| 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) | 12/16/25 | 59.4 8.5 | 1529 | 47.0 2.6 | 0927 | 53.6 9.3 | 97 | 100 7 | 86 62 | 1.4 | 17.4 5.9 | 0454 | NW | 313 | 0.07 | 9.88 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 12/16/25 | 58.2 6.0 | 1440 | 49.7 0.8 | 2129 | 55.2 15.3 | 100 | 100 0 | 91 66 | 5.2 | 25.4 1.3 | 0506 | NNW | 336 | 0.06 | 10.12 | 0.013 0.056 | 56 142 | 0 0 |
| Cloverdale-East (Ranch 83) | 12/16/25 | 55.1 8.0 | 1512 | 39.8 2.9 | 0106 | -16.8 13.4 | - | - | - | 0.7 | 9.3 2.6 | 0829 | S | 191 | 0.08 | 7.84 | 0.022 0.018 | 58 119 | 0 0 |
| Cloverdale-SE (Ranch 38) | 12/16/25 | 55.2 8.0 | 1529 | 43.6 7.1 | 0248 | 48.4 4.5 | 98 | 100 0 | 91 32 | 2.5 | 13.7 0.4 | 0817 | NNW | 348 | 0.07 | 8.43 | 0.012 0.022 | 51 99 | 0 0 |
| Geyserville-North (Hoffman) | 12/16/25 | 56.1 0.0 | 1523 | 40.4 1.6 | 0121 | 46.7 4.8 | 93 | 97 0 | 80 8 | 1.3 | 7.7 0.3 | 0822 | SE | 134 | 0.00 | 0.00 | 0.015 0.015 | 53 91 | 0 0 |
| Geyserville (Ranch 3) | 12/16/25 | 55.6 0.4 | 1527 | 40.7 1.5 | 0011 | 47.4 4.6 | 96 | 100 0 | 80 10 | 1.3 | 8.5 0.6 | 0813 | ESE | 121 | 0.05 | 7.74 | 0.016 0.012 | 63 83 | 0 0 |
| Geyserville-East (Ranch 40) | 12/16/25 | 54.3 1.9 | 1446 | 41.9 5.4 | 0820 | 47.6 4.7 | 98 | 100 0 | 92 15 | 2.8 | 12.9 3.5 | 0817 | S | 176 | 0.05 | 8.07 | 0.014 0.014 | 61 107 | 0 0 |
| Geyserville-South (Nervo Station) | 12/16/25 | 55.6 0.3 | 1516 | 41.7 2.7 | 0336 | - | - | - | - | 0.8 | 7.8 1.0 | 0807 | SSE | 153 | 0.04 | 6.25 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 12/16/25 | 55.4 1.7 | 1547 | 39.2 0.1 | 0033 | 46.8 4.4 | 94 | 100 0 | 77 11 | 0.6 | 5.0 0.0 | 0923 | WNW | 287 | 0.08 | 7.92 | 0.016 0.007 | 65 56 | 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) | 12/16/25 | 56.7 1.1 | 1438 | 38.7 0.5 | 0041 | 47.1 5.3 | 94 | 100 0 | 76 11 | 1.0 | 6.7 0.7 | 0813 | SE | 142 | 0.06 | 8.36 | 0.017 0.009 | 66 63 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 12/16/25 | 55.6 0.7 | 1547 | 38.4 1.2 | 0144 | 46.2 4.7 | 95 | 100 0 | 78 6 | 1.3 | 7.8 0.7 | 0829 | S | 187 | 0.06 | 8.42 | 0.016 0.007 | 64 51 | - |
| Knights Valley (Bavarian Lion) | 12/16/25 | 57.0 4.0 | 1604 | 38.2 2.1 | 0126 | 45.9 4.8 | 92 | 98 1 | 73 15 | 2.0 | 12.1 4.4 | 0714 | SE | 135 | 0.07 | 8.66 | 0.022 0.013 | 92 91 | - |
