| 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) | 3/12/26 | 76.3 0.0 | 1525 | 50.1 6.1 | 0610 | 33.1 2.9 | 40 | 64 7 | 8 12 | 4.4 | 18.6 2.8 | 1655 | W | 278 | 0.00 | 36.97 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 3/12/26 | 71.2 0.1 | 1520 | 47.7 5.2 | 0420 | 32.0 2.9 | 42 | 67 4 | 11 12 | 13.4 | 25.0 0.7 | 2350 | NW | 323 | 0.00 | 37.66 | 0.215 0.038 | 532 21 | 0 0 |
| Cloverdale-East (Ranch 83) | 3/12/26 | 81.7 2.6 | 1532 | 47.8 2.9 | 0136 | 40.6 0.8 | - | - | - | 5.8 | 18.7 1.5 | 0737 | NNE | 15 | 0.00 | 30.99 | 0.164 0.014 | 472 17 | 0 0 |
| Cloverdale-SE (Ranch 38) | 3/12/26 | 81.8 2.4 | 1549 | 49.9 4.3 | 0753 | 40.7 0.4 | 49 | 72 2 | 18 1 | 8.4 | 21.6 1.8 | 0713 | N | 5 | 0.00 | 32.45 | 0.176 0.023 | 442 17 | 0 0 |
| Geyserville-North (Hoffman) | 3/12/26 | 86.5 2.7 | 1540 | 47.2 4.2 | 0712 | 40.1 1.2 | 49 | 78 3 | 14 8 | 3.4 | 10.8 1.1 | 1019 | WNW | 285 | 0.00 | 25.50 | 0.144 0.017 | 438 17 | 0 0 |
| Geyserville (Ranch 3) | 3/12/26 | 83.2 3.8 | 1610 | 47.8 4.2 | 0744 | 37.9 1.4 | 44 | 78 2 | 10 10 | 4.8 | 12.8 1.4 | 0843 | WNW | 289 | 0.00 | 31.63 | 0.168 0.030 | 471 18 | 0 0 |
| Geyserville-East (Ranch 40) | 3/12/26 | 85.3 4.9 | 1520 | 47.1 3.0 | 0656 | 41.0 0.8 | 48 | 80 0 | 16 8 | 4.0 | 15.1 0.8 | 1708 | NW | 321 | 0.00 | 32.10 | 0.169 0.016 | 490 19 | 0 0 |
| Geyserville-South (Nervo Station) | 3/12/26 | 83.1 4.4 | 1603 | 47.3 3.4 | 0705 | - | - | - | - | 2.4 | 12.1 2.0 | 0139 | WNW | 297 | 0.00 | 24.64 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 3/12/26 | 83.7 1.6 | 1624 | 39.3 2.8 | 0704 | 40.1 0.1 | 59 | 100 0 | 14 4 | 1.6 | 12.5 4.4 | 2247 | WNW | 298 | 0.00 | 29.34 | 0.126 0.013 | 429 20 | 0 0 |
| HWY 128/Chalk Hill Rd (Landslide) | 3/12/26 | 83.2 2.1 | 1609 | 38.9 1.6 | 0757 | 44.0 2.1 | 70 | 98 0 | 18 3 | 1.7 | 9.0 1.2 | 1555 | SSW | 196 | 0.00 | 28.06 | 0.126 0.009 | 419 18 | 90 20 |
| N Chalk Hill Rd (Ranch 63) | 3/12/26 | 81.6 3.4 | 1701 | 36.9 1.0 | 0711 | 41.8 1.4 | 66 | 100 0 | 20 2 | 1.3 | 7.8 3.3 | 1824 | W | 262 | 0.00 | 29.61 | 0.125 0.007 | 426 15 | 90 20 |
| Knights Valley (Bavarian Lion) | 3/12/26 | 83.2 4.1 | 1643 | 33.9 1.4 | 0749 | 41.8 2.4 | 69 | 98 1 | 18 2 | 2.0 | 9.6 0.2 | 1847 | WNW | 286 | 0.00 | 27.72 | 0.137 0.009 | 468 14 | 0 0 |
