| 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) | 12/26/25 | 51.5 0.1 | 1333 | 44.8 1.3 | 2145 | 43.8 0.0 | 90 | 97 2 | 76 3 | 5.8 | 20.2 7.8 | 1725 | WNW | 295 | 0.63 | 21.69 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 12/26/25 | 49.2 1.0 | 1325 | 41.3 1.2 | 2131 | 42.4 0.2 | 95 | 100 0 | 79 7 | 18.0 | 52.2 29.1 | 0847 | SSE | 153 | 0.64 | 22.24 | 0.016 0.004 | 86 21 | 0 0 |
| Cloverdale-East (Ranch 83) | 12/26/25 | 56.6 2.1 | 1501 | 44.2 3.2 | 2202 | 39.3 7.7 | - | - | - | 5.1 | 26.5 10.3 | 0418 | ESE | 116 | 0.89 | 19.13 | 0.024 0.002 | 90 18 | 0 0 |
| Cloverdale-SE (Ranch 38) | 12/26/25 | 56.7 3.0 | 1505 | 46.4 0.1 | 2339 | 46.8 0.7 | 91 | 100 2 | 79 0 | 8.2 | 29.2 22.9 | 1003 | SSE | 153 | 0.96 | 20.30 | 0.018 0.003 | 84 11 | 0 0 |
| Geyserville-North (Hoffman) | 12/24/25 | 60.0 | 1345 | 49.9 | 0831 | 49.2 | 80 | 96 | 62 | 5.5 | 24.0 | 1943 | SE | 144 | 0.00 | 0.00 | 0.059 | 268 | 0 |
| Geyserville (Ranch 3) | 12/26/25 | 54.4 0.8 | 1540 | 43.9 4.6 | 2324 | 47.8 1.3 | 93 | 100 0 | 77 6 | 4.5 | 16.5 8.8 | 1246 | SE | 127 | 0.52 | 17.73 | 0.016 0.010 | 69 19 | 0 0 |
| Geyserville-East (Ranch 40) | 12/26/25 | 56.1 2.5 | 1406 | 44.7 1.9 | 2350 | 46.7 0.9 | 92 | 100 1 | 80 5 | 10.9 | 40.9 21.2 | 1225 | SSW | 207 | 0.71 | 17.73 | 0.021 0.009 | 87 2 | 0 0 |
| Geyserville-South (Nervo Station) | 12/26/25 | 54.1 1.2 | 1448 | 44.7 2.9 | 2345 | - | - | - | - | 3.7 | 17.8 6.7 | 1231 | S | 176 | 0.52 | 13.02 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 12/26/25 | 56.2 0.4 | 1437 | 43.2 5.3 | 2113 | 45.5 1.3 | 84 | 100 7 | 74 12 | 2.5 | 23.7 2.6 | 1143 | SSW | 201 | 0.66 | 16.13 | 0.022 0.009 | 77 2 | 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) | 12/26/25 | 58.6 2.0 | 1451 | 40.2 8.5 | 2100 | 46.3 1.7 | 89 | 100 5 | 71 6 | 2.5 | 17.1 12.4 | 1227 | SSE | 161 | 0.53 | 16.67 | 0.022 0.001 | 77 18 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 12/26/25 | 54.4 1.1 | 1447 | 42.3 5.1 | 2131 | 45.8 1.4 | 89 | 100 2 | 74 8 | 3.6 | 21.0 9.3 | 1132 | S | 191 | 0.60 | 16.54 | 0.021 0.007 | 70 11 | - |
| Knights Valley (Bavarian Lion) | 12/26/25 | 54.6 0.9 | 1442 | 38.9 9.1 | 2359 | 44.6 1.6 | 86 | 97 6 | 72 9 | 3.9 | 19.3 10.3 | 1327 | ESE | 111 | 0.44 | 17.04 | 0.024 0.011 | 78 16 | - |
