| 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) | 12/30/25 | 60.0 7.3 | 1302 | 44.4 0.6 | 0157 | 36.9 4.3 | 57 | 79 12 | 38 11 | 1.7 | 6.5 5.5 | 0552 | NNW | 344 | 0.00 | 21.69 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 12/30/25 | 58.3 5.9 | 1020 | 47.8 2.6 | 0344 | 32.9 5.0 | 47 | 67 7 | 28 3 | 3.2 | 10.7 8.5 | 0212 | N | 11 | 0.00 | 22.24 | 0.062 0.025 | 218 52 | 0 0 |
| Cloverdale-East (Ranch 83) | 12/30/25 | 60.8 1.8 | 1334 | 32.6 3.3 | 0359 | 30.2 7.8 | - | - | - | 2.8 | 18.1 2.2 | 0539 | NNW | 346 | 0.00 | 19.13 | 0.040 0.017 | 180 44 | 0 0 |
| Cloverdale-SE (Ranch 38) | 12/30/25 | 59.5 3.8 | 1319 | 37.2 1.9 | 0803 | 41.1 1.8 | 82 | 96 8 | 58 13 | 3.7 | 16.1 9.1 | 0530 | SSE | 157 | 0.00 | 20.30 | 0.039 0.024 | 181 46 | 0 0 |
| Geyserville-North (Hoffman) | 12/30/25 | 52.0 14.5 | 1346 | 30.1 0.9 | 0619 | 37.3 0.8 | 91 | 97 0 | 73 31 | 1.8 | 8.1 0.2 | 1112 | ESE | 122 | 0.00 | 0.00 | 0.030 0.020 | 157 64 | 0 0 |
| Geyserville (Ranch 3) | 12/30/25 | 51.6 12.2 | 1338 | 31.0 0.4 | 0651 | 38.4 0.2 | 94 | 100 0 | 71 29 | 1.7 | 7.7 0.6 | 1111 | SE | 130 | 0.00 | 17.73 | 0.028 0.020 | 165 60 | 0 0 |
| Geyserville-East (Ranch 40) | 12/30/25 | 56.6 12.6 | 1152 | 36.4 0.6 | 0749 | 41.4 0.8 | 88 | 98 3 | 62 24 | 2.3 | 11.5 2.6 | 1654 | S | 179 | 0.00 | 17.73 | 0.036 0.018 | 196 45 | 0 0 |
| Geyserville-South (Nervo Station) | 12/30/25 | 52.0 12.9 | 1453 | 32.0 2.6 | 0628 | - | - | - | - | 1.1 | 6.1 0.3 | 1042 | E | 97 | 0.01 | 13.05 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 12/30/25 | 52.3 17.2 | 1459 | 31.0 1.2 | 0743 | 37.6 0.6 | 94 | 100 0 | 71 39 | 0.9 | 5.5 0.0 | 1435 | WNW | 290 | 0.00 | 16.13 | 0.024 0.014 | 142 57 | 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) | 12/30/25 | 53.4 13.4 | 1337 | 30.4 0.5 | 0727 | 37.3 0.2 | 92 | 100 0 | 67 29 | 1.0 | 6.0 3.6 | 1304 | W | 259 | 0.00 | 16.68 | 0.028 0.014 | 147 55 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 12/30/25 | 52.2 11.4 | 1515 | 30.7 0.9 | 0733 | 37.4 0.3 | 93 | 100 0 | 71 29 | 1.4 | 8.5 0.8 | 1412 | S | 171 | 0.01 | 16.55 | 0.028 0.013 | 156 43 | - |
| Knights Valley (Bavarian Lion) | 12/30/25 | 55.5 9.2 | 1257 | 30.8 1.1 | 0659 | 37.6 1.4 | 92 | 99 1 | 66 31 | 1.5 | 6.4 2.5 | 1338 | NNW | 328 | 0.00 | 17.04 | 0.029 0.018 | 158 63 | - |
