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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 9/19/26 5:17 PM PDT
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) 9/18/26 82.0   6.7 1432 51.1   3.5 0611 47.7   1.1 60   15 97   3 25   11 7.9   1.9 29.8   4.8 1807 NW | 310 0.00 0.33 0.198   0.044 534   25 100   0
Rockpile Lower (Cooley) 9/18/26 86.0   8.5 1509 53.5   2.1 0632 48.4   1.3 57   12 90   1 23   13 3.7   1.1 22.1   4.4 1830 WSW | 255 0.00 0.33 - - 60   20
Cloverdale-East (Ranch 83) 9/18/26 90.8   10.0 1529 49.2   2.7 0246 49.6   1.8 - - - 2.3   0.1 15.2   2.1 1721 WNW | 302 0.00 0.12 0.160   0.009 471   9 90   10
Cloverdale-SE (Ranch 38) 9/18/26 90.2   12.4 1541 54.0   0.8 0321 51.0   1.4 58   12 91   0 25   16 4.6   0.5 19.0   1.4 1542 SSE | 151 0.00 0.11 0.168   0.025 439   1 50   10
Geyserville-North (Hoffman) 9/18/26 88.7   9.7 1604 47.0   5.0 0628 53.4   0.0 69   0 95   4 34   10 1.9   0.1 12.0   0.3 1711 ESE | 113 0.00 0.00 0.157   0.014 474   8 30   10
Geyserville (Ranch 3) 9/18/26 88.2   10.1 1551 47.5   4.9 0700 51.1   0.0 65   1 100   13 28   11 1.9   0.1 11.1   1.1 1409 SE | 136 0.00 0.13 0.149   0.014 432   2 60   10
Geyserville-East (Ranch 40) 9/18/26 86.3   10.3 1526 52.3   0.5 0645 53.4   0.9 67   5 95   2 34   11 4.3   0.4 18.1   5.1 1646 SSW | 196 0.00 0.12 0.173   0.023 484   9 20   10
Geyserville-South (Nervo Station) 9/18/26 86.1   9.4 1613 50.1   3.4 0704 - - - - 2.1   0.0 11.8   1.3 1616 SE | 124 0.00 0.21 - - 30   10
Peterson (Ranch 09) 9/18/26 85.5   9.0 1552 45.9   4.9 0636 49.9   0.2 66   1 92   2 30   9 2.2   0.0 12.7   1.1 1619 SE | 134 0.00 0.20 0.156   0.012 485   9 30   10
Crazy Creek Ranch 9/18/26 87.3   9.5 1617 46.8   4.4 0646 52.1   0.7 70   1 97   7 33   12 1.7   0.3 11.4   3.0 1526 SE | 141 0.00 0.23 0.159   0.010 504   5 10   10
Whitton Ranch (201e) 9/18/26 88.0   9.0 1551 42.9   4.3 0659 50.3   0.7 69   1 100   0 31   8 1.9   0.0 10.6   0.9 1643 SSE | 149 0.00 0.29 0.140   0.008 403   5 20   10
Lytton East (Shop Hill Bottom) 9/18/26 86.7   8.5 1540 46.1   1.8 0702 50.7   0.6 68   1 95   0 31   7 2.4   0.2 14.9   0.1 1624 SE | 139 0.00 0.27 0.165   0.012 496   5 40   10
Lytton East (Hill 5) 9/18/26 86.2   9.6 1541 48.5   2.6 0656 51.6   0.7 68   0 95   1 32   8 3.5   0.3 16.8   1.5 1649 SE | 137 0.00 0.25 0.161   0.016 449   4 60   20
Lytton West Lower (Lew 6) 9/18/26 86.7   9.1 1601 45.7   1.8 0654 50.6   0.6 68   1 97   2 32   7 2.1   0.3 11.5   2.9 1513 SSW | 200 0.00 0.28 0.167   0.014 511   12 40   10
