| Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | RH (%) | 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) | 9/13/25 | 86.5 1.0 | 1511 | 55.5 1.0 | 0522 | 53.0 2.1 | 65 | 90 0 | 32 2 | 3.5 | 23.5 4.1 | 1808 | W | 260 | 0.00 | 0.49 | - | - | 0 |
| Rockpile Upper (Cooley) | 9/13/25 | 84.0 | 1533 | 54.7 0.4 | 2306 | 51.6 2.3 | 65 | 92 2 | 35 0 | 8.6 | 32.2 8.3 | 1812 | NNW | 330 | 0.00 | 0.50 | 0.194 0.002 | 540 | 90 |
| Cloverdale-East (Ranch 83) | 9/13/25 | 86.8 1.8 | 1531 | 51.6 3.1 | 0701 | 54.3 2.5 | - | - | - | 2.4 | 18.4 5.6 | 2131 | WNW | 297 | 0.00 | 0.40 | 0.166 0.002 | 498 14 | 10 |
| Cloverdale-SE (Ranch 38) | 9/13/25 | 84.8 1.9 | 1602 | 54.9 2.0 | 0710 | 55.4 1.7 | 69 | 96 2 | 39 1 | 5.3 | 21.8 | 2010 | NNE | 15 | 0.00 | 0.37 | 0.167 0.004 | 452 0 | 100 |
| Geyserville-North (Hoffman) | 9/13/25 | 83.2 2.7 | 1634 | 50.3 0.6 | 0558 | 54.5 1.4 | 71 | 96 2 | 42 2 | 2.2 | 10.5 1.4 | 1653 | SSE | 152 | 0.00 | 0.00 | 0.152 0.010 | 479 15 | 100 |
| Geyserville (Ranch 3) | 9/13/25 | 83.9 2.7 | 1554 | 51.6 0.2 | 0602 | 53.6 1.6 | 67 | 92 | 37 2 | 2.3 | 11.8 0.3 | 2111 | WNW | 288 | 0.00 | 0.07 | 0.151 0.010 | 450 20 | 50 |
| Geyserville-East (Ranch 40) | 9/13/25 | 81.7 3.5 | 1616 | 54.8 1.5 | 0654 | 55.6 1.4 | 74 | 98 2 | 44 5 | 5.1 | 18.3 0.8 | 1714 | SSW | 193 | 0.00 | 0.16 | 0.160 0.015 | 485 16 | 100 |
| Geyserville-South (Nervo Station) | 9/13/25 | 82.1 3.7 | 1608 | 53.9 1.0 | 0653 | - | - | - | - | 2.2 | 12.1 0.3 | 1731 | SW | 235 | 0.00 | 0.21 | - | - | 100 |
| Jimtown-North (Piccolo Ranch 15) | 9/13/25 | 84.0 | 1651 | 50.4 0.1 | 0515 | 51.3 1.8 | 66 | 95 | 33 1 | 1.5 | 11.4 1.5 | 1656 | S | 183 | 0.00 | 0.06 | 0.137 0.010 | 438 20 | 100 |
| Jimtown-NE (Red Fan) | 8/26/25 | 88.9 0.8 | 1609 | 56.4 0.1 | 0146 | 53.1 1.9 | 64 | 94 | 20 8 | 3.5 | 13.4 0.5 | 1919 | S | 169 | 0.00 | 0.00 | 0.187 0.011 | 528 | 0 |
| HWY 128/Chalk Hill Rd (Landslide) | 9/13/25 | 82.7 3.1 | 1508 | 50.7 0.3 | 0059 | 54.0 1.5 | 74 | 96 1 | 40 2 | 1.8 | 11.8 1.4 | 1656 | SSW | 212 | 0.00 | 0.12 | 0.132 0.010 | 398 | 100 |
| N Chalk Hill Rd (Ranch 63) | 9/13/25 | 82.5 2.2 | 1510 | 50.1 0.4 | 0056 | 52.9 1.6 | 72 | 96 4 | 39 2 | 1.8 | 12.5 0.1 | 1535 | S | 183 | 0.00 | 0.18 | 0.138 0.011 | 422 25 | 80 |
| Knights Valley (Bavarian Lion) | 9/13/25 | 85.0 | 1502 | 49.5 0.1 | 0101 | 53.5 0.8 | 73 | 97 | 36 3 | 2.0 | 12.4 0.3 | 1539 | WNW | 291 | 0.00 | 0.15 | 0.150 0.010 | 462 36 | 90 |
