| 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) | 12/25/25 | 51.4 5.7 | 0300 | 43.5 2.9 | 0947 | 43.8 3.8 | 87 | 95 5 | 73 9 | 6.5 | 28.0 5.9 | 0033 | SE | 144 | 1.67 | 21.06 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 12/25/25 | 48.2 7.1 | 0257 | 40.2 2.6 | 0956 | 42.2 4.6 | 92 | 100 0 | 72 4 | 27.5 | 81.3 4.2 | 0127 | SSE | 164 | 1.67 | 21.60 | 0.020 0.017 | 66 118 | 0 0 |
| Cloverdale-East (Ranch 83) | 12/25/25 | 54.4 5.5 | 0035 | 47.4 2.1 | 1100 | 47.0 2.9 | - | - | - | 7.6 | 36.8 3.0 | 0151 | SSE | 149 | 1.89 | 18.24 | 0.026 0.023 | 72 110 | 0 0 |
| Cloverdale-SE (Ranch 38) | 12/25/25 | 53.6 5.7 | 1413 | 46.3 3.0 | 1046 | 47.5 3.0 | 92 | 98 1 | 79 16 | 11.8 | 52.1 7.8 | 0045 | SSE | 165 | 2.12 | 19.34 | 0.021 0.027 | 74 116 | 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) | 12/25/25 | 55.2 4.5 | 1041 | 48.6 1.9 | 2359 | 49.1 2.6 | 91 | 100 0 | 70 8 | 6.0 | 25.2 0.9 | 0118 | SE | 132 | 2.19 | 17.21 | 0.026 0.014 | 88 61 | 0 0 |
| Geyserville-East (Ranch 40) | 12/25/25 | 53.6 5.4 | 1423 | 46.7 2.4 | 1917 | 47.6 3.0 | 91 | 99 1 | 75 9 | 17.4 | 62.0 5.5 | 0052 | S | 180 | 1.78 | 17.02 | 0.030 0.018 | 89 95 | 0 0 |
| Geyserville-South (Nervo Station) | 12/25/25 | 55.4 4.1 | 1426 | 47.6 2.1 | 2315 | - | - | - | - | 5.7 | 24.5 3.4 | 0104 | S | 174 | 1.20 | 12.50 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 12/25/25 | 56.6 5.7 | 1355 | 48.6 2.4 | 1922 | 46.8 2.7 | 82 | 93 0 | 62 9 | 4.3 | 26.3 0.7 | 0138 | SE | 134 | 1.26 | 15.47 | 0.031 0.012 | 79 67 | 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) | 12/25/25 | 56.6 5.8 | 1320 | 48.7 2.8 | 1852 | 48.1 2.4 | 85 | 95 1 | 65 12 | 3.7 | 29.6 5.0 | 0226 | WSW | 245 | 1.42 | 16.14 | 0.023 0.020 | 59 85 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 12/25/25 | 55.5 6.6 | 1355 | 47.4 3.1 | 2359 | 47.3 2.3 | 86 | 97 3 | 66 13 | 5.7 | 30.3 0.1 | 0226 | SSE | 159 | 1.33 | 15.94 | 0.028 0.018 | 60 86 | - |
| Knights Valley (Bavarian Lion) | 12/25/25 | 55.5 5.4 | 0004 | 48.0 3.0 | 1841 | 46.3 2.9 | 81 | 91 3 | 63 11 | 6.8 | 29.6 0.0 | 0157 | SE | 140 | 1.42 | 16.60 | 0.035 0.011 | 94 69 | - |
| Upper Dry Creek Valley | 12/25/25 | 56.1 4.1 | 0031 | 47.7 1.9 | 2330 | 47.6 2.5 | 87 | 95 2 | 65 8 | 4.9 | 33.4 7.9 | 0039 | S | 184 | 2.14 | 18.81 | 0.023 0.028 | 80 114 | - |
