| 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 | 4/1/26 | 55.5 6.1 | 1433 | 44.2 1.7 | 0059 | - | - | - | - | - | - | - | 0.53 | 43.59 | - | - | 70 10 |
| Pope Valley (Weeks Lake) | 4/1/26 | 60.2 7.3 | 1429 | 50.2 1.8 | 0058 | 48.6 0.7 | 100 0 | 60 11 | 4.1 | 19.5 6.1 | 1732 | SW | 218 | 0.25 | 22.17 | 0.062 0.013 | 194 62 | 80 10 |
| Whiskey River Winery | 12/13/25 | 52.8 3.6 | 1548 | 37.3 0.3 | 0759 | 36.3 2.0 | 88 11 | 68 4 | 0.0 | 0.0 2.4 | 0001 | SE | 128 | 0.00 | 7.07 | - | - | - |
| Dollarhide Base | 4/1/26 | 60.6 11.0 | 1339 | 51.5 0.4 | 0059 | 50.6 0.6 | 98 2 | 65 19 | 8.6 | 26.5 5.6 | 1712 | SW | 221 | 0.11 | 19.65 | 0.071 0.010 | 227 70 | 80 10 |
| Dollarhide 1AS Remote | 4/1/26 | 62.2 33.5 | 1449 | 50.8 14.2 | 0059 | 50.2 1.8 | 94 1 | 65 52 | 5.5 | 21.9 4.2 | 1638 | SSW | 205 | - | - | - | - | 80 10 |
| Dollarhide 17B Remote | 4/1/26 | 60.8 8.4 | 1333 | 50.6 0.0 | 0433 | 50.8 0.7 | 100 2 | 68 14 | - | - | - | - | - | - | - | - | 80 10 |
| Dollarhide 18A Remote | 4/1/26 | 59.4 9.3 | 1450 | 50.2 0.5 | 0411 | 50.1 0.7 | 100 2 | 66 22 | - | - | - | - | - | - | - | - | 80 10 |
| Angwin | 4/1/26 | 48.1 13.1 | 1508 | 42.1 2.9 | 0059 | 46.0 0.1 | 100 0 | 86 55 | 6.5 | 25.1 7.2 | 2227 | SE | 143 | 0.42 | 39.78 | 0.002 0.010 | 0 0 | 70 10 |
| Lower Angwin (Pioneer) | 4/1/26 | 52.1 11.0 | 1512 | 44.5 3.1 | 0058 | - | - | - | 5.1 | 18.8 2.6 | 1514 | SSW | 205 | - | - | - | - | 80 10 |
| Deer Park | 4/1/26 | 57.2 8.3 | 1440 | 49.6 0.9 | 0057 | 49.1 1.8 | 97 0 | 66 6 | 3.5 | 16.6 1.5 | 1809 | SSW | 212 | 0.21 | 24.32 | 0.034 0.003 | 86 8 | 80 10 |
| Lower Chiles Valley (Brown) | 4/1/26 | 56.3 10.1 | 1538 | 49.2 1.4 | 0059 | 48.6 1.4 | 96 1 | 69 13 | 3.8 | 16.4 4.3 | 1612 | NW | 309 | 0.13 | 21.35 | 0.040 0.009 | 108 36 | 80 10 |
| Moss Creek Vineyard/Reservior | 4/1/26 | 59.0 9.9 | 1549 | 50.2 3.7 | 0032 | 49.8 0.9 | 95 2 | 72 18 | - | - | - | - | 0.39 | 23.90 | - | - | 40 10 |
| Max | 62.2 | - | 51.5 | - | 50.8 | 100 | 86 | 8.6 | 26.5 | - | - | 0.53 | 43.59 | 0.071 | 227 | - | |
| Avg | - | - | - | - | 49.3 | - | - | 5.3 | - | - | - | - | - | - | - | - | |
| Min | 48.1 | - | 42.1 | - | 46.0 | 94 | 60 | 3.5 | 16.4 | - | - | 0.11 | 19.65 | 0.002 | 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 | 4/1/26 | 60.8 9.7 | 1439 | 50.3 0.1 | 0058 | 51.7 1.3 | 100 0 | 67 9 | - | - | - | - | 0.16 | 28.45 | - | - | 30 10 |
| Fotsch (Maple Lane) | 3/9/26 | 75.9 3.7 | 1625 | 41.4 5.5 | 0743 | 44.5 1.8 | 97 3 | 26 3 | 3.3 | 15.6 1.3 | 1413 | WSW | 249 | 0.00 | 26.01 | - | - | 0 0 |
| Diamond Mtn (Schramsberg) | 4/1/26 | 59.6 4.7 | 1447 | 47.4 1.7 | 0059 | 49.8 1.4 | 100 0 | 62 1 | - | - | - | - | 0.26 | 27.04 | - | - | 80 10 |
