| 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) | 1/12/26 | 68.8 1.7 | 1419 | 47.6 1.3 | 0347 | 35.9 4.0 | 49 | 71 9 | 31 1 | 1.5 | 7.9 2.1 | 0041 | NNW | 338 | 0.00 | 28.82 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 1/12/26 | 66.9 4.2 | 1436 | 47.5 0.2 | 0058 | 30.6 2.6 | 39 | 60 2 | 19 4 | 5.0 | 18.8 0.4 | 0001 | NW | 326 | 0.00 | 29.56 | 0.096 0.005 | 294 32 | 0 0 |
| Cloverdale-East (Ranch 83) | 1/12/26 | 71.0 7.1 | 1557 | 32.8 3.8 | 2349 | 36.2 0.6 | - | - | - | 4.9 | 19.0 3.3 | 0453 | NNW | 339 | 0.00 | 25.01 | 0.067 0.001 | 246 22 | 0 0 |
| Cloverdale-SE (Ranch 38) | 1/12/26 | 70.0 5.4 | 1519 | 42.3 0.0 | 2338 | 38.8 1.4 | 62 | 91 13 | 34 3 | 4.6 | 18.6 3.7 | 0037 | NW | 326 | 0.00 | 26.49 | 0.066 0.009 | 248 23 | 0 0 |
| Geyserville-North (Hoffman) | 1/12/26 | 65.1 1.6 | 1453 | 28.8 1.9 | 0735 | 37.3 0.1 | 81 | 97 0 | 39 1 | 1.4 | 6.2 2.9 | 1038 | NW | 322 | 0.00 | 25.50 | 0.056 0.003 | 239 20 | 0 0 |
| Geyserville (Ranch 3) | 1/12/26 | 64.4 0.4 | 1446 | 29.8 2.0 | 0732 | 37.8 0.2 | 84 | 100 0 | 32 1 | 1.4 | 8.1 2.3 | 1105 | NW | 319 | 0.00 | 25.44 | 0.053 0.003 | 240 20 | 0 0 |
| Geyserville-East (Ranch 40) | 1/12/26 | 67.1 3.4 | 1204 | 39.4 0.2 | 0744 | 41.0 1.5 | 69 | 88 1 | 42 7 | 2.8 | 11.2 3.7 | 1344 | SSW | 202 | 0.00 | 25.86 | 0.067 0.009 | 265 20 | 0 0 |
| Geyserville-South (Nervo Station) | 1/12/26 | 65.0 2.3 | 1511 | 34.8 0.6 | 0712 | - | - | - | - | 1.0 | 6.1 1.7 | 1240 | E | 98 | 0.00 | 19.34 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 1/12/26 | 69.5 0.1 | 1544 | 28.7 1.8 | 0703 | 35.9 0.0 | 81 | 100 0 | 33 6 | 0.6 | 4.6 0.2 | 1254 | S | 190 | 0.00 | 23.62 | 0.045 0.004 | 220 21 | 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) | 1/12/26 | 68.3 0.4 | 1425 | 28.5 2.3 | 0647 | 36.3 0.0 | 83 | 100 0 | 32 5 | 0.9 | 6.3 1.1 | 1606 | S | 183 | 0.00 | 22.79 | 0.049 0.008 | 223 26 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 1/12/26 | 65.0 0.4 | 1511 | 28.6 2.0 | 0656 | 36.4 0.0 | 83 | 100 0 | 40 5 | 1.0 | 5.0 0.7 | 1539 | SW | 233 | 0.00 | 24.15 | 0.048 0.008 | 220 24 | - |
| Knights Valley (Bavarian Lion) | 1/12/26 | 68.0 1.7 | 1413 | 27.7 1.6 | 0745 | 35.0 0.8 | 82 | 98 0 | 34 6 | 1.6 | 6.8 1.9 | 1131 | NW | 314 | 0.00 | 22.62 | 0.052 0.005 | 244 22 | - |
