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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 9/2/26 10:12 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) 9/1/26 69.8   7.3 1401 50.9   2.3 0008 49.3   0.7 79   10 100   2 42   3 4.7   2.5 22.6   5.3 0239 NW | 316 0.00 0.05 0.107   0.080 355   254 40   10
Rockpile Lower (Cooley) 9/1/26 71.9   8.2 1348 54.6   5.5 2359 50.3   0.0 72   3 92   8 40   3 4.4   1.1 19.6   1.8 1750 W | 276 0.00 0.02 - - 40   10
Cloverdale-East (Ranch 83) 9/1/26 74.0   7.1 1720 51.4   3.3 0008 51.4   0.1 - - - 1.9   0.8 14.1   0.7 1754 WSW | 237 0.00 0.00 0.106   0.061 318   214 40   20
Cloverdale-SE (Ranch 38) 9/1/26 73.9   4.3 1335 55.6   4.6 0437 52.1   0.4 71   4 89   8 44   1 3.3   2.2 17.8   2.9 1816 N | 351 0.00 0.01 0.095   0.059 259   227 0   0
Geyserville-North (Hoffman) 9/1/26 77.1   1.9 1338 52.1   2.6 0101 52.9   0.0 71   4 92   1 43   2 2.4   0.2 14.0   1.5 1742 W | 273 0.00 0.00 0.108   0.032 308   148 10   10
Geyserville (Ranch 3) 9/1/26 75.3   3.1 1338 52.8   2.2 0101 51.4   0.4 67   5 100   0 37   3 2.5   0.3 13.6   0.3 1808 W | 262 0.00 0.00 0.115   0.027 323   124 50   20
Geyserville-East (Ranch 40) 9/1/26 76.4   0.8 1416 52.6   1.4 0201 52.6   0.4 75   6 96   2 42   3 4.4   1.4 21.0   1.2 1429 SSW | 199 0.00 0.00 0.108   0.028 304   134 0   0
Geyserville-South (Nervo Station) 9/1/26 73.9   3.3 1415 54.1   2.5 0244 - - - - 2.3   0.4 15.2   1.7 1737 SW | 230 0.00 0.00 - - 0   0
Peterson (Ranch 09) 9/1/26 74.5   2.6 1423 49.9   0.3 0101 50.5   0.3 68   5 91   4 39   1 2.4   0.1 13.6   1.5 1801 SW | 225 0.00 0.00 0.116   0.020 348   108 40   20
Crazy Creek Ranch 9/1/26 76.9   1.5 1448 49.7   0.8 0101 52.6   0.3 71   5 95   1 41   4 2.1   0.1 13.4   1.8 1818 SW | 219 0.00 0.00 0.120   0.016 371   85 0   0
Whitton Ranch (201e) 9/1/26 78.5   0.7 1418 46.0   0.8 0101 51.7   0.1 71   4 100   0 37   3 1.9   0.3 12.0   0.2 1812 WNW | 283 0.00 0.03 0.108   0.028 317   112 40   20
Lytton East (Shop Hill Bottom) 9/1/26 74.1   3.1 1420 47.8   0.2 0102 51.0   0.0 70   6 98   0 39   3 2.1   1.0 13.7   0.5 1450 SSW | 206 0.01 0.01 0.108   0.038 326   146 0   0
Lytton East (Hill 5) 9/1/26 73.7   2.8 1432 52.2   1.8 0117 51.4   0.3 71   7 94   3 40   3 3.3   0.9 17.1   0.5 1805 W | 262 0.00 0.00 0.112   0.026 302   131 10   10
Lytton West Lower (Lew 6) 9/1/26 76.1   1.7 1429 47.4   0.3 0106 51.1   0.1 70   7 100   0 37   5 2.7   0.2 15.7   0.8 1448 SW | 234 0.00 0.01 0.115   0.030 328   157 0   0
