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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 8/17/26 10:34 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) 8/16/26 89.6   8.5 1542 55.2   5.7 0606 49.6   3.2 51   24 85   15 17   22 5.3   0.8 18.4   2.2 1606 S | 175 0.00 0.05 0.248   0.065 646   60 20   10
Rockpile Lower (Cooley) 8/16/26 90.5   7.3 1623 51.6   2.0 0633 51.7   2.4 62   12 100   3 15   23 2.1   0.1 13.0   2.6 1318 ESE | 116 0.00 0.02 - - 10   10
Cloverdale-East (Ranch 83) 8/16/26 92.7   8.6 1636 51.3   2.3 0204 53.2   2.1 - - - 2.5   0.2 15.9   2.5 1654 ESE | 102 0.00 0.00 0.211   0.052 603   120 50   10
Cloverdale-SE (Ranch 38) 8/16/26 89.6   8.1 1543 52.7   1.5 0214 53.8   1.8 67   9 99   5 26   17 5.3   0.2 19.0   2.3 1521 SE | 125 0.00 0.01 0.214   0.065 551   118 30   10
Geyserville-North (Hoffman) 8/16/26 89.7   7.5 1543 54.9   0.0 0700 56.3   0.7 69   7 97   2 32   16 2.6   0.3 12.7   1.9 1508 SSE | 147 0.00 0.00 0.185   0.053 527   121 60   10
Geyserville (Ranch 3) 8/16/26 90.4   8.3 1616 54.4   0.6 0700 54.3   0.9 67   5 100   0 25   14 2.8   0.4 12.6   2.1 1559 E | 95 0.00 0.00 0.198   0.057 559   130 50   10
Geyserville-East (Ranch 40) 8/16/26 87.6   6.2 1521 51.9   1.6 0727 54.3   1.5 73   9 100   2 31   16 5.3   0.0 23.7   5.2 1601 SSW | 199 0.00 0.00 0.212   0.070 587   137 30   10
Geyserville-South (Nervo Station) 8/16/26 88.2   7.0 1548 54.0   0.5 0700 - - - - 2.8   0.3 13.1   1.7 1445 ESE | 122 0.00 0.00 - - 60   10
Peterson (Ranch 09) 8/16/26 88.2   7.9 1552 53.7   0.7 0800 52.8   1.5 67   6 96   2 26   16 3.0   0.6 12.5   1.3 1624 SSE | 155 0.00 0.00 0.180   0.050 528   110 30   10
Crazy Creek Ranch 8/16/26 89.5   7.8 1556 54.0   1.4 0637 55.4   1.0 70   7 96   3 31   17 2.1   0.1 11.8   1.8 1609 S | 173 0.00 0.00 0.188   0.051 584   139 60   10
Whitton Ranch (201e) 8/16/26 90.5   6.7 1627 54.5   0.0 0730 54.6   1.2 69   6 100   0 26   14 2.6   0.3 12.7   2.6 1521 E | 84 0.00 0.03 0.186   0.055 530   135 90   10
Lytton East (Shop Hill Bottom) 8/16/26 88.9   8.1 1522 54.5   1.0 0713 53.2   1.4 68   6 96   3 24   18 2.8   0.0 14.1   1.1 1623 SSE | 148 0.00 0.00 0.201   0.058 580   138 60   10
Lytton East (Hill 5) 8/16/26 88.2   7.7 1548 54.0   1.3 0715 53.4   1.4 69   7 98   3 26   17 3.9   0.2 16.6   1.0 1559 SSE | 150 0.00 0.00 0.195   0.062 519   120 30   10
Lytton West Lower (Lew 6) 8/16/26 89.2   8.3 1535 54.3   1.3 0727 53.7   1.3 69   6 100   6 25   19 2.9   0.2 13.9   0.0 1553 SSE | 166 0.00 0.01 0.190   0.048 543   94 60   10
