| 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) | 1/3/26 | 55.2 2.5 | 1136 | 49.2 0.2 | 0407 | 47.9 2.5 | 88 | 96 4 | 69 18 | 4.8 | 32.6 8.0 | 1258 | SSW | 193 | 0.53 | 24.58 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 1/3/26 | 51.8 2.0 | 1125 | 46.5 0.1 | 2356 | 46.1 2.0 | 92 | 100 0 | 74 15 | 21.1 | 62.7 1.5 | 1306 | SSW | 196 | 0.53 | 25.36 | 0.029 0.024 | 96 66 | 0 0 |
| Cloverdale-East (Ranch 83) | 1/3/26 | 59.7 0.5 | 1201 | 52.7 0.7 | 0528 | 51.0 0.9 | - | - | - | 6.6 | 22.6 5.9 | 1259 | S | 175 | 0.48 | 21.67 | 0.035 0.011 | 99 48 | 0 0 |
| Cloverdale-SE (Ranch 38) | 1/3/26 | 57.7 0.2 | 1203 | 52.3 1.0 | 0802 | 51.6 0.5 | 92 | 97 2 | 73 6 | 9.6 | 33.9 1.5 | 1344 | SSE | 154 | 0.65 | 23.11 | 0.029 0.008 | 90 43 | 0 0 |
| Geyserville-North (Hoffman) | 1/2/26 | 59.7 4.5 | 1122 | 52.7 3.6 | 1840 | 52.4 1.2 | 90 | 97 0 | 70 25 | 6.1 | 20.0 11.4 | 1441 | SSE | 161 | 0.00 | 0.00 | 0.024 0.014 | 40 7 | 0 0 |
| Geyserville (Ranch 3) | 1/3/26 | 60.1 1.0 | 1140 | 52.9 0.4 | 0440 | 53.3 0.2 | 94 | 100 0 | 66 3 | 4.7 | 21.0 2.1 | 1247 | SSE | 155 | 0.66 | 21.32 | 0.029 0.009 | 103 59 | 0 0 |
| Geyserville-East (Ranch 40) | 1/3/26 | 57.3 0.5 | 1146 | 52.1 0.9 | 0828 | 51.8 0.3 | 93 | 100 0 | 78 3 | 14.0 | 41.2 0.4 | 1303 | SSW | 204 | 0.43 | 21.30 | 0.031 0.003 | 106 61 | 0 0 |
| Geyserville-South (Nervo Station) | 1/3/26 | 59.2 0.8 | 1407 | 52.3 0.3 | 0759 | - | - | - | - | 3.9 | 22.2 1.0 | 1310 | SW | 216 | 0.28 | 15.85 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 1/3/26 | 59.5 0.0 | 1153 | 53.0 0.4 | 0739 | 51.4 0.5 | 86 | 95 5 | 67 3 | 4.2 | 24.4 4.8 | 1257 | S | 179 | 0.40 | 19.22 | 0.034 0.011 | 102 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) | 1/3/26 | 60.5 0.0 | 1050 | 52.3 0.5 | 0416 | 52.5 0.4 | 89 | 100 0 | 69 5 | 4.1 | 26.0 2.1 | 1344 | SSW | 194 | 0.55 | 19.73 | 0.031 0.007 | 83 36 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 1/3/26 | 59.4 0.3 | 1347 | 50.7 1.0 | 0527 | 51.4 0.2 | 90 | 100 0 | 68 3 | 5.4 | 26.6 3.6 | 1329 | SSE | 157 | 1.12 | 20.33 | 0.032 0.008 | 86 38 | - |
| Knights Valley (Bavarian Lion) | 1/3/26 | 59.2 0.5 | 1132 | 52.5 0.3 | 0442 | 50.6 0.5 | 84 | 94 3 | 67 1 | 5.2 | 23.2 2.1 | 1409 | SSW | 204 | 0.38 | 19.80 | 0.038 0.010 | 106 41 | - |
