| 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) | 1/1/26 | 51.7 4.0 | 2340 | 47.1 0.5 | 0543 | 49.1 9.7 | 100 | 100 0 | 100 64 | 4.0 | 13.5 6.8 | 2151 | ESE | 121 | 0.57 | 22.84 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 1/1/26 | 49.6 6.1 | 2347 | 44.6 0.4 | 0349 | 46.9 11.5 | 100 | 100 0 | 100 73 | 8.8 | 23.9 7.7 | 1935 | ESE | 113 | 0.65 | 23.46 | 0.008 0.022 | 42 6 | 0 0 |
| Cloverdale-East (Ranch 83) | 1/1/26 | 55.1 3.3 | 2330 | 48.6 12.5 | 0031 | -54.5 50.3 | - | - | - | 2.0 | 15.7 1.9 | 2308 | SE | 132 | 0.51 | 20.15 | 0.046 0.030 | 37 7 | 0 0 |
| Cloverdale-SE (Ranch 38) | 1/1/26 | 54.0 2.9 | 2328 | 48.8 5.9 | 0655 | 50.8 5.9 | 99 | 100 1 | 98 30 | 5.8 | 18.0 1.2 | 2217 | SSE | 166 | 0.54 | 21.36 | 0.007 0.008 | 30 10 | 0 0 |
| Geyserville-North (Hoffman) | 1/1/26 | 55.2 5.4 | 2359 | 49.1 13.2 | 0001 | 51.2 7.5 | 97 | 98 0 | 95 7 | 2.5 | 8.6 3.8 | 2158 | SE | 137 | 0.00 | 0.00 | 0.010 0.001 | 33 3 | 0 0 |
| Geyserville (Ranch 3) | 1/1/26 | 54.6 5.1 | 2255 | 49.1 12.1 | 0042 | 51.8 6.9 | 100 | 100 0 | 100 0 | 2.4 | 8.9 3.8 | 1051 | SE | 137 | 0.91 | 19.25 | 0.009 0.000 | 38 2 | 0 0 |
| Geyserville-East (Ranch 40) | 1/1/26 | 54.3 5.8 | 1808 | 48.1 8.0 | 0514 | 50.6 6.0 | 100 | 100 0 | 97 14 | 6.7 | 23.4 13.8 | 2331 | SSE | 161 | 0.76 | 19.09 | 0.009 0.003 | 41 5 | 0 0 |
| Geyserville-South (Nervo Station) | 1/1/26 | 54.6 4.5 | 2358 | 49.3 11.3 | 0208 | - | - | - | - | 1.7 | 7.4 1.7 | 1942 | SE | 133 | 0.67 | 14.26 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 1/1/26 | 55.4 5.8 | 2039 | 49.0 12.2 | 0037 | 52.2 7.5 | 100 | 100 0 | 100 9 | 1.2 | 11.2 6.8 | 2015 | ESE | 119 | 0.76 | 17.55 | 0.009 0.000 | 37 1 | 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) | 1/1/26 | 55.1 4.5 | 2058 | 49.7 14.3 | 0118 | 51.5 7.1 | 98 | 100 0 | 95 5 | 1.9 | 11.4 5.8 | 1643 | NE | 37 | 0.62 | 17.88 | 0.008 0.001 | 25 2 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 1/1/26 | 53.0 5.0 | 2350 | 47.8 11.5 | 0001 | 50.1 6.6 | 100 | 100 0 | 100 12 | 2.0 | 9.3 4.6 | 1846 | ESE | 110 | 0.84 | 18.04 | 0.007 0.001 | 28 5 | - |
| Knights Valley (Bavarian Lion) | 1/1/26 | 54.3 2.5 | 2055 | 49.0 13.8 | 0244 | 49.5 6.2 | 94 | 97 1 | 88 5 | 5.3 | 13.5 0.7 | 0149 | S | 169 | 0.57 | 18.12 | 0.015 0.003 | 45 7 | - |