Lytton West Hill (23PS) 8/16/26 88.9   8.5 1530 54.6   1.0 0746 54.3   1.2 71   5 100   2 26   19 3.3   0.3 13.8   0.7 1543 SE | 146 0.00 0.01 0.205   0.061 603   148 30   10
Big River 8/16/26 87.7   8.5 1529 54.4   1.3 0718 55.3   1.2 72   7 100   4 30   19 2.5   0.1 13.8   0.7 1541 SE | 128 0.00 0.00 0.195   0.055 591   135 30   10
Jimtown-North (Piccolo Ranch 15) 8/16/26 90.1   8.3 1654 54.1   0.2 0644 53.0   0.9 67   3 100   0 22   15 1.8   0.3 14.7   3.3 1552 S | 182 0.00 0.00 0.168   0.046 516   127 60   10
HWY 128/Chalk Hill Rd (Landslide) 8/16/26 89.5   8.1 1519 54.6   1.7 0705 54.2   1.4 67   7 95   2 28   16 2.3   0.1 12.3   0.4 1423 SSW | 208 0.00 0.00 0.169   0.045 486   110 60   10
N Chalk Hill Rd (Ranch 63) 8/16/26 87.3   7.1 1519 53.4   1.3 0651 53.1   1.5 67   8 96   4 27   17 2.2   0.2 13.9   1.3 1558 SSW | 205 0.00 0.00 0.178   0.047 515   110 60   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) 8/16/26 88.6   7.7 1533 48.6   0.3 0101 52.5   1.0 67   8 97   1 28   14 2.2   0.1 13.9   1.4 1609 WNW | 282 0.00 0.00 0.193   0.045 569   103 70   20
Red Tail 8/16/26 87.6   8.4 1514 53.6   2.6 0524 54.6   0.6 70   7 92   2 36   16 2.9   0.2 16.7   2.8 1549 SSW | 197 0.00 0.01 0.192   0.049 575   113 60   10
Franz Valley (Stornetta) 8/16/26 89.0   7.8 1523 47.8   1.7 0155 52.7   0.9 - 100   7 30   12 1.5   0.1 13.2   2.9 1536 SW | 216 0.00 0.00 - - 70   20
Upper Dry Creek Valley 8/16/26 92.2   7.7 1630 54.6   0.8 0640 54.1   1.2 66   6 96   3 24   16 3.0   0.1 17.1   3.9 1612 ESE | 120 0.00 0.00 0.209   0.056 592   129 40   20
Lower Dry Creek Valley 8/16/26 88.5   8.0 1520 54.9   0.8 0631 54.9   0.6 71   4 100   0 27   19 2.6   0.2 14.5   1.5 1623 N | 354 0.00 0.01 0.194   0.059 558   141 60   10
Max   92.7 - 55.2 - 56.9 73 100 46 5.3 23.7 - - 0.00 0.05 0.248 646 -
Avg   - - - - 53.8 68 - - 2.9 - - - - - - - -
Min   87.3 - 47.8 - 49.6 51 85 15 1.5 11.8 - - 0.00 0.00 0.168 486 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 8/17/26 10:34 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) 8/16/26 89.0   8.0 1706 55.3   0.7 0736 54.3   1.1 70 86   3 27   25 0.0 0.0   0.0 0101 0.00 0.02 0.164   0.039 555   121 60
Windsor-East (Ranch 16) 8/16/26 85.4   7.4 1516 53.6   2.3 0617 54.0   1.2 71 96   2 30   17 4.0 14.2   0.5 1429 0.00 0.00 0.197   0.049 577   118 80
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) 8/16/26 86.1   7.8 1644 55.4   1.1 2331 54.7   0.9 75 98   4 24   24 2.1 11.7   0.8 1552 0.00 0.02 0.176   0.040 550   101 50
