| 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) | 12/5/25 | 66.5 0.8 | 1408 | 47.1 0.1 | 0601 | 43.6 9.6 | 71 | 94 21 | 50 21 | 1.7 | 7.3 0.6 | 2246 | NNW | 330 | 0.00 | 9.81 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 12/5/25 | 64.3 0.4 | 1354 | 45.8 2.6 | 0708 | 43.3 12.5 | 73 | 100 42 | 52 30 | 6.0 | 18.6 3.1 | 2036 | NW | 317 | 0.00 | 10.06 | 0.066 0.007 | 260 4 | 0 0 |
| Cloverdale-East (Ranch 83) | 12/5/25 | 64.0 2.1 | 1418 | 31.6 3.3 | 0634 | 21.2 14.5 | - | - | - | 1.1 | 9.0 5.6 | 1602 | S | 187 | 0.00 | 7.68 | 0.049 0.008 | 221 6 | 0 0 |
| Cloverdale-SE (Ranch 38) | 12/5/25 | 62.7 1.6 | 1408 | 40.4 0.2 | 0649 | 43.3 6.9 | 82 | 94 4 | 59 21 | 3.0 | 12.8 1.3 | 1548 | NNE | 28 | 0.00 | 8.28 | 0.051 0.014 | 220 7 | 0 0 |
| Geyserville-North (Hoffman) | 12/5/25 | 58.8 2.7 | 1437 | 31.7 0.4 | 0634 | 38.8 1.8 | 87 | 97 1 | 63 18 | 1.5 | 8.7 1.8 | 1508 | SE | 128 | 0.00 | 0.00 | 0.045 0.006 | 206 16 | 0 0 |
| Geyserville (Ranch 3) | 12/5/25 | 59.0 2.1 | 1443 | 32.9 0.5 | 0647 | 39.9 1.5 | 90 | 100 0 | 59 16 | 1.4 | 8.6 0.7 | 1355 | ESE | 102 | 0.00 | 7.60 | 0.043 0.006 | 206 14 | 0 0 |
| Geyserville-East (Ranch 40) | 12/5/25 | 57.9 2.7 | 1419 | 40.6 0.5 | 0817 | 43.2 4.8 | 86 | 97 5 | 68 24 | 3.3 | 12.4 1.8 | 1523 | S | 186 | 0.00 | 7.91 | 0.046 0.012 | 234 9 | 0 0 |
| Geyserville-South (Nervo Station) | 12/5/25 | 58.2 3.0 | 1451 | 35.3 0.8 | 0808 | - | - | - | - | 1.6 | 8.4 1.7 | 1524 | SSW | 197 | 0.00 | 6.07 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 12/5/25 | 61.0 3.4 | 1320 | 32.4 1.4 | 0524 | 39.1 2.4 | 88 | 100 0 | 53 14 | 0.8 | 6.8 2.2 | 1326 | SW | 220 | 0.00 | 7.77 | 0.037 0.003 | 178 14 | 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) | 12/5/25 | 59.4 3.6 | 1511 | 31.4 1.1 | 0712 | 38.9 1.8 | 88 | 100 0 | 57 15 | 1.1 | 6.9 0.7 | 1431 | SSW | 195 | 0.00 | 8.29 | 0.041 0.004 | 195 8 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 12/5/25 | 58.4 2.8 | 1401 | 30.4 0.4 | 0659 | 38.6 2.1 | 88 | 100 0 | 59 15 | 1.3 | 7.8 1.6 | 1237 | SSE | 165 | 0.00 | 8.32 | 0.038 0.003 | 172 2 | - |
| Knights Valley (Bavarian Lion) | 12/5/25 | 63.3 0.5 | 1320 | 31.0 0.8 | 0619 | 38.3 2.7 | 86 | 98 0 | 47 10 | 1.4 | 6.8 0.1 | 1159 | NW | 324 | 0.00 | 8.54 | 0.045 0.004 | 216 9 | - |
