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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 5/28/26 11:47 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) 5/27/26 69.6   9.9 1559 42.3   0.4 0544 41.8   0.1 69   7 100   0 32   13 6.5   7.2 21.9   17.8 0600 NNW | 342 0.05 42.20 0.157   0.012 512   208 50   10
Rockpile Lower (Cooley) 5/27/26 72.4   9.2 1538 46.1   0.8 0532 42.7   0.3 63   6 94   4 29   12 3.4   6.8 14.2   15.3 1602 WNW | 283 0.03 41.53 - - 50   10
Cloverdale-East (Ranch 83) 5/27/26 74.5   4.9 1321 46.5   2.2 0556 45.2   1.9 - - - 3.2   1.9 16.8   5.3 1806 SE | 128 0.09 35.09 0.160   0.041 481   182 90   20
Cloverdale-SE (Ranch 38) 5/27/26 73.5   5.6 1643 48.5   0.7 0541 45.4   1.2 64   1 95   13 33   7 6.5   3.7 21.0   5.4 1753 NNW | 333 0.09 36.62 0.160   0.038 456   182 40   10
Geyserville-North (Hoffman) 5/27/26 77.4   6.2 1617 47.9   2.1 0629 46.2   1.8 60   2 92   13 34   4 3.9   1.6 14.2   6.6 1713 SE | 145 0.00 25.50 0.163   0.034 477   144 60   20
Geyserville (Ranch 3) 5/27/26 75.4   4.9 1616 48.9   2.9 0617 44.8   1.7 58   3 100   25 30   3 4.2   2.7 15.7   4.3 1755 S | 184 0.03 35.92 0.181   0.048 552   184 90   20
Geyserville-East (Ranch 40) 5/27/26 73.0   3.2 1320 46.7   2.4 0558 45.6   1.0 65   2 98   10 37   2 6.5   0.2 23.1   1.5 1658 S | 174 0.04 36.85 0.184   0.017 553   141 10   10
Geyserville-South (Nervo Station) 5/27/26 74.2   2.4 1355 47.5   4.0 0608 - - - - 4.4   2.6 17.2   7.0 0143 WNW | 294 0.00 27.02 - - 0   10
Peterson (Ranch 09) 5/27/26 73.8   2.3 1323 48.3   3.2 0619 43.7   1.9 58   5 93   18 30   0 4.8   3.7 15.1   7.5 1706 S | 184 0.03 33.65 0.184   0.049 561   127 20   20
Crazy Creek Ranch 5/27/26 75.3   4.9 1411 43.0   6.7 0537 46.5   1.0 66   6 96   14 36   4 2.7   3.5 16.3   7.8 1705 SE | 144 0.04 37.17 0.184   0.030 597   102 10   10
Whitton Ranch (201e) 5/27/26 75.4   3.5 1319 44.0   7.4 0609 45.4   1.5 60   3 96   16 31   3 3.7   2.4 14.6   4.8 1320 S | 180 0.04 38.03 0.175   0.032 532   121 60   20
Lytton East (Shop Hill Bottom) 5/27/26 75.2   5.0 1412 48.5   1.7 0613 44.7   1.5 60   3 94   5 30   5 4.3   2.0 17.0   5.3 1355 SSE | 158 0.04 38.82 0.188   0.030 589   128 10   10
Lytton East (Hill 5) 5/27/26 75.6   6.1 1410 48.7   2.5 0610 44.5   1.5 60   2 94   10 30   5 6.5   3.8 22.0   4.8 1657 S | 183 0.03 38.27 0.189   0.028 536   114 10   10
Lytton West Lower (Lew 6) 5/27/26 74.0   3.8 1413 48.5   1.7 0629 44.8   1.5 60   2 93   6 30   5 4.7   2.5 16.7   5.8 1506 SW | 214 0.04 38.70 0.173   0.033 493   133 0   10
