| Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | RH (%) | 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 Lower (Cooley) | 12/3/25 | 67.2 0.5 | 1500 | 50.1 2.3 | 0010 | 27.0 13.3 | 33 | 68 6 | 19 17 | 3.1 | 11.0 3.0 | 1149 | NNE | 16 | 0.00 | 9.81 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 12/3/25 | 62.7 2.7 | 1506 | 48.5 3.4 | 0312 | 24.3 12.5 | 32 | 59 25 | 21 4 | 5.7 | 22.4 2.4 | 0427 | NNW | 339 | 0.00 | 10.06 | 0.093 0.005 | 233 31 | 0 0 |
| Cloverdale-East (Ranch 83) | 12/3/25 | 69.0 1.4 | 1435 | 38.5 5.0 | 2223 | 35.2 15.0 | - | - | - | 3.0 | 16.7 0.9 | 0852 | NNW | 330 | 0.00 | 7.68 | 0.055 0.000 | 199 20 | 0 0 |
| Cloverdale-SE (Ranch 38) | 12/3/25 | 67.3 0.9 | 1445 | 43.2 2.5 | 0500 | 34.8 9.1 | 53 | 86 12 | 24 22 | 5.0 | 17.1 1.8 | 0953 | SW | 223 | 0.00 | 8.28 | 0.074 0.016 | 195 27 | 0 0 |
| Geyserville-North (Hoffman) | 12/3/25 | 70.9 8.3 | 1454 | 35.3 0.1 | 0002 | 36.8 4.6 | 66 | 97 0 | 24 28 | 2.7 | 13.0 5.4 | 0616 | WNW | 301 | 0.00 | 0.00 | 0.057 0.010 | 189 18 | 0 0 |
| Geyserville (Ranch 3) | 12/3/25 | 69.8 7.5 | 1450 | 36.9 0.7 | 0038 | 36.4 6.0 | 66 | 100 0 | 20 29 | 2.6 | 13.6 5.7 | 0607 | WNW | 297 | 0.00 | 7.60 | 0.053 0.007 | 188 23 | 0 0 |
| Geyserville-East (Ranch 40) | 12/3/25 | 71.5 9.5 | 1523 | 44.5 4.2 | 0140 | 35.1 9.7 | 50 | 96 4 | 20 33 | 3.4 | 15.2 3.1 | 0113 | N | 0 | 0.00 | 7.91 | 0.061 0.007 | 204 38 | 0 0 |
| Geyserville-South (Nervo Station) | 12/3/25 | 70.2 8.1 | 1453 | 39.1 3.7 | 0210 | - | - | - | - | 2.2 | 12.1 4.7 | 0248 | WSW | 257 | 0.01 | 6.07 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 12/3/25 | 72.3 7.1 | 1452 | 35.6 2.0 | 2322 | 36.6 4.3 | 69 | 100 0 | 18 26 | 1.7 | 15.4 8.8 | 0630 | W | 280 | 0.01 | 7.77 | 0.042 0.005 | 169 6 | 0 0 |
| Jimtown-NE (Red Fan) | 8/26/25 | 88.9 0.8 | 1609 | 56.4 0.1 | 0146 | 53.1 1.9 | 64 | 94 2 | 20 8 | 3.5 | 13.4 0.5 | 1919 | S | 169 | 0.00 | 0.00 | 0.187 0.011 | 528 30 | 0 0 |
| HWY 128/Chalk Hill Rd (Landslide) | 12/3/25 | 71.6 6.3 | 1531 | 34.5 0.3 | 2240 | 36.0 4.9 | 67 | 100 0 | 18 24 | 2.8 | 22.0 15.6 | 0627 | N | 354 | 0.00 | 8.29 | 0.061 0.017 | 184 6 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 12/3/25 | 69.1 5.9 | 1446 | 34.9 0.9 | 2227 | 36.8 3.6 | 75 | 100 0 | 18 28 | 1.9 | 9.2 1.4 | 1038 | NE | 45 | 0.00 | 8.32 | 0.044 0.005 | 161 8 | - |
| Knights Valley (Bavarian Lion) | 12/3/25 | 66.6 1.0 | 1501 | 34.7 2.0 | 2318 | 27.0 12.4 | 39 | 90 8 | 16 21 | 4.5 | 22.7 3.3 | 0315 | NNW | 344 | 0.00 | 8.54 | 0.091 0.043 | 197 26 | - |