Fulton-NW (Ranch 5) 8/16/26 84.7   8.3 1435 54.0   1.8 0643 52.3   3.4 73 100   5 3   49 3.7 12.0   2.4 1500 0.00 0.00 0.186   0.043 574   109 80
Bisordi (Fulton) 8/16/26 84.5   7.6 1432 54.2   2.2 0716 56.0   0.5 77 95   2 42   15 2.4 12.4   1.0 1609 0.00 0.00 0.183   0.042 596   116 80
Windsor-South (Laughlin Rd) 8/16/26 86.7   8.3 1620 54.9   1.1 2315 54.5   0.6 74 94   2 31   17 - - - 0.00 0.00 - - 50
Fulton-SE (Barnes Rd) 8/16/26 84.3   7.4 1434 55.1   1.8 0736 55.1   0.4 75 95   3 38   13 1.2 9.1   1.5 1940 0.00 0.00 - - 80
Fulton-SW (Ranch 21) 8/16/26 84.4   7.5 1429 54.4   1.4 0659 22.4   32.8 49 100   6 0   50 3.1 14.3   0.4 1535 0.00 0.00 0.191   0.042 591   97 70
NW Santa Rosa (Piner Road) 8/16/26 83.5   7.1 1418 54.9   1.1 0716 57.3   1.2 85 100   0 46   12 2.3 14.6   0.2 1521 0.00 0.00 - - 60
River Rd South (Denner Ranch) 8/16/26 83.8   7.6 1417 54.0   1.4 2307 -8.6   0.9 27 100   0 0   0 4.3 15.6   1.3 1458 - - - - 40
West Santa Rosa (LOV Vineyard) 8/16/26 84.2   7.4 1411 54.7   1.4 2303 54.9   0.5 77 96   2 40   10 2.1 14.2   0.1 1522 0.00 0.00 0.032   0.008 0   0 70
Guerneville Rd (Prokopakis) 8/16/26 87.6   6.1 1408 55.6   0.7 0602 55.9   0.2 76 98   3 37   7 - - - 0.00 0.02 - - 90
SunnyView Vineyard (SCWC) 8/16/26 83.2   6.6 1415 54.6   1.1 2339 54.3   0.4 77 96   3 39   10 2.1 12.4   0.1 1434 0.00 0.00 0.156   0.028 498   73 50
Guerneville Rd West (Balletto) 8/16/26 82.4   6.6 1410 55.0   1.6 2307 56.6   0.3 82 99   3 48   10 2.7 14.8   1.9 1531 0.00 0.11 - - 60
Sanchietti Ranch 8/16/26 84.2   6.8 1413 55.4   1.7 2350 57.2   0.4 - 96   2 47   12 2.9 14.8   1.0 1459 0.00 0.00 - - 80
Occidental Rd (Sebastopol) 8/16/26 83.4   6.6 1403 54.4   1.4 2234 59.7   0.8 91 100   0 59   11 2.2 16.7   2.2 1439 0.00 0.00 - - 60
Harper's Rest (Windsor-West) 8/16/26 90.0   9.9 1710 53.3   1.7 0630 53.2   1.4 - 96   3 20   25 1.7 9.5   0.5 1534 0.00 0.04 - - 70
Lower Westside Rd (Ranch 12) 8/16/26 87.8   8.4 1640 54.0   1.7 0703 54.0   1.4 73 100   6 22   25 2.2 11.6   0.5 1533 0.00 0.03 - - 60
Guerneville (Laughlin Rd) 8/16/26 85.7   9.8 1339 53.8   0.1 0046 54.3   0.6 74 96   4 37   15 2.2 14.0   0.5 1434 0.00 0.02 - - 80
Korbel (Winery) 8/16/26 85.8   10.8 1405 55.2   1.0 0711 54.6   1.1 72 95   3 33   22 0.4 8.3   3.1 1415 0.00 0.01 - - 70
Forestville (Shone Farms) 8/16/26 87.8   7.4 1635 53.4   1.6 0745 54.8   1.3 76 98   2 24   25 2.0 11.3   0.9 1510 0.00 0.04 0.168   0.037 523   92 60
Forestville-NE (Ranch 30) 8/16/26 86.6   6.2 1641 53.8   1.4 0635 55.5   1.2 77 99   3 29   22 2.8 13.2   0.4 1453 0.00 0.03 0.177   0.041 536   92 60