Lytton West Hill (23PS) 5/27/26 74.3   3.8 1615 49.8   2.0 0617 45.0   1.5 60   3 95   11 29   5 5.0   2.5 14.5   6.9 1404 SW | 230 0.04 40.42 0.176   0.038 509   139 0   10
Big River 5/27/26 72.8   2.4 1422 47.3   4.2 0621 46.3   1.1 64   4 95   10 34   4 3.5   2.8 17.2   6.7 1639 SSE | 166 0.02 35.51 0.190   0.031 631   115 10   10
Jimtown-North (Piccolo Ranch 15) 5/27/26 73.7   2.8 1408 44.4   7.1 0622 43.5   1.0 58   4 87   10 28   2 2.3   2.4 16.5   7.9 1358 S | 179 0.04 34.92 0.161   0.030 507   89 10   10
HWY 128/Chalk Hill Rd (Landslide) 5/27/26 74.9   1.9 1358 43.7   4.0 0611 45.2   1.1 63   7 94   4 32   0 2.7   2.0 16.5   2.6 1636 S | 172 0.04 34.78 0.162   0.037 498   108 10   10
N Chalk Hill Rd (Ranch 63) 5/27/26 73.7   2.6 1422 41.1   8.0 0608 44.2   1.4 63   7 99   17 31   2 3.1   3.8 17.6   4.9 1427 S | 184 0.03 35.66 0.176   0.036 545   86 40   20
Newman Knights Valley 5/27/26 73.5   3.0 1355 40.3   4.3 0626 47.2   0.5 71   4 88   3 51   2 2.7   3.1 15.4   7.2 1403 SW | 222 0.04 35.10 - - 10   10
Knights Valley (Bavarian Lion) 5/27/26 74.0   3.9 1354 39.5   6.0 0551 43.7   1.0 66   7 97   7 28   3 2.6   3.8 14.2   6.4 1602 SW | 214 0.02 34.77 0.171   0.033 558   95 20   10
Red Tail 5/27/26 72.6   0.7 1424 44.2   2.4 0554 46.5   0.8 68   5 92   4 40   2 3.7   2.7 16.7   5.8 1723 S | 188 0.03 35.85 0.177   0.037 593   92 10   10
Franz Valley (Stornetta) 5/27/26 72.6   1.6 1332 40.9   6.0 0554 43.6   1.1 - 94   10 31   1 2.2   2.3 15.4   6.8 1636 SSE | 159 0.02 35.31 - - 50   10
Upper Dry Creek Valley 5/27/26 77.6   8.7 1642 50.4   2.0 0600 45.3   1.8 58   1 94   11 26   10 3.8   2.8 13.0   8.8 1539 S | 190 0.06 39.14 0.172   0.039 515   184 40   10
Lower Dry Creek Valley 5/27/26 74.0   1.4 1405 49.7   2.2 0606 44.8   1.4 58   3 100   20 29   3 5.4   4.7 16.9   7.0 1425 WSW | 238 0.03 38.19 0.182   0.049 527   115 10   10
Max   77.6 - 50.4 - 47.2 71 100 51 6.5 23.1 - - 0.09 42.20 0.190 631 -
Avg   - - - - 44.9 62 - - 4.1 - - - - - - - -
Min   69.6 - 39.5 - 41.8 58 87 26 2.2 13.0 - - 0.00 25.50 0.157 456 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 5/28/26 11:47 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) 5/27/26 73.2   1.2 1243 48.6   3.7 0626 47.9   1.6 66 84   1 38   1 0.0 0.5   0.4 1259 0.03 34.13 0.167   0.013 609   81 0
Windsor-East (Ranch 16) 5/27/26 72.2   0.8 1341 44.5   5.3 0257 45.6   1.8 64 94   4 33   2 4.2 16.4   2.9 1432 0.02 27.03 0.187   0.038 608   113 10
Mark West-North (Ranch 14) 5/27/26 72.3   0.8 1246 45.7   5.6 0608 45.6   2.8 65 93   8 34   4 2.6 12.4   2.1 1620 0.02 29.05 0.037   0.006 0   0 60