| Upper Dry Creek Valley | 12/26/25 | 55.6 0.5 | 1521 | 42.8 4.9 | 2157 | 46.4 1.3 | 90 | 97 2 | 71 6 | 3.8 | 15.4 18.0 | 0957 | SSE | 168 | 0.83 | 19.64 | 0.020 0.003 | 74 6 | - |
| Lower Dry Creek Valley | 12/26/25 | 59.6 3.3 | 1446 | 40.4 7.7 | 2331 | 47.1 1.2 | 92 | 100 0 | 68 0 | 3.9 | 19.6 8.6 | 1031 | ESE | 117 | 0.76 | 18.25 | 0.025 0.005 | 95 21 | 0 0 |
| Max | 59.6 | - | 46.4 | - | 47.8 | 95 | 100 | 80 | 18.0 | 52.2 | - | - | 0.96 | 22.24 | 0.025 | 95 | - | |
| Avg | - | - | - | - | 45.2 | 90 | - | - | 5.9 | - | - | - | - | - | - | - | - | |
| Min | 49.2 | - | 38.9 | - | 39.3 | 84 | 97 | 68 | 2.5 | 15.4 | - | - | 0.44 | 13.02 | 0.016 | 69 | - |
| 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) | 12/26/25 | 58.8 1.3 | 1507 | 39.3 9.1 | 2339 | - | - | 100 5 | 69 5 | 3.7 | 22.8 6.1 | 1211 | 0.59 | 10.79 | - | - | 0 |
| Windsor-NW (Ranch 8) | 12/26/25 | 57.8 0.4 | 1418 | 42.0 6.5 | 2324 | 45.7 1.9 | 84 | 89 4 | 79 8 | 2.8 | 20.0 4.6 | 1221 | 0.50 | 16.10 | 0.025 0.007 | 102 2 | - |
| Windsor-East (Ranch 16) | 12/26/25 | 58.1 0.8 | 1444 | 38.1 10.3 | 2359 | 45.4 2.5 | 86 | 100 6 | 68 7 | 4.9 | 27.3 2.4 | 1358 | 0.33 | 12.26 | 0.030 0.006 | 97 0 | 0 |
| Mark West-North (Ranch 14) | 12/26/25 | 57.6 1.6 | 1439 | 39.4 8.8 | 2357 | 45.4 2.3 | 86 | 98 2 | 68 10 | 2.7 | 18.5 2.9 | 1243 | 0.45 | 13.78 | 0.012 0.005 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 12/26/25 | 57.1 2.3 | 1156 | 38.1 10.3 | 2359 | 45.6 2.5 | 87 | 99 4 | 72 9 | 3.9 | 23.5 0.8 | 1037 | 0.46 | 8.99 | 0.028 0.006 | 99 11 | 0 |
| Fulton-NW (Ranch 5) | 12/26/25 | 56.2 2.5 | 1453 | 38.6 9.8 | 2311 | 42.7 5.7 | 83 | 100 2 | 3 58 | 4.8 | 25.4 3.0 | 0948 | 0.41 | 13.74 | 0.028 0.012 | 94 20 | 0 |
| Windsor-South (Laughlin Rd) | 12/26/25 | 58.2 0.5 | 1459 | 40.3 8.1 | 2331 | 43.6 3.8 | 82 | 100 8 | 0 61 | - | - | - | 0.34 | 13.16 | - | - | - |
| Fulton-SE (Barnes Rd) | 12/26/25 | 56.6 1.8 | 1507 | 40.0 8.6 | 2232 | 45.8 2.4 | 86 | 98 4 | 68 5 | 4.1 | 20.2 9.1 | 1035 | 0.28 | 13.36 | - | - | - |
| Fulton-SW (Ranch 21) | 12/26/25 | 56.6 2.0 | 1505 | 39.6 8.6 | 2326 | 39.3 8.5 | 80 | 100 7 | 0 63 | 5.8 | 30.0 3.1 | 1110 | 0.36 | 13.30 | 0.033 0.008 | 112 19 | - |
| Santa Rosa-NW (Goldfields) | 12/26/25 | 56.8 2.8 | 1511 | 39.5 8.8 | 2334 | 45.7 2.5 | 86 | 100 4 | 67 8 | 5.4 | 26.3 6.2 | 0958 | 0.42 | 14.05 | 0.029 0.010 | 76 27 | - |