| Lower Dry Creek Valley | 12/25/25 | 56.2 5.3 | 1422 | 48.0 2.4 | 2322 | 48.4 2.5 | 86 | 100 0 | 68 14 | 6.5 | 28.2 1.8 | 0111 | SSE | 161 | 1.60 | 17.49 | 0.030 0.017 | 74 83 | 0 0 |
| Max | 56.6 | - | 48.7 | - | 49.1 | 92 | 100 | 79 | 27.5 | 81.3 | - | - | 2.19 | 21.60 | 0.035 | 94 | - | |
| Avg | - | - | - | - | 46.8 | 87 | - | - | 8.8 | - | - | - | - | - | - | - | - | |
| Min | 48.2 | - | 40.2 | - | 42.2 | 81 | 91 | 62 | 3.7 | 24.5 | - | - | 1.20 | 12.50 | 0.020 | 59 | - |
| 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) | 12/25/25 | 57.5 4.7 | 1325 | 48.5 1.6 | 2315 | - | - | 95 1 | 65 9 | 6.6 | 28.9 1.7 | 0124 | 1.35 | 10.20 | - | - | 0 |
| Windsor-NW (Ranch 8) | 12/25/25 | 58.2 4.9 | 1322 | 48.5 2.3 | 2234 | 47.5 2.7 | 83 | 85 0 | 71 8 | 4.6 | 24.6 5.7 | 0118 | 1.01 | 15.60 | 0.032 0.018 | 100 79 | - |
| Windsor-East (Ranch 16) | 12/25/25 | 58.8 1.9 | 1323 | 48.4 2.3 | 0842 | 47.9 2.4 | 84 | 94 0 | 61 6 | 7.7 | 29.7 1.6 | 0159 | 1.15 | 11.93 | 0.036 0.012 | 97 59 | 0 |
| Mark West-North (Ranch 14) | 12/25/25 | 59.2 3.8 | 1324 | 48.2 2.8 | 0846 | 47.7 2.2 | 84 | 95 0 | 57 6 | 4.5 | 21.4 7.9 | 0128 | 1.20 | 13.33 | 0.017 0.000 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 12/25/25 | 59.4 2.9 | 1318 | 48.4 3.1 | 2359 | 48.2 2.2 | 84 | 96 0 | 63 9 | 5.7 | 24.3 1.3 | 0117 | 1.14 | 8.53 | 0.034 0.018 | 110 83 | 0 |
| Fulton-NW (Ranch 5) | 12/25/25 | 58.7 2.4 | 1419 | 48.5 2.3 | 0841 | 48.4 2.2 | 85 | 98 1 | 61 4 | 7.9 | 28.4 0.2 | 0118 | 1.21 | 13.33 | 0.040 0.013 | 114 66 | 0 |
| Windsor-South (Laughlin Rd) | 12/25/25 | 58.7 2.6 | 1359 | 48.4 2.5 | 2339 | 47.5 2.1 | 82 | 92 1 | 62 6 | - | - | - | 1.07 | 12.82 | - | - | - |
| Fulton-SE (Barnes Rd) | 12/25/25 | 58.4 3.2 | 1330 | 48.5 2.3 | 0833 | 48.3 2.4 | 84 | 94 0 | 63 4 | 6.6 | 29.2 0.6 | 0155 | 1.63 | 13.08 | - | - | - |
| Fulton-SW (Ranch 21) | 12/25/25 | 58.6 2.1 | 1320 | 48.2 2.1 | 0823 | 47.8 2.4 | 84 | 93 0 | 63 5 | 8.7 | 33.0 0.7 | 2103 | 1.09 | 12.94 | 0.041 0.017 | 131 77 | - |
| Santa Rosa-NW (Goldfields) | 12/24/25 | 62.2 | 1423 | 51.0 | 0829 | 49.1 | 76 | 100 | 56 | 6.5 | 27.4 | 2348 | 4.03 | 12.53 | 0.094 | 317 | - |
| Goldfields Remote | 12/24/25 | 61.6 2.9 | 0327 | 51.1 4.0 | 0837 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 12/25/25 | 58.7 2.9 | 1415 | 48.2 2.6 | 0821 | 50.6 2.4 | 92 | 100 0 | 68 4 | 6.0 | 32.6 8.2 | 0755 | 1.04 | 11.17 | - | - | - |