| Upper Dry Creek Valley | 1/1/26 | 54.7 4.4 | 2359 | 49.5 13.4 | 0126 | 51.0 6.9 | 98 | 98 0 | 96 7 | 2.3 | 10.4 4.0 | 2151 | SE | 134 | 0.76 | 21.05 | 0.012 0.001 | 47 4 | - |
| Lower Dry Creek Valley | 1/1/26 | 55.2 5.4 | 2357 | 49.4 12.8 | 0019 | 51.9 7.0 | 100 | 100 0 | 100 9 | 1.4 | 10.5 4.3 | 2336 | E | 97 | 0.96 | 19.88 | 0.009 0.001 | 36 7 | 0 0 |
| Max | 55.4 | - | 49.7 | - | 52.2 | 100 | 100 | 100 | 8.8 | 23.9 | - | - | 0.96 | 23.46 | 0.046 | 47 | - | |
| Avg | - | - | - | - | 42.5 | 99 | - | - | 3.4 | - | - | - | - | - | - | - | - | |
| Min | 49.6 | - | 44.6 | - | -54.5 | 94 | 97 | 88 | 1.2 | 7.4 | - | - | 0.00 | 0.00 | 0.007 | 25 | - |
| 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) | 1/1/26 | 55.5 4.8 | 2031 | 49.5 11.2 | 0640 | - | - | 100 0 | 100 11 | 0.4 | 9.3 0.6 | 2111 | 0.88 | 12.16 | - | - | 0 |
| Windsor-NW (Ranch 8) | 1/1/26 | 55.2 4.6 | 2253 | 49.8 11.3 | 0410 | 48.6 6.4 | 88 | 89 2 | 87 2 | 0.9 | 9.1 1.0 | 2137 | 0.88 | 17.57 | 0.011 0.002 | 31 14 | - |
| Windsor-East (Ranch 16) | 1/1/26 | 55.8 1.3 | 2354 | 49.6 11.7 | 0613 | 51.8 6.7 | 98 | 100 0 | 92 19 | 2.4 | 15.2 3.8 | 2032 | 0.79 | 13.56 | 0.010 0.001 | 34 4 | 0 |
| Mark West-North (Ranch 14) | 1/1/26 | 55.1 2.9 | 2250 | 49.6 12.6 | 0411 | 51.6 7.0 | 98 | 98 0 | 97 11 | 0.9 | 7.5 3.6 | 2257 | 0.86 | 15.21 | 0.001 0.000 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 1/1/26 | 55.1 4.0 | 2037 | 49.8 13.5 | 0356 | 51.8 7.1 | 99 | 100 0 | 98 7 | 1.2 | 12.1 6.0 | 2019 | 0.87 | 10.51 | 0.009 0.001 | 33 10 | 0 |
| Fulton-NW (Ranch 5) | 1/1/26 | 55.4 3.8 | 2202 | 49.6 13.8 | 0724 | -20.3 16.6 | 11 | 100 0 | 3 0 | 2.2 | 14.2 7.6 | 2122 | 0.86 | 15.23 | 0.047 0.032 | 38 5 | 0 |
| Windsor-South (Laughlin Rd) | 1/1/26 | 55.3 4.6 | 2018 | 49.5 13.2 | 0557 | -20.6 5.5 | 21 | 100 0 | 0 0 | - | - | - | 0.91 | 14.77 | - | - | - |
| Fulton-SE (Barnes Rd) | 1/1/26 | 55.7 4.7 | 2146 | 49.8 9.8 | 0738 | 51.4 6.6 | 96 | 98 0 | 93 1 | 2.4 | 11.5 3.9 | 2123 | 0.71 | 14.70 | - | - | - |
| Fulton-SW (Ranch 21) | 1/1/26 | 55.2 5.0 | 1943 | 49.4 14.3 | 0718 | -55.5 9.6 | 5 | 100 100 | 0 0 | 2.6 | 15.9 8.9 | 2014 | 0.84 | 14.80 | 0.057 0.022 | 43 4 | - |
| Santa Rosa-NW (Goldfields) | 12/31/25 | 50.8 2.7 | 1539 | 36.2 3.3 | 0008 | 45.0 6.9 | 99 | 100 0 | 95 8 | 1.3 | 8.3 0.3 | 1349 | 0.73 | 14.79 | 0.009 0.005 | 38 41 | - |