Lytton West Hill (23PS) 9/1/26 73.4   3.2 1421 53.1   2.1 0111 52.1   0.4 71   7 93   6 40   4 2.6   0.6 13.6   0.4 1732 SW | 231 0.00 0.01 0.110   0.038 338   160 40   10
Big River 9/1/26 72.7   3.0 1412 52.0   1.6 0101 53.6   0.5 76   4 97   1 47   1 2.4   0.0 14.0   0.5 1816 SW | 234 0.00 0.00 0.105   0.036 330   156 50   10
Jimtown-North (Piccolo Ranch 15) 9/1/26 75.4   3.2 1442 48.9   0.4 0101 50.3   0.4 68   4 100   0 34   2 2.3   0.6 15.1   2.4 1448 SSW | 209 0.00 0.00 0.121   0.006 337   47 0   0
HWY 128/Chalk Hill Rd (Landslide) 9/1/26 76.8   1.7 1358 48.5   0.0 0104 51.8   0.1 71   3 94   2 39   1 2.2   0.1 15.3   1.9 1818 SSE | 166 0.00 0.00 0.109   0.015 310   77 0   0
N Chalk Hill Rd (Ranch 63) 9/1/26 73.9   2.3 1442 47.6   0.1 0101 50.7   0.1 71   3 94   2 41   1 2.1   0.4 14.0   0.2 1519 WSW | 240 0.00 0.00 0.109   0.016 318   82 10   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) 9/1/26 75.4   1.9 1449 47.2   2.3 0243 49.9   0.6 71   2 96   2 36   2 3.0   0.4 17.3   3.7 1508 SSW | 198 0.00 0.00 0.125   0.010 376   57 0   0
Red Tail 9/1/26 72.9   3.3 1435 48.9   1.3 0108 52.5   0.8 75   2 92   1 48   1 3.1   0.2 18.0   2.7 1513 S | 177 0.00 0.01 0.119   0.016 370   83 50   10
Franz Valley (Stornetta) 9/1/26 73.7   1.8 1405 47.2   1.5 0228 50.3   0.9 - 94   2 39   2 1.9   0.4 17.1   1.9 1547 W | 271 0.00 0.00 - - 0   10
Upper Dry Creek Valley 9/1/26 76.0   3.6 1255 50.1   1.4 0136 51.9   0.1 72   1 94   0 38   3 2.3   0.2 16.8   4.0 1811 WNW | 301 0.01 0.01 0.118   0.040 354   156 40   20
Lower Dry Creek Valley 9/1/26 74.6   2.7 1414 48.4   0.3 0112 51.2   0.6 70   7 100   0 38   4 1.1   1.5 20.0   5.0 1804 WNW | 288 0.00 0.01 0.103   0.044 319   155 20   10
Max   78.5 - 55.6 - 53.6 79 100 48 4.7 22.6 - - 0.01 0.05 0.125 376 -
Avg   - - - - 51.4 72 - - 2.6 - - - - - - - -
Min   69.8 - 46.0 - 49.3 67 89 34 1.1 12.0 - - 0.00 0.00 0.095 259 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 9/2/26 10:12 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) 9/1/26 74.4   4.1 1331 52.2   0.6 0236 53.0   1.1 73 84   1 47   1 0.0 0.0   0.0 0101 0.01 0.03 0.102   0.024 372   83 0
Windsor-East (Ranch 16) 9/1/26 74.7   0.1 1558 50.9   3.1 0231 52.5   1.0 71 94   0 40   4 3.4 16.2   0.1 1438 0.00 0.00 0.117   0.025 326   140 80
Mark West-North (Ranch 14) 9/1/26 75.5   0.1 1403 52.0   2.0 0124 52.3   0.6 70 95   0 38   7 1.5 14.0   0.9 1524 0.00 0.00 - - 0
