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Latest Observation

25 Stations

Daily Data | America/Los_Angeles
as of 9/5/26 12:59 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) 9/4/26 74.0   10.6 1550 47.4   2.9 0702 47.1   5.7 74   16 100   0 27   37 7.4   2.5 26.1   7.0 2025 NW | 322 0.00 0.33 0.173   0.105 602   362 10   10
Rockpile Lower (Cooley) 9/4/26 75.9   8.8 1507 50.3   4.3 0615 47.6   6.5 67   17 92   8 24   36 4.3   0.4 20.3   4.1 1743 W | 276 0.00 0.33 - - 10   10
Cloverdale-East (Ranch 83) 9/4/26 80.2   8.7 1534 43.5   6.9 0632 - - - - 2.3   0.2 16.1   5.5 1216 NW | 319 0.00 0.12 0.174   0.092 568   346 70   20
Cloverdale-SE (Ranch 38) 9/4/26 79.8   8.9 1647 50.3   4.8 0647 49.5   6.4 67   16 94   4 29   25 5.0   0.2 18.8   3.4 1742 NNW | 341 0.00 0.11 0.158   0.091 490   308 20   20
Geyserville-North (Hoffman) 9/4/26 81.8   9.0 1450 45.5   9.0 0702 50.1   7.1 69   13 96   1 30   23 2.3   0.2 13.4   2.5 1527 W | 259 0.00 0.00 0.164   0.104 525   365 40   20
Geyserville (Ranch 3) 9/4/26 79.5   6.4 1528 46.9   7.6 0651 49.3   7.8 68   14 100   0 25   23 2.6   0.0 12.8   1.4 1430 WNW | 302 0.00 0.13 0.171   0.107 547   372 80   20
Geyserville-East (Ranch 40) 9/4/26 80.5   10.3 1521 50.0   5.4 0650 50.6   6.0 69   17 97   3 29   28 3.8   1.0 20.5   3.0 1744 S | 172 0.00 0.12 0.169   0.114 534   378 20   20
Geyserville-South (Nervo Station) 9/4/26 80.5   9.0 1307 48.4   6.7 0641 - - - - 2.4   0.6 15.2   5.0 1803 SSW | 211 0.00 0.21 - - 20   20
Peterson (Ranch 09) 9/4/26 78.5   8.7 1444 44.6   8.3 0559 48.2   8.4 70   14 98   2 26   25 2.2   0.1 13.4   1.1 1542 S | 172 0.00 0.20 0.166   0.102 538   350 70   20
Crazy Creek Ranch 9/4/26 79.3   8.7 1547 46.4   6.8 0639 51.0   7.4 75   12 100   3 32   30 2.0   0.3 14.1   2.7 1719 SSE | 154 0.01 0.23 0.170   0.114 563   398 30   20
Whitton Ranch (201e) 9/4/26 80.9   7.2 1645 42.4   11.1 0556 48.7   8.8 72   13 100   0 27   23 1.9   0.0 12.7   1.1 1344 NW | 312 0.00 0.29 0.149   0.083 465   276 70   20
Lytton East (Shop Hill Bottom) 9/4/26 78.1   5.4 1412 45.4   8.3 0632 49.0   8.0 70   14 100   0 27   25 2.2   0.4 13.2   1.0 1518 SSW | 204 0.00 0.27 0.168   0.098 551   346 30   20
Lytton East (Hill 5) 9/4/26 79.0   7.1 1410 47.6   8.0 0620 49.7   7.3 69   16 98   0 28   25 3.5   0.6 15.5   1.3 1723 S | 191 0.00 0.25 0.160   0.091 486   300 20   20
Lytton West Lower (Lew 6) 9/4/26 77.9   5.6 1516 45.6   6.0 0522 49.3   7.6 72   12 100   0 30   22 2.7   0.3 15.3   3.3 1206 W | 266 0.00 0.28 0.173   0.101 552   349 30   20
