| 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) | 4/2/26 | 64.2 9.1 | 1630 | 42.5 2.9 | 0614 | 36.8 10.6 | 63 | 89 11 | 26 40 | 5.1 | 18.1 1.1 | 1810 | WNW | 289 | 0.00 | 37.42 | - | - | 60 10 |
| Rockpile Upper (Cooley) | 4/2/26 | 60.6 8.4 | 1551 | 38.3 2.5 | 0652 | 36.2 9.6 | 71 | 97 3 | 30 41 | 10.2 | 27.6 9.6 | 1939 | NNW | 328 | 0.00 | 38.10 | 0.151 0.110 | 619 424 | 60 10 |
| Lower Dry Creek Valley | 4/2/26 | 69.7 6.2 | 1650 | 38.3 11.4 | 0646 | 39.5 10.9 | 64 | 100 0 | 26 24 | 4.6 | 19.2 3.4 | 1037 | NW | 306 | 0.00 | 33.78 | 0.157 0.093 | 540 324 | 40 10 |
| Geyserville-South (Nervo Station) | 4/2/26 | 68.7 8.1 | 1606 | 41.0 7.1 | 0633 | - | - | - | - | 4.3 | 18.2 1.7 | 1028 | W | 277 | 0.01 | 25.03 | - | - | 70 10 |
| Geyserville (Ranch 3) | 4/2/26 | 67.2 4.9 | 1749 | 40.8 8.1 | 0601 | 40.4 10.4 | 66 | 100 0 | 29 24 | 5.4 | 18.3 2.2 | 1202 | NW | 313 | 0.00 | 32.01 | 0.155 0.106 | 530 383 | 40 10 |
| Geyserville-North (Hoffman) | 4/2/26 | 68.1 6.0 | 1646 | 40.0 7.5 | 0609 | 40.4 9.9 | 66 | 96 0 | 31 26 | 4.3 | 16.7 0.6 | 1222 | N | 354 | 0.00 | 25.50 | 0.144 0.101 | 515 394 | 0 0 |
| Knights Valley (Bavarian Lion) | 4/2/26 | 67.9 8.8 | 1624 | 35.3 13.3 | 0640 | 39.2 9.7 | 70 | 98 1 | 30 25 | 2.7 | 12.4 1.4 | 0947 | NW | 317 | 0.00 | 28.29 | 0.137 0.087 | 552 405 | 60 10 |
| HWY 128/Chalk Hill Rd (Landslide) | 4/2/26 | 69.7 9.5 | 1752 | 38.0 12.3 | 0653 | 40.4 9.9 | 69 | 98 2 | 29 31 | 2.5 | 14.0 0.0 | 1034 | NW | 322 | 0.00 | 28.59 | 0.130 0.110 | 486 479 | 60 10 |
| Jimtown-North (Piccolo Ranch 15) | 4/2/26 | 69.6 9.1 | 1702 | 37.3 11.5 | 0658 | 39.3 11.1 | 65 | 100 0 | 27 29 | 2.3 | 15.8 0.4 | 1105 | WNW | 282 | 0.00 | 29.77 | 0.127 0.084 | 484 366 | 70 10 |
| Cloverdale-SE (Ranch 38) | 4/2/26 | 65.5 7.8 | 1646 | 42.0 3.8 | 0717 | 40.0 9.4 | 68 | 96 4 | 33 36 | 7.7 | 21.8 1.5 | 1042 | NNE | 29 | 0.00 | 32.90 | 0.144 0.104 | 526 404 | 30 10 |
| Geyserville-East (Ranch 40) | 4/2/26 | 67.3 6.9 | 1704 | 41.3 4.8 | 0552 | 40.7 9.1 | 67 | 94 5 | 34 30 | 4.4 | 19.0 0.7 | 1335 | WNW | 285 | 0.00 | 32.50 | 0.148 0.108 | 573 447 | 40 10 |
| N Chalk Hill Rd (Ranch 63) | 4/2/26 | 68.6 8.3 | 1829 | 35.8 12.9 | 0704 | 39.0 9.4 | 67 | 100 0 | 29 28 | 2.6 | 14.0 0.4 | 1001 | WNW | 303 | 0.00 | 30.09 | 0.129 0.082 | 498 367 | 60 10 |
