| 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) | 3/30/26 | 74.8 9.7 | 1320 | 54.3 7.3 | 2326 | 38.1 2.6 | 38 | 74 26 | 20 9 | 1.9 | 9.2 7.9 | 0322 | WNW | 288 | 0.00 | 36.97 | - | - | 90 10 |
| Rockpile Upper (Cooley) | 3/30/26 | 72.1 6.4 | 1333 | 50.2 9.8 | 0059 | 35.3 1.6 | 38 | 82 37 | 19 5 | 6.5 | 21.7 0.2 | 0408 | NW | 325 | 0.00 | 37.66 | 0.141 0.088 | 284 242 | 90 10 |
| Cloverdale-East (Ranch 83) | 3/30/26 | 76.6 10.7 | 1357 | 53.8 2.4 | 0542 | 43.6 3.0 | - | - | - | 5.0 | 19.1 1.3 | 0855 | N | 9 | 0.00 | 30.99 | 0.124 0.077 | 260 216 | 70 20 |
| Cloverdale-SE (Ranch 38) | 3/30/26 | 74.7 12.4 | 1352 | 55.0 0.8 | 0054 | 44.5 3.8 | 50 | 81 26 | 36 20 | 6.2 | 21.9 0.7 | 0627 | NNW | 335 | 0.00 | 32.45 | 0.125 0.095 | 242 206 | 60 10 |
| Geyserville-North (Hoffman) | 3/30/26 | 78.3 12.7 | 1337 | 53.0 5.8 | 0704 | 46.6 3.1 | 54 | 79 6 | 35 17 | 2.5 | 10.7 0.7 | 2122 | SE | 130 | 0.00 | 25.50 | 0.087 0.072 | 208 229 | 20 20 |
| Geyserville (Ranch 3) | 3/30/26 | 76.7 12.4 | 1337 | 54.2 2.6 | 0702 | 45.0 4.0 | 51 | 81 8 | 31 18 | 3.2 | 11.0 2.6 | 2108 | SE | 134 | 0.00 | 31.63 | 0.099 0.092 | 231 234 | 70 20 |
| Geyserville-East (Ranch 40) | 3/30/26 | 73.6 16.0 | 1613 | 54.0 1.1 | 0616 | 44.7 2.7 | 52 | 85 26 | 37 19 | 4.6 | 19.5 4.8 | 1926 | SSE | 147 | 0.00 | 32.10 | 0.107 0.071 | 258 233 | 70 20 |
| Geyserville-South (Nervo Station) | 3/30/26 | 75.6 14.1 | 1330 | 51.6 1.1 | 0700 | - | - | - | - | 1.4 | 10.5 5.4 | 2010 | SE | 130 | 0.00 | 24.64 | - | - | 100 20 |
| Jimtown-North (Piccolo Ranch 15) | 3/30/26 | 75.6 12.4 | 1541 | 47.5 3.3 | 0716 | 45.4 3.3 | 59 | 82 18 | 33 19 | 1.2 | 10.3 0.7 | 1930 | E | 95 | 0.00 | 29.34 | 0.074 0.061 | 222 180 | 100 10 |
| HWY 128/Chalk Hill Rd (Landslide) | 3/30/26 | 76.5 14.3 | 1559 | 45.8 3.5 | 0720 | 46.8 1.9 | 65 | 94 4 | 30 15 | 1.3 | 9.4 1.7 | 2029 | SE | 136 | 0.00 | 28.06 | 0.076 0.068 | 209 204 | 90 20 |
| N Chalk Hill Rd (Ranch 63) | 3/30/26 | 76.8 11.0 | 1617 | 44.1 4.3 | 0529 | 46.1 1.8 | 66 | 98 2 | 29 15 | 2.0 | 14.1 5.8 | 1918 | S | 169 | 0.00 | 29.61 | 0.084 0.056 | 233 193 | 90 20 |
| Knights Valley (Bavarian Lion) | 3/30/26 | 75.3 11.7 | 1543 | 43.1 3.8 | 0559 | 45.9 2.5 | 67 | 96 2 | 27 13 | 1.4 | 7.8 3.9 | 2348 | NW | 320 | 0.00 | 27.72 | 0.086 0.076 | 274 204 | 90 10 |