Windsor-SE (Silk Rd) 9/1/26 74.1   1.8 1448 47.1   2.0 0234 52.8   0.6 75 96   2 41   5 2.7 16.1   5.0 1515 0.00 0.02 0.132   0.001 422   34 80
Fulton-NW (Ranch 5) 9/1/26 73.9   0.3 1416 49.0   0.4 0236 53.1   1.0 74 94   1 43   6 2.8 15.5   1.1 1453 0.00 0.00 0.119   0.014 372   84 80
Bisordi (Fulton) 9/1/26 74.4   1.0 1442 48.6   1.6 0231 54.3   1.8 77 96   2 48   6 2.5 16.1   2.9 1458 0.00 0.00 0.117   0.020 380   99 80
Windsor-South (Laughlin Rd) 9/1/26 74.6   1.9 1406 51.5   0.6 0241 52.7   0.8 72 93   1 41   4 - - - 0.00 0.00 - - 70
Fulton-SE (Barnes Rd) 9/1/26 72.9   1.0 1419 50.9   2.3 0218 53.5   1.4 73 94   1 45   6 2.9 17.0   4.1 1509 0.00 0.00 - - 80
Fulton-SW (Ranch 21) 9/1/26 73.7   0.6 1421 50.3   2.6 0207 52.7   1.4 73 100   7 0   47 3.3 18.6   5.3 1451 0.00 0.00 0.139   0.003 436   50 80
NW Santa Rosa (Piner Road) 9/1/26 73.2   1.9 1421 47.3   0.7 0226 56.2   1.6 84 100   0 50   4 2.2 14.9   1.9 1810 0.00 0.00 - - 80
River Rd South (Denner Ranch) 9/1/26 73.4   1.0 1438 48.3   0.9 0222 2.0   5.5 36 100   0 0   0 4.4 20.4   0.2 1755 - - - - 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) 9/1/26 79.5   0.9 1238 48.3   0.5 0252 53.2   0.9 73 96   1 38   2 - - - 0.00 0.04 - - 10
SunnyView Vineyard (SCWC) 9/1/26 73.5   0.2 1422 45.4   0.0 0228 52.1   1.8 74 96   1 41   6 2.7 16.5   3.3 1436 0.00 0.00 0.120   0.001 361   42 90
Guerneville Rd West (Balletto) 9/1/26 73.4   0.3 1520 48.2   0.2 0221 54.7   1.5 78 96   0 51   4 2.9 17.4   4.1 1447 0.00 0.11 - - 80
Sanchietti Ranch 9/1/26 74.8   0.2 1420 49.1   1.6 0203 56.0   2.3 - 95   1 50   8 3.6 19.7   2.0 1438 0.00 0.00 - - 80
Occidental Rd (Sebastopol) 9/1/26 75.4   0.7 1218 49.8   3.6 0149 58.7   2.4 89 100   0 54   6 3.1 22.1   7.2 1444 0.00 0.00 - - 80
Harper's Rest (Windsor-West) 9/1/26 75.6   3.4 1351 48.3   0.2 0157 51.3   0.2 - 96   1 35   4 1.9 15.6   4.8 1447 0.00 0.04 - - 0
Lower Westside Rd (Ranch 12) 9/1/26 74.3   1.3 1338 47.7   1.5 0251 51.8   0.2 73 96   0 40   6 2.7 21.7   6.0 1550 0.00 0.03 - - 80
Guerneville (Laughlin Rd) 9/1/26 74.0   0.0 1318 46.5   1.4 0236 52.0   1.5 76 94   2 43   4 2.3 19.6   5.0 1508 0.01 0.03 - - 80
Korbel (Winery) 9/1/26 73.4   0.6 1255 48.7   1.2 0238 53.5   1.4 77 96   1 43   6 1.2 16.6   3.5 1317 0.00 0.01 - - 80
Forestville (Shone Farms) 9/1/26 74.4   2.7 1354 51.5   2.5 0203 53.5   0.6 75 95   0 44   4 2.6 16.0   3.1 1540 0.00 0.04 0.114   0.014 354   81 80
Forestville-NE (Ranch 30) 9/1/26 73.7   2.2 1229 49.4   0.0 0216 53.9   0.8 79 98   2 48   3 3.1 18.5   2.5 1431 0.00 0.03 0.118   0.016 376   83 0
