| 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) | 1/23/26 | 61.1 9.0 | 1350 | 38.9 7.9 | 0754 | 44.0 0.0 | 83 | 100 10 | 59 24 | 1.3 | 6.1 2.5 | 2149 | N | 0 | 0.00 | 28.82 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 1/23/26 | 59.1 7.2 | 1523 | 45.2 1.1 | 0805 | 42.6 1.9 | 73 | 89 2 | 54 16 | 5.0 | 16.0 2.4 | 0303 | N | 2 | 0.00 | 29.56 | 0.072 0.015 | 313 27 | 0 0 |
| Cloverdale-East (Ranch 83) | 1/23/26 | 55.0 18.0 | 1412 | 35.7 1.6 | 0445 | -24.9 65.6 | - | - | - | 2.0 | 11.4 4.9 | 1530 | S | 178 | 0.00 | 25.01 | 0.043 0.027 | 186 63 | 0 0 |
| Cloverdale-SE (Ranch 38) | 1/23/26 | 53.6 17.4 | 1423 | 39.5 5.4 | 0600 | 43.9 1.8 | 97 | 100 4 | 83 44 | 3.6 | 13.7 1.0 | 2357 | NNE | 29 | 0.00 | 26.49 | 0.032 0.041 | 184 71 | 0 0 |
| Geyserville-North (Hoffman) | 1/23/26 | 51.1 17.3 | 1407 | 43.3 3.0 | 0722 | 45.0 0.2 | 95 | 97 1 | 85 45 | 1.9 | 8.4 0.2 | 1323 | SE | 145 | 0.00 | 25.50 | 0.025 0.040 | 118 126 | 0 0 |
| Geyserville (Ranch 3) | 1/23/26 | 50.5 17.2 | 1458 | 43.2 2.6 | 0705 | 45.8 0.2 | 99 | 100 0 | 86 46 | 2.0 | 8.6 1.4 | 1326 | ESE | 110 | 0.00 | 25.44 | 0.021 0.042 | 104 143 | 0 0 |
| Geyserville-East (Ranch 40) | 1/23/26 | 47.0 20.9 | 1548 | 40.3 4.5 | 0636 | 43.9 2.7 | 100 | 100 1 | 99 53 | 2.6 | 11.6 4.8 | 1427 | SSE | 165 | 0.01 | 25.87 | 0.020 0.057 | 117 158 | 0 0 |
| Geyserville-South (Nervo Station) | 1/23/26 | 48.9 18.7 | 1415 | 43.3 0.1 | 0642 | - | - | - | - | 0.8 | 6.8 2.7 | 1457 | S | 184 | 0.01 | 19.40 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 1/23/26 | 50.3 19.0 | 1523 | 42.8 4.0 | 0734 | 45.6 2.0 | 98 | 100 0 | 88 48 | 1.2 | 5.5 2.2 | 1326 | E | 101 | 0.00 | 23.63 | 0.017 0.038 | 75 156 | 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) | 1/23/26 | 50.0 19.3 | 1444 | 42.5 3.5 | 0520 | 45.4 1.3 | 98 | 100 0 | 88 46 | 1.7 | 7.3 1.3 | 1354 | SSW | 204 | 0.00 | 22.79 | 0.016 0.044 | 66 167 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 1/23/26 | 48.4 18.8 | 1533 | 41.9 2.7 | 0522 | 44.6 0.9 | 98 | 100 0 | 89 44 | 0.2 | 5.0 4.6 | 1936 | NNW | 343 | 0.01 | 24.16 | 0.016 0.043 | 70 158 | - |
| Knights Valley (Bavarian Lion) | 1/23/26 | 52.2 17.2 | 1522 | 40.2 3.5 | 0011 | 43.9 1.2 | 96 | 98 0 | 82 46 | 1.4 | 6.4 1.4 | 1602 | NNW | 348 | 0.00 | 22.63 | 0.023 0.039 | 120 132 | - |