| Goldfields Remote | 12/26/25 | 55.9 1.5 | 1035 | 38.8 9.8 | 2319 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 12/26/25 | 56.2 2.5 | 1513 | 38.2 10.0 | 2352 | 47.6 2.9 | 93 | 100 0 | 74 6 | 3.7 | 27.2 5.4 | 1055 | 0.36 | 11.53 | - | - | - |
| River Rd South (Denner Ranch) | 12/26/25 | 57.0 1.5 | 1513 | 40.3 8.4 | 2345 | 46.5 2.0 | 87 | 100 0 | 69 6 | 7.9 | 42.1 5.7 | 1349 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 12/26/25 | 56.6 2.0 | 1523 | 38.8 9.8 | 2355 | 45.6 2.3 | 86 | 98 3 | 67 7 | 3.5 | 23.8 7.6 | 1251 | 0.38 | 11.28 | 0.016 0.005 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 12/26/25 | 56.3 2.1 | 1530 | 40.3 9.0 | 2345 | 46.4 2.0 | 86 | 99 4 | 68 5 | - | - | - | 0.42 | 12.61 | - | - | - |
| Guerneville Rd West (Balletto) | 12/26/25 | 56.4 2.0 | 1529 | 38.7 10.6 | 2342 | 46.7 2.6 | 88 | 99 2 | 72 4 | 5.1 | 24.4 5.6 | 1020 | 0.36 | 12.18 | - | - | - |
| Sanchietti Ranch | 12/26/25 | 57.4 2.0 | 1508 | 40.4 9.3 | 2356 | 48.0 2.5 | - | 99 3 | 76 4 | 5.6 | 29.4 10.4 | 1113 | 0.27 | 13.30 | - | - | - |
| Occidental Rd (Sebastopol) | 12/26/25 | 57.5 1.8 | 1513 | 39.4 8.5 | 2339 | 50.1 2.7 | 100 | 100 0 | 100 0 | 4.4 | 29.6 4.8 | 1225 | 0.04 | 6.49 | - | - | - |
| Lower Westside Rd (Ranch 12) | 12/26/25 | 60.4 1.8 | 1430 | 40.7 7.9 | 2345 | 46.1 1.9 | 87 | 97 2 | 69 7 | 2.4 | 17.0 3.0 | 0928 | 0.47 | 15.52 | - | - | 0 |
| Guerneville (Laughlin Rd) | 12/26/25 | 57.5 1.3 | 1429 | 42.4 5.6 | 2352 | 46.8 1.6 | 90 | 98 3 | 70 7 | 2.4 | 22.7 11.2 | 1234 | 0.59 | 22.16 | - | - | - |
| Korbel (Winery) | 12/26/25 | 57.2 0.8 | 1416 | 43.8 4.9 | 2358 | 47.2 0.8 | 89 | 100 5 | 73 11 | 2.5 | 22.9 10.1 | 1117 | 0.50 | 19.88 | - | - | - |
| Forestville (Shone Farms) | 12/26/25 | 58.7 0.9 | 1515 | 41.2 6.6 | 2349 | 46.5 1.4 | 86 | 98 4 | 74 11 | 5.0 | 30.4 6.4 | 1012 | 0.49 | 17.13 | 0.031 0.009 | 91 20 | 0 |
| Forestville-NE (Ranch 30) | 12/26/25 | 58.2 0.2 | 1516 | 41.5 6.7 | 2355 | 47.2 1.6 | 91 | 100 4 | 78 9 | 5.1 | 29.0 9.6 | 1324 | 0.44 | 15.59 | 0.029 0.005 | 114 1 | - |
| Green Valley Vineyard | 12/26/25 | 56.8 0.7 | 1419 | 40.2 7.8 | 2358 | 45.4 2.1 | 85 | 98 5 | 71 6 | 5.1 | 27.6 6.6 | 1243 | 0.55 | 18.99 | 0.018 0.004 | 0 0 | - |
| Green Valley (Sanchietti) | 12/26/25 | 58.0 1.3 | 1443 | 39.1 10.1 | 2321 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 12/26/25 | 56.8 1.1 | 1445 | 37.5 11.7 | 2356 | 46.4 3.0 | 87 | 99 5 | 76 4 | - | - | - | 0.45 | 16.86 | - | - | - |