| Upper Dry Creek Valley | 9/13/25 | 83.9 2.0 | 1559 | 50.8 1.7 | 0659 | 54.6 1.9 | 70 | 96 | 40 0 | 2.6 | 13.1 0.8 | 2114 | WNW | 294 | 0.00 | 0.32 | 0.166 0.007 | 513 13 | 90 |
| Lower Dry Creek Valley | 9/13/25 | 81.2 2.0 | 1545 | 49.9 1.3 | 0712 | 54.0 1.9 | 75 | 100 | 42 1 | 2.8 | 14.6 0.5 | 1626 | 130 | 0.00 | 0.16 | 0.153 0.012 | 474 19 | 100 |
| Max | 86.8 | - | 55.5 | - | 55.6 | 75 | 98 | 44 | 8.6 | 32.2 | - | - | - | 0.50 | 0.194 | 540 | - | |
| Avg | - | - | - | - | 53.7 | 70 | - | - | 3.2 | - | - | - | - | - | - | - | - | |
| Min | 81.2 | - | 49.5 | - | 51.3 | 65 | 90 | 32 | 1.5 | 10.5 | - | - | - | 0.06 | 0.132 | 398 | - |
| Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | RH (%) | 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) | 9/13/25 | 82.7 3.4 | 1529 | 50.8 0.8 | 0647 | - | - | 100 0 | 38 1 | 1.7 | 13.3 2.2 | 1808 | 0.00 | 0.09 | - | - | 100 |
| Windsor-NW (Ranch 8) | 9/13/25 | 83.5 1.2 | 1555 | 53.0 1.3 | 0629 | 53.9 1.9 | 73 | 84 2 | 43 1 | 1.3 | 11.1 1.0 | 1642 | 0.00 | 0.10 | 0.141 0.008 | 464 10 | 60 |
| Windsor-East (Ranch 16) | 9/13/25 | 79.4 4.0 | 1527 | 49.0 1.9 | 0631 | 53.2 2.1 | 78 | 100 | 43 3 | 2.0 | 11.4 2.8 | 1733 | 0.00 | 0.00 | 0.144 0.014 | 460 28 | 100 |
| Mark West-North (Ranch 14) | 9/13/25 | 79.7 3.1 | 1446 | 51.0 | 0558 | 53.1 2.0 | 75 | 96 0 | 41 2 | 1.6 | 10.8 0.5 | 1704 | 0.00 | 0.23 | 0.023 0.004 | 0 | 60 |
| Windsor-SE (Silk Rd) | 9/13/25 | 80.8 | 1529 | 48.9 2.2 | 0101 | 52.9 2.0 | 77 | 97 1 | 41 3 | 1.6 | 13.4 0.1 | 1437 | 0.00 | 0.13 | 0.138 0.010 | 456 19 | 100 |
| Fulton-NW (Ranch 5) | 9/13/25 | 78.8 | 1527 | 49.9 2.2 | 0058 | 53.5 2.3 | 78 | 100 | 44 1 | 1.9 | 11.8 0.4 | 1445 | 0.00 | 0.20 | 0.140 0.013 | 455 29 | 100 |
| Windsor-South (Laughlin Rd) | 9/13/25 | 80.6 2.0 | 1533 | 51.6 1.3 | 0653 | - | - | - | - | - | - | - | 0.00 | 0.11 | - | - | 100 |
| Fulton-SE (Barnes Rd) | 9/13/25 | 77.2 4.6 | 1516 | 51.8 2.4 | 0628 | 53.9 2.1 | 77 | 95 1 | 46 2 | 2.4 | 13.8 1.0 | 1523 | 0.00 | 0.12 | - | - | 90 |
| Fulton-SW (Ranch 21) | 9/13/25 | 77.2 3.4 | 1554 | 51.1 1.3 | 0101 | - | - | - | - | 2.5 | 14.4 0.7 | 1726 | 0.00 | 0.15 | 0.154 0.017 | 499 | 90 |
| Santa Rosa-NW (Goldfields) | 9/13/25 | 79.2 2.4 | 1555 | 51.2 2.3 | 0037 | 53.9 1.7 | 78 | 100 | 43 2 | 2.4 | 13.1 0.7 | 1725 | 0.00 | 0.15 | 0.126 0.013 | 386 33 | 100 |
| Goldfields Remote | 9/13/25 | 79.1 3.1 | 1517 | 50.2 2.2 | 0029 | - | - | - | - | - | - | - | - | - | - | - | 100 |
