| 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) | 2/3/26 | 76.8 5.0 | 1521 | 52.0 2.6 | 0022 | 40.6 1.4 | 49 | 83 0 | 21 1 | 1.5 | 7.5 3.8 | 1445 | E | 92 | 0.00 | 29.13 | - | - | 0 0 |
| Rockpile Upper (Cooley) | 2/4/26 | 73.1 0.3 | 1401 | 54.8 0.6 | 0008 | 34.0 1.6 | 35 | 61 6 | 19 4 | 4.3 | 13.4 0.7 | 1430 | S | 173 | 0.00 | 29.84 | 0.132 0.029 | 370 22 | 0 0 |
| Cloverdale-East (Ranch 83) | 2/4/26 | 77.8 0.1 | 1537 | 35.8 1.0 | 0112 | 38.3 2.3 | - | - | - | 4.5 | 18.7 2.4 | 0520 | N | 2 | 0.00 | 25.21 | 0.091 0.004 | 315 18 | 0 0 |
| Cloverdale-SE (Ranch 38) | 2/4/26 | 77.7 0.2 | 1515 | 45.2 1.5 | 0215 | 42.7 0.0 | 60 | 89 5 | 27 4 | 5.8 | 24.4 8.1 | 0846 | SE | 135 | 0.00 | 26.66 | 0.099 0.011 | 310 18 | 0 0 |
| Geyserville-North (Hoffman) | 2/4/26 | 74.0 2.2 | 1455 | 34.9 1.9 | 0713 | 41.9 0.1 | 75 | 96 0 | 30 4 | 1.5 | 7.0 0.8 | 1337 | E | 84 | 0.00 | 25.50 | 0.079 0.002 | 300 7 | 0 0 |
| Geyserville (Ranch 3) | 2/4/26 | 73.6 1.2 | 1539 | 36.3 1.3 | 0659 | 42.7 0.0 | 76 | 100 0 | 29 3 | 2.2 | 7.2 0.6 | 1037 | NW | 308 | 0.00 | 25.55 | 0.080 0.002 | 306 4 | 0 0 |
| Geyserville-East (Ranch 40) | 2/4/26 | 74.0 4.7 | 1503 | 45.0 1.4 | 0641 | 47.1 2.5 | 70 | 93 8 | 34 3 | 3.0 | 12.1 0.4 | 1834 | S | 174 | 0.00 | 25.99 | 0.093 0.001 | 332 5 | 0 0 |
| Geyserville-South (Nervo Station) | 2/4/26 | 73.5 1.6 | 1537 | 39.5 0.2 | 0512 | - | - | - | - | 1.1 | 7.8 0.3 | 1330 | SE | 132 | 0.01 | 19.55 | - | - | 0 0 |
| Jimtown-North (Piccolo Ranch 15) | 2/4/26 | 77.2 0.4 | 1643 | 32.4 1.1 | 0713 | 40.6 0.5 | 78 | 100 0 | 30 6 | 0.9 | 4.4 3.1 | 1520 | NW | 317 | 0.00 | 23.77 | 0.064 0.001 | 273 9 | 0 0 |
| Jimtown-NE (Red Fan) | 8/26/25 | 88.9 0.8 | 1609 | 56.4 0.1 | 0146 | 53.1 1.9 | 64 | 94 2 | 20 8 | 3.5 | 13.4 0.5 | 1919 | S | 169 | 0.00 | 0.00 | 0.187 0.011 | 528 30 | 0 0 |
| HWY 128/Chalk Hill Rd (Landslide) | 2/4/26 | 78.0 2.1 | 1450 | 32.4 0.9 | 0718 | 41.4 1.0 | 81 | 100 0 | 34 7 | 0.8 | 6.1 1.0 | 1345 | SSW | 201 | 0.00 | 22.94 | 0.071 0.001 | 282 9 | 0 0 |
| N Chalk Hill Rd (Ranch 63) | 2/4/26 | 73.6 0.2 | 1507 | 30.8 0.7 | 0706 | 40.7 0.6 | 80 | 100 0 | 36 7 | 0.7 | 6.1 0.9 | 1505 | SSW | 212 | 0.00 | 24.29 | 0.070 0.001 | 276 11 | 0 0 |
| Knights Valley (Bavarian Lion) | 2/4/26 | 77.4 2.7 | 1514 | 32.4 2.1 | 0722 | 39.6 0.4 | 80 | 99 0 | 24 4 | 1.9 | 8.0 0.9 | 1530 | S | 170 | 0.00 | 22.82 | 0.077 0.002 | 307 3 | - |