| Upper Dry Creek Valley | 12/30/25 | 50.8 13.1 | 1343 | 31.8 0.8 | 0656 | 38.0 0.4 | 94 | 99 0 | 73 28 | 1.5 | 10.6 6.5 | 1123 | SE | 133 | 0.01 | 19.65 | 0.029 0.021 | 179 67 | - |
| Lower Dry Creek Valley | 12/30/25 | 48.1 18.0 | 1546 | 31.9 1.7 | 0516 | 38.1 0.1 | 98 | 100 0 | 79 38 | 2.1 | 11.8 5.3 | 1411 | SSE | 148 | 0.00 | 18.26 | 0.019 0.026 | 118 101 | 0 0 |
| Max | 60.8 | - | 47.8 | - | 41.4 | 98 | 100 | 79 | 3.7 | 18.1 | - | - | 0.01 | 22.24 | 0.062 | 218 | - | |
| Avg | - | - | - | - | 37.2 | 85 | - | - | 1.9 | - | - | - | - | - | - | - | - | |
| Min | 48.1 | - | 30.1 | - | 30.2 | 47 | 67 | 28 | 0.9 | 5.5 | - | - | 0.00 | 0.00 | 0.019 | 118 | - |
| 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) | 12/30/25 | 48.3 16.2 | 1441 | 31.7 0.6 | 0418 | - | - | 100 0 | 84 40 | 0.4 | 6.5 1.1 | 1355 | 0.00 | 10.79 | - | - | 0 |
| Windsor-NW (Ranch 8) | 12/30/25 | 46.7 17.6 | 1532 | 33.1 0.7 | 0627 | 36.7 3.5 | 90 | 93 1 | 85 34 | 0.7 | 6.5 0.4 | 0439 | 0.01 | 16.13 | 0.017 0.025 | 101 111 | - |
| Windsor-East (Ranch 16) | 12/30/25 | 48.7 14.7 | 1425 | 30.6 0.5 | 0409 | 37.0 0.2 | 97 | 100 0 | 79 34 | 1.1 | 6.6 0.5 | 0855 | 0.01 | 12.27 | 0.017 0.029 | 102 115 | 0 |
| Mark West-North (Ranch 14) | 12/30/25 | 49.3 13.4 | 1423 | 31.4 0.2 | 0447 | 37.0 0.2 | 95 | 99 0 | 78 34 | 0.6 | 5.4 0.1 | 0902 | 0.00 | 13.78 | 0.001 0.005 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 12/30/25 | 47.5 14.3 | 1634 | 32.2 1.3 | 0105 | 37.5 1.1 | 98 | 100 0 | 89 44 | 0.7 | 5.4 0.7 | 0836 | 0.00 | 9.01 | 0.016 0.029 | 92 141 | 0 |
| Fulton-NW (Ranch 5) | 12/30/25 | 47.7 12.0 | 1607 | 30.6 0.1 | 0448 | -12.0 22.6 | 34 | 100 0 | 3 0 | 0.9 | 5.3 0.7 | 0635 | 0.00 | 13.75 | 0.025 0.020 | 91 129 | 0 |
| Windsor-South (Laughlin Rd) | 12/30/25 | 47.2 15.6 | 1548 | 33.1 2.4 | 0605 | -43.3 40.1 | 15 | 100 0 | 0 0 | - | - | - | 0.00 | 13.18 | - | - | - |
| Fulton-SE (Barnes Rd) | 12/30/25 | 48.2 12.6 | 1626 | 31.0 0.5 | 0442 | 37.1 0.1 | 95 | 98 0 | 82 34 | 1.0 | 5.9 1.1 | 0630 | 0.00 | 13.36 | - | - | - |
| Fulton-SW (Ranch 21) | 12/30/25 | 46.7 13.2 | 1548 | 31.9 1.4 | 0446 | -69.3 59.8 | 1 | 100 0 | 0 0 | 1.2 | 6.1 1.4 | 1043 | 0.00 | 13.30 | 0.026 0.027 | 106 150 | - |
| Santa Rosa-NW (Goldfields) | 12/30/25 | 48.1 15.8 | 1521 | 32.9 1.7 | 0410 | 38.1 1.0 | 98 | 100 0 | 86 45 | 1.2 | 8.0 1.4 | 1036 | 0.00 | 14.06 | 0.014 0.029 | 79 133 | - |
