| Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | RH (%) | Max RH (%) | 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) | 12/4/23 | 68.2 10.0 | 1317 | 49.7 0.3 | 0626 | 50.5 0.6 | 80 | 94 6 | 55 26 | 2.7 | 12.8 2.8 | 1510 | WNW | 288 | 0.00 | 6.39 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 12/4/23 | 64.0 7.6 | 1331 | 48.0 0.1 | 0203 | 49.1 0.2 | 84 | 100 0 | 60 24 | 6.6 | 17.8 3.7 | 1551 | NNW | 331 | 0.00 | 6.45 | 0.063 0.039 | 260 137 | 0 0 |
| Cloverdale-East (Ranch 83) | 12/4/23 | 69.1 9.0 | 1450 | 45.9 3.1 | 2334 | 47.8 7.4 | 83 | 100 0 | 0 0 | 3.9 | 15.7 7.1 | 0642 | N | 2 | 0.00 | 4.54 | 0.054 0.031 | 208 113 | 0 0 |
| Cloverdale-SE (Ranch 38) | 12/4/23 | 68.0 8.8 | 1508 | 49.3 0.7 | 0702 | 52.1 0.4 | 86 | 100 1 | 59 24 | 6.1 | 18.8 5.6 | 0729 | N | 2 | 0.00 | 4.72 | 0.057 0.037 | 225 138 | 0 0 |
| Geyserville-North (Hoffman) | 12/4/23 | 71.0 11.1 | 1506 | 43.6 4.1 | 0525 | 49.6 2.5 | 89 | 100 2 | 57 26 | 1.2 | 7.9 2.0 | 1405 | W | 281 | 0.00 | 3.68 | 0.056 0.036 | 232 157 | 0 0 |
| Geyserville (Ranch 3) | 12/4/23 | 69.8 10.8 | 1456 | 44.3 3.4 | 0349 | 50.2 3.0 | 90 | 100 0 | 56 30 | 1.0 | 8.0 2.1 | 1353 | WSW | 237 | 0.00 | 3.82 | 0.050 0.032 | 209 133 | 0 0 |
| Geyserville-East (Ranch 40) | 12/4/23 | 70.9 9.3 | 1417 | 47.2 3.1 | 0733 | 52.7 0.2 | 88 | 100 0 | 59 20 | 2.4 | 12.9 4.5 | 1559 | SSE | 161 | 0.01 | 3.86 | 0.061 0.041 | 245 156 | 0 0 |
| Geyserville-South (Nervo Station) | 12/4/23 | 70.5 11.3 | 1503 | 47.1 1.6 | 0637 | - | - | - | - | 0.6 | 6.1 2.7 | 1606 | SW | 226 | 0.01 | 3.51 | - | - | 0 0 |
| Lytton (River Oaks) | 12/4/23 | 72.0 11.1 | 1448 | 46.2 0.2 | 2207 | 49.9 2.0 | 89 | 100 0 | 52 24 | 1.0 | 8.2 1.9 | 1352 | E | 95 | 0.01 | 3.54 | 0.048 0.028 | 208 127 | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 12/4/23 | 71.2 11.1 | 1344 | 47.2 1.4 | 0742 | 50.2 2.9 | 89 | 100 0 | 48 32 | 0.8 | 6.4 2.8 | 1513 | SW | 217 | 0.00 | 3.63 | 0.043 0.025 | 191 116 | 0 0 |
| Jimtown-NE (Red Fan) | 12/4/23 | 70.8 10.0 | 1521 | 46.1 1.3 | 0222 | 49.8 2.5 | 88 | 100 0 | 53 21 | 1.2 | 6.1 1.1 | 1523 | S | 175 | 0.00 | 3.73 | 0.050 0.030 | 215 132 | 0 0 |
| HWY 128/Chalk Hill Rd (Landslide) | 12/4/23 | 70.8 | 1447 | 44.9 | 2321 | 51.0 | 83 | 100 | 53 | 1.1 | 7.8 | 1412 | NW | 313 | 0.02 | 3.62 | 0.008 | 0 | 0 |
| N Chalk Hill Rd (Ranch 63) | 12/4/23 | 68.6 9.2 | 1513 | 45.9 1.5 | 0736 | 49.7 2.1 | 89 | 100 0 | 56 26 | 1.2 | 7.8 0.7 | 1533 | S | 177 | 0.01 | 3.58 | 0.048 0.029 | 207 122 | - |
