| 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) | 3/25/26 | 73.5 8.0 | 1455 | 49.0 7.4 | 2357 | 36.6 6.1 | 45 | 71 27 | 14 0 | 7.3 | 28.8 5.7 | 1658 | WNW | 284 | 0.00 | 36.97 | - | - | 90 10 |
| Rockpile Upper (Cooley) | 3/25/26 | 69.2 9.0 | 1418 | 42.6 11.0 | 0046 | 36.2 7.0 | 52 | 85 42 | 16 1 | 15.8 | 37.7 7.5 | 1722 | WNW | 302 | 0.00 | 37.66 | 0.200 0.033 | 567 6 | 70 10 |
| Cloverdale-East (Ranch 83) | 3/25/26 | 80.5 4.8 | 1532 | 47.3 2.9 | 0605 | 41.4 5.6 | - | - | - | 5.8 | 20.2 0.4 | 1627 | NW | 304 | 0.00 | 30.99 | 0.189 0.009 | 506 8 | 60 20 |
| Cloverdale-SE (Ranch 38) | 3/25/26 | 79.2 6.1 | 1533 | 50.9 0.2 | 0042 | 41.5 4.8 | 47 | 70 13 | 30 12 | 9.8 | 23.8 0.9 | 1909 | NNW | 345 | 0.00 | 32.45 | 0.203 0.005 | 473 7 | 100 20 |
| Geyserville-North (Hoffman) | 3/25/26 | 81.3 7.8 | 1537 | 41.3 1.5 | 0622 | 43.0 3.7 | 53 | 86 7 | 28 10 | 4.7 | 19.6 7.8 | 1644 | W | 281 | 0.00 | 25.50 | 0.174 0.009 | 475 11 | 30 20 |
| Geyserville (Ranch 3) | 3/25/26 | 80.7 4.5 | 1539 | 43.5 2.9 | 0530 | 41.2 4.4 | 48 | 79 7 | 24 9 | 7.0 | 19.2 5.8 | 2212 | WNW | 289 | 0.00 | 31.63 | 0.199 0.012 | 489 10 | 60 20 |
| Geyserville-East (Ranch 40) | 3/25/26 | 80.7 6.4 | 1552 | 48.1 1.8 | 0703 | 42.3 4.0 | 50 | 72 13 | 30 12 | 5.5 | 20.9 3.8 | 1831 | N | 2 | 0.00 | 32.10 | 0.182 0.011 | 519 10 | 60 20 |
| Geyserville-South (Nervo Station) | 3/25/26 | 81.2 5.2 | 1517 | 44.1 1.1 | 0714 | - | - | - | - | 5.9 | 26.9 13.8 | 2313 | NW | 310 | 0.00 | 24.64 | - | - | 60 20 |
| Jimtown-North (Piccolo Ranch 15) | 3/25/26 | 79.8 5.8 | 1553 | 40.2 0.5 | 0658 | 42.6 3.1 | 56 | 95 5 | 24 10 | 3.5 | 18.9 6.6 | 1733 | W | 262 | 0.00 | 29.34 | 0.157 0.009 | 448 10 | 100 0 |
| HWY 128/Chalk Hill Rd (Landslide) | 3/25/26 | 82.3 3.3 | 1556 | 39.0 0.1 | 0700 | 44.2 2.2 | 62 | 97 0 | 24 10 | 3.4 | 16.7 3.9 | 1142 | NW | 307 | 0.00 | 28.06 | 0.161 0.005 | 448 6 | 100 10 |
| N Chalk Hill Rd (Ranch 63) | 3/25/26 | 79.4 5.7 | 1538 | 38.1 1.1 | 0724 | 42.8 2.4 | 60 | 100 0 | 24 10 | 2.9 | 16.8 3.8 | 1732 | W | 262 | 0.00 | 29.61 | 0.158 0.000 | 456 5 | 100 10 |
| Knights Valley (Bavarian Lion) | 3/25/26 | 79.0 4.8 | 1550 | 36.8 1.3 | 0543 | 42.5 2.2 | 62 | 95 2 | 24 12 | 3.9 | 17.9 5.5 | 1634 | WNW | 286 | 0.00 | 27.72 | 0.170 0.006 | 507 8 | 70 20 |