| Upper Dry Creek Valley | 1/23/26 | 50.2 18.2 | 1412 | 43.2 2.2 | 2337 | 45.1 0.4 | 96 | 98 0 | 86 42 | 1.9 | 9.0 3.1 | 1526 | SE | 131 | 0.00 | 27.46 | 0.023 0.046 | 108 159 | - |
| Lower Dry Creek Valley | 1/23/26 | 49.7 19.7 | 1308 | 44.6 3.4 | 0720 | 46.5 0.2 | 99 | 100 0 | 86 42 | 2.1 | 7.6 3.1 | 0145 | WNW | 300 | 0.00 | 27.06 | 0.020 0.046 | 91 160 | 0 0 |
| Max | 61.1 | - | 45.2 | - | 46.5 | 100 | 100 | 99 | 5.0 | 16.0 | - | - | 0.01 | 29.56 | 0.072 | 313 | - | |
| Avg | - | - | - | - | 39.3 | 94 | - | - | 2.0 | - | - | - | - | - | - | - | - | |
| Min | 47.0 | - | 35.7 | - | -24.9 | 73 | 89 | 54 | 0.2 | 5.0 | - | - | 0.00 | 19.40 | 0.016 | 66 | - |
| 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) | 1/23/26 | 49.7 18.3 | 1652 | 44.1 2.3 | 0740 | - | - | 100 0 | 90 43 | 0.8 | 7.1 2.8 | 1214 | 0.00 | 19.43 | - | - | 0 |
| Windsor-NW (Ranch 8) | 1/23/26 | 49.8 18.4 | 1700 | 44.4 0.4 | 0650 | 43.4 2.5 | 87 | 91 4 | 83 28 | 1.1 | 7.5 0.5 | 1447 | 0.00 | 23.45 | 0.018 0.039 | 70 181 | - |
| Windsor-East (Ranch 16) | 1/23/26 | 49.3 17.1 | 1610 | 43.0 2.0 | 0807 | 46.0 0.2 | 98 | 100 0 | 90 43 | 2.0 | 7.1 1.8 | 1447 | 0.00 | 17.32 | 0.016 0.050 | 67 193 | 0 |
| Mark West-North (Ranch 14) | 1/23/26 | 49.8 16.4 | 1608 | 43.8 1.8 | 0714 | 45.8 0.0 | 96 | 99 1 | 90 44 | 1.5 | 6.6 3.4 | 1350 | 0.00 | 18.96 | 0.002 0.012 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 1/23/26 | 50.6 15.2 | 1644 | 44.6 5.4 | 0651 | 46.6 1.4 | 98 | 100 1 | 91 43 | 1.9 | 6.7 2.3 | 2153 | 0.01 | 15.31 | 0.015 0.050 | 63 200 | 0 |
| Fulton-NW (Ranch 5) | 1/23/26 | 50.0 14.4 | 1559 | 44.3 1.9 | 0711 | 2.0 42.2 | 41 | 100 0 | 3 0 | 1.8 | 6.8 3.6 | 1420 | 0.00 | 18.91 | 0.038 0.023 | 66 171 | 0 |
| Windsor-South (Laughlin Rd) | 1/23/26 | 50.2 15.5 | 1627 | 44.5 2.9 | 0658 | -6.3 48.4 | 47 | 100 0 | 0 0 | - | - | - | 0.00 | 18.83 | - | - | - |
| Fulton-SE (Barnes Rd) | 1/23/26 | 50.0 15.2 | 1644 | 46.0 4.6 | 0736 | 46.4 0.1 | 94 | 98 0 | 89 38 | 0.7 | 5.7 3.7 | 0839 | 0.00 | 18.16 | - | - | - |
| Fulton-SW (Ranch 21) | 1/23/26 | 49.8 15.0 | 1544 | 44.6 3.2 | 0715 | -30.3 41.9 | 28 | 100 0 | 0 0 | 1.9 | 6.9 3.4 | 0843 | 0.00 | 18.44 | 0.038 0.028 | 68 176 | - |
| Santa Rosa-NW (Goldfields) | 1/23/26 | 50.3 15.3 | 1526 | 44.9 2.9 | 0733 | 47.0 0.6 | 97 | 100 0 | 90 41 | 2.2 | 7.5 4.0 | 0835 | 0.00 | 19.41 | 0.015 0.043 | 59 164 | - |