| Upper Dry Creek Valley | 12/5/25 | 58.4 3.7 | 1429 | 32.9 0.4 | 0713 | 39.8 1.8 | 87 | 98 1 | 60 18 | 1.6 | 10.2 1.3 | 1353 | SSE | 155 | 0.00 | 8.14 | 0.049 0.006 | 237 8 | - |
| Lower Dry Creek Valley | 12/5/25 | 56.6 4.4 | 1452 | 33.4 1.8 | 0643 | 39.9 1.3 | 93 | 100 0 | 62 15 | 2.2 | 10.4 1.3 | 1321 | SE | 128 | 0.00 | 8.44 | 0.036 0.014 | 189 30 | 0 0 |
| Max | 66.5 | - | 47.1 | - | 43.6 | 93 | 100 | 68 | 6.0 | 18.6 | - | - | 0.00 | 10.06 | 0.066 | 260 | - | |
| Avg | - | - | - | - | 39.1 | 85 | - | - | 2.0 | - | - | - | - | - | - | - | - | |
| Min | 56.6 | - | 30.4 | - | 21.2 | 71 | 94 | 47 | 0.8 | 6.8 | - | - | 0.00 | 0.00 | 0.036 | 172 | - |
| 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) | 12/5/25 | 56.3 5.3 | 1450 | 34.5 1.1 | 0651 | - | - | 100 0 | 64 18 | 0.7 | 8.2 0.6 | 1228 | 0.00 | 2.30 | - | - | 0 |
| Windsor-NW (Ranch 8) | 12/5/25 | 57.3 5.7 | 1520 | 36.0 0.1 | 0728 | 39.3 0.5 | 84 | 89 4 | 70 19 | 1.0 | 6.5 0.1 | 1247 | 0.00 | 8.70 | 0.029 0.018 | 156 72 | - |
| Windsor-East (Ranch 16) | 12/5/25 | 56.7 4.7 | 1442 | 31.5 0.1 | 0716 | 39.0 1.5 | 91 | 100 0 | 63 13 | 1.0 | 7.0 0.3 | 1308 | 0.00 | 6.49 | 0.037 0.009 | 195 26 | 0 |
| Mark West-North (Ranch 14) | 12/5/25 | 56.0 5.3 | 1527 | 33.6 0.6 | 0639 | 39.2 1.0 | 89 | 98 2 | 61 13 | 0.8 | 6.0 0.4 | 1452 | 0.00 | 7.48 | 0.005 0.004 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 12/5/25 | 56.0 4.9 | 1531 | 34.1 3.2 | 0331 | 39.0 1.1 | 92 | 100 0 | 65 16 | 0.9 | 7.3 0.0 | 1515 | 0.00 | 1.83 | 0.026 0.019 | 141 90 | 0 |
| Fulton-NW (Ranch 5) | 12/5/25 | 54.6 4.3 | 1550 | 32.7 1.1 | 0654 | 12.8 25.7 | 59 | 100 0 | 3 0 | 1.1 | 7.7 0.5 | 1512 | 0.00 | 7.57 | 0.031 0.013 | 144 75 | 0 |
| Windsor-South (Laughlin Rd) | 12/5/25 | 55.3 6.1 | 1424 | 35.0 2.0 | 0705 | 1.9 36.6 | 56 | 100 0 | 0 0 | - | - | - | 0.00 | 7.07 | - | - | - |
| Fulton-SE (Barnes Rd) | 12/5/25 | 55.1 4.8 | 1516 | 32.8 0.4 | 0720 | 38.9 0.6 | 88 | 97 2 | 64 9 | 1.2 | 7.5 0.1 | 1256 | 0.00 | 7.08 | - | - | - |
| Fulton-SW (Ranch 21) | 12/5/25 | 53.9 4.9 | 1511 | 33.2 0.5 | 0623 | -16.9 53.6 | 41 | 100 0 | 0 0 | 1.6 | 8.3 0.1 | 1515 | 0.00 | 7.42 | 0.038 0.013 | 171 79 | - |
| Santa Rosa-NW (Goldfields) | 12/5/25 | 55.6 5.4 | 1545 | 34.2 2.0 | 0615 | 39.8 0.8 | 92 | 100 0 | 66 13 | 1.6 | 7.9 0.3 | 1452 | 0.00 | 7.72 | 0.024 0.019 | 121 86 | - |