| Upper Dry Creek Valley | 1/12/26 | 65.5 0.2 | 1506 | 31.8 1.1 | 0630 | 38.5 0.3 | 83 | 98 0 | 38 2 | 1.0 | 7.3 2.3 | 1352 | SE | 125 | 0.00 | 27.46 | 0.061 0.010 | 265 29 | - |
| Lower Dry Creek Valley | 1/12/26 | 66.1 2.0 | 1544 | 29.7 2.1 | 0722 | 38.0 0.1 | 84 | 100 0 | 39 6 | 1.5 | 8.0 2.0 | 1312 | SSE | 162 | 0.00 | 27.06 | 0.055 0.009 | 241 32 | 0 0 |
| Max | 71.0 | - | 47.6 | - | 41.0 | 84 | 100 | 42 | 5.0 | 19.0 | - | - | 0.00 | 29.56 | 0.096 | 294 | - | |
| Avg | - | - | - | - | 36.7 | 73 | - | - | 2.1 | - | - | - | - | - | - | - | - | |
| Min | 64.4 | - | 27.7 | - | 30.6 | 39 | 60 | 19 | 0.6 | 4.6 | - | - | 0.00 | 19.34 | 0.045 | 220 | - |
| 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) | 1/12/26 | 66.1 0.7 | 1536 | 30.1 2.0 | 0751 | - | - | 100 0 | 39 1 | 0.6 | 6.5 1.1 | 1341 | 0.00 | 19.43 | - | - | 0 |
| Windsor-NW (Ranch 8) | 1/12/26 | 68.1 0.2 | 1527 | 32.0 3.5 | 0747 | 39.3 0.1 | 79 | 92 1 | 45 2 | 0.8 | 7.1 1.9 | 1426 | 0.00 | 23.45 | 0.053 0.006 | 242 20 | - |
| Windsor-East (Ranch 16) | 1/12/26 | 66.8 1.3 | 1533 | 29.2 2.3 | 0722 | 37.4 0.0 | 83 | 100 0 | 36 3 | 0.7 | 5.5 1.2 | 1436 | 0.00 | 17.32 | 0.054 0.006 | 249 22 | 0 |
| Mark West-North (Ranch 14) | 1/12/26 | 65.4 1.0 | 1502 | 30.2 1.8 | 0710 | 37.1 0.4 | 80 | 98 0 | 38 0 | 0.5 | 5.3 1.2 | 1609 | 0.00 | 18.96 | 0.007 0.002 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 1/12/26 | 63.6 1.3 | 1535 | 29.0 1.8 | 0753 | 36.5 0.1 | 84 | 100 0 | 43 3 | 0.7 | 5.3 0.6 | 1430 | 0.00 | 15.29 | 0.053 0.007 | 258 26 | 0 |
| Fulton-NW (Ranch 5) | 1/12/26 | 62.3 0.1 | 1520 | 29.0 1.9 | 0724 | 32.3 8.0 | 78 | 100 0 | 3 0 | 0.8 | 5.8 1.1 | 1134 | 0.00 | 18.91 | 0.051 0.008 | 243 22 | 0 |
| Windsor-South (Laughlin Rd) | 1/12/26 | 65.8 0.6 | 1501 | 30.6 1.3 | 0714 | 14.8 10.8 | 60 | 100 0 | 0 0 | - | - | - | 0.00 | 18.80 | - | - | - |
| Fulton-SE (Barnes Rd) | 1/12/26 | 63.6 1.5 | 1509 | 29.5 2.2 | 0731 | 37.7 0.0 | 83 | 98 0 | 40 5 | 0.9 | 6.1 0.7 | 1518 | 0.00 | 18.16 | - | - | - |
| Fulton-SW (Ranch 21) | 1/12/26 | 62.3 0.5 | 1512 | 29.0 1.9 | 0654 | -4.9 4.3 | 45 | 100 0 | 0 0 | 1.2 | 6.6 2.6 | 1624 | 0.00 | 18.43 | 0.060 0.011 | 279 29 | - |
| Santa Rosa-NW (Goldfields) | 1/12/26 | 65.0 0.2 | 1459 | 30.2 1.3 | 0725 | 37.9 0.7 | 83 | 100 0 | 40 1 | 1.1 | 6.9 1.8 | 1622 | 0.00 | 19.41 | 0.050 0.007 | 235 26 | - |