| Upper Dry Creek Valley | 3/12/26 | 83.4 2.3 | 1501 | 45.3 4.1 | 0642 | 37.7 1.8 | 47 | 82 3 | 9 8 | 2.5 | 14.7 4.3 | 1816 | WNW | 286 | 0.00 | 34.53 | 0.167 0.030 | 503 21 | 0 0 |
| Lower Dry Creek Valley | 3/12/26 | 84.2 0.1 | 1648 | 40.3 1.8 | 0752 | 40.4 0.1 | 54 | 100 0 | 10 6 | 2.2 | 14.3 1.9 | 1749 | N | 355 | 0.00 | 33.46 | 0.147 0.012 | 464 16 | 0 0 |
| Max | 86.5 | - | 50.1 | - | 44.0 | 70 | 100 | 20 | 13.4 | 25.0 | - | - | 0.00 | 37.66 | 0.215 | 532 | - | |
| Avg | - | - | - | - | 39.3 | 53 | - | - | 4.2 | - | - | - | - | - | - | - | - | |
| Min | 71.2 | - | 33.9 | - | 32.0 | 40 | 64 | 8 | 1.3 | 7.8 | - | - | 0.00 | 24.64 | 0.125 | 419 | - |
| 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) | 3/12/26 | 83.0 0.8 | 1539 | 44.6 2.3 | 0717 | 47.9 4.4 | 66 | 85 1 | 30 6 | 0.9 | 8.0 2.3 | 1229 | 0.00 | 29.12 | 0.139 0.003 | 488 16 | 100 |
| Windsor-East (Ranch 16) | 3/12/26 | 82.0 3.4 | 1505 | 43.4 4.7 | 0049 | 44.2 3.4 | 58 | 96 7 | 22 1 | 3.9 | 13.1 0.4 | 0443 | 0.00 | 21.96 | 0.156 0.009 | 487 17 | 0 |
| Mark West-North (Ranch 14) | 3/12/26 | 80.7 2.7 | 1527 | 41.5 0.6 | 0704 | 44.5 3.9 | 64 | 95 5 | 21 1 | 1.1 | 9.5 0.0 | 1703 | 0.00 | 23.74 | 0.022 0.008 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 3/12/26 | 79.9 1.3 | 1525 | 37.4 0.8 | 0742 | 45.0 3.8 | 73 | 99 0 | 27 8 | 1.5 | 9.3 1.5 | 1125 | 0.00 | 21.14 | 0.138 0.004 | 482 15 | 0 |
| Fulton-NW (Ranch 5) | 3/12/26 | 78.4 2.2 | 1459 | 38.7 0.7 | 0725 | 45.1 3.3 | 72 | 100 3 | 25 4 | 1.6 | 9.8 0.1 | 1537 | 0.00 | 23.97 | 0.144 0.005 | 492 17 | 0 |
| 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) | 3/12/26 | 79.5 2.2 | 1532 | 41.0 2.1 | 0725 | 45.6 3.6 | 68 | 94 1 | 26 1 | 1.6 | 9.4 0.5 | 1602 | 0.00 | 23.01 | - | - | 0 |
| Fulton-SW (Ranch 21) | 3/12/26 | 78.7 2.2 | 1435 | 39.1 1.8 | 0730 | 45.1 2.8 | 72 | 100 0 | 0 0 | 1.9 | 9.3 1.0 | 1617 | 0.00 | 23.44 | 0.149 0.008 | 520 19 | 0 |
| NW Santa Rosa (Piner Road) | 3/12/26 | 77.5 0.7 | 1549 | 37.8 1.2 | 0734 | 47.5 3.0 | 79 | 100 0 | 31 3 | 1.2 | 7.9 2.5 | 1539 | 0.00 | 21.90 | - | - | 0 |
| River Rd South (Denner Ranch) | 3/12/26 | 79.2 0.4 | 1430 | 39.3 1.8 | 0741 | 47.0 3.5 | 77 | 100 0 | 26 5 | 2.0 | 11.2 0.0 | 1704 | - | - | - | - | 0 |