| NW Santa Rosa (Piner Road) | 9/13/25 | 77.6 3.5 | 1543 | 49.5 2.7 | 0032 | 55.5 2.1 | 85 | 100 | 50 3 | 1.7 | 12.5 0.3 | 1644 | 0.00 | 0.15 | - | - | 90 |
| River Rd South (Denner Ranch) | 9/13/25 | 78.5 1.9 | 1446 | 49.6 1.5 | 0026 | 53.5 1.8 | 80 | 97 0 | 42 2 | 3.5 | 16.2 2.2 | 1716 | - | - | - | - | 100 |
| West Santa Rosa (LOV Vineyard) | 9/13/25 | 80.5 2.0 | 1626 | 50.4 1.9 | 0059 | 53.7 1.9 | 78 | 97 0 | 40 1 | 1.3 | 9.7 1.7 | 1451 | 0.00 | 0.32 | 0.019 0.004 | 0 0 | 100 |
| Guerneville Rd (Prokopakis) | 9/13/25 | 82.3 3.4 | 1529 | 50.2 1.3 | 0101 | 54.0 2.0 | 78 | 99 | 40 0 | - | - | - | 0.00 | 0.22 | - | - | 100 |
| Guerneville Rd West (Balletto) | 9/13/25 | 78.2 2.6 | 1450 | 50.3 2.6 | 0101 | 54.6 2.2 | 81 | 98 1 | 46 2 | 2.1 | 12.1 0.6 | 1706 | 0.00 | 0.23 | - | - | 100 |
| Guerneville Rd East (Rich Ranch) | 9/11/25 | 81.5 4.0 | 1431 | 58.6 0.2 | 0101 | 57.4 1.0 | 71 | 90 8 | 45 6 | - | - | - | - | - | - | - | 100 |
| Sanchietti Ranch | 9/13/25 | 78.2 3.5 | 1455 | 49.0 2.7 | 0056 | 54.7 2.1 | - | 97 | 51 2 | 2.5 | 13.8 0.2 | 1702 | 0.00 | 0.06 | - | - | 100 |
| Occidental Rd (Sebastopol) | 9/13/25 | 79.8 1.1 | 1627 | 49.0 | 0022 | 58.1 2.0 | 92 | 100 | 58 1 | 1.7 | 12.1 2.4 | 1454 | 0.00 | 0.08 | - | - | 100 |
| Lower Westside Rd (Ranch 12) | 9/13/25 | 80.0 3.3 | 1450 | 50.5 0.7 | 0654 | 53.1 1.7 | 75 | 95 | 41 3 | 1.7 | 10.8 1.3 | 1426 | 0.00 | 0.08 | 0.025 0.004 | 0 | 100 |
| Guerneville (Laughlin Rd) | 9/13/25 | 79.1 4.6 | 1419 | 47.4 5.3 | 0059 | 52.2 3.5 | 76 | 96 1 | 44 1 | 1.9 | 12.6 0.6 | 1649 | 0.00 | 0.15 | - | - | 100 |
| Korbel (Winery) | 9/13/25 | 80.4 3.1 | 1607 | 50.8 3.7 | 0616 | 53.8 2.6 | 76 | 95 2 | 42 1 | 0.9 | 12.1 3.5 | 1441 | 0.00 | 0.10 | - | - | 100 |
| Forestville (Shone Farms) | 9/13/25 | 81.6 1.9 | 1644 | 50.9 2.2 | 0703 | 54.2 1.9 | 77 | 96 0 | 43 1 | 1.7 | 11.3 0.9 | 1509 | 0.00 | 0.07 | 0.139 0.010 | 454 17 | 100 |
| Forestville-NE (Ranch 30) | 9/13/25 | 82.2 1.1 | 1541 | 48.9 1.3 | 0717 | 54.2 2.1 | 79 | 97 1 | 45 1 | 2.3 | 13.7 0.8 | 1719 | 0.00 | 0.04 | 0.146 0.012 | 474 22 | 90 |
| Green Valley Vineyard | 9/13/25 | 80.9 0.5 | 1620 | 50.3 1.2 | 0505 | 53.5 1.8 | 79 | 98 | 40 1 | 1.8 | 13.4 0.7 | 1735 | 0.00 | 0.10 | 0.037 0.008 | 46 35 | 100 |
| Green Valley (Sanchietti) | 9/13/25 | 81.2 | 1520 | 47.5 0.9 | 0532 | - | - | - | - | - | - | - | - | - | - | - | 100 |
| Keefer Ranch (Green Valley) | 9/13/25 | 80.3 | 1616 | 47.6 1.0 | 0054 | 53.9 1.9 | 83 | 100 | 48 2 | - | - | - | 0.00 | 0.06 | - | - | 100 |