| Upper Dry Creek Valley | 3/30/26 | 74.9 13.7 | 1628 | 49.8 3.3 | 0504 | 46.3 2.8 | 58 | 81 9 | 33 19 | 2.0 | 9.6 1.2 | 2101 | SSE | 155 | 0.00 | 34.53 | 0.087 0.081 | 243 258 | 70 10 |
| Lower Dry Creek Valley | 3/30/26 | 77.2 14.2 | 1346 | 48.9 4.5 | 0435 | 46.0 2.6 | 58 | 83 17 | 31 18 | 0.9 | 9.7 2.0 | 2018 | ESE | 116 | 0.00 | 33.46 | 0.078 0.084 | 232 230 | 70 20 |
| Max | 78.3 | - | 55.0 | - | 46.8 | 67 | 98 | 37 | 6.5 | 21.9 | - | - | 0.00 | 37.66 | 0.141 | 284 | - | |
| Avg | - | - | - | - | 44.2 | 55 | - | - | 2.9 | - | - | - | - | - | - | - | - | |
| Min | 72.1 | - | 43.1 | - | 35.3 | 38 | 74 | 19 | 0.9 | 7.8 | - | - | 0.00 | 24.64 | 0.074 | 208 | - |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Windsor-NW (Ranch 8) | 3/30/26 | 76.3 12.9 | 1605 | 52.2 2.9 | 0617 | 48.9 0.8 | 64 | 81 1 | 35 11 | 0.1 | 7.4 2.6 | 1843 | 0.00 | 29.12 | 0.072 0.080 | 254 241 | 30 |
| Windsor-East (Ranch 16) | 3/30/26 | 76.3 12.6 | 1420 | 47.1 4.1 | 0718 | 45.8 2.6 | 59 | 88 8 | 27 12 | 2.0 | 12.1 0.3 | 0520 | 0.00 | 21.96 | 0.090 0.083 | 242 253 | 80 |
| Mark West-North (Ranch 14) | 3/30/26 | 76.5 11.8 | 1408 | 49.2 5.0 | 0711 | 46.6 3.0 | 62 | 89 7 | 24 9 | 1.1 | 10.4 2.0 | 0057 | 0.00 | 23.74 | 0.016 0.013 | 0 0 | 60 |
| Windsor-SE (Silk Rd) | 3/30/26 | 76.4 10.8 | 1429 | 45.8 3.6 | 0527 | 47.7 2.6 | 68 | 95 4 | 29 13 | 1.7 | 11.3 0.1 | 2329 | 0.00 | 21.14 | 0.084 0.079 | 242 245 | 80 |
| Fulton-NW (Ranch 5) | 3/30/26 | 76.2 10.6 | 1429 | 46.2 4.9 | 0718 | 47.4 2.9 | 68 | 93 4 | 26 11 | 1.8 | 8.2 2.4 | 1937 | 0.00 | 23.97 | 0.089 0.076 | 253 226 | 80 |
| Windsor-South (Laughlin Rd) | 2/27/26 | 81.3 4.8 | 1431 | 49.4 1.9 | 0637 | 53.1 42.4 | 74 | 100 0 | 0 0 | - | - | - | 0.00 | 24.07 | - | - | - |
| Fulton-SE (Barnes Rd) | 3/30/26 | 76.8 10.9 | 1435 | 48.1 4.0 | 0718 | 48.0 2.2 | 66 | 88 5 | 27 9 | 1.6 | 10.7 0.4 | 1912 | 0.00 | 23.01 | - | - | 80 |
| Fulton-SW (Ranch 21) | 3/30/26 | 76.6 9.0 | 1419 | 46.1 3.9 | 0727 | 47.6 3.1 | 69 | 92 8 | 28 27 | 1.7 | 9.4 1.1 | 0053 | 0.00 | 23.44 | 0.090 0.084 | 282 244 | 0 |
| NW Santa Rosa (Piner Road) | 3/30/26 | 74.6 12.2 | 1426 | 46.2 4.2 | 0702 | 51.0 2.3 | 78 | 100 0 | 32 12 | 1.4 | 11.1 0.4 | 0057 | 0.00 | 21.90 | - | - | 50 |
