| 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 | 8/28/26 | 81.3 11.8 | 1545 | 50.5 6.5 | 2257 | - | - | - | - | - | - | - | 0.00 | 0.00 | - | - | 30 20 |
| Pope Valley (Weeks Lake) | 8/28/26 | 84.8 12.7 | 1233 | 46.4 2.3 | 0054 | 46.5 0.1 | 93 3 | 10 2 | 1.3 0.7 | 14.7 1.1 | 1320 | WSW | 252 | 0.00 | 0.00 | 0.093 0.103 | 230 275 | 20 20 |
| Dollarhide Base | 8/28/26 | 86.1 15.7 | 1234 | 59.6 2.6 | 0001 | 50.2 0.6 | 79 1 | 22 6 | 2.2 1.1 | 11.8 6.4 | 0930 | S | 189 | 0.00 | 0.00 | 0.105 0.128 | 233 306 | 20 20 |
| Dollarhide 1AS Remote | 8/28/26 | 87.2 15.7 | 1230 | 50.9 0.9 | 0059 | 48.6 0.3 | 89 3 | 20 4 | 2.1 0.5 | 13.4 3.1 | 1245 | SE | 136 | - | - | - | - | 20 20 |
| Dollarhide 16A Remote | 8/28/26 | 83.9 17.6 | 1226 | 54.2 0.4 | 0059 | 50.1 1.0 | 88 3 | 24 9 | - | - | - | - | - | - | - | - | 20 20 |
| Dollarhide 18A Remote | 8/28/26 | 90.7 10.2 | 1219 | 46.4 1.6 | 0043 | 48.9 0.2 | 91 3 | 21 5 | - | - | - | - | - | - | - | - | 20 20 |
| Hardin Rd (Eakle) | 8/28/26 | 83.5 15.3 | 1217 | 55.3 2.7 | 0003 | - | - | - | - | - | - | - | - | - | - | - | 20 20 |
| Angwin | 8/28/26 | 75.2 15.8 | 1203 | 61.9 5.0 | 0948 | 35.1 5.2 | 61 22 | 6 8 | 2.2 1.0 | 13.4 0.3 | 1249 | SSE | 157 | 0.00 | 0.00 | 0.050 0.027 | 0 0 | 100 0 |
| Lower Angwin (Pioneer) | 8/28/26 | 75.0 16.5 | 1224 | 41.3 8.1 | 0008 | - | - | - | 1.6 0.1 | 11.4 1.4 | 1222 | SW | 223 | - | - | - | - | 70 10 |
| Las Posadas (Cal Fire) | 8/28/26 | 75.8 18.6 | 1226 | 56.5 2.3 | 0052 | 51.0 3.4 | 89 24 | 35 16 | 7.3 0.7 | 22.9 0.5 | 0912 | SSW | 198 | 0.00 | 0.00 | 0.112 0.138 | 198 278 | - |
| Deer Park | 8/28/26 | 76.1 23.0 | 1223 | 57.8 1.4 | 0024 | 52.3 1.5 | 88 9 | 38 23 | 2.5 0.9 | 10.7 7.0 | 0914 | SE | 135 | 0.00 | 0.00 | 0.075 0.115 | 161 237 | 20 20 |
| Lower Chiles Valley (Brown) | 8/28/26 | 75.9 20.0 | 1558 | 55.8 6.3 | 0041 | 51.3 4.2 | 90 0 | 34 17 | 3.0 0.5 | 10.6 2.9 | 1603 | WNW | 302 | 0.00 | 0.00 | 0.086 0.123 | 188 348 | 20 20 |
| Moss Creek Vineyard/Reservior | 8/28/26 | 87.0 14.0 | 1438 | 55.9 0.0 | 0101 | 42.8 5.5 | 86 6 | 8 2 | - | - | - | - | 0.00 | 0.00 | - | - | 20 20 |
| Max | 90.7 | - | 61.9 | - | 52.3 | 93 | 38 | 7.3 | 22.9 | - | - | 0.00 | 0.00 | 0.112 | 233 | - | |