| Graton-South (Mill Station Rd) | 12/26/25 | 56.3 0.9 | 1213 | 38.1 10.5 | 2359 | 45.6 2.6 | 84 | 99 6 | 69 4 | 3.2 | 19.3 2.2 | 1050 | 0.29 | 15.10 | - | - | 0 |
| Occidental (Horseshoe Bend) | 12/26/25 | 55.5 0.6 | 1507 | 42.9 3.6 | 2302 | 45.8 1.9 | - | 97 0 | 73 3 | - | - | - | 0.22 | 13.95 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 12/26/25 | 56.5 2.2 | 1527 | 38.4 10.8 | 2359 | 46.3 3.2 | 88 | 99 2 | 76 8 | 2.0 | 16.0 6.8 | 1124 | 0.00 | 7.00 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 12/26/25 | 54.5 2.7 | 1156 | 44.9 2.5 | 2350 | 46.7 2.0 | 87 | 99 0 | 78 6 | 5.2 | 27.0 6.8 | 1343 | 0.29 | 15.58 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 12/26/25 | 48.3 2.6 | 1245 | 42.7 0.6 | 2045 | 44.5 1.0 | 95 | 97 0 | 87 8 | 5.2 | 25.4 15.9 | 0747 | 0.96 | 28.39 | 0.014 0.003 | 62 20 | - |
| Max | 60.4 | - | 44.9 | - | 50.1 | 100 | 100 | 100 | 7.9 | 42.1 | - | 0.96 | 28.39 | 0.033 | 114 | - | |
| Avg | - | - | - | - | 45.9 | 87 | - | - | 4.2 | - | - | - | - | - | - | - | |
| Min | 48.3 | - | 37.5 | - | 39.3 | 80 | 89 | 0 | 2.0 | 16.0 | - | 0.00 | 6.49 | 0.012 | 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 | 12/26/25 | 51.4 2.9 | 1116 | 41.5 2.5 | 2035 | 44.4 1.7 | 98 0 | 73 4 | 2.4 1.8 | 20.5 9.0 | 1139 | SE | 140 | 0.00 | 5.41 | 0.016 0.011 | 56 50 | - |
| Lower Bennett Valley | 12/26/25 | 55.8 0.3 | 1132 | 36.0 11.5 | 2248 | 44.5 3.2 | 100 6 | 67 2 | 4.4 2.6 | 24.8 8.5 | 1140 | SSW | 204 | 0.28 | 13.65 | 0.029 0.003 | 77 6 | 0 0 |
| Kenwood (Wildwood) | 12/26/25 | 54.2 0.9 | 1213 | 38.2 9.8 | 2238 | 45.0 2.7 | 100 2 | 73 5 | 3.8 3.0 | 25.1 6.3 | 1226 | WSW | 258 | 0.33 | 15.32 | 0.027 0.005 | 97 4 | - |
| Sonoma Valley (Bedrock) | 12/26/25 | 54.8 1.1 | 1220 | 36.0 8.6 | 2358 | 43.5 3.2 | 98 3 | 68 4 | - | - | - | - | 0.04 | 8.85 | - | - | - |
| Sonoma-West (Arnold) | 12/26/25 | 59.0 0.8 | 1204 | 38.4 9.2 | 2338 | 44.6 3.5 | 100 5 | 65 4 | 3.3 2.4 | 23.1 4.2 | 1222 | SSW | 210 | 0.69 | 10.25 | 0.032 0.009 | 118 28 | - |
| Sonoma Valley HS | 12/26/25 | 57.0 1.6 | 1220 | 38.9 5.9 | 2322 | 46.5 3.7 | 100 0 | 74 1 | 2.1 1.8 | 11.4 1.7 | 1404 | S | 186 | 0.01 | 4.77 | 0.022 0.009 | 94 33 | - |
| Sonoma East (Bundschu01) | 12/26/25 | 56.8 2.6 | 1219 | 36.5 7.9 | 2303 | 44.5 3.7 | 98 4 | 68 3 | 4.7 2.5 | 27.2 6.4 | 1234 | SSW | 192 | 0.00 | 0.13 | 0.030 0.013 | 89 51 | - |