| Upper Dry Creek Valley | 1/3/26 | 60.8 2.8 | 1059 | 51.9 0.7 | 0439 | 51.5 1.3 | 88 | 97 1 | 61 12 | 3.1 | 17.9 0.5 | 1419 | SSE | 168 | 0.36 | 22.84 | 0.033 0.014 | 106 56 | - |
| Lower Dry Creek Valley | 1/3/26 | 61.3 1.3 | 1048 | 52.2 0.8 | 0510 | 52.3 1.3 | 88 | 100 0 | 63 5 | 5.4 | 27.5 8.2 | 1311 | S | 170 | 0.38 | 22.04 | 0.038 0.019 | 106 58 | 0 0 |
| Max | 61.3 | - | 53.0 | - | 53.3 | 94 | 100 | 78 | 21.1 | 62.7 | - | - | 1.12 | 25.36 | 0.038 | 106 | - | |
| Avg | - | - | - | - | 51.0 | 89 | - | - | 7.1 | - | - | - | - | - | - | - | - | |
| Min | 51.8 | - | 46.5 | - | 46.1 | 84 | 94 | 61 | 3.1 | 17.9 | - | - | 0.28 | 15.85 | 0.029 | 83 | - |
| 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) | 1/3/26 | 60.2 0.5 | 1225 | 52.4 0.3 | 0314 | - | - | 96 4 | 69 2 | 4.5 | 23.3 0.6 | 1214 | 1.56 | 15.08 | - | - | 0 |
| Windsor-NW (Ranch 8) | 1/3/26 | 60.8 1.6 | 1221 | 52.8 0.2 | 0254 | 50.8 0.3 | 83 | 85 2 | 75 2 | 0.9 | 24.8 6.4 | 1315 | 0.64 | 19.52 | 0.027 0.007 | 95 34 | - |
| Windsor-East (Ranch 16) | 1/3/26 | 60.7 0.9 | 1056 | 53.2 0.0 | 0811 | 52.3 0.4 | 87 | 95 0 | 69 3 | 5.8 | 24.8 5.8 | 1409 | 0.36 | 14.93 | 0.038 0.007 | 95 33 | 0 |
| Mark West-North (Ranch 14) | 1/3/26 | 61.0 1.2 | 1115 | 52.6 0.6 | 0353 | 52.1 0.1 | 87 | 96 1 | 66 3 | 4.3 | 19.6 2.6 | 1231 | 0.35 | 16.58 | 0.018 0.007 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 1/3/26 | 61.6 1.8 | 1157 | 51.0 1.6 | 0218 | 52.5 0.0 | 88 | 98 1 | 67 2 | 5.4 | 23.6 5.1 | 1305 | 0.28 | 12.07 | 0.042 0.017 | 126 63 | 0 |
| Fulton-NW (Ranch 5) | 1/3/26 | 61.1 1.3 | 1115 | 53.0 0.1 | 0806 | 52.5 26.7 | 87 | 96 4 | 68 65 | 7.1 | 24.9 1.8 | 1257 | 0.36 | 16.65 | 0.044 0.003 | 131 63 | 0 |
| Windsor-South (Laughlin Rd) | 1/3/26 | 62.3 2.9 | 1158 | 52.4 0.4 | 0158 | 51.5 14.3 | 84 | 92 8 | 66 65 | - | - | - | 0.26 | 16.12 | - | - | - |
| Fulton-SE (Barnes Rd) | 1/3/26 | 60.9 0.8 | 1243 | 53.1 0.6 | 0338 | 52.6 0.3 | 87 | 96 1 | 69 4 | 5.1 | 20.4 0.1 | 1236 | 0.53 | 16.09 | - | - | - |
| Fulton-SW (Ranch 21) | 1/3/26 | 60.7 1.6 | 1226 | 52.4 0.5 | 0336 | 51.8 36.2 | 86 | 100 0 | 69 68 | 7.5 | 29.4 7.7 | 1314 | 0.36 | 16.15 | 0.047 0.011 | 149 74 | - |
| Santa Rosa-NW (Goldfields) | 1/3/26 | 61.4 | 1225 | 49.4 | 0017 | 52.8 | 84 | 100 | 65 | 8.0 | 25.4 | 1413 | 2.32 | 17.11 | 0.075 | 211 | - |