| Diamond Mtn (McEachran) | 4/1/26 | 59.2 8.2 | 1427 | 50.1 0.1 | 0054 | 50.0 1.5 | 99 1 | 61 3 | - | - | - | - | - | - | - | - | 70 10 |
| St. Helena-North | 4/1/26 | 62.8 4.9 | 1445 | 50.8 0.3 | 0059 | 50.1 0.8 | 100 2 | 52 0 | 2.0 | 14.5 0.7 | 1252 | NW | 313 | 0.25 | 27.35 | 0.060 0.016 | 197 85 | 70 10 |
| St. Helena (NVV Office) | 4/1/26 | 62.6 6.0 | 1233 | 52.2 0.1 | 0558 | - | - | - | 1.2 | 11.8 0.9 | 1354 | WSW | 256 | 0.19 | 24.05 | - | - | 70 10 |
| Tiara Fria (East St. Helena) | 4/1/26 | 60.2 7.1 | 1438 | 52.0 0.9 | 0556 | 50.2 1.5 | 96 3 | 55 2 | 3.3 | 16.2 0.4 | 1334 | SW | 216 | 0.18 | 22.33 | - | - | 70 10 |
| Rutherford Hill Estate | 4/1/26 | 58.2 9.6 | 1506 | 49.8 1.7 | 0059 | 50.8 1.1 | 100 0 | 68 12 | 2.3 | 14.9 0.7 | 2331 | W | 274 | 0.13 | 21.81 | 0.033 0.010 | 98 35 | 80 10 |
| Rutherford-North (Mee Ln) | 4/1/26 | 62.4 6.9 | 1447 | 47.7 3.0 | 0540 | 48.8 2.7 | 96 2 | 58 3 | 3.3 | 16.7 0.7 | 1852 | SSW | 192 | 0.16 | 20.92 | 0.055 0.006 | 165 28 | 80 10 |
| Rutherford (STS) | 4/1/26 | 65.3 5.2 | 1441 | 51.4 0.9 | 0547 | 50.4 2.7 | 90 1 | 59 0 | 2.8 | 21.5 8.8 | 1322 | W | 275 | 0.20 | 22.08 | 0.069 0.017 | 238 79 | 70 10 |
| Oakville-NE (Ranch 88) | 4/1/26 | 60.9 8.2 | 1525 | 52.2 0.6 | 0059 | 50.1 1.0 | 99 8 | 60 9 | 2.1 | 17.2 0.9 | 1353 | NW | 315 | 0.11 | 21.48 | 0.049 0.009 | 144 23 | 0 0 |
| OV561-East | 4/1/26 | 60.8 8.1 | 1520 | 52.1 0.9 | 0537 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| Oakville | 4/1/26 | 60.5 7.2 | 1446 | 52.1 0.8 | 0528 | 50.4 1.6 | 97 3 | 62 6 | 3.9 | 16.7 0.4 | 1344 | SW | 232 | 0.09 | 21.92 | 0.052 0.005 | 147 20 | 60 10 |
| OV518-West | 4/1/26 | 60.3 8.8 | 1445 | 52.1 1.1 | 0507 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| To Kalon Remote (TKKE) | 4/1/26 | 64.2 4.9 | 1453 | 51.8 1.2 | 0520 | - | - | - | - | - | - | - | - | - | - | - | 70 10 |
| To Kalon | 4/1/26 | 61.1 6.4 | 1507 | 51.8 0.9 | 0509 | 51.1 1.7 | 98 2 | 63 7 | 3.1 | 15.1 1.0 | 2348 | NNW | 328 | 0.12 | 23.88 | 0.050 0.001 | 149 3 | 80 10 |
| To Kalon Remote (TKN5) | 4/1/26 | 61.2 10.2 | 1504 | 52.4 0.9 | 0101 | - | - | - | - | - | - | - | - | - | - | - | 70 10 |
| Yountville (Ranch 67) | 4/1/26 | 60.8 5.0 | 1502 | 51.5 1.0 | 0537 | 50.4 1.5 | 97 2 | 60 4 | 3.5 | 14.2 0.2 | 1524 | S | 185 | 0.12 | 20.19 | 0.060 0.002 | 204 11 | 60 10 |
| Stags Leap Dist (Silverado Vineyards) | 4/1/26 | 60.3 5.0 | 1614 | 50.9 1.1 | 0059 | 50.2 1.5 | 96 3 | 63 4 | 2.9 | 14.7 1.1 | 2002 | ESE | 120 | 0.13 | 24.15 | 0.051 0.001 | 155 3 | 70 10 |
| Borreo (Soda Canyon) | 4/1/26 | 57.8 6.2 | 1457 | 50.0 2.9 | 0059 | 50.3 1.4 | 98 1 | 68 5 | 2.2 | 13.8 1.0 | 1437 | SSE | 150 | 0.13 | 24.10 | 0.040 0.004 | 128 19 | 70 10 |