| Upper Dry Creek Valley | 3/25/26 | 79.2 6.8 | 1516 | 41.4 2.4 | 0540 | 41.8 2.3 | 52 | 87 2 | 21 7 | 6.1 | 21.1 11.0 | 1603 | WNW | 300 | 0.00 | 34.53 | 0.201 0.030 | 543 4 | 70 10 |
| Lower Dry Creek Valley | 3/25/26 | 81.2 5.9 | 1537 | 41.1 0.9 | 0616 | 42.9 2.7 | 55 | 92 8 | 19 4 | 6.6 | 21.7 7.5 | 1658 | WNW | 303 | 0.00 | 33.46 | 0.200 0.033 | 492 8 | 60 20 |
| Max | 82.3 | - | 50.9 | - | 44.2 | 62 | 100 | 30 | 15.8 | 37.7 | - | - | 0.00 | 37.66 | 0.203 | 567 | - | |
| Avg | - | - | - | - | 41.5 | 53 | - | - | 6.3 | - | - | - | - | - | - | - | - | |
| Min | 69.2 | - | 36.8 | - | 36.2 | 45 | 70 | 14 | 2.9 | 16.7 | - | - | 0.00 | 24.64 | 0.157 | 448 | - |
| 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) | 3/25/26 | 82.3 4.2 | 1536 | 43.2 1.4 | 0713 | 43.9 0.5 | 55 | 84 0 | 23 1 | 1.2 | 18.0 7.3 | 1755 | 0.00 | 29.12 | 0.160 0.002 | 520 8 | 80 |
| Windsor-East (Ranch 16) | 3/25/26 | 81.2 1.5 | 1600 | 37.7 0.4 | 0412 | 41.8 1.9 | 57 | 92 3 | 18 2 | 3.6 | 16.8 4.4 | 1702 | 0.00 | 21.96 | 0.184 0.008 | 522 7 | 90 |
| Mark West-North (Ranch 14) | 3/25/26 | 81.6 0.6 | 1458 | 39.9 0.2 | 0546 | 41.2 1.8 | 54 | 92 4 | 17 2 | 1.5 | 8.3 1.9 | 1225 | 0.00 | 23.74 | 0.035 0.004 | 0 0 | 60 |
| Windsor-SE (Silk Rd) | 3/25/26 | 81.0 2.3 | 1521 | 38.7 0.5 | 0415 | 41.2 0.5 | 60 | 96 2 | 15 2 | 2.8 | 16.0 5.0 | 1656 | 0.00 | 21.14 | 0.176 0.012 | 513 9 | 60 |
| Fulton-NW (Ranch 5) | 3/25/26 | 80.1 1.5 | 1500 | 39.0 0.1 | 0628 | 41.8 2.0 | 58 | 94 6 | 18 15 | 3.3 | 17.6 5.7 | 1546 | 0.00 | 23.97 | 0.182 0.009 | 518 12 | 60 |
| 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) | 3/25/26 | 82.8 1.2 | 1611 | 41.2 0.0 | 0625 | 43.0 3.1 | 57 | 86 6 | 19 2 | 3.3 | 17.2 4.4 | 1650 | 0.00 | 23.01 | - | - | 60 |
| Fulton-SW (Ranch 21) | 3/25/26 | 81.0 0.6 | 1500 | 39.4 1.0 | 0439 | 41.6 1.4 | 59 | 92 8 | 17 17 | 2.9 | 18.2 6.0 | 1806 | 0.00 | 23.44 | 0.186 0.007 | 550 11 | 0 |
| NW Santa Rosa (Piner Road) | 3/25/26 | 82.9 0.1 | 1500 | 38.4 0.9 | 0534 | 46.7 4.0 | 71 | 100 0 | 24 3 | 0.8 | 9.9 2.2 | 1511 | 0.00 | 21.90 | - | - | 0 |
| River Rd South (Denner Ranch) | 3/25/26 | 82.9 0.4 | 1502 | 37.6 2.1 | 0611 | 44.5 4.8 | 67 | 100 0 | 17 17 | 2.6 | 18.0 4.4 | 1803 | - | - | - | - | 0 |