| Goldfields Remote | 1/1/26 | 55.7 4.8 | 2025 | 49.3 13.5 | 0002 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 1/1/26 | 55.4 5.1 | 1923 | 49.2 14.0 | 0007 | 52.1 7.2 | 100 | 100 0 | 100 0 | 1.7 | 12.4 7.5 | 2010 | 0.86 | 13.12 | - | - | - |
| River Rd South (Denner Ranch) | 1/1/26 | 55.3 5.1 | 1936 | 49.2 14.3 | 0734 | 51.9 7.0 | 100 | 100 0 | 100 0 | 3.4 | 20.2 11.4 | 2024 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 1/1/26 | 55.3 4.8 | 1944 | 49.2 13.5 | 0001 | 51.8 7.4 | 99 | 100 0 | 96 3 | 0.8 | 8.6 1.8 | 2152 | 0.20 | 12.17 | 0.001 0.000 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 1/1/26 | 55.6 5.0 | 1943 | 49.6 13.2 | 0031 | 52.0 7.2 | 99 | 100 0 | 96 4 | - | - | - | 0.21 | 13.13 | - | - | - |
| Guerneville Rd West (Balletto) | 1/1/26 | 55.8 5.1 | 1945 | 49.7 13.9 | 0033 | 52.4 7.5 | 100 | 100 0 | 99 2 | 2.3 | 13.9 7.4 | 2140 | 0.93 | 13.88 | - | - | - |
| Sanchietti Ranch | 1/1/26 | 56.6 5.6 | 1935 | 50.3 13.1 | 0100 | 53.0 7.2 | - | 100 0 | 97 1 | 3.4 | 17.4 9.2 | 2117 | 0.76 | 14.90 | - | - | - |
| Occidental Rd (Sebastopol) | 1/1/26 | 72.1 21.6 | 1557 | 40.0 4.1 | 0851 | 52.3 9.3 | 100 | 100 0 | 100 24 | 1.7 | 11.4 3.9 | 2021 | 0.01 | 6.59 | - | - | - |
| Lower Westside Rd (Ranch 12) | 1/1/26 | 55.2 4.7 | 2232 | 49.6 10.5 | 0649 | 52.0 7.1 | 100 | 100 0 | 99 10 | 0.4 | 7.6 2.2 | 2242 | 0.87 | 16.95 | - | - | 0 |
| Guerneville (Laughlin Rd) | 1/1/26 | 53.6 3.6 | 2258 | 49.9 10.0 | 0018 | 51.1 6.1 | 97 | 98 0 | 95 6 | 0.6 | 6.4 2.4 | 0135 | 1.09 | 24.08 | - | - | - |
| Korbel (Winery) | 1/1/26 | 54.8 4.8 | 2131 | 49.9 9.5 | 0003 | 51.6 6.1 | 98 | 100 0 | 96 5 | 1.1 | 9.6 6.9 | 0225 | 0.86 | 21.52 | - | - | - |
| Forestville (Shone Farms) | 1/1/26 | 56.0 3.2 | 1948 | 47.6 11.5 | 0511 | 51.3 6.6 | 98 | 99 0 | 97 7 | 1.8 | 15.1 7.6 | 2053 | 1.04 | 18.85 | 0.009 0.002 | 30 13 | 0 |
| Forestville-NE (Ranch 30) | 1/1/26 | 54.6 4.5 | 2313 | 48.9 11.3 | 0733 | 51.3 6.4 | 100 | 100 0 | 99 2 | 2.5 | 14.9 9.1 | 2151 | 1.04 | 17.38 | 0.008 0.002 | 34 11 | - |
| Green Valley Vineyard | 1/1/26 | 55.7 5.0 | 2331 | 48.7 11.3 | 0648 | 51.0 6.6 | 98 | 98 0 | 97 12 | 1.2 | 10.1 6.1 | 2137 | 1.65 | 21.60 | 0.001 0.000 | 0 0 | - |