| Cloverdale-East (Ranch 83) | 4/2/26 | 66.6 7.2 | 1751 | 38.4 6.1 | 0539 | 20.8 28.6 | - | - | - | 4.5 | 19.4 3.7 | 1204 | NNW | 344 | 0.00 | 31.37 | 0.151 0.107 | 559 425 | 40 10 |
| Upper Dry Creek Valley | 4/2/26 | 68.1 5.8 | 1727 | 38.6 11.0 | 0617 | 39.0 10.5 | 62 | 98 0 | 27 26 | - | 15.6 1.7 | 2201 | WNW | 299 | 0.00 | 34.98 | 0.151 0.089 | 588 386 | 70 10 |
| Big River | 4/2/26 | 66.6 7.3 | 1744 | 40.4 9.4 | 0711 | 40.7 10.0 | 66 | 100 0 | 33 31 | 3.3 | 14.7 3.6 | 1044 | W | 281 | 0.00 | 30.41 | 0.153 0.100 | 609 440 | 10 10 |
| Max | 69.7 | - | 42.5 | - | 40.7 | 71 | 100 | 34 | 10.2 | 27.6 | - | - | 0.01 | 38.10 | 0.157 | 619 | - | |
| Avg | - | - | - | - | 38.0 | 66 | - | - | 4.6 | - | - | - | - | - | - | - | - | |
| Min | 60.6 | - | 35.3 | - | 20.8 | 62 | 89 | 26 | 2.3 | 12.4 | - | - | 0.00 | 25.03 | 0.127 | 484 | - |
| 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) | 4/2/26 | 73.3 12.7 | 1711 | 40.3 10.6 | 0712 | 41.9 7.4 | 66 | 89 2 | 32 36 | 2.4 | 18.0 2.7 | 1056 | 0.00 | 29.49 | 0.145 0.080 | 570 340 | 0 |
| Windsor-East (Ranch 16) | 4/2/26 | 68.8 7.5 | 1612 | 36.6 13.4 | 0659 | 40.3 10.5 | 69 | 100 0 | 30 27 | 2.6 | 14.2 0.5 | 1044 | 0.01 | 22.32 | 0.148 0.090 | 573 398 | 50 |
| Mark West-North (Ranch 14) | 4/2/26 | 67.6 5.5 | 1504 | 39.2 11.4 | 0617 | 40.3 10.5 | 66 | 98 1 | 29 25 | 1.5 | 10.6 0.9 | 1532 | 0.00 | 24.14 | 0.022 0.011 | 0 0 | 60 |
| Windsor-SE (Silk Rd) | 4/2/26 | 67.6 6.4 | 1657 | 37.8 12.7 | 0635 | 40.7 10.3 | 71 | 100 2 | 30 27 | 2.6 | 16.2 0.2 | 1046 | 0.01 | 21.53 | 0.146 0.072 | 567 311 | 50 |
| Fulton-NW (Ranch 5) | 4/2/26 | 66.7 5.5 | 1731 | 38.4 13.0 | 0703 | 35.8 12.0 | 62 | 100 0 | 3 0 | 2.7 | 15.3 0.1 | 1053 | 0.00 | 24.50 | 0.149 0.083 | 570 359 | 50 |
| 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) | 4/2/26 | 68.4 8.4 | 1659 | 38.9 12.3 | 0707 | 42.2 8.9 | 69 | 97 1 | 33 25 | 0.3 | 8.3 7.0 | 0111 | 0.00 | 23.56 | - | - | 50 |
| Fulton-SW (Ranch 21) | 4/2/26 | 66.3 4.4 | 1606 | 38.4 12.8 | 0703 | 30.4 7.6 | 60 | 100 0 | 0 0 | 2.9 | 15.1 2.1 | 1036 | 0.00 | 23.96 | 0.157 0.072 | 616 364 | 0 |
| NW Santa Rosa (Piner Road) | 4/2/26 | 66.6 6.2 | 1627 | 38.5 12.4 | 0702 | 43.8 8.9 | 76 | 100 0 | 37 27 | 1.3 | 11.2 5.0 | 1743 | 0.00 | 22.38 | - | - | 20 |