Foggy Bend (Ranch 41) 8/16/26 86.8   7.6 1625 55.0   0.8 2342 56.5   0.5 77 96   3 32   24 2.0 12.1   1.3 1528 0.00 0.03 0.176   0.039 553   96 60
Last Stop 8/16/26 87.9   7.1 1528 52.6   0.0 2328 55.4   0.5 75 96   2 27   21 1.9 11.3   0.3 1536 0.00 0.02 0.172   0.035 532   83 60
Green Valley Vineyard 8/16/26 84.0   6.5 1448 52.5   0.5 0008 54.6   0.9 77 98   1 29   20 1.7 11.4   0.9 1602 0.01 0.07 0.029   0.008 9   2 80
Park Royal 8/16/26 84.9   7.7 1424 54.9   0.9 2331 54.4   0.3 77 98   3 36   12 - - - 0.00 0.00 - - 70
Merino 8/16/26 86.3   5.6 1419 54.3   1.9 2332 56.6   0.4 81 100   3 40   10 2.1 12.6   0.2 1527 0.00 0.00 0.172   0.026 542   63 80
Green Valley (Sanchietti) 8/16/26 86.2   7.2 1349 54.7   2.5 2338 - - - - - - - - - - - 100
Keefer Ranch (Green Valley) 8/16/26 82.4   4.6 1645 52.7   2.1 2345 56.2   0.2 79 97   2 41   11 - - - 0.00 0.04 - - 80
Graton-West (Dutton Ranch) 8/16/26 82.9   6.0 1353 54.3   1.5 0057 58.4   1.4 85 100   0 43   16 2.2 10.5   0.3 1513 0.00 0.05 - - 100
Graton-South (Mill Station Rd) 8/16/26 80.3   7.4 1342 54.4   0.6 2301 55.6   0.8 83 98   2 46   47 1.1 9.7   0.7 1616 0.00 0.03 - - 20
Occidental (Horseshoe Bend) 8/16/26 77.0   5.5 1320 52.8   0.1 0632 55.1   0.3 - 100   0 51   8 - - - 0.00 0.08 - - 0
Sexton Valley (Jacqueline's Blk) 8/16/26 80.9   6.7 1338 55.2   0.4 2254 56.7   0.2 85 99   1 50   10 1.5 12.8   0.4 1357 0.01 0.09 - - 0
Sebastopol Hills (Burnside Rd) 8/16/26 77.9   6.9 1321 53.6   1.0 2242 56.1   0.2 90 100   0 55   10 2.8 13.8   0.3 1516 0.00 0.00 - - 0
Pleasant Hill 8/16/26 82.7   6.3 1333 52.8   0.6 2223 54.9   0.4 - 96   1 42   8 2.0 14.6   1.0 1512 0.01 0.05 - - 50
Seaview/Fort Ross (Hirsch) 8/16/26 73.7   6.5 1140 57.2   6.8 0410 53.9   0.4 67 89   8 40   25 2.3 10.9   0.7 1314 0.00 0.06 0.174   0.036 620   50 40
Max   90.0 - 57.2 - 59.7 91 100 59 4.3 16.7 - 0.01 0.11 0.197 620 -
Avg   - - - - 52.6 75 - - 2.2 - - - - - - -
Min   73.7 - 52.5 - -8.6 27 86 0 0.0 0.0 - 0.00 0.00 0.029 0 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 8/17/26 10:34 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 8/16/26 84.7   7.3 1504 47.4   3.0 0632 53.0   0.7 98   0 36   11 1.5   0.0 10.5   0.5 1515 S | 182 0.00 0.01 0.140   0.025 437   58 60   10
Lower Bennett Valley 8/16/26 85.4   6.8 1447 52.2   2.1 0702 55.0   0.6 100   0 35   13 3.1   0.6 11.8   2.5 1458 SW | 220 0.00 0.00 0.182   0.035 567   84 80   20