Lytton West Hill (23PS) 9/4/26 77.6   4.9 1603 48.5   7.2 0655 50.4   7.3 70   16 100   0 29   23 2.4   0.2 13.6   1.0 1525 SSW | 196 0.00 0.26 0.174   0.101 573   354 40   20
Big River 9/4/26 77.1   8.2 1509 48.0   6.9 0622 51.7   6.9 75   15 100   1 34   33 1.9   0.6 15.3   1.5 1427 S | 173 0.00 0.28 0.174   0.109 600   391 50   20
Jimtown-North (Piccolo Ranch 15) 9/4/26 79.3   7.8 1537 46.8   4.4 0543 48.5   9.1 70   16 100   0 23   32 1.6   0.2 14.9   2.4 1552 SW | 228 0.01 0.20 0.139   0.082 441   283 30   20
HWY 128/Chalk Hill Rd (Landslide) 9/4/26 79.3   8.7 1438 47.9   5.0 0526 50.2   7.2 73   13 100   4 25   36 1.8   0.4 13.1   0.4 1536 S | 185 0.00 0.31 0.147   0.094 466   317 30   20
N Chalk Hill Rd (Ranch 63) 9/4/26 77.4   6.8 1432 46.9   4.8 0626 49.7   6.6 73   15 100   0 27   34 1.9   0.3 14.3   2.8 1559 SSW | 198 0.01 0.29 0.153   0.094 494   310 40   20
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) 9/4/26 77.6   8.5 1435 46.3   5.5 0055 48.6   7.2 73   14 98   1 24   29 2.3   0.3 19.2   5.7 1619 WNW | 283 0.00 0.26 0.161   0.095 524   319 0   0
Red Tail 9/4/26 78.6   8.9 1346 45.6   7.5 0703 50.2   6.8 73   13 96   3 35   29 2.6   0.1 16.2   1.9 1611 S | 189 0.00 0.28 0.166   0.098 563   349 50   20
Franz Valley (Stornetta) 9/4/26 76.6   8.1 1438 48.1   5.6 0722 49.8   7.3 - 100   1 27   36 1.4   0.1 11.6   1.1 1646 SW | 219 0.01 0.43 - - 0   0
Upper Dry Creek Valley 9/4/26 80.7   8.7 1611 44.3   8.3 0658 48.4   8.0 67   14 98   1 23   25 2.0   0.4 14.2   2.0 1802 SW | 226 0.00 0.14 0.177   0.098 588   364 70   10
Lower Dry Creek Valley 9/4/26 78.1   5.7 1431 47.5   6.2 0425 50.0   8.0 73   13 100   0 29   21 1.2   0.3 14.2   0.0 1743 SW | 224 0.00 0.26 0.148   0.081 477   278 50   20
Max   81.8 - 50.3 - 51.7 75 100 35 7.4 26.1 - - 0.01 0.43 0.177 602 -
Avg   - - - - 49.4 71 - - 2.7 - - - - - - - -
Min   74.0 - 42.4 - 47.1 67 92 23 1.2 11.6 - - 0.00 0.00 0.139 441 -

Sonoma County-Central Daily Obs

37 Stations

Daily Data | America/Los_Angeles
as of 9/5/26 12:59 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) 9/4/26 77.8   6.7 1304 53.4   2.4 0753 52.6   3.9 72 90   4 37   28 0.3 13.3   13.3 1502 0.01 0.50 0.156   0.095 561   357 20
Windsor-East (Ranch 16) 9/4/26 76.9   6.6 1528 49.4   4.5 0403 51.2   7.0 74 100   0 31   27 2.6 15.1   2.2 1641 0.00 0.23 0.172   0.121 554   403 80
Mark West-North (Ranch 14) 9/4/26 76.9   6.3 1515 50.8   3.0 0349 51.0   7.1 72 98   1 34   23 1.3 12.8   3.4 1647 0.00 0.24 - - 0