| West Santa Rosa (LOV Vineyard) | 3/12/26 | 77.7 0.9 | 1548 | 39.2 1.8 | 0740 | 45.5 3.5 | 73 | 98 0 | 24 5 | 1.1 | 9.0 1.9 | 1619 | 0.00 | 16.60 | 0.019 0.009 | 0 0 | 0 |
| Guerneville Rd (Prokopakis) | 3/12/26 | 78.4 0.5 | 1549 | 41.3 2.8 | 0728 | 46.2 3.1 | 72 | 98 0 | 18 2 | - | - | - | 0.00 | 23.03 | - | - | 0 |
| Guerneville Rd West (Balletto) | 3/12/26 | 77.1 0.6 | 1529 | 38.6 1.3 | 0733 | 46.8 2.9 | 77 | 100 0 | 29 4 | 1.8 | 10.1 0.4 | 1529 | 0.00 | 22.55 | - | - | 0 |
| Sanchietti Ranch | 3/12/26 | 76.1 0.2 | 1412 | 39.3 1.0 | 0719 | 48.0 3.0 | - | 98 0 | 32 2 | 2.2 | 10.0 0.0 | 1616 | 0.00 | 23.50 | - | - | 0 |
| Occidental Rd (Sebastopol) | 3/12/26 | 77.9 1.3 | 1532 | 39.4 2.0 | 0708 | 51.1 3.3 | 90 | 100 0 | 43 7 | 1.6 | 9.2 3.1 | 1512 | 0.00 | 6.95 | - | - | 0 |
| Lower Westside Rd (Ranch 12) | 3/12/26 | 80.8 1.5 | 1458 | 39.4 2.4 | 0737 | 45.5 4.2 | 71 | 97 0 | 27 9 | 1.0 | 9.2 0.6 | 1524 | 0.00 | 28.30 | - | - | 90 |
| Guerneville (Laughlin Rd) | 3/12/26 | 79.9 2.0 | 1437 | 39.0 2.7 | 0506 | 44.7 2.3 | 75 | 98 0 | 22 1 | 1.0 | 11.5 1.0 | 1537 | 0.00 | 39.24 | - | - | 0 |
| Korbel (Winery) | 3/12/26 | 81.8 4.4 | 1457 | 41.8 2.5 | 0811 | 46.8 3.0 | 75 | 100 0 | 21 5 | 0.7 | 7.9 4.3 | 1647 | 0.01 | 36.61 | - | - | 0 |
| Forestville (Shone Farms) | 3/12/26 | 79.5 0.2 | 1514 | 41.0 2.4 | 0718 | 46.4 4.5 | 70 | 96 0 | 31 12 | 1.8 | 10.5 0.7 | 1634 | 0.00 | 30.31 | 0.136 0.006 | 467 17 | 0 |
| Forestville-NE (Ranch 30) | 3/12/26 | 78.4 0.9 | 1601 | 40.8 2.9 | 0756 | 48.0 4.1 | 75 | 100 0 | 36 11 | 1.5 | 11.2 0.7 | 1522 | 0.00 | 28.46 | 0.143 0.007 | 480 15 | 100 |
| Green Valley Vineyard | 3/12/26 | 78.6 2.6 | 1637 | 41.7 2.9 | 0636 | 45.9 4.1 | 70 | 96 0 | 21 1 | 2.2 | 11.6 0.0 | 1643 | 0.00 | 35.04 | 0.041 0.012 | 75 69 | 0 |
| Green Valley (Sanchietti) | 3/12/26 | 77.8 0.6 | 1501 | 36.5 1.1 | 0735 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| Keefer Ranch (Green Valley) | 3/12/26 | 78.7 3.5 | 1648 | 35.9 1.1 | 0719 | 45.9 2.9 | 78 | 99 0 | 38 9 | - | - | - | 0.00 | 31.31 | - | - | 0 |