| Goldfields Remote | 12/30/25 | 47.6 12.5 | 1629 | 32.7 1.7 | 0409 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 12/30/25 | 47.3 13.2 | 1635 | 32.2 2.0 | 0412 | 37.9 0.2 | 100 | 100 0 | 97 47 | 0.7 | 5.4 1.4 | 0630 | 0.01 | 11.54 | - | - | - |
| River Rd South (Denner Ranch) | 12/30/25 | 47.3 14.5 | 1424 | 32.1 1.4 | 0447 | 38.4 0.4 | 100 | 100 0 | 100 53 | 1.5 | 7.2 0.4 | 1025 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 12/30/25 | 48.0 14.5 | 1633 | 32.6 1.8 | 0430 | 37.9 0.6 | 98 | 100 0 | 85 41 | 0.7 | 4.6 2.4 | 1200 | 0.07 | 11.89 | 0.001 0.004 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 12/30/25 | 47.9 11.9 | 1631 | 33.7 1.0 | 0432 | 38.7 0.2 | 98 | 100 0 | 87 39 | - | - | - | 0.01 | 12.91 | - | - | - |
| Guerneville Rd West (Balletto) | 12/30/25 | 47.2 12.4 | 1652 | 33.5 1.4 | 0422 | 38.0 0.0 | 98 | 100 0 | 91 38 | 1.0 | 6.8 0.5 | 1031 | 0.00 | 12.19 | - | - | - |
| Sanchietti Ranch | 12/30/25 | 48.7 10.6 | 1607 | 33.4 0.5 | 0608 | 39.6 0.1 | - | 100 0 | 90 31 | 1.3 | 7.1 0.4 | 0939 | 0.00 | 13.31 | - | - | - |
| Occidental Rd (Sebastopol) | 12/30/25 | 46.6 13.9 | 1618 | 31.8 0.5 | 0603 | 38.6 3.4 | 100 | 100 0 | 100 8 | 1.0 | 5.9 1.1 | 0722 | 0.02 | 6.57 | - | - | - |
| Lower Westside Rd (Ranch 12) | 12/30/25 | 50.0 17.0 | 1440 | 33.6 0.6 | 0634 | 38.3 0.2 | 95 | 100 0 | 75 38 | 0.5 | 4.6 0.0 | 0835 | 0.00 | 15.53 | - | - | 0 |
| Guerneville (Laughlin Rd) | 12/30/25 | 48.6 7.9 | 1431 | 35.4 0.0 | 0731 | 40.2 1.6 | 97 | 99 0 | 79 10 | 1.0 | 5.2 0.7 | 0718 | 0.01 | 22.19 | - | - | - |
| Korbel (Winery) | 12/30/25 | 47.4 10.4 | 1443 | 37.1 0.4 | 0652 | 41.0 1.4 | 98 | 100 0 | 85 26 | 1.0 | 7.9 3.4 | 1041 | 0.03 | 19.94 | - | - | - |
| Forestville (Shone Farms) | 12/30/25 | 47.6 13.0 | 1651 | 32.6 0.1 | 0633 | 38.3 0.8 | 97 | 98 0 | 91 41 | 1.0 | 6.4 0.9 | 1044 | 0.01 | 17.17 | 0.016 0.030 | 87 132 | 0 |
| Forestville-NE (Ranch 30) | 12/30/25 | 47.6 13.5 | 1425 | 34.3 0.2 | 0706 | 39.0 1.7 | 100 | 100 0 | 97 45 | 0.9 | 6.2 0.3 | 1048 | 0.01 | 15.62 | 0.014 0.032 | 82 148 | - |
| Green Valley Vineyard | 12/30/25 | 47.1 13.3 | 1533 | 32.2 0.3 | 0528 | 38.6 0.1 | 97 | 99 0 | 89 44 | 1.3 | 6.4 1.3 | 1026 | 0.01 | 19.01 | 0.017 0.010 | 91 91 | - |
| Green Valley (Sanchietti) | 12/30/25 | 48.9 14.6 | 1529 | 31.0 0.5 | 0452 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 12/30/25 | 47.6 13.5 | 1614 | 29.8 0.9 | 0510 | 36.9 0.1 | 98 | 100 0 | 91 41 | - | - | - | 0.01 | 16.87 | - | - | - |