| Wappo Hill Floor | 4/1/26 | 61.1 6.5 | 1527 | 50.1 1.4 | 0547 | 51.3 1.9 | 100 0 | 65 7 | 3.4 | 13.5 1.0 | 1436 | S | 189 | 0.13 | 23.49 | 0.052 0.005 | 155 17 | 60 10 |
| Stags Leap Dist (Chimney Rock) | 4/1/26 | 60.8 5.5 | 1536 | 52.4 1.5 | 0056 | 52.7 1.4 | 100 3 | 69 4 | 3.7 | 16.7 2.3 | 1412 | SSW | 198 | 0.15 | 22.77 | 0.050 0.005 | 151 21 | 60 10 |
| Yountville-South (Ranch 87) | 4/1/26 | 60.6 6.7 | 1558 | 51.7 1.6 | 0528 | 52.1 1.6 | 100 0 | 66 6 | 3.6 | 16.0 2.1 | 1621 | SW | 222 | 0.16 | 23.91 | 0.050 0.005 | 152 21 | 40 10 |
| Yountville-SE (Ranch 85) | 4/1/26 | 61.5 4.3 | 1540 | 51.4 2.4 | 0612 | 52.1 1.7 | 100 4 | 66 4 | 1.7 | 13.0 2.3 | 0036 | NW | 325 | 0.15 | 22.44 | - | 0 0 | 60 10 |
| Oak Knoll-East (Ranch 53) | 4/1/26 | 61.5 4.7 | 1542 | 52.3 1.8 | 0554 | 51.2 1.9 | 95 2 | 64 7 | 3.0 | 14.2 0.1 | 1615 | W | 260 | 0.22 | 20.76 | 0.049 0.000 | 141 4 | 40 10 |
| Napa-NW (Ranch 54) | 4/1/26 | 62.6 3.5 | 1537 | 51.4 2.7 | 0553 | 51.8 1.3 | 100 5 | 63 6 | 2.3 | 11.5 0.8 | 1540 | W | 277 | 0.25 | 23.03 | - | 0 0 | 60 10 |
| Napa-North (Ranch 29) | 4/1/26 | 61.5 3.9 | 1557 | 52.7 2.0 | 0049 | 53.2 1.8 | 100 0 | 66 3 | 3.8 | 16.7 2.1 | 1559 | SW | 220 | 0.20 | 20.62 | 0.038 0.004 | 102 19 | 60 10 |
| Max | 65.3 | - | 52.7 | - | 53.2 | 100 | 69 | 3.9 | 21.5 | - | - | 0.26 | 28.45 | 0.069 | 238 | - | |
| Avg | - | - | - | - | 50.9 | - | - | 2.9 | - | - | - | - | - | - | - | - | |
| Min | 57.8 | - | 47.4 | - | 48.8 | 90 | 52 | 1.2 | 11.5 | - | - | 0.09 | 20.19 | 0.033 | 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 | 4/1/26 | 56.4 4.2 | 1421 | 45.6 5.4 | 0059 | 48.9 1.0 | 100 0 | 75 25 | 3.0 | 12.8 1.2 | 0947 | SE | 143 | 0.38 | 29.86 | 0.142 0.020 | 884 182 | 80 10 |
| Mount George (Napa East) | 4/1/26 | 59.9 7.1 | 1516 | 53.2 1.9 | 0101 | 53.3 1.0 | 97 1 | 71 6 | 1.6 | 13.3 1.6 | 1317 | W | 274 | 0.32 | 12.38 | 0.041 0.009 | 138 23 | 60 10 |
| Napa-East (Palmaz 300') | 4/1/26 | 59.5 7.8 | 1512 | 52.5 2.4 | 0043 | 52.6 1.2 | 100 0 | 71 10 | 2.1 | 13.5 2.6 | 2140 | SSW | 209 | 0.32 | 18.81 | 0.033 0.012 | 102 33 | 60 10 |
| Napa-East (Palmaz 1200') | 4/1/26 | 53.1 8.7 | 1020 | 48.8 3.3 | 0057 | 37.0 6.4 | 100 0 | 40 36 | 2.6 | 15.0 0.8 | 1302 | NW | 305 | - | - | 0.037 0.012 | 48 79 | 70 10 |
| Napa-East (Palmaz 1400') | 4/1/26 | 52.4 11.2 | 0245 | 47.5 4.1 | 0058 | 50.7 1.2 | 100 0 | 99 33 | 3.7 | 16.8 1.9 | 1057 | WSW | 252 | 0.51 | 25.59 | 0.011 0.028 | 53 95 | 70 10 |
| Wooden Valley | 4/1/26 | 56.4 8.0 | 1027 | 50.5 2.5 | 0055 | 49.8 1.5 | 93 2 | 74 13 | 3.7 | 17.2 4.7 | 0956 | SW | 228 | 0.35 | 24.50 | 0.037 0.026 | 113 96 | 70 10 |