| Knights Valley (Bavarian Lion) | 12/4/23 | 70.2 10.3 | 1503 | 45.1 3.8 | 0722 | 49.9 2.8 | 91 | 100 0 | 51 24 | 1.3 | 6.4 3.2 | 1603 | W | 264 | 0.01 | 3.95 | 0.049 0.026 | 224 127 | - |
| Upper Dry Creek Valley | 10/31/23 | 79.7 1.1 | 1557 | 33.8 1.1 | 0612 | 36.7 1.8 | 68 | 98 1 | 12 1 | 0.8 | 5.7 1.1 | 1510 | SSW | 193 | 0.00 | 1.24 | 0.088 0.010 | 339 28 | 10 10 |
| Lower Dry Creek Valley | 10/2/23 | 82.2 2.8 | 1602 | 41.9 6.0 | 0701 | 46.2 5.6 | 68 | 100 0 | 21 8 | 2.6 | 14.1 1.5 | 1608 | WNW | 303 | 0.00 | 0.52 | 0.145 0.022 | 450 20 | 100 20 |
| Max | 72.0 | - | 49.7 | - | 52.7 | 91 | 100 | 60 | 6.6 | 18.8 | - | - | 0.02 | 6.45 | 0.063 | 260 | - | |
| Avg | - | - | - | - | 50.2 | 87 | - | - | 2.2 | - | - | - | - | - | - | - | - | |
| Min | 64.0 | - | 43.6 | - | 47.8 | 80 | 94 | 0 | 0.6 | 6.1 | - | - | 0.00 | 3.51 | 0.008 | 0 | - |
| Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | Max RH (%) | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Healdsburg-South (Sodini) | 12/4/23 | 69.5 8.1 | 1453 | 46.4 0.5 | 0410 | 51.2 0.7 | 100 0 | 58 18 | 0.8 0.4 | 6.8 0.7 | 1516 | SSW | 205 | 0.01 | 3.04 | - | - | 0 0 |
| Windsor-NW (Ranch 8) | 12/4/23 | 71.0 6.4 | 1352 | 47.8 1.1 | 0414 | 49.9 0.4 | 88 0 | 63 13 | 1.1 0.5 | 7.7 0.4 | 1814 | ESE | 107 | 0.01 | 3.75 | 0.046 0.021 | 198 102 | 0 0 |
| Windsor-East (Ranch 16) | 12/4/23 | 70.5 8.3 | 1436 | 43.0 1.7 | 0408 | 49.4 1.8 | 100 0 | 55 15 | 0.8 0.1 | 6.7 2.4 | 1613 | S | 172 | 0.00 | 2.94 | 0.051 0.024 | 215 112 | 0 0 |
| Mark West-North (Ranch 14) | 12/4/23 | 69.6 8.2 | 1432 | 45.4 1.5 | 0326 | 49.8 1.1 | 99 1 | 56 14 | 0.6 0.1 | 6.2 1.1 | 1603 | SSW | 195 | 0.00 | 3.19 | 0.005 0.002 | 0 0 | 0 0 |
| Windsor-SE (Silk Rd) | 12/4/23 | 68.6 6.4 | 1400 | 44.6 0.0 | 0046 | 50.2 1.0 | 100 0 | 58 15 | 0.8 0.1 | 6.9 3.2 | 1558 | SE | 140 | 0.01 | 3.95 | 0.048 0.020 | 207 94 | 0 0 |
| Fulton-NW (Ranch 5) | 12/4/23 | 66.5 4.3 | 1429 | 45.6 1.9 | 0312 | 50.5 1.8 | 100 0 | 64 7 | 1.0 0.0 | 7.5 4.1 | 1546 | SSE | 151 | 0.00 | 2.99 | 0.042 0.015 | 181 75 | 0 0 |
| Windsor-South (Laughlin Rd) | 12/4/23 | 68.8 5.6 | 1328 | 45.7 1.1 | 0342 | - | - | - | - | - | - | - | 0.00 | 3.46 | - | - | 0 0 |
| Fulton-SE (Barnes Rd) | 12/4/23 | 66.6 5.0 | 1458 | 44.2 3.1 | 0603 | 50.0 2.4 | 100 1 | 64 9 | 0.5 0.5 | 6.6 2.5 | 1638 | SSE | 158 | 0.00 | 2.04 | - | - | - |
