| 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 Lower (Cooley) | 1/17/26 | 73.8 5.1 | 1353 | 53.8 3.5 | 2342 | 35.1 4.4 | 36 | 50 11 | 19 7 | 1.6 | 7.2 2.8 | 0151 | NNW | 338 | 0.00 | 28.82 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 1/17/26 | 72.6 1.5 | 1555 | 58.3 0.1 | 2141 | 28.1 3.7 | 27 | 52 3 | 11 0 | 3.4 | 17.8 2.6 | 0041 | N | 0 | 0.00 | 29.56 | 0.092 0.029 | 274 37 | 0 0 |
| Cloverdale-East (Ranch 83) | 1/17/26 | 70.0 5.7 | 1547 | 38.1 0.7 | 2314 | 39.7 0.1 | - | - | - | 5.5 | 22.1 1.8 | 0919 | NNE | 20 | 0.00 | 25.01 | 0.074 0.011 | 233 25 | 0 0 |
| Cloverdale-SE (Ranch 38) | 1/17/26 | 73.2 4.8 | 1609 | 45.3 2.4 | 0733 | 40.2 0.0 | 57 | 75 3 | 34 10 | 6.4 | 19.8 6.4 | 0950 | NNW | 342 | 0.00 | 26.49 | 0.080 0.029 | 237 25 | 0 0 |
| Geyserville-North (Hoffman) | 1/17/26 | 71.7 0.4 | 1440 | 30.6 0.5 | 0727 | 40.4 0.0 | 79 | 97 0 | 38 2 | 1.7 | 6.9 0.4 | 1214 | W | 271 | 0.00 | 25.50 | 0.056 0.008 | 221 30 | 0 0 |
| Geyserville (Ranch 3) | 1/17/26 | 69.2 2.2 | 1426 | 31.4 0.2 | 0737 | 40.8 0.3 | 82 | 100 0 | 35 3 | 1.5 | 7.5 0.2 | 1202 | WNW | 299 | 0.00 | 25.44 | 0.051 0.010 | 208 44 | 0 0 |
| Geyserville-East (Ranch 40) | 1/17/26 | 73.3 1.6 | 1601 | 41.8 2.3 | 0742 | 43.6 0.3 | 66 | 87 7 | 41 2 | 2.3 | 9.5 3.5 | 0151 | NW | 311 | 0.00 | 25.86 | 0.061 0.016 | 248 32 | 0 0 |
| Geyserville-South (Nervo Station) | 1/17/26 | 68.2 1.7 | 1520 | 36.6 1.0 | 0744 | - | - | - | - | 0.8 | 6.1 0.7 | 1209 | NE | 44 | 0.00 | 19.37 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 1/17/26 | 72.7 4.2 | 1445 | 30.0 1.0 | 0653 | 39.5 0.2 | 82 | 100 0 | 32 2 | 0.8 | 5.7 1.1 | 0232 | ESE | 111 | 0.00 | 23.63 | 0.044 0.006 | 211 22 | 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) | 1/17/26 | 72.2 1.0 | 1522 | 29.4 0.9 | 0727 | 39.3 0.2 | 84 | 100 0 | 37 3 | 0.8 | 5.3 2.2 | 1207 | SSW | 201 | 0.00 | 22.79 | 0.048 0.011 | 212 24 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 1/17/26 | 69.1 2.5 | 1524 | 29.4 0.5 | 0747 | 39.2 0.2 | 83 | 100 0 | 40 3 | 0.8 | 4.6 2.9 | 1246 | NNW | 347 | 0.00 | 24.15 | 0.049 0.007 | 212 22 | - |
| Knights Valley (Bavarian Lion) | 1/17/26 | 73.6 2.6 | 1505 | 28.9 4.8 | 0712 | 38.0 1.0 | 82 | 98 1 | 30 2 | 1.7 | 7.3 2.6 | 1339 | NNW | 342 | 0.00 | 22.63 | 0.054 0.011 | 238 21 | - |