| Goldfields Remote | 1/23/26 | 50.5 15.2 | 1522 | 46.5 5.5 | 2353 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 1/23/26 | 50.3 14.0 | 1626 | 45.0 4.7 | 0721 | 47.6 0.3 | 100 | 100 0 | 100 43 | 1.3 | 6.1 4.5 | 1519 | 0.00 | 16.67 | - | - | - |
| River Rd South (Denner Ranch) | 1/23/26 | 50.8 13.9 | 1538 | 44.9 4.2 | 0730 | 47.6 1.0 | 100 | 100 0 | 100 44 | 2.4 | 8.8 3.1 | 2133 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 1/23/26 | 50.6 14.8 | 1548 | 44.8 3.8 | 0727 | 46.8 1.1 | 97 | 100 0 | 89 41 | 1.7 | 7.0 4.0 | 0815 | 0.02 | 14.61 | 0.002 0.012 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 1/23/26 | 50.8 14.4 | 1614 | 45.4 3.9 | 0734 | 47.2 1.1 | 97 | 100 0 | 89 36 | - | - | - | 0.00 | 17.50 | - | - | - |
| Guerneville Rd West (Balletto) | 1/23/26 | 50.6 14.1 | 1548 | 45.3 4.0 | 0738 | 47.4 1.0 | 98 | 100 0 | 92 35 | 2.0 | 7.2 3.8 | 0815 | 0.00 | 17.42 | - | - | - |
| Sanchietti Ranch | 1/23/26 | 51.9 12.7 | 1615 | 46.8 4.7 | 0828 | 48.3 0.7 | - | 100 0 | 92 28 | 2.1 | 7.2 2.7 | 0840 | 0.00 | 18.32 | - | - | - |
| Occidental Rd (Sebastopol) | 1/23/26 | 50.6 15.7 | 1615 | 45.4 5.3 | 0829 | 47.8 1.9 | 100 | 100 0 | 100 3 | 1.9 | 6.8 4.6 | 0848 | 0.00 | 6.76 | - | - | - |
| Lower Westside Rd (Ranch 12) | 1/23/26 | 50.8 19.3 | 1634 | 44.6 1.7 | 0702 | 46.1 0.2 | 94 | 99 2 | 86 43 | 0.7 | 5.0 2.7 | 1429 | 0.00 | 22.83 | - | - | 0 |
| Guerneville (Laughlin Rd) | 1/23/26 | 51.7 14.7 | 1453 | 45.6 1.8 | 0839 | 46.7 0.4 | 94 | 98 0 | 86 34 | 1.2 | 6.4 3.8 | 1428 | 0.01 | 30.92 | - | - | - |
| Korbel (Winery) | 1/23/26 | 51.6 15.7 | 1536 | 45.7 1.1 | 0820 | 46.7 0.5 | 94 | 100 0 | 85 35 | 1.6 | 5.8 4.5 | 1011 | 0.00 | 28.43 | - | - | - |
| Forestville (Shone Farms) | 1/23/26 | 51.3 15.1 | 1637 | 44.3 3.4 | 0946 | 46.4 0.2 | 97 | 98 1 | 92 37 | 1.8 | 6.9 3.9 | 2046 | 0.01 | 24.19 | 0.016 0.046 | 64 189 | 0 |
| Forestville-NE (Ranch 30) | 1/23/26 | 50.1 16.8 | 1552 | 44.3 4.2 | 0735 | 46.5 0.7 | 98 | 100 0 | 94 36 | 2.1 | 7.7 2.8 | 1026 | 0.01 | 22.51 | 0.015 0.049 | 67 199 | - |
| Green Valley Vineyard | 1/23/26 | 51.0 14.0 | 1552 | 45.3 3.1 | 0848 | 46.8 0.3 | 97 | 99 0 | 91 35 | 1.1 | 4.8 5.0 | 0859 | 0.01 | 27.25 | 0.001 0.011 | 0 0 | - |
| Green Valley (Sanchietti) | 1/23/26 | 52.3 14.9 | 1610 | 45.6 6.0 | 0001 | - | - | - | - | - | - | - | - | - | - | - | - |
| Keefer Ranch (Green Valley) | 1/23/26 | 52.2 12.6 | 1528 | 45.2 5.9 | 0001 | 47.5 1.6 | 97 | 99 0 | 90 26 | - | - | - | 0.01 | 24.47 | - | - | - |