| Fulton-SW (Ranch 21) | 12/4/23 | 67.1 5.3 | 1329 | 44.4 3.2 | 0710 | - | - | - | 1.5 0.1 | 8.3 2.6 | 1525 | S | 185 | 0.01 | 3.02 | 0.048 0.016 | 198 83 | 0 0 |
| Santa Rosa-NW (Goldfields) | 12/4/23 | 70.8 6.9 | 1344 | 44.8 2.5 | 0704 | 50.7 1.9 | 100 0 | 56 13 | 1.4 0.1 | 7.7 1.3 | 1543 | SSE | 159 | 0.01 | 3.08 | 0.041 0.015 | 174 73 | - |
| NW Santa Rosa (Piner Road) | 12/4/23 | 66.8 4.1 | 1512 | 44.9 1.3 | 0716 | 50.5 1.6 | 100 0 | 68 6 | 0.8 0.2 | 7.2 1.4 | 1523 | SSW | 209 | 0.00 | 2.76 | - | - | - |
| River Rd South (Denner Ranch) | 12/4/23 | 67.9 5.5 | 1341 | 45.3 1.5 | 0256 | 50.3 1.4 | 100 0 | 0 70 | 1.6 0.3 | 9.6 0.9 | 1532 | S | 176 | - | - | - | - | - |
| West Santa Rosa (LOV Vineyard) | 12/4/23 | 68.8 6.7 | 1447 | 46.3 0.5 | 0424 | 50.5 1.2 | 100 0 | 60 10 | 0.7 0.1 | 7.4 0.7 | 1537 | S | 190 | 0.01 | 3.22 | 0.004 0.000 | 1 0 | 0 0 |
| Guerneville Rd (Prokopakis) | 12/4/23 | 68.8 6.2 | 1534 | 45.6 0.4 | 0146 | 50.6 1.4 | 100 0 | 63 8 | - | - | - | - | 0.01 | 2.65 | - | - | - |
| Guerneville Rd West (Balletto) | 12/4/23 | 67.1 5.1 | 1441 | 45.1 0.1 | 0033 | 50.5 1.1 | 100 0 | 67 6 | 1.1 0.1 | 7.8 2.5 | 1515 | S | 181 | 0.00 | 3.38 | - | - | - |
| Guerneville Rd East (Rich Ranch) | 12/4/23 | 67.6 5.3 | 1427 | 44.8 1.8 | 0716 | 50.3 1.7 | 100 0 | 60 9 | - | - | - | - | - | - | - | - | 0 0 |
| Occidental Rd (Sebastopol) | 12/4/23 | 67.2 4.8 | 1449 | 45.2 0.5 | 0220 | 52.4 1.8 | 100 0 | 94 4 | 1.0 0.2 | 8.8 0.0 | 1531 | S | 180 | 0.01 | 2.83 | - | - | - |
| Lower Westside Rd (Ranch 12) | 12/4/23 | 69.9 7.1 | 1336 | 45.2 2.1 | 0317 | 50.6 1.2 | 100 0 | 56 14 | 0.0 0.0 | 0.0 0.0 | 0001 | N | 355 | 0.00 | 3.99 | 0.056 0.026 | 239 109 | 0 0 |
| Guerneville (Laughlin Rd) | 12/4/23 | 67.2 4.2 | 1322 | 47.6 3.0 | 0743 | 51.9 0.9 | 100 0 | 66 4 | 0.6 0.1 | 5.5 1.4 | 1321 | SSE | 151 | 0.01 | 6.22 | - | - | 0 0 |
| Korbel (Winery) | 12/4/23 | 67.8 5.3 | 1421 | 48.3 1.8 | 0654 | 52.3 0.9 | 100 0 | 66 8 | 0.7 0.1 | 4.8 1.3 | 1457 | W | 276 | 0.01 | 6.25 | - | - | 0 0 |
| Forestville (Shone Farms) | 12/4/23 | 68.4 4.9 | 1457 | 44.2 3.1 | 0410 | 50.9 1.4 | 99 0 | 64 10 | 1.1 0.2 | 7.2 2.0 | 1517 | E | 89 | 0.01 | 4.30 | 0.049 0.017 | 207 79 | 0 0 |
| Forestville-NE (Ranch 30) | 12/4/23 | 69.8 4.1 | 1338 | 46.4 1.2 | 0430 | 51.2 1.1 | 100 0 | 62 10 | 1.2 0.1 | 8.3 0.9 | 1525 | SE | 131 | 0.00 | 4.20 | 0.051 0.020 | 214 81 | 0 0 |