| Green Valley (Sanchietti) | 1/1/26 | 56.0 5.1 | 2320 | 49.1 13.9 | 0010 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 1/1/26 | 56.2 5.4 | 2328 | 49.1 14.7 | 0001 | 51.9 7.2 | 99 | 100 0 | 98 3 | - | - | - | 1.41 | 19.14 | - | - | - |
| Graton-South (Mill Station Rd) | 1/1/26 | 55.4 5.4 | 2008 | 48.8 14.4 | 0001 | 51.7 7.5 | 100 | 100 0 | 98 3 | 0.9 | 9.4 6.0 | 2058 | 1.21 | 17.29 | - | - | 0 |
| Occidental (Horseshoe Bend) | 1/1/26 | 54.8 4.4 | 2351 | 48.1 7.3 | 0536 | 51.0 7.3 | - | 100 0 | 100 26 | - | - | - | 0.17 | 14.94 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 1/1/26 | 56.2 6.4 | 2336 | 49.3 15.5 | 0001 | 52.1 7.8 | 99 | 99 0 | 98 2 | 1.0 | 9.3 3.6 | 0938 | 0.01 | 7.02 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 1/1/26 | 54.9 5.9 | 2308 | 48.4 9.0 | 0439 | 51.1 6.5 | 100 | 100 0 | 100 6 | 1.0 | 9.4 3.0 | 1021 | 1.06 | 17.65 | - | - | - |
| 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 | 72.1 | - | 50.3 | - | 53.0 | 100 | 100 | 100 | 3.4 | 20.2 | - | 1.65 | 24.08 | 0.057 | 43 | - | |
| Avg | - | - | - | - | 41.9 | 87 | - | - | 1.6 | - | - | - | - | - | - | - | |
| Min | 53.6 | - | 40.0 | - | -55.5 | 5 | 89 | 0 | 0.4 | 6.4 | - | 0.01 | 6.59 | 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 | 1/1/26 | 53.5 5.6 | 1830 | 48.1 4.4 | 0351 | 49.3 8.7 | 98 5 | 90 62 | 3.3 0.7 | 18.6 1.8 | 2124 | SE | 144 | 0.00 | 5.41 | 0.011 0.008 | 33 4 | - |
| Lower Bennett Valley | 1/1/26 | 55.9 2.0 | 2315 | 49.8 12.1 | 0237 | 51.2 6.6 | 100 0 | 89 14 | 3.9 1.5 | 13.1 2.4 | 0051 | NNW | 335 | 0.28 | 14.66 | 0.014 0.000 | 38 0 | 0 0 |
| Kenwood (Wildwood) | 1/1/26 | 54.6 0.5 | 1909 | 49.1 9.0 | 0240 | 51.2 6.9 | 100 0 | 90 18 | 3.8 0.1 | 14.6 3.4 | 0044 | S | 185 | 0.60 | 16.52 | 0.014 0.005 | 60 10 | - |
| Sonoma Valley (Bedrock) | 1/1/26 | 53.7 3.8 | 2302 | 48.4 8.9 | 0724 | 49.6 6.1 | 98 0 | 92 8 | - | - | - | - | 0.03 | 9.02 | - | - | - |
| Sonoma-West (Arnold) | 1/1/26 | 54.8 3.9 | 2254 | 49.1 8.4 | 0451 | 51.6 6.5 | 100 0 | 95 10 | 1.9 0.8 | 10.3 4.0 | 2258 | SE | 145 | 0.37 | 11.49 | 0.012 0.000 | 47 1 | - |
| Sonoma Valley HS | 1/1/26 | 54.8 3.7 | 2125 | 49.6 8.5 | 0449 | 52.0 6.0 | 100 0 | 98 6 | 1.3 0.5 | 8.4 0.4 | 2235 | S | 181 | 0.01 | 4.83 | 0.011 0.001 | 44 2 | - |
| Sonoma East (Bundschu01) | 1/1/26 | 56.2 3.0 | 1930 | 50.6 9.7 | 0846 | 50.8 6.0 | 97 1 | 86 12 | 2.9 1.1 | 14.2 1.5 | 0039 | ESE | 122 | 0.00 | 0.13 | 0.017 0.003 | 50 7 | - |
