| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Montesol | 9/21/26 | 81.1 3.1 | 1137 | 50.5 3.2 | 0026 | - | - | - | - | - | - | - | 0.00 | 0.82 | - | - | 100 0 |
| Pope Valley (Weeks Lake) | 9/21/26 | 81.2 2.1 | 1558 | 46.4 1.1 | 0642 | 51.6 1.4 | 100 6 | 36 6 | 2.0 0.7 | 13.2 2.0 | 1531 | SE | 141 | 0.00 | 0.03 | 0.133 0.031 | 430 130 | 40 20 |
| Dollarhide Base | 9/21/26 | 81.3 5.3 | 1556 | 52.8 0.7 | 0523 | 55.5 2.0 | 98 6 | 46 13 | 3.4 1.0 | 15.3 3.5 | 1736 | SSE | 160 | 0.00 | 0.00 | 0.148 0.031 | 468 143 | 60 20 |
| Dollarhide 1AS Remote | 9/21/26 | 80.1 5.3 | 1551 | 46.1 1.0 | 0650 | 54.0 2.7 | 93 4 | 46 15 | 3.3 1.6 | 16.2 4.0 | 1525 | SSE | 155 | - | - | - | - | 60 20 |
| Dollarhide 16A Remote | 9/21/26 | 79.7 4.8 | 1606 | 51.2 0.6 | 0710 | 55.1 1.9 | 98 6 | 47 11 | - | - | - | - | - | - | - | - | 60 20 |
| Dollarhide 18A Remote | 9/21/26 | 80.2 4.4 | 1619 | 43.7 1.9 | 0709 | 53.2 2.3 | 97 3 | 46 11 | - | - | - | - | - | - | - | - | 40 20 |
| Hardin Rd (Eakle) | 9/21/26 | 80.6 3.3 | 1527 | 48.6 0.2 | 0646 | - | - | - | - | - | - | - | - | - | - | - | 40 20 |
| Angwin | 9/21/26 | 74.4 3.1 | 1017 | 55.1 6.8 | 2003 | 49.8 7.6 | 88 19 | 40 18 | - | 12.0 3.5 | 1500 | SSE | 149 | 0.00 | 0.30 | 0.034 0.016 | 0 0 | 80 10 |
| Lower Angwin (Pioneer) | 9/21/26 | 73.1 6.0 | 1617 | 50.8 3.3 | 0059 | - | - | - | 2.5 1.0 | 13.2 4.4 | 1527 | WSW | 253 | - | - | - | - | 80 10 |
| Las Posadas (Cal Fire) | 9/21/26 | 74.0 1.4 | 1525 | 51.6 2.3 | 0505 | 53.6 1.5 | 100 2 | 52 6 | 9.6 2.0 | 22.8 4.3 | 1536 | S | 189 | 0.00 | 0.23 | 0.125 0.013 | 442 133 | - |
| Deer Park | 9/21/26 | 76.6 4.2 | 1555 | 53.5 1.5 | 0058 | 53.7 1.1 | 97 0 | 47 4 | 3.3 0.1 | 15.2 3.7 | 0033 | NW | 304 | 0.00 | 0.04 | 0.082 0.003 | 242 21 | 30 10 |
| Lower Chiles Valley (Brown) | 9/21/26 | 76.0 0.7 | 1630 | 53.8 2.3 | 0759 | 53.4 0.8 | 100 4 | 46 0 | 3.4 0.0 | 14.8 3.5 | 1429 | WNW | 296 | 0.00 | 0.14 | 0.119 0.019 | 415 97 | 0 10 |
| Moss Creek Vineyard/Reservior | 9/21/26 | 81.4 5.0 | 1527 | 52.8 1.3 | 0043 | 52.7 1.6 | 95 4 | 38 9 | - | - | - | - | 0.00 | 0.04 | - | - | 40 20 |
| Max | 81.4 | - | 55.1 | - | 55.5 | 100 | 52 | 9.6 | 22.8 | - | - | 0.00 | 0.82 | 0.148 | 468 | - | |