| Upper Dry Creek Valley | 1/17/26 | 69.4 1.4 | 1504 | 33.3 0.8 | 0727 | 41.9 0.5 | 82 | 98 0 | 41 3 | 1.0 | 6.1 1.2 | 1405 | SE | 143 | 0.00 | 27.46 | 0.059 0.011 | 257 22 | - |
| Lower Dry Creek Valley | 1/17/26 | 68.1 2.0 | 1519 | 31.3 0.4 | 0657 | 41.1 0.9 | 84 | 100 0 | 44 6 | 0.9 | 7.0 2.7 | 1336 | SE | 142 | 0.00 | 27.06 | 0.050 0.010 | 224 29 | 0 0 |
| Max | 73.8 | - | 58.3 | - | 43.6 | 84 | 100 | 44 | 6.4 | 22.1 | - | - | 0.00 | 29.56 | 0.092 | 274 | - | |
| Avg | - | - | - | - | 39.0 | 70 | - | - | 2.1 | - | - | - | - | - | - | - | - | |
| Min | 68.1 | - | 28.9 | - | 28.1 | 27 | 50 | 11 | 0.8 | 4.6 | - | - | 0.00 | 19.37 | 0.044 | 208 | - |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Healdsburg-South (Sodini) | 1/17/26 | 69.5 0.9 | 1517 | 31.7 0.3 | 0752 | - | - | 100 0 | 44 11 | 0.4 | 6.5 0.6 | 1312 | 0.00 | 19.43 | - | - | 0 |
| Windsor-NW (Ranch 8) | 1/17/26 | 70.5 0.5 | 1511 | 34.9 2.1 | 0721 | 42.9 0.1 | 79 | 90 0 | 52 13 | 0.3 | 4.7 1.5 | 0333 | 0.00 | 23.45 | 0.049 0.012 | 229 26 | - |
| Windsor-East (Ranch 16) | 1/17/26 | 68.4 2.0 | 1533 | 31.5 0.7 | 0723 | 41.6 1.2 | 86 | 100 0 | 47 9 | 0.7 | 5.7 1.1 | 1257 | 0.00 | 17.32 | 0.050 0.013 | 228 33 | 0 |
| Mark West-North (Ranch 14) | 1/17/26 | 66.9 3.8 | 1514 | 32.0 0.4 | 0642 | 41.1 1.0 | 83 | 98 0 | 48 12 | 0.7 | 5.7 1.4 | 1235 | 0.00 | 18.96 | 0.007 0.003 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 1/17/26 | 66.6 3.5 | 1549 | 30.1 0.3 | 0721 | 39.8 0.8 | 86 | 100 0 | 48 9 | 0.7 | 5.6 0.5 | 1316 | 0.00 | 15.30 | 0.051 0.012 | 244 29 | 0 |
| Fulton-NW (Ranch 5) | 1/17/26 | 64.2 3.8 | 1524 | 30.0 0.6 | 0733 | 19.8 6.3 | 59 | 100 0 | 3 0 | 0.9 | 7.0 0.0 | 1254 | 0.00 | 18.91 | 0.050 0.010 | 237 18 | 0 |
| Windsor-South (Laughlin Rd) | 1/17/26 | 68.2 1.2 | 1527 | 31.5 0.5 | 0744 | 17.1 5.4 | 61 | 100 0 | 0 0 | - | - | - | 0.01 | 18.82 | - | - | - |
| Fulton-SE (Barnes Rd) | 1/17/26 | 65.8 3.3 | 1521 | 31.2 0.5 | 0718 | 41.4 0.7 | 85 | 98 0 | 52 14 | 0.6 | 6.4 2.4 | 1301 | 0.00 | 18.16 | - | - | - |
| Fulton-SW (Ranch 21) | 1/17/26 | 63.5 3.8 | 1515 | 30.9 0.4 | 0745 | -7.7 2.2 | 42 | 100 0 | 0 0 | 1.4 | 6.3 1.3 | 1301 | 0.00 | 18.43 | 0.056 0.014 | 258 34 | - |
| Santa Rosa-NW (Goldfields) | 1/17/26 | 65.5 4.3 | 1439 | 31.2 0.0 | 0735 | 41.8 1.0 | 87 | 100 0 | 53 12 | 1.2 | 7.5 0.6 | 1256 | 0.00 | 19.41 | 0.048 0.012 | 220 25 | - |
