| 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) | 12/22/25 | 58.2 1.0 | 1422 | 49.0 5.7 | 0722 | 51.9 3.7 | 97 | 100 0 | 77 18 | 1.1 | 9.4 12.3 | 0313 | NNW | 336 | 0.32 | 15.98 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 12/22/25 | 55.2 0.4 | 1436 | 46.2 5.7 | 0740 | 49.8 3.5 | 99 | 100 0 | 83 17 | 3.5 | 15.3 36.4 | 0329 | NNW | 340 | 0.35 | 15.98 | 0.026 0.023 | 127 107 | 0 0 |
| Cloverdale-East (Ranch 83) | 12/22/25 | 61.8 1.7 | 1430 | 49.6 7.9 | 0809 | -15.4 71.1 | - | - | - | 1.4 | 10.7 13.3 | 0001 | SE | 140 | 0.34 | 13.00 | 0.039 0.025 | 116 101 | 0 0 |
| Cloverdale-SE (Ranch 38) | 12/22/25 | 60.6 1.6 | 1401 | 51.9 4.9 | 0753 | 54.0 3.1 | 97 | 100 1 | 81 15 | 3.2 | 12.1 13.0 | 0001 | SE | 145 | 0.33 | 13.49 | 0.025 0.019 | 103 89 | 0 0 |
| Geyserville-North (Hoffman) | 12/18/25 | 54.7 12.4 | 1442 | 38.7 2.9 | 0312 | 47.0 0.2 | 94 | 98 0 | 85 24 | 1.3 | 6.6 2.5 | 1512 | SE | 130 | 0.00 | 0.00 | 0.019 0.024 | 74 105 | 0 0 |
| Geyserville (Ranch 3) | 12/22/25 | 59.4 0.5 | 1404 | 52.8 4.6 | 0750 | 55.8 2.3 | 99 | 100 0 | 85 14 | 1.4 | 7.7 6.6 | 0409 | NW | 305 | 0.39 | 12.14 | 0.021 0.017 | 86 72 | 0 0 |
| Geyserville-East (Ranch 40) | 12/22/25 | 58.0 0.1 | 1403 | 51.6 4.4 | 0811 | 54.2 2.6 | 99 | 100 0 | 90 8 | 3.2 | 16.4 10.8 | 0027 | S | 171 | 0.37 | 12.54 | 0.020 0.017 | 85 72 | 0 0 |
| Geyserville-South (Nervo Station) | 12/22/25 | 59.6 0.8 | 1244 | 53.4 3.6 | 0825 | - | - | - | - | 0.6 | 6.4 8.7 | 0050 | S | 186 | 0.28 | 9.60 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 12/22/25 | 60.3 0.4 | 1348 | 54.0 3.9 | 0809 | 55.7 2.7 | 97 | 100 0 | 79 14 | 0.9 | 7.7 12.1 | 0003 | SSE | 149 | 0.39 | 12.28 | 0.019 0.013 | 71 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) | 12/22/25 | 60.2 0.7 | 1322 | 55.2 2.8 | 1901 | 55.8 2.1 | 97 | 100 0 | 82 12 | 1.0 | 9.2 7.5 | 0040 | SSW | 208 | 0.35 | 13.32 | 0.014 0.006 | 48 34 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 12/22/25 | 57.8 0.1 | 1355 | 53.0 3.2 | 0957 | 54.5 2.2 | 98 | 100 0 | 86 10 | 1.5 | 11.1 10.6 | 0006 | S | 170 | 0.35 | 13.16 | 0.015 0.011 | 55 39 | - |
| Knights Valley (Bavarian Lion) | 12/22/25 | 58.5 0.7 | 1318 | 54.0 3.1 | 1827 | 54.2 2.1 | 94 | 98 0 | 81 8 | 1.3 | 9.2 9.7 | 0056 | WSW | 256 | 0.32 | 13.71 | 0.018 0.004 | 62 35 | - |