| Upper Dry Creek Valley | 2/4/26 | 74.1 0.5 | 1520 | 35.8 1.1 | 0729 | 42.1 0.3 | 77 | 98 0 | 25 6 | 1.3 | 8.4 3.3 | 1344 | ESE | 119 | 0.00 | 27.62 | 0.086 0.007 | 334 14 | - |
| Lower Dry Creek Valley | 2/4/26 | 73.9 2.7 | 1506 | 32.9 1.3 | 0713 | 42.5 0.2 | 80 | 100 0 | 27 3 | 0.5 | 8.4 0.9 | 1324 | ESE | 106 | 0.00 | 27.19 | 0.078 0.005 | 308 8 | 0 0 |
| Max | 78.0 | - | 54.8 | - | 47.1 | 81 | 100 | 36 | 5.8 | 24.4 | - | - | 0.01 | 29.84 | 0.132 | 370 | - | |
| Avg | - | - | - | - | 41.1 | 70 | - | - | 2.1 | - | - | - | - | - | - | - | - | |
| Min | 73.1 | - | 30.8 | - | 34.0 | 35 | 61 | 19 | 0.5 | 4.4 | - | - | 0.00 | 19.55 | 0.064 | 273 | - |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Healdsburg-South (Sodini) | 2/4/26 | 76.0 2.3 | 1639 | 34.8 0.3 | 0709 | - | - | 100 0 | 32 4 | 0.5 | 6.0 0.0 | 1724 | 0.00 | 19.55 | - | - | 0 |
| Windsor-NW (Ranch 8) | 2/4/26 | 75.8 0.6 | 1533 | 39.6 0.5 | 0728 | 45.5 0.7 | 75 | 86 0 | 44 8 | 0.5 | 7.8 2.0 | 2348 | 0.00 | 23.60 | 0.077 0.003 | 312 11 | 0 |
| Windsor-East (Ranch 16) | 2/4/26 | 73.8 1.5 | 1439 | 33.7 0.6 | 0738 | 44.5 1.0 | 83 | 100 0 | 40 1 | 0.8 | 5.6 0.0 | 1509 | 0.00 | 17.44 | 0.078 0.002 | 320 8 | 0 |
| Mark West-North (Ranch 14) | 2/4/26 | 73.1 2.5 | 1538 | 34.2 0.5 | 0611 | 43.6 0.8 | 81 | 99 0 | 38 1 | 0.6 | 5.8 0.2 | 1449 | 0.00 | 19.07 | 0.009 0.001 | 0 0 | 0 |
| Windsor-SE (Silk Rd) | 2/3/26 | 71.6 3.2 | 1415 | 32.0 0.5 | 0655 | 41.4 0.4 | 81 | 100 0 | 38 7 | 0.7 | 5.2 1.9 | 1348 | 0.00 | 15.45 | 0.074 0.002 | 311 20 | 0 |
| Fulton-NW (Ranch 5) | 2/4/26 | 69.7 1.0 | 1519 | 32.4 0.2 | 0628 | 19.5 13.3 | 53 | 100 0 | 3 0 | 0.9 | 6.3 0.4 | 1445 | 0.00 | 19.05 | 0.075 0.002 | 314 8 | 0 |
| Windsor-South (Laughlin Rd) | 2/4/26 | 72.8 2.2 | 1452 | 33.3 1.2 | 0653 | 31.7 5.3 | 68 | 100 0 | 0 0 | - | - | - | 0.00 | 19.00 | - | - | - |
| Fulton-SE (Barnes Rd) | 2/4/26 | 70.9 2.3 | 1412 | 34.0 0.0 | 0704 | 44.4 0.7 | 84 | 98 1 | 48 3 | 0.2 | 3.4 3.4 | 2344 | 0.00 | 18.33 | - | - | - |
| Fulton-SW (Ranch 21) | 2/4/26 | 69.8 1.1 | 1421 | 32.9 0.5 | 0651 | -0.9 5.3 | 43 | 100 0 | 0 0 | 1.4 | 6.9 0.7 | 1440 | 0.00 | 18.60 | 0.079 0.003 | 327 10 | - |
| Santa Rosa-NW (Goldfields) | 2/4/26 | 72.6 1.5 | 1412 | 32.2 0.5 | 0655 | 44.1 0.4 | 82 | 100 0 | 42 3 | 1.2 | 6.9 0.1 | 1516 | 0.00 | 19.57 | 0.072 0.001 | 292 2 | - |