| River Rd South (Denner Ranch) | 4/2/26 | 68.2 7.1 | 1520 | 37.0 12.9 | 0655 | -10.0 16.7 | 30 | 100 0 | 0 0 | 3.3 | 16.2 3.5 | 1114 | - | - | - | - | 60 |
| West Santa Rosa (LOV Vineyard) | 4/2/26 | 66.9 6.1 | 1604 | 39.2 12.0 | 0708 | 41.1 9.8 | 71 | 99 2 | 30 26 | 2.3 | 12.7 4.0 | 1346 | 0.01 | 17.32 | 0.030 0.009 | 0 0 | 40 |
| Guerneville Rd (Prokopakis) | 4/2/26 | 67.3 5.5 | 1804 | 40.0 11.5 | 0640 | 42.2 9.3 | 72 | 99 1 | 31 24 | - | - | - | 0.00 | 23.49 | - | - | 50 |
| Guerneville Rd West (Balletto) | 4/2/26 | 66.5 5.7 | 1637 | 38.5 13.0 | 0636 | 43.1 9.1 | 76 | 100 1 | 36 27 | 2.5 | 13.2 2.0 | 1104 | 0.01 | 22.97 | - | - | 0 |
| Sanchietti Ranch | 4/2/26 | 66.7 5.5 | 1617 | 39.1 13.4 | 0628 | 44.2 8.6 | - | 98 2 | 40 26 | 2.9 | 15.4 1.5 | 1112 | 0.00 | 23.87 | - | - | 0 |
| Occidental Rd (Sebastopol) | 4/2/26 | 67.8 6.9 | 1550 | 37.6 13.8 | 0644 | 46.9 8.2 | 86 | 100 0 | 48 39 | 2.9 | 16.0 1.3 | 1043 | 0.00 | 7.23 | - | - | 0 |
| Lower Westside Rd (Ranch 12) | 4/2/26 | 69.0 6.9 | 1713 | 38.5 10.5 | 0725 | 41.0 9.9 | 71 | 100 0 | 28 28 | 1.7 | 13.2 3.6 | 1059 | 0.00 | 28.68 | - | - | 50 |
| Guerneville (Laughlin Rd) | 4/2/26 | 67.8 5.8 | 1429 | 41.1 7.4 | 0059 | 42.1 8.6 | 76 | 99 2 | 22 35 | 2.0 | 16.0 0.9 | 1612 | 0.01 | 39.89 | - | - | 50 |
| Korbel (Winery) | 4/2/26 | 67.4 5.6 | 1501 | 43.3 6.6 | 0755 | 43.3 8.2 | 75 | 100 3 | 28 30 | 2.1 | 16.0 0.9 | 1050 | 0.00 | 37.16 | - | - | 50 |
| Forestville (Shone Farms) | 4/2/26 | 68.2 7.2 | 1633 | 39.7 10.6 | 0653 | 41.9 8.9 | 71 | 98 0 | 31 30 | 2.7 | 16.2 2.2 | 1039 | 0.18 | 30.85 | 0.143 0.074 | 552 306 | 50 |
| Forestville-NE (Ranch 30) | 4/2/26 | 68.3 6.8 | 1620 | 40.1 9.0 | 0744 | 43.1 8.3 | 76 | 100 1 | 36 28 | 2.6 | 18.6 0.8 | 1039 | 0.01 | 28.79 | 0.144 0.077 | 561 317 | 70 |
| Green Valley Vineyard | 4/2/26 | 64.7 4.7 | 1458 | 39.3 9.1 | 0634 | 41.2 9.5 | 73 | 98 1 | 29 30 | 3.0 | 13.8 6.1 | 1044 | 0.01 | 35.59 | 0.034 0.009 | 20 7 | 50 |
| Green Valley (Sanchietti) | 4/2/26 | 67.7 4.4 | 1505 | 37.1 15.1 | 0636 | - | - | - | - | - | - | - | - | - | - | - | 50 |
| Keefer Ranch (Green Valley) | 4/2/26 | 65.6 4.0 | 1451 | 38.1 11.5 | 0647 | 42.6 9.0 | 77 | 99 1 | 37 26 | - | - | - | 0.00 | 31.81 | - | - | 50 |