| Green Valley Vineyard | 12/4/23 | 67.5 5.9 | 1442 | 44.8 3.9 | 0527 | 50.2 1.8 | 99 0 | 64 7 | 0.9 0.6 | 7.2 3.3 | 1500 | SW | 227 | 0.00 | 6.24 | 0.019 0.012 | 69 61 | - |
| Green Valley (Sanchietti) | 12/4/23 | 68.9 6.7 | 1421 | 44.1 0.7 | 0524 | - | - | - | - | - | - | - | - | - | - | - | - |
| Graton-West (Dutton Ranch) | 12/4/23 | 68.6 5.6 | 1359 | 43.3 2.1 | 0450 | 51.0 2.3 | 100 0 | 69 15 | 0.8 0.0 | 7.2 1.4 | 1513 | SSW | 208 | 0.01 | 6.64 | - | - | 0 0 |
| Graton-South (Mill Station Rd) | 12/4/23 | 66.5 4.6 | 1342 | 42.9 1.0 | 0222 | 49.4 2.1 | 100 0 | 67 6 | 0.1 0.0 | 5.3 0.0 | 1517 | SW | 214 | 0.01 | 4.32 | - | - | 0 0 |
| Occidental (Horseshoe Bend) | 12/4/23 | 64.5 4.5 | 1347 | 48.3 1.9 | 0720 | 51.6 1.0 | 99 0 | 70 6 | - | - | - | - | 0.00 | 6.18 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 12/4/23 | 66.0 3.5 | 1302 | 44.0 1.9 | 0308 | 49.5 2.3 | 99 0 | 69 5 | 0.6 0.2 | 6.4 1.6 | 1505 | W | 265 | 0.00 | 5.59 | - | - | - |
| Sebastopol Hills (Burnside Rd) | 12/4/23 | 64.4 4.3 | 1303 | 47.1 2.5 | 0727 | 51.6 1.8 | 100 0 | 74 5 | 1.1 0.7 | 9.3 0.3 | 1507 | SSW | 192 | 0.01 | 4.95 | - | - | - |
| Seaview/Fort Ross (Hirsch) | 12/4/23 | 61.1 5.5 | 1152 | 50.8 0.8 | 0011 | 51.0 0.7 | 96 1 | 73 15 | 1.9 0.4 | 8.8 0.9 | 1524 | N | 350 | 0.00 | 8.38 | 0.051 0.029 | 231 126 | 0 0 |
| Max | 71.0 | - | 50.8 | - | 52.4 | 100 | 94 | 1.9 | 9.6 | - | - | 0.01 | 8.38 | 0.056 | 239 | - | |
| Avg | - | - | - | - | 50.7 | - | - | 0.9 | - | - | - | - | - | - | - | - | |
| Min | 61.1 | - | 42.9 | - | 49.4 | 88 | 0 | 0.0 | 0.0 | - | - | 0.00 | 2.04 | 0.004 | 0 | - |
| Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | Max RH (%) | 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 | 12/4/23 | 64.1 5.8 | 1519 | 46.3 3.0 | 0537 | 49.9 1.7 | 97 2 | 61 14 | 1.8 0.2 | 7.2 0.6 | 1353 | SE | 129 | 0.00 | 4.35 | 0.061 0.039 | 266 173 | - |
| Lower Bennett Valley | 12/4/23 | 65.9 5.5 | 1428 | 38.5 3.2 | 0709 | 46.5 5.4 | 100 0 | 61 14 | 1.3 0.1 | 8.6 0.3 | 1039 | NNW | 330 | 0.00 | 3.87 | 0.053 0.031 | 236 143 | 0 0 |
| Kenwood (Wildwood) | 12/4/23 | 67.7 7.6 | 1455 | 40.2 4.4 | 0637 | 47.7 5.1 | 100 0 | 60 19 | 2.1 0.0 | 8.3 2.6 | 1146 | SSE | 149 | 0.00 | 3.97 | 0.055 0.027 | 238 109 | - |
| Sonoma Valley (Bedrock) | 12/4/23 | 65.9 5.5 | 1412 | 41.7 6.3 | 0638 | 47.6 4.0 | - | - | 1.3 0.1 | 9.1 3.7 | 1211 | SW | 215 | 0.01 | 3.91 | - | - | - |
| Sonoma-West (Arnold) | 12/4/23 | 68.8 5.1 | 1538 | 41.8 4.8 | 0522 | 47.9 4.5 | 98 1 | 54 9 | 1.1 0.7 | 7.3 5.8 | 1608 | WSW | 237 | 0.00 | 4.08 | 0.047 0.013 | 192 75 | - |