| Goldfields Remote | 2/3/26 | 69.6 4.3 | 1419 | 32.2 0.7 | 0725 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| NW Santa Rosa (Piner Road) | 2/4/26 | 69.8 1.2 | 1452 | 31.8 0.2 | 0704 | 44.7 0.7 | 89 | 100 0 | 59 1 | 0.9 | 6.9 1.4 | 1452 | 0.00 | 16.85 | - | - | 0 |
| River Rd South (Denner Ranch) | 2/4/26 | 71.1 0.4 | 1419 | 32.6 0.2 | 0737 | 45.1 0.4 | 86 | 100 0 | 43 1 | 1.5 | 9.4 2.0 | 1431 | - | - | - | - | 0 |
| West Santa Rosa (LOV Vineyard) | 2/4/26 | 70.0 0.4 | 1437 | 33.1 0.5 | 0741 | 44.0 0.4 | 84 | 100 0 | 50 1 | 0.8 | 7.3 1.0 | 1441 | 0.00 | 15.79 | 0.010 0.001 | 1 0 | 0 |
| Guerneville Rd (Prokopakis) | 2/4/26 | 69.4 1.7 | 1447 | 33.6 1.2 | 0739 | 44.8 0.4 | 85 | 100 0 | 44 4 | - | - | - | 0.00 | 17.71 | - | - | 0 |
| Guerneville Rd West (Balletto) | 2/4/26 | 68.8 0.6 | 1522 | 31.9 0.2 | 0703 | 43.7 0.4 | 88 | 100 0 | 61 4 | 1.1 | 7.9 1.1 | 1440 | 0.00 | 17.59 | - | - | 0 |
| Sanchietti Ranch | 2/4/26 | 68.7 1.0 | 1430 | 33.7 0.1 | 0548 | 46.0 0.6 | - | 100 0 | 67 1 | 1.6 | 9.1 1.8 | 1406 | 0.00 | 18.47 | - | - | - |
| Occidental Rd (Sebastopol) | 2/4/26 | 69.4 1.6 | 1440 | 31.6 0.0 | 0709 | 48.3 0.6 | 100 | 100 0 | 95 10 | 1.0 | 7.2 0.4 | 1352 | 0.00 | 6.81 | - | - | 0 |
| Lower Westside Rd (Ranch 12) | 2/4/26 | 78.2 2.2 | 1443 | 36.9 0.3 | 0746 | 44.0 0.7 | 75 | 100 0 | 32 3 | 0.5 | 4.4 0.3 | 2349 | 0.00 | 22.96 | - | - | 0 |
| Guerneville (Laughlin Rd) | 2/4/26 | 69.2 0.5 | 1339 | 40.9 2.3 | 0743 | 46.5 1.1 | 88 | 99 0 | 44 3 | 0.6 | 5.0 1.5 | 1512 | 0.01 | 31.41 | - | - | - |
| Korbel (Winery) | 2/4/26 | 72.7 1.2 | 1502 | 42.6 2.9 | 0800 | 47.7 1.7 | 88 | 100 0 | 40 2 | 1.0 | 8.5 2.0 | 1345 | 0.03 | 28.81 | - | - | - |
| Forestville (Shone Farms) | 2/4/26 | 72.2 1.8 | 1505 | 36.6 0.4 | 0724 | 46.0 1.0 | 82 | 98 0 | 42 1 | 1.1 | 7.5 0.3 | 1647 | 0.00 | 24.38 | 0.075 0.001 | 307 9 | 0 |
| Forestville-NE (Ranch 30) | 2/4/26 | 72.8 2.1 | 1447 | 38.2 2.0 | 0731 | 46.7 1.7 | 87 | 100 0 | 49 3 | 1.1 | 7.1 0.5 | 1640 | 0.02 | 22.74 | 0.074 0.001 | 296 4 | - |
| Green Valley Vineyard | 2/4/26 | 71.6 1.7 | 1510 | 39.8 1.7 | 0511 | 46.8 1.4 | 84 | 99 0 | 49 6 | 1.6 | 6.1 0.9 | 1248 | 0.01 | 27.58 | 0.009 0.001 | 0 0 | - |
