| 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) | 1/27/26 | 53.8 6.3 | 1244 | 43.5 2.7 | 0619 | 42.0 7.7 | 79 | 100 18 | 53 21 | 2.8 | 13.4 1.4 | 1850 | E | 98 | 0.31 | 29.13 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 1/27/26 | 51.1 8.6 | 1251 | 41.0 1.5 | 0621 | 39.8 7.5 | 80 | 100 16 | 56 22 | 8.9 | 23.9 4.4 | 1019 | SE | 132 | 0.28 | 29.84 | 0.043 0.047 | 124 191 | 0 0 |
| Cloverdale-East (Ranch 83) | 1/27/26 | 57.0 5.3 | 1401 | 31.2 2.1 | 0724 | 10.3 22.1 | - | - | - | 1.7 | 9.6 4.2 | 1519 | SSW | 203 | 0.19 | 25.20 | 0.037 0.030 | 130 142 | 0 0 |
| Cloverdale-SE (Ranch 38) | 1/27/26 | 55.8 5.6 | 1539 | 38.7 4.8 | 0740 | 44.1 7.0 | 86 | 98 7 | 65 24 | 3.0 | 15.0 0.4 | 1848 | NNE | 30 | 0.17 | 26.66 | 0.035 0.034 | 127 140 | 0 0 |
| Geyserville-North (Hoffman) | 1/27/26 | 57.4 3.1 | 1402 | 32.8 5.5 | 0725 | 42.4 7.2 | 87 | 97 1 | 64 18 | 1.9 | 8.5 0.8 | 1914 | SE | 139 | 0.00 | 25.50 | 0.033 0.027 | 122 134 | 0 0 |
| Geyserville (Ranch 3) | 1/27/26 | 57.3 3.2 | 1355 | 33.9 4.8 | 0718 | 43.2 7.2 | 89 | 100 0 | 60 19 | 1.9 | 8.8 1.1 | 1918 | ESE | 122 | 0.10 | 25.54 | 0.034 0.023 | 132 128 | 0 0 |
| Geyserville-East (Ranch 40) | 1/27/26 | 56.4 3.8 | 1312 | 37.3 1.0 | 0623 | 44.5 5.5 | 85 | 100 10 | 63 18 | 5.1 | 18.8 3.9 | 1923 | SE | 126 | 0.11 | 25.98 | 0.040 0.028 | 152 136 | 0 0 |
| Geyserville-South (Nervo Station) | 1/27/26 | 56.3 4.6 | 1411 | 36.5 4.8 | 0647 | - | - | - | - | 1.4 | 6.8 1.3 | 2005 | S | 177 | 0.11 | 19.52 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 1/27/26 | 58.3 6.9 | 1223 | 32.1 5.8 | 0711 | 42.1 7.3 | 88 | 100 0 | 58 19 | 1.1 | 7.2 0.9 | 1829 | ENE | 62 | 0.12 | 23.76 | 0.031 0.018 | 134 111 | 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) | 1/27/26 | 59.4 5.4 | 1315 | 31.8 5.3 | 0458 | 42.1 7.1 | 87 | 100 0 | 56 13 | 1.3 | 8.6 1.8 | 1956 | NE | 39 | 0.13 | 22.92 | 0.030 0.022 | 122 121 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 1/27/26 | 58.9 2.5 | 1116 | 31.5 4.8 | 0721 | 41.4 6.3 | 87 | 100 0 | 53 7 | 0.5 | 4.6 2.3 | 0631 | NE | 49 | 0.11 | 24.27 | 0.029 0.022 | 124 114 | - |
| Knights Valley (Bavarian Lion) | 1/27/26 | 60.0 3.8 | 1231 | 32.0 5.3 | 0729 | 40.7 5.9 | 84 | 98 0 | 44 1 | 1.9 | 11.4 0.7 | 1318 | SSE | 157 | 0.15 | 22.79 | 0.043 0.014 | 156 113 | - |