| Graton-South (Mill Station Rd) | 4/2/26 | 65.7 4.3 | 1529 | 38.1 12.2 | 0729 | 41.3 10.3 | 74 | 99 0 | 32 27 | 1.1 | 9.9 1.8 | 1031 | 0.00 | 28.24 | - | - | 60 |
| Occidental (Horseshoe Bend) | 4/2/26 | 61.6 2.3 | 1506 | 41.6 4.9 | 0652 | 41.4 9.6 | - | 95 5 | 35 28 | - | - | - | 0.01 | 32.82 | - | - | 70 |
| Sexton Valley (Jacqueline's Blk) | 4/2/26 | 64.4 5.0 | 1447 | 37.9 12.8 | 0725 | 42.8 9.4 | 77 | 100 2 | 38 27 | 2.0 | 13.1 5.2 | 1537 | 0.01 | 16.20 | - | - | 60 |
| Sebastopol Hills (Burnside Rd) | 4/2/26 | 63.0 4.7 | 1446 | 43.0 6.6 | 0643 | 42.8 9.0 | 72 | 93 7 | 40 32 | 2.4 | 13.0 2.7 | 1041 | 0.00 | 28.45 | - | - | 0 |
| Seaview/Fort Ross (Hirsch) | 4/2/26 | 55.6 4.4 | 1420 | 40.3 2.4 | 0702 | 39.9 7.8 | 77 | 96 1 | 55 35 | 4.1 | 16.5 1.8 | 1228 | 0.00 | 49.22 | 0.127 0.096 | 589 466 | 40 |
| Max | 73.3 | - | 43.3 | - | 46.9 | 86 | 100 | 55 | 4.1 | 18.6 | - | 0.18 | 49.22 | 0.157 | 616 | - | |
| Avg | - | - | - | - | 39.5 | 71 | - | - | 2.3 | - | - | - | - | - | - | - | |
| Min | 55.6 | - | 36.6 | - | -10.0 | 30 | 89 | 0 | 0.3 | 8.3 | - | 0.00 | 7.23 | 0.022 | 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 | 4/2/26 | 63.5 8.3 | 1632 | 38.7 7.6 | 0641 | 39.3 10.2 | 96 2 | 33 34 | 2.6 0.4 | 9.4 4.4 | 0116 | N | 354 | 0.01 | 5.70 | 0.131 0.106 | 538 454 | 70 10 |
| Lower Bennett Valley | 4/2/26 | 65.7 7.1 | 1526 | 34.1 17.1 | 0653 | 41.1 10.3 | 100 0 | 36 31 | 2.7 0.1 | 15.2 0.4 | 1613 | SSW | 211 | 0.00 | 22.55 | 0.141 0.095 | 570 415 | 50 10 |
| Kenwood (Wildwood) | 4/2/26 | 66.5 8.2 | 1604 | 38.2 13.4 | 0659 | 41.4 9.8 | 100 0 | 27 40 | 3.3 1.4 | 15.9 1.9 | 1621 | NNW | 332 | 0.00 | 27.17 | 0.136 0.096 | 537 400 | 70 10 |
| Sonoma Valley (Bedrock) | 4/2/26 | 65.7 7.4 | 1645 | 40.3 9.7 | 0657 | 39.9 9.7 | 94 4 | 26 38 | - | - | - | - | 0.00 | 23.54 | - | - | 50 10 |
| Sonoma-West (Arnold) | 4/2/26 | 66.7 5.7 | 1533 | 38.2 11.6 | 0702 | 41.5 10.1 | 100 0 | 34 31 | 3.7 0.6 | 15.8 1.5 | 1636 | W | 270 | 0.00 | 17.27 | 0.159 0.106 | 607 421 | 50 10 |
| Sonoma Valley HS | 4/2/26 | 66.6 6.9 | 1507 | 40.0 11.6 | 0649 | 44.1 9.1 | 100 0 | 35 38 | 2.2 0.7 | 8.7 2.1 | 1917 | SW | 222 | 0.04 | 5.50 | 0.139 0.102 | 555 425 | 50 10 |
