| 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 | 3/1/26 | 61.2 9.9 | 1355 | 41.6 9.5 | 2228 | - | - | - | - | - | - | - | 0.00 | 42.33 | - | - | 0 |
| Pope Valley (Weeks Lake) | 3/1/26 | 68.0 8.8 | 1427 | 41.7 6.5 | 2338 | 48.7 5.3 | 100 0 | 44 3 | 2.0 | 14.5 5.7 | 1500 | WSW | 256 | 0.00 | 21.60 | 0.074 0.005 | 259 8 | 0 0 |
| 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 | 3/1/26 | 67.5 12.2 | 1405 | 49.9 1.5 | 2047 | 52.6 5.2 | 94 6 | 60 11 | 5.0 | 19.9 7.8 | 1515 | WSW | 250 | 0.00 | 19.16 | 0.080 0.010 | 289 6 | 0 |
| Dollarhide 1AS Remote | 3/1/26 | 68.0 10.5 | 1424 | 43.6 4.7 | 2204 | 51.4 3.9 | 95 0 | 57 8 | 3.5 | 14.5 4.0 | 1453 | SSW | 198 | - | - | - | - | 0 |
| Dollarhide 17B Remote | 3/1/26 | 68.8 9.7 | 1418 | 45.7 4.4 | 2144 | 52.1 5.0 | 99 1 | 58 8 | - | - | - | - | - | - | - | - | 0 |
| Dollarhide 18A Remote | 3/1/26 | 68.8 9.0 | 1404 | 41.8 5.0 | 2201 | 51.0 4.2 | 100 0 | 59 9 | - | - | - | - | - | - | - | - | 0 |
| Angwin | 3/1/26 | 57.8 11.6 | 1429 | 45.8 8.6 | 2345 | 48.0 2.2 | 100 13 | 60 11 | 3.0 | 15.4 4.6 | 2035 | NW | 317 | 0.00 | 38.60 | 0.008 0.021 | 0 0 | 0 0 |
| Lower Angwin (Pioneer) | 3/1/26 | 60.3 11.6 | 1442 | 47.8 0.7 | 0001 | - | - | - | 3.2 | 16.3 4.6 | 1213 | WSW | 239 | - | - | - | - | 0 |
| Deer Park | 3/1/26 | 65.4 10.8 | 1333 | 51.3 4.6 | 2144 | 50.9 4.7 | 98 4 | 53 9 | 2.9 | 13.8 0.7 | 1452 | SW | 220 | 0.00 | 23.60 | 0.052 0.028 | 162 55 | 0 |
| Lower Chiles Valley (Brown) | 3/1/26 | 65.4 11.0 | 1434 | 44.9 4.1 | 2011 | 50.1 4.4 | 100 0 | 53 7 | 2.5 | 14.9 3.9 | 1512 | NW | 320 | 0.00 | 20.67 | 0.071 0.018 | 264 10 | 0 0 |
| Moss Creek Vineyard/Reservior | 3/1/26 | 69.4 10.3 | 1415 | 45.4 5.5 | 2221 | 49.9 5.7 | 100 0 | 51 9 | - | - | - | - | 0.00 | 23.37 | - | - | 0 |
| Max | 69.4 | - | 51.3 | - | 52.6 | 100 | 60 | 5.0 | 19.9 | - | - | 0.00 | 42.33 | 0.080 | 289 | - | |
| Avg | - | - | - | - | 50.5 | - | - | 3.1 | - | - | - | - | - | - | - | - | |
| Min | 57.8 | - | 41.6 | - | 48.0 | 94 | 44 | 2.0 | 13.8 | - | - | 0.00 | 19.16 | 0.008 | 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 | 3/1/26 | 69.3 7.4 | 1408 | 50.9 2.5 | 0329 | 52.8 4.7 | 99 0 | 57 8 | - | - | - | - | 0.00 | 27.89 | - | - | 50 10 |
| Fotsch (Maple Lane) | 3/1/26 | 67.4 9.8 | 1400 | 50.2 2.4 | 0355 | 51.0 4.8 | 97 0 | 52 10 | 3.2 | 15.7 0.1 | 1434 | WSW | 247 | 0.00 | 25.78 | - | - | 0 |
| Diamond Mtn (Schramsberg) | 3/1/26 | 65.2 9.3 | 1328 | 48.8 7.7 | 2332 | 50.8 4.0 | 100 10 | 55 8 | - | - | - | - | 0.00 | 26.40 | - | - | 0 |
| Diamond Mtn (McEachran) | 3/1/26 | 65.7 10.1 | 1353 | 50.6 5.9 | 2306 | 51.1 4.6 | 97 6 | 55 11 | - | - | - | - | - | - | - | - | 0 |
