 8/21/26 81.9   5.5 1610 49.7   3.5 0101 53.8   0.4 73 95   0 39   9 1.8 12.8   0.5 1442 0.00 0.00 0.145   0.009 465   2 90
Guerneville Rd West (Balletto) 8/21/26 82.0   5.6 1618 51.8   1.7 0101 56.2   0.7 79 98   0 43   12 2.4 10.4   2.1 1647 0.00 0.11 - - 100
Sanchietti Ranch 8/21/26 81.6   4.8 1538 51.4   3.1 0059 56.9   0.7 - 95   0 49   8 2.8 11.5   3.1 1800 0.00 0.00 - - 100
Occidental Rd (Sebastopol) 8/21/26 82.2   5.9 1543 50.6   1.3 0059 59.3   0.3 90 100   0 56   13 2.2 12.7   1.5 1627 0.00 0.00 - - 100
Harper's Rest (Windsor-West) 8/21/26 86.1   3.8 1709 51.3   1.0 0101 53.4   0.8 - 95   1 32   7 1.7 9.9   1.6 1431 0.00 0.04 - - 80
Lower Westside Rd (Ranch 12) 8/21/26 83.7   3.5 1641 51.3   1.8 0051 54.1   0.5 72 96   1 34   9 1.8 12.1   0.3 1441 0.00 0.03 - - 100
Guerneville (Laughlin Rd) 8/21/26 80.4   1.0 1319 49.8   1.4 0052 53.2   0.2 72 93   1 43   1 2.1 14.5   0.7 1332 0.00 0.02 - - 100
Korbel (Winery) 8/21/26 81.3   1.3 1317 52.0   1.9 0059 54.1   0.0 73 93   2 42   2 0.9 14.8   2.6 1333 0.00 0.01 - - 100
Forestville (Shone Farms) 8/21/26 85.5   5.1 1645 52.4   0.5 0059 54.9   0.6 74 97   0 35   13 1.7 10.3   0.8 1523 0.00 0.04 0.153   0.000 484   31 100
Forestville-NE (Ranch 30) 8/21/26 85.9   4.8 1627 51.0   0.0 0103 55.4   0.5 76 98   0 38   10 2.1 13.6   0.4 1514 0.00 0.03 0.164   0.001 510   22 70
Foggy Bend (Ranch 41) 8/21/26 83.5   2.5 1445 52.0   1.2 0050 56.2   0.6 76 95   1 45   8 2.0 13.7   2.2 1503 0.00 0.03 0.165   0.010 522   12 100
Last Stop 8/21/26 85.9   3.5 1448 50.0   0.8 0053 54.2   0.2 74 95   0 38   9 1.7 11.2   0.3 1411 0.00 0.02 0.158   0.001 500   18 100
Green Valley Vineyard 8/21/26 81.9   3.5 1439 50.0   1.1 0059 53.2   0.5 75 98   0 35   11 1.9 13.8   2.6 1506 0.00 0.07 0.033   0.003 7   28 100
Park Royal 8/21/26 81.8   5.6 1553 54.0   0.5 0059 54.1   0.5 73 97   0 39   8 - - - 0.00 0.00 - - 100
Merino 8/21/26 84.3   5.8 1612 49.6   4.2 0059 56.1   0.5 78 99   0 42   9 2.3 11.8   0.0 1437 0.00 0.00 0.169   0.018 529   14 90
Green Valley (Sanchietti) 8/21/26 84.3   5.8 1700 48.4   2.3 0101 - - - - - - - - - - - 100
Keefer Ranch (Green Valley) 8/21/26 82.9   5.9 1444 48.6   1.5 0057 54.1   0.4 76 95   0 39   14 - - - 0.00 0.04 - - 100
Graton-West (Dutton Ranch) 8/21/26 84.0   5.9 1435 49.6   2.2 0039 56.6   1.5 82 100   0 37   18 1.7 11.6   0.5 1441 0.00 0.05 - - 100
Graton-South (Mill Station Rd) 8/21/26 79.4   7.6 1559 48.5   2.0 0059 54.2   0.2 79 98   1 42   17 0.9 8.2   0.6 1522 0.00 0.03 - - 20
Occidental (Horseshoe Bend) 8/21/26 77.4   5.5 1346 50.3   0.4 0139 53.3   0.2 - 100   0 46   10 - - - 0.00 0.08 - - 0
Sexton Valley (Jacqueline's Blk) 8/21/26 79.9   7.7 1519 48.5   3.2 0101 55.7   0.5 81 98   0 47   14 1.3 11.8   0.3 1526 0.00 0.09 - - 20
Sebastopol Hills (Burnside Rd) 8/21/26 74.5   5.7 1529 52.8   0.8 0101 55.6   0.8 86 100   0 57   11 2.7 13.6   1.6 1458 0.00 0.00 - - 0
Pleasant Hill 8/21/26 79.1   3.9 1540 49.1   1.1 0059 53.9   0.3 - 96   0 44   7 1.9 11.6   0.3 1734 0.00 0.05 - - 90
Seaview/Fort Ross (Hirsch) 8/21/26 70.7   0.4 1209 55.5   6.7 0059 52.5   0.0 70 86   11 51   1 2.4 10.8   1.0 1447 0.00 0.06 0.164   0.015 589   14 20