| 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) | 12/26/25 | 57.2 2.7 | 1218 | 38.4 7.6 | 2330 | 44.9 3.5 | 95 3 | 68 5 | 3.9 2.8 | 27.2 2.7 | 1242 | S | 184 | 0.15 | 7.90 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 12/26/25 | 58.0 1.4 | 1215 | 39.6 7.5 | 2323 | 45.6 3.1 | 96 2 | 68 4 | 6.5 2.4 | 26.2 6.6 | 1212 | SSW | 204 | 0.28 | 9.81 | 0.036 0.008 | 124 20 | - |
| Carneros (Ranch 71) | 12/26/25 | 57.3 1.1 | 1216 | 42.7 4.9 | 2328 | 45.8 2.7 | 96 4 | 68 2 | 6.5 1.6 | 29.0 0.1 | 1233 | SSW | 193 | 0.26 | 8.70 | 0.033 0.007 | 108 28 | 0 0 |
| Carneros Upper (Ranch 81) | 12/26/25 | 57.7 1.2 | 1216 | 44.6 3.2 | 2329 | 44.7 1.2 | - | - | 11.5 4.0 | 37.6 9.7 | 1230 | SSW | 205 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 12/26/25 | 58.1 2.4 | 1220 | 37.7 8.9 | 0001 | 23.0 17.4 | 100 0 | 0 0 | 2.7 2.7 | 24.0 1.6 | 1210 | S | 188 | 0.19 | 8.84 | 0.026 0.011 | 77 28 | - |
| Rohnert Park-West (Stony Point) | 12/26/25 | 56.9 2.5 | 0954 | 38.9 9.2 | 2357 | 46.3 2.9 | 96 0 | 71 4 | 5.7 2.5 | 25.1 8.8 | 1044 | S | 179 | 0.00 | 1.57 | - | - | - |
| Cartograph Wines Base | 12/26/25 | 56.2 1.9 | 1000 | 45.2 1.7 | 2357 | 47.5 1.9 | 97 0 | 75 5 | 7.6 2.4 | 34.3 5.0 | 0953 | SE | 142 | 0.26 | 12.36 | 0.031 0.014 | 113 60 | - |
| Cartograph Wines Remote | 12/26/25 | 57.5 2.2 | 1003 | 39.8 6.9 | 0001 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 12/26/25 | 57.6 2.7 | 1001 | 35.4 11.6 | 2358 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 12/26/25 | 56.8 2.7 | 1143 | 36.9 11.2 | 2352 | 44.2 3.4 | 98 4 | 62 3 | 5.4 3.3 | 28.4 6.3 | 1056 | SSE | 166 | 0.00 | 0.10 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 12/26/25 | 54.9 0.7 | 1205 | 44.2 1.8 | 2322 | 44.6 2.2 | 100 0 | 68 1 | 5.9 1.4 | 20.6 4.8 | 1140 | SW | 214 | 0.45 | 11.37 | 0.031 0.006 | 102 21 | 0 0 |
| Petaluma (Ranch 10) | 12/26/25 | 58.9 0.4 | 1049 | 39.2 7.6 | 2346 | 44.9 3.5 | 96 1 | 61 3 | 1.4 1.9 | 11.6 7.7 | 1340 | SW | 230 | 0.37 | 8.36 | 0.025 0.007 | 103 12 | 0 0 |
| Max | 59.0 | - | 45.2 | - | 47.5 | 100 | 75 | 11.5 | 37.6 | - | - | 0.69 | 15.32 | 0.036 | 124 | - | |
| Avg | - | - | - | - | 43.8 | - | - | 4.8 | - | - | - | - | - | - | - | - | |
| Min | 51.4 | - | 35.4 | - | 23.0 | 95 | 0 | 1.4 | 11.4 | - | - | 0.00 | 0.10 | 0.016 | 56 | - |