| Goldfields Remote | 1/12/26 | 63.1 0.6 | 1444 | 30.0 1.5 | 0702 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 1/12/26 | 63.2 0.8 | 1531 | 29.9 0.9 | 0733 | 38.7 0.6 | 89 | 100 0 | 49 0 | 0.8 | 5.3 1.4 | 1130 | 0.01 | 16.65 | - | - | - |
| River Rd South (Denner Ranch) | 1/12/26 | 64.1 2.0 | 1448 | 30.6 0.9 | 0632 | 38.9 0.1 | 86 | 100 0 | 42 1 | 1.3 | 7.9 2.0 | 1648 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 1/12/26 | 64.5 0.0 | 1509 | 31.0 0.7 | 0757 | 38.1 0.8 | 84 | 100 0 | 41 2 | 0.6 | 5.8 0.1 | 1403 | 0.05 | 14.26 | 0.007 0.002 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 1/12/26 | 62.6 0.8 | 1504 | 32.5 0.6 | 0644 | 39.2 0.4 | 86 | 100 0 | 41 4 | - | - | - | 0.01 | 17.47 | - | - | - |
| Guerneville Rd West (Balletto) | 1/12/26 | 63.5 1.0 | 1521 | 31.4 0.3 | 0654 | 38.4 1.0 | 87 | 100 0 | 50 2 | 0.9 | 6.3 0.7 | 1616 | 0.01 | 17.41 | - | - | - |
| Sanchietti Ranch | 1/12/26 | 62.6 1.4 | 1529 | 32.4 0.3 | 0732 | 40.5 1.1 | - | 100 0 | 53 1 | 1.0 | 6.8 1.2 | 1551 | 0.00 | 18.31 | - | - | - |
| Occidental Rd (Sebastopol) | 1/12/26 | 63.4 1.9 | 1457 | 31.4 0.2 | 0729 | 42.7 0.4 | 99 | 100 0 | 79 3 | 0.8 | 5.9 1.1 | 1605 | 0.01 | 6.71 | - | - | - |
| Lower Westside Rd (Ranch 12) | 1/12/26 | 68.8 1.0 | 1424 | 32.2 1.5 | 0726 | 38.1 0.1 | 78 | 100 0 | 36 4 | 0.3 | 4.4 0.6 | 1541 | 0.00 | 22.83 | - | - | 0 |
| Guerneville (Laughlin Rd) | 1/12/26 | 61.2 1.9 | 1338 | 36.3 1.6 | 0754 | 42.3 1.7 | 93 | 99 0 | 63 7 | 0.6 | 3.6 0.3 | 1343 | 0.01 | 30.83 | - | - | - |
| Korbel (Winery) | 1/12/26 | 62.0 1.0 | 1419 | 37.4 0.7 | 0825 | 43.1 1.0 | 93 | 100 0 | 55 5 | 0.8 | 7.2 3.9 | 1346 | 0.00 | 28.36 | - | - | - |
| Forestville (Shone Farms) | 1/12/26 | 65.6 2.6 | 1517 | 33.3 0.5 | 0629 | 39.7 0.5 | 84 | 98 0 | 44 0 | 1.1 | 6.1 1.8 | 1327 | 0.01 | 24.13 | 0.054 0.008 | 243 26 | 0 |
| Forestville-NE (Ranch 30) | 1/12/26 | 67.9 2.5 | 1450 | 35.2 0.2 | 0636 | 41.4 0.5 | 89 | 100 0 | 46 5 | 0.9 | 6.4 1.8 | 1335 | 0.01 | 22.43 | 0.054 0.009 | 249 30 | - |
| Green Valley Vineyard | 1/12/26 | 63.7 1.5 | 1612 | 34.5 0.1 | 0646 | 40.5 0.4 | 85 | 99 0 | 43 0 | 1.6 | 5.3 0.7 | 0422 | 0.01 | 27.19 | 0.011 0.002 | 16 4 | - |
| Green Valley (Sanchietti) | 1/12/26 | 66.1 0.8 | 1529 | 30.7 1.4 | 0654 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 1/12/26 | 64.8 1.6 | 1519 | 29.4 1.7 | 0737 | 37.7 0.4 | 88 | 100 0 | 50 3 | - | - | - | 0.00 | 24.46 | - | - | - |