| St. Helena-North | 3/1/26 | 68.4 9.7 | 1413 | 51.0 2.2 | 0337 | 50.4 5.2 | 100 0 | 47 6 | 1.6 | 11.8 1.8 | 1334 | N | 3 | 0.00 | 26.65 | 0.059 0.020 | 204 38 | 0 0 |
| St. Helena (NVV Office) | 3/1/26 | 69.5 8.2 | 1408 | 51.4 3.5 | 2256 | - | - | - | 1.3 | 11.2 0.0 | 1609 | W | 264 | 0.00 | 23.51 | - | - | 0 |
| Tiara Fria (East St. Helena) | 3/1/26 | 66.4 9.6 | 1346 | 49.7 4.2 | 2219 | 51.6 5.5 | 98 0 | 52 4 | 2.4 | 14.4 2.9 | 1539 | W | 259 | 0.00 | 21.80 | - | - | 0 |
| Rutherford Hill Estate | 3/1/26 | 69.2 9.6 | 1408 | 51.6 4.8 | 2145 | 51.9 5.4 | 100 9 | 50 2 | 1.5 | 15.8 7.4 | 1551 | WNW | 288 | 0.00 | 21.34 | 0.069 0.006 | 254 4 | 0 0 |
| Rutherford-North (Mee Ln) | 3/1/26 | 69.0 8.6 | 1333 | 46.0 2.3 | 0342 | 48.8 6.8 | 100 0 | 51 1 | 2.3 | 17.1 7.2 | 1354 | WSW | 243 | 0.00 | 20.47 | 0.066 0.013 | 233 21 | 0 0 |
| Rutherford (STS) | 3/1/26 | 68.6 10.7 | 1358 | 48.4 4.2 | 2031 | 50.4 7.1 | 91 0 | 59 5 | 2.2 | 14.7 6.4 | 1420 | W | 268 | 0.00 | 21.64 | 0.079 0.012 | 294 10 | 0 |
| Oakville-NE (Ranch 88) | 3/1/26 | 68.4 10.2 | 1415 | 47.7 4.5 | 2151 | 50.6 5.8 | 99 0 | 48 1 | 1.1 | 15.0 6.8 | 1424 | WSW | 252 | 0.00 | 21.18 | 0.075 0.010 | 274 11 | 0 0 |
| OV561-East | 3/1/26 | 68.5 10.4 | 1412 | 50.0 1.9 | 2132 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| Oakville | 3/1/26 | 67.1 11.1 | 1409 | 49.6 2.5 | 2103 | 51.0 5.6 | 98 0 | 50 1 | 3.0 | 17.5 4.7 | 1417 | W | 260 | 0.00 | 21.73 | 0.081 0.010 | 305 9 | 0 |
| OV518-West | 3/1/26 | 67.2 10.4 | 1408 | 50.0 2.8 | 2139 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| To Kalon Remote (TKKE) | 3/1/26 | 67.9 12.4 | 1343 | 49.2 3.1 | 2044 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| To Kalon | 3/1/26 | 68.3 10.1 | 1358 | 50.0 2.3 | 0330 | 51.8 5.7 | 100 0 | 54 4 | 2.7 | 13.8 3.4 | 1500 | W | 266 | 0.00 | 23.60 | 0.070 0.015 | 260 6 | 0 |
| To Kalon Remote (TKN5) | 3/1/26 | 67.8 11.2 | 1339 | 49.9 1.8 | 0312 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| Yountville (Ranch 67) | 3/1/26 | 67.7 9.6 | 1411 | 49.2 3.9 | 2109 | 50.4 5.7 | 98 0 | 50 3 | 2.1 | 13.5 1.4 | 1502 | W | 259 | 0.00 | 19.96 | 0.079 0.012 | 303 7 | 0 |
| Stags Leap Dist (Silverado Vineyards) | 3/1/26 | 67.8 9.8 | 1521 | 48.9 4.1 | 2112 | 50.2 5.5 | 96 0 | 48 3 | 1.3 | 8.7 4.0 | 0632 | ESE | 106 | 0.00 | 23.90 | 0.070 0.025 | 261 53 | 0 |
| Borreo (Soda Canyon) | 3/1/26 | 66.4 8.7 | 1438 | 45.3 6.8 | 2126 | 49.4 5.5 | 99 2 | 50 4 | 1.6 | 11.8 5.1 | 1511 | NNW | 348 | 0.00 | 23.82 | 0.068 0.020 | 264 45 | 0 |
