| 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) | 3/19/26 | 90.7 0.6 | 1628 | 65.3 1.1 | 0654 | 35.0 1.4 | 24 | 45 1 | 12 2 | 2.8 | 11.8 0.2 | 1740 | W | 280 | 0.00 | 36.97 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 3/19/26 | 86.0 0.9 | 1616 | 65.8 1.8 | 0131 | 33.1 0.1 | 23 | 49 6 | 9 2 | 7.1 | 25.6 4.4 | 2346 | NNW | 338 | 0.00 | 37.66 | 0.248 0.004 | 557 4 | 0 0 |
| Cloverdale-East (Ranch 83) | 3/19/26 | 92.2 0.9 | 1520 | 54.9 0.9 | 0726 | 44.7 0.6 | - | - | - | 7.1 | 23.3 3.4 | 0522 | NNW | 344 | 0.00 | 30.99 | 0.208 0.024 | 491 2 | 30 10 |
| Cloverdale-SE (Ranch 38) | 3/19/26 | 91.9 0.3 | 1504 | 56.4 1.6 | 0735 | 45.1 0.8 | 40 | 63 2 | 13 10 | 6.8 | 18.8 4.5 | 1018 | NW | 325 | 0.00 | 32.45 | 0.213 0.028 | 461 3 | 0 0 |
| Geyserville-North (Hoffman) | 3/19/26 | 97.4 1.9 | 1536 | 47.3 3.2 | 0359 | 47.1 2.4 | 52 | 93 2 | 16 10 | 2.1 | 10.2 0.7 | 1049 | NW | 308 | 0.00 | 25.50 | 0.155 0.002 | 463 2 | 30 10 |
| Geyserville (Ranch 3) | 3/19/26 | 93.5 3.5 | 1543 | 50.2 2.0 | 0252 | 44.8 2.8 | 47 | 90 6 | 14 8 | 3.2 | 11.4 1.8 | 1027 | NW | 307 | 0.00 | 31.63 | 0.173 0.010 | 483 2 | 30 10 |
| Geyserville-East (Ranch 40) | 3/19/26 | 95.1 5.1 | 1644 | 55.3 1.9 | 0718 | 48.6 0.5 | 44 | 74 5 | 16 9 | 2.6 | 12.5 0.1 | 1831 | NW | 310 | 0.00 | 32.10 | 0.180 0.002 | 503 0 | 30 10 |
| Geyserville-South (Nervo Station) | 3/19/26 | 93.3 3.5 | 1644 | 50.4 0.8 | 0704 | - | - | - | - | 1.3 | 10.5 3.0 | 2234 | NW | 314 | 0.00 | 24.64 | - | - | 30 10 |
| Jimtown-North (Piccolo Ranch 15) | 3/19/26 | 94.3 1.5 | 1632 | 45.8 1.7 | 0727 | 49.4 0.0 | 63 | 100 0 | 16 0 | 1.1 | 7.0 0.9 | 1531 | S | 188 | 0.00 | 29.34 | 0.136 0.003 | 445 0 | 30 10 |
| HWY 128/Chalk Hill Rd (Landslide) | 3/19/26 | 97.3 5.3 | 1755 | 44.2 1.4 | 0635 | 50.9 0.1 | 69 | 100 0 | 17 3 | 1.0 | 6.7 2.5 | 1440 | NW | 306 | 0.00 | 28.06 | 0.136 0.004 | 433 2 | 50 10 |
| N Chalk Hill Rd (Ranch 63) | 3/19/26 | 92.5 2.8 | 1736 | 42.4 0.3 | 0731 | 49.8 0.1 | 68 | 100 0 | 17 3 | 0.7 | 5.7 2.1 | 1554 | NW | 323 | 0.00 | 29.61 | 0.133 0.009 | 439 1 | 50 10 |
| Knights Valley (Bavarian Lion) | 3/19/26 | 92.2 2.2 | 1734 | 42.8 1.1 | 0729 | 49.8 0.4 | 69 | 98 0 | 18 1 | 1.8 | 8.4 3.7 | 1324 | N | 0 | 0.00 | 27.72 | 0.150 0.006 | 486 3 | 40 10 |