| Avg | - | - | - | - | 53.3 | - | - | 3.9 | - | - | - | - | - | - | - | - | |
| Min | 73.1 | - | 43.7 | - | 49.8 | 88 | 36 | 2.0 | 12.0 | - | - | 0.00 | 0.00 | 0.034 | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calistoga-North | 9/21/26 | 81.3 1.6 | 1429 | 54.3 4.1 | 0719 | 55.1 0.9 | 95 0 | 46 1 | - | - | - | - | 0.00 | 0.09 | - | - | 50 20 |
| Diamond Mtn (Schramsberg) | 9/21/26 | 76.1 3.4 | 1619 | 52.4 1.6 | 0101 | 53.4 0.9 | 100 0 | 47 4 | - | - | - | - | 0.00 | 0.13 | - | - | 70 10 |
| Diamond Mtn (McEachran) | 9/21/26 | 77.5 2.8 | 1610 | 53.5 2.2 | 0833 | 53.8 1.0 | 97 4 | 46 3 | - | - | - | - | - | - | - | - | 70 10 |
| St. Helena-North | 9/21/26 | 76.7 2.5 | 1625 | 55.2 4.2 | 2217 | 52.4 1.3 | 87 0 | 44 3 | 3.0 | 14.0 1.1 | 1711 | ESE | 122 | 0.00 | 0.11 | 0.108 0.008 | 334 60 | 20 10 |
| St. Helena (NVV Office) | 9/21/26 | 76.5 3.9 | 1559 | 55.7 2.4 | 0059 | - | - | - | 1.5 | 10.4 2.0 | 1739 | ESE | 119 | 0.00 | 0.04 | - | - | 30 10 |
| Tiara Fria (East St. Helena) | 9/21/26 | 74.4 3.4 | 1552 | 54.2 3.3 | 2309 | 54.0 1.3 | 91 2 | 51 5 | 2.3 | 14.0 3.6 | 1750 | SE | 129 | 0.00 | 0.02 | - | - | 20 10 |
| Prisoner Winery | 9/21/26 | 77.3 3.8 | 1506 | 53.4 3.5 | 2306 | 54.0 1.4 | 94 0 | 46 6 | 1.7 | 9.5 0.2 | 1742 | SE | 124 | 0.00 | 0.06 | 0.016 0.002 | 0 0 | 0 10 |
| Rutherford Hill Estate | 9/21/26 | 75.2 3.8 | 1548 | 53.6 0.2 | 2320 | 54.0 0.8 | 93 1 | 50 5 | 1.5 | 15.1 4.8 | 1752 | S | 170 | 0.00 | 0.08 | 0.085 0.008 | 290 32 | 0 0 |
| Rutherford-North (Mee Ln) | 9/21/26 | 74.7 2.7 | 1537 | 52.5 3.6 | 2309 | 53.5 1.6 | 90 0 | 51 4 | 3.4 | 17.8 5.1 | 1728 | ESE | 119 | 0.00 | 0.06 | 0.092 0.002 | 289 14 | 60 10 |
| Rutherford (STS) | 9/21/26 | 76.6 2.9 | 1513 | 53.9 5.1 | 2312 | 55.7 1.6 | 92 0 | 55 4 | 2.4 | 13.4 2.3 | 1750 | E | 95 | 0.00 | 0.05 | 0.099 0.006 | 337 20 | 60 10 |
| Oakville-NE (Ranch 88) | 9/21/26 | 74.8 2.3 | 1514 | 52.2 3.2 | 2328 | 52.5 1.6 | 88 1 | 47 3 | 2.4 | 16.1 1.9 | 1802 | SSE | 163 | 0.00 | 0.04 | 0.092 0.006 | 282 18 | 90 10 |
| OV561-East | 9/21/26 | 75.1 1.5 | 1608 | 54.1 3.1 | 2332 | - | - | - | - | - | - | - | - | - | - | - | 20 10 |