| River Rd South (Denner Ranch) | 3/30/26 | 77.3 9.1 | 1402 | 45.5 3.3 | 0726 | 32.0 22.2 | 60 | 100 0 | 0 0 | 2.5 | 11.6 3.3 | 1932 | - | - | - | - | 90 |
| West Santa Rosa (LOV Vineyard) | 3/30/26 | 76.3 10.4 | 1419 | 47.0 4.0 | 0719 | 48.4 2.6 | 70 | 92 6 | 32 18 | 1.6 | 9.0 2.3 | 1932 | 0.00 | 16.83 | 0.019 0.013 | 0 1 | 70 |
| Guerneville Rd (Prokopakis) | 3/30/26 | 76.8 12.2 | 1437 | 48.0 3.9 | 0707 | 48.6 2.8 | 69 | 93 4 | 33 18 | - | - | - | 0.00 | 23.07 | - | - | 80 |
| Guerneville Rd West (Balletto) | 3/30/26 | 75.5 12.5 | 1357 | 45.8 4.8 | 0705 | 49.8 2.9 | 75 | 97 2 | 36 17 | 1.9 | 13.8 2.3 | 2326 | 0.00 | 22.55 | - | - | 0 |
| Sanchietti Ranch | 3/30/26 | 75.2 11.6 | 1421 | 46.6 4.6 | 0709 | 51.5 2.2 | - | 95 4 | 45 22 | 2.1 | 13.3 2.9 | 2327 | 0.00 | 23.50 | - | - | 0 |
| Occidental Rd (Sebastopol) | 3/30/26 | 75.8 11.9 | 1428 | 45.0 4.1 | 0707 | 53.7 2.9 | 86 | 100 0 | 53 32 | 2.3 | 12.1 1.3 | 2324 | 0.00 | 6.96 | - | - | 0 |
| Lower Westside Rd (Ranch 12) | 3/30/26 | 75.6 12.7 | 1601 | 46.3 4.1 | 0656 | 48.1 2.0 | 68 | 91 7 | 36 19 | 1.1 | 10.0 0.3 | 1951 | 0.00 | 28.30 | - | - | 80 |
| Guerneville (Laughlin Rd) | 3/30/26 | 76.9 10.5 | 1414 | 44.2 4.1 | 0707 | 46.7 2.8 | 69 | 95 3 | 32 14 | 1.3 | 9.9 4.9 | 1855 | 0.00 | 39.24 | - | - | 80 |
| Korbel (Winery) | 3/30/26 | 76.4 12.2 | 1553 | 46.9 3.4 | 0710 | 48.1 2.5 | 70 | 95 5 | 30 14 | 0.6 | 7.7 5.3 | 1752 | 0.00 | 36.61 | - | - | 80 |
| Forestville (Shone Farms) | 3/30/26 | 76.4 11.6 | 1559 | 48.4 2.3 | 0533 | 47.7 3.0 | 64 | 91 0 | 38 23 | 2.2 | 13.0 1.9 | 2318 | 0.00 | 30.31 | 0.087 0.076 | 247 227 | 80 |
| Forestville-NE (Ranch 30) | 3/30/26 | 75.8 11.9 | 1346 | 46.4 2.6 | 0523 | 49.8 1.8 | 72 | 96 3 | 40 21 | 1.8 | 8.9 3.6 | 2020 | 0.00 | 28.46 | 0.086 0.080 | 252 233 | 100 |
| Green Valley Vineyard | 3/30/26 | 74.1 13.1 | 1429 | 48.3 1.9 | 0655 | 48.2 5.1 | 67 | 93 2 | 38 25 | 1.9 | 12.7 2.4 | 1946 | 0.00 | 35.04 | 0.022 0.029 | 17 15 | 80 |
| Green Valley (Sanchietti) | 3/30/26 | 76.8 13.7 | 1409 | 43.0 4.0 | 0715 | - | - | - | - | - | - | - | - | - | - | - | 80 |
| Keefer Ranch (Green Valley) | 3/30/26 | 75.2 13.1 | 1418 | 44.2 2.8 | 0724 | 49.3 4.1 | 74 | 96 2 | 45 26 | - | - | - | 0.00 | 31.31 | - | - | 80 |
| Graton-South (Mill Station Rd) | 3/30/26 | 75.6 8.3 | 1346 | 43.5 3.8 | 0714 | 49.0 3.4 | 76 | 96 2 | 40 24 | 0.6 | 8.6 1.8 | 1948 | 0.00 | 27.62 | - | - | 90 |