| Graton-South (Mill Station Rd) | 3/12/26 | 74.3 0.9 | 1350 | 36.4 1.4 | 0707 | 45.2 2.8 | 74 | 99 0 | 37 14 | 0.4 | 6.8 0.6 | 1426 | 0.00 | 27.62 | - | - | 0 |
| Occidental (Horseshoe Bend) | 3/12/26 | 72.0 1.1 | 1610 | 47.1 4.1 | 0738 | 45.0 3.4 | - | 84 4 | 33 5 | - | - | - | 0.00 | 32.00 | - | - | 0 |
| Sexton Valley (Jacqueline's Blk) | 3/12/26 | 74.9 0.1 | 1404 | 38.3 2.0 | 0735 | 46.3 2.5 | 78 | 100 0 | 41 8 | 1.3 | 8.6 4.1 | 1300 | 0.00 | 15.31 | - | - | 0 |
| Sebastopol Hills (Burnside Rd) | 3/12/26 | 71.9 0.8 | 1506 | 48.4 4.8 | 0801 | 46.5 2.8 | 65 | 89 5 | 47 14 | 1.6 | 10.0 0.7 | 1550 | 0.00 | 27.89 | - | - | 0 |
| Seaview/Fort Ross (Hirsch) | 3/12/26 | 74.6 4.8 | 1425 | 49.7 4.3 | 0506 | 35.4 0.7 | 40 | 65 0 | 17 13 | 3.6 | 12.7 1.9 | 1523 | 0.00 | 48.40 | 0.164 0.024 | 526 25 | 0 |
| Max | 83.0 | - | 49.7 | - | 51.1 | 90 | 100 | 47 | 3.9 | 13.1 | - | 0.01 | 48.40 | 0.164 | 526 | - | |
| Avg | - | - | - | - | 45.8 | 71 | - | - | 1.6 | - | - | - | - | - | - | - | |
| Min | 71.9 | - | 35.9 | - | 35.4 | 40 | 65 | 0 | 0.4 | 6.8 | - | 0.00 | 6.95 | 0.019 | 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 | 3/12/26 | 77.6 3.6 | 1619 | 46.7 1.6 | 0707 | 41.2 1.8 | 79 2 | 21 3 | 2.4 0.0 | 8.7 0.3 | 2343 | NE | 53 | 0.00 | 5.41 | 0.151 0.013 | 507 20 | 0 0 |
| Lower Bennett Valley | 3/12/26 | 78.3 3.0 | 1553 | 35.3 1.7 | 0645 | 43.2 1.9 | 100 0 | 21 8 | 1.5 0.1 | 9.3 0.9 | 1646 | SSW | 208 | 0.00 | 22.06 | 0.142 0.011 | 478 18 | 0 0 |
| Kenwood (Wildwood) | 3/12/26 | 80.2 3.2 | 1425 | 40.2 2.0 | 0713 | 45.1 2.2 | 98 1 | 24 4 | 3.0 0.1 | 9.1 1.5 | 1440 | N | 11 | 0.00 | 26.90 | 0.131 0.007 | 438 15 | 0 0 |
| Sonoma Valley (Bedrock) | 3/12/26 | 80.7 5.8 | 1441 | 39.4 2.5 | 0746 | 42.5 1.8 | 96 0 | 18 7 | - | - | - | - | 0.00 | 23.11 | - | - | 0 0 |
| Sonoma-West (Arnold) | 3/12/26 | 80.7 2.2 | 1542 | 38.1 2.0 | 0725 | 44.4 2.4 | 100 0 | 29 4 | 1.8 0.0 | 12.1 3.0 | 1615 | SW | 230 | 0.00 | 17.20 | 0.165 0.013 | 546 15 | 50 20 |
| Sonoma Valley HS | 3/12/26 | 79.5 3.6 | 1609 | 40.3 2.7 | 0713 | 47.3 2.2 | 100 0 | 35 2 | 1.3 0.2 | 8.2 0.7 | 1814 | WSW | 240 | 0.00 | 5.29 | 0.140 0.012 | 489 14 | 20 10 |
| Sonoma East (Bundschu01) | 3/12/26 | 79.2 2.2 | 1603 | 39.3 3.4 | 0734 | 44.6 2.2 | 97 1 | 30 3 | 1.8 0.2 | 11.8 1.8 | 1620 | SSW | 213 | 0.00 | 17.48 | 0.148 0.011 | 508 15 | 0 0 |