| Graton-South (Mill Station Rd) | 12/30/25 | 47.2 13.8 | 1513 | 30.0 1.0 | 0514 | 37.0 0.1 | 98 | 100 0 | 90 46 | 0.1 | 4.3 0.6 | 1038 | 0.01 | 15.12 | - | - | 0 |
| Occidental (Horseshoe Bend) | 12/30/25 | 50.4 11.0 | 1421 | 37.5 1.3 | 0855 | 39.8 1.4 | - | 97 4 | 65 28 | - | - | - | 0.12 | 14.65 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 12/30/25 | 47.8 10.4 | 1533 | 29.1 1.8 | 0631 | 36.5 0.9 | 97 | 100 0 | 88 36 | 0.8 | 6.2 1.9 | 1139 | 0.00 | 7.01 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 12/30/25 | 46.9 12.2 | 1455 | 35.2 1.7 | 0749 | 40.8 0.1 | 98 | 100 0 | 92 41 | 0.4 | 5.9 0.7 | 1143 | 0.00 | 15.58 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 12/30/25 | 60.8 3.8 | 1041 | 49.6 2.0 | 0454 | 34.0 1.4 | 46 | 58 10 | 32 2 | 4.7 | 17.7 10.7 | 1901 | 0.00 | 28.40 | 0.070 0.009 | 199 43 | - |
| Max | 60.8 | - | 49.6 | - | 41.0 | 100 | 100 | 100 | 4.7 | 17.7 | - | 0.12 | 28.40 | 0.070 | 199 | - | |
| Avg | - | - | - | - | 29.6 | 86 | - | - | 1.0 | - | - | - | - | - | - | - | |
| Min | 46.6 | - | 29.1 | - | -69.3 | 1 | 58 | 0 | 0.1 | 4.3 | - | 0.00 | 6.57 | 0.001 | 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 | 12/30/25 | 57.3 2.9 | 1959 | 37.0 2.7 | 0615 | 37.3 1.2 | 91 0 | 33 1 | 1.6 0.2 | 12.1 2.6 | 1946 | NNW | 339 | 0.00 | 5.41 | 0.033 0.025 | 163 112 | - |
| Lower Bennett Valley | 12/30/25 | 48.9 12.2 | 1415 | 27.6 0.5 | 0651 | 36.3 0.7 | 100 0 | 79 30 | 1.3 0.2 | 8.5 0.0 | 1705 | NW | 314 | 0.00 | 13.66 | 0.024 0.025 | 140 98 | 0 0 |
| Kenwood (Wildwood) | 12/30/25 | 49.5 9.8 | 1441 | 30.8 1.0 | 0406 | 38.4 1.8 | 100 0 | 79 34 | 2.8 0.9 | 11.4 4.2 | 1315 | SSW | 195 | 0.00 | 15.32 | 0.021 0.026 | 126 92 | - |
| Sonoma Valley (Bedrock) | 12/30/25 | 49.5 9.0 | 1444 | 28.5 1.7 | 0514 | 37.0 2.2 | 99 1 | 75 31 | - | - | - | - | 0.02 | 8.97 | - | - | - |
| Sonoma-West (Arnold) | 12/30/25 | 53.4 6.8 | 1436 | 30.3 0.0 | 0423 | 38.8 2.8 | 100 0 | 68 26 | 1.2 0.2 | 7.5 0.4 | 1523 | S | 176 | 0.00 | 10.64 | 0.023 0.036 | 126 152 | - |
| Sonoma Valley HS | 12/30/25 | 50.3 8.4 | 1437 | 31.4 1.3 | 0424 | 39.3 1.7 | 100 0 | 82 31 | 1.0 0.2 | 4.5 2.8 | 1554 | S | 187 | 0.01 | 4.81 | 0.022 0.026 | 118 125 | - |
| Sonoma East (Bundschu01) | 12/30/25 | 52.1 7.1 | 1436 | 29.5 0.7 | 0415 | 37.8 2.4 | 98 1 | 73 29 | 1.6 0.1 | 8.1 2.2 | 0642 | N | 8 | 0.00 | 0.13 | 0.023 0.032 | 128 135 | - |