| Upper Dry Creek Valley | 1/27/26 | 56.7 4.1 | 1249 | 33.5 4.4 | 0728 | 42.0 6.4 | 87 | 98 0 | 56 17 | 1.4 | 9.6 0.1 | 1325 | SE | 136 | 0.14 | 27.60 | 0.034 0.031 | 134 152 | - |
| Lower Dry Creek Valley | 1/27/26 | 57.6 4.3 | 1052 | 32.8 4.5 | 0706 | 42.5 6.6 | 88 | 100 0 | 56 18 | 1.1 | 7.7 2.3 | 1213 | N | 355 | 0.11 | 27.17 | 0.034 0.025 | 136 127 | 0 0 |
| Max | 60.0 | - | 43.5 | - | 44.5 | 89 | 100 | 65 | 8.9 | 23.9 | - | - | 0.31 | 29.84 | 0.043 | 156 | - | |
| Avg | - | - | - | - | 39.8 | 85 | - | - | 2.4 | - | - | - | - | - | - | - | - | |
| Min | 51.1 | - | 31.2 | - | 10.3 | 79 | 97 | 44 | 0.5 | 4.6 | - | - | 0.00 | 19.52 | 0.029 | 122 | - |
| 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) | 1/27/26 | 57.6 6.5 | 1326 | 33.4 4.7 | 0724 | - | - | 100 0 | 58 13 | 0.4 | 6.5 2.8 | 1853 | 0.12 | 19.55 | - | - | 0 |
| Windsor-NW (Ranch 8) | 1/27/26 | 57.5 6.0 | 1525 | 36.9 4.9 | 0743 | 42.1 4.4 | 82 | 88 0 | 67 15 | 0.7 | 6.5 1.6 | 1854 | 0.13 | 23.59 | 0.032 0.026 | 137 132 | - |
| Windsor-East (Ranch 16) | 1/27/26 | 58.7 4.5 | 1547 | 32.9 4.7 | 0729 | 43.0 5.8 | 87 | 100 0 | 60 16 | 1.3 | 9.3 0.6 | 2006 | 0.10 | 17.42 | 0.033 0.027 | 138 139 | 0 |
| Mark West-North (Ranch 14) | 1/27/26 | 58.3 5.3 | 1616 | 34.4 4.7 | 0517 | 42.7 5.9 | 85 | 98 0 | 58 15 | 0.5 | 5.7 1.8 | 1606 | 0.10 | 19.06 | 0.004 0.005 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 1/27/26 | 58.0 5.1 | 1544 | 32.7 4.0 | 0727 | 42.2 5.8 | 88 | 99 0 | 60 15 | 0.9 | 5.3 3.0 | 1102 | 0.14 | 15.45 | 0.033 0.026 | 142 138 | 0 |
| Fulton-NW (Ranch 5) | 1/27/26 | 58.3 2.6 | 1553 | 32.7 3.7 | 0726 | 29.3 3.3 | 70 | 100 0 | 3 0 | 1.0 | 9.1 1.3 | 1606 | 0.12 | 19.04 | 0.034 0.024 | 147 123 | 0 |
| Windsor-South (Laughlin Rd) | 1/27/26 | 57.8 4.5 | 1529 | 34.5 3.1 | 0455 | 33.7 4.1 | 77 | 100 0 | 0 46 | - | - | - | 0.13 | 18.97 | - | - | - |
| Fulton-SE (Barnes Rd) | 1/27/26 | 59.1 2.8 | 1552 | 33.8 4.5 | 0515 | 43.2 5.6 | 86 | 98 0 | 55 7 | 0.4 | 12.4 5.0 | 1558 | 0.16 | 18.32 | - | - | - |
| Fulton-SW (Ranch 21) | 1/27/26 | 57.8 3.3 | 1343 | 34.0 3.8 | 0722 | 6.0 0.6 | 54 | 100 0 | 0 0 | 1.8 | 7.9 0.3 | 2001 | 0.13 | 18.57 | 0.038 0.025 | 137 137 | - |
| Santa Rosa-NW (Goldfields) | 1/27/26 | 58.2 4.8 | 1339 | 34.6 4.0 | 0452 | 43.5 5.5 | 87 | 100 0 | 56 12 | 1.8 | 7.9 1.2 | 2004 | 0.14 | 19.55 | 0.035 0.021 | 138 114 | - |