| Upper Dry Creek Valley | 12/16/25 | 56.2 0.8 | 1524 | 41.7 4.0 | 0346 | 46.9 4.8 | 93 | 98 1 | 80 11 | 1.2 | 9.6 0.9 | 0808 | ESE | 111 | 0.04 | 8.22 | 0.016 0.016 | 64 106 | - |
| Lower Dry Creek Valley | 12/16/25 | 56.2 1.5 | 1528 | 41.2 1.8 | 0346 | 47.1 4.6 | 95 | 100 0 | 77 7 | 1.7 | 9.0 0.4 | 0550 | SSE | 153 | 0.03 | 8.53 | 0.017 0.010 | 69 72 | 0 0 |
| Max | 59.4 | - | 49.7 | - | 55.2 | 100 | 100 | 92 | 5.2 | 25.4 | - | - | 0.08 | 10.12 | 0.022 | 92 | - | |
| Avg | - | - | - | - | 43.2 | 95 | - | - | 1.7 | - | - | - | - | - | - | - | - | |
| Min | 54.3 | - | 38.2 | - | -16.8 | 92 | 97 | 73 | 0.6 | 5.0 | - | - | 0.00 | 0.00 | 0.012 | 51 | - |
| 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) | 12/16/25 | 57.1 4.0 | 1531 | 40.7 1.0 | 0153 | - | - | 100 0 | 75 2 | 0.3 | 7.7 1.7 | 0602 | 0.02 | 2.38 | - | - | 0 |
| Windsor-NW (Ranch 8) | 12/16/25 | 58.5 4.9 | 1433 | 41.1 1.5 | 0137 | 44.1 3.6 | 85 | 88 4 | 78 4 | 0.6 | 11.0 4.5 | 0609 | 0.03 | 8.82 | 0.022 0.002 | 96 11 | - |
| Windsor-East (Ranch 16) | 12/16/25 | 58.0 4.1 | 1513 | 38.9 1.4 | 0103 | 46.2 4.6 | 92 | 100 0 | 73 2 | 0.9 | 8.6 1.4 | 0619 | 0.04 | 6.54 | 0.021 0.006 | 87 49 | 0 |
| Mark West-North (Ranch 14) | 12/16/25 | 57.8 4.1 | 1455 | 40.1 0.9 | 0133 | 45.4 3.6 | 90 | 98 1 | 69 1 | 0.6 | 6.0 0.1 | 0614 | 0.04 | 7.53 | 0.002 0.000 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 12/16/25 | 57.9 5.5 | 1449 | 38.6 0.4 | 0009 | 45.7 3.7 | 92 | 100 0 | 73 6 | 1.1 | 6.8 1.0 | 0611 | 0.04 | 1.93 | 0.022 0.003 | 94 7 | 0 |
| Fulton-NW (Ranch 5) | 12/16/25 | 57.4 5.5 | 1514 | 39.2 0.3 | 0013 | 13.2 13.7 | 51 | 100 0 | 3 0 | 1.2 | 7.5 2.0 | 0619 | 0.02 | 7.62 | 0.026 0.007 | 105 21 | 0 |
| Windsor-South (Laughlin Rd) | 12/16/25 | 60.2 7.8 | 1438 | 39.5 0.4 | 0104 | 10.4 35.0 | 55 | 100 0 | 0 0 | - | - | - | 0.03 | 7.16 | - | - | - |
| Fulton-SE (Barnes Rd) | 12/16/25 | 57.7 4.7 | 1606 | 40.0 0.6 | 0112 | 45.8 4.0 | 90 | 97 1 | 74 4 | 1.3 | 7.4 0.4 | 1305 | 0.03 | 7.12 | - | - | - |
| Fulton-SW (Ranch 21) | 12/16/25 | 57.4 6.5 | 1447 | 39.4 0.1 | 0108 | -10.6 22.4 | 42 | 100 0 | 0 0 | 1.7 | 7.0 0.6 | 1315 | 0.02 | 7.50 | 0.034 0.001 | 119 7 | - |
| Santa Rosa-NW (Goldfields) | 12/16/25 | 59.5 7.1 | 1450 | 39.5 0.1 | 0054 | 45.9 3.6 | 92 | 100 0 | 70 7 | 1.7 | 8.0 2.0 | 1801 | 0.03 | 7.79 | 0.023 0.003 | 94 5 | - |