| Goldfields Remote | 1/3/26 | 61.4 1.6 | 1200 | 51.8 1.1 | 0410 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 1/3/26 | 61.1 1.9 | 1201 | 51.9 1.4 | 0400 | 54.9 1.1 | 95 | 100 0 | 75 5 | 5.8 | 23.5 4.6 | 1359 | 0.36 | 14.44 | - | - | - |
| River Rd South (Denner Ranch) | 1/3/26 | 61.1 1.9 | 1215 | 51.6 0.6 | 0357 | 54.0 0.8 | 93 | 100 0 | 69 1 | 10.1 | 33.1 2.4 | 1239 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 1/3/26 | 61.2 1.5 | 1205 | 51.3 1.6 | 0353 | 52.2 0.2 | 86 | 98 2 | 67 0 | 5.6 | 25.1 0.9 | 1335 | 0.62 | 13.54 | 0.022 0.015 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 1/3/26 | 61.9 2.8 | 1147 | 51.8 1.3 | 0339 | 52.7 0.2 | 87 | 97 2 | 67 0 | - | - | - | 1.72 | 14.92 | - | - | - |
| Guerneville Rd West (Balletto) | 1/3/26 | 61.0 1.4 | 1357 | 51.7 1.8 | 0358 | 53.5 0.1 | 89 | 99 1 | 73 2 | 6.6 | 29.5 7.7 | 1225 | 0.28 | 15.14 | - | - | - |
| Sanchietti Ranch | 1/3/26 | 61.8 2.0 | 1359 | 53.1 1.0 | 0357 | 54.6 0.3 | - | 98 1 | 78 2 | 7.5 | 29.2 0.8 | 1437 | 0.28 | 16.08 | - | - | - |
| Occidental Rd (Sebastopol) | 1/3/26 | 61.0 13.9 | 1403 | 50.9 8.5 | 0320 | 55.3 0.9 | 97 | 100 0 | 76 6 | 7.5 | 31.4 4.6 | 1220 | 0.02 | 6.63 | - | - | - |
| Lower Westside Rd (Ranch 12) | 1/3/26 | 61.0 1.3 | 1235 | 52.6 0.3 | 0310 | 52.4 0.4 | 88 | 96 4 | 65 1 | 2.8 | 15.4 0.6 | 1429 | 0.78 | 18.96 | - | - | 0 |
| Guerneville (Laughlin Rd) | 1/3/26 | 62.2 4.8 | 1152 | 52.3 0.9 | 0413 | 51.9 1.0 | 84 | 97 1 | 63 19 | 4.9 | 27.0 4.3 | 1143 | 0.03 | 25.42 | - | - | - |
| Korbel (Winery) | 1/3/26 | 61.6 3.8 | 1152 | 53.3 0.0 | 0245 | 51.5 1.3 | 81 | 95 5 | 64 12 | 4.0 | 25.9 11.0 | 1434 | 0.03 | 23.06 | - | - | - |
| Forestville (Shone Farms) | 1/3/26 | 62.2 2.5 | 1208 | 52.5 0.8 | 0258 | 52.4 0.0 | 86 | 95 4 | 67 3 | 6.0 | 29.6 0.8 | 1329 | 0.23 | 20.37 | 0.046 0.024 | 135 83 | 0 |
| Forestville-NE (Ranch 30) | 1/3/26 | 61.9 3.3 | 1207 | 51.3 0.9 | 0324 | 53.2 0.2 | 90 | 100 0 | 72 4 | 6.8 | 28.8 3.5 | 1225 | 0.13 | 18.71 | 0.042 0.022 | 153 97 | - |
| Green Valley Vineyard | 1/3/26 | 60.9 2.4 | 1221 | 52.0 0.4 | 0204 | 52.3 0.1 | 87 | 95 4 | 68 4 | 7.7 | 37.7 10.7 | 1345 | 0.15 | 22.88 | 0.023 0.015 | 0 0 | - |
| Green Valley (Sanchietti) | 1/3/26 | 62.3 2.8 | 1341 | 53.6 0.9 | 0247 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 1/3/26 | 61.3 2.0 | 1219 | 53.4 0.7 | 0318 | 53.6 0.2 | 88 | 97 2 | 73 3 | - | - | - | 0.14 | 20.45 | - | - | - |