| Goldfields Remote | 1/27/26 | 58.5 3.6 | 1340 | 33.3 3.5 | 0657 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 1/27/26 | 58.1 2.6 | 1344 | 32.7 3.2 | 0532 | 43.9 4.9 | 92 | 100 0 | 64 10 | 1.0 | 7.2 0.3 | 1608 | 0.16 | 16.83 | - | - | - |
| River Rd South (Denner Ranch) | 1/27/26 | 58.5 2.4 | 1338 | 33.1 2.8 | 0638 | 43.6 4.8 | 91 | 100 0 | 63 13 | 1.8 | 8.6 2.4 | 1544 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 1/27/26 | 58.2 3.1 | 1550 | 34.0 3.8 | 0726 | 42.9 5.1 | 87 | 100 0 | 59 13 | 0.8 | 6.6 1.7 | 1452 | 0.01 | 15.77 | 0.005 0.005 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 1/27/26 | 58.0 2.3 | 1410 | 35.0 4.2 | 0738 | 43.5 4.9 | 89 | 100 0 | 60 12 | - | - | - | 0.17 | 17.68 | - | - | - |
| Guerneville Rd West (Balletto) | 1/27/26 | 57.9 2.5 | 1343 | 32.7 3.5 | 0744 | 43.4 5.1 | 91 | 100 0 | 65 11 | 1.6 | 8.2 1.5 | 1552 | 0.17 | 17.59 | - | - | - |
| Sanchietti Ranch | 1/27/26 | 58.3 2.2 | 1315 | 34.6 3.6 | 0742 | 44.7 4.8 | - | 100 0 | 69 12 | 1.8 | 8.4 3.0 | 1332 | 0.14 | 18.46 | - | - | - |
| Occidental Rd (Sebastopol) | 1/27/26 | 57.2 4.8 | 1319 | 33.1 3.8 | 0453 | 46.3 3.7 | 100 | 100 0 | 100 17 | 1.2 | 7.9 0.7 | 1320 | 0.01 | 6.78 | - | - | - |
| Lower Westside Rd (Ranch 12) | 1/27/26 | 58.4 6.3 | 1322 | 35.7 4.1 | 0739 | 42.8 6.0 | 83 | 99 1 | 55 18 | 0.4 | 3.6 2.3 | 1333 | 0.13 | 22.96 | - | - | 0 |
| Guerneville (Laughlin Rd) | 1/27/26 | 57.3 4.0 | 1258 | 36.5 1.8 | 0748 | 44.0 4.3 | 91 | 98 0 | 59 14 | 0.4 | 4.9 4.5 | 1257 | 0.43 | 31.35 | - | - | - |
| Korbel (Winery) | 1/27/26 | 57.1 3.8 | 1310 | 37.8 2.2 | 0751 | 44.6 4.2 | 92 | 100 0 | 59 13 | 0.6 | 8.8 1.4 | 1147 | 0.30 | 28.73 | - | - | - |
| Forestville (Shone Farms) | 1/27/26 | 59.0 3.4 | 1519 | 34.0 2.8 | 0445 | 43.3 5.1 | 87 | 98 0 | 63 15 | 1.1 | 8.4 1.1 | 1136 | 0.16 | 24.36 | 0.035 0.023 | 139 130 | 0 |
| Forestville-NE (Ranch 30) | 1/27/26 | 57.2 5.1 | 1521 | 34.1 0.0 | 0613 | 43.7 3.9 | 91 | 100 0 | 69 16 | 1.1 | 9.1 0.2 | 1555 | 0.16 | 22.68 | 0.033 0.026 | 141 129 | - |
| Green Valley Vineyard | 1/27/26 | 57.3 3.4 | 1401 | 36.9 5.4 | 0603 | 43.9 5.3 | 88 | 99 0 | 60 13 | 1.3 | 7.7 1.8 | 1214 | 0.28 | 27.54 | 0.006 0.004 | 0 0 | - |
| Green Valley (Sanchietti) | 1/27/26 | 58.4 4.2 | 1521 | 32.8 0.8 | 0733 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 1/27/26 | 57.6 3.4 | 1523 | 32.5 1.4 | 0740 | 43.0 4.8 | 90 | 100 0 | 65 13 | - | - | - | 0.25 | 24.73 | - | - | - |