| Goldfields Remote | 1/17/26 | 64.8 3.2 | 1509 | 30.9 0.3 | 0723 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 1/17/26 | 64.6 3.8 | 1531 | 30.7 0.1 | 0727 | 41.9 0.5 | 92 | 100 0 | 60 10 | 1.0 | 5.4 1.6 | 1315 | 0.00 | 16.66 | - | - | - |
| River Rd South (Denner Ranch) | 1/17/26 | 68.6 1.2 | 1434 | 31.0 0.1 | 0718 | 42.4 0.3 | 89 | 100 0 | 47 3 | 1.3 | 7.2 2.4 | 1257 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 1/17/26 | 66.0 4.0 | 1510 | 31.8 0.2 | 0744 | 41.5 0.4 | 87 | 100 0 | 51 9 | 0.7 | 5.7 0.7 | 1250 | 0.03 | 14.47 | 0.005 0.002 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 1/17/26 | 64.6 2.7 | 1518 | 33.0 0.7 | 0653 | 42.4 0.3 | 88 | 100 0 | 55 9 | - | - | - | 0.00 | 17.49 | - | - | - |
| Guerneville Rd West (Balletto) | 1/17/26 | 64.3 4.3 | 1513 | 31.8 0.4 | 0730 | 41.7 0.4 | 90 | 100 0 | 61 9 | 1.1 | 6.2 2.4 | 1609 | 0.00 | 17.41 | - | - | - |
| Sanchietti Ranch | 1/17/26 | 63.9 4.3 | 1515 | 33.8 0.9 | 0749 | 43.4 0.2 | - | 100 0 | 71 18 | 1.3 | 6.4 2.3 | 1343 | 0.00 | 18.32 | - | - | - |
| Occidental Rd (Sebastopol) | 1/17/26 | 64.9 3.0 | 1509 | 31.6 0.5 | 0737 | 45.0 1.0 | 100 | 100 0 | 100 17 | 0.9 | 4.6 2.2 | 1317 | 0.00 | 6.73 | - | - | - |
| Lower Westside Rd (Ranch 12) | 1/17/26 | 70.6 3.0 | 1442 | 33.1 1.8 | 0741 | 41.6 0.3 | 80 | 100 0 | 42 10 | 0.3 | 4.2 1.4 | 1324 | 0.00 | 22.83 | - | - | 0 |
| Guerneville (Laughlin Rd) | 1/17/26 | 66.8 0.3 | 1418 | 37.3 0.6 | 0758 | 44.9 0.5 | 91 | 99 0 | 56 3 | 0.4 | 4.1 0.4 | 1504 | 0.01 | 30.89 | - | - | - |
| Korbel (Winery) | 1/17/26 | 66.3 2.5 | 1436 | 39.1 0.4 | 0815 | 46.1 0.6 | 92 | 100 0 | 56 7 | 0.9 | 8.2 4.0 | 1423 | 0.01 | 28.42 | - | - | - |
| Forestville (Shone Farms) | 1/17/26 | 65.7 3.6 | 1548 | 33.6 1.0 | 0721 | 42.8 0.5 | 85 | 98 0 | 53 5 | 1.0 | 7.0 0.2 | 2250 | 0.00 | 24.16 | 0.052 0.010 | 234 26 | 0 |
| Forestville-NE (Ranch 30) | 1/17/26 | 67.0 2.9 | 1510 | 36.1 1.3 | 0744 | 44.2 1.0 | 90 | 100 0 | 56 5 | 0.9 | 8.2 0.9 | 1340 | 0.01 | 22.48 | 0.051 0.012 | 236 22 | - |
| Green Valley Vineyard | 1/17/26 | 66.0 4.4 | 1615 | 36.7 0.9 | 0658 | 43.8 1.0 | 86 | 99 0 | 43 1 | 1.6 | 5.3 0.2 | 1145 | 0.01 | 27.22 | 0.026 0.016 | 83 79 | - |
| Green Valley (Sanchietti) | 1/17/26 | 69.2 2.5 | 1441 | 32.6 1.0 | 0718 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 1/17/26 | 65.9 4.7 | 1451 | 31.2 0.9 | 0730 | 40.6 0.6 | 89 | 100 0 | 52 3 | - | - | - | 0.00 | 24.46 | - | - | - |