| Graton-South (Mill Station Rd) | 9/13/25 | 76.8 0.9 | 1614 | 47.5 1.9 | 0059 | 52.8 2.0 | 82 | 99 | 46 3 | 0.7 | 7.9 0.4 | 1732 | 0.00 | 0.24 | - | - | 90 |
| Occidental (Horseshoe Bend) | 9/13/25 | 78.0 0.4 | 1603 | 51.5 1.8 | 0710 | 54.3 2.2 | - | 100 | 44 2 | - | - | - | 0.00 | 0.22 | - | - | 80 |
| Sexton Valley (Jacqueline's Blk) | 9/13/25 | 77.1 1.7 | 1355 | 47.7 3.0 | 0521 | 54.0 1.9 | 84 | 98 1 | 50 2 | 1.1 | 9.1 0.4 | 1521 | 0.00 | 0.33 | - | - | 90 |
| Sebastopol Hills (Burnside Rd) | 9/13/25 | 74.4 2.2 | 1552 | 51.8 2.6 | 0545 | 55.2 | 86 | 100 | 54 0 | 2.1 | 13.7 1.8 | 1718 | 0.00 | 0.19 | - | - | 30 |
| Seaview/Fort Ross (Hirsch) | 9/13/25 | 75.5 1.4 | 1545 | 55.7 2.1 | 0840 | 53.5 1.9 | 73 | 92 4 | 48 3 | 3.2 | 14.3 4.3 | 2000 | 0.00 | 0.57 | 0.142 0.003 | 524 12 | 0 |
| Max | 83.5 | - | 55.7 | - | 58.1 | 92 | 100 | 58 | 3.5 | 16.2 | - | - | 0.57 | 0.154 | 524 | - | |
| Avg | - | - | - | - | 54.0 | 79 | - | - | 1.9 | - | - | - | - | - | - | - | |
| Min | 74.4 | - | 47.4 | - | 52.2 | 73 | 84 | 38 | 0.7 | 7.9 | - | - | 0.04 | 0.019 | 0 | - |
| Station | Date | Daily Max Temp (°F) | Time of Max Temp | Daily Min Temp (°F) | Time of Min Temp | Dew Pt (°F) | 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 | 9/13/25 | 76.8 | 1457 | 52.4 2.4 | 0706 | 53.8 1.9 | 97 1 | 47 3 | 1.6 0.1 | 9.7 0.6 | 1626 | SSE | 160 | 0.00 | 0.38 | 0.145 0.015 | 507 34 | 100 |
| Lower Bennett Valley | 9/13/25 | 76.6 5.8 | 1331 | 46.6 1.3 | 0045 | 53.1 2.3 | 100 | 51 6 | 2.4 0.1 | 12.9 0.6 | 1825 | ESE | 104 | 0.00 | 0.16 | 0.141 0.014 | 474 31 | 100 |
| Kenwood (Wildwood) | 9/13/25 | 81.4 2.1 | 1421 | 50.8 1.0 | 0334 | 54.2 1.2 | 98 2 | 43 2 | 2.2 0.0 | 14.4 1.9 | 1757 | NNW | 340 | 0.00 | 0.11 | 0.091 0.002 | 222 22 | 90 |
| Sonoma Valley (Bedrock) | 9/13/25 | 79.8 0.1 | 1537 | 49.8 0.3 | 0056 | 52.6 1.2 | 94 3 | 41 4 | - | - | - | - | 0.00 | 0.11 | - | - | 100 |
| Sonoma-West (Arnold) | 9/13/25 | 81.0 | 1435 | 50.6 0.8 | 0018 | 52.2 1.8 | 93 | 40 1 | 2.7 0.7 | 16.2 5.2 | 1526 | 212 | 0.00 | 0.11 | 0.177 0.013 | 550 28 | 100 |
| Sonoma Valley HS | 9/13/25 | 77.9 0.9 | 1507 | 52.0 | 0627 | 55.8 1.7 | 100 | 50 3 | 2.0 0.0 | 9.5 0.2 | 1859 | SW | 236 | 0.00 | 0.08 | 0.141 0.006 | 483 32 | 90 |
| Sonoma East (Bundschu01) | 9/13/25 | 79.0 1.1 | 1522 | 49.6 0.2 | 0044 | 53.3 1.2 | 95 | 41 7 | 2.8 0.2 | 15.6 0.9 | 1606 | SW | 223 | 0.00 | 0.02 | 0.144 0.006 | 478 41 | 90 |