| Occidental (Horseshoe Bend) | 3/30/26 | 72.0 14.4 | 1316 | 53.4 5.0 | 2150 | 46.5 5.8 | - | 100 47 | 36 21 | - | - | - | 0.00 | 32.10 | - | - | 100 |
| Sexton Valley (Jacqueline's Blk) | 3/30/26 | 74.1 10.4 | 1245 | 45.6 2.6 | 0717 | 50.2 2.1 | 77 | 97 2 | 41 17 | 1.7 | 16.5 6.5 | 1921 | 0.00 | 15.31 | - | - | 90 |
| Sebastopol Hills (Burnside Rd) | 3/30/26 | 71.1 10.4 | 1334 | 53.9 0.6 | 2205 | 48.2 2.6 | 66 | 99 28 | 43 19 | 2.3 | 12.6 0.7 | 2008 | 0.00 | 27.89 | - | - | 0 |
| Seaview/Fort Ross (Hirsch) | 3/30/26 | 70.8 9.1 | 1027 | 50.8 12.4 | 0017 | 35.1 0.4 | 38 | 92 52 | 10 9 | 2.4 | 13.4 5.5 | 2333 | 0.00 | 48.40 | 0.094 0.076 | 253 257 | 70 |
| Max | 77.3 | - | 53.9 | - | 53.7 | 86 | 100 | 53 | 2.5 | 16.5 | - | 0.00 | 48.40 | 0.094 | 282 | - | |
| Avg | - | - | - | - | 47.5 | 68 | - | - | 1.6 | - | - | - | - | - | - | - | |
| Min | 70.8 | - | 43.0 | - | 32.0 | 38 | 81 | 0 | 0.1 | 7.4 | - | 0.00 | 6.96 | 0.016 | 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 | 3/30/26 | 73.1 11.1 | 1420 | 52.6 5.8 | 0007 | 41.3 2.1 | 94 44 | 23 6 | 1.8 0.8 | 8.9 2.3 | 0522 | NW | 325 | 0.00 | 5.41 | 0.096 0.078 | 272 236 | 100 10 |
| Lower Bennett Valley | 3/30/26 | 76.7 8.3 | 1431 | 42.2 2.8 | 0519 | 48.0 2.8 | 97 3 | 31 11 | 2.0 0.3 | 9.8 1.0 | 2344 | N | 5 | 0.00 | 22.06 | 0.094 0.066 | 279 204 | 80 20 |
| Kenwood (Wildwood) | 3/30/26 | 76.9 8.8 | 1451 | 46.8 1.1 | 0700 | 46.2 1.5 | 90 0 | 27 8 | 2.6 0.5 | 10.7 2.8 | 0036 | NNE | 12 | 0.00 | 26.90 | 0.097 0.063 | 286 176 | 100 0 |
| Sonoma Valley (Bedrock) | 3/30/26 | 77.2 9.0 | 1454 | 45.9 2.9 | 0654 | 45.5 4.0 | 83 10 | 23 12 | - | - | - | - | 0.00 | 23.11 | - | - | 80 10 |
| Sonoma-West (Arnold) | 3/30/26 | 79.0 9.3 | 1425 | 44.5 2.9 | 0628 | 48.2 4.2 | 88 7 | 34 16 | 2.1 0.0 | 17.0 1.1 | 0024 | NNW | 348 | 0.00 | 17.20 | 0.106 0.083 | 320 243 | 80 10 |
| Sonoma Valley HS | 3/30/26 | 77.7 9.5 | 1459 | 47.6 2.5 | 0703 | 50.5 2.5 | 93 7 | 35 12 | 1.4 0.2 | 9.4 1.9 | 0043 | NNE | 16 | 0.00 | 5.29 | 0.094 0.068 | 290 221 | 80 10 |
| Sonoma East (Bundschu01) | 3/30/26 | 75.0 12.2 | 1434 | 46.0 3.8 | 0706 | 48.5 3.6 | 88 9 | 38 20 | 2.4 0.2 | 12.1 4.8 | 1717 | SE | 133 | 0.00 | 17.48 | 0.099 0.081 | 289 234 | 80 10 |