Foggy Bend (Ranch 41) 9/1/26 73.9   1.9 1357 50.6   0.7 0209 54.5   0.8 78 95   1 50   4 3.5 19.7   4.6 1451 0.00 0.03 0.132   0.002 438   30 80
Last Stop 9/1/26 72.9   3.5 1332 47.4   0.5 0244 52.6   0.7 77 97   0 46   2 2.2 15.8   0.3 1727 0.00 0.02 0.113   0.024 367   110 20
Green Valley Vineyard 9/1/26 72.6   1.0 1202 48.8   1.6 0253 53.0   1.1 77 97   0 45   4 2.9 20.8   2.6 1443 0.00 0.07 0.056   0.026 102   81 80
Park Royal 9/1/26 74.3   0.4 1420 49.2   1.2 0224 52.8   1.7 73 92   3 41   6 - - - 0.00 0.00 - - 80
Merino 9/1/26 77.3   0.1 1453 47.0   2.0 0215 54.9   2.3 80 100   0 44   5 1.7 14.3   2.0 1433 0.00 0.00 0.130   0.001 428   16 80
Green Valley (Sanchietti) 9/1/26 75.4   0.8 1414 43.7   0.9 0311 - - - - - - - - - - - 80
Keefer Ranch (Green Valley) 9/1/26 72.1   1.5 1215 46.0   0.2 0312 53.1   1.0 78 96   1 48   4 - - - 0.00 0.04 - - 50
Graton-West (Dutton Ranch) 9/1/26 74.5   0.7 1356 46.5   1.0 0305 57.0   1.3 88 100   0 43   8 2.1 15.4   3.2 1527 0.00 0.05 - - 80
Graton-South (Mill Station Rd) 9/1/26 70.9   0.4 1405 51.1   7.0 0431 54.7   3.0 80 97   1 48   6 1.7 11.4   1.4 1522 0.00 0.03 - - 30
Occidental (Horseshoe Bend) 9/1/26 70.6   0.9 1408 50.1   1.4 0236 54.4   1.6 - 100   0 48   8 - - - 0.00 0.08 - - 50
Sexton Valley (Jacqueline's Blk) 9/1/26 73.2   2.0 1227 52.1   7.5 0258 56.4   3.2 83 98   1 53   6 2.2 19.2   2.4 1537 0.00 0.09 - - 60
Sebastopol Hills (Burnside Rd) 9/1/26 68.8   0.4 1507 54.2   3.9 0207 56.4   2.6 87 100   0 57   6 3.8 14.6   5.1 1553 0.00 0.00 - - 80
Pleasant Hill 9/1/26 74.3   1.8 1417 53.7   7.1 0132 54.9   2.5 - 96   0 44   7 3.0 17.4   0.7 1741 0.00 0.05 - - 90
Seaview/Fort Ross (Hirsch) 9/1/26 65.5   0.9 1404 53.0   4.5 0732 52.9   2.9 88 97   2 65   18 2.4 12.0   0.2 1418 0.00 0.06 0.093   0.051 355   229 30
Max   79.5 - 54.2 - 58.7 89 100 65 4.4 22.1 - 0.01 0.11 0.139 438 -
Avg   - - - - 52.4 76 - - 2.6 - - - - - - -
Min   65.5 - 43.7 - 2.0 36 84 0 0.0 0.0 - 0.00 0.00 0.056 102 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 9/2/26 10:12 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 9/1/26 72.3   0.8 1351 53.4   5.3 0448 52.1   1.1 96   1 44   3 1.6   0.2 11.5   0.5 1507 WNW | 288 0.00 0.01 0.067   0.038 195   166 90   10
Lower Bennett Valley 9/1/26 73.2   1.5 1417 50.2   8.8 0112 53.0   1.7 100   0 43   9 3.0   0.0 16.3   0.7 1216 W | 277 0.00 0.00 0.101   0.023 302   136 80   10