| West Santa Rosa (LOV Vineyard) | 3/25/26 | 81.1 0.4 | 1428 | 39.6 0.9 | 0711 | 44.1 4.0 | 65 | 93 7 | 16 2 | 1.6 | 12.9 3.1 | 1602 | 0.00 | 16.83 | 0.032 0.002 | 1 7 | 60 |
| Guerneville Rd (Prokopakis) | 3/25/26 | 81.3 3.4 | 1435 | 40.3 1.1 | 0655 | 45.5 5.3 | 64 | 93 4 | 18 2 | - | - | - | 0.02 | 23.06 | - | - | 0 |
| Guerneville Rd West (Balletto) | 3/25/26 | 80.7 1.4 | 1427 | 38.6 0.1 | 0658 | 46.6 4.9 | 71 | 96 2 | 23 1 | 2.2 | 14.3 4.0 | 1616 | 0.00 | 22.55 | - | - | 0 |
| Sanchietti Ranch | 3/25/26 | 79.4 2.7 | 1404 | 39.6 1.5 | 0434 | 48.3 4.6 | - | 95 3 | 46 21 | 2.6 | 15.3 3.4 | 1510 | 0.00 | 23.50 | - | - | 0 |
| Occidental Rd (Sebastopol) | 3/25/26 | 80.9 1.7 | 1419 | 38.1 1.7 | 0652 | 50.7 3.9 | 83 | 100 0 | 48 19 | 2.1 | 16.0 4.8 | 1453 | 0.00 | 6.96 | - | - | 0 |
| Lower Westside Rd (Ranch 12) | 3/25/26 | 82.1 3.7 | 1525 | 40.0 0.1 | 0527 | 40.6 0.6 | 57 | 92 3 | 15 0 | 1.6 | 14.7 2.5 | 1356 | 0.00 | 28.30 | - | - | 100 |
| Guerneville (Laughlin Rd) | 3/25/26 | 81.9 1.4 | 1619 | 38.8 0.6 | 0549 | 43.2 3.3 | 64 | 94 4 | 24 11 | 2.1 | 15.8 1.3 | 1429 | 0.00 | 39.24 | - | - | 80 |
| Korbel (Winery) | 3/25/26 | 80.0 3.0 | 1351 | 40.8 0.4 | 0526 | 45.1 4.0 | 64 | 94 6 | 28 12 | 1.8 | 14.6 2.5 | 1428 | 0.00 | 36.61 | - | - | 100 |
| Forestville (Shone Farms) | 3/25/26 | 82.6 3.0 | 1558 | 41.6 0.8 | 0622 | 41.2 1.5 | 52 | 88 3 | 15 0 | 2.8 | 16.4 5.0 | 1436 | 0.00 | 30.31 | 0.167 0.005 | 491 16 | 60 |
| Forestville-NE (Ranch 30) | 3/25/26 | 81.8 4.3 | 1546 | 39.5 1.5 | 0710 | 44.6 1.6 | 64 | 96 2 | 20 2 | 2.7 | 18.2 6.7 | 1410 | 0.00 | 28.46 | 0.167 0.003 | 503 20 | 80 |
| Green Valley Vineyard | 3/25/26 | 77.2 3.2 | 1307 | 41.2 1.6 | 0618 | 43.2 4.4 | 57 | 83 6 | 34 20 | 3.4 | 18.6 5.9 | 1442 | 0.00 | 35.04 | 0.055 0.010 | 19 17 | 60 |
| Green Valley (Sanchietti) | 3/25/26 | 81.3 2.7 | 1348 | 36.9 0.1 | 0625 | - | - | - | - | - | - | - | - | - | - | - | 80 |
| Keefer Ranch (Green Valley) | 3/25/26 | 79.0 3.0 | 1321 | 37.8 0.8 | 0628 | 45.6 3.9 | 71 | 97 1 | 41 24 | - | - | - | 0.00 | 31.31 | - | - | 60 |
| Graton-South (Mill Station Rd) | 3/25/26 | 77.3 3.4 | 1343 | 36.6 0.8 | 0633 | 44.7 4.2 | 68 | 98 1 | 37 20 | 1.1 | 10.6 4.6 | 1614 | 0.00 | 27.62 | - | - | 60 |