| Wappo Hill Floor | 3/1/26 | 70.9 9.3 | 1409 | 46.9 5.1 | 2141 | 51.0 6.0 | 100 0 | 52 7 | 2.0 | 13.5 4.1 | 1449 | WNW | 302 | 0.00 | 23.27 | 0.075 0.012 | 278 5 | 0 |
| Stags Leap Dist (Chimney Rock) | 3/1/26 | 67.8 9.7 | 1521 | 48.0 5.8 | 0440 | 52.2 5.5 | 100 0 | 58 8 | 2.2 | 12.6 1.5 | 1455 | NW | 319 | 0.00 | 22.50 | 0.069 0.012 | 252 7 | 0 |
| Yountville-South (Ranch 87) | 3/1/26 | 67.0 11.2 | 1503 | 48.9 4.7 | 2059 | 51.8 5.8 | 100 0 | 53 4 | 1.8 | 11.3 3.9 | 1602 | NNW | 339 | 0.00 | 23.64 | 0.071 0.008 | 257 8 | 0 |
| Yountville-SE (Ranch 85) | 3/1/26 | 68.2 10.6 | 1348 | 48.8 4.5 | 0414 | 51.7 5.4 | 100 0 | 56 8 | 1.9 | 15.6 5.6 | 1600 | N | 354 | 0.00 | 22.18 | - | 0 0 | 0 0 |
| Oak Knoll-East (Ranch 53) | 3/1/26 | 67.9 12.6 | 1342 | 49.7 4.0 | 0307 | 51.1 5.2 | 97 0 | 48 8 | 1.8 | 12.8 4.5 | 1434 | WSW | 238 | 0.00 | 20.44 | 0.070 0.017 | 248 26 | 0 |
| Napa-NW (Ranch 54) | 3/1/26 | 68.9 9.5 | 1358 | 49.9 3.8 | 0327 | 51.7 5.4 | 100 0 | 49 5 | 1.7 | 12.6 3.0 | 1441 | W | 267 | 0.00 | 22.66 | - | 0 0 | 0 0 |
| Napa-North (Ranch 29) | 3/1/26 | 67.2 11.5 | 1644 | 50.6 3.1 | 2203 | 52.5 4.2 | 100 0 | 47 2 | 1.9 | 18.0 8.8 | 1300 | SSE | 148 | 0.00 | 20.32 | 0.063 0.001 | 218 54 | 0 |
| Max | 70.9 | - | 51.6 | - | 52.8 | 100 | 59 | 3.2 | 18.0 | - | - | 0.00 | 27.89 | 0.081 | 305 | - | |
| Avg | - | - | - | - | 51.1 | - | - | 2.0 | - | - | - | - | - | - | - | - | |
| Min | 65.2 | - | 45.3 | - | 48.8 | 91 | 47 | 1.1 | 8.7 | - | - | 0.00 | 19.96 | 0.059 | 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 | 3/1/26 | 61.0 12.2 | 1258 | 48.6 7.1 | 2056 | 49.0 3.4 | 100 19 | 60 11 | 1.1 | 8.9 1.7 | 1533 | NNE | 20 | 0.00 | 29.22 | 0.053 0.024 | 234 24 | 0 0 |
| Mount George (Napa East) | 3/1/26 | 69.9 8.9 | 1657 | 49.8 2.0 | 0305 | 52.8 3.1 | 97 1 | 52 3 | 1.7 | 10.9 2.0 | 1352 | WNW | 284 | 0.00 | 11.88 | 0.078 0.013 | 293 20 | 0 |
| Napa-East (Palmaz 300') | 3/1/26 | 67.3 11.0 | 1405 | 51.2 3.4 | 2053 | 51.7 4.8 | 100 0 | 49 3 | 2.1 | 12.7 5.5 | 1457 | WSW | 249 | 0.00 | 18.31 | 0.069 0.015 | 253 22 | 0 |
| Napa-East (Palmaz 1200') | 3/1/26 | 61.6 11.8 | 1405 | 45.4 6.5 | 2054 | 41.3 12.7 | 100 0 | 5 0 | 1.9 | 12.7 2.0 | 1616 | W | 271 | - | - | 0.062 0.026 | 226 72 | 0 |
| Napa-East (Palmaz 1400') | 3/1/26 | 62.0 12.6 | 1405 | 47.3 6.6 | 2013 | 50.5 4.6 | 100 0 | 63 9 | 2.3 | 17.5 5.0 | 1441 | SW | 229 | 0.00 | 24.79 | 0.057 0.034 | 238 77 | 0 |
| Wooden Valley | 4/30/25 | 78.8 0.4 | 1303 | 51.0 7.3 | 0600 | 49.9 1.6 | 90 5 | 34 2 | 4.0 | 16.6 0.3 | 0031 | SW | 220 | 0.00 | 30.39 | 0.212 0.008 | 668 2 | 0 0 |
