| 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) | 12/11/25 | 77.9 5.9 | 1437 | 51.8 0.7 | 1845 | 39.5 6.0 | 45 | 75 5 | 22 12 | 1.7 | 11.4 1.8 | 0104 | NNW | 336 | 0.00 | 9.81 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 12/11/25 | 72.4 3.0 | 1510 | 58.5 5.2 | 0416 | 32.6 7.9 | 31 | 48 23 | 21 2 | 7.8 | 21.7 1.5 | 0150 | N | 1 | 0.00 | 10.06 | 0.144 0.022 | 273 6 | 0 0 |
| Cloverdale-East (Ranch 83) | 12/11/25 | 61.8 4.9 | 1447 | 34.2 2.6 | 2129 | - | - | - | - | 1.1 | 8.8 0.3 | 1552 | S | 185 | 0.01 | 7.73 | 0.043 0.001 | 200 14 | 0 0 |
| Cloverdale-SE (Ranch 38) | 12/11/25 | 61.2 5.6 | 1418 | 36.4 0.1 | 0745 | 42.9 0.7 | 93 | 100 0 | 66 12 | 2.7 | 10.0 5.5 | 1551 | E | 89 | 0.01 | 8.33 | 0.031 0.004 | 158 1 | 0 0 |
| Geyserville-North (Hoffman) | 12/11/25 | 55.9 2.2 | 1515 | 36.0 2.5 | 2037 | 41.1 0.6 | 94 | 98 0 | 73 6 | 1.4 | 6.8 0.2 | 1508 | SSE | 149 | 0.00 | 0.00 | 0.028 0.009 | 148 43 | 0 0 |
| Geyserville (Ranch 3) | 12/11/25 | 55.2 2.9 | 1508 | 36.3 3.0 | 2100 | 41.8 0.6 | 97 | 100 0 | 73 10 | 1.4 | 7.3 0.1 | 1505 | ESE | 106 | 0.01 | 7.64 | 0.025 0.006 | 137 21 | 0 0 |
| Geyserville-East (Ranch 40) | 12/11/25 | 55.4 1.4 | 1510 | 36.1 0.1 | 0739 | 42.4 0.9 | 96 | 100 0 | 78 2 | 2.0 | 8.1 0.1 | 1544 | SSW | 193 | 0.02 | 7.98 | 0.032 0.010 | 185 36 | 0 0 |
| Geyserville-South (Nervo Station) | 12/11/25 | 55.6 3.5 | 1514 | 39.2 0.0 | 2354 | - | - | - | - | 1.0 | 5.4 0.0 | 1359 | SE | 135 | 0.01 | 6.16 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 12/11/25 | 61.2 2.5 | 1519 | 36.2 1.3 | 2024 | 41.4 0.4 | 95 | 100 0 | 60 4 | 0.9 | 4.4 0.4 | 0735 | N | 5 | 0.01 | 7.80 | 0.022 0.003 | 123 16 | 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) | 12/11/25 | 59.9 0.8 | 1435 | 34.7 1.8 | 2114 | 41.1 0.4 | 93 | 100 0 | 63 2 | 1.1 | 5.2 0.9 | 1320 | NW | 305 | 0.00 | 8.29 | 0.030 0.003 | 150 11 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 12/11/25 | 57.5 3.1 | 1513 | 35.8 1.8 | 2138 | 40.9 0.3 | 95 | 100 0 | 68 7 | 1.1 | 5.5 0.4 | 1228 | WNW | 299 | 0.00 | 8.33 | 0.025 0.002 | 133 7 | - |
| Knights Valley (Bavarian Lion) | 12/11/25 | 63.1 1.5 | 1358 | 33.5 2.6 | 2138 | 40.7 0.1 | 91 | 98 0 | 53 3 | 1.2 | 7.4 1.3 | 1622 | SSE | 161 | 0.01 | 8.56 | 0.038 0.003 | 193 10 | - |
| Upper Dry Creek Valley | 12/11/25 | 56.1 3.2 | 1358 | 36.0 2.2 | 2106 | 40.5 1.4 | 93 | 99 0 | 69 8 | 1.3 | 7.4 0.3 | 1410 | ESE | 117 | 0.01 | 8.17 | 0.037 0.016 | 196 71 | - |