| Schellville (Sasaki) | 9/13/25 | 78.6 0.5 | 1505 | 49.8 1.3 | 0634 | 53.4 1.7 | 94 1 | 42 4 | 4.2 0.8 | 22.2 6.7 | 1827 | S | 169 | 0.00 | 0.02 | - | - | 90 |
| Sonoma-SE (Napoli) | 9/13/25 | 80.8 1.7 | 1530 | 50.9 0.9 | 0629 | 53.7 1.2 | 95 0 | 38 8 | 1.9 0.0 | 13.1 0.0 | 1745 | WSW | 243 | 0.00 | 0.01 | - | - | 100 |
| Ricci Vineyards (Carneros) | 9/13/25 | 78.3 1.4 | 1603 | 50.6 0.4 | 0652 | 53.8 1.5 | 97 0 | 40 13 | 3.3 0.2 | 18.6 3.9 | 1840 | W | 278 | 0.00 | 0.07 | 0.143 0.002 | 457 1 | 100 |
| Carneros (Ranch 71) | 9/13/25 | 76.8 1.8 | 1601 | 55.4 1.0 | 0659 | 54.8 1.5 | 95 0 | 42 14 | 3.4 0.9 | 21.7 9.2 | 1755 | W | 277 | 0.00 | 0.07 | 0.132 0.010 | 424 16 | 90 |
| Carneros Upper (Ranch 81) | 9/13/25 | 77.5 0.3 | 1701 | 56.6 1.4 | 0624 | 54.7 1.7 | 92 | 40 11 | 5.2 1.6 | 19.4 3.9 | 1816 | WSW | 256 | - | - | - | - | 90 |
| Carneros Lower (Ranch 81) | 9/13/25 | 78.4 1.9 | 1650 | 53.6 1.6 | 0714 | 55.2 0.7 | 93 2 | 43 12 | 1.2 0.2 | 12.9 1.0 | 1522 | S | 170 | 0.00 | 0.01 | 0.116 0.004 | 390 2 | 80 |
| Rohnert Park-West (Stony Point) | 9/13/25 | 74.5 4.0 | 1541 | 48.6 2.2 | 0059 | 54.4 1.9 | 98 1 | 54 | 1.9 0.3 | 14.8 2.0 | 1724 | 225 | 0.00 | 0.23 | - | - | 90 |
| Cartograph Wines Base | 9/13/25 | 72.4 4.0 | 1350 | 53.6 1.0 | 0242 | 55.7 1.6 | 100 | 59 2 | 3.5 0.4 | 24.7 3.5 | 1813 | SSW | 207 | 0.00 | 0.25 | 0.121 0.013 | 437 24 | 50 |
| Cartograph Wines Remote | 9/13/25 | 72.2 5.8 | 1219 | 50.3 1.4 | 2351 | - | - | - | - | - | - | - | - | - | - | - | 90 |
| Rice-Spivak Vineyard | 9/13/25 | 75.8 3.7 | 1344 | 44.6 3.0 | 2346 | - | - | - | - | - | - | - | - | - | - | - | 90 |
| Penngrove (Asellus) | 9/13/25 | 74.8 7.7 | 1236 | 48.7 2.2 | 0023 | 52.5 2.4 | 98 0 | 49 7 | 1.9 0.1 | 12.5 0.4 | 1709 | SSW | 199 | 0.00 | 0.04 | - | - | 90 |
| Roger's Creek (Ranch 50) | 9/13/25 | 74.4 6.8 | 1315 | 53.9 0.2 | 0504 | 54.5 1.6 | 100 0 | 49 6 | 4.7 1.0 | 18.2 0.3 | 1759 | W | 274 | 0.00 | 0.17 | 0.140 0.007 | 466 | 80 |
| Petaluma (Ranch 10) | 9/13/25 | 77.3 7.6 | 1305 | 50.8 | 0325 | 53.3 | 94 2 | 45 3 | 2.0 0.9 | 12.5 0.8 | 1526 | WSW | 239 | 0.00 | 0.15 | 0.139 0.003 | 451 | 90 |
| Max | 81.4 | - | 56.6 | - | 55.8 | 100 | 59 | 5.2 | 24.7 | - | - | - | 0.38 | 0.177 | 550 | - | |
| Avg | - | - | - | - | 54.0 | - | - | 2.8 | - | - | - | - | - | - | - | - | |
| Min | 72.2 | - | 44.6 | - | 52.2 | 92 | 38 | 1.2 | 9.5 | - | - | - | 0.01 | 0.091 | 222 | - |