| Napa-West Upper (Truchard) | 3/1/26 | 67.1 12.5 | 1416 | 49.3 5.0 | 0433 | 6.9 50.8 | 100 0 | 0 0 | 3.6 | 14.9 2.6 | 1406 | SW | 229 | 0.00 | 20.15 | 0.091 0.004 | 288 17 | 0 0 |
| Napa-West Lower (Truchard) | 3/1/26 | 68.9 11.3 | 1340 | 45.4 4.0 | 0246 | 50.6 5.4 | 100 0 | 46 1 | - | - | - | - | - | - | - | - | 0 0 |
| Napa-South (Toyon Farms) | 3/1/26 | 66.1 12.0 | 1345 | 51.3 3.9 | 0450 | 54.0 5.1 | 100 0 | 66 11 | 3.3 | 12.8 1.3 | 1502 | WSW | 249 | 0.00 | 13.94 | 0.043 0.003 | 167 29 | 0 0 |
| Toyon Remote 1 | 3/1/26 | 70.0 8.9 | 1430 | 47.1 3.6 | 0250 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 3/1/26 | 66.3 11.8 | 1324 | 49.1 3.4 | 0251 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 3/1/26 | 69.9 9.8 | 1634 | 47.4 3.3 | 0250 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 3/1/26 | 67.2 10.4 | 1339 | 49.8 3.6 | 0249 | 51.8 4.8 | 97 1 | 58 10 | 2.4 | 13.2 1.5 | 1419 | WNW | 286 | 0.00 | 19.35 | 0.076 0.018 | 289 26 | 0 |
| Carneros (Saintsbury) | 3/1/26 | 65.8 11.6 | 1422 | 49.2 2.8 | 0455 | 51.8 4.6 | 100 0 | 61 12 | 4.7 | 18.2 1.1 | 2049 | WSW | 246 | 0.00 | 5.62 | - | - | 0 0 |
| Suscol Lower (Ranch 35) | 3/1/26 | 66.2 11.5 | 1416 | 50.1 3.9 | 0426 | 41.0 15.2 | - | - | 4.0 | 15.3 5.4 | 1451 | WNW | 289 | 0.00 | 18.31 | 0.078 0.019 | 278 25 | 0 |
| Suscol Mtn (Ranch 93) | 3/1/26 | 62.8 11.2 | 1428 | 49.8 3.2 | 2116 | 51.5 3.3 | 100 2 | 65 14 | 7.7 | 23.4 0.1 | 1431 | WNW | 301 | 0.00 | 13.80 | - | - | 0 |
| Suscol Upper (Ranch 92) | 3/1/26 | 63.0 13.7 | 1427 | 50.8 2.8 | 2059 | 40.0 14.5 | 100 0 | 3 0 | 4.3 | 17.5 4.1 | 1448 | SSW | 212 | 0.00 | 18.16 | - | - | 0 0 |
| Stanly (Ranch 45) | 3/1/26 | 66.2 11.8 | 1418 | 49.2 3.2 | 0359 | 51.2 4.9 | 96 3 | 59 12 | 4.6 | 15.6 1.9 | 2032 | W | 265 | 0.00 | 19.65 | 0.086 0.019 | 327 13 | 0 0 |
| Carneros Upper (Ranch 81) | 3/1/26 | 64.9 11.2 | 1309 | 52.1 3.1 | 0438 | 23.0 33.2 | - | - | 9.1 | 22.5 1.8 | 1435 | W | 261 | - | - | - | - | 0 0 |
| Carneros (Mitsuko) | 3/1/26 | 66.0 10.3 | 1415 | 50.5 1.9 | 0441 | - | - | - | - | - | - | - | - | - | - | - | 0 |
| Carneros Lower (Ranch 81) | 3/1/26 | 67.3 13.7 | 1339 | 50.8 4.5 | 0257 | 29.4 27.7 | 100 6 | 0 44 | 0.6 | 11.8 0.8 | 1501 | NW | 304 | 0.00 | 16.94 | 0.056 0.019 | 196 60 | 0 0 |
| Carneros (Milton Rd) | 3/1/26 | 66.0 12.3 | 1444 | 51.7 1.4 | 0403 | 52.4 4.1 | 94 1 | 62 14 | - | - | - | - | 0.00 | 5.75 | - | - | 0 |
| Max | 70.0 | - | 52.1 | - | 54.0 | 100 | 66 | 9.1 | 23.4 | - | - | 0.00 | 29.22 | 0.091 | 327 | - | |
| Avg | - | - | - | - | 44.1 | - | - | 3.6 | - | - | - | - | - | - | - | - | |
| Min | 61.0 | - | 45.4 | - | 6.9 | 94 | 0 | 0.6 | 8.9 | - | - | 0.00 | 5.62 | 0.043 | 167 | - |