| Lower Dry Creek Valley | 12/11/25 | 55.0 1.7 | 1520 | 36.1 2.5 | 2031 | 41.6 1.4 | 96 | 100 0 | 70 7 | 1.9 | 7.9 1.8 | 1411 | SSE | 153 | 0.00 | 8.47 | 0.032 0.013 | 168 57 | 0 0 |
| Max | 77.9 | - | 58.5 | - | 42.9 | 97 | 100 | 78 | 7.8 | 21.7 | - | - | 0.02 | 10.06 | 0.144 | 273 | - | |
| Avg | - | - | - | - | 40.5 | 85 | - | - | 1.9 | - | - | - | - | - | - | - | - | |
| Min | 55.0 | - | 33.5 | - | 32.6 | 31 | 48 | 21 | 0.9 | 4.4 | - | - | 0.00 | 0.00 | 0.022 | 123 | - |
| 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) | 12/11/25 | 56.9 1.3 | 1549 | 35.3 5.5 | 2213 | - | - | 100 0 | 67 3 | 0.4 | 6.5 0.6 | 1310 | 0.00 | 2.33 | - | - | 0 |
| Windsor-NW (Ranch 8) | 12/11/25 | 59.0 2.4 | 1544 | 38.7 2.2 | 2214 | 40.2 0.8 | 86 | 90 1 | 71 7 | 0.9 | 4.6 1.2 | 0823 | 0.01 | 8.75 | 0.027 0.004 | 147 27 | - |
| Windsor-East (Ranch 16) | 12/11/25 | 61.6 2.8 | 1548 | 34.3 5.4 | 2153 | 41.2 1.7 | 93 | 100 0 | 57 7 | 1.1 | 5.3 0.6 | 0157 | 0.01 | 6.50 | 0.031 0.003 | 162 16 | 0 |
| Mark West-North (Ranch 14) | 12/11/25 | 58.9 2.1 | 1520 | 35.8 5.1 | 2151 | 41.2 1.6 | 91 | 98 0 | 59 7 | 0.9 | 4.6 2.3 | 1402 | 0.00 | 7.49 | 0.002 0.000 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 12/11/25 | 57.2 1.9 | 1524 | 34.0 7.3 | 2112 | 41.4 2.1 | 95 | 100 0 | 66 6 | 1.1 | 6.3 1.5 | 1310 | 0.01 | 1.87 | 0.025 0.002 | 138 18 | 0 |
| Fulton-NW (Ranch 5) | 12/11/25 | 56.2 0.8 | 1549 | 34.2 6.8 | 2117 | -3.5 1.0 | 37 | 100 0 | 3 0 | 1.0 | 5.4 1.4 | 1602 | 0.00 | 7.58 | 0.031 0.002 | 127 8 | 0 |
| Windsor-South (Laughlin Rd) | 12/11/25 | 58.0 1.4 | 1503 | 38.8 2.5 | 2139 | -21.6 8.9 | 32 | 100 0 | 0 0 | - | - | - | 0.00 | 7.10 | - | - | - |
| Fulton-SE (Barnes Rd) | 12/11/25 | 57.3 0.1 | 1551 | 36.7 4.7 | 2141 | 41.8 1.3 | 90 | 98 0 | 67 2 | 1.1 | 6.4 0.3 | 1237 | 0.00 | 7.08 | - | - | - |
| Fulton-SW (Ranch 21) | 12/11/25 | 56.4 1.1 | 1514 | 36.7 4.2 | 2106 | -27.0 12.9 | 31 | 100 0 | 0 0 | 1.5 | 5.8 1.5 | 1606 | 0.01 | 7.45 | 0.040 0.003 | 176 8 | - |
| Santa Rosa-NW (Goldfields) | 12/11/25 | 58.2 0.2 | 1527 | 35.8 5.4 | 2111 | 42.4 1.3 | 93 | 100 0 | 65 0 | 1.5 | 6.5 0.9 | 1744 | 0.00 | 7.73 | 0.025 0.000 | 128 7 | - |