| River Rd South (Denner Ranch) | 12/25/25 | 58.4 3.7 | 1352 | 48.7 2.0 | 1810 | 48.5 3.1 | 84 | 100 0 | 63 4 | 12.3 | 47.8 1.1 | 0116 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 12/25/25 | 58.6 3.6 | 1312 | 48.6 2.6 | 2340 | 47.9 2.5 | 83 | 95 0 | 60 5 | 5.6 | 31.4 6.8 | 0754 | 0.47 | 10.90 | 0.021 0.006 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 12/25/25 | 58.4 4.2 | 1355 | 49.3 2.5 | 1814 | 48.4 2.3 | 83 | 95 2 | 64 5 | - | - | - | 0.67 | 12.19 | - | - | - |
| Guerneville Rd West (Balletto) | 12/25/25 | 58.4 4.3 | 1354 | 49.3 2.5 | 1810 | 49.3 2.6 | 86 | 97 0 | 68 5 | 7.9 | 30.0 1.5 | 0754 | 1.18 | 11.82 | - | - | - |
| Sanchietti Ranch | 12/25/25 | 59.4 3.8 | 1316 | 49.7 2.6 | 0810 | 50.5 2.8 | - | 96 0 | 72 1 | 9.0 | 39.8 2.1 | 0111 | 1.39 | 13.03 | - | - | - |
| Occidental Rd (Sebastopol) | 12/25/25 | 59.3 17.2 | 1315 | 47.9 0.6 | 2331 | 52.8 2.8 | 100 | 100 0 | 100 44 | 6.4 | 34.4 9.7 | 0750 | 0.04 | 6.45 | - | - | - |
| Lower Westside Rd (Ranch 12) | 12/25/25 | 58.6 6.8 | 1324 | 48.6 2.2 | 2238 | 48.0 2.1 | 84 | 95 0 | 62 14 | 3.9 | 20.0 2.5 | 0059 | 0.97 | 15.05 | - | - | 0 |
| Guerneville (Laughlin Rd) | 12/25/25 | 58.8 2.9 | 1140 | 48.0 1.8 | 0001 | 48.4 3.2 | 84 | 96 2 | 62 1 | 4.2 | 33.9 8.8 | 0200 | 1.88 | 21.57 | - | - | - |
| Korbel (Winery) | 12/25/25 | 58.0 3.6 | 1150 | 48.8 1.7 | 0822 | 47.9 3.2 | 81 | 95 1 | 63 2 | 4.3 | 33.0 2.0 | 1738 | 1.44 | 19.38 | - | - | - |
| Forestville (Shone Farms) | 12/25/25 | 59.6 3.8 | 1332 | 47.8 1.3 | 1802 | 47.9 2.7 | 82 | 94 2 | 63 3 | 6.5 | 36.7 0.0 | 0102 | 1.18 | 16.64 | 0.040 0.010 | 111 65 | 0 |
| Forestville-NE (Ranch 30) | 12/25/25 | 58.4 4.0 | 1312 | 48.1 1.9 | 1826 | 48.8 2.9 | 87 | 96 2 | 69 3 | 7.6 | 38.6 3.6 | 0122 | 1.04 | 15.15 | 0.034 0.013 | 115 67 | - |
| Green Valley Vineyard | 12/25/25 | 57.6 4.1 | 0014 | 48.0 2.1 | 1817 | 47.6 2.9 | 83 | 94 2 | 65 1 | 6.9 | 34.2 5.7 | 0128 | 1.09 | 18.44 | 0.022 0.007 | 0 0 | - |
| Green Valley (Sanchietti) | 12/25/25 | 59.3 3.9 | 1314 | 49.2 2.4 | 1801 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 12/25/25 | 57.9 4.7 | 1313 | 49.2 1.1 | 1811 | 49.4 2.9 | 85 | 94 3 | 72 1 | - | - | - | 1.09 | 16.41 | - | - | - |