Kenwood (Wildwood) 8/16/26 89.3   7.4 1538 53.1   0.8 0548 54.3   0.5 100   4 31   11 2.6   0.1 10.5   5.6 1555 NNW | 336 0.00 0.00 0.183   0.017 560   20 30   10
Sonoma Valley (Bedrock) 8/16/26 85.1   3.0 1529 52.1   0.6 0630 52.9   0.6 96   2 34   5 - - - - 0.00 0.00 - - 90   20
Sonoma-West (Arnold) 8/16/26 87.5   4.3 1735 54.4   4.9 0635 54.2   0.1 95   1 32   7 2.6   0.4 11.4   4.2 1628 ESE | 106 0.00 0.00 0.203   0.017 618   48 30   10
Sonoma Valley HS 8/16/26 84.7   2.9 1751 53.9   1.2 0635 56.6   0.3 100   1 42   6 2.3   0.0 10.8   3.6 1559 SSE | 150 0.00 0.00 0.170   0.015 552   44 60   20
Sonoma East (Bundschu01) 8/16/26 82.2   1.8 1523 54.2   1.0 0551 54.2   0.5 94   1 41   2 3.2   0.1 14.2   1.8 1611 SE | 142 0.00 0.00 0.179   0.019 552   42 100   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) 8/16/26 83.0   1.4 1508 54.3   1.2 0633 54.2   0.6 93   2 38   3 2.5   0.6 10.5   4.7 1643 SE | 136 0.00 0.00 - - 100   0
Ricci Vineyards (Carneros) 8/16/26 81.0   2.4 1740 54.7   0.5 0711 54.8   0.0 95   0 42   4 3.6   1.2 13.3   4.0 1616 SSE | 155 0.00 0.01 0.170   0.006 525   25 100   10
Carneros (Ranch 71) 8/16/26 79.1   1.9 1754 53.2   1.8 0644 54.9   0.0 100   4 46   2 2.7   2.2 10.6   10.6 1614 S | 188 0.00 0.00 0.157   0.005 534   51 90   20
Carneros Upper (Ranch 81) 8/16/26 80.4   2.9 1751 53.4   1.4 0621 18.3   27.0 - - 4.3   3.3 17.0   6.4 2051 WSW | 250 - - - - 90   20
Carneros Lower (Ranch 81) 8/16/26 79.8   1.2 1520 54.4   1.4 0628 55.7   0.0 94   2 48   1 1.7   0.5 12.1   1.1 1550 S | 176 0.00 0.00 0.154   0.011 505   42 100   0
Rohnert Park-West (Stony Point) 8/16/26 83.6   8.3 1405 54.9   1.2 0644 56.2   0.3 98   1 41   16 2.0   0.2 18.4   1.2 1441 SW | 236 0.00 0.00 - - 0   0
Cartograph Wines Base 8/16/26 81.3   6.6 1352 54.1   0.9 2207 56.2   0.2 99   1 50   10 3.4   0.0 22.9   3.9 1525 SSW | 213 0.01 0.07 0.151   0.017 534   47 0   0
Cartograph Wines Remote 8/16/26 81.1   7.0 1351 55.1   0.9 2206 - - - - - - - - - - - 20   10
Rice-Spivak Vineyard 8/16/26 84.7   8.6 1351 54.6   0.9 2207 - - - - - - - - - - - 0   0
Penngrove (Asellus) 8/16/26 85.6   6.5 1405 54.5   0.9 0627 54.2   0.6 96   0 28   17 2.5   0.4 14.2   0.3 1446 W | 275 0.00 0.00 - - 70   20
Petaluma (Ranch 10) 8/16/26 88.6   8.4 1450 55.8   0.6 0651 54.6   0.4 92   1 29   14 2.3   0.4 12.3   0.3 1841 WNW | 300 0.00 0.00 0.168   0.019 529   44 90   10
Max   89.3 - 55.8 - 56.6 100 50 4.3 22.9 - - 0.01 0.07 0.203 618 -
Avg   - - - - 52.5 - - 2.7 - - - - - - - -
Min   79.1 - 47.4 - 18.3 92 28 1.5 10.5 - - 0.00 0.00 0.140 437 -