Windsor-SE (Silk Rd) 5/27/26 72.0   0.2 1359 42.1   8.8 0554 45.9   2.7 68 95   4 34   3 2.6 15.2   5.6 1424 0.02 26.50 0.177   0.038 597   100 10
Fulton-NW (Ranch 5) 5/27/26 71.7   0.6 1321 44.1   7.1 0554 46.3   2.8 68 94   5 37   5 4.1 15.0   5.6 1415 0.02 29.91 0.186   0.039 613   95 30
Bisordi (Fulton) 5/27/26 71.5   0.4 1328 44.0   6.9 0617 47.8   1.5 71 94   4 42   5 3.0 18.3   0.6 1359 0.02 24.37 0.190   0.029 672   90 30
Windsor-South (Laughlin Rd) 5/27/26 73.0   0.1 1203 45.6   6.6 0535 45.9   3.0 65 92   7 33   3 - - - 0.00 28.55 - - 0
Fulton-SE (Barnes Rd) 5/27/26 70.9   3.2 1355 44.9   4.5 0538 46.5   1.5 67 92   2 39   7 3.2 15.7   6.4 1439 0.01 28.58 - - 0
Fulton-SW (Ranch 21) 5/27/26 71.3   1.6 1322 43.8   5.6 0554 46.2   2.9 69 94   4 37   7 4.1 18.0   0.3 1356 0.01 29.18 0.192   0.032 654   64 40
NW Santa Rosa (Piner Road) 5/27/26 70.6   5.3 1337 42.4   5.9 0544 49.1   1.6 78 100   0 45   12 2.8 16.3   6.3 1414 0.00 23.80 - - 40
River Rd South (Denner Ranch) 5/27/26 70.6   3.1 1253 42.6   5.9 0546 4.8   31.9 38 100   0 0   0 5.5 20.4   1.5 1335 - - - - 50
West Santa Rosa (LOV Vineyard) 5/27/26 70.9   2.4 1316 43.3   5.4 0621 46.5   3.5 72 96   5 40   13 3.0 16.9   0.9 1401 0.00 23.02 0.040   0.029 1   0 40
Guerneville Rd (Prokopakis) 5/27/26 75.0   2.0 1207 43.9   4.8 0552 47.8   3.3 68 97   5 37   7 - - - 0.01 28.15 - - 40
SunnyView Vineyard (SCWC) 5/27/26 72.1   0.9 1204 41.7   4.6 0611 45.5   3.0 69 96   7 36   10 2.9 17.0   2.9 1439 0.02 30.71 0.173   0.036 587   41 50
Guerneville Rd West (Balletto) 5/27/26 70.0   3.1 1310 42.7   4.4 0618 48.0   2.1 75 97   5 47   14 3.5 17.0   7.6 1428 0.01 28.23 - - 40
Sanchietti Ranch 5/27/26 72.8   0.1 1312 41.7   4.4 0608 48.6   1.3 - 95   2 45   8 3.6 19.7   0.1 1354 0.01 28.90 - - 10
Occidental Rd (Sebastopol) 5/27/26 71.1   2.0 1225 41.9   3.9 0606 51.9   1.5 85 100   0 53   12 2.9 19.5   1.3 1341 0.01 11.50 - - 40
Harper's Rest (Windsor-West) 5/27/26 72.6   1.5 1410 42.9   6.4 0616 45.1   3.0 - 94   3 30   0 2.1 12.0   5.9 1405 0.02 34.68 - - 20
Lower Westside Rd (Ranch 12) 5/27/26 72.8   0.4 1441 43.6   5.8 0619 45.2   2.8 65 94   2 29   0 2.4 13.8   4.7 1316 0.02 33.37 - - 0
Guerneville (Laughlin Rd) 5/27/26 72.4   0.1 1157 41.5   3.9 0556 45.2   2.3 67 95   2 35   4 2.2 15.3   3.9 1316 0.07 44.41 - - 0
Korbel (Winery) 5/27/26 72.9   0.4 1321 44.2   3.4 0556 45.8   2.3 66 94   3 35   5 1.7 19.1   1.2 1334 0.08 41.59 - - 30
Forestville (Shone Farms) 5/27/26 73.2   1.2 1453 44.7   4.9 0554 45.9   2.4 65 94   5 33   4 2.6 16.3   4.5 1312 0.03 35.59 0.182   0.034 609   77 10