| Goldfields Remote | 12/11/25 | 56.7 11.0 | 1503 | 34.8 8.9 | 2117 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 12/11/25 | 56.9 1.6 | 1502 | 34.5 6.6 | 2121 | 42.8 1.5 | 97 | 100 0 | 73 3 | 1.0 | 6.3 0.2 | 1542 | 0.01 | 6.01 | - | - | - |
| River Rd South (Denner Ranch) | 12/11/25 | 56.7 0.1 | 1440 | 37.6 3.9 | 2109 | 42.7 1.4 | 96 | 100 0 | 69 0 | 2.1 | 7.5 1.5 | 1534 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 12/11/25 | 58.1 2.7 | 1525 | 37.3 4.0 | 2104 | 42.3 1.3 | 94 | 100 0 | 64 6 | 1.0 | 6.4 0.8 | 1446 | 0.00 | 8.11 | 0.003 0.000 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 12/11/25 | 58.0 3.1 | 1509 | 38.3 3.7 | 2109 | 42.6 1.4 | 94 | 100 0 | 65 6 | - | - | - | 0.00 | 7.15 | - | - | - |
| Guerneville Rd West (Balletto) | 12/11/25 | 56.6 2.2 | 1512 | 35.0 6.7 | 2106 | 42.4 1.8 | 96 | 100 0 | 73 4 | 1.4 | 5.7 1.4 | 1519 | 0.00 | 5.83 | - | - | - |
| Sanchietti Ranch | 12/11/25 | 55.8 2.2 | 1453 | 39.5 3.6 | 2021 | 44.0 1.3 | - | 100 0 | 79 5 | 2.2 | 7.5 0.9 | 1433 | 0.00 | 6.97 | - | - | - |
| Occidental Rd (Sebastopol) | 12/11/25 | 57.0 1.9 | 1406 | 37.2 4.8 | 1958 | 43.5 1.4 | 99 | 100 0 | 55 3 | 1.3 | 5.9 1.5 | 2204 | 0.00 | 5.80 | - | - | - |
| Lower Westside Rd (Ranch 12) | 12/11/25 | 56.5 0.1 | 1524 | 37.9 3.0 | 2014 | 42.1 1.5 | 96 | 100 0 | 67 3 | 0.9 | 6.1 1.7 | 0950 | 0.01 | 8.44 | - | - | 0 |
| Guerneville (Laughlin Rd) | 12/11/25 | 53.8 2.6 | 1410 | 40.9 0.2 | 1743 | 43.0 0.1 | 95 | 98 0 | 73 7 | 0.9 | 5.0 0.1 | 0457 | 0.01 | 9.28 | - | - | - |
| Korbel (Winery) | 12/11/25 | 52.4 1.1 | 1454 | 41.6 0.6 | 2359 | 43.2 0.2 | 96 | 100 0 | 78 2 | 1.5 | 6.1 0.6 | 1403 | 0.00 | 9.43 | - | - | - |
| Forestville (Shone Farms) | 12/11/25 | 57.3 0.7 | 1556 | 37.3 2.9 | 2115 | 42.0 1.3 | 94 | 98 0 | 70 3 | 1.2 | 5.0 2.2 | 0956 | 0.02 | 9.18 | 0.024 0.004 | 126 26 | 0 |
| Forestville-NE (Ranch 30) | 12/11/25 | 60.6 1.9 | 1539 | 38.4 2.7 | 2216 | 42.2 1.2 | 96 | 100 0 | 65 6 | 1.4 | 7.2 0.9 | 1141 | 0.01 | 8.62 | 0.026 0.004 | 144 22 | - |
| Green Valley Vineyard | 12/11/25 | 55.3 0.9 | 1555 | 37.0 4.5 | 2126 | 41.9 1.6 | 96 | 99 0 | 71 4 | 1.2 | 6.4 0.7 | 0446 | 0.01 | 9.92 | 0.014 0.006 | 72 40 | - |
| Green Valley (Sanchietti) | 12/11/25 | 57.3 0.2 | 1611 | 36.4 6.2 | 2042 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 12/11/25 | 56.8 1.6 | 1536 | 34.5 8.3 | 2114 | 42.1 2.5 | 97 | 100 0 | 75 2 | - | - | - | 0.01 | 8.59 | - | - | - |