| Schellville (Sasaki) | 2/4/26 | 70.2 | 1502 | 39.9 | 0001 | 48.4 | 98 | 51 | 2.9 | 11.8 | 1113 | NE | 34 | 0.00 | 0.00 | - | - | 0 |
| Sonoma-SE (Napoli) | 3/30/26 | 76.2 11.7 | 1449 | 45.7 3.2 | 0708 | 48.6 3.5 | 88 8 | 37 19 | 1.0 0.4 | 10.5 2.7 | 1609 | SSE | 151 | 0.00 | 14.95 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 3/30/26 | 75.2 11.8 | 1434 | 46.0 1.8 | 0711 | 48.7 3.1 | 91 5 | 38 18 | 2.8 0.7 | 11.7 2.0 | 0031 | NW | 313 | 0.00 | 18.75 | 0.104 0.092 | 309 227 | 50 10 |
| Carneros (Ranch 71) | 3/30/26 | 74.7 11.3 | 1509 | 56.0 1.8 | 0009 | 46.6 1.8 | 81 3 | 38 20 | 1.8 1.4 | 11.0 4.0 | 2325 | W | 271 | 0.00 | 16.20 | 0.093 0.106 | 287 237 | 50 10 |
| Carneros Upper (Ranch 81) | 3/30/26 | 75.4 11.3 | 1456 | 56.1 0.4 | 0008 | 46.2 2.2 | - | - | 2.9 2.1 | 13.0 4.3 | 1611 | S | 170 | - | - | - | - | 80 10 |
| Carneros Lower (Ranch 81) | 3/30/26 | 76.1 16.6 | 1452 | 47.7 3.2 | 0617 | 49.8 4.9 | 88 12 | 39 38 | 1.3 0.4 | 10.5 3.4 | 1600 | SSE | 168 | 0.00 | 16.94 | 0.079 0.051 | 234 172 | 0 0 |
| Rohnert Park-West (Stony Point) | 3/30/26 | 73.8 8.6 | 1412 | 43.4 5.1 | 0706 | 50.2 2.7 | 98 1 | 47 19 | 1.6 0.1 | 9.6 2.2 | 1538 | SW | 227 | 0.00 | 6.33 | - | - | 0 0 |
| Cartograph Wines Base | 3/30/26 | 71.5 8.8 | 1320 | 53.3 1.6 | 2214 | 49.4 0.7 | 95 11 | 41 10 | 2.9 0.3 | 14.8 0.2 | 1933 | SSW | 212 | 0.00 | 22.43 | 0.093 0.073 | 297 203 | 0 0 |
| Cartograph Wines Remote | 3/30/26 | 74.3 6.6 | 1335 | 46.8 3.2 | 0706 | - | - | - | - | - | - | - | - | - | - | - | 10 10 |
| Rice-Spivak Vineyard | 3/30/26 | 73.1 7.4 | 1407 | 39.5 3.8 | 0513 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Penngrove (Asellus) | 3/30/26 | 76.8 7.2 | 1421 | 45.5 4.9 | 0706 | 48.4 3.2 | 92 4 | 29 12 | 2.6 0.7 | 10.6 0.6 | 0027 | NNE | 16 | 0.00 | 45.71 | - | - | 0 0 |
| Petaluma (Ranch 10) | 3/30/26 | 78.2 10.4 | 1437 | 44.3 3.6 | 0701 | 47.0 3.7 | 93 3 | 23 7 | 1.7 0.2 | 11.8 1.8 | 0029 | NNW | 336 | 0.00 | 15.67 | 0.098 0.067 | 276 206 | 100 10 |
| Max | 79.0 | - | 56.1 | - | 50.5 | 98 | 47 | 2.9 | 17.0 | - | - | 0.00 | 45.71 | 0.106 | 320 | - | |
| Avg | - | - | - | - | 47.7 | - | - | 2.1 | - | - | - | - | - | - | - | - | |
| Min | 71.5 | - | 39.5 | - | 41.3 | 81 | 23 | 1.0 | 8.9 | - | - | 0.00 | 5.29 | 0.079 | 234 | - |