Forestville-NE (Ranch 30) 5/27/26 71.5   0.1 1421 43.1   3.9 0534 46.9   1.7 70 97   2 38   1 3.6 16.6   6.5 1405 0.03 33.49 0.187   0.027 628   81 30
Foggy Bend (Ranch 41) 5/27/26 71.8   0.7 1456 43.6   4.0 0622 47.9   1.2 70 95   2 41   1 3.1 16.3   7.0 1305 0.04 34.80 0.190   0.020 647   64 10
Last Stop 5/27/26 71.8   0.2 1221 41.1   3.9 0601 46.8   2.1 71 98   2 39   3 2.5 15.3   3.6 1347 0.03 33.79 0.180   0.026 633   80 10
Green Valley Vineyard 5/27/26 69.9   1.2 1210 43.1   4.2 0548 46.1   1.7 70 96   2 37   6 2.7 18.2   3.3 1404 0.05 41.31 0.035   0.030 1   75 30
Park Royal 5/27/26 71.6   1.7 1250 42.1   3.4 0608 45.2   2.9 67 92   2 36   10 - - - 0.01 16.68 - - 40
Merino 5/27/26 72.4   0.9 1311 39.3   4.4 0546 47.9   2.2 75 100   0 43   10 2.7 13.4   5.0 1438 0.01 29.68 0.192   0.011 684   7 40
Green Valley (Sanchietti) 5/27/26 73.4   1.5 1512 40.6   4.6 0545 - - - - - - - - - - - 0
Keefer Ranch (Green Valley) 5/27/26 70.1   2.2 1626 41.4   3.9 0600 47.1   0.8 73 98   3 43   6 - - - 0.03 36.79 - - 40
Graton-West (Dutton Ranch) 5/27/26 70.8   3.4 1201 41.4   4.5 0538 48.8   0.9 77 100   0 38   7 2.6 15.5   2.7 1453 0.04 44.90 - - 40
Graton-South (Mill Station Rd) 5/27/26 67.1   2.3 1158 40.8   4.8 0614 47.0   1.8 76 99   7 46   17 1.6 11.8   0.4 1321 0.01 34.08 - - 40
Occidental (Horseshoe Bend) 5/27/26 66.0   0.4 1522 45.0   0.1 0228 46.7   0.7 - 100   0 43   3 - - - 0.04 37.13 - - 40
Sexton Valley (Jacqueline's Blk) 5/27/26 67.6   1.1 1152 41.5   4.1 0604 48.8   0.9 80 99   2 54   11 1.8 19.7   0.7 1339 0.02 22.53 - - 40
Sebastopol Hills (Burnside Rd) 5/27/26 64.7   3.0 1145 47.6   0.5 0541 48.8   1.6 81 99   3 57   14 3.7 17.8   2.7 1424 0.01 33.48 - - 0
Pleasant Hill 5/27/26 71.7   0.7 1134 42.2   3.4 0612 47.0   1.7 - 98   3 44   12 3.0 16.4   2.3 1417 0.01 31.58 - - 50
Seaview/Fort Ross (Hirsch) 5/27/26 64.0   4.2 1450 44.8   1.6 0330 45.1   0.4 76 97   0 49   13 3.3 13.7   14.0 2325 0.03 53.69 0.166   0.012 672   18 20
Max   75.0 - 48.6 - 51.9 85 100 57 5.5 20.4 - 0.08 53.69 0.192 684 -
Avg   - - - - 45.8 70 - - 2.9 - - - - - - -
Min   64.0 - 39.3 - 4.8 38 84 0 0.0 0.5 - 0.00 11.50 0.035 0 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 5/28/26 11:47 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 5/27/26 70.1   1.0 1353 43.4   1.0 0617 44.3   1.6 95   1 36   3 2.2   0.1 11.2   2.8 1406 SSE | 164 0.01 5.90 0.143   0.010 482   38 50   10
Lower Bennett Valley 5/27/26 71.1   0.2 1327 39.1   8.7 0610 46.2   1.4 100   5 39   5 3.2   1.7 17.4   0.9 1441 WSW | 243 0.01 27.62 0.188   0.005 665   70 30   10
