| 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 | 5/2/26 | 71.3 7.4 | 1210 | 45.6 2.2 | 0015 | - | - | - | - | - | - | - | 0.00 | 49.63 | - | - | 30 10 |
| Pope Valley (Weeks Lake) | 5/2/26 | 72.4 10.1 | 1435 | 45.8 4.6 | 0350 | 49.6 0.5 | 100 0 | 46 17 | 2.4 | 15.8 5.0 | 1428 | SSE | 153 | 0.00 | 25.63 | 0.155 0.019 | 540 3 | 70 10 |
| Dollarhide Base | 5/2/26 | 73.8 9.5 | 1454 | 49.8 1.5 | 0607 | 52.4 2.7 | 96 2 | 53 10 | 4.4 | 16.7 3.4 | 1605 | W | 259 | 0.00 | 22.64 | 0.174 0.028 | 615 6 | 80 10 |
| Dollarhide 1AS Remote | 5/2/26 | 73.7 8.6 | 1551 | 47.8 4.1 | 0445 | 51.6 1.8 | 94 0 | 51 9 | 3.5 | 15.1 2.3 | 1238 | SW | 220 | - | - | - | - | 70 10 |
| Dollarhide 17B Remote | 5/2/26 | 74.3 9.1 | 1443 | 48.0 3.1 | 0436 | 52.4 2.2 | 99 1 | 53 10 | - | - | - | - | - | - | - | - | 70 10 |
| Dollarhide 18A Remote | 5/2/26 | 72.9 8.6 | 1507 | 45.2 4.2 | 0415 | 51.2 1.8 | 99 0 | 55 10 | - | - | - | - | - | - | - | - | 50 10 |
| Angwin | 5/2/26 | 63.2 10.2 | 1456 | 46.5 12.4 | 0530 | 46.2 0.6 | 100 26 | 36 3 | 2.7 | 16.7 5.2 | 1346 | SE | 134 | 0.00 | 44.48 | 0.017 0.017 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 5/2/26 | 65.2 9.4 | 1519 | 45.7 0.5 | 0337 | - | - | - | 3.1 | 12.9 2.3 | 1552 | S | 184 | - | - | - | - | 30 10 |
| Deer Park | 5/2/26 | 69.2 7.2 | 1456 | 50.4 2.6 | 0511 | 50.1 1.9 | 96 1 | 56 6 | 3.5 | 12.6 1.1 | 1621 | SSE | 160 | 0.00 | 28.19 | 0.106 0.015 | 346 31 | 20 10 |
| Lower Chiles Valley (Brown) | 5/2/26 | 69.3 8.7 | 1427 | 49.9 3.0 | 0559 | 50.0 2.4 | 96 4 | 53 7 | 3.1 | 14.4 1.3 | 1305 | WNW | 301 | 0.00 | 25.25 | 0.148 0.010 | 558 7 | 50 10 |
| Moss Creek Vineyard/Reservior | 5/2/26 | 71.2 12.6 | 1507 | 46.9 0.3 | 0430 | 48.9 3.8 | 95 5 | 48 15 | - | - | - | - | 0.00 | 26.50 | - | - | 50 10 |
| Max | 74.3 | - | 50.4 | - | 52.4 | 100 | 56 | 4.4 | 16.7 | - | - | 0.00 | 49.63 | 0.174 | 615 | - | |
| Avg | - | - | - | - | 50.3 | - | - | 3.2 | - | - | - | - | - | - | - | - | |
| Min | 63.2 | - | 45.2 | - | 46.2 | 94 | 36 | 2.4 | 12.6 | - | - | 0.00 | 22.64 | 0.017 | 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 | 4/30/26 | 76.1 7.7 | 1117 | 44.3 0.8 | 0624 | 51.1 2.7 | 99 0 | 44 15 | - | - | - | - | 0.00 | 32.32 | - | - | 30 10 |
| Diamond Mtn (Schramsberg) | 5/2/26 | 68.6 8.5 | 1429 | 49.3 0.4 | 0539 | 50.4 2.3 | 100 0 | 56 6 | - | - | - | - | 0.00 | 30.72 | - | - | 20 10 |
| Diamond Mtn (McEachran) | 5/2/26 | 68.9 8.3 | 1510 | 51.2 3.0 | 0632 | 50.4 2.3 | 96 1 | 57 6 | - | - | - | - | - | - | - | - | 20 10 |