| Goldfields Remote | 12/5/25 | 41.4 17.7 | 2331 | 36.0 4.6 | 2234 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 12/5/25 | 55.0 4.1 | 1509 | 34.6 3.4 | 0652 | 40.2 0.4 | 96 | 100 0 | 72 10 | 1.0 | 7.1 0.3 | 1313 | 0.00 | 5.99 | - | - | - |
| River Rd South (Denner Ranch) | 12/5/25 | 54.8 4.7 | 1518 | 34.6 1.5 | 0323 | 40.1 0.4 | 95 | 100 0 | 71 16 | 2.0 | 8.6 0.9 | 1348 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 12/5/25 | 56.2 3.9 | 1551 | 35.6 3.0 | 0700 | 39.7 0.8 | 92 | 100 0 | 64 11 | 0.8 | 8.4 0.8 | 1345 | 0.00 | 8.11 | 0.003 0.004 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 12/5/25 | 54.5 4.7 | 1405 | 36.1 3.3 | 0306 | 40.2 0.8 | 93 | 100 0 | 69 15 | - | - | - | 0.00 | 7.13 | - | - | - |
| Guerneville Rd West (Balletto) | 12/5/25 | 54.9 4.2 | 1515 | 34.6 3.9 | 2235 | 39.4 0.9 | 93 | 100 0 | 72 11 | 1.3 | 8.4 0.5 | 1717 | 0.00 | 5.82 | - | - | - |
| Sanchietti Ranch | 12/5/25 | 54.9 3.7 | 1459 | 35.9 3.7 | 0236 | 41.1 0.7 | - | 100 0 | 76 9 | 1.7 | 8.2 0.7 | 1526 | 0.00 | 6.97 | - | - | - |
| Occidental Rd (Sebastopol) | 12/5/25 | 54.8 4.7 | 1502 | 34.5 3.3 | 0313 | 41.3 1.3 | 100 | 100 0 | 100 2 | 1.1 | 7.5 1.1 | 1444 | 0.00 | 5.79 | - | - | - |
| Lower Westside Rd (Ranch 12) | 12/5/25 | 56.9 5.6 | 1515 | 35.0 2.3 | 0556 | 39.9 1.5 | 92 | 100 0 | 63 20 | 0.7 | 6.3 0.3 | 1303 | 0.00 | 8.40 | - | - | 0 |
| Guerneville (Laughlin Rd) | 12/5/25 | 61.5 1.1 | 1339 | 38.0 5.4 | 0703 | 42.4 2.8 | 92 | 98 0 | 55 5 | 0.5 | 6.1 2.3 | 1327 | 0.01 | 9.27 | - | - | - |
| Korbel (Winery) | 12/5/25 | 58.0 3.0 | 1437 | 38.7 2.4 | 0805 | 42.4 1.4 | 92 | 100 0 | 62 16 | 0.4 | 8.6 1.4 | 1249 | 0.00 | 9.43 | - | - | - |
| Forestville (Shone Farms) | 12/5/25 | 56.2 4.1 | 1516 | 34.8 0.7 | 0618 | 40.2 0.6 | 91 | 98 1 | 69 19 | 1.2 | 7.2 1.5 | 1458 | 0.00 | 9.10 | 0.029 0.019 | 144 84 | 0 |
| Forestville-NE (Ranch 30) | 12/5/25 | 57.2 4.4 | 1403 | 35.4 3.4 | 0358 | 40.2 0.0 | 95 | 100 0 | 70 18 | 1.3 | 8.6 0.4 | 1508 | 0.00 | 8.56 | 0.027 0.021 | 148 94 | - |
| Green Valley Vineyard | 12/5/25 | 56.5 4.3 | 1503 | 35.2 0.3 | 0801 | 40.5 0.8 | 93 | 99 1 | 64 19 | 1.1 | 5.7 0.4 | 1231 | 0.00 | 9.85 | 0.011 0.024 | 42 111 | - |
| Green Valley (Sanchietti) | 12/5/25 | 58.4 4.3 | 1453 | 33.9 3.2 | 0658 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 12/5/25 | 58.1 2.8 | 1506 | 32.5 1.1 | 0708 | 39.4 0.4 | 95 | 100 0 | 69 15 | - | - | - | 0.00 | 8.55 | - | - | - |