| Graton-South (Mill Station Rd) | 12/11/25 | 56.4 2.3 | 1527 | 35.4 6.6 | 2051 | 41.9 2.0 | 94 | 100 0 | 68 5 | 0.3 | 4.2 1.1 | 1723 | 0.00 | 8.34 | - | - | 0 |
| Occidental (Horseshoe Bend) | 12/11/25 | 55.2 1.6 | 1533 | 39.1 1.7 | 2359 | 42.7 0.7 | - | 100 0 | 76 11 | - | - | - | 0.00 | 8.40 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 12/11/25 | 55.6 2.1 | 1533 | 34.6 8.1 | 2055 | 42.0 2.2 | 96 | 100 0 | 73 5 | 1.8 | 7.5 0.4 | 0130 | 0.00 | 6.98 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 12/11/25 | 54.6 1.9 | 1438 | 40.1 1.4 | 0719 | 42.7 0.9 | 97 | 100 0 | 77 5 | 0.3 | 5.3 0.2 | 1444 | 0.00 | 7.40 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 12/11/25 | 73.8 3.7 | 1321 | 61.3 6.4 | 0119 | 33.8 9.8 | 30 | 41 30 | 23 15 | 3.2 | 12.5 1.0 | 0829 | 0.00 | 13.08 | 0.092 0.013 | 246 5 | - |
| Max | 73.8 | - | 61.3 | - | 44.0 | 99 | 100 | 79 | 3.2 | 12.5 | - | 0.02 | 13.08 | 0.092 | 246 | - | |
| Avg | - | - | - | - | 35.6 | 85 | - | - | 1.2 | - | - | - | - | - | - | - | |
| Min | 52.4 | - | 34.0 | - | -27.0 | 30 | 41 | 0 | 0.3 | 4.2 | - | 0.00 | 1.87 | 0.002 | 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 | 12/11/25 | 59.9 4.8 | 1609 | 34.2 1.2 | 0718 | 40.7 0.4 | 98 0 | 60 10 | 0.9 0.2 | 3.8 0.1 | 2337 | N | 5 | 0.00 | 5.39 | 0.050 0.012 | 264 51 | - |
| Lower Bennett Valley | 12/11/25 | 59.1 5.9 | 1505 | 29.3 9.1 | 2242 | 39.7 2.4 | 100 0 | 69 8 | 1.0 0.6 | 5.3 1.7 | 1338 | ESE | 104 | 0.01 | 6.53 | 0.035 0.000 | 179 12 | 0 0 |
| Kenwood (Wildwood) | 12/11/25 | 51.8 5.8 | 1531 | 37.8 2.7 | 1846 | 41.9 1.1 | 100 0 | 79 21 | 1.8 0.0 | 6.9 0.4 | 1318 | WSW | 250 | 0.02 | 6.88 | 0.019 0.005 | 106 27 | - |
| Sonoma Valley (Bedrock) | 12/11/25 | 53.4 6.8 | 1416 | 38.1 2.0 | 1918 | 40.8 0.8 | 99 0 | 69 18 | - | - | - | - | 0.00 | 6.71 | - | - | - |
| Sonoma-West (Arnold) | 12/11/25 | 55.4 6.3 | 1434 | 38.0 3.9 | 1902 | 42.5 0.7 | 100 0 | 65 19 | 1.5 0.2 | 7.6 0.9 | 1615 | SE | 137 | 0.00 | 4.40 | 0.034 0.017 | 171 88 | - |
| Sonoma Valley HS | 12/11/25 | 53.3 4.6 | 1417 | 40.2 1.6 | 1844 | 43.0 0.8 | 100 0 | 77 14 | 1.5 0.1 | 6.0 0.9 | 1555 | SSE | 166 | 0.00 | 4.66 | 0.027 0.012 | 146 76 | - |
| Sonoma East (Bundschu01) | 12/11/25 | 55.5 6.5 | 1444 | 37.4 4.3 | 1846 | 41.6 1.2 | 97 0 | 66 19 | 2.1 0.4 | 7.5 0.9 | 1412 | SW | 230 | 0.00 | 0.13 | 0.031 0.014 | 161 84 | - |