| St. Helena-North | 5/2/26 | 71.1 8.6 | 1423 | 52.8 6.7 | 0602 | 49.0 1.6 | 87 3 | 48 6 | 2.5 | 14.7 1.5 | 1433 | SE | 140 | 0.00 | 30.46 | 0.115 0.028 | 386 49 | 70 10 |
| St. Helena (NVV Office) | 5/2/26 | 71.8 7.1 | 1402 | 53.1 5.7 | 0518 | - | - | - | 1.6 | 11.4 2.4 | 1422 | SE | 137 | 0.00 | 27.95 | - | - | 90 10 |
| Tiara Fria (East St. Helena) | 5/2/26 | 68.8 7.0 | 1523 | 53.3 5.6 | 0055 | 50.2 1.6 | 90 4 | 56 5 | 3.2 | 13.8 2.5 | 1543 | SE | 138 | 0.00 | 25.95 | - | - | 40 10 |
| Rutherford Hill Estate | 5/2/26 | 70.2 5.2 | 1504 | 51.3 2.2 | 0134 | 50.3 1.9 | 94 4 | 54 3 | 1.8 | 16.0 6.1 | 1559 | S | 187 | 0.00 | 24.50 | 0.126 0.003 | 451 2 | 40 10 |
| Rutherford-North (Mee Ln) | 5/2/26 | 68.9 6.3 | 1416 | 50.1 7.5 | 0101 | 50.0 0.7 | 94 2 | 56 4 | 4.1 | 19.3 6.1 | 1514 | SE | 139 | 0.00 | 23.98 | 0.129 0.007 | 441 5 | 50 10 |
| Rutherford (STS) | 5/2/26 | 70.6 5.7 | 1352 | 52.1 7.3 | 2224 | 52.1 0.4 | 90 0 | 60 4 | 3.4 | 16.8 3.9 | 1511 | ESE | 110 | 0.00 | 25.26 | 0.140 0.008 | 510 4 | 80 10 |
| Oakville-NE (Ranch 88) | 5/2/26 | 69.3 5.2 | 1440 | 52.0 7.2 | 0146 | 49.1 1.3 | 91 2 | 53 5 | 3.4 | 19.8 6.4 | 1427 | SSE | 163 | 0.00 | 24.39 | 0.142 0.001 | 491 19 | 0 0 |
| OV561-East | 5/2/26 | 69.2 4.9 | 1550 | 52.1 5.3 | 0139 | - | - | - | - | - | - | - | - | - | - | - | 20 10 |
| Oakville | 5/2/26 | 66.9 5.9 | 1449 | 52.1 6.8 | 0139 | 49.5 1.7 | 91 6 | 58 6 | 4.4 | 19.1 2.8 | 1459 | ESE | 104 | 0.00 | 24.96 | 0.139 0.007 | 510 7 | 20 10 |
| OV518-West | 5/2/26 | 68.1 5.3 | 1426 | 52.2 5.9 | 2347 | - | - | - | - | - | - | - | - | - | - | - | 40 10 |
| To Kalon Remote (TKKE) | 5/2/26 | 70.4 5.1 | 1338 | 52.9 8.5 | 0225 | - | - | - | - | - | - | - | - | - | - | - | 80 10 |
| To Kalon | 5/2/26 | 67.9 4.5 | 1348 | 52.1 7.0 | 0216 | 50.5 1.6 | 94 4 | 59 3 | 4.3 | 16.5 2.2 | 1341 | SE | 139 | 0.00 | 27.15 | 0.127 0.006 | 448 8 | 20 10 |
| To Kalon Remote (TKN5) | 5/2/26 | 71.0 4.0 | 1534 | 52.4 6.9 | 0209 | - | - | - | - | - | - | - | - | - | - | - | 40 10 |
| Yountville (Ranch 67) | 5/2/26 | 66.5 4.7 | 1432 | 51.1 5.8 | 0042 | 48.6 1.8 | 89 6 | 56 3 | 4.4 | 17.5 2.0 | 1356 | ENE | 73 | 0.00 | 23.06 | 0.137 0.010 | 516 27 | 20 10 |
| Stags Leap Dist (Silverado Vineyards) | 5/2/26 | 65.7 4.7 | 1447 | 50.8 5.6 | 0033 | 48.8 1.7 | 88 7 | 58 3 | 3.8 | 18.1 0.1 | 1339 | S | 191 | 0.00 | 27.09 | 0.127 0.009 | 459 14 | 0 10 |
| Borreo (Soda Canyon) | 5/2/26 | 63.5 5.8 | 1659 | 47.0 2.4 | 0027 | 48.6 1.3 | 95 3 | 60 3 | 2.1 | 13.4 4.1 | 1534 | ESE | 113 | 0.00 | 27.02 | 0.103 0.031 | 397 105 | 0 0 |
| Wappo Hill Floor | 5/2/26 | 67.4 4.5 | 1426 | 51.4 8.0 | 0027 | 49.7 1.6 | 90 10 | 56 0 | 3.7 | 14.2 1.3 | 1401 | SSE | 164 | 0.00 | 26.26 | 0.128 0.011 | 454 34 | 50 10 |