| Graton-South (Mill Station Rd) | 12/25/25 | 57.2 3.6 | 0004 | 48.6 7.4 | 1804 | 48.1 3.1 | 86 | 93 6 | 73 2 | 4.7 | 21.5 1.0 | 0022 | 0.97 | 14.81 | - | - | 0 |
| Occidental (Horseshoe Bend) | 12/25/25 | 56.1 3.1 | 1325 | 46.5 2.3 | 1800 | 47.7 3.2 | - | 98 2 | 70 3 | - | - | - | 0.20 | 13.73 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 12/25/25 | 58.7 3.5 | 1352 | 49.2 1.3 | 0841 | 49.5 2.8 | 86 | 96 0 | 68 1 | 2.8 | 22.8 4.1 | 0102 | 0.00 | 7.00 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 12/25/25 | 57.2 3.7 | 1349 | 47.4 3.2 | 0801 | 48.8 2.9 | 88 | 99 0 | 72 1 | 7.0 | 33.8 1.0 | 0050 | 1.12 | 15.29 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 12/25/25 | 50.9 3.4 | 0019 | 42.0 2.8 | 1040 | 45.5 2.4 | 96 | 97 0 | 79 8 | 6.2 | 41.2 1.8 | 0021 | 0.92 | 27.43 | 0.011 0.031 | 42 161 | - |
| Max | 59.6 | - | 49.7 | - | 52.8 | 100 | 100 | 100 | 12.3 | 47.8 | - | 1.88 | 27.43 | 0.041 | 131 | - | |
| Avg | - | - | - | - | 48.5 | 86 | - | - | 6.4 | - | - | - | - | - | - | - | |
| Min | 50.9 | - | 42.0 | - | 45.5 | 81 | 85 | 57 | 2.8 | 20.0 | - | 0.00 | 6.45 | 0.011 | 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 | 12/25/25 | 54.3 2.9 | 1334 | 44.0 4.2 | 0828 | 46.1 2.4 | 97 0 | 70 8 | 4.2 0.1 | 29.4 1.1 | 0225 | SSE | 159 | 0.00 | 5.41 | 0.027 0.016 | 106 69 | - |
| Lower Bennett Valley | 12/25/25 | 55.5 4.1 | 0017 | 47.6 2.3 | 0901 | 47.6 2.9 | 94 2 | 70 10 | 6.9 0.8 | 33.3 5.4 | 0020 | S | 189 | 1.14 | 13.37 | 0.032 0.014 | 82 78 | 0 0 |
| Kenwood (Wildwood) | 12/25/25 | 55.2 4.4 | 0022 | 48.0 3.0 | 0909 | 47.7 3.2 | 98 2 | 68 7 | 6.8 2.1 | 31.4 8.3 | 0141 | SSW | 192 | 1.41 | 14.99 | 0.032 0.010 | 101 66 | - |
| Sonoma Valley (Bedrock) | 12/25/25 | 56.0 3.4 | 1319 | 44.6 6.8 | 2319 | 46.7 2.8 | 95 0 | 64 7 | - | - | - | - | 0.05 | 8.81 | - | - | - |
| Sonoma-West (Arnold) | 12/25/25 | 59.8 2.0 | 1313 | 47.5 5.0 | 2311 | 48.1 3.3 | 94 0 | 61 3 | 5.6 1.1 | 27.3 2.1 | 0917 | SSW | 194 | 1.73 | 9.56 | 0.041 0.010 | 146 51 | - |
| Sonoma Valley HS | 12/25/25 | 58.6 2.2 | 1314 | 44.8 7.8 | 2359 | 50.2 3.3 | 100 0 | 73 7 | 3.9 0.2 | 13.1 1.7 | 2129 | SSW | 211 | 0.02 | 4.76 | 0.031 0.011 | 128 48 | - |
| Sonoma East (Bundschu01) | 12/25/25 | 59.4 1.2 | 1102 | 44.4 7.8 | 2359 | 48.2 3.1 | 94 1 | 65 5 | 7.2 1.1 | 33.5 9.2 | 0117 | SE | 140 | 0.00 | 0.13 | 0.043 0.006 | 140 30 | - |