| Occidental (Horseshoe Bend) | 3/25/26 | 73.9 4.3 | 1116 | 48.4 2.6 | 0619 | 41.6 6.1 | - | 71 11 | 29 14 | - | - | - | 0.00 | 32.02 | - | - | 100 |
| Sexton Valley (Jacqueline's Blk) | 3/25/26 | 76.7 3.9 | 1346 | 38.4 1.5 | 0714 | 46.5 4.4 | 72 | 98 1 | 41 20 | 2.3 | 16.8 7.5 | 1510 | 0.00 | 15.31 | - | - | 60 |
| Sebastopol Hills (Burnside Rd) | 3/25/26 | 74.8 2.5 | 1329 | 46.4 4.7 | 0522 | 44.1 5.6 | 56 | 75 13 | 31 8 | 2.5 | 14.3 1.8 | 1624 | 0.00 | 27.89 | - | - | 0 |
| Seaview/Fort Ross (Hirsch) | 3/25/26 | 68.4 4.9 | 1424 | 47.1 8.0 | 0042 | 40.0 12.7 | 55 | 77 34 | 18 9 | 5.3 | 16.7 3.1 | 2119 | 0.00 | 48.40 | 0.160 0.019 | 549 14 | 60 |
| Max | 82.9 | - | 48.4 | - | 50.7 | 83 | 100 | 48 | 5.3 | 18.6 | - | 0.02 | 48.40 | 0.186 | 550 | - | |
| Avg | - | - | - | - | 43.9 | 62 | - | - | 2.4 | - | - | - | - | - | - | - | |
| Min | 68.4 | - | 36.6 | - | 40.0 | 52 | 71 | 15 | 0.8 | 8.3 | - | 0.00 | 6.96 | 0.032 | 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 | 3/25/26 | 78.9 0.1 | 1604 | 49.0 1.0 | 0015 | 39.6 3.1 | 72 14 | 23 1 | 2.9 0.1 | 12.3 1.2 | 1743 | NNW | 329 | 0.00 | 5.41 | 0.170 0.007 | 543 9 | 0 0 |
| Lower Bennett Valley | 3/25/26 | 78.7 1.4 | 1351 | 34.8 0.8 | 0531 | 45.6 6.2 | 100 0 | 42 17 | 3.3 1.1 | 14.4 2.6 | 1433 | SSW | 195 | 0.00 | 22.06 | 0.151 0.015 | 501 18 | 0 0 |
| Kenwood (Wildwood) | 3/25/26 | 77.4 2.5 | 1404 | 43.1 1.6 | 0507 | 45.5 4.7 | 84 2 | 39 17 | 4.2 0.6 | 18.0 4.6 | 1040 | NNW | 335 | 0.00 | 26.90 | 0.148 0.017 | 471 13 | 100 0 |
| Sonoma Valley (Bedrock) | 3/25/26 | 77.7 3.1 | 1539 | 40.5 2.1 | 0618 | 43.2 5.7 | 84 4 | 34 15 | - | - | - | - | 0.00 | 23.11 | - | - | 100 0 |
| Sonoma-West (Arnold) | 3/25/26 | 77.7 4.5 | 1217 | 37.6 1.7 | 0640 | 45.7 5.3 | 92 1 | 40 16 | 3.3 0.7 | 21.8 6.7 | 1652 | SSW | 210 | 0.00 | 17.20 | 0.175 0.021 | 579 22 | 90 10 |
| Sonoma Valley HS | 3/25/26 | 78.1 4.7 | 1253 | 40.1 1.4 | 0537 | 48.0 5.1 | 97 2 | 48 23 | 2.4 0.6 | 10.1 2.4 | 1814 | SSW | 212 | 0.00 | 5.29 | 0.150 0.017 | 522 18 | 70 10 |