| Stags Leap Dist (Chimney Rock) | 5/2/26 | 66.6 4.3 | 1350 | 52.0 8.2 | 0034 | 51.4 1.1 | 92 8 | 63 1 | 3.9 | 15.8 3.9 | 1458 | S | 184 | 0.00 | 25.63 | 0.109 0.011 | 390 36 | 0 0 |
| Yountville-South (Ranch 87) | 5/2/26 | 67.8 4.5 | 1450 | 50.4 5.1 | 0018 | 50.5 1.7 | 95 4 | 57 1 | 3.3 | 15.6 3.8 | 1342 | S | 173 | 0.00 | 26.90 | 0.128 0.006 | 463 15 | 70 10 |
| Yountville-SE (Ranch 85) | 5/2/26 | 66.5 4.7 | 1440 | 52.1 6.7 | 0034 | 50.4 1.6 | 91 9 | 59 2 | 3.0 | 14.8 3.3 | 1357 | SSW | 192 | 0.00 | 25.19 | - | 0 0 | 20 10 |
| Oak Knoll-East (Ranch 53) | 5/2/26 | 66.3 4.7 | 1616 | 51.0 5.8 | 0022 | 49.4 1.5 | 92 3 | 55 0 | 3.1 | 13.2 2.0 | 1503 | SSE | 165 | 0.00 | 23.77 | 0.125 0.007 | 451 18 | 50 10 |
| Napa-NW (Ranch 54) | 5/2/26 | 69.5 3.7 | 1504 | 50.9 4.2 | 0013 | 49.7 1.6 | 92 8 | 50 2 | 1.1 | 9.9 3.5 | 1736 | SW | 234 | 0.00 | 26.23 | - | 0 0 | 80 10 |
| Napa-North (Ranch 29) | 5/2/26 | 65.6 3.8 | 1631 | 51.9 5.8 | 2341 | 50.2 1.9 | 100 0 | 57 3 | 2.5 | 13.8 1.8 | 1422 | S | 180 | 0.00 | 24.67 | 0.085 0.012 | 280 56 | 0 0 |
| Max | 71.8 | - | 53.3 | - | 52.1 | 100 | 63 | 4.4 | 19.8 | - | - | 0.00 | 30.72 | 0.142 | 516 | - | |
| Avg | - | - | - | - | 50.0 | - | - | 3.1 | - | - | - | - | - | - | - | - | |
| Min | 63.5 | - | 47.0 | - | 48.6 | 87 | 48 | 1.1 | 9.9 | - | - | 0.00 | 23.06 | 0.085 | 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 | 5/2/26 | 61.9 9.5 | 1310 | 46.2 3.3 | 0447 | 48.8 3.2 | 100 6 | 67 9 | 2.1 | 15.3 7.5 | 1440 | S | 170 | 0.00 | 33.62 | 0.153 0.027 | 742 1 | 0 0 |
| Mount George (Napa East) | 5/2/26 | 64.9 6.3 | 1700 | 56.2 6.3 | 1954 | 53.3 0.6 | 91 6 | 62 1 | 2.2 | 11.5 1.8 | 1408 | W | 265 | 0.00 | 16.54 | 0.099 0.029 | 363 100 | 0 10 |
| Napa-East (Palmaz 300') | 5/2/26 | 65.0 5.8 | 1649 | 51.8 3.0 | 2228 | 49.8 1.9 | 90 6 | 59 3 | 2.6 | 13.7 3.8 | 1330 | WSW | 255 | 0.00 | 22.81 | 0.087 0.034 | 306 122 | 0 0 |
| Napa-East (Palmaz 1200') | 5/2/26 | 59.0 7.3 | 1730 | 48.3 4.4 | 2309 | 44.0 1.6 | 100 0 | 14 8 | 2.1 | 14.2 3.2 | 1712 | NW | 323 | - | - | 0.070 0.060 | 265 243 | 0 0 |
| Napa-East (Palmaz 1400') | 5/2/26 | 59.1 9.1 | 1354 | 47.1 1.2 | 2208 | 49.1 2.1 | 100 0 | 74 12 | 3.3 | 13.6 1.8 | 1757 | SSW | 198 | 0.00 | 30.26 | 0.065 0.067 | 273 248 | 0 0 |
| Wooden Valley | 5/2/26 | 63.0 10.2 | 1458 | 49.7 1.2 | 0056 | 48.4 2.1 | 91 2 | 62 11 | 5.2 | 16.7 1.8 | 0129 | W | 267 | 0.00 | 28.57 | 0.119 0.042 | 477 115 | 20 10 |
| Napa-West Upper (Truchard) | 5/2/26 | 65.6 3.7 | 1627 | 49.9 2.7 | 2348 | 43.3 27.4 | 100 0 | 0 0 | 4.7 | 18.0 3.1 | 1607 | S | 189 | 0.00 | 23.93 | 0.096 0.037 | 337 129 | 0 0 |