| Graton-South (Mill Station Rd) | 1/12/26 | 66.3 1.9 | 1521 | 30.0 0.4 | 0728 | 37.7 0.4 | 85 | 100 1 | 44 0 | 0.1 | 3.9 0.4 | 1252 | 0.00 | 21.63 | - | - | 0 |
| Occidental (Horseshoe Bend) | 1/12/26 | 64.0 0.6 | 1518 | 42.5 0.8 | 0735 | 41.5 0.9 | - | 89 2 | 43 1 | - | - | - | 0.02 | 15.60 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 1/12/26 | 64.5 1.6 | 1528 | 29.1 2.2 | 0634 | 38.3 0.1 | 88 | 100 0 | 50 2 | 0.7 | 5.7 0.2 | 1406 | 0.00 | 7.07 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 1/12/26 | 62.7 0.9 | 1530 | 39.4 0.6 | 0747 | 43.9 1.9 | 84 | 99 1 | 54 1 | 0.6 | 5.7 1.4 | 1402 | 0.00 | 21.46 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 1/12/26 | 66.7 5.0 | 1323 | 49.9 0.7 | 0123 | 29.2 2.5 | 36 | 69 0 | 14 9 | 2.1 | 8.5 1.3 | 2110 | 0.00 | 37.55 | 0.070 0.016 | 266 44 | - |
| Max | 68.8 | - | 49.9 | - | 43.9 | 99 | 100 | 79 | 2.1 | 8.5 | - | 0.05 | 37.55 | 0.070 | 279 | - | |
| Avg | - | - | - | - | 36.4 | 81 | - | - | 0.9 | - | - | - | - | - | - | - | |
| Min | 61.2 | - | 29.0 | - | -4.9 | 36 | 69 | 0 | 0.1 | 3.6 | - | 0.00 | 6.71 | 0.007 | 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 | 1/12/26 | 62.8 1.1 | 1500 | 41.1 0.3 | 0706 | 39.1 3.6 | 88 9 | 41 7 | 2.1 0.3 | 6.8 1.8 | 1530 | SW | 221 | 0.00 | 5.41 | 0.067 0.011 | 296 34 | - |
| Lower Bennett Valley | 1/12/26 | 64.7 1.4 | 1439 | 28.6 0.8 | 0725 | 37.4 1.2 | 100 0 | 49 17 | 1.3 0.3 | 10.2 2.9 | 1206 | WNW | 296 | 0.00 | 17.51 | 0.055 0.005 | 256 24 | 0 0 |
| Kenwood (Wildwood) | 1/12/26 | 62.1 1.4 | 1402 | 31.6 0.2 | 0643 | 38.7 1.3 | 100 0 | 50 12 | 2.4 0.2 | 9.1 3.5 | 1131 | SW | 233 | 0.00 | 21.09 | 0.053 0.003 | 231 9 | - |
| Sonoma Valley (Bedrock) | 1/12/26 | 60.3 0.7 | 1422 | 30.7 1.2 | 0738 | 37.4 1.3 | 98 0 | 49 10 | - | - | - | - | 0.01 | 9.24 | - | - | - |
| Sonoma-West (Arnold) | 1/12/26 | 63.4 0.7 | 1447 | 31.6 2.3 | 0631 | 38.7 1.0 | 100 0 | 50 10 | 1.6 0.2 | 7.4 1.5 | 1436 | SW | 214 | 0.00 | 14.29 | 0.068 0.008 | 300 28 | - |
| Sonoma Valley HS | 1/12/26 | 61.8 0.5 | 1538 | 31.1 1.1 | 0624 | 40.1 1.2 | 100 0 | 59 9 | 0.8 0.2 | 6.9 1.3 | 1445 | S | 175 | 0.01 | 5.03 | 0.054 0.004 | 261 17 | - |
| Sonoma East (Bundschu01) | 1/12/26 | 62.7 0.7 | 1522 | 29.5 1.9 | 0702 | 37.8 1.6 | 98 0 | 50 9 | 1.5 0.4 | 9.6 3.5 | 1442 | S | 182 | 0.00 | 11.63 | 0.063 0.008 | 283 24 | - |