| Graton-South (Mill Station Rd) | 1/23/26 | 51.2 12.2 | 1532 | 44.8 5.8 | 0001 | 47.2 1.8 | 97 | 100 0 | 89 35 | 0.2 | 3.9 3.5 | 0809 | 0.01 | 21.66 | - | - | 0 |
| Occidental (Horseshoe Bend) | 1/23/26 | 49.6 11.6 | 1510 | 44.3 0.4 | 2359 | 46.4 0.0 | - | 100 0 | 100 41 | - | - | - | 0.00 | 16.08 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 1/23/26 | 51.8 10.7 | 1534 | 45.6 7.5 | 0001 | 47.5 1.6 | 97 | 100 0 | 89 27 | 1.2 | 6.9 2.4 | 2148 | 0.00 | 7.09 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 1/23/26 | 48.7 11.7 | 1446 | 45.2 0.4 | 0815 | 46.9 1.1 | 100 | 100 0 | 100 35 | 1.1 | 6.1 6.2 | 1622 | 0.00 | 21.46 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 1/23/26 | 54.0 10.5 | 0127 | 42.1 4.5 | 0743 | 45.0 3.9 | 91 | 97 2 | 53 15 | 2.1 | 7.1 2.3 | 1408 | 0.00 | 37.55 | 0.030 0.035 | 166 102 | - |
| Max | 54.0 | - | 46.8 | - | 48.3 | 100 | 100 | 100 | 2.4 | 8.8 | - | 0.02 | 37.55 | 0.038 | 166 | - | |
| Avg | - | - | - | - | 40.5 | 90 | - | - | 1.5 | - | - | - | - | - | - | - | |
| Min | 48.7 | - | 42.1 | - | -30.3 | 28 | 91 | 0 | 0.2 | 3.9 | - | 0.00 | 6.76 | 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 | 1/23/26 | 48.2 15.6 | 1550 | 38.2 2.7 | 0447 | 42.8 0.8 | 99 1 | 75 28 | 1.1 0.7 | 6.0 3.0 | 2323 | N | 0 | 0.00 | 5.41 | 0.022 0.049 | 114 186 | - |
| Lower Bennett Valley | 1/23/26 | 51.7 15.5 | 1514 | 44.2 6.1 | 0548 | 46.3 0.8 | 100 0 | 86 40 | 1.9 0.3 | 6.4 2.8 | 0657 | SE | 133 | 0.00 | 17.51 | 0.019 0.049 | 87 190 | 0 0 |
| Kenwood (Wildwood) | 1/23/26 | 51.2 16.4 | 1620 | 42.5 1.1 | 0339 | 46.2 0.9 | 100 0 | 90 43 | 1.8 1.1 | 8.8 0.5 | 1939 | NNW | 329 | 0.00 | 21.09 | 0.018 0.042 | 80 161 | - |
| Sonoma Valley (Bedrock) | 1/23/26 | 51.3 14.9 | 1536 | 41.3 0.6 | 0327 | 44.7 0.8 | 98 1 | 85 40 | - | - | - | - | 0.00 | 17.00 | - | - | - |
| Sonoma-West (Arnold) | 1/23/26 | 53.0 15.1 | 1651 | 38.4 1.0 | 0003 | 46.2 1.6 | 100 0 | 84 34 | 1.8 0.3 | 7.4 3.4 | 2104 | NNW | 342 | 0.00 | 14.29 | 0.019 0.055 | 83 220 | - |
| Sonoma Valley HS | 1/23/26 | 52.3 13.0 | 1531 | 39.4 0.8 | 0143 | 47.2 0.2 | 100 0 | 90 32 | 1.0 0.4 | 3.2 3.3 | 2248 | W | 263 | 0.01 | 5.12 | 0.015 0.045 | 63 203 | - |
| Sonoma East (Bundschu01) | 1/23/26 | 52.4 13.6 | 1604 | 37.0 0.5 | 0113 | 45.7 1.3 | 98 1 | 84 34 | 1.6 0.7 | 6.6 3.9 | 1448 | NNW | 343 | 0.00 | 11.65 | 0.018 0.052 | 68 227 | - |