| Upper Dry Creek Valley | 12/22/25 | 60.8 0.5 | 1358 | 52.6 5.1 | 0817 | 54.4 3.0 | 94 | 98 0 | 74 15 | 0.8 | 7.1 5.2 | 1506 | SSE | 148 | 0.24 | 12.81 | 0.023 0.014 | 88 67 | - |
| Lower Dry Creek Valley | 12/22/25 | 60.7 0.1 | 1238 | 54.5 3.4 | 0738 | 55.8 3.1 | 97 | 100 0 | 74 16 | 1.5 | 9.2 5.9 | 0042 | N | 355 | 0.30 | 13.03 | 0.020 0.012 | 73 47 | 0 0 |
| Max | 61.8 | - | 55.2 | - | 55.8 | 99 | 100 | 90 | 3.5 | 16.4 | - | - | 0.39 | 15.98 | 0.039 | 127 | - | |
| Avg | - | - | - | - | 48.4 | 97 | - | - | 1.6 | - | - | - | - | - | - | - | - | |
| Min | 55.2 | - | 46.2 | - | -15.4 | 94 | 98 | 74 | 0.6 | 6.4 | - | - | 0.24 | 9.60 | 0.014 | 48 | - |
| 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) | 12/22/25 | 60.4 0.7 | 1311 | 54.9 2.9 | 2339 | - | - | 100 0 | 81 14 | 0.4 | 8.8 13.4 | 0023 | 0.27 | 6.89 | - | - | 0 |
| Windsor-NW (Ranch 8) | 12/22/25 | 59.2 0.4 | 1315 | 55.0 3.0 | 2357 | 52.3 1.1 | 85 | 87 2 | 81 0 | 0.0 | 3.0 16.0 | 0002 | 0.30 | 12.86 | 0.017 0.005 | 63 44 | - |
| Windsor-East (Ranch 16) | 12/22/25 | 59.6 0.1 | 1311 | 55.2 2.5 | 1744 | 56.0 2.2 | 97 | 100 0 | 83 10 | 1.6 | 10.7 8.9 | 0044 | 0.28 | 9.65 | 0.015 0.008 | 52 37 | 0 |
| Mark West-North (Ranch 14) | 12/22/25 | 59.3 0.2 | 1259 | 55.3 2.4 | 1956 | 55.4 2.2 | 96 | 98 0 | 83 10 | 0.8 | 7.8 8.6 | 0002 | 0.30 | 10.82 | 0.001 0.004 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 12/22/25 | 59.8 0.2 | 1310 | 54.7 3.4 | 0629 | 55.7 2.2 | 96 | 99 0 | 83 11 | 1.0 | 9.4 9.6 | 0021 | 0.25 | 5.76 | 0.016 0.007 | 57 38 | 0 |
| Fulton-NW (Ranch 5) | 12/22/25 | 59.2 0.6 | 1213 | 55.1 2.7 | 2001 | 0.2 28.6 | 30 | 100 0 | 3 0 | 1.5 | 12.4 5.7 | 0001 | 0.32 | 10.82 | 0.042 0.004 | 60 42 | 0 |
| Windsor-South (Laughlin Rd) | 12/22/25 | 58.9 0.8 | 1309 | 55.0 2.8 | 2301 | -4.0 32.6 | 26 | 100 0 | 0 0 | - | - | - | 0.27 | 10.42 | - | - | - |
| Fulton-SE (Barnes Rd) | 12/22/25 | 58.6 1.8 | 1301 | 55.4 2.7 | 0919 | 55.5 2.2 | 96 | 98 0 | 86 5 | 1.5 | 11.6 7.4 | 0027 | 0.34 | 10.35 | - | - | - |
| Fulton-SW (Ranch 21) | 12/22/25 | 58.2 1.4 | 0001 | 54.8 2.9 | 0802 | -32.8 16.8 | 21 | 100 0 | 0 0 | 1.6 | 10.4 10.2 | 0009 | 0.31 | 10.61 | 0.048 0.040 | 64 43 | - |
| Santa Rosa-NW (Goldfields) | 12/19/25 | 58.9 1.9 | 1534 | 52.6 12.9 | 0225 | 56.1 7.5 | 100 | 100 0 | 93 25 | 3.1 | 14.0 9.1 | 1058 | 0.56 | 8.50 | 0.008 0.009 | 33 45 | - |