| Upper Dry Creek Valley | 3/19/26 | 94.4 4.1 | 1703 | 46.1 0.5 | 0618 | 45.9 1.8 | 53 | 93 3 | 13 9 | 1.7 | 7.7 1.4 | 2103 | WNW | 300 | 0.00 | 34.53 | 0.163 0.005 | 523 3 | 40 10 |
| Lower Dry Creek Valley | 3/19/26 | 97.3 6.8 | 1639 | 44.4 1.4 | 0733 | 47.9 1.0 | 60 | 100 0 | 12 10 | 0.9 | 7.7 3.1 | 1046 | N | 355 | 0.00 | 33.46 | 0.147 0.012 | 483 4 | 30 10 |
| Max | 97.4 | - | 65.8 | - | 50.9 | 69 | 100 | 18 | 7.1 | 25.6 | - | - | 0.00 | 37.66 | 0.248 | 557 | - | |
| Avg | - | - | - | - | 45.5 | 51 | - | - | 2.9 | - | - | - | - | - | - | - | - | |
| Min | 86.0 | - | 42.4 | - | 33.1 | 23 | 45 | 9 | 0.7 | 5.7 | - | - | 0.00 | 24.64 | 0.133 | 433 | - |
| 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) | 3/19/26 | 97.3 6.0 | 1640 | 49.6 1.8 | 0618 | 51.4 0.9 | 58 | 84 0 | 21 10 | 0.6 | 6.1 2.4 | 1044 | 0.00 | 29.12 | 0.155 0.003 | 508 1 | 50 |
| Windsor-East (Ranch 16) | 3/19/26 | 94.9 3.7 | 1754 | 43.5 0.7 | 0715 | 49.8 0.9 | 63 | 100 0 | 15 7 | 1.1 | 9.2 0.3 | 2301 | 0.00 | 21.96 | 0.156 0.006 | 502 2 | 30 |
| Mark West-North (Ranch 14) | 3/19/26 | 93.9 4.8 | 1612 | 45.1 1.0 | 0649 | 49.4 1.3 | 64 | 98 0 | 14 12 | 0.4 | 7.5 0.8 | 1819 | 0.00 | 23.74 | 0.012 0.009 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 3/19/26 | 93.3 4.1 | 1652 | 42.2 0.2 | 0742 | 49.0 1.2 | 67 | 99 0 | 17 10 | 0.7 | 6.3 1.4 | 1806 | 0.00 | 21.14 | 0.149 0.007 | 496 3 | 0 |
| Fulton-NW (Ranch 5) | 3/19/26 | 91.6 3.8 | 1702 | 43.3 0.0 | 0720 | 49.5 1.5 | 66 | 100 0 | 3 0 | 0.9 | 7.3 1.7 | 1808 | 0.00 | 23.97 | 0.155 0.007 | 507 2 | 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) | 3/19/26 | 92.4 3.9 | 1702 | 44.6 0.9 | 0704 | 51.3 0.3 | 65 | 95 2 | 20 9 | 1.1 | 8.1 1.1 | 1757 | 0.00 | 23.01 | - | - | 0 |
| Fulton-SW (Ranch 21) | 3/19/26 | 91.3 3.7 | 1646 | 42.7 1.3 | 0726 | 45.4 4.6 | 62 | 100 0 | 0 0 | 1.3 | 8.8 0.2 | 1802 | 0.00 | 23.44 | 0.164 0.005 | 537 1 | 0 |
| NW Santa Rosa (Piner Road) | 3/19/26 | 90.0 1.1 | 1528 | 43.0 0.2 | 0734 | 53.1 0.3 | 73 | 100 0 | 27 4 | 0.8 | 9.3 0.3 | 1809 | 0.00 | 21.90 | - | - | 0 |
| River Rd South (Denner Ranch) | 3/19/26 | 96.3 9.2 | 1721 | 42.4 0.2 | 0726 | 50.8 1.6 | 68 | 100 0 | 18 14 | 1.3 | 8.3 3.3 | 1804 | - | - | - | - | 0 |