| 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) | 3/12/26 | 80.6 2.2 | 1610 | 40.1 3.7 | 0713 | 44.6 2.4 | 95 0 | 26 0 | 1.0 0.2 | 14.5 3.4 | 1643 | W | 261 | 0.00 | 14.95 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 3/12/26 | 79.0 0.4 | 1539 | 40.2 2.6 | 0740 | 44.5 2.1 | 95 1 | 29 5 | 3.3 0.7 | 14.6 3.9 | 1636 | W | 276 | 0.00 | 18.75 | 0.160 0.015 | 524 15 | 0 0 |
| Carneros (Ranch 71) | 3/12/26 | 77.7 0.8 | 1604 | 49.5 5.4 | 0623 | 44.9 2.2 | 79 5 | 29 2 | 3.1 0.7 | 16.4 3.0 | 1713 | WSW | 255 | 0.00 | 16.20 | 0.157 0.017 | 501 16 | 0 0 |
| Carneros Upper (Ranch 81) | 3/12/26 | 78.4 1.3 | 1550 | 49.2 3.8 | 0742 | 44.3 2.1 | - | - | 4.4 0.8 | 19.5 2.6 | 1756 | W | 275 | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 3/12/26 | 85.5 8.1 | 1536 | 41.2 2.6 | 0710 | 43.4 1.0 | 100 0 | 0 0 | 0.9 0.3 | 11.0 1.9 | 1718 | WNW | 298 | 0.00 | 16.94 | 0.107 0.003 | 365 8 | 0 0 |
| Rohnert Park-West (Stony Point) | 3/12/26 | 73.9 0.7 | 1413 | 34.4 0.1 | 0730 | 45.1 1.9 | 100 1 | 39 7 | 1.6 0.1 | 9.6 2.8 | 1513 | WSW | 239 | 0.00 | 6.33 | - | - | 0 0 |
| Cartograph Wines Base | 3/12/26 | 71.2 2.5 | 1359 | 47.1 1.6 | 0045 | 48.0 2.9 | 95 7 | 47 15 | 3.1 0.2 | 14.5 0.0 | 1613 | SSW | 209 | 0.00 | 22.43 | 0.131 0.003 | 490 16 | 0 0 |
| Cartograph Wines Remote | 3/12/26 | 72.2 1.5 | 1225 | 38.5 1.6 | 0725 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Rice-Spivak Vineyard | 3/12/26 | 71.8 3.2 | 1325 | 31.5 0.5 | 0723 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Penngrove (Asellus) | 3/12/26 | 75.4 0.2 | 1443 | 38.1 1.3 | 0729 | 44.6 2.3 | 97 0 | 30 2 | 2.3 0.6 | 9.3 3.7 | 1406 | W | 267 | 0.00 | 45.68 | - | - | 0 0 |
| Petaluma (Ranch 10) | 3/12/26 | 80.9 1.9 | 1535 | 37.6 2.7 | 0746 | 42.7 2.2 | 100 0 | 22 1 | 1.8 0.6 | 10.7 0.2 | 1640 | W | 268 | 0.00 | 15.67 | 0.140 0.014 | 445 15 | 50 20 |
| Max | 85.5 | - | 49.5 | - | 48.0 | 100 | 47 | 4.4 | 19.5 | - | - | 0.00 | 45.68 | 0.165 | 546 | - | |
| Avg | - | - | - | - | 44.4 | - | - | 2.2 | - | - | - | - | - | - | - | - | |
| Min | 71.2 | - | 31.5 | - | 41.2 | 79 | 0 | 0.9 | 8.2 | - | - | 0.00 | 5.29 | 0.107 | 365 | - |