| Upper Dry Creek Valley | 12/3/25 | 70.3 7.4 | 1312 | 36.2 1.2 | 0217 | 36.9 6.3 | 69 | 99 0 | 17 31 | - | 8.4 0.5 | 1246 | WNW | 296 | 0.00 | 8.14 | 0.053 0.001 | 207 28 | - |
| Lower Dry Creek Valley | 12/3/25 | 71.8 8.8 | 1354 | 35.6 2.1 | 0629 | 38.1 5.6 | 77 | 100 0 | 18 37 | 2.3 | 9.2 0.2 | 1030 | WNW | 292 | 0.01 | 8.44 | 0.053 0.009 | 197 1 | 0 0 |
| Max | 72.3 | - | 50.1 | - | 38.1 | 77 | 100 | 24 | 5.7 | 22.7 | - | - | 0.01 | 10.06 | 0.093 | 233 | - | |
| Avg | - | - | - | - | 33.9 | 58 | - | - | 3.2 | - | - | - | - | - | - | - | - | |
| Min | 62.7 | - | 34.5 | - | 24.3 | 32 | 59 | 16 | 1.7 | 8.4 | - | - | 0.00 | 0.00 | 0.042 | 161 | - |
| Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | RH (%) | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Healdsburg-South (Sodini) | 12/3/25 | 72.4 9.8 | 1541 | 37.1 0.8 | 2354 | - | - | 100 0 | 17 33 | 1.4 | 12.1 10.1 | 0915 | 0.00 | 2.30 | - | - | 0 |
| Windsor-NW (Ranch 8) | 12/3/25 | 75.2 11.6 | 1550 | 40.1 1.6 | 0610 | 39.0 3.2 | 67 | 91 2 | 23 35 | 2.0 | 9.5 2.9 | 0847 | 0.00 | 8.70 | 0.060 0.015 | 223 6 | - |
| Windsor-East (Ranch 16) | 12/3/25 | 69.2 6.2 | 1430 | 36.1 3.8 | 2314 | 34.2 7.3 | 59 | 100 0 | 16 29 | 2.2 | 10.8 4.9 | 1255 | 0.00 | 6.49 | 0.063 0.017 | 206 8 | 0 |
| Mark West-North (Ranch 14) | 12/3/25 | 69.2 6.8 | 1208 | 37.4 2.4 | 2309 | 34.5 7.6 | 60 | 99 0 | 15 29 | 1.4 | 11.0 5.0 | 1432 | 0.00 | 7.48 | 0.023 0.016 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 12/3/25 | 69.4 5.8 | 1533 | 35.3 1.6 | 2236 | 36.4 6.4 | 70 | 100 0 | 17 32 | 2.1 | 14.2 8.0 | 1234 | 0.00 | 1.83 | 0.066 0.024 | 220 19 | 0 |
| Fulton-NW (Ranch 5) | 12/3/25 | 68.3 6.6 | 1147 | 36.3 2.8 | 2306 | 19.0 17.6 | 41 | 100 0 | 3 0 | 2.4 | 14.4 7.3 | 0552 | 0.00 | 7.57 | 0.071 0.028 | 209 16 | 0 |
| Windsor-South (Laughlin Rd) | 12/3/25 | 69.5 6.9 | 1434 | 38.1 0.8 | 2354 | 11.8 20.3 | 41 | 100 0 | 0 0 | - | - | - | 0.01 | 7.07 | - | - | - |
| Fulton-SE (Barnes Rd) | 12/3/25 | 68.7 6.3 | 1238 | 37.3 3.8 | 2357 | 37.0 5.1 | 66 | 98 0 | 23 22 | 1.5 | 12.2 4.5 | 1103 | 0.00 | 7.08 | - | - | - |
| Fulton-SW (Ranch 21) | 12/3/25 | 68.1 6.6 | 1158 | 37.5 2.9 | 2351 | 10.4 33.2 | 43 | 100 0 | 0 0 | 2.1 | 15.0 7.9 | 1454 | 0.00 | 7.42 | 0.070 0.018 | 247 8 | - |
| Santa Rosa-NW (Goldfields) | 12/3/25 | 70.8 7.6 | 1318 | 37.7 2.8 | 2354 | 36.4 6.6 | 65 | 100 0 | 18 30 | 2.5 | 15.2 7.5 | 1434 | 0.00 | 7.72 | 0.068 0.027 | 197 12 | - |