| Avg | - | - | - | - | 47.7 | - | - | 2.8 | - | - | - | - | - | - | - | - | |
| Min | 75.0 | - | 41.3 | - | 35.1 | 61 | 6 | 1.3 | 10.6 | - | - | 0.00 | 0.00 | 0.050 | 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 | 8/28/26 | 82.8 15.9 | 1205 | 52.1 2.1 | 0044 | 53.5 0.1 | 94 5 | 35 12 | - | - | - | - | 0.00 | 0.00 | - | - | 20 20 |
| Diamond Mtn (Schramsberg) | 8/28/26 | 74.6 22.5 | 1232 | 58.7 2.3 | 0050 | 50.5 1.6 | 85 13 | 41 26 | - | - | - | - | 0.00 | 0.00 | - | - | 20 20 |
| Diamond Mtn (McEachran) | 8/28/26 | 77.3 18.5 | 1224 | 57.0 2.2 | 0059 | 51.2 2.0 | 80 3 | 42 26 | - | - | - | - | - | - | - | - | 20 20 |
| St. Helena-North | 8/28/26 | 75.6 24.7 | 1223 | 53.9 1.8 | 0057 | 50.7 2.3 | 83 4 | 42 35 | 2.5 | 11.2 5.5 | 1255 | ESE | 122 | 0.00 | 0.00 | 0.095 0.090 | 220 262 | 20 20 |
| St. Helena (NVV Office) | 8/28/26 | 76.3 24.5 | 1815 | 54.8 1.0 | 0059 | - | - | - | 1.1 | 7.5 2.9 | 1239 | E | 86 | 0.00 | 0.00 | - | - | 20 20 |
| Tiara Fria (East St. Helena) | 8/28/26 | 73.5 24.6 | 1647 | 51.6 1.8 | 0059 | 53.3 0.2 | 88 1 | 49 33 | 1.4 | 7.8 5.3 | 0950 | S | 181 | 0.00 | 0.00 | - | - | 20 20 |
| Prisoner Winery | 8/28/26 | 77.3 23.3 | 1820 | 51.3 1.4 | 0059 | 53.9 0.5 | 96 5 | 46 31 | 0.8 | 5.2 5.6 | 1240 | SSE | 153 | 0.00 | 0.00 | 0.012 0.026 | 0 0 | 20 20 |
| Rutherford Hill Estate | 8/28/26 | 75.0 21.7 | 1835 | 57.8 0.5 | 0059 | 53.5 1.2 | 90 1 | 49 25 | 0.9 | 8.6 8.8 | 0957 | SSW | 210 | 0.00 | 0.00 | 0.062 0.108 | 181 270 | 20 20 |
| Rutherford-North (Mee Ln) | 8/28/26 | 73.3 23.3 | 1601 | 48.8 2.6 | 0053 | 53.3 0.1 | 91 1 | 49 33 | 1.9 | 9.6 9.4 | 1248 | ESE | 108 | 0.00 | 0.00 | 0.071 0.124 | 172 290 | 20 20 |
| Rutherford (STS) | 8/28/26 | 75.0 23.1 | 1604 | 49.2 1.6 | 0059 | 55.8 0.9 | 92 0 | 55 33 | 1.3 | 9.4 4.5 | 0925 | SSE | 163 | 0.00 | 0.00 | 0.070 0.129 | 200 338 | 20 20 |
| Oakville-NE (Ranch 88) | 8/28/26 | 74.5 21.4 | 1832 | 49.3 1.0 | 0057 | 51.9 0.0 | 85 3 | 46 22 | 1.3 | 11.3 7.3 | 0930 | S | 178 | 0.00 | 0.00 | 0.067 0.120 | 170 295 | 100 20 |
| OV561-East | 8/28/26 | 76.4 20.2 | 1831 | 51.7 1.1 | 0058 | - | - | - | - | - | - | - | - | - | - | - | 20 20 |