| Oakville | 9/21/26 | 72.2 0.6 | 1446 | 53.8 3.5 | 2331 | 53.5 1.4 | 91 0 | 53 0 | 3.8 | 18.8 3.7 | 1740 | SE | 131 | 0.00 | 0.03 | 0.100 0.007 | 334 32 | 70 10 |
| OV518-West | 9/21/26 | 71.8 1.4 | 1517 | 54.6 4.2 | 2335 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| To Kalon Remote (TKKE) | 9/21/26 | 74.2 1.5 | 1529 | 54.0 4.9 | 2318 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| To Kalon | 9/21/26 | 72.9 1.4 | 1522 | 54.4 5.5 | 2322 | 54.5 1.6 | 95 1 | 55 0 | 3.4 | 17.4 3.1 | 1807 | SE | 144 | 0.00 | 0.00 | 0.097 0.006 | 322 27 | 70 10 |
| To Kalon Remote (TKN5) | 9/21/26 | 75.4 2.6 | 1512 | 54.8 5.4 | 2315 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| Yountville (Ranch 67) | 9/21/26 | 70.9 1.2 | 1509 | 52.1 1.6 | 2349 | 52.4 0.8 | 91 0 | 54 1 | 3.8 | 16.9 2.9 | 1709 | ESE | 123 | 0.00 | 0.05 | 0.101 0.004 | 384 14 | 70 10 |
| Stags Leap Dist (Silverado Vineyards) | 9/21/26 | 70.7 0.1 | 1507 | 51.7 0.8 | 2353 | 52.6 0.6 | 92 0 | 55 1 | 2.8 | 17.6 2.6 | 1729 | SSE | 150 | 0.00 | 0.07 | 0.089 0.002 | 295 13 | 80 10 |
| Borreo (Soda Canyon) | 9/21/26 | 69.8 0.2 | 1459 | 49.0 0.1 | 0025 | 52.1 0.4 | 95 2 | 56 1 | 1.8 | 11.2 2.0 | 1632 | SSE | 159 | 0.00 | 0.31 | 0.080 0.005 | 289 26 | 90 10 |
| Wappo Hill Floor | 9/21/26 | 72.7 1.8 | 1447 | 52.6 2.1 | 2356 | 53.8 0.8 | 100 0 | 54 2 | 3.1 | 13.7 2.5 | 1538 | ESE | 109 | 0.00 | 0.10 | 0.093 0.005 | 316 22 | 80 10 |
| Stags Leap Dist (Chimney Rock) | 9/21/26 | 70.8 1.1 | 1455 | 51.8 1.5 | 0016 | 55.0 0.8 | 96 0 | 63 0 | 2.7 | 12.3 0.5 | 1716 | S | 190 | 0.00 | 0.10 | 0.080 0.001 | 282 10 | 80 10 |
| Yountville-South (Ranch 87) | 9/21/26 | 74.0 2.1 | 1457 | 51.2 2.3 | 2345 | 54.3 1.1 | 100 0 | 52 2 | 2.0 | 12.4 1.4 | 1641 | S | 173 | 0.00 | 0.09 | 0.090 0.010 | 309 42 | 80 10 |
| Yountville-SE (Ranch 85) | 9/21/26 | 70.4 0.0 | 1506 | 51.0 1.6 | 2357 | 54.4 0.9 | 94 0 | 60 2 | 2.9 | 12.5 0.5 | 1735 | S | 169 | 0.00 | 0.08 | - | 0 0 | 80 10 |
| Oak Knoll-East (Ranch 53) | 9/21/26 | 71.1 0.0 | 1443 | 50.8 1.0 | 0010 | 53.2 0.9 | 92 1 | 55 1 | 2.3 | 11.7 1.6 | 1544 | SE | 132 | 0.00 | 0.15 | 0.090 0.006 | 314 22 | 80 10 |