| Goldfields Remote | 12/3/25 | 68.6 6.6 | 1401 | 36.8 2.4 | 2253 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 12/3/25 | 67.4 5.9 | 1409 | 36.6 0.9 | 2357 | 39.4 4.3 | 75 | 100 0 | 23 36 | 1.0 | 9.1 2.7 | 1439 | 0.00 | 5.99 | - | - | - |
| River Rd South (Denner Ranch) | 12/3/25 | 71.1 7.8 | 1543 | 38.0 1.2 | 0700 | 38.3 5.3 | 72 | 100 0 | 19 33 | 2.8 | 13.4 5.5 | 1356 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 12/3/25 | 69.6 6.5 | 1540 | 38.3 1.4 | 2354 | 37.3 5.7 | 70 | 100 0 | 18 32 | 1.6 | 12.4 6.0 | 1358 | 0.00 | 8.11 | 0.025 0.020 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 12/3/25 | 69.2 6.1 | 1405 | 38.0 0.1 | 0001 | 38.4 5.3 | 72 | 100 0 | 18 34 | - | - | - | 0.00 | 7.13 | - | - | - |
| Guerneville Rd West (Balletto) | 12/3/25 | 68.3 5.6 | 1415 | 35.8 0.6 | 2241 | 38.5 4.9 | 76 | 100 0 | 23 36 | 1.8 | 12.9 5.9 | 1418 | 0.01 | 5.82 | - | - | - |
| Sanchietti Ranch | 12/3/25 | 68.8 6.6 | 1436 | 37.5 0.1 | 2359 | 40.0 4.9 | - | 100 0 | 25 39 | 2.3 | 10.8 2.3 | 1415 | 0.00 | 6.97 | - | - | - |
| Occidental Rd (Sebastopol) | 12/3/25 | 70.6 7.1 | 1600 | 36.0 0.1 | 0539 | 43.7 2.2 | 86 | 100 0 | 35 41 | 2.0 | 11.8 4.4 | 1427 | 0.00 | 5.79 | - | - | - |
| Lower Westside Rd (Ranch 12) | 12/3/25 | 72.4 9.0 | 1416 | 36.8 0.7 | 0546 | 39.1 4.2 | 77 | 100 0 | 17 32 | 0.9 | 7.1 1.0 | 1320 | 0.00 | 8.40 | - | - | 0 |
| Guerneville (Laughlin Rd) | 12/3/25 | 63.2 0.6 | 1247 | 37.1 2.6 | 2108 | 42.7 2.1 | 90 | 99 0 | 51 6 | 0.8 | 4.7 2.7 | 0423 | 0.00 | 9.26 | - | - | - |
| Korbel (Winery) | 12/3/25 | 65.6 2.5 | 1406 | 39.2 1.2 | 2144 | 43.8 1.4 | 89 | 100 0 | 46 13 | 0.5 | 5.1 0.2 | 0523 | 0.00 | 9.42 | - | - | - |
| Forestville (Shone Farms) | 12/3/25 | 70.7 7.7 | 1537 | 37.1 0.2 | 0552 | 39.0 4.5 | 73 | 98 0 | 21 36 | 2.2 | 12.3 5.6 | 1203 | 0.01 | 9.10 | 0.059 0.013 | 206 4 | 0 |
| Forestville-NE (Ranch 30) | 12/3/25 | 73.5 9.5 | 1542 | 37.7 0.2 | 0545 | 41.1 2.9 | 81 | 100 0 | 24 34 | 1.6 | 15.7 7.8 | 1201 | 0.01 | 8.56 | 0.057 0.012 | 225 12 | - |
| Green Valley Vineyard | 12/3/25 | 69.2 6.6 | 1515 | 38.3 3.3 | 0519 | 38.4 4.9 | 74 | 99 0 | 19 38 | 2.3 | 9.9 3.5 | 1147 | 0.01 | 9.85 | 0.047 0.014 | 154 16 | - |
| Green Valley (Sanchietti) | 12/3/25 | 70.6 5.2 | 1509 | 35.7 0.2 | 2252 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 12/3/25 | 68.3 5.3 | 1422 | 36.2 0.1 | 2342 | 39.9 3.5 | 81 | 100 0 | 26 38 | - | - | - | 0.00 | 8.55 | - | - | - |