Kenwood (Wildwood) 5/27/26 71.2   0.6 1255 42.4   2.0 0551 46.5   1.8 97   4 38   6 2.2   1.8 13.3   6.3 1811 N | 351 0.56 32.51 0.129   0.051 449   154 10   10
Sonoma Valley (Bedrock) 5/27/26 72.2   1.1 1342 42.6   8.1 0624 45.9   2.3 93   8 36   7 - - - - 0.66 28.64 - - 10   10
Sonoma-West (Arnold) 5/27/26 74.6   3.6 1354 40.9   6.9 0554 46.6   0.7 96   8 34   1 2.7   2.4 14.0   8.8 1401 SE | 132 0.05 17.93 0.163   0.058 565   190 40   10
Sonoma Valley HS 5/27/26 72.9   2.7 1348 44.1   6.2 0603 49.4   0.6 100   5 43   3 2.2   1.3 11.3   0.1 1500 SSW | 194 0.03 6.65 0.155   0.037 554   139 10   10
Sonoma East (Bundschu01) 5/27/26 73.7   2.9 1411 42.6   3.7 0552 45.9   0.0 95   4 36   3 3.2   2.0 15.1   8.6 1318 SE | 132 0.00 21.64 0.169   0.030 560   106 40   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) 5/27/26 74.4   3.2 1355 42.5   3.6 0604 46.4   0.2 95   5 35   0 2.3   2.2 12.1   8.0 1303 SSW | 200 0.00 18.49 - - 10   10
Ricci Vineyards (Carneros) 5/27/26 73.8   2.9 1344 43.2   6.6 0619 46.7   0.2 94   6 35   2 4.0   3.6 15.6   8.7 1355 S | 191 0.00 22.95 0.186   0.027 618   100 50   10
Carneros (Ranch 71) 5/27/26 71.2   2.3 1403 46.9   2.5 0535 47.1   0.6 94   2 39   3 3.2   5.0 16.0   12.4 1804 W | 260 0.00 19.86 0.177   0.028 601   112 40   10
Carneros Upper (Ranch 81) 5/27/26 73.5   4.0 1424 47.8   1.7 0538 46.9   0.9 - - 5.3   4.9 25.1   7.3 1530 W | 263 - - - - 40   10
Carneros Lower (Ranch 81) 5/27/26 74.0   1.1 1400 43.8   5.0 0614 47.7   0.1 100   7 0   36 1.8   0.1 12.6   1.7 1419 S | 169 0.00 19.42 0.151   0.013 518   50 40   10
Rohnert Park-West (Stony Point) 5/27/26 70.1   1.2 1222 40.1   4.1 0611 48.3   0.2 98   5 51   8 3.3   1.9 21.7   0.2 1416 W | 272 0.01 11.84 - - 30   10
Cartograph Wines Base 5/27/26 68.2   1.7 1223 46.9   1.5 0318 49.5   0.7 95   1 57   10 4.7   2.1 22.4   2.4 1429 SW | 226 0.00 28.36 0.170   0.003 678   31 0   0
Cartograph Wines Remote 5/27/26 71.3   1.6 1143 43.3   2.5 0611 - - - - - - - - - - - 10   10
Rice-Spivak Vineyard 5/27/26 71.8   0.6 1202 34.4   2.2 0558 - - - - - - - - - - - 30   10
Penngrove (Asellus) 5/27/26 75.5   4.9 1241 41.7   1.0 0314 46.3   0.6 97   1 34   2 2.9   1.7 17.4   2.3 1406 WNW | 286 0.00 67.81 - - 40   10
Petaluma (Ranch 10) 5/27/26 73.9   4.8 1337 42.4   5.0 0614 46.4   0.4 100   10 36   1 1.9   3.9 13.4   10.8 1756 W | 271 0.00 19.63 0.161   0.035 545   127 0   10
Max   75.5 - 47.8 - 49.5 100 57 5.3 25.1 - - 0.66 67.81 0.188 678 -
Avg   - - - - 46.9 - - 3.0 - - - - - - - -
Min   68.2 - 34.4 - 44.3 93 0 1.8 11.2 - - 0.00 5.90 0.129 449 -