| Napa-West Upper (Truchard) | 4/1/26 | 59.6 7.2 | 1540 | 50.6 2.2 | 0055 | -12.9 26.9 | 100 0 | 0 0 | 4.4 | 16.3 4.6 | 1004 | SSW | 196 | 0.24 | 20.48 | 0.061 0.004 | 111 41 | 60 10 |
| Napa-West Lower (Truchard) | 4/1/26 | 61.0 8.6 | 1540 | 48.4 4.6 | 0436 | 51.3 2.1 | 100 5 | 69 9 | - | - | - | - | - | - | - | - | 60 10 |
| Napa-South (Toyon Farms) | 4/1/26 | 60.1 5.1 | 1539 | 52.4 1.8 | 0052 | 53.7 1.9 | 100 0 | 77 6 | 3.6 | 13.5 2.5 | 1052 | S | 174 | 0.23 | 14.26 | 0.017 0.005 | 67 10 | 60 10 |
| Toyon Remote 1 | 4/1/26 | 61.4 6.5 | 1543 | 49.6 3.7 | 0547 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 4/1/26 | 60.7 7.0 | 1537 | 51.5 2.8 | 0544 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 4/1/26 | 62.2 5.1 | 1535 | 50.8 3.1 | 0541 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 4/1/26 | 61.3 4.8 | 1537 | 51.0 3.0 | 0440 | 51.7 1.7 | 97 3 | 67 5 | 2.1 | 14.2 0.8 | 2102 | WSW | 247 | 0.26 | 19.67 | 0.048 0.000 | 161 6 | 60 10 |
| Carneros (Saintsbury) | 4/1/26 | 60.7 4.3 | 1431 | 49.2 2.1 | 0549 | 51.1 2.2 | 100 0 | 70 4 | 3.8 | 15.5 1.5 | 1108 | SW | 225 | 0.26 | 5.96 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 4/1/26 | 60.8 5.0 | 1556 | 52.5 2.0 | 0042 | 52.9 1.2 | - | - | 4.7 | 17.8 2.4 | 2105 | S | 191 | 0.20 | 18.65 | 0.037 0.010 | 102 31 | 60 10 |
| Suscol Mtn (Ranch 93) | 4/1/26 | 56.3 7.1 | 1544 | 49.5 4.0 | 0057 | 51.4 1.0 | 100 1 | 81 14 | 9.1 | 26.6 1.5 | 2323 | NW | 316 | 0.32 | 14.30 | - | - | 60 10 |
| Suscol Upper (Ranch 92) | 4/1/26 | 57.1 6.4 | 1542 | 50.2 3.7 | 0101 | 28.1 10.4 | 100 0 | 3 0 | 5.5 | 24.0 1.5 | 2143 | SW | 227 | 0.24 | 18.55 | - | - | 70 10 |
| Stanly (Ranch 45) | 4/1/26 | 60.2 8.5 | 1636 | 50.4 1.7 | 0058 | 51.0 2.0 | 96 1 | 69 11 | 5.4 | 20.6 1.2 | 2106 | SW | 214 | 0.21 | 20.03 | 0.041 0.010 | 110 33 | 60 10 |
| Carneros Upper (Ranch 81) | 4/1/26 | 59.8 5.1 | 1533 | 51.8 2.9 | 0053 | 40.4 12.6 | - | - | 7.5 | 24.0 3.2 | 1346 | W | 262 | - | - | - | - | 60 10 |
| Carneros (Mitsuko) | 4/1/26 | 61.6 4.1 | 1428 | 48.1 4.9 | 0437 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 4/1/26 | 62.9 3.1 | 1457 | 50.2 3.9 | 0442 | 25.2 29.0 | 100 5 | 0 65 | 0.7 | 9.8 4.5 | 1045 | SSE | 155 | 0.00 | 16.94 | 0.042 0.004 | 131 13 | 0 0 |
| Carneros (Milton Rd) | 4/1/26 | 62.0 3.6 | 1431 | 51.8 2.8 | 0523 | 52.3 1.7 | 94 1 | 68 4 | - | - | - | - | 0.12 | 17.12 | - | - | 20 10 |
| Max | 62.9 | - | 53.2 | - | 53.7 | 100 | 99 | 9.1 | 26.6 | - | - | 0.51 | 29.86 | 0.142 | 884 | - | |
| Avg | - | - | - | - | 43.8 | - | - | 4.0 | - | - | - | - | - | - | - | - | |
| Min | 52.4 | - | 45.6 | - | -12.9 | 93 | 0 | 0.7 | 9.8 | - | - | 0.00 | 5.96 | 0.011 | 48 | - |