| West Santa Rosa (LOV Vineyard) | 3/19/26 | 92.9 4.7 | 1642 | 43.6 0.4 | 0734 | 49.5 1.5 | 66 | 98 2 | 18 12 | 0.9 | 8.3 2.4 | 1800 | 0.00 | 16.83 | 0.031 0.003 | 33 32 | 0 |
| Guerneville Rd (Prokopakis) | 3/19/26 | 93.1 1.7 | 1731 | 45.0 0.4 | 0705 | 49.9 1.5 | 65 | 98 1 | 19 9 | - | - | - | 0.00 | 23.04 | - | - | 0 |
| Guerneville Rd West (Balletto) | 3/19/26 | 92.0 4.1 | 1658 | 42.1 0.0 | 0721 | 51.6 0.6 | 72 | 100 0 | 24 10 | 1.2 | 7.7 1.0 | 1745 | 0.00 | 22.55 | - | - | 0 |
| Sanchietti Ranch | 3/19/26 | 91.5 3.5 | 1654 | 43.0 0.7 | 0648 | 53.2 0.3 | - | 98 0 | 28 8 | 1.2 | 8.0 1.2 | 1707 | 0.00 | 23.50 | - | - | 0 |
| Occidental Rd (Sebastopol) | 3/19/26 | 89.8 1.7 | 1724 | 41.2 1.4 | 0649 | 56.4 0.0 | 83 | 100 0 | 40 4 | 1.1 | 7.2 1.8 | 1730 | 0.00 | 6.96 | - | - | 0 |
| Lower Westside Rd (Ranch 12) | 3/19/26 | 95.8 5.0 | 1715 | 44.4 2.3 | 0649 | 49.9 0.2 | 67 | 100 5 | 17 8 | 0.7 | 7.0 0.9 | 1549 | 0.00 | 28.30 | - | - | 50 |
| Guerneville (Laughlin Rd) | 3/19/26 | 92.8 1.3 | 1434 | 43.5 1.1 | 0711 | 48.5 0.9 | 69 | 98 0 | 20 3 | 0.8 | 8.8 0.8 | 1606 | 0.00 | 39.24 | - | - | 0 |
| Korbel (Winery) | 3/19/26 | 92.0 2.0 | 1537 | 45.8 1.2 | 0607 | 50.3 1.3 | 69 | 100 0 | 16 9 | 0.7 | 9.8 0.3 | 1639 | 0.00 | 36.61 | - | - | 40 |
| Forestville (Shone Farms) | 3/19/26 | 93.5 2.8 | 1718 | 46.0 1.0 | 0649 | 48.8 2.0 | 59 | 97 1 | 20 7 | 1.3 | 8.3 0.9 | 1657 | 0.00 | 30.31 | 0.153 0.003 | 485 0 | 0 |
| Forestville-NE (Ranch 30) | 3/19/26 | 94.7 5.6 | 1707 | 45.1 0.6 | 0707 | 51.5 1.1 | 69 | 100 1 | 24 8 | 1.1 | 7.3 3.7 | 1509 | 0.00 | 28.46 | 0.155 0.008 | 498 0 | 50 |
| Green Valley Vineyard | 3/19/26 | 91.1 3.3 | 1552 | 47.6 1.4 | 0637 | 49.1 0.8 | 61 | 98 7 | 16 10 | 1.7 | 6.8 3.5 | 1945 | 0.00 | 35.04 | 0.087 0.023 | 224 100 | 0 |
| Green Valley (Sanchietti) | 3/19/26 | 93.0 3.3 | 1547 | 40.6 1.0 | 0719 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| Keefer Ranch (Green Valley) | 3/19/26 | 91.4 2.7 | 1605 | 41.9 0.3 | 0717 | 50.1 1.2 | 72 | 99 0 | 19 14 | - | - | - | 0.00 | 31.31 | - | - | 0 |