Max   88.5 - 56.7 - 59.3 90 100 57 4.0 17.2 - 0.00 0.11 0.175 589 -
Avg   - - - - 53.3 74 - - 2.1 - - - - - - -
Min   70.7 - 48.4 - 0.3 32 84 0 0.0 0.8 - 0.00 0.00 0.025 0 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 8/22/26 2:29 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 8/21/26 79.7   1.8 1349 51.0   0.5 0203 52.8   0.3 98   0 38   6 1.5   0.1 10.1   1.2 1341 SSW | 208 0.00 0.01 0.134   0.016 415   22 90   10
Lower Bennett Valley 8/21/26 81.1   2.4 1313 53.6   1.3 0132 54.6   0.2 100   0 39   6 4.4   0.3 15.6   0.1 1407 SSE | 168 0.00 0.00 0.178   0.025 550   32 90   20
Kenwood (Wildwood) 8/21/26 84.2   0.7 1347 54.2   2.0 0208 53.4   0.2 96   4 34   3 3.5   0.0 14.0   0.4 1421 N | 0 0.00 0.00 0.184   0.010 572   7 40   20
Sonoma Valley (Bedrock) 8/21/26 85.2   0.0 1511 51.0   1.8 0218 50.9   0.8 94   1 23   8 - - - - 0.00 0.00 - - 100   0
Sonoma-West (Arnold) 8/21/26 85.8   0.8 1315 50.2   1.9 0232 52.0   0.3 93   1 32   1 3.3   0.4 21.5   5.6 1535 W | 270 0.00 0.00 0.224   0.012 651   11 20   20
Sonoma Valley HS 8/21/26 82.6   0.9 1410 52.9   0.9 0301 55.8   0.5 99   1 43   0 2.5   0.3 10.0   3.4 1844 SSW | 196 0.00 0.00 0.182   0.006 572   11 100   0
Sonoma East (Bundschu01) 8/21/26 83.5   0.6 1336 52.3   0.5 0216 53.4   0.2 94   0 37   1 3.7   0.7 23.4   6.3 1515 WSW | 245 0.00 0.00 0.194   0.015 571   11 100   0
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) 8/21/26 84.2   0.1 1350 53.8   0.8 0304 53.5   0.3 93   1 35   0 3.9   0.4 20.5   5.7 1638 SSW | 213 0.00 0.00 - - 100   0
Ricci Vineyards (Carneros) 8/21/26 83.6   0.8 1350 55.9   2.3 0232 53.7   0.4 93   2 35   1 7.7   1.1 22.0   1.2 1805 W | 267 0.00 0.01 0.203   0.017 557   9 100   0
Carneros (Ranch 71) 8/21/26 81.3   0.4 1340 55.0   2.0 0231 53.6   0.4 96   0 38   0 8.1   1.0 28.2   6.8 1716 WSW | 256 0.00 0.00 0.196   0.015 551   20 100   0
Carneros Upper (Ranch 81) 8/21/26 82.5   0.1 1343 55.0   2.0 0228 32.7   1.2 - - 11.2   0.8 28.3   1.2 1617 WSW | 246 - - - - 100   0
Carneros Lower (Ranch 81) 8/21/26 89.4   0.3 1407 55.4   1.6 0210 54.5   0.2 93   0 31   1 0.8   0.1 12.2   1.6 1721 WNW | 295 0.00 0.00 0.045   0.116 113   413 80   10
Rohnert Park-West (Stony Point) 8/21/26 75.4   4.1 1230 50.1   3.2 0059 55.6   0.2 96   3 54   7 2.1   0.1 20.2   4.7 1554 WSW | 256 0.00 0.00 - - 20   20
Cartograph Wines Base 8/21/26 73.7   3.8 1439 53.7   0.9 0101 56.1   0.9 98   2 58   8 4.6   0.3 24.6   3.9 1514 SW | 225 0.00 0.08 0.153   0.030 539   47 0   0
Cartograph Wines Remote 8/21/26 74.8   5.2 1201 50.9   2.6 0059 - - - - - - - - - - - 20   20
Rice-Spivak Vineyard 8/21/26 75.3   2.7 1406 46.1   7.0 0059 - - - - - - - - - - - 0   0
Penngrove (Asellus) 8/21/26 77.2   2.5 1356 50.6   2.8 0059 53.8   0.0 94   3 45   4 2.8   0.0 13.8   0.7 1516 SSW | 199 0.00 0.00 - - 80   20
Petaluma (Ranch 10) 8/21/26 77.6   0.2 1320 52.3   2.2 0101 54.1   0.0 90   5 44   1 3.4   0.0 16.4   1.8 1706 WSW | 250 0.00 0.00 0.175   0.022 562   49 70   20
Max   89.4 - 55.9 - 56.1 100 58 11.2 28.3 - - 0.00 0.08 0.224 651 -
Avg   - - - - 52.5 - - 4.2 - - - - - - - -
Min   73.7 - 46.1 - 32.7 90 23 0.8 10.0 - - 0.00 0.00 0.045 113 -