| Sonoma East (Bundschu01) | 3/25/26 | 77.1 3.3 | 1338 | 38.6 1.7 | 0627 | 45.2 5.8 | 88 2 | 42 20 | 3.8 0.9 | 23.0 3.7 | 1702 | WSW | 258 | 0.00 | 17.48 | 0.157 0.022 | 526 26 | 70 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) | 3/25/26 | 76.8 4.3 | 1238 | 38.2 1.6 | 0629 | 45.1 6.6 | 87 4 | 42 22 | 2.6 0.6 | 20.2 1.0 | 1637 | WNW | 282 | 0.00 | 14.95 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 3/25/26 | 76.4 3.9 | 1355 | 40.0 0.0 | 0440 | 45.0 7.8 | 82 13 | 41 20 | 6.1 1.2 | 24.2 5.2 | 1615 | W | 268 | 0.00 | 18.75 | 0.168 0.039 | 545 27 | 0 0 |
| Carneros (Ranch 71) | 3/25/26 | 75.4 4.1 | 1351 | 48.0 3.1 | 0719 | 42.8 7.4 | 81 19 | 27 8 | 5.5 1.1 | 25.4 5.6 | 1522 | W | 266 | 0.00 | 16.20 | 0.164 0.037 | 528 25 | 40 10 |
| Carneros Upper (Ranch 81) | 3/25/26 | 76.6 4.7 | 1348 | 48.8 2.4 | 0733 | 42.5 7.9 | - | - | 8.6 1.7 | 30.1 5.1 | 1527 | W | 268 | - | - | - | - | 90 10 |
| Carneros Lower (Ranch 81) | 3/25/26 | 81.0 6.7 | 1407 | 40.2 0.9 | 0642 | 45.6 7.6 | 87 13 | 40 40 | 1.2 | 16.0 2.8 | 1625 | WNW | 294 | 0.00 | 16.94 | 0.122 0.011 | 404 18 | 0 0 |
| Rohnert Park-West (Stony Point) | 3/25/26 | 75.1 1.1 | 1315 | 35.7 0.8 | 0502 | 46.0 5.1 | 97 2 | 47 18 | 2.7 0.8 | 20.9 6.7 | 1439 | WSW | 237 | 0.00 | 6.33 | - | - | 0 0 |
| Cartograph Wines Base | 3/25/26 | 72.8 0.8 | 1315 | 43.8 6.1 | 0745 | 46.7 8.5 | 91 15 | 37 15 | 4.6 0.6 | 24.0 5.1 | 1449 | SW | 218 | 0.00 | 22.43 | 0.136 0.036 | 514 21 | 0 0 |
| Cartograph Wines Remote | 3/25/26 | 74.2 1.3 | 1225 | 39.6 0.7 | 0637 | - | - | - | - | - | - | - | - | - | - | - | 20 10 |
| Rice-Spivak Vineyard | 3/25/26 | 74.5 0.7 | 1305 | 31.6 0.0 | 0452 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Penngrove (Asellus) | 3/25/26 | 74.9 2.3 | 1300 | 38.0 0.5 | 0642 | 44.2 4.8 | 95 1 | 41 17 | 2.6 0.2 | 15.1 3.5 | 1423 | SW | 228 | 0.00 | 45.71 | - | - | 0 0 |
| Petaluma (Ranch 10) | 3/25/26 | 76.2 5.6 | 1341 | 40.4 2.4 | 0319 | 44.4 9.9 | 90 6 | 35 21 | 3.7 1.0 | 17.5 0.1 | 1350 | WSW | 258 | 0.00 | 15.67 | 0.156 0.023 | 486 19 | 100 20 |
| Max | 81.0 | - | 49.0 | - | 48.0 | 100 | 48 | 8.6 | 30.1 | - | - | 0.00 | 45.71 | 0.175 | 579 | - | |
| Avg | - | - | - | - | 44.7 | - | - | 3.8 | - | - | - | - | - | - | - | - | |
| Min | 72.8 | - | 31.6 | - | 39.6 | 72 | 23 | 1.2 | 10.1 | - | - | 0.00 | 5.29 | 0.122 | 404 | - |