| Graton-South (Mill Station Rd) | 12/5/25 | 56.8 3.6 | 1439 | 32.8 2.7 | 0331 | 39.6 1.9 | 93 | 100 1 | 66 13 | 0.2 | 4.5 0.2 | 1517 | 0.00 | 8.33 | - | - | 0 |
| Occidental (Horseshoe Bend) | 12/5/25 | 56.7 3.8 | 1448 | 41.4 1.6 | 0819 | 43.1 4.4 | - | 97 8 | 69 27 | - | - | - | 0.00 | 8.39 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 12/5/25 | 57.5 1.1 | 1540 | 33.4 1.9 | 0507 | 40.0 1.3 | 94 | 99 0 | 71 13 | 0.4 | 5.5 1.4 | 1238 | 0.01 | 6.97 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 12/5/25 | 56.2 1.5 | 1449 | 39.5 0.1 | 0440 | 42.8 1.7 | 95 | 100 1 | 71 9 | 0.5 | 5.4 0.6 | 1521 | 0.00 | 7.40 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 12/5/25 | 58.6 2.3 | 1457 | 48.4 1.1 | 2231 | 45.3 13.9 | 77 | 96 27 | 52 29 | 2.2 | 11.1 2.8 | 2336 | 0.00 | 13.08 | 0.049 0.011 | 232 1 | - |
| Max | 61.5 | - | 48.4 | - | 45.3 | 100 | 100 | 100 | 2.2 | 11.1 | - | 0.01 | 13.08 | 0.049 | 232 | - | |
| Avg | - | - | - | - | 36.1 | 87 | - | - | 1.0 | - | - | - | - | - | - | - | |
| Min | 41.4 | - | 31.5 | - | -16.9 | 41 | 89 | 0 | 0.2 | 4.5 | - | 0.00 | 1.83 | 0.003 | 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 | 12/5/25 | 55.6 3.7 | 1425 | 39.1 1.0 | 0643 | 40.8 4.3 | 98 9 | 63 19 | 1.5 0.3 | 6.1 0.6 | 1332 | SE | 124 | 0.00 | 5.39 | 0.052 0.004 | 268 4 | - |
| Lower Bennett Valley | 12/5/25 | 58.4 2.9 | 1327 | 30.2 1.3 | 0647 | 38.6 2.1 | 100 0 | 60 13 | 1.5 0.3 | 9.8 2.7 | 1215 | N | 354 | 0.00 | 6.50 | 0.038 0.011 | 206 32 | 0 0 |
| Kenwood (Wildwood) | 12/5/25 | 51.5 6.5 | 1429 | 32.3 0.3 | 0625 | 38.8 1.0 | 100 0 | 74 19 | 1.3 0.4 | 7.7 0.8 | 1323 | WSW | 252 | 0.00 | 6.82 | 0.023 0.013 | 120 48 | - |
| Sonoma Valley (Bedrock) | 12/5/25 | 52.8 1.7 | 1454 | 31.0 0.8 | 0658 | 36.7 0.7 | 98 1 | 68 10 | - | - | - | - | 0.00 | 6.71 | - | - | - |
| Sonoma-West (Arnold) | 12/5/25 | 53.9 2.6 | 1436 | 31.8 0.2 | 0606 | 37.8 0.5 | 100 0 | 66 9 | 1.1 0.2 | 7.7 1.4 | 0042 | N | 351 | 0.00 | 4.40 | 0.031 0.021 | 157 88 | - |
| Sonoma Valley HS | 12/5/25 | 52.6 2.4 | 1432 | 33.9 1.0 | 0554 | 39.8 0.0 | 100 0 | 74 8 | 0.8 0.3 | 6.3 2.9 | 1535 | SE | 139 | 0.01 | 4.64 | 0.025 0.016 | 134 76 | - |
| Sonoma East (Bundschu01) | 12/5/25 | 52.3 3.3 | 1456 | 32.4 1.0 | 0358 | 37.5 0.2 | 97 0 | 68 8 | 1.5 0.3 | 8.8 1.1 | 1513 | SSE | 155 | 0.00 | 0.13 | 0.028 0.017 | 147 80 | - |