| Sonoma East (Bundschu01) | 4/2/26 | 66.9 7.1 | 1555 | 37.9 12.7 | 0634 | 40.8 10.7 | 97 0 | 29 40 | 3.4 0.4 | 16.0 2.2 | 1438 | N | 2 | 0.00 | 17.73 | 0.154 0.114 | 578 463 | 50 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) | 4/2/26 | 70.6 10.0 | 1506 | 36.8 13.4 | 0704 | 41.1 10.5 | 95 0 | 28 41 | 2.2 1.1 | 14.5 3.4 | 1706 | W | 263 | 0.00 | 15.15 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 4/2/26 | 67.8 6.4 | 1449 | 37.5 12.0 | 0649 | 41.5 10.1 | 96 1 | 29 37 | 4.5 0.6 | 15.7 0.3 | 1741 | W | 270 | 0.01 | 18.96 | 0.164 0.116 | 608 465 | 20 10 |
| Carneros (Ranch 71) | 4/2/26 | 66.2 6.8 | 1543 | 42.2 9.3 | 0649 | 41.1 10.6 | 92 7 | 28 43 | 4.4 0.2 | 18.8 1.4 | 1734 | W | 265 | 0.00 | 16.44 | 0.160 0.115 | 592 455 | 20 10 |
| Carneros Upper (Ranch 81) | 4/2/26 | 67.9 8.1 | 1523 | 42.7 9.1 | 0636 | 40.1 0.3 | - | - | 5.3 2.2 | 18.6 5.4 | 1751 | WSW | 254 | - | - | - | - | 50 10 |
| Carneros Lower (Ranch 81) | 4/2/26 | 70.1 7.2 | 1617 | 37.6 12.6 | 0555 | 11.4 13.8 | 100 0 | 0 0 | 1.6 0.9 | 18.0 8.3 | 1505 | NNW | 348 | 0.00 | 16.94 | 0.124 0.082 | 452 321 | 0 0 |
| Rohnert Park-West (Stony Point) | 4/2/26 | 64.2 4.8 | 1444 | 36.3 14.5 | 0658 | 42.7 9.3 | 98 0 | 41 26 | 3.5 1.1 | 18.0 0.1 | 1535 | SW | 222 | 0.00 | 6.68 | - | - | 0 0 |
| Cartograph Wines Base | 4/2/26 | 63.1 4.1 | 1418 | 40.8 10.4 | 0721 | 43.7 8.3 | 96 3 | 36 34 | 4.8 0.6 | 22.8 1.9 | 1452 | S | 186 | 0.00 | 22.81 | 0.137 0.066 | 574 273 | 0 0 |
| Cartograph Wines Remote | 4/2/26 | 62.9 1.7 | 1252 | 38.8 11.5 | 0724 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Rice-Spivak Vineyard | 4/2/26 | 65.2 3.1 | 1402 | 32.9 15.5 | 0647 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Penngrove (Asellus) | 4/2/26 | 65.1 5.8 | 1410 | 38.5 10.7 | 0559 | 41.8 9.0 | 97 0 | 34 29 | 3.4 0.4 | 14.9 2.4 | 1012 | NNW | 335 | 0.00 | 45.75 | - | - | 0 0 |
| Petaluma (Ranch 10) | 4/2/26 | 67.4 5.3 | 1435 | 36.4 13.7 | 0642 | 41.3 10.0 | 100 0 | 34 26 | 3.1 0.6 | 17.7 3.8 | 1343 | WNW | 284 | 0.01 | 15.79 | 0.149 0.106 | 546 426 | 70 10 |
| Max | 70.6 | - | 42.7 | - | 44.1 | 100 | 41 | 5.3 | 22.8 | - | - | 0.04 | 45.75 | 0.164 | 608 | - | |
| Avg | - | - | - | - | 39.5 | - | - | 3.4 | - | - | - | - | - | - | - | - | |
| Min | 62.9 | - | 32.9 | - | 11.4 | 92 | 0 | 1.6 | 8.7 | - | - | 0.00 | 5.50 | 0.124 | 452 | - |