| 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) | 1/23/26 | 52.7 14.3 | 1541 | 37.8 1.7 | 0111 | 45.6 1.0 | 96 0 | 84 37 | 0.5 0.7 | 7.1 2.3 | 1924 | WSW | 252 | 0.00 | 10.96 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 1/23/26 | 53.8 12.8 | 1545 | 39.3 0.5 | 0121 | 45.7 0.3 | 97 0 | 80 33 | 2.2 1.3 | 9.4 2.1 | 1946 | WNW | 293 | 0.00 | 13.95 | 0.020 0.054 | 79 229 | - |
| Carneros (Ranch 71) | 1/23/26 | 51.5 15.0 | 1607 | 43.6 0.5 | 0210 | 46.7 0.9 | 100 3 | 86 39 | 2.3 0.8 | 8.8 2.6 | 1513 | WNW | 297 | 0.00 | 11.98 | 0.017 0.049 | 68 218 | 0 0 |
| Carneros Upper (Ranch 81) | 1/23/26 | 51.3 13.0 | 1606 | 43.2 1.6 | 0239 | -4.2 48.4 | - | - | 2.7 2.0 | 9.3 6.9 | 2009 | WSW | 256 | - | - | - | - | - |
| Carneros Lower (Ranch 81) | 1/23/26 | 51.8 14.0 | 1545 | 40.9 0.0 | 0144 | 1.2 44.4 | 100 0 | 0 47 | 1.2 0.9 | 7.7 1.5 | 1547 | NW | 307 | 0.00 | 12.79 | 0.024 0.025 | 48 132 | - |
| Rohnert Park-West (Stony Point) | 1/23/26 | 51.5 11.5 | 1531 | 47.2 6.5 | 0927 | 47.7 0.4 | 99 1 | 90 26 | 1.5 0.4 | 7.2 3.7 | 1641 | WSW | 252 | 0.00 | 1.58 | - | - | - |
| Cartograph Wines Base | 1/23/26 | 50.8 9.8 | 1425 | 46.3 1.3 | 0907 | 47.7 1.2 | 100 2 | 94 22 | 2.2 1.0 | 9.0 8.0 | 2204 | N | 4 | 0.00 | 17.42 | 0.017 0.039 | 73 195 | - |
| Cartograph Wines Remote | 1/23/26 | 52.0 11.9 | 1435 | 46.9 7.9 | 0913 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 1/23/26 | 51.8 10.8 | 1442 | 47.0 10.3 | 0918 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 1/23/26 | 52.8 12.7 | 1512 | 46.2 4.3 | 2358 | 46.5 0.2 | 97 1 | 81 27 | 2.2 0.1 | 7.2 3.9 | 1030 | E | 86 | 0.41 | 15.52 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 1/23/26 | 53.3 13.2 | 1512 | 46.1 1.6 | 2357 | 46.6 0.8 | 100 1 | 79 33 | 0.9 0.2 | 4.9 2.3 | 0759 | NE | 40 | 0.00 | 14.80 | 0.019 0.004 | 72 87 | 0 0 |
| Petaluma (Ranch 10) | 1/23/26 | 56.6 13.5 | 1537 | 46.3 4.8 | 2339 | 46.8 0.6 | 96 4 | 71 25 | 1.6 0.0 | 7.9 4.4 | 1613 | NW | 321 | 0.00 | 11.56 | 0.024 0.033 | 96 128 | 0 0 |
| Max | 56.6 | - | 47.2 | - | 47.7 | 100 | 94 | 2.7 | 9.4 | - | - | 0.41 | 21.09 | 0.024 | 114 | - | |
| Avg | - | - | - | - | 40.6 | - | - | 1.6 | - | - | - | - | - | - | - | - | |
| Min | 48.2 | - | 37.0 | - | -4.2 | 96 | 0 | 0.5 | 3.2 | - | - | 0.00 | 1.58 | 0.015 | 48 | - |