Windsor-SE (Silk Rd) 9/4/26 75.8   4.4 1450 49.7   3.9 0059 51.7   6.6 76 100   2 39   20 2.1 13.8   2.8 1630 0.00 0.32 0.162   0.100 545   353 50
Fulton-NW (Ranch 5) 9/4/26 74.8   5.0 1335 49.9   4.3 0350 26.4   19.0 45 100   0 3   0 2.2 13.8   3.3 1645 0.00 0.23 0.170   0.095 564   391 50
Bisordi (Fulton) 9/4/26 75.2   5.8 1431 49.1   2.9 0355 52.9   5.9 79 98   2 46   24 2.0 14.9   3.3 1719 0.00 0.22 0.165   0.114 573   411 50
Windsor-South (Laughlin Rd) 9/4/26 76.4   5.1 1448 51.6   4.3 0709 34.8   22.6 59 100   0 0   0 - - - 0.00 0.17 - - 40
Fulton-SE (Barnes Rd) 9/4/26 75.6   5.6 1330 52.3   2.7 0339 52.5   6.2 74 97   2 38   24 0.4 8.0   4.2 2113 0.01 0.29 - - 50
Fulton-SW (Ranch 21) 9/4/26 75.3   5.3 1407 49.9   2.9 0317 12.7   16.2 43 100   0 0   0 2.6 15.6   3.1 1706 0.00 0.20 0.178   0.099 576   404 50
NW Santa Rosa (Piner Road) 9/4/26 75.2   5.3 1505 49.5   4.1 0059 53.5   7.3 83 100   0 45   26 1.7 14.5   1.5 1610 0.00 0.00 - - 50
River Rd South (Denner Ranch) 9/4/26 74.9   5.7 1309 49.3   4.9 0611 -10.0   26.5 27 100   0 0   0 3.4 20.4   6.4 1720 - - - - 60
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) 9/4/26 80.3   5.1 1403 49.4   5.1 0059 51.6   7.5 76 99   0 35   20 - - - 0.00 0.21 - - 40
SunnyView Vineyard (SCWC) 9/4/26 75.6   5.3 1449 47.9   3.7 0059 50.5   7.3 77 100   0 37   22 2.1 14.8   4.3 1737 0.01 0.27 0.146   0.093 477   310 60
Guerneville Rd West (Balletto) 9/4/26 75.1   4.4 1441 50.1   3.9 0302 52.6   7.1 80 100   0 45   21 2.2 14.6   3.7 1612 0.01 0.43 - - 50
Sanchietti Ranch 9/4/26 75.9   4.3 1402 49.4   4.4 0455 53.3   6.6 - 98   2 48   20 2.6 18.7   5.8 1650 0.01 0.28 - - 100
Occidental Rd (Sebastopol) 9/4/26 76.4   5.7 1344 48.7   5.3 0502 55.8   6.3 89 100   0 56   36 2.1 17.1   5.3 1614 0.00 0.20 - - 50
Harper's Rest (Windsor-West) 9/4/26 78.1   5.2 1553 49.2   3.2 0407 50.7   6.3 - 97   1 34   20 1.6 11.2   1.1 1634 0.00 0.45 - - 10
Lower Westside Rd (Ranch 12) 9/4/26 75.7   5.3 1408 49.8   3.8 0412 51.5   6.6 77 100   0 38   22 1.7 17.2   3.2 1745 0.00 0.45 - - 80
Guerneville (Laughlin Rd) 9/4/26 74.0   4.4 1309 50.5   3.4 0051 52.8   5.2 79 98   2 39   28 2.3 15.6   2.8 1555 0.00 0.81 - - 80
Korbel (Winery) 9/4/26 74.4   3.7 1205 52.3   2.8 0017 53.4   5.1 78 100   2 40   25 1.6 14.0   1.3 1508 0.00 0.52 - - 80
Forestville (Shone Farms) 9/4/26 75.7   5.2 1531 48.1   7.9 0525 52.4   6.1 77 98   0 42   20 2.0 15.3   3.7 1737 0.01 0.43 0.144   0.081 481   280 50
Forestville-NE (Ranch 30) 9/4/26 76.3   5.6 1231 48.9   5.4 0531 52.8   5.8 80 100   1 45   21 2.2 16.9   4.9 1612 0.00 0.39 0.150   0.087 503   296 30