| Napa-NW (Ranch 54) | 9/21/26 | 72.3 0.7 | 1413 | 50.9 1.9 | 2326 | 53.4 1.2 | 93 2 | 55 3 | 0.6 | 6.8 0.8 | 1147 | SSW | 213 | 0.00 | 0.18 | - | 0 0 | 80 10 |
| Napa-North (Ranch 29) | 9/21/26 | 70.4 0.7 | 1421 | 51.0 1.7 | 0021 | 54.3 0.1 | 100 0 | 59 3 | 2.1 | 12.7 2.6 | 1603 | S | 187 | 0.00 | 0.10 | 0.068 0.015 | 234 73 | 80 10 |
| Max | 81.3 | - | 55.7 | - | 55.7 | 100 | 63 | 3.8 | 18.8 | - | - | 0.00 | 0.31 | 0.108 | 384 | - | |
| Avg | - | - | - | - | 53.7 | - | - | 2.5 | - | - | - | - | - | - | - | - | |
| Min | 69.8 | - | 49.0 | - | 52.1 | 87 | 44 | 0.6 | 6.8 | - | - | 0.00 | 0.00 | 0.016 | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mt. Veeder | 9/21/26 | 71.4 2.8 | 1442 | 49.3 0.8 | 0601 | 52.1 0.6 | 100 5 | 53 3 | 1.3 | 10.0 1.2 | 1344 | SE | 128 | 0.00 | 0.45 | 0.310 0.012 | - | 80 10 |
| Mount George (Napa East) | 9/21/26 | 87.7 7.7 | 0021 | 51.4 0.7 | 0017 | 53.9 0.2 | 100 4 | 60 0 | 1.7 | 11.6 3.1 | 1512 | WNW | 287 | 0.00 | 0.16 | 0.080 0.006 | 296 35 | 80 10 |
| Napa-East (Palmaz 300') | 9/20/26 | 73.1 14.8 | 1634 | 52.1 0.7 | 0239 | 53.4 0.1 | 100 6 | 52 18 | 0.3 | 7.8 2.0 | 1357 | W | 267 | 0.00 | 0.16 | 0.065 0.064 | 229 182 | 80 10 |
| Napa-East (Palmaz 1200') | 9/14/26 | 80.8 4.1 | 1344 | 47.1 4.1 | 0557 | 46.5 1.6 | 92 8 | 29 22 | 2.4 | 12.0 0.9 | 1614 | SW | 226 | - | - | 0.153 0.004 | 498 20 | 20 20 |
| Napa-East (Palmaz 1400') | 9/21/26 | 65.8 2.4 | 1502 | 50.9 0.0 | 0800 | 53.2 0.1 | 100 0 | 68 6 | 3.2 | 12.0 0.9 | 1603 | SSW | 208 | 0.00 | 0.33 | 0.071 0.010 | 298 24 | 80 10 |
| Wooden Valley | 9/21/26 | 70.5 2.6 | 1525 | 52.8 0.3 | 0726 | 52.2 0.6 | 96 4 | 54 6 | 4.9 | 17.2 1.5 | 1057 | W | 261 | 0.00 | 0.04 | 0.116 0.017 | 451 120 | 80 10 |
| Napa-West Upper (Truchard) | 9/21/26 | 71.4 1.0 | 1508 | 51.3 1.6 | 0018 | 23.1 2.2 | 100 0 | 0 0 | 3.5 | 15.4 2.4 | 1649 | SSW | 199 | 0.00 | 0.10 | 0.433 0.193 | - | 70 10 |
| Napa-West Lower (Truchard) | 9/21/26 | 71.1 0.8 | 1502 | 48.5 3.6 | 0024 | 52.6 1.3 | 94 1 | 56 1 | - | - | - | - | - | - | - | - | 70 10 |
| Napa-South (Toyon Farms) | 9/21/26 | 69.7 0.1 | 1452 | 53.0 2.1 | 2351 | 55.0 0.2 | 98 1 | 65 1 | 4.1 | 16.8 2.8 | 1735 | SSW | 194 | 0.00 | 0.07 | 0.051 0.011 | 181 47 | 60 10 |