| Schellville (Sasaki) | 12/8/25 | 48.2 0.5 | 1512 | 42.7 0.1 | 0740 | 42.6 0.2 | 95 1 | 83 0 | 1.2 0.0 | 9.8 2.3 | 1356 | NE | 55 | 0.00 | 4.40 | - | - | 0 0 |
| Sonoma-SE (Napoli) | 12/11/25 | 57.0 7.6 | 1339 | 37.2 4.2 | 1854 | 41.8 1.0 | 96 0 | 65 19 | 1.0 0.4 | 8.1 1.0 | 1359 | NW | 321 | 0.00 | 4.46 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 12/11/25 | 53.7 3.5 | 1353 | 37.7 4.4 | 1858 | 41.8 0.7 | 97 0 | 70 10 | 2.4 0.3 | 10.4 0.3 | 1541 | SE | 132 | 0.00 | 4.89 | 0.036 0.016 | 188 97 | - |
| Carneros (Ranch 71) | 12/11/25 | 52.9 4.0 | 1358 | 40.5 0.2 | 0735 | 42.3 0.6 | 100 0 | 74 15 | 2.1 0.7 | 7.6 0.9 | 1547 | E | 93 | 0.01 | 4.48 | 0.027 0.010 | 152 66 | 0 0 |
| Carneros Upper (Ranch 81) | 12/11/25 | 52.7 2.9 | 1400 | 40.8 0.1 | 0728 | 22.2 1.5 | - | - | 3.7 1.8 | 9.9 0.6 | 2102 | W | 269 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 12/11/25 | 53.1 1.4 | 1257 | 35.1 6.5 | 1931 | 41.8 1.4 | 100 0 | 72 5 | 1.3 0.2 | 8.6 1.3 | 1433 | SSE | 163 | 0.00 | 4.76 | 0.024 0.006 | 111 25 | - |
| Rohnert Park-West (Stony Point) | 12/11/25 | 53.8 2.4 | 1434 | 34.2 8.3 | 2012 | 42.7 1.2 | 100 0 | 76 7 | 4.2 0.6 | 13.4 0.1 | 0210 | ESE | 107 | 0.00 | 1.56 | - | - | - |
| Cartograph Wines Base | 12/11/25 | 53.5 2.7 | 1432 | 41.1 1.0 | 0532 | 43.2 0.6 | 100 0 | 81 7 | 4.1 0.3 | 11.9 1.4 | 0103 | NE | 48 | 0.00 | 6.66 | 0.031 0.006 | 179 23 | - |
| Cartograph Wines Remote | 12/11/25 | 52.1 1.4 | 1239 | 37.4 5.4 | 1954 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 12/11/25 | 54.7 2.5 | 1446 | 35.5 7.0 | 1949 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 12/11/25 | 52.8 3.6 | 1400 | 39.0 3.0 | 1947 | 41.8 0.9 | 98 0 | 71 10 | 6.6 0.7 | 14.7 1.0 | 0137 | SE | 125 | 0.00 | 0.10 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 12/11/25 | 50.1 5.4 | 1433 | 39.8 0.5 | 0721 | 41.7 0.2 | 100 0 | 81 19 | 5.0 0.1 | 12.2 1.1 | 1836 | NE | 42 | 0.01 | 5.81 | 0.026 0.013 | 161 83 | 0 0 |
| Petaluma (Ranch 10) | 12/11/25 | 54.2 5.0 | 1452 | 38.6 4.6 | 1959 | 41.8 1.1 | 97 1 | 67 16 | 2.9 0.3 | 7.4 0.1 | 1314 | SSW | 207 | 0.00 | 4.29 | 0.032 0.014 | 159 81 | 0 0 |
| Max | 59.9 | - | 41.1 | - | 43.2 | 100 | 81 | 6.6 | 14.7 | - | - | 0.02 | 6.88 | 0.050 | 264 | - | |
| Avg | - | - | - | - | 40.7 | - | - | 2.6 | - | - | - | - | - | - | - | - | |
| Min | 50.1 | - | 29.3 | - | 22.2 | 96 | 60 | 0.9 | 3.8 | - | - | 0.00 | 0.10 | 0.019 | 106 | - |