Lytton West Hill (23PS) 9/18/26 85.8   9.2 1641 49.8   1.4 0629 52.2   1.1 68   0 94   0 33   8 2.8   0.4 14.2   0.2 1519 SSE | 153 0.00 0.26 0.172   0.014 523   0 100   10
Big River 9/18/26 84.6   8.6 1543 49.1   2.2 0647 53.0   0.4 71   3 97   1 36   11 2.0   0.1 12.1   3.3 1553 SW | 220 0.00 0.28 0.163   0.018 521   22 90   20
Jimtown-North (Piccolo Ranch 15) 9/18/26 87.5   9.9 1543 45.3   4.9 0617 48.7   0.9 65   0 100   9 26   11 1.1   0.6 12.9   2.9 1626 S | 185 0.00 0.20 0.135   0.004 433   10 10   10
HWY 128/Chalk Hill Rd (Landslide) 9/18/26 87.2   8.3 1528 46.0   4.2 0649 50.6   0.8 68   1 95   3 29   10 1.8   0.2 14.1   1.6 1624 SSW | 197 0.00 0.31 0.144   0.009 429   6 40   10
N Chalk Hill Rd (Ranch 63) 9/18/26 85.2   9.0 1525 43.2   6.2 0641 49.4   0.9 67   2 99   7 30   11 1.7   0.3 13.6   0.4 1633 WSW | 251 0.00 0.29 0.146   0.011 442   11 20   10
Newman Knights Valley 9/18/26 85.8   8.7 1557 45.7   4.7 0724 52.9   0.0 71   0 89   4 48   7 2.5   0.3 14.2   1.2 1634 SSW | 205 0.00 0.40 - - 30   20
Knights Valley (Bavarian Lion) 9/18/26 86.0   8.2 1557 43.1   4.2 0639 48.4   1.7 67   2 97   4 27   11 2.1   0.2 14.2   0.8 1303 NW | 304 0.00 0.26 0.158   0.017 488   26 20   20
Red Tail 9/18/26 85.5   8.5 1501 45.6   2.3 0653 51.2   0.5 71   3 94   2 35   12 2.2   0.3 14.2   4.2 1644 SE | 144 0.00 0.29 0.157   0.012 496   6 100   0
Franz Valley (Stornetta) 9/18/26 84.6   7.7 1533 43.4   5.3 0711 48.6   1.9 - 94   0 29   11 1.5   0.1 12.2   0.2 1421 SSE | 149 0.00 0.43 - - 70   20
Upper Dry Creek Valley 9/18/26 89.8   9.7 1641 47.5   4.3 0623 51.6   0.6 66   0 95   4 28   8 1.9   0.1 12.2   0.6 1748 W | 274 0.00 0.14 0.170   0.017 513   19 80   20
Lower Dry Creek Valley 9/18/26 86.5   8.4 1641 46.6   1.5 0718 51.5   1.2 69   1 100   0 32   7 1.6   0.4 13.8   0.9 1821 SE | 130 0.00 0.26 0.156   0.016 479   7 60   10
Max   90.8 - 54.0 - 53.4 71 100 48 7.9 29.8 - - 0.00 0.43 0.198 534 -
Avg   - - - - 50.7 67 - - 2.5 - - - - - - - -
Min   82.0 - 42.9 - 47.7 57 89 23 1.1 10.6 - - 0.00 0.00 0.135 403 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 9/19/26 5:17 PM PDT
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) 9/18/26 87.7   10.3 1524 49.9   1.2 0655 52.9   0.5 70 86   0 36   12 0.1 10.2   3.7 1815 0.00 0.50 0.139   0.021 496   51 10
Windsor-East (Ranch 16) 9/18/26 85.7   8.8 1515 46.6   0.6 0712 50.7   0.1 71 95   0 29   12 2.7 14.5   0.1 1555 0.00 0.23 0.161   0.018 486   30 100
Mark West-North (Ranch 14) 9/18/26 85.3   8.1 1444 49.0   0.4 0459 51.4   0.5 71 96   1 27   13 1.5 12.6   1.6 1729 0.00 0.24 - - 90