| Graton-South (Mill Station Rd) | 1/3/26 | 60.7 1.8 | 1347 | 53.3 0.8 | 0156 | 52.9 0.1 | 86 | 94 6 | 71 1 | 4.9 | 17.6 0.6 | 1431 | 0.19 | 18.41 | - | - | 0 |
| Occidental (Horseshoe Bend) | 1/3/26 | 59.2 3.1 | 1218 | 51.2 0.4 | 0156 | 52.9 0.4 | - | 100 0 | 74 5 | - | - | - | 0.10 | 15.16 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 1/3/26 | 61.1 1.5 | 1101 | 51.9 0.6 | 0202 | 54.1 0.6 | 91 | 98 1 | 76 1 | 2.7 | 17.1 1.8 | 1341 | 0.01 | 7.03 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 1/3/26 | 58.6 1.4 | 1222 | 52.5 0.4 | 0156 | 53.5 0.7 | 93 | 98 2 | 81 1 | 7.7 | 24.1 1.7 | 1359 | 0.25 | 18.76 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 12/31/25 | 57.8 3.0 | 0451 | 46.7 2.8 | 2348 | 37.5 3.5 | 65 | 97 39 | 27 5 | 9.4 | 23.5 5.9 | 1500 | 0.94 | 29.34 | 0.050 0.020 | 45 154 | - |
| Max | 62.3 | - | 53.6 | - | 55.3 | 97 | 100 | 81 | 10.1 | 37.7 | - | 2.32 | 25.42 | 0.075 | 211 | - | |
| Avg | - | - | - | - | 52.8 | 88 | - | - | 5.8 | - | - | - | - | - | - | - | |
| Min | 58.6 | - | 49.4 | - | 50.8 | 81 | 85 | 63 | 0.9 | 15.4 | - | 0.01 | 6.63 | 0.018 | 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 | 1/3/26 | 58.0 2.3 | 1140 | 50.4 0.2 | 0650 | 50.7 1.0 | 98 0 | 70 1 | 2.8 2.1 | 17.2 2.2 | 1304 | SSE | 150 | 0.00 | 5.41 | 0.027 0.001 | 107 33 | - |
| Lower Bennett Valley | 1/3/26 | 59.5 0.4 | 1110 | 53.1 0.2 | 0625 | 52.0 0.3 | 96 4 | 69 2 | 5.0 0.1 | 17.9 3.5 | 1359 | WNW | 291 | 0.93 | 16.16 | 0.033 0.001 | 91 7 | 0 0 |
| Kenwood (Wildwood) | 1/3/26 | 61.2 2.2 | 1231 | 51.7 0.4 | 0355 | 52.0 0.4 | 100 0 | 62 7 | 4.7 1.2 | 21.8 0.2 | 1434 | WSW | 241 | 1.13 | 18.46 | 0.038 0.010 | 135 45 | - |
| Sonoma Valley (Bedrock) | 1/3/26 | 60.5 0.6 | 1233 | 52.5 1.9 | 0658 | 50.8 0.2 | 96 2 | 60 3 | - | - | - | - | 0.03 | 9.08 | - | - | - |
| Sonoma-West (Arnold) | 1/3/26 | 61.5 0.6 | 1159 | 53.2 1.4 | 0312 | 52.4 0.4 | 100 0 | 64 2 | 4.0 1.5 | 20.7 4.1 | 1452 | SSW | 198 | 0.96 | 12.70 | 0.037 0.006 | 129 24 | - |
| Sonoma Valley HS | 1/3/26 | 61.8 0.4 | 1213 | 53.4 1.3 | 0246 | 54.2 0.5 | 100 0 | 68 2 | 2.6 0.5 | 15.1 1.9 | 1324 | SSE | 155 | 0.02 | 4.88 | 0.029 0.001 | 119 24 | - |
| Sonoma East (Bundschu01) | 1/3/26 | 62.5 0.2 | 1212 | 53.6 1.4 | 0204 | 52.3 0.2 | 95 1 | 62 3 | 5.0 0.3 | 20.8 8.1 | 1419 | SSW | 202 | 0.00 | 0.13 | 0.041 0.002 | 142 40 | - |