| Goldfields Remote | 12/21/25 | 60.1 1.3 | 1210 | 58.0 3.4 | 1719 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 12/22/25 | 58.8 1.5 | 1245 | 54.9 3.3 | 0806 | 56.5 2.5 | 100 | 100 0 | 96 4 | 1.0 | 11.1 8.9 | 0217 | 0.30 | 8.97 | - | - | - |
| River Rd South (Denner Ranch) | 12/22/25 | 58.2 1.6 | 0001 | 54.5 3.2 | 0706 | 56.1 2.5 | 100 | 100 0 | 100 0 | 2.0 | 12.3 16.4 | 0013 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 12/22/25 | 58.5 1.6 | 1230 | 54.6 3.5 | 0758 | 55.5 2.1 | 97 | 100 0 | 88 4 | 1.0 | 10.6 9.3 | 0210 | 0.80 | 9.22 | 0.002 0.005 | 3 3 | 0 |
| Guerneville Rd (Prokopakis) | 12/22/25 | 58.8 1.4 | 1257 | 55.2 3.1 | 0730 | 56.1 2.2 | 98 | 100 0 | 90 4 | - | - | - | 0.83 | 10.66 | - | - | - |
| Guerneville Rd West (Balletto) | 12/22/25 | 59.0 1.6 | 0003 | 55.0 3.6 | 0752 | 56.4 2.3 | 99 | 100 0 | 93 1 | 1.3 | 12.3 9.5 | 0158 | 0.32 | 9.44 | - | - | - |
| Sanchietti Ranch | 12/22/25 | 59.7 1.9 | 0001 | 55.9 3.4 | 0935 | 57.0 2.4 | - | 100 0 | 92 1 | 1.7 | 11.8 13.2 | 0016 | 0.44 | 10.43 | - | - | - |
| Occidental Rd (Sebastopol) | 12/22/25 | 82.2 2.1 | 0224 | 38.7 3.4 | 0827 | 56.7 2.5 | 100 | 100 0 | 100 0 | 1.4 | 14.7 13.6 | 0008 | 0.08 | 6.33 | - | - | - |
| Lower Westside Rd (Ranch 12) | 12/22/25 | 59.7 0.4 | 1417 | 55.2 3.0 | 2357 | 55.5 2.2 | 95 | 100 0 | 83 9 | 0.2 | 4.8 11.7 | 0011 | 0.26 | 12.45 | - | - | 0 |
| Guerneville (Laughlin Rd) | 12/22/25 | 60.3 0.1 | 1320 | 54.6 4.0 | 0747 | 55.4 1.8 | 95 | 98 0 | 82 7 | 0.4 | 9.8 9.8 | 0010 | 0.40 | 16.89 | - | - | - |
| Korbel (Winery) | 12/22/25 | 59.4 1.0 | 1304 | 55.2 3.1 | 0611 | 55.8 1.5 | 97 | 100 0 | 85 3 | 0.4 | 5.3 12.9 | 1330 | 0.39 | 15.44 | - | - | - |
| Forestville (Shone Farms) | 12/22/25 | 60.2 1.4 | 0144 | 54.1 2.4 | 2205 | 55.5 2.2 | 96 | 99 0 | 85 8 | 1.1 | 10.2 13.7 | 0004 | 0.27 | 13.57 | 0.015 0.004 | 52 33 | 0 |
| Forestville-NE (Ranch 30) | 12/22/25 | 58.3 1.3 | 1338 | 54.6 3.1 | 2251 | 55.7 2.2 | 99 | 100 0 | 92 3 | 1.0 | 9.0 13.7 | 0007 | 0.26 | 12.46 | 0.015 0.007 | 55 33 | - |
| Green Valley Vineyard | 12/22/25 | 58.5 1.5 | 0002 | 52.6 5.1 | 0727 | 54.9 2.3 | 97 | 99 0 | 88 5 | 0.9 | 12.1 16.9 | 0001 | 0.35 | 15.73 | 0.001 0.006 | 0 0 | - |
| Green Valley (Sanchietti) | 12/22/25 | 59.8 1.1 | 1301 | 54.3 4.2 | 0639 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 12/22/25 | 59.3 1.3 | 1254 | 52.8 5.9 | 0633 | 55.9 2.4 | 98 | 100 2 | 92 1 | - | - | - | 0.35 | 13.87 | - | - | - |