| Napa-West Lower (Truchard) | 5/2/26 | 67.9 2.1 | 1703 | 48.4 6.9 | 0019 | 49.5 0.2 | 94 5 | 52 3 | - | - | - | - | - | - | - | - | 80 10 |
| Napa-South (Toyon Farms) | 5/2/26 | 65.0 3.0 | 1626 | 51.3 4.6 | 2318 | 51.6 1.3 | 98 2 | 65 3 | 3.0 | 14.2 1.5 | 1802 | W | 264 | 0.00 | 17.89 | 0.050 0.020 | 182 79 | 0 0 |
| Toyon Remote 1 | 5/2/26 | 67.8 1.9 | 1656 | 49.2 10.2 | 2335 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 5/2/26 | 66.0 1.4 | 1626 | 51.6 8.0 | 2318 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 5/2/26 | 68.8 0.1 | 1654 | 51.2 7.9 | 2314 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 5/2/26 | 66.2 2.7 | 1639 | 51.6 6.1 | 2318 | 49.4 1.0 | 94 2 | 56 4 | 2.6 | 18.4 5.5 | 1342 | SE | 139 | 0.00 | 23.12 | 0.093 0.035 | 340 134 | 0 0 |
| Carneros (Saintsbury) | 5/2/26 | 65.7 1.5 | 1654 | 50.7 7.4 | 0101 | 49.4 0.8 | 100 0 | 57 5 | 5.0 | 18.2 4.5 | 1811 | W | 268 | 0.00 | 8.68 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 5/2/26 | 64.0 3.4 | 1656 | 51.5 3.7 | 2213 | 49.6 2.1 | - | - | 5.0 | 17.5 5.3 | 1506 | SSW | 211 | 0.00 | 22.41 | 0.084 0.030 | 279 138 | 0 0 |
| Suscol Mtn (Ranch 93) | 5/2/26 | 64.7 4.0 | 1410 | 48.5 0.4 | 2210 | 49.0 2.7 | 99 0 | 67 2 | 7.0 | 18.4 5.3 | 1742 | WNW | 303 | 0.00 | 18.04 | - | - | 0 0 |
| Suscol Upper (Ranch 92) | 5/2/26 | 61.6 4.7 | 1724 | 49.3 0.2 | 2208 | 25.4 6.8 | 100 0 | 3 0 | 4.2 | 16.3 4.7 | 1356 | SW | 236 | 0.00 | 21.98 | - | - | 0 0 |
| Stanly (Ranch 45) | 5/2/26 | 65.4 2.1 | 1724 | 51.8 8.0 | 2244 | 49.5 0.9 | 91 7 | 55 7 | 5.6 | 17.6 3.2 | 1511 | SSW | 206 | 0.00 | 22.49 | 0.100 0.033 | 346 163 | 0 0 |
| Carneros Upper (Ranch 81) | 5/2/26 | 64.2 5.5 | 1648 | 51.4 3.2 | 2254 | 49.0 11.1 | - | - | 6.8 | 25.1 6.9 | 1831 | WSW | 254 | - | - | - | - | 0 0 |
| Carneros (Mitsuko) | 5/2/26 | 66.0 1.6 | 1648 | 51.4 11.4 | 2303 | - | - | - | - | - | - | - | - | - | - | - | 0 0 |
| Carneros Lower (Ranch 81) | 5/2/26 | 68.3 0.7 | 1613 | 51.6 5.9 | 2259 | 50.3 4.6 | 93 7 | 54 54 | 1.0 | 11.2 0.4 | 1324 | SSE | 161 | 0.00 | 19.29 | 0.077 0.037 | 280 139 | 0 0 |
| Carneros (Milton Rd) | 5/2/26 | 65.5 1.5 | 1651 | 51.6 9.0 | 2307 | 50.2 0.1 | 93 2 | 58 7 | - | - | - | - | 0.00 | 18.07 | - | - | 0 0 |
| Max | 68.8 | - | 56.2 | - | 53.3 | 100 | 74 | 7.0 | 25.1 | - | - | 0.00 | 33.62 | 0.153 | 742 | - | |
| Avg | - | - | - | - | 47.8 | - | - | 3.9 | - | - | - | - | - | - | - | - | |
| Min | 59.0 | - | 46.2 | - | 25.4 | 90 | 0 | 1.0 | 11.2 | - | - | 0.00 | 8.68 | 0.050 | 182 | - |