Foggy Bend (Ranch 41) 9/4/26 74.9   5.0 1404 51.1   5.7 0615 53.5   5.4 80 98   1 48   21 2.5 16.6   3.8 1716 0.00 0.42 0.149   0.081 511   289 50
Last Stop 9/4/26 77.2   7.3 1321 47.8   8.7 0556 51.5   6.5 77 98   2 43   22 2.0 15.6   3.0 1511 0.00 0.39 0.154   0.083 532   301 0
Green Valley Vineyard 9/4/26 73.5   3.5 1358 49.0   6.2 0545 51.5   6.6 79 98   0 43   22 2.4 20.6   4.6 1647 0.01 0.57 0.120   0.062 382   205 50
Park Royal 9/4/26 74.6   4.2 1427 49.3   3.9 0334 51.1   7.4 76 98   1 38   22 - - - 0.01 0.21 - - 50
Merino 9/4/26 77.6   4.9 1604 48.1   4.3 0059 52.7   7.2 81 100   1 42   23 1.5 15.5   5.2 1428 0.01 0.33 0.150   0.094 512   328 100
Green Valley (Sanchietti) 9/4/26 76.6   5.2 1322 46.2   7.3 0509 - - - - - - - - - - - 50
Keefer Ranch (Green Valley) 9/4/26 73.8   3.3 1328 47.2   7.0 0531 51.6   7.1 80 98   2 45   21 - - - 0.00 0.48 - - 20
Graton-West (Dutton Ranch) 9/4/26 74.7   2.3 1410 48.1   6.8 0530 54.0   8.5 85 100   0 42   41 1.8 17.4   7.2 1720 0.00 0.61 - - 50
Graton-South (Mill Station Rd) 9/4/26 72.8   3.1 1421 46.8   7.6 0615 51.2   7.8 80 99   2 45   22 0.9 10.2   2.7 1703 0.00 0.40 - - 0
Occidental (Horseshoe Bend) 9/4/26 70.9   3.8 1511 51.0   2.7 0651 53.0   6.1 - 100   0 47   27 - - - 0.00 0.75 - - 20
Sexton Valley (Jacqueline's Blk) 9/4/26 74.0   3.2 1343 47.6   7.1 0647 52.7   7.5 81 99   1 47   22 1.9 15.5   3.4 1638 0.01 0.25 - - 30
Sebastopol Hills (Burnside Rd) 9/4/26 70.5   3.2 1419 50.9   4.7 0704 53.7   6.2 84 100   0 51   24 2.1 16.4   0.3 1421 0.00 0.00 - - 50
Pleasant Hill 9/4/26 74.4   2.1 1235 48.4   7.0 0629 51.9   7.1 - 97   0 39   21 2.4 14.8   2.9 1551 0.00 0.49 - - 60
Seaview/Fort Ross (Hirsch) 9/4/26 66.0   5.1 1407 49.1   3.5 0558 50.2   5.6 83 97   0 55   30 3.4 12.1   2.5 1419 0.01 0.07 0.145   0.090 580   368 0
Max   80.3 - 53.4 - 55.8 89 100 56 3.4 20.6 - 0.01 0.81 0.178 580 -
Avg   - - - - 48.2 74 - - 2.0 - - - - - - -
Min   66.0 - 46.2 - -10.0 27 90 0 0.3 8.0 - 0.00 0.00 0.120 382 -

Sonoma County-South Daily Obs

19 Stations

Daily Data
as of 9/5/26 12:59 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 9/4/26 74.0   7.1 1438 48.8   6.5 0646 50.3   6.7 97   0 36   34 2.0   0.8 11.4   2.1 1428 SSE | 163 0.00 0.01 0.119   0.092 396   306 60   10
Lower Bennett Valley 9/4/26 75.2   9.0 1407 46.6   5.0 0057 51.4   7.2 100   0 31   48 2.9   0.9 13.8   2.7 1655 SSW | 208 0.00 0.39 0.157   0.119 540   412 50   10