| Graton-South (Mill Station Rd) | 12/3/25 | 68.9 6.2 | 1542 | 34.4 0.2 | 2335 | 38.1 4.1 | 77 | 100 1 | 20 33 | 0.5 | 7.3 1.9 | 1330 | 0.00 | 8.33 | - | - | 0 |
| Occidental (Horseshoe Bend) | 12/3/25 | 69.0 9.4 | 1514 | 42.2 1.0 | 0001 | 32.6 12.5 | - | 100 0 | 23 41 | - | - | - | 0.00 | 8.39 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 12/3/25 | 68.2 6.4 | 1515 | 36.1 0.9 | 0550 | 39.5 3.3 | 80 | 100 0 | 27 33 | 1.3 | 10.2 3.0 | 1011 | 0.00 | 6.96 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 12/3/25 | 67.0 7.0 | 1546 | 41.5 3.3 | 0223 | 36.4 8.5 | 54 | 100 0 | 26 39 | 1.9 | 12.7 2.0 | 0707 | 0.00 | 7.40 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 12/3/25 | 63.4 3.2 | 1432 | 50.4 3.7 | 0522 | 25.7 14.6 | 32 | 62 23 | 16 19 | 3.6 | 17.5 3.8 | 0328 | 0.00 | 13.08 | 0.078 0.021 | 215 35 | - |
| Max | 75.2 | - | 50.4 | - | 43.8 | 90 | 100 | 51 | 3.6 | 17.5 | - | 0.01 | 13.08 | 0.078 | 247 | - | |
| Avg | - | - | - | - | 35.4 | 68 | - | - | 1.8 | - | - | - | - | - | - | - | |
| Min | 63.2 | - | 34.4 | - | 10.4 | 32 | 62 | 0 | 0.5 | 4.7 | - | 0.00 | 1.83 | 0.023 | 0 | - |
| Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | 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 | 12/3/25 | 67.5 5.8 | 1503 | 41.6 1.2 | 0024 | 26.0 14.1 | 97 5 | 16 20 | 3.2 1.7 | 18.2 8.5 | 0451 | SSE | 148 | 0.00 | 5.39 | 0.075 0.016 | 243 25 | - |
| Lower Bennett Valley | 12/3/25 | 70.1 5.3 | 1431 | 33.5 2.2 | 2357 | 31.2 9.8 | 100 0 | 16 25 | 3.4 2.0 | 19.6 11.6 | 0627 | SW | 221 | 0.01 | 6.50 | 0.082 0.029 | 222 17 | 0 0 |
| Kenwood (Wildwood) | 12/3/25 | 68.2 4.0 | 1419 | 36.8 3.5 | 2307 | 30.2 11.0 | 100 0 | 16 32 | 3.0 1.5 | 21.4 12.6 | 0503 | NNE | 25 | 0.00 | 6.82 | 0.072 0.023 | 190 34 | - |
| Sonoma Valley (Bedrock) | 12/3/25 | 70.3 7.8 | 1446 | 35.2 1.9 | 2324 | 30.3 9.5 | 99 1 | 15 33 | - | - | - | - | 0.00 | 6.71 | - | - | - |
| Sonoma-West (Arnold) | 12/3/25 | 72.1 8.9 | 1522 | 35.3 0.2 | 2249 | 34.2 7.4 | 100 0 | 16 32 | 2.2 0.8 | 16.7 9.6 | 0811 | NNE | 31 | 0.00 | 4.40 | 0.074 0.013 | 256 17 | - |
| Sonoma Valley HS | 12/3/25 | 68.0 5.6 | 1514 | 38.2 3.3 | 2331 | 37.2 6.0 | 100 0 | 24 31 | 2.4 1.5 | 15.8 10.5 | 1016 | NNE | 30 | 0.01 | 4.63 | 0.069 0.019 | 222 21 | - |
| Sonoma East (Bundschu01) | 12/3/25 | 68.4 5.7 | 1505 | 35.1 2.4 | 0622 | 33.5 6.9 | 98 0 | 19 29 | 2.8 1.4 | 15.3 7.2 | 0919 | NE | 35 | 0.00 | 0.13 | 0.075 0.020 | 238 21 | - |