| Goldfields Remote | 12/16/25 | 57.7 6.2 | 1529 | 39.2 0.4 | 0051 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 12/16/25 | 57.1 6.1 | 1523 | 39.0 0.4 | 0109 | 46.9 4.3 | 97 | 100 0 | 83 8 | 1.0 | 6.1 1.1 | 1824 | 0.03 | 6.06 | - | - | - |
| River Rd South (Denner Ranch) | 12/16/25 | 59.4 7.8 | 1446 | 39.0 0.4 | 0117 | 46.2 3.4 | 94 | 100 0 | 71 15 | 2.2 | 8.8 2.6 | 1825 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 12/16/25 | 57.7 5.8 | 1441 | 39.6 0.3 | 0116 | 45.4 3.3 | 91 | 100 0 | 73 7 | 0.9 | 7.0 1.8 | 0618 | 0.00 | 8.12 | 0.003 0.002 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 12/16/25 | 58.7 6.1 | 1523 | 39.9 0.0 | 0116 | 45.7 3.3 | 91 | 99 1 | 69 8 | - | - | - | 0.02 | 7.19 | - | - | - |
| Guerneville Rd West (Balletto) | 12/16/25 | 57.7 6.0 | 1524 | 38.8 0.2 | 0057 | 46.0 3.9 | 93 | 100 0 | 77 8 | 1.4 | 7.9 2.4 | 0759 | 0.02 | 5.88 | - | - | - |
| Sanchietti Ranch | 12/16/25 | 58.1 5.0 | 1516 | 40.1 0.2 | 0059 | 47.3 4.0 | - | 100 0 | 83 4 | 2.0 | 8.5 1.9 | 1924 | 0.03 | 7.02 | - | - | - |
| Occidental Rd (Sebastopol) | 12/16/25 | 57.9 2.9 | 1523 | 38.8 0.0 | 0030 | 47.6 5.0 | 100 | 100 0 | 77 5 | 1.2 | 7.2 1.5 | 1117 | 0.02 | 5.83 | - | - | - |
| Lower Westside Rd (Ranch 12) | 12/16/25 | 57.2 2.1 | 1608 | 40.3 1.4 | 0259 | 46.2 4.0 | 92 | 100 0 | 73 0 | 0.6 | 5.1 0.4 | 1248 | 0.04 | 8.50 | - | - | 0 |
| Guerneville (Laughlin Rd) | 12/16/25 | 61.5 1.3 | 1420 | 44.1 3.5 | 0342 | 48.2 4.4 | 92 | 98 0 | 65 2 | 0.4 | 4.7 0.4 | 0541 | 0.05 | 9.34 | - | - | - |
| Korbel (Winery) | 12/16/25 | 58.7 3.9 | 1428 | 42.6 2.4 | 0342 | 47.3 4.4 | 92 | 100 0 | 70 3 | 0.9 | 5.8 1.7 | 1237 | 0.05 | 9.49 | - | - | - |
| Forestville (Shone Farms) | 12/16/25 | 58.8 6.8 | 1525 | 39.5 1.9 | 0255 | 46.0 3.7 | 92 | 98 0 | 77 7 | 1.2 | 5.6 0.8 | 0713 | 0.04 | 9.26 | 0.022 0.004 | 88 3 | 0 |
| Forestville-NE (Ranch 30) | 12/16/25 | 57.6 5.4 | 1449 | 38.9 0.3 | 0108 | 46.3 4.2 | 95 | 100 0 | 79 8 | 1.2 | 6.4 0.4 | 1952 | 0.05 | 8.69 | 0.022 0.005 | 95 6 | - |
| Green Valley Vineyard | 12/16/25 | 58.3 5.8 | 1443 | 40.6 1.4 | 0337 | 46.2 4.0 | 92 | 99 0 | 71 13 | 0.7 | 4.8 0.2 | 1918 | 0.04 | 10.00 | 0.002 0.000 | 0 3 | - |
| Green Valley (Sanchietti) | 12/16/25 | 60.6 8.6 | 1440 | 40.1 0.1 | 0336 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 12/16/25 | 58.9 7.4 | 1530 | 40.6 0.4 | 0333 | 47.2 4.6 | 94 | 100 0 | 77 13 | - | - | - | 0.03 | 8.64 | - | - | - |