Kenwood (Wildwood) 9/4/26 76.4   8.8 1449 51.0   5.1 0052 51.9   6.3 100   0 32   43 2.5   0.9 18.2   7.3 1319 ESE | 113 0.00 0.21 0.157   0.113 539   391 0   0
Sonoma Valley (Bedrock) 9/4/26 75.3   9.6 1452 48.6   6.0 0606 49.7   7.4 98   3 30   53 - - - - 0.00 0.29 - - 80   20
Sonoma-West (Arnold) 9/4/26 77.7   10.2 1425 48.8   7.3 0452 51.3   6.8 100   7 29   46 3.2   1.1 20.2   7.3 1709 W | 271 0.01 0.35 0.193   0.145 630   480 20   20
Sonoma Valley HS 9/4/26 77.2   10.9 1430 51.6   4.0 0525 54.2   5.9 100   0 36   47 2.1   0.7 6.6   1.4 2030 W | 268 0.00 0.01 0.160   0.123 560   437 50   10
Sonoma East (Bundschu01) 9/4/26 77.9   9.3 1444 49.1   2.2 0059 51.3   6.9 96   2 30   44 2.9   0.6 20.0   5.5 1632 W | 279 0.00 0.23 0.175   0.132 573   451 80   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) 9/4/26 79.4   10.2 1439 50.0   2.1 0058 51.7   6.3 96   3 28   43 2.7   0.8 19.2   6.4 1456 WSW | 251 0.01 0.18 - - 100   20
Ricci Vineyards (Carneros) 9/4/26 77.6   8.5 1427 52.6   1.5 0101 52.7   5.3 96   3 30   40 5.0   0.8 18.1   2.0 1852 WSW | 258 0.01 0.12 0.184   0.127 581   425 80   10
Carneros (Ranch 71) 9/4/26 75.6   7.6 1432 54.0   3.4 0734 52.7   5.2 100   5 34   39 5.4   1.8 22.5   7.5 1809 WSW | 254 0.00 0.07 0.178   0.132 566   435 20   10
Carneros Upper (Ranch 81) 9/4/26 76.6   9.3 1532 53.4   3.7 0728 11.8   31.7 - - 7.9   1.8 29.0   5.7 1530 S | 187 - - - - 20   10
Carneros Lower (Ranch 81) 9/4/26 80.1   11.6 1554 52.4   1.3 0221 6.8   24.3 100   0 0   0 1.1   0.0 13.3   0.9 1747 NW | 316 0.01 0.01 0.021   0.014 0   2 50   10
Rohnert Park-West (Stony Point) 9/4/26 73.6   4.9 1340 47.6   6.1 0044 53.4   6.4 99   0 44   30 2.5   0.8 19.2   6.2 1432 W | 269 0.01 0.19 - - 50   10
Cartograph Wines Base 9/4/26 71.8   3.5 1236 50.0   6.6 0655 55.0   4.5 99   2 56   25 4.0   0.1 22.3   3.1 1720 SW | 230 0.00 0.30 0.148   0.094 545   349 40   10
Cartograph Wines Remote 9/4/26 73.2   3.7 1229 49.4   6.1 0708 - - - - - - - - - - - 30   10
Rice-Spivak Vineyard 9/4/26 74.6   5.1 1316 44.5   12.0 0054 - - - - - - - - - - - 40   10
Penngrove (Asellus) 9/4/26 75.3   6.6 1338 49.1   8.2 0042 52.4   6.2 98   1 31   39 2.5   0.2 15.6   3.6 1843 WNW | 287 0.09 0.33 - - 50   10
Petaluma (Ranch 10) 9/4/26 76.3   8.2 1408 50.6   7.3 0047 53.0   5.7 100   7 36   40 2.8   1.4 15.0   5.6 1721 WSW | 258 0.00 0.09 0.158   0.119 524   404 80   20
Max   80.1 - 54.0 - 55.0 100 56 7.9 29.0 - - 0.09 0.39 0.193 630 -
Avg   - - - - 46.8 - - 3.3 - - - - - - - -
Min   71.8 - 44.5 - 6.8 96 0 1.1 6.6 - - 0.00 0.01 0.021 0 -