| Schellville (Sasaki) | 12/3/25 | 69.6 6.7 | 1353 | 36.1 2.6 | 2331 | 34.7 6.6 | 97 0 | 18 27 | 1.8 0.6 | 15.8 5.7 | 0812 | WNW | 289 | 0.00 | 4.40 | - | - | 0 0 |
| Sonoma-SE (Napoli) | 12/3/25 | 70.9 6.5 | 1458 | 36.6 2.5 | 2327 | 33.1 7.5 | 96 0 | 18 27 | 2.5 1.8 | 17.2 10.4 | 0936 | NW | 318 | 0.00 | 4.46 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 12/3/25 | 68.7 6.3 | 1330 | 35.5 2.7 | 2343 | 34.5 5.7 | 98 0 | 18 23 | 2.6 0.7 | 12.8 3.4 | 0958 | N | 2 | 0.00 | 4.89 | 0.071 0.013 | 243 21 | - |
| Carneros (Ranch 71) | 12/3/25 | 68.4 7.2 | 1348 | 41.4 0.0 | 0047 | 30.4 11.7 | 100 3 | 18 25 | 2.7 0.4 | 14.6 4.0 | 1212 | ENE | 63 | 0.00 | 4.47 | 0.073 0.020 | 231 17 | 0 0 |
| Carneros Upper (Ranch 81) | 12/3/25 | 67.3 5.2 | 1350 | 40.4 1.2 | 0112 | 28.7 1.6 | - | - | 3.6 0.9 | 18.3 8.9 | 1220 | N | 10 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 12/3/25 | 68.1 6.6 | 1334 | 36.1 2.5 | 0642 | 34.7 6.1 | 100 0 | 21 25 | 1.9 0.9 | 17.8 10.7 | 0754 | NW | 324 | 0.00 | 4.76 | 0.062 0.018 | 175 23 | - |
| Rohnert Park-West (Stony Point) | 12/3/25 | 68.3 4.7 | 1341 | 34.7 1.1 | 2359 | 38.0 5.1 | 100 0 | 24 31 | 2.2 1.3 | 12.9 2.7 | 1105 | N | 10 | 0.01 | 1.56 | - | - | - |
| Cartograph Wines Base | 12/3/25 | 66.6 5.1 | 1342 | 39.2 1.5 | 0355 | 37.0 7.5 | 100 0 | 26 37 | 2.8 0.8 | 12.6 0.7 | 1128 | NNW | 339 | 0.00 | 6.66 | 0.070 0.026 | 232 9 | - |
| Cartograph Wines Remote | 12/3/25 | 67.2 8.2 | 1139 | 35.8 0.7 | 0442 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 12/3/25 | 69.8 6.6 | 1409 | 32.6 1.3 | 0501 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 12/3/25 | 70.8 4.9 | 1457 | 35.8 3.1 | 2259 | 36.2 5.4 | 99 1 | 20 17 | 1.9 0.2 | 13.0 5.0 | 0746 | NNW | 340 | 0.00 | 0.10 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 12/3/25 | 69.8 6.9 | 1509 | 39.7 2.2 | 0305 | 32.0 10.6 | 100 0 | 19 24 | 2.4 1.1 | 12.1 1.9 | 0647 | NE | 55 | 0.01 | 5.79 | 0.061 0.011 | 219 13 | 0 0 |
| Petaluma (Ranch 10) | 12/3/25 | 73.6 7.6 | 1512 | 37.7 3.3 | 0633 | 37.2 4.7 | 100 0 | 18 25 | 1.2 0.4 | 8.9 0.2 | 0734 | NNE | 15 | 0.00 | 4.29 | 0.051 0.007 | 202 10 | 0 0 |
| Max | 73.6 | - | 41.6 | - | 38.0 | 100 | 26 | 3.6 | 21.4 | - | - | 0.01 | 6.82 | 0.082 | 256 | - | |
| Avg | - | - | - | - | 33.3 | - | - | 2.5 | - | - | - | - | - | - | - | - | |
| Min | 66.6 | - | 32.6 | - | 26.0 | 96 | 15 | 1.2 | 8.9 | - | - | 0.00 | 0.10 | 0.051 | 175 | - |