| 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) | 12/25/25 | 59.9 3.4 | 1059 | 45.9 7.2 | 2358 | 48.4 3.1 | 92 0 | 64 7 | 6.7 1.5 | 29.9 3.7 | 1144 | SSW | 197 | 1.12 | 7.75 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 12/25/25 | 59.4 2.2 | 1055 | 47.1 5.2 | 2359 | 48.7 2.9 | 94 1 | 64 5 | 8.8 2.0 | 32.8 8.9 | 1130 | S | 185 | 1.59 | 9.53 | 0.044 0.008 | 144 45 | - |
| Carneros (Ranch 71) | 12/25/25 | 58.4 1.9 | 0926 | 47.6 4.4 | 2146 | 48.5 2.7 | 100 4 | 66 6 | 8.2 1.5 | 29.1 7.4 | 2132 | W | 259 | 1.25 | 8.44 | 0.040 0.005 | 137 21 | 0 0 |
| Carneros Upper (Ranch 81) | 12/25/25 | 58.9 1.3 | 1046 | 47.8 4.4 | 2149 | 45.9 4.0 | - | - | 15.4 4.8 | 47.3 12.1 | 1145 | SSW | 211 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 12/25/25 | 60.5 0.4 | 1034 | 46.6 4.8 | 0001 | 40.4 5.5 | 100 0 | 0 0 | 5.3 1.4 | 25.6 4.4 | 1131 | SSW | 200 | 1.01 | 8.65 | 0.037 0.006 | 105 3 | - |
| Rohnert Park-West (Stony Point) | 12/25/25 | 59.4 2.8 | 1339 | 48.1 3.8 | 2106 | 49.2 2.7 | 95 2 | 67 1 | 8.2 1.3 | 33.8 3.6 | 0114 | S | 178 | 0.00 | 1.57 | - | - | - |
| Cartograph Wines Base | 12/25/25 | 58.1 5.0 | 1338 | 46.9 4.8 | 2104 | 49.4 3.2 | 98 1 | 71 3 | 10.0 1.3 | 39.2 6.4 | 0049 | SE | 144 | 1.05 | 12.10 | 0.045 0.001 | 173 4 | - |
| Cartograph Wines Remote | 12/25/25 | 59.7 2.9 | 1245 | 46.7 3.3 | 2338 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 12/25/25 | 60.2 3.1 | 1333 | 47.0 4.2 | 2100 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 12/25/25 | 59.5 1.0 | 1356 | 48.2 3.4 | 0858 | 47.6 2.6 | 93 0 | 59 2 | 8.7 0.7 | 34.7 6.0 | 0230 | SE | 126 | 0.00 | 0.10 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 12/25/25 | 55.6 3.0 | 1311 | 46.1 3.9 | 2152 | 46.8 3.6 | 100 0 | 66 8 | 7.2 0.7 | 25.4 1.9 | 0021 | SE | 131 | 1.12 | 10.92 | 0.037 0.007 | 123 49 | 0 0 |
| Petaluma (Ranch 10) | 12/25/25 | 59.2 4.1 | 1344 | 46.8 4.8 | 2231 | 48.5 3.2 | 95 0 | 64 7 | 3.3 0.1 | 19.3 2.8 | 0851 | W | 260 | 0.84 | 7.99 | 0.032 0.012 | 116 57 | 0 0 |
| Max | 60.5 | - | 48.2 | - | 50.2 | 100 | 73 | 15.4 | 47.3 | - | - | 1.73 | 14.99 | 0.045 | 173 | - | |
| Avg | - | - | - | - | 47.5 | - | - | 7.3 | - | - | - | - | - | - | - | - | |
| Min | 54.3 | - | 44.0 | - | 40.4 | 92 | 0 | 3.3 | 13.1 | - | - | 0.00 | 0.10 | 0.027 | 82 | - |