| Toyon Remote 1 | 9/21/26 | 69.3 0.6 | 1414 | 48.9 1.8 | 0020 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 9/21/26 | 68.8 0.5 | 1530 | 51.0 3.3 | 2300 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 9/21/26 | 69.7 1.1 | 1447 | 49.0 2.0 | 0011 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 9/21/26 | 69.2 1.2 | 1505 | 53.0 5.0 | 0026 | 53.0 0.7 | 94 1 | 59 2 | 2.5 | 16.4 4.8 | 1415 | SE | 138 | 0.00 | 0.08 | 0.088 0.014 | 323 69 | 80 10 |
| Carneros (Saintsbury) | 9/21/26 | 67.4 0.7 | 1349 | 50.9 3.9 | 0007 | 52.3 0.4 | 98 2 | 63 0 | 5.1 | 19.0 4.5 | 1740 | SSW | 195 | 0.00 | 0.08 | - | - | 60 10 |
| Suscol Lower (Ranch 35) | 9/21/26 | 69.5 1.5 | 1535 | 52.4 0.2 | 2220 | 53.0 0.3 | 92 8 | 58 2 | 4.9 | 19.2 5.7 | 1654 | SW | 215 | 0.00 | 0.15 | 0.081 0.014 | 263 50 | 60 10 |
| Suscol Mtn (Ranch 93) | 9/21/26 | 70.4 0.4 | 1503 | 51.4 0.4 | 0824 | 53.4 0.0 | 100 1 | 63 0 | 7.0 | 17.4 4.6 | 1243 | WNW | 303 | 0.00 | 0.33 | - | - | 50 10 |
| Suscol Upper (Ranch 92) | 9/21/26 | 65.9 0.5 | 1527 | 52.0 0.5 | 0831 | -5.0 4.2 | 100 0 | 0 0 | 4.9 | 17.2 5.3 | 1650 | SSE | 160 | 0.00 | 0.15 | - | - | 10 10 |
| Stanly (Ranch 45) | 9/21/26 | 67.8 1.0 | 1449 | 51.7 2.0 | 2245 | 52.5 0.1 | 91 1 | 63 1 | 5.0 | 19.8 4.2 | 1738 | SSW | 205 | 0.00 | 0.15 | 0.090 0.020 | 313 83 | 70 10 |
| Carneros Upper (Ranch 81) | 9/21/26 | 70.4 2.6 | 1447 | 53.7 1.1 | 0719 | 53.0 14.0 | - | - | 6.8 | 20.0 2.8 | 1720 | SSW | 196 | - | - | - | - | 60 10 |
| Carneros (Mitsuko) | 9/21/26 | 69.2 1.5 | 1350 | 51.1 5.2 | 2311 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| Carneros Lower (Ranch 81) | 9/21/26 | 70.4 2.6 | 1424 | 54.0 3.0 | 2316 | 53.6 0.3 | 92 2 | 59 4 | 1.4 | 15.9 3.3 | 1335 | SSE | 151 | 0.00 | 0.01 | 0.016 0.003 | 11 4 | 60 10 |
| Carneros (Milton Rd) | 9/21/26 | 68.7 1.6 | 1507 | 50.2 0.8 | 2217 | 53.1 0.0 | 92 1 | 61 3 | - | - | - | - | 0.00 | 0.00 | - | - | 60 10 |
| Max | 87.7 | - | 54.0 | - | 55.0 | 100 | 68 | 7.0 | 20.0 | - | - | 0.00 | 0.45 | 0.433 | 451 | - | |
| Avg | - | - | - | - | 47.6 | - | - | 4.0 | - | - | - | - | - | - | - | - | |
| Min | 65.8 | - | 48.5 | - | -5.0 | 91 | 0 | 1.3 | 10.0 | - | - | 0.00 | 0.00 | 0.016 | 11 | - |