Windsor-SE (Silk Rd) 9/18/26 84.5   8.6 1545 45.4   0.4 0627 50.9   0.2 73 98   2 34   10 1.7 11.5   0.1 1828 0.00 0.32 0.152   0.023 487   58 100
Fulton-NW (Ranch 5) 9/18/26 82.3   6.9 1436 47.6   0.1 0536 46.8   4.2 68 100   5 3   42 2.8 16.1   1.2 1725 0.00 0.23 0.164   0.026 508   47 100
Bisordi (Fulton) 9/18/26 83.7   7.7 1516 46.1   0.7 0521 52.8   0.7 76 96   1 39   11 1.9 12.7   0.7 1536 0.00 0.22 0.159   0.019 532   54 100
Windsor-South (Laughlin Rd) 9/18/26 85.4   8.2 1445 48.8   0.9 0702 51.8   0.4 72 95   1 30   11 - - - 0.00 0.17 - - 100
Fulton-SE (Barnes Rd) 9/18/26 82.5   6.5 1503 49.4   0.2 0551 52.7   0.6 74 95   2 37   9 2.3 15.0   0.7 1755 0.00 0.29 - - 100
Fulton-SW (Ranch 21) 9/18/26 82.6   6.7 1511 48.9   1.3 0457 31.7   19.6 58 100   5 0   44 2.5 14.8   1.2 1559 0.00 0.20 0.165   0.014 519   17 100
NW Santa Rosa (Piner Road) 9/18/26 82.6   7.3 1522 47.5   1.8 0356 54.8   0.8 83 100   0 41   11 1.7 12.8   0.3 1754 0.00 0.00 - - 100
River Rd South (Denner Ranch) 9/18/26 83.0   7.3 1603 46.2   0.4 0503 -8.3   12.8 27 100   0 0   0 3.5 16.0   0.7 1515 - - - - 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) 9/18/26 88.0   8.2 1506 47.4   1.3 0415 52.0   1.1 74 100   3 31   9 - - - 0.00 0.24 - - 20
SunnyView Vineyard (SCWC) 9/18/26 82.9   6.7 1411 46.8   2.0 0250 51.4   1.6 75 100   4 33   8 1.5 10.8   2.6 1710 0.00 0.27 0.134   0.015 434   50 70
Guerneville Rd West (Balletto) 9/18/26 82.0   6.6 1456 47.8   0.0 0421 53.2   0.9 77 98   3 41   8 2.1 13.2   0.4 1606 0.00 0.43 - - 100
Sanchietti Ranch 9/18/26 82.8   7.3 1445 47.7   0.2 0422 54.1   0.4 - 97   2 43   11 2.8 14.1   1.9 1610 0.00 0.28 - - 100
Occidental Rd (Sebastopol) 9/18/26 82.3   5.3 1352 46.7   0.6 0352 55.4   0.1 86 100   0 45   8 2.0 15.6   0.0 1523 0.00 0.20 - - 100
Harper's Rest (Windsor-West) 9/18/26 86.8   9.5 1517 46.6   1.3 0708 50.7   0.7 - 97   1 30   9 1.8 10.9   1.8 1603 0.00 0.45 - - 80
Lower Westside Rd (Ranch 12) 9/18/26 85.3   8.6 1504 46.2   1.4 0716 51.0   0.6 72 100   5 32   9 1.6 12.9   3.0 1528 0.00 0.45 - - 100
Guerneville (Laughlin Rd) 9/18/26 81.5   4.5 1315 46.6   1.5 0546 50.6   1.2 74 96   1 38   2 1.9 15.3   1.2 1450 0.00 0.81 - - 100
Korbel (Winery) 9/18/26 82.3   6.3 1321 48.4   0.6 0454 51.9   0.8 74 97   1 36   8 0.8 15.6   2.7 1449 0.00 0.52 - - 100
Forestville (Shone Farms) 9/18/26 85.6   8.2 1515 48.6   0.8 0657 52.8   1.0 73 96   0 34   11 1.5 12.0   0.1 1410 0.00 0.43 0.152   0.029 489   88 100