| Green Valley (Sanchietti) | 2/4/26 | 74.7 3.2 | 1458 | 34.8 2.3 | 0738 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| Keefer Ranch (Green Valley) | 2/4/26 | 72.1 1.5 | 1537 | 32.8 0.2 | 0724 | 43.9 1.2 | 88 | 100 0 | 55 6 | - | - | - | 0.00 | 24.74 | - | - | - |
| Graton-South (Mill Station Rd) | 2/4/26 | 70.5 0.4 | 1518 | 32.3 0.9 | 0711 | 43.6 4.0 | 86 | 100 2 | 52 4 | 0.3 | 5.0 1.4 | 1423 | 0.00 | 21.92 | - | - | 0 |
| Occidental (Horseshoe Bend) | 2/4/26 | 71.0 0.0 | 1507 | 46.6 1.6 | 0451 | 47.5 1.6 | - | 95 8 | 47 7 | - | - | - | 0.01 | 16.15 | - | - | - |
| Sexton Valley (Jacqueline's Blk) | 2/4/26 | 70.8 1.0 | 1517 | 33.6 1.4 | 0736 | 44.2 0.6 | 87 | 100 0 | 55 1 | 1.0 | 8.0 2.1 | 1339 | 0.01 | 7.44 | - | - | 0 |
| Sebastopol Hills (Burnside Rd) | 2/4/26 | 69.3 1.7 | 1529 | 42.6 0.4 | 0717 | 49.2 1.0 | 85 | 98 0 | 59 0 | 0.6 | 7.2 1.5 | 1356 | 0.00 | 21.70 | - | - | 0 |
| Seaview/Fort Ross (Hirsch) | 2/4/26 | 72.4 1.3 | 1435 | 57.6 0.0 | 0308 | 38.6 2.4 | 40 | 55 12 | 29 6 | 4.7 | 16.1 5.1 | 2351 | 0.00 | 38.17 | 0.129 0.031 | 352 27 | - |
| Max | 78.2 | - | 57.6 | - | 49.2 | 100 | 100 | 95 | 4.7 | 16.1 | - | 0.03 | 38.17 | 0.129 | 352 | - | |
| Avg | - | - | - | - | 42.0 | 80 | - | - | 1.1 | - | - | - | - | - | - | - | |
| Min | 68.7 | - | 31.6 | - | -0.9 | 40 | 55 | 0 | 0.2 | 3.4 | - | 0.00 | 6.81 | 0.009 | 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 | 2/4/26 | 75.1 5.1 | 1539 | 44.7 2.8 | 0645 | 40.6 2.9 | 88 2 | 19 24 | 2.2 0.1 | 9.2 3.1 | 1520 | NNE | 18 | 0.00 | 5.41 | 0.098 0.011 | 362 18 | - |
| Lower Bennett Valley | 2/4/26 | 74.8 5.8 | 1407 | 30.4 0.4 | 0623 | 41.4 0.8 | 100 0 | 33 20 | 1.7 0.1 | 9.2 0.1 | 1424 | SE | 144 | 0.00 | 17.66 | 0.086 0.009 | 323 14 | 0 0 |
| Kenwood (Wildwood) | 2/4/26 | 69.8 0.4 | 1353 | 34.5 0.1 | 0730 | 45.0 1.0 | 100 0 | 51 3 | 3.2 0.1 | 10.7 0.8 | 1356 | SW | 218 | 0.00 | 21.27 | 0.077 0.003 | 284 6 | - |
| Sonoma Valley (Bedrock) | 2/4/26 | 68.4 0.5 | 1447 | 33.8 0.2 | 0701 | 43.6 0.5 | 99 2 | 52 1 | - | - | - | - | 0.00 | 17.18 | - | - | - |
| Sonoma-West (Arnold) | 2/4/26 | 72.1 1.4 | 1510 | 34.6 0.7 | 0633 | 44.3 0.6 | 100 0 | 47 2 | 1.8 0.1 | 9.5 1.1 | 1302 | S | 186 | 0.00 | 14.43 | 0.094 0.002 | 369 2 | - |
| Sonoma Valley HS | 2/4/26 | 70.3 1.4 | 1527 | 35.1 0.1 | 0659 | 46.2 0.4 | 100 0 | 56 4 | 1.0 0.1 | 7.9 2.2 | 1156 | SSW | 197 | 0.00 | 5.16 | 0.078 0.003 | 325 2 | - |