| 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) | 1/1/26 | 55.9 2.6 | 1956 | 50.6 9.6 | 0139 | 50.9 6.2 | 95 1 | 87 15 | 1.2 0.3 | 13.5 1.7 | 0008 | E | 95 | 0.21 | 8.72 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 1/1/26 | 55.1 3.8 | 2103 | 49.8 10.2 | 0338 | 50.8 6.3 | 96 0 | 92 13 | 3.1 0.3 | 11.8 0.1 | 2205 | SE | 141 | 0.35 | 11.14 | 0.017 0.002 | 57 10 | - |
| Carneros (Ranch 71) | 1/1/26 | 55.1 2.4 | 1953 | 49.3 8.9 | 0104 | 50.7 6.2 | 100 0 | 91 23 | 5.4 0.3 | 16.2 2.7 | 0010 | E | 86 | 0.29 | 9.72 | 0.016 0.000 | 53 11 | 0 0 |
| Carneros Upper (Ranch 81) | 1/1/26 | 55.0 2.8 | 1950 | 49.0 9.2 | 0110 | -38.7 73.2 | - | - | 6.0 0.3 | 14.0 5.3 | 0234 | NE | 44 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 1/1/26 | 54.5 3.5 | 1955 | 49.2 9.0 | 0121 | -60.5 65.2 | 100 0 | 0 0 | 2.1 0.1 | 8.6 2.2 | 0740 | N | 0 | 0.31 | 9.92 | 0.054 0.040 | 38 6 | - |
| Rohnert Park-West (Stony Point) | 1/1/26 | 55.5 5.9 | 1920 | 49.5 10.8 | 0539 | 52.0 7.3 | 100 0 | 99 3 | 3.7 2.7 | 18.0 9.1 | 2022 | ESE | 122 | 0.00 | 1.57 | - | - | - |
| Cartograph Wines Base | 1/1/26 | 54.8 5.1 | 1946 | 49.0 9.6 | 0320 | 51.6 6.6 | 100 0 | 99 6 | 5.3 3.0 | 19.6 8.1 | 2041 | ESE | 121 | 0.47 | 13.81 | 0.012 0.002 | 58 12 | - |
| Cartograph Wines Remote | 1/1/26 | 55.1 5.0 | 1956 | 49.4 10.8 | 0506 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 1/1/26 | 55.3 5.2 | 1945 | 49.4 12.8 | 0451 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 1/1/26 | 57.8 7.1 | 1358 | 49.6 9.5 | 0853 | 50.9 7.0 | 97 1 | 81 5 | 6.7 4.1 | 17.1 5.0 | 2047 | ESE | 108 | 0.00 | 0.10 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 1/1/26 | 53.5 4.8 | 1658 | 47.2 7.8 | 0237 | 50.2 6.4 | 100 0 | 100 12 | 4.8 0.2 | 14.0 0.8 | 2151 | ESE | 109 | 0.29 | 12.29 | 0.011 0.001 | 52 8 | 0 0 |
| Petaluma (Ranch 10) | 1/1/26 | 55.5 4.9 | 1504 | 49.3 8.7 | 0232 | 52.0 7.1 | 100 0 | 94 8 | 3.2 0.2 | 7.8 0.6 | 0042 | SE | 137 | 0.12 | 8.94 | 0.013 0.002 | 55 13 | 0 0 |
| Max | 57.8 | - | 50.6 | - | 52.0 | 100 | 100 | 6.7 | 19.6 | - | - | 0.60 | 16.52 | 0.054 | 60 | - | |
| Avg | - | - | - | - | 39.1 | - | - | 3.6 | - | - | - | - | - | - | - | - | |
| Min | 53.5 | - | 47.2 | - | -60.5 | 95 | 0 | 1.2 | 7.8 | - | - | 0.00 | 0.10 | 0.011 | 33 | - |