| 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) | 1/3/26 | 63.1 0.1 | 1128 | 53.6 1.6 | 0141 | 52.4 0.1 | 94 1 | 63 1 | 4.5 1.9 | 18.8 1.0 | 1357 | S | 178 | 0.97 | 9.97 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 1/3/26 | 62.9 0.8 | 1241 | 53.6 2.3 | 0138 | 52.5 0.3 | 94 2 | 65 0 | 7.0 3.0 | 23.3 4.0 | 1448 | SSW | 196 | 0.76 | 12.45 | 0.046 0.011 | 156 52 | - |
| Carneros (Ranch 71) | 1/3/26 | 62.3 2.2 | 1242 | 52.4 0.4 | 0137 | 52.4 0.4 | 97 3 | 67 1 | 6.4 0.2 | 22.0 0.1 | 1447 | SSW | 194 | 0.55 | 10.74 | 0.040 0.005 | 147 54 | 0 0 |
| Carneros Upper (Ranch 81) | 1/3/26 | 61.0 1.0 | 1250 | 52.2 0.5 | 0134 | 30.5 13.3 | - | - | 13.2 7.0 | 31.4 10.5 | 1434 | S | 191 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 1/3/26 | 61.8 1.7 | 1233 | 52.3 0.1 | 0142 | 21.8 38.1 | 100 0 | 0 0 | 4.2 2.2 | 20.2 6.3 | 1423 | S | 178 | 0.63 | 10.99 | 0.043 0.000 | 98 35 | - |
| Rohnert Park-West (Stony Point) | 1/3/26 | 61.9 2.1 | 1209 | 52.9 0.0 | 0208 | 53.4 0.3 | 98 2 | 73 1 | 6.7 0.8 | 25.9 3.0 | 1355 | S | 184 | 0.00 | 1.57 | - | - | - |
| Cartograph Wines Base | 1/3/26 | 60.2 2.1 | 1130 | 53.3 0.2 | 0612 | 53.8 0.6 | 98 2 | 78 1 | 8.5 2.3 | 30.0 3.8 | 1427 | S | 175 | 0.39 | 14.88 | 0.039 0.014 | 144 62 | - |
| Cartograph Wines Remote | 1/3/26 | 62.6 3.1 | 1137 | 50.1 1.2 | 0152 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 1/3/26 | 62.1 2.3 | 1130 | 52.1 0.1 | 0149 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 1/3/26 | 60.8 1.2 | 1158 | 53.3 0.3 | 0654 | 51.9 0.6 | 95 2 | 65 1 | 3.2 4.5 | 23.8 0.7 | 1405 | S | 171 | 0.00 | 0.10 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 1/3/26 | 58.8 0.1 | 1206 | 52.1 0.4 | 0642 | 51.6 0.4 | 100 0 | 67 1 | 4.9 0.9 | 18.2 5.7 | 1350 | SSE | 155 | 0.35 | 13.21 | 0.035 0.004 | 127 27 | 0 0 |
| Petaluma (Ranch 10) | 1/3/26 | 65.7 5.6 | 1104 | 53.0 1.0 | 2133 | 52.4 0.6 | 100 0 | 58 11 | 1.5 1.4 | 20.4 11.0 | 1447 | WSW | 257 | 0.71 | 10.21 | 0.037 0.014 | 140 65 | 0 0 |
| Max | 65.7 | - | 53.6 | - | 54.2 | 100 | 78 | 13.2 | 31.4 | - | - | 1.13 | 18.46 | 0.046 | 156 | - | |
| Avg | - | - | - | - | 49.3 | - | - | 5.3 | - | - | - | - | - | - | - | - | |
| Min | 58.0 | - | 50.1 | - | 21.8 | 94 | 0 | 1.5 | 15.1 | - | - | 0.00 | 0.10 | 0.027 | 91 | - |