| Graton-South (Mill Station Rd) | 1/27/26 | 57.6 2.6 | 1321 | 32.8 2.2 | 0751 | 42.4 4.7 | 89 | 100 0 | 60 14 | 0.3 | 6.2 0.1 | 1252 | 0.23 | 21.90 | - | - | 0 |
| Occidental (Horseshoe Bend) | 1/27/26 | 55.8 3.0 | 1348 | 43.5 3.2 | 0624 | 44.8 4.6 | - | 100 6 | 62 16 | - | - | - | 0.00 | 16.10 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 1/27/26 | 58.0 1.8 | 1527 | 32.8 2.6 | 0511 | 43.1 5.1 | 90 | 100 0 | 64 11 | 1.0 | 7.7 3.2 | 1322 | 0.32 | 7.42 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 1/27/26 | 56.2 1.8 | 1230 | 39.0 3.4 | 0647 | 45.6 4.5 | 91 | 100 0 | 68 11 | 0.4 | 7.0 2.5 | 1333 | 0.23 | 21.70 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 1/27/26 | 52.3 6.2 | 1229 | 43.5 1.1 | 0650 | 42.9 8.0 | 82 | 97 16 | 53 12 | 4.9 | 16.3 1.8 | 0916 | 0.60 | 38.15 | 0.032 0.049 | 107 187 | - |
| Max | 59.1 | - | 43.5 | - | 46.3 | 100 | 100 | 100 | 4.9 | 16.3 | - | 0.60 | 38.15 | 0.038 | 147 | - | |
| Avg | - | - | - | - | 41.4 | 86 | - | - | 1.2 | - | - | - | - | - | - | - | |
| Min | 52.3 | - | 32.5 | - | 6.0 | 54 | 88 | 0 | 0.3 | 3.6 | - | 0.00 | 6.78 | 0.004 | 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 | 1/27/26 | 58.8 0.7 | 1126 | 40.8 6.2 | 0712 | 40.7 5.5 | 96 6 | 40 3 | 2.1 0.2 | 10.8 3.5 | 2027 | SSE | 160 | 0.00 | 5.41 | 0.044 0.024 | 164 152 | - |
| Lower Bennett Valley | 1/27/26 | 60.4 0.4 | 1112 | 31.3 3.2 | 0523 | 42.8 6.1 | 100 0 | 49 7 | 2.1 0.6 | 10.7 1.6 | 1337 | S | 177 | 0.13 | 17.65 | 0.041 0.020 | 154 125 | 0 0 |
| Kenwood (Wildwood) | 1/27/26 | 58.3 1.2 | 1141 | 34.5 2.8 | 0604 | 42.8 4.5 | 100 0 | 56 5 | 2.2 0.3 | 9.9 0.1 | 2022 | SE | 138 | 0.14 | 21.24 | 0.042 0.015 | 169 78 | - |
| Sonoma Valley (Bedrock) | 1/27/26 | 57.3 1.6 | 1345 | 31.2 0.4 | 0631 | 40.3 3.9 | 98 0 | 52 4 | - | - | - | - | 0.13 | 17.13 | - | - | - |
| Sonoma-West (Arnold) | 1/27/26 | 59.4 2.5 | 1345 | 32.9 0.4 | 0642 | 42.0 3.8 | 100 0 | 54 7 | 1.3 0.2 | 9.1 0.6 | 1211 | SSW | 198 | 0.12 | 14.41 | 0.043 0.029 | 190 131 | - |
| Sonoma Valley HS | 1/27/26 | 58.1 1.6 | 1603 | 33.7 0.5 | 0746 | 43.4 3.3 | 100 0 | 58 3 | 0.7 0.4 | 6.5 2.2 | 2028 | ENE | 70 | 0.00 | 5.13 | 0.038 0.021 | 174 107 | - |
| Sonoma East (Bundschu01) | 1/27/26 | 60.1 0.3 | 1147 | 33.1 0.6 | 0749 | 41.8 3.8 | 98 0 | 49 2 | 1.6 0.5 | 11.4 0.0 | 1209 | SSE | 157 | 0.11 | 11.76 | 0.045 0.023 | 184 116 | - |