| Graton-South (Mill Station Rd) | 12/22/25 | 58.6 1.3 | 0147 | 53.7 4.3 | 0755 | 55.6 1.8 | 99 | 100 3 | 96 1 | 0.3 | 8.8 8.7 | 0123 | 0.43 | 12.91 | - | - | 0 |
| Occidental (Horseshoe Bend) | 12/22/25 | 56.7 0.8 | 0005 | 52.4 3.9 | 0746 | 54.6 2.2 | - | 100 0 | 100 0 | - | - | - | 0.90 | 12.86 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 12/22/25 | 58.8 0.8 | 0131 | 54.3 4.0 | 0814 | 56.1 2.5 | 99 | 100 0 | 97 0 | 0.6 | 11.2 7.7 | 0603 | 0.01 | 7.00 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 12/22/25 | 57.8 0.7 | 0126 | 53.0 4.0 | 0817 | 55.0 2.6 | 100 | 100 0 | 100 0 | 1.6 | 17.5 6.9 | 0126 | 0.51 | 12.87 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 12/22/25 | 55.1 0.2 | 1348 | 48.8 4.1 | 0728 | 50.4 2.7 | 96 | 97 0 | 89 8 | 1.5 | 7.5 22.9 | 2235 | 0.28 | 23.62 | 0.023 0.018 | 100 94 | - |
| Max | 82.2 | - | 55.9 | - | 57.0 | 100 | 100 | 100 | 2.0 | 17.5 | - | 0.90 | 23.62 | 0.048 | 100 | - | |
| Avg | - | - | - | - | 47.9 | 88 | - | - | 1.0 | - | - | - | - | - | - | - | |
| Min | 55.1 | - | 38.7 | - | -32.8 | 21 | 87 | 0 | 0.0 | 3.0 | - | 0.01 | 5.76 | 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 | 12/22/25 | 55.6 1.1 | 0238 | 52.8 2.1 | 0918 | 54.0 1.6 | 99 0 | 99 0 | 1.3 1.4 | 12.2 3.1 | 0115 | SSW | 209 | 0.00 | 5.40 | 0.011 0.007 | 42 30 | - |
| Lower Bennett Valley | 12/22/25 | 57.6 1.5 | 0209 | 54.2 2.7 | 1447 | 55.8 2.0 | 100 0 | 94 1 | 2.0 3.1 | 11.5 4.8 | 0123 | ESE | 112 | 0.63 | 11.32 | 0.011 0.006 | 41 29 | 0 0 |
| Kenwood (Wildwood) | 12/22/25 | 57.7 2.9 | 1307 | 55.1 1.5 | 1738 | 56.5 0.9 | 100 0 | 97 10 | 1.7 3.1 | 9.8 8.2 | 0023 | SW | 229 | 0.77 | 11.76 | 0.011 0.001 | 42 6 | - |
| Sonoma Valley (Bedrock) | 12/22/25 | 58.0 1.2 | 1346 | 54.8 1.3 | 1843 | 55.2 1.1 | 98 0 | 92 1 | - | - | - | - | 0.39 | 8.50 | - | - | - |
| Sonoma-West (Arnold) | 12/22/25 | 59.7 1.3 | 1434 | 56.6 1.3 | 0748 | 57.5 0.5 | 100 0 | 90 1 | 1.6 2.7 | 11.8 5.6 | 0050 | SSW | 193 | 0.73 | 7.11 | 0.015 0.002 | 53 0 | - |
| Sonoma Valley HS | 12/22/25 | 58.7 1.7 | 1535 | 56.7 0.9 | 0721 | 57.7 0.9 | 100 0 | 100 4 | 1.2 1.9 | 9.4 2.1 | 0055 | SSE | 167 | 0.01 | 4.72 | 0.011 0.001 | 38 6 | - |
| Sonoma East (Bundschu01) | 12/22/25 | 59.4 0.9 | 1429 | 56.5 0.8 | 0833 | 57.0 0.4 | 98 0 | 93 4 | 3.2 3.9 | 17.1 7.2 | 0043 | SSE | 150 | 0.00 | 0.13 | 0.011 0.004 | 35 1 | - |