| Graton-South (Mill Station Rd) | 12/16/25 | 60.5 8.4 | 1443 | 38.8 0.1 | 0050 | 45.8 3.7 | 92 | 100 0 | 69 13 | 0.1 | 5.3 1.6 | 0844 | 0.03 | 8.38 | - | - | 0 |
| Occidental (Horseshoe Bend) | 12/16/25 | 61.2 6.5 | 1422 | 43.6 7.1 | 0809 | 48.2 5.0 | - | 100 0 | 70 7 | - | - | - | 0.06 | 8.47 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 12/16/25 | 59.6 8.5 | 1547 | 39.8 0.5 | 0355 | 46.8 4.5 | 93 | 99 1 | 75 11 | 0.8 | 6.3 0.4 | 1229 | 0.00 | 6.98 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 12/16/25 | 58.5 8.0 | 1437 | 40.9 2.8 | 0426 | 46.7 4.0 | 95 | 100 0 | 77 18 | 0.4 | 5.3 0.3 | 0618 | 0.05 | 7.46 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 12/16/25 | 61.6 2.0 | 1215 | 54.2 6.4 | 2359 | 56.1 12.9 | 96 | 97 0 | 86 51 | 1.9 | 9.8 0.9 | 0505 | 0.20 | 13.28 | 0.017 0.035 | 57 132 | - |
| Max | 61.6 | - | 54.2 | - | 56.1 | 100 | 100 | 86 | 2.2 | 11.0 | - | 0.20 | 13.28 | 0.034 | 119 | - | |
| Avg | - | - | - | - | 42.2 | 88 | - | - | 1.0 | - | - | - | - | - | - | - | |
| Min | 57.1 | - | 38.6 | - | -10.6 | 42 | 88 | 0 | 0.1 | 4.7 | - | 0.00 | 1.93 | 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 | 12/16/25 | 62.8 6.6 | 1314 | 45.3 5.9 | 0722 | 49.3 6.8 | 98 2 | 63 1 | 0.9 0.4 | 6.2 3.0 | 1313 | SW | 222 | 0.00 | 5.40 | 0.028 0.011 | 122 80 | - |
| Lower Bennett Valley | 12/16/25 | 60.9 4.9 | 1344 | 38.0 4.0 | 0059 | 46.2 5.9 | 100 0 | 66 5 | 1.7 0.1 | 8.4 1.2 | 0758 | W | 268 | 0.05 | 6.61 | 0.028 0.003 | 118 53 | 0 0 |
| Kenwood (Wildwood) | 12/16/25 | 62.6 13.0 | 1348 | 38.2 1.5 | 0003 | 45.0 4.3 | 100 0 | 66 20 | 1.6 0.2 | 8.0 0.6 | 1403 | S | 182 | 0.06 | 6.98 | 0.029 0.006 | 127 1 | - |
| Sonoma Valley (Bedrock) | 12/16/25 | 58.1 8.6 | 1434 | 37.3 0.9 | 0001 | 43.3 4.1 | 98 0 | 66 13 | - | - | - | - | 0.00 | 6.71 | - | - | - |
| Sonoma-West (Arnold) | 12/16/25 | 60.7 7.7 | 1349 | 40.8 3.5 | 0433 | 45.0 4.1 | 100 0 | 62 10 | 1.1 0.1 | 7.3 1.8 | 1556 | S | 177 | 0.04 | 4.44 | 0.029 0.007 | 140 23 | - |
| Sonoma Valley HS | 12/16/25 | 59.2 7.6 | 1425 | 41.0 1.8 | 0043 | 45.6 4.0 | 100 0 | 70 10 | 0.9 0.1 | 5.4 1.2 | 1614 | SSE | 151 | 0.00 | 4.68 | 0.027 0.007 | 132 29 | - |
| Sonoma East (Bundschu01) | 12/16/25 | 59.6 6.5 | 1408 | 38.2 1.2 | 0014 | 44.2 4.0 | 97 0 | 63 6 | 1.5 0.0 | 8.6 1.8 | 1606 | SE | 142 | 0.00 | 0.13 | 0.030 0.008 | 140 26 | - |