| Schellville (Sasaki) | 1/12/26 | 63.4 0.6 | 1535 | 32.0 1.6 | 0759 | 41.3 2.4 | 97 0 | 49 9 | 1.4 0.3 | 7.8 1.7 | 1310 | SE | 146 | 0.00 | 0.00 | - | - | 0 0 |
| Sonoma-SE (Napoli) | 1/12/26 | 64.5 0.3 | 1541 | 30.8 1.3 | 0721 | 38.2 1.6 | 97 1 | 46 7 | 0.8 0.3 | 8.8 2.7 | 1431 | SE | 146 | 0.00 | 10.94 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 1/12/26 | 63.2 0.4 | 1332 | 30.4 1.0 | 0721 | 38.0 1.4 | 98 0 | 46 6 | 2.2 0.7 | 9.5 3.6 | 1430 | ESE | 108 | 0.00 | 13.94 | 0.066 0.010 | 291 28 | - |
| Carneros (Ranch 71) | 1/12/26 | 61.6 0.4 | 1555 | 42.0 1.3 | 0709 | 41.4 3.1 | 85 2 | 49 9 | 1.7 0.6 | 8.1 2.1 | 1256 | E | 99 | 0.00 | 11.98 | 0.059 0.007 | 272 25 | 0 0 |
| Carneros Upper (Ranch 81) | 1/12/26 | 63.7 2.7 | 1444 | 42.3 2.3 | 0739 | 41.0 4.0 | - | - | 2.6 0.8 | 12.2 4.5 | 1437 | ESE | 115 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 1/12/26 | 62.1 0.4 | 1325 | 32.6 1.3 | 0652 | 31.9 3.0 | 100 0 | 0 0 | 1.3 0.3 | 9.1 2.4 | 1410 | SSE | 160 | 0.00 | 12.79 | 0.041 0.003 | 165 4 | - |
| Rohnert Park-West (Stony Point) | 1/12/26 | 62.0 2.5 | 1449 | 31.5 0.1 | 0709 | 38.1 1.2 | 99 0 | 60 19 | 0.7 0.3 | 7.2 2.8 | 1545 | S | 173 | 0.00 | 1.57 | - | - | - |
| Cartograph Wines Base | 1/12/26 | 61.3 0.0 | 1449 | 36.1 1.4 | 0751 | 43.4 1.5 | 100 0 | 63 14 | 1.3 0.3 | 8.3 2.7 | 1155 | SE | 128 | 0.00 | 17.42 | 0.050 0.005 | 253 17 | - |
| Cartograph Wines Remote | 1/12/26 | 58.9 1.0 | 1312 | 31.7 0.8 | 0749 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 1/12/26 | 63.2 1.0 | 1514 | 29.3 0.5 | 0333 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 1/12/26 | 61.9 0.6 | 1334 | 29.4 2.9 | 0712 | 37.4 0.8 | 98 0 | 53 13 | 1.6 0.3 | 10.4 3.9 | 1436 | SE | 137 | 0.00 | 15.11 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 1/12/26 | 59.8 0.1 | 1402 | 44.0 0.4 | 0651 | 40.8 3.5 | 80 2 | 54 10 | 2.8 0.6 | 10.1 2.6 | 1102 | ESE | 109 | 0.00 | 14.80 | 0.055 0.006 | 256 27 | 0 0 |
| Petaluma (Ranch 10) | 1/12/26 | 62.9 2.4 | 1337 | 29.1 1.7 | 0737 | 36.9 0.8 | 100 0 | 49 11 | 0.7 0.3 | 7.1 3.2 | 1501 | SSE | 162 | 0.00 | 11.56 | 0.047 0.004 | 212 18 | 0 0 |
| Max | 64.7 | - | 44.0 | - | 43.4 | 100 | 63 | 2.8 | 12.2 | - | - | 0.01 | 21.09 | 0.068 | 300 | - | |
| Avg | - | - | - | - | 38.8 | - | - | 1.6 | - | - | - | - | - | - | - | - | |
| Min | 58.9 | - | 28.6 | - | 31.9 | 80 | 0 | 0.7 | 6.8 | - | - | 0.00 | 0.00 | 0.041 | 165 | - |