| 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) | 12/22/25 | 59.2 1.0 | 1323 | 56.2 0.9 | 0824 | 56.7 0.4 | 97 0 | 95 5 | 1.9 4.3 | 15.5 4.4 | 0044 | SSE | 148 | 0.24 | 5.95 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 12/22/25 | 59.4 1.6 | 1425 | 56.3 0.8 | 0833 | 56.6 0.4 | 98 0 | 93 5 | 4.3 4.1 | 17.2 4.9 | 0115 | SSW | 199 | 0.31 | 6.87 | 0.015 0.006 | 46 22 | - |
| Carneros (Ranch 71) | 12/22/25 | 58.0 1.4 | 1318 | 55.5 0.5 | 0824 | 56.8 0.4 | 100 0 | 100 5 | 4.2 3.7 | 17.0 4.2 | 0042 | S | 186 | 0.32 | 6.34 | 0.010 0.000 | 37 8 | 0 0 |
| Carneros Upper (Ranch 81) | 12/22/25 | 57.8 1.5 | 1411 | 55.6 0.5 | 0800 | 56.8 14.3 | - | - | 7.2 8.0 | 24.1 6.4 | 0231 | SSW | 204 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 12/22/25 | 58.3 1.2 | 1350 | 55.8 0.5 | 0915 | -60.3 0.4 | 0 0 | 0 0 | 1.9 2.9 | 13.3 4.6 | 0025 | SSE | 162 | 0.34 | 6.69 | 0.053 0.059 | 25 3 | - |
| Rohnert Park-West (Stony Point) | 12/22/25 | 58.9 2.2 | 0005 | 55.1 3.4 | 0859 | 55.9 2.6 | 99 1 | 96 5 | 1.5 6.4 | 14.9 6.8 | 0138 | S | 176 | 0.00 | 1.57 | - | - | - |
| Cartograph Wines Base | 12/22/25 | 58.4 1.7 | 0121 | 53.9 4.0 | 0817 | 55.6 2.9 | 100 0 | 94 1 | 2.2 7.4 | 18.4 14.2 | 0111 | S | 173 | 0.46 | 9.58 | 0.014 0.005 | 54 25 | - |
| Cartograph Wines Remote | 12/22/25 | 58.5 1.7 | 1345 | 54.6 3.4 | 0812 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 12/22/25 | 58.8 1.9 | 0120 | 54.5 4.0 | 0818 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 12/22/25 | 58.3 2.6 | 0127 | 54.8 2.6 | 1005 | 55.3 2.0 | 98 1 | 93 6 | 0.5 6.4 | 8.6 13.7 | 0118 | ESE | 121 | 0.00 | 0.10 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 12/22/25 | 56.7 1.4 | 1411 | 54.2 1.4 | 1817 | 55.5 1.2 | 100 0 | 100 0 | 2.3 3.7 | 12.9 3.4 | 0026 | SSW | 198 | 0.47 | 8.52 | 0.012 0.006 | 44 18 | 0 0 |
| Petaluma (Ranch 10) | 12/22/25 | 58.3 2.5 | 0310 | 55.8 1.7 | 0928 | 56.9 1.2 | 100 0 | 100 8 | 0.7 0.5 | 6.3 6.3 | 1039 | WNW | 291 | 0.33 | 6.01 | 0.011 0.003 | 42 17 | 0 0 |
| Max | 59.7 | - | 56.7 | - | 57.7 | 100 | 100 | 7.2 | 24.1 | - | - | 0.77 | 11.76 | 0.053 | 54 | - | |
| Avg | - | - | - | - | 49.4 | - | - | 2.4 | - | - | - | - | - | - | - | - | |
| Min | 55.6 | - | 52.8 | - | -60.3 | 0 | 0 | 0.5 | 6.3 | - | - | 0.00 | 0.10 | 0.010 | 25 | - |