Forestville-NE (Ranch 30) 9/18/26 84.7   8.7 1522 45.9   1.4 0545 52.9   0.7 76 98   0 38   10 1.8 13.0   1.4 1538 0.00 0.40 0.158   0.029 507   79 10
Foggy Bend (Ranch 41) 9/18/26 84.6   8.4 1452 47.4   0.2 0704 53.7   1.0 76 97   1 43   8 1.8 13.2   1.8 1600 0.00 0.42 0.153   0.026 498   66 100
Last Stop 9/18/26 86.7   9.7 1434 46.2   0.3 0541 51.6   0.5 74 97   0 35   10 1.8 12.1   1.3 1632 0.00 0.39 0.155   0.030 501   78 40
Green Valley Vineyard 9/18/26 83.8   9.5 1407 48.1   0.5 0558 51.8   0.3 74 98   1 33   12 1.9 15.1   1.8 1544 0.00 0.57 0.032   0.009 1   0 100
Park Royal 9/18/26 82.5   7.2 1456 50.0   2.1 0236 52.3   1.3 75 98   5 35   9 - - - 0.00 0.21 - - 100
Merino 9/18/26 84.8   6.2 1505 46.8   1.0 0244 53.4   0.9 79 100   0 38   8 1.9 12.0   0.2 1603 0.00 0.33 0.159   0.031 510   81 100
Green Valley (Sanchietti) 9/18/26 87.9   10.5 1454 42.9   1.0 0534 - - - - - - - - - - - 90
Keefer Ranch (Green Valley) 9/18/26 83.4   8.3 1505 46.0   0.7 0551 51.8   0.5 76 97   1 36   13 - - - 0.00 0.48 - - 100
Graton-West (Dutton Ranch) 9/18/26 85.1   8.2 1420 46.9   1.2 0510 53.8   0.6 80 100   0 34   12 1.4 9.9   0.6 1605 0.00 0.61 - - 100
Graton-South (Mill Station Rd) 9/18/26 80.4   6.9 1442 44.3   3.7 0548 51.3   0.2 77 98   2 40   10 0.7 7.8   0.3 1600 0.00 0.41 - - 70
Occidental (Horseshoe Bend) 9/18/26 79.5   8.9 1505 50.9   0.4 0642 53.0   0.7 - 97   0 42   11 - - - 0.00 0.75 - - 60
Sexton Valley (Jacqueline's Blk) 9/18/26 80.2   4.9 1436 45.1   3.8 0654 53.1   0.1 81 100   2 47   4 1.0 8.5   6.3 1334 0.00 0.27 - - 90
Sebastopol Hills (Burnside Rd) 9/18/26 76.4   5.2 1447 50.3   2.2 0726 54.6   0.7 84 100   1 50   7 2.4 13.1   1.3 1553 0.00 0.00 - - 60
Pleasant Hill 9/18/26 81.0   5.5 1427 47.4   3.2 0624 51.9   0.4 - 98   1 38   7 1.8 13.2   0.2 1437 0.00 0.49 - - 80
Seaview/Fort Ross (Hirsch) 9/18/26 73.2   7.5 1726 53.1   2.6 0516 50.7   0.1 66 93   1 32   25 3.3 13.3   0.7 2011 0.00 0.07 0.155   0.028 518   16 30
Max   88.0 - 53.1 - 55.4 86 100 50 3.5 16.1 - 0.00 0.81 0.165 532 -
Avg   - - - - 49.9 73 - - 1.9 - - - - - - -
Min   73.2 - 42.9 - -8.3 27 86 0 0.1 7.8 - 0.00 0.00 0.032 1 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 9/19/26 5:17 PM PDT
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 9/18/26 81.0   6.4 1537 51.3   2.2 0517 51.4   0.5 95   1 34   10 1.8   0.0 9.2   2.3 1323 SE | 145 0.00 0.02 0.118   0.023 368   62 80   10
Lower Bennett Valley 9/18/26 81.3   6.1 1356 42.3   5.2 0648 51.0   0.9 100   0 36   8 3.3   1.3 14.0   0.4 1422 SW | 215 0.00 0.39 0.151   0.051 482   165 100   20