| Schellville (Sasaki) | 12/29/25 | 59.7 | 1210 | 33.9 | 2316 | 38.2 | 97 | 42 | 1.3 | 9.5 | 1437 | NNE | 20 | 0.00 | 0.00 | - | - | 0 |
| Sonoma-SE (Napoli) | 12/30/25 | 52.2 8.9 | 1501 | 31.0 0.6 | 0343 | 38.1 2.2 | 97 1 | 75 32 | 0.5 0.4 | 9.5 1.0 | 0646 | NNW | 339 | 0.01 | 7.92 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 12/30/25 | 51.1 7.5 | 1409 | 30.6 0.6 | 0324 | 38.0 2.7 | 98 0 | 74 31 | 3.0 0.6 | 12.8 3.1 | 1003 | ESE | 123 | 0.00 | 9.81 | 0.028 0.031 | 157 116 | - |
| Carneros (Ranch 71) | 12/30/25 | 51.5 6.0 | 1430 | 33.2 5.0 | 0500 | 39.3 0.9 | 100 11 | 64 18 | 2.6 0.4 | 10.3 1.1 | 1934 | E | 96 | 0.00 | 8.70 | 0.025 0.028 | 138 112 | 0 0 |
| Carneros Upper (Ranch 81) | 12/30/25 | 52.4 5.4 | 1430 | 34.0 6.5 | 0506 | 19.6 18.2 | - | - | 3.7 0.6 | 10.4 0.3 | 0655 | WSW | 245 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 12/30/25 | 50.8 7.8 | 1415 | 32.1 0.6 | 0418 | -6.8 35.1 | 100 0 | 0 0 | 1.3 0.2 | 8.4 1.7 | 1202 | S | 177 | 0.00 | 8.85 | 0.029 0.009 | 104 44 | - |
| Rohnert Park-West (Stony Point) | 12/30/25 | 49.1 10.7 | 1533 | 31.7 0.9 | 0112 | 39.6 2.8 | 100 0 | 87 35 | 2.3 1.5 | 10.4 3.7 | 1601 | ESE | 110 | 0.00 | 1.57 | - | - | - |
| Cartograph Wines Base | 12/30/25 | 48.3 9.9 | 1525 | 35.7 1.8 | 0539 | 41.2 0.9 | 100 0 | 90 33 | 3.1 1.2 | 13.3 4.5 | 1553 | ESE | 107 | 0.00 | 12.37 | 0.021 0.022 | 126 108 | - |
| Cartograph Wines Remote | 12/30/25 | 49.2 7.7 | 1211 | 32.5 0.7 | 0134 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 12/30/25 | 49.4 10.7 | 1358 | 28.8 0.9 | 0110 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 12/30/25 | 49.4 9.6 | 1458 | 29.6 0.0 | 0522 | 38.0 2.5 | 98 0 | 76 34 | 4.0 1.8 | 15.0 5.4 | 1016 | SE | 128 | 0.00 | 0.10 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 12/30/25 | 48.7 7.7 | 0122 | 34.9 5.1 | 0539 | 38.8 1.3 | 100 8 | 56 9 | 5.0 1.3 | 14.2 2.9 | 1501 | E | 84 | 0.00 | 11.37 | 0.021 0.031 | 124 115 | 0 0 |
| Petaluma (Ranch 10) | 12/30/25 | 52.3 9.5 | 1427 | 30.5 0.3 | 0315 | 39.2 2.3 | 100 0 | 74 36 | 2.6 1.6 | 8.5 2.2 | 1516 | SE | 146 | 0.00 | 8.36 | 0.023 0.021 | 122 72 | 0 0 |
| Max | 57.3 | - | 37.0 | - | 41.2 | 100 | 90 | 5.0 | 15.0 | - | - | 0.02 | 15.32 | 0.033 | 163 | - | |
| Avg | - | - | - | - | 34.7 | - | - | 2.3 | - | - | - | - | - | - | - | - | |
| Min | 48.3 | - | 27.6 | - | -6.8 | 91 | 0 | 0.5 | 4.5 | - | - | 0.00 | 0.10 | 0.021 | 104 | - |