| Sonoma East (Bundschu01) | 2/4/26 | 72.5 1.8 | 1520 | 34.5 0.9 | 0716 | 43.8 0.2 | 98 0 | 48 2 | 1.6 0.1 | 9.0 0.9 | 1533 | SE | 146 | 0.00 | 11.78 | 0.087 0.005 | 345 7 | - |
| 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) | 2/4/26 | 72.3 0.8 | 1449 | 34.7 0.3 | 0718 | 44.0 0.3 | 98 1 | 49 0 | 1.1 0.1 | 9.8 1.0 | 1443 | SE | 146 | 0.00 | 11.06 | - | - | 0 0 |
| Ricci Vineyards (Carneros) | 2/4/26 | 70.2 0.5 | 1454 | 34.5 0.0 | 0719 | 44.0 0.4 | 98 0 | 51 1 | 3.5 0.4 | 14.3 2.2 | 1609 | ESE | 120 | 0.00 | 14.07 | 0.093 0.004 | 355 4 | - |
| Carneros (Ranch 71) | 2/4/26 | 68.3 0.5 | 1448 | 46.0 1.2 | 0458 | 48.4 1.5 | 93 4 | 52 0 | 3.0 0.5 | 12.7 1.1 | 1644 | E | 97 | 0.00 | 12.09 | 0.090 0.009 | 336 7 | 0 0 |
| Carneros Upper (Ranch 81) | 2/4/26 | 72.1 0.6 | 1346 | 49.5 3.4 | 0751 | 46.5 0.4 | - | - | 4.0 0.6 | 13.7 1.4 | 1541 | ESE | 112 | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 2/4/26 | 70.2 0.1 | 1448 | 36.5 0.0 | 0704 | 33.8 4.8 | 100 0 | 0 0 | 1.8 0.1 | 10.7 0.7 | 1624 | SE | 132 | 0.00 | 12.89 | 0.063 0.003 | 210 3 | 0 0 |
| Rohnert Park-West (Stony Point) | 2/4/26 | 67.1 0.3 | 1536 | 32.3 1.3 | 0709 | 43.2 0.1 | 99 1 | 65 4 | 1.5 0.5 | 12.5 3.8 | 1633 | SE | 144 | 0.01 | 1.73 | - | - | - |
| Cartograph Wines Base | 2/4/26 | 66.5 0.3 | 1454 | 41.8 0.5 | 0728 | 49.9 0.8 | 100 0 | 68 1 | 2.5 0.6 | 13.7 4.2 | 1354 | ESE | 120 | 0.00 | 17.58 | 0.073 0.004 | 322 8 | - |
| Cartograph Wines Remote | 2/4/26 | 65.9 0.6 | 1337 | 33.7 0.2 | 0724 | - | - | - | - | - | - | - | - | - | - | - | - |
| Rice-Spivak Vineyard | 2/4/26 | 68.1 0.3 | 1543 | 30.8 0.5 | 0713 | - | - | - | - | - | - | - | - | - | - | - | - |
| Penngrove (Asellus) | 2/4/26 | 66.0 0.1 | 1527 | 34.2 1.4 | 0739 | 44.9 0.8 | 99 0 | 63 3 | 3.3 0.7 | 14.3 2.6 | 1444 | SE | 145 | 0.01 | 15.61 | - | - | 0 0 |
| Petaluma (Ranch 10) | 2/4/26 | 67.0 0.1 | 1541 | 32.7 0.1 | 0634 | 45.0 0.8 | 100 0 | 62 5 | 1.6 0.4 | 9.3 1.0 | 1202 | SSE | 154 | 0.00 | 11.68 | 0.065 0.000 | 272 5 | 0 0 |
| Max | 75.1 | - | 49.5 | - | 49.9 | 100 | 68 | 4.0 | 14.3 | - | - | 0.01 | 21.27 | 0.098 | 369 | - | |
| Avg | - | - | - | - | 44.3 | - | - | 2.3 | - | - | - | - | - | - | - | - | |
| Min | 65.9 | - | 30.4 | - | 33.8 | 88 | 0 | 1.0 | 7.9 | - | - | 0.00 | 0.00 | 0.063 | 210 | - |