| Sonoma Valley HS | 12/4/23 | 66.6 3.5 | 1516 | 43.8 3.1 | 0718 | 49.6 4.0 | 100 0 | 62 8 | 0.8 0.3 | 6.6 1.0 | 1105 | SSW | 192 | 0.00 | 4.44 | 0.052 0.016 | 237 84 | - |
| Sonoma East (Bundschu01) | 12/4/23 | 67.8 4.8 | 1442 | 41.6 3.1 | 0739 | 47.9 4.3 | 99 1 | 56 10 | 1.4 1.0 | 9.4 1.5 | 1109 | SW | 236 | 0.00 | 3.95 | 0.055 0.016 | 247 86 | - |
| Schellville (Sasaki) | 12/4/23 | 70.0 3.3 | 1446 | 43.1 3.5 | 0717 | 48.9 4.1 | 98 1 | 51 10 | 0.6 0.1 | 6.8 1.3 | 1142 | W | 274 | 0.00 | 1.08 | - | - | 0 0 |
| Sonoma-SE (Napoli) | 12/4/23 | 72.1 6.8 | 1441 | 43.3 2.5 | 0714 | 48.2 4.0 | 98 2 | 47 14 | 0.8 0.5 | 7.4 3.7 | 1058 | SSW | 195 | 0.00 | 3.04 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 12/4/23 | 68.4 3.9 | 1442 | 43.0 5.2 | 0535 | 48.9 4.0 | 100 1 | 53 11 | 1.6 1.3 | 8.4 4.8 | 1206 | S | 191 | 0.01 | 2.82 | 0.059 0.011 | 258 71 | - |
| Carneros (Ranch 71) | 12/4/23 | 66.9 3.8 | 1508 | 46.5 5.0 | 0557 | 50.7 2.3 | 100 1 | 56 10 | 2.0 1.3 | 8.2 8.5 | 1420 | W | 261 | 0.00 | 2.86 | 0.057 0.012 | 249 65 | 0 0 |
| Carneros Upper (Ranch 81) | 12/4/23 | 68.5 5.5 | 1342 | 47.4 4.6 | 0604 | 50.6 2.3 | 100 0 | 50 12 | 3.1 1.8 | 8.9 8.1 | 1352 | SW | 218 | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 12/4/23 | 69.8 5.0 | 1336 | 42.6 2.8 | 0712 | 48.4 4.4 | 100 0 | 51 13 | 0.9 0.1 | 7.9 1.2 | 1356 | SE | 145 | 0.00 | 3.01 | 0.049 0.010 | 207 40 | 0 0 |
| Rohnert Park-West (Stony Point) | 12/4/23 | 66.5 4.5 | 1425 | 46.5 0.5 | 0654 | 50.9 2.2 | 100 1 | 70 2 | 1.5 0.3 | 11.7 2.3 | 1527 | SW | 229 | 0.01 | 3.56 | - | - | - |
| Penngrove (Asellus) | 12/4/23 | 68.2 6.7 | 1429 | 45.0 3.2 | 0737 | 50.8 2.4 | 100 1 | 59 10 | 1.6 0.1 | 7.4 1.4 | 1518 | W | 259 | 0.01 | 3.52 | - | - | 0 0 |
| Roger's Creek (Ranch 50) | 12/4/23 | 65.5 6.3 | 1447 | 47.4 2.2 | 0813 | 50.9 1.8 | 100 0 | 58 18 | 2.1 0.8 | 12.7 4.1 | 1612 | W | 268 | 0.00 | 3.81 | 0.051 0.015 | 231 70 | 0 0 |
| Petaluma (Ranch 10) | 12/4/23 | 71.4 6.7 | 1522 | 46.1 0.9 | 0818 | 51.2 1.7 | 100 0 | 50 17 | 1.3 0.2 | 8.6 4.0 | 1540 | W | 262 | 0.00 | 2.87 | 0.050 0.015 | 214 78 | 0 0 |
| Max | 72.1 | - | 47.4 | - | 51.2 | 100 | 70 | 3.1 | 12.7 | - | - | 0.01 | 4.44 | 0.061 | 266 | - | |
| Avg | - | - | - | - | 49.2 | - | - | 1.5 | - | - | - | - | - | - | - | - | |
| Min | 64.1 | - | 38.5 | - | 46.5 | 97 | 47 | 0.6 | 6.6 | - | - | 0.00 | 1.08 | 0.047 | 192 | - |