| 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) | 12/16/25 | 61.9 8.1 | 1406 | 39.2 0.2 | 0003 | 44.1 3.6 | 97 0 | 58 12 | 1.1 0.3 | 8.4 2.0 | 1519 | SSE | 150 | 0.01 | 4.47 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 12/16/25 | 60.1 7.7 | 1416 | 40.4 1.5 | 0101 | 43.9 3.5 | 97 0 | 60 8 | 2.4 0.4 | 12.8 4.4 | 0657 | SE | 140 | 0.00 | 4.89 | 0.033 0.009 | 155 35 | - |
| Carneros (Ranch 71) | 12/16/25 | 56.9 6.6 | 1410 | 40.3 1.6 | 0503 | 44.1 2.7 | 100 0 | 69 22 | 3.1 0.2 | 9.6 2.0 | 1618 | E | 94 | 0.00 | 4.48 | 0.029 0.008 | 146 30 | 0 0 |
| Carneros Upper (Ranch 81) | 12/16/25 | 59.2 6.2 | 1355 | 40.5 1.5 | 0108 | 34.7 2.7 | - | - | 3.3 0.3 | 11.7 1.2 | 0843 | SE | 131 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 12/16/25 | 57.8 5.8 | 1333 | 41.1 1.5 | 0402 | 44.3 3.1 | 100 0 | 66 6 | 1.5 0.2 | 8.9 1.8 | 0846 | SE | 140 | 0.00 | 4.77 | 0.025 0.004 | 108 4 | - |
| Rohnert Park-West (Stony Point) | 12/16/25 | 58.8 6.9 | 1521 | 38.5 0.4 | 0133 | 45.6 3.9 | 99 1 | 75 5 | 2.0 0.4 | 13.2 4.7 | 0819 | SE | 135 | 0.00 | 1.56 | - | - | - |
| Cartograph Wines Base | 12/16/25 | 57.3 6.0 | 1521 | 40.5 1.8 | 0243 | 46.4 4.0 | 100 0 | 81 5 | 2.6 0.5 | 16.3 7.2 | 0825 | ESE | 111 | 0.01 | 6.68 | 0.026 0.004 | 128 5 | - |
| Cartograph Wines Remote | 12/16/25 | 57.9 5.9 | 1528 | 38.6 0.4 | 0049 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 12/16/25 | 59.7 6.2 | 1520 | 37.2 0.2 | 0034 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 12/16/25 | 61.0 9.9 | 1345 | 39.6 1.0 | 0001 | 44.3 3.6 | 98 1 | 59 17 | 4.1 1.1 | 15.8 4.4 | 0758 | SE | 131 | 0.00 | 0.10 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 12/16/25 | 58.1 11.1 | 1353 | 38.7 1.2 | 0522 | 44.4 3.5 | 100 0 | 70 20 | 4.5 1.0 | 12.6 1.7 | 0741 | ENE | 66 | 0.04 | 5.88 | 0.026 0.008 | 123 13 | 0 0 |
| Petaluma (Ranch 10) | 12/16/25 | 60.9 7.6 | 1347 | 39.1 0.5 | 0014 | 44.2 3.1 | 100 0 | 60 12 | 1.5 0.4 | 6.5 1.1 | 1223 | WSW | 248 | 0.00 | 4.29 | 0.027 0.005 | 118 13 | 0 0 |
| Max | 62.8 | - | 45.3 | - | 49.3 | 100 | 81 | 4.5 | 16.3 | - | - | 0.06 | 6.98 | 0.033 | 155 | - | |
| Avg | - | - | - | - | 44.4 | - | - | 2.1 | - | - | - | - | - | - | - | - | |
| Min | 56.9 | - | 37.2 | - | 34.7 | 97 | 58 | 0.9 | 5.4 | - | - | 0.00 | 0.10 | 0.025 | 108 | - |