Kenwood (Wildwood) 9/1/26 75.0   0.2 1404 51.3   5.8 0023 52.3   0.9 96   4 36   8 2.5   0.3 16.3   3.3 1628 NNW | 344 0.00 0.00 0.136   0.001 450   13 20   10
Sonoma Valley (Bedrock) 9/1/26 73.2   1.5 1449 52.3   7.4 0037 50.3   0.4 91   1 36   7 - - - - 0.00 0.00 - - 80   10
Sonoma-West (Arnold) 9/1/26 77.8   3.8 1338 52.8   7.8 0059 51.9   1.3 89   5 33   13 4.6   0.1 20.0   2.3 1530 SW | 233 0.00 0.00 0.163   0.014 474   9 20   10
Sonoma Valley HS 9/1/26 75.7   3.0 1347 54.9   6.8 0044 54.7   1.1 96   4 41   13 2.8   0.1 10.3   3.0 1937 W | 278 0.00 0.00 0.130   0.009 405   19 80   10
Sonoma East (Bundschu01) 9/1/26 76.0   2.9 1405 52.0   6.6 0059 52.1   0.9 91   4 34   13 3.9   0.1 24.3   2.8 1043 WSW | 252 0.00 0.00 0.148   0.014 421   14 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) 9/1/26 77.2   2.7 1432 51.7   6.1 0052 52.0   0.4 89   4 32   13 4.1   0.2 18.2   0.7 1512 WSW | 241 0.00 0.00 - - 100   10
Ricci Vineyards (Carneros) 9/1/26 77.8   3.5 1318 53.1   7.0 0059 52.4   1.3 90   6 32   14 5.6   0.2 18.7   1.5 1525 W | 262 0.00 0.01 0.151   0.004 416   49 90   10
Carneros (Ranch 71) 9/1/26 74.4   2.2 1333 56.7   5.5 0501 52.4   0.1 92   2 35   13 7.4   0.4 22.0   4.9 1514 WSW | 246 0.00 0.00 0.151   0.008 401   48 50   10
Carneros Upper (Ranch 81) 9/1/26 73.8   0.8 1338 56.9   4.8 0508 52.3   0.3 - - 10.0   0.0 25.8   3.8 1533 WNW | 290 - - - - 50   10
Carneros Lower (Ranch 81) 9/1/26 78.6   1.0 1536 52.5   2.4 0059 53.1   0.4 91   7 37   4 1.1   0.3 15.9   1.1 1322 SSE | 150 0.00 0.00 0.017   0.006 0   0 80   20
Rohnert Park-West (Stony Point) 9/1/26 73.2   1.5 1258 53.4   12.2 0007 55.7   3.0 96   1 47   10 4.2   0.7 20.2   1.8 1544 W | 271 0.00 0.00 - - 80   10
Cartograph Wines Base 9/1/26 71.2   1.4 1458 55.9   6.6 2349 56.3   2.1 98   0 52   11 5.0   0.2 22.0   3.9 1501 SW | 226 0.00 0.09 0.123   0.009 422   1 70   10
Cartograph Wines Remote 9/1/26 74.1   4.7 1257 54.3   8.8 2328 - - - - - - - - - - - 60   10
Rice-Spivak Vineyard 9/1/26 74.5   1.9 1256 49.8   11.4 2322 - - - - - - - - - - - 70   10
Penngrove (Asellus) 9/1/26 74.5   2.3 1246 52.4   7.4 0018 53.1   1.5 95   2 38   11 3.3   0.3 17.0   1.1 1801 WNW | 296 0.00 0.00 - - 80   10
Petaluma (Ranch 10) 9/1/26 74.6   3.5 1233 51.7   6.9 0048 53.0   1.4 91   4 38   15 3.2   0.0 14.6   1.8 1818 WSW | 238 0.00 0.00 0.128   0.011 385   5 50   10
Max   78.6 - 56.9 - 56.3 100 52 10.0 25.8 - - 0.00 0.09 0.163 474 -
Avg   - - - - 52.9 - - 4.1 - - - - - - - -
Min   71.2 - 49.8 - 50.3 89 32 1.1 10.3 - - 0.00 0.00 0.017 0 -