| Schellville (Sasaki) | 12/5/25 | 53.2 2.1 | 1349 | 32.8 1.0 | 0507 | 37.8 0.4 | 96 1 | 68 7 | 0.8 0.5 | 9.8 3.4 | 1522 | NNE | 22 | 0.00 | 4.40 | - | - | 0 0 |
| Sonoma-SE (Napoli) | 12/5/25 | 54.5 2.5 | 1345 | 33.8 1.5 | 0541 | 38.1 0.3 | 96 0 | 64 6 | 0.6 1.0 | 8.8 1.0 | 1506 | S | 170 | 0.00 | 4.46 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 12/5/25 | 52.7 1.6 | 1346 | 33.4 2.4 | 0505 | 38.6 1.5 | 97 0 | 67 5 | 2.4 0.1 | 9.5 2.3 | 1023 | SE | 138 | 0.00 | 4.89 | 0.035 0.012 | 184 57 | - |
| Carneros (Ranch 71) | 12/5/25 | 50.8 2.8 | 1256 | 39.0 0.8 | 0251 | 40.5 0.1 | 100 0 | 71 17 | 2.9 0.6 | 10.3 0.7 | 1529 | E | 98 | 0.00 | 4.47 | 0.028 0.014 | 158 66 | 0 0 |
| Carneros Upper (Ranch 81) | 12/5/25 | 51.6 3.9 | 1436 | 38.8 0.8 | 0602 | 15.2 21.8 | - | - | 3.5 0.1 | 11.9 1.5 | 1517 | SE | 128 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 12/5/25 | 51.1 3.7 | 1248 | 35.2 1.8 | 0333 | 39.3 0.8 | 100 0 | 72 10 | 1.3 0.3 | 9.4 1.8 | 1458 | S | 172 | 0.00 | 4.76 | 0.025 0.012 | 121 51 | - |
| Rohnert Park-West (Stony Point) | 12/5/25 | 54.0 3.2 | 1514 | 34.2 4.2 | 0301 | 39.3 1.6 | 99 1 | 71 7 | 1.5 0.1 | 9.0 0.9 | 0925 | ESE | 109 | 0.00 | 1.56 | - | - | - |
| Cartograph Wines Base | 12/5/25 | 53.4 3.2 | 1450 | 35.7 4.1 | 0716 | 42.0 0.3 | 100 1 | 78 11 | 2.2 0.1 | 10.2 0.7 | 1708 | ESE | 122 | 0.00 | 6.66 | 0.027 0.014 | 155 63 | - |
| Cartograph Wines Remote | 12/5/25 | 50.7 4.9 | 1401 | 35.0 2.4 | 0341 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 12/5/25 | 54.8 3.0 | 1426 | 32.3 2.8 | 0323 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 12/5/25 | 52.4 3.9 | 1445 | 32.2 1.8 | 0636 | 38.4 1.2 | 98 1 | 71 12 | 2.9 0.1 | 12.4 1.4 | 0803 | SSE | 147 | 0.00 | 0.10 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 12/5/25 | 51.4 1.8 | 1439 | 38.6 0.8 | 0746 | 41.0 1.2 | 100 0 | 73 23 | 4.8 0.6 | 11.0 2.2 | 2146 | NNE | 29 | 0.00 | 5.79 | 0.025 0.019 | 148 77 | 0 0 |
| Petaluma (Ranch 10) | 12/5/25 | 53.2 5.5 | 1350 | 35.2 2.2 | 0220 | 39.8 1.7 | 100 0 | 68 13 | 1.1 0.0 | 6.9 0.4 | 1418 | S | 185 | 0.00 | 4.29 | 0.025 0.018 | 125 76 | 0 0 |
| Max | 58.4 | - | 39.1 | - | 42.0 | 100 | 78 | 4.8 | 12.4 | - | - | 0.01 | 6.82 | 0.052 | 268 | - | |
| Avg | - | - | - | - | 37.8 | - | - | 1.9 | - | - | - | - | - | - | - | - | |
| Min | 50.7 | - | 30.2 | - | 15.2 | 96 | 60 | 0.6 | 6.1 | - | - | 0.00 | 0.10 | 0.023 | 120 | - |