Kenwood (Wildwood) 9/18/26 83.2   6.7 1403 48.4   2.5 0711 51.2   0.2 100   5 33   9 3.1   1.0 14.2   0.5 1701 N | 350 0.00 0.21 0.152   0.050 466   136 70   20
Sonoma Valley (Bedrock) 9/18/26 83.8   8.5 1439 45.0   3.7 0636 49.4   0.9 96   2 27   15 - - - - 0.00 0.29 - - 100   20
Sonoma-West (Arnold) 9/18/26 83.6   6.5 1345 45.8   4.4 0602 49.8   1.8 95   6 29   13 3.0   0.4 18.2   1.5 1654 WSW | 252 0.00 0.35 0.188   0.073 561   212 90   20
Sonoma Valley HS 9/18/26 82.7   6.9 1437 48.6   4.8 0659 53.7   0.8 100   6 37   13 2.1   0.4 11.7   2.1 1728 SW | 236 0.00 0.01 0.156   0.047 507   145 100   20
Sonoma East (Bundschu01) 9/18/26 84.2   9.8 1443 46.2   3.9 0709 50.7   1.2 96   6 30   18 3.1   0.5 18.8   3.3 1734 SW | 236 0.00 0.23 0.169   0.069 513   218 100   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) 9/18/26 84.6   8.6 1508 49.0   1.8 0500 51.5   0.5 94   7 29   15 2.8   0.5 16.5   3.7 1617 WSW | 243 0.00 0.18 - - 100   0
Ricci Vineyards (Carneros) 9/18/26 83.8   8.8 1433 51.4   4.7 0058 52.8   0.2 96   8 31   14 4.4   0.3 20.8   3.7 1909 WNW | 296 0.00 0.12 0.177   0.069 525   207 80   10
Carneros (Ranch 71) 9/18/26 81.7   8.3 1433 52.4   3.2 0708 52.9   0.3 100   12 33   16 4.9   1.2 27.8   8.5 1647 WSW | 254 0.00 0.07 0.176   0.076 518   213 90   20
Carneros Upper (Ranch 81) 9/18/26 83.1   9.1 1454 52.0   4.2 0639 27.4   24.9 - - 7.1   1.3 28.5   3.3 1750 W | 275 - - - - 90   20
Carneros Lower (Ranch 81) 9/18/26 88.6   12.2 1541 50.1   6.0 0733 50.7   2.7 100   11 0   45 1.3   0.2 14.0   2.4 1414 S | 175 0.00 0.01 0.022   0.002 15   11 60   10
Rohnert Park-West (Stony Point) 9/18/26 77.6   2.9 1426 47.4   1.4 0142 54.0   0.6 98   2 47   4 2.0   0.3 18.8   1.9 1703 SW | 234 0.00 0.20 - - 60   10
Cartograph Wines Base 9/18/26 74.7   0.6 1422 52.3   1.8 0059 55.3   0.1 98   2 52   3 4.0   0.8 21.5   3.2 1510 SSW | 197 0.00 0.30 0.136   0.026 496   124 20   10
Cartograph Wines Remote 9/18/26 75.3   1.9 1256 49.8   2.6 0059 - - - - - - - - - - - 60   10
Rice-Spivak Vineyard 9/18/26 77.3   2.1 1309 45.4   2.0 0101 - - - - - - - - - - - 60   10
Penngrove (Asellus) 9/18/26 78.4   0.4 1328 49.3   0.4 0059 53.4   1.5 98   3 40   2 2.2   0.1 14.1   3.2 1712 WNW | 295 0.00 0.57 - - 30   10
Petaluma (Ranch 10) 9/18/26 81.6   3.8 1357 49.9   0.7 0058 53.9   0.8 95   0 36   4 2.7   1.2 11.4   0.3 1219 NNW | 334 0.00 0.09 0.142   0.032 452   98 100   0
Max   88.6 - 52.4 - 55.3 100 52 7.1 28.5 - - 0.00 0.57 0.188 561 -
Avg   - - - - 50.6 - - 3.2 - - - - - - - -
Min   74.7 - 42.3 - 27.4 94 0 1.3 9.2 - - 0.00 0.01 0.022 15 -