| Schellville (Sasaki) | 1/20/26 | 53.6 10.2 | 1425 | 36.7 3.9 | 0123 | 42.3 2.2 | 97 1 | 75 26 | 1.3 0.0 | 7.1 1.7 | 0937 | NNE | 26 | 0.00 | 0.00 | - | - | 0 0 |
| Sonoma-SE (Napoli) | 1/27/26 | 60.6 1.8 | 1150 | 33.3 0.5 | 0723 | 42.0 3.7 | 97 0 | 51 8 | 0.7 0.6 | 10.1 0.3 | 1216 | SSE | 159 | 0.08 | 11.04 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 1/27/26 | 59.1 1.2 | 1347 | 32.9 1.0 | 0723 | 41.8 3.3 | 98 0 | 52 5 | 2.5 0.3 | 12.8 0.1 | 1122 | SE | 136 | 0.11 | 14.06 | 0.048 0.025 | 194 120 | - |
| Carneros (Ranch 71) | 1/27/26 | 57.5 0.9 | 1551 | 40.4 0.8 | 0350 | 43.4 2.9 | 94 1 | 54 3 | 2.9 0.2 | 12.2 0.4 | 1135 | E | 90 | 0.10 | 12.08 | 0.047 0.016 | 179 102 | 0 0 |
| Carneros Upper (Ranch 81) | 1/27/26 | 60.4 0.8 | 1140 | 42.3 2.5 | 0707 | 36.3 2.9 | - | - | 3.1 0.3 | 13.4 1.5 | 1148 | SSE | 156 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 1/27/26 | 58.8 1.6 | 1157 | 35.1 0.1 | 0724 | 41.7 3.8 | 100 0 | 0 0 | 1.4 0.2 | 10.4 1.1 | 1142 | SSE | 167 | 0.09 | 12.88 | 0.036 0.011 | 131 46 | - |
| Rohnert Park-West (Stony Point) | 1/27/26 | 57.4 1.9 | 1318 | 33.0 2.7 | 0458 | 42.9 4.7 | 99 0 | 66 8 | 1.5 0.1 | 10.8 2.0 | 1246 | SE | 125 | 0.13 | 1.71 | - | - | - |
| Cartograph Wines Base | 1/27/26 | 55.7 2.1 | 1533 | 36.8 2.7 | 0816 | 45.4 3.7 | 100 0 | 72 6 | 2.5 0.5 | 11.5 3.9 | 1114 | ESE | 116 | 0.15 | 17.57 | 0.036 0.018 | 152 122 | - |
| Cartograph Wines Remote | 1/27/26 | 57.8 0.6 | 1058 | 32.8 2.3 | 0727 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 1/27/26 | 57.4 2.7 | 1238 | 30.7 3.3 | 0444 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 1/27/26 | 58.7 0.2 | 1308 | 34.5 2.9 | 0516 | 43.2 4.7 | 98 0 | 52 3 | 3.7 0.5 | 14.4 2.6 | 1156 | ESE | 120 | 0.01 | 15.59 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 1/27/26 | 60.0 1.2 | 1343 | 35.4 3.2 | 0722 | 44.2 5.2 | 100 0 | 52 5 | 1.2 0.0 | 8.7 0.9 | 1621 | E | 93 | 0.13 | 14.93 | 0.038 0.026 | 150 138 | 0 0 |
| Petaluma (Ranch 10) | 1/27/26 | 59.4 2.6 | 1339 | 39.5 2.3 | 0541 | 45.0 4.4 | 96 4 | 56 7 | 1.7 0.2 | 7.4 1.0 | 0926 | SE | 146 | 0.08 | 11.64 | 0.034 0.020 | 131 101 | 0 0 |
| Max | 60.6 | - | 42.3 | - | 45.4 | 100 | 72 | 3.7 | 14.4 | - | - | 0.15 | 21.24 | 0.048 | 194 | - | |
| Avg | - | - | - | - | 42.3 | - | - | 1.9 | - | - | - | - | - | - | - | - | |
| Min | 55.7 | - | 30.7 | - | 36.3 | 94 | 0 | 0.7 | 6.5 | - | - | 0.00 | 1.71 | 0.034 | 131 | - |