| Graton-South (Mill Station Rd) | 3/19/26 | 91.4 4.5 | 1530 | 40.8 1.2 | 0627 | 49.3 1.3 | 68 | 99 0 | 17 17 | 0.2 | 5.7 0.7 | 1549 | 0.00 | 27.62 | - | - | 0 |
| Occidental (Horseshoe Bend) | 3/19/26 | 87.3 3.7 | 1732 | 55.2 6.5 | 0453 | 48.2 1.5 | - | 76 23 | 20 7 | - | - | - | 0.00 | 32.02 | - | - | 80 |
| Sexton Valley (Jacqueline's Blk) | 3/19/26 | 90.2 2.5 | 1518 | 43.1 0.7 | 0736 | 51.2 1.3 | 72 | 100 0 | 31 8 | 1.3 | 8.2 2.5 | 1558 | 0.00 | 15.31 | - | - | 0 |
| Sebastopol Hills (Burnside Rd) | 3/19/26 | 88.0 3.9 | 1505 | 52.2 2.5 | 0101 | 50.4 1.4 | 55 | 91 3 | 28 13 | 1.4 | 7.4 2.7 | 1541 | 0.00 | 27.89 | - | - | 0 |
| Seaview/Fort Ross (Hirsch) | 3/19/26 | 84.8 3.0 | 1701 | 68.4 3.0 | 2343 | 29.0 6.9 | 19 | 32 16 | 7 5 | 2.5 | 9.9 2.3 | 1522 | 0.00 | 48.40 | 0.186 0.008 | 545 4 | 100 |
| Max | 97.3 | - | 68.4 | - | 56.4 | 83 | 100 | 40 | 2.5 | 9.9 | - | 0.00 | 48.40 | 0.186 | 545 | - | |
| Avg | - | - | - | - | 49.5 | 65 | - | - | 1.1 | - | - | - | - | - | - | - | |
| Min | 84.8 | - | 40.6 | - | 29.0 | 19 | 32 | 0 | 0.2 | 5.7 | - | 0.00 | 6.96 | 0.012 | 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 | 3/19/26 | 87.9 2.9 | 1805 | 60.4 1.2 | 0700 | 50.0 0.8 | 67 1 | 19 12 | 2.5 0.1 | 9.8 1.1 | 1531 | SSW | 194 | 0.00 | 5.41 | 0.170 0.001 | 521 4 | 0 0 |
| Lower Bennett Valley | 3/19/26 | 90.0 2.8 | 1703 | 41.7 1.7 | 0659 | 51.9 0.5 | 100 0 | 28 7 | 1.4 0.4 | 9.5 0.6 | 1350 | NNW | 346 | 0.00 | 22.06 | 0.153 0.004 | 490 3 | 0 0 |
| Kenwood (Wildwood) | 3/19/26 | 89.7 0.5 | 1624 | 46.8 0.7 | 0734 | 54.2 0.4 | 100 4 | 32 2 | 2.3 0.8 | 8.8 1.2 | 1434 | NNW | 334 | 0.00 | 26.90 | 0.145 0.007 | 454 4 | 40 10 |
| Sonoma Valley (Bedrock) | 3/19/26 | 89.2 1.5 | 1616 | 45.3 0.8 | 0640 | 52.7 1.0 | 96 1 | 33 4 | - | - | - | - | 0.00 | 23.11 | - | - | 70 10 |
| Sonoma-West (Arnold) | 3/19/26 | 90.5 0.8 | 1608 | 43.9 1.0 | 0656 | 53.4 1.9 | 96 2 | 32 5 | 1.7 0.1 | 8.6 1.2 | 1427 | SSW | 196 | 0.00 | 17.20 | 0.181 0.002 | 564 3 | 40 10 |
| Sonoma Valley HS | 3/19/26 | 88.8 0.8 | 1653 | 46.7 1.0 | 0640 | 56.5 0.2 | 100 0 | 37 2 | 0.9 0.1 | 7.1 0.3 | 1730 | SE | 146 | 0.00 | 5.29 | 0.155 0.000 | 504 2 | 10 10 |