| Graton-South (Mill Station Rd) | 1/17/26 | 66.0 6.0 | 1503 | 31.0 1.2 | 0649 | 40.3 0.9 | 86 | 100 0 | 46 5 | 0.0 | 3.6 1.5 | 1054 | 0.00 | 21.65 | - | - | 0 |
| Occidental (Horseshoe Bend) | 1/17/26 | 68.0 1.1 | 1447 | 47.8 4.4 | 0732 | 44.2 1.1 | - | 86 8 | 37 0 | - | - | - | 0.02 | 15.71 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 1/17/26 | 65.1 5.0 | 1445 | 30.6 1.8 | 0719 | 40.9 0.9 | 88 | 100 0 | 51 3 | 0.8 | 5.9 0.0 | 1138 | 0.00 | 7.08 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 1/17/26 | 65.0 4.5 | 1453 | 42.3 2.4 | 0748 | 46.3 0.9 | 82 | 97 0 | 53 3 | 0.4 | 6.2 1.6 | 0111 | 0.00 | 21.46 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 1/17/26 | 74.3 0.6 | 1504 | 57.5 0.1 | 0700 | 33.1 1.3 | 33 | 60 1 | 17 4 | 2.2 | 7.9 2.3 | 0840 | 0.00 | 37.55 | 0.075 0.014 | 251 32 | - |
| Max | 74.3 | - | 57.5 | - | 46.3 | 100 | 100 | 100 | 2.2 | 8.2 | - | 0.03 | 37.55 | 0.075 | 258 | - | |
| Avg | - | - | - | - | 38.7 | 81 | - | - | 0.9 | - | - | - | - | - | - | - | |
| Min | 63.5 | - | 30.0 | - | -7.7 | 33 | 60 | 0 | 0.0 | 3.6 | - | 0.00 | 6.73 | 0.005 | 0 | - |
| 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 | 1/17/26 | 66.9 2.0 | 1108 | 45.4 5.2 | 0646 | 38.5 2.0 | 78 5 | 23 11 | 2.0 0.2 | 8.4 2.9 | 1858 | NE | 38 | 0.00 | 5.41 | 0.064 0.017 | 267 43 | - |
| Lower Bennett Valley | 1/17/26 | 65.3 3.7 | 1552 | 29.0 1.8 | 0700 | 40.4 0.7 | 100 0 | 56 12 | 1.5 0.2 | 8.9 1.6 | 1301 | NW | 320 | 0.00 | 17.51 | 0.054 0.010 | 238 31 | 0 0 |
| Kenwood (Wildwood) | 1/17/26 | 62.6 6.3 | 1440 | 34.1 2.3 | 0744 | 42.3 0.1 | 100 0 | 57 16 | 2.2 0.4 | 9.6 0.2 | 1306 | S | 189 | 0.00 | 21.09 | 0.050 0.011 | 219 17 | - |
| Sonoma Valley (Bedrock) | 1/17/26 | 62.8 4.2 | 1506 | 33.4 0.2 | 0525 | 40.7 0.5 | 98 1 | 57 19 | - | - | - | - | 0.00 | 17.00 | - | - | - |
| Sonoma-West (Arnold) | 1/17/26 | 65.2 3.3 | 1550 | 32.8 0.5 | 0712 | 41.4 1.0 | 100 0 | 54 15 | 1.3 0.4 | 7.3 1.4 | 1237 | S | 186 | 0.00 | 14.29 | 0.059 0.020 | 267 46 | - |
| Sonoma Valley HS | 1/17/26 | 62.6 4.8 | 1428 | 32.6 1.0 | 0728 | 43.3 0.9 | 100 0 | 65 16 | 0.8 0.0 | 5.9 0.5 | 1344 | SSW | 198 | 0.01 | 5.08 | 0.050 0.012 | 238 35 | - |
| Sonoma East (Bundschu01) | 1/17/26 | 62.6 4.2 | 1253 | 31.4 1.4 | 0716 | 41.3 0.9 | 98 0 | 60 17 | 1.4 0.1 | 7.9 0.0 | 1322 | S | 170 | 0.00 | 11.65 | 0.052 0.017 | 242 46 | - |