| Sonoma East (Bundschu01) | 3/19/26 | 87.6 0.1 | 1539 | 45.6 1.2 | 0625 | 54.3 0.0 | 98 0 | 38 6 | 1.6 0.1 | 8.8 0.0 | 1457 | W | 274 | 0.00 | 17.48 | 0.166 0.001 | 525 3 | 40 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) | 3/19/26 | 89.2 2.7 | 1714 | 45.2 1.1 | 0636 | 54.3 0.0 | 96 1 | 37 13 | 0.3 0.4 | 7.8 0.3 | 1602 | S | 174 | 0.00 | 14.95 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 3/19/26 | 89.7 0.2 | 1627 | 46.8 0.2 | 0659 | 53.9 0.4 | 95 2 | 33 3 | 2.0 0.6 | 8.6 1.4 | 1535 | SE | 138 | 0.00 | 18.75 | 0.166 0.010 | 535 3 | 0 0 |
| Carneros (Ranch 71) | 3/19/26 | 89.2 0.7 | 1650 | 55.0 2.1 | 0607 | 55.3 0.5 | 88 4 | 34 4 | 1.8 0.2 | 9.8 0.4 | 0221 | E | 82 | 0.00 | 16.20 | 0.159 0.007 | 514 4 | 40 10 |
| Carneros Upper (Ranch 81) | 3/19/26 | 89.0 0.3 | 1552 | 55.5 3.6 | 0627 | 55.2 1.0 | - | - | 3.0 0.2 | 10.1 2.6 | 1421 | WSW | 237 | - | - | - | - | 70 20 |
| Carneros Lower (Ranch 81) | 3/19/26 | 91.1 1.3 | 1528 | 47.9 0.2 | 0652 | 53.0 1.1 | 100 0 | 0 0 | 0.9 0.0 | 6.9 0.1 | 1611 | SSE | 166 | 0.00 | 16.94 | 0.126 0.002 | 390 2 | 0 0 |
| Rohnert Park-West (Stony Point) | 3/19/26 | 89.0 2.8 | 1546 | 39.8 0.5 | 0729 | 51.4 0.5 | 99 0 | 36 8 | 0.9 0.5 | 9.1 1.7 | 1648 | SSW | 213 | 0.00 | 6.33 | - | - | 0 0 |
| Cartograph Wines Base | 3/19/26 | 86.0 1.5 | 1506 | 47.2 0.4 | 0111 | 52.9 0.8 | 99 2 | 36 11 | 2.0 0.5 | 9.8 0.4 | 1649 | SW | 215 | 0.00 | 22.43 | 0.153 0.004 | 504 2 | 0 0 |
| Cartograph Wines Remote | 3/19/26 | 83.7 1.4 | 1244 | 42.1 0.2 | 0712 | - | - | - | - | - | - | - | - | - | - | - | 80 20 |
| Rice-Spivak Vineyard | 3/19/26 | 87.6 1.8 | 1500 | 35.5 1.5 | 0641 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Penngrove (Asellus) | 3/19/26 | 89.5 1.9 | 1554 | 41.1 0.8 | 0626 | 51.1 0.1 | 98 0 | 31 2 | 1.3 0.2 | 8.6 1.7 | 1638 | SW | 217 | 0.00 | 45.71 | - | - | 0 0 |
| Petaluma (Ranch 10) | 3/19/26 | 91.9 1.0 | 1612 | 41.8 0.0 | 0639 | 49.9 1.2 | 100 0 | 27 4 | 1.2 0.0 | 8.2 1.5 | 1406 | N | 353 | 0.00 | 15.67 | 0.155 0.005 | 467 1 | 40 10 |
| Max | 91.9 | - | 60.4 | - | 56.5 | 100 | 38 | 3.0 | 10.1 | - | - | 0.00 | 45.71 | 0.181 | 564 | - | |
| Avg | - | - | - | - | 53.1 | - | - | 1.6 | - | - | - | - | - | - | - | - | |
| Min | 83.7 | - | 35.5 | - | 49.9 | 67 | 0 | 0.3 | 6.9 | - | - | 0.00 | 5.29 | 0.126 | 390 | - |