| Schellville (Sasaki) | 1/17/26 | 63.5 4.6 | 1436 | 30.8 1.0 | 0727 | 41.0 1.3 | 98 1 | 57 17 | 1.2 0.2 | 9.5 0.7 | 1235 | NNE | 23 | 0.00 | 0.00 | - | - | 0 0 |
| Sonoma-SE (Napoli) | 1/17/26 | 64.0 4.9 | 1436 | 32.9 0.6 | 0733 | 41.8 1.2 | 97 0 | 58 16 | 0.7 0.1 | 8.1 0.3 | 1318 | SE | 133 | 0.00 | 10.95 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 1/17/26 | 62.8 4.1 | 1521 | 31.2 0.8 | 0739 | 41.3 0.8 | 98 0 | 58 18 | 2.5 0.5 | 11.8 2.4 | 1246 | SE | 142 | 0.00 | 13.95 | 0.054 0.019 | 256 47 | - |
| Carneros (Ranch 71) | 1/17/26 | 63.4 2.8 | 1433 | 45.9 0.2 | 0728 | 46.3 1.2 | 90 1 | 58 14 | 1.8 0.4 | 10.0 0.9 | 1724 | E | 89 | 0.00 | 11.98 | 0.053 0.014 | 244 38 | 0 0 |
| Carneros Upper (Ranch 81) | 1/17/26 | 64.8 1.5 | 1215 | 45.6 2.6 | 0719 | 45.9 1.8 | - | - | 3.0 0.3 | 10.5 0.6 | 1318 | SSE | 147 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 1/17/26 | 63.6 7.0 | 1249 | 34.7 1.3 | 0727 | 30.5 2.6 | 100 0 | 0 0 | 1.4 0.1 | 9.0 1.1 | 1317 | SSE | 164 | 0.00 | 12.79 | 0.039 0.008 | 159 19 | - |
| Rohnert Park-West (Stony Point) | 1/17/26 | 62.4 6.1 | 1534 | 32.4 1.7 | 0156 | 41.2 1.3 | 99 0 | 65 17 | 0.7 0.1 | 6.6 0.2 | 1317 | ENE | 75 | 0.00 | 1.58 | - | - | - |
| Cartograph Wines Base | 1/17/26 | 62.3 4.9 | 1513 | 39.0 2.7 | 0752 | 46.8 0.1 | 100 0 | 69 15 | 1.4 0.1 | 6.9 1.3 | 1234 | ESE | 119 | 0.00 | 17.42 | 0.047 0.013 | 240 26 | - |
| Cartograph Wines Remote | 1/17/26 | 61.4 3.4 | 1320 | 32.4 1.0 | 0551 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 1/17/26 | 65.0 4.7 | 1507 | 30.0 0.2 | 0653 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 1/17/26 | 62.4 3.6 | 1548 | 31.6 0.7 | 0720 | 40.9 1.1 | 98 0 | 58 14 | 2.4 0.4 | 9.5 0.3 | 1118 | SE | 136 | 0.00 | 15.11 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 1/17/26 | 61.6 2.6 | 1456 | 45.6 3.4 | 0729 | 45.6 2.9 | 95 19 | 55 12 | 3.7 1.5 | 11.7 2.9 | 1015 | NE | 36 | 0.00 | 14.80 | 0.053 0.011 | 241 25 | 0 0 |
| Petaluma (Ranch 10) | 1/17/26 | 65.0 3.0 | 1502 | 33.7 2.4 | 0716 | 42.6 3.7 | 100 0 | 57 14 | 1.0 0.3 | 6.4 0.8 | 1215 | SE | 141 | 0.00 | 11.56 | 0.040 0.014 | 182 39 | 0 0 |
| Max | 66.9 | - | 45.9 | - | 46.8 | 100 | 69 | 3.7 | 11.8 | - | - | 0.01 | 21.09 | 0.064 | 267 | - | |
| Avg | - | - | - | - | 41.8 | - | - | 1.7 | - | - | - | - | - | - | - | - | |
| Min | 61.4 | - | 29.0 | - | 30.5 | 78 | 0 | 0.7 | 5.9 | - | - | 0.00 | 0.00 | 0.039 | 159 | - |