| Oakville | 8/28/26 | 72.4 19.9 | 1548 | 49.6 1.9 | 0059 | 53.1 0.9 | 90 2 | 50 22 | 2.4 | 15.0 4.8 | 0921 | ESE | 116 | 0.00 | 0.00 | 0.078 0.128 | 195 323 | 60 10 |
| OV518-West | 8/28/26 | 73.0 19.4 | 1546 | 51.2 1.2 | 0101 | - | - | - | - | - | - | - | - | - | - | - | 60 10 |
| To Kalon Remote (TKKE) | 8/28/26 | 74.0 22.7 | 1608 | 50.3 2.0 | 0055 | - | - | - | - | - | - | - | - | - | - | - | 20 20 |
| To Kalon | 8/28/26 | 72.6 22.9 | 1611 | 51.4 1.4 | 0101 | 54.3 1.0 | 93 1 | 53 32 | 2.3 | 10.6 5.7 | 0929 | SE | 134 | 0.00 | 0.00 | 0.069 0.130 | 158 345 | 50 10 |
| To Kalon Remote (TKN5) | 8/28/26 | 75.2 21.8 | 1545 | 51.1 1.5 | 0044 | - | - | - | - | - | - | - | - | - | - | - | 20 20 |
| Yountville (Ranch 67) | 8/28/26 | 72.9 17.7 | 1547 | 50.3 0.7 | 0059 | 52.3 0.6 | 89 2 | 48 18 | 2.9 | 17.7 0.3 | 0848 | SE | 139 | 0.00 | 0.00 | 0.097 0.108 | 288 279 | 60 10 |
| Stags Leap Dist (Silverado Vineyards) | 8/28/26 | 73.7 17.9 | 1546 | 50.4 1.5 | 0059 | 52.6 0.9 | 90 2 | 47 18 | 2.6 | 14.3 2.3 | 1548 | SSE | 167 | 0.00 | 0.00 | 0.084 0.114 | 203 328 | 70 10 |
| Borreo (Soda Canyon) | 8/28/26 | 71.1 18.0 | 1556 | 52.0 0.6 | 0101 | 51.6 1.0 | 93 1 | 52 22 | 1.5 | 9.2 4.2 | 1556 | E | 93 | 0.00 | 0.00 | 0.072 0.096 | 216 270 | 70 10 |
| Wappo Hill Floor | 8/28/26 | 74.5 17.8 | 1558 | 50.8 0.4 | 0026 | 53.8 0.7 | 100 8 | 46 15 | 2.2 | 10.5 4.9 | 1615 | SSE | 163 | 0.00 | 0.00 | 0.079 0.105 | 211 273 | 90 20 |
| Stags Leap Dist (Chimney Rock) | 8/28/26 | 72.6 17.6 | 1550 | 50.0 0.9 | 0101 | 55.3 1.5 | 94 4 | 55 17 | 2.0 | 12.7 1.8 | 1550 | SE | 130 | 0.00 | 0.00 | 0.071 0.098 | 192 266 | 60 10 |
| Yountville-South (Ranch 87) | 8/28/26 | 76.2 16.5 | 1548 | 50.9 1.2 | 0053 | 54.3 0.9 | 100 6 | 46 20 | 1.3 | 7.8 5.3 | 1404 | S | 176 | 0.00 | 0.00 | 0.071 0.095 | 202 250 | 20 20 |
| Yountville-SE (Ranch 85) | 8/28/26 | 72.0 18.1 | 1549 | 52.2 0.4 | 0058 | 54.5 1.0 | 93 1 | 51 17 | 2.0 | 10.5 7.9 | 1552 | SSE | 166 | 0.00 | 0.00 | - | 0 0 | 60 10 |
| Oak Knoll-East (Ranch 53) | 8/28/26 | 72.8 17.3 | 1545 | 52.1 0.7 | 0057 | 53.5 0.5 | 89 1 | 48 23 | 1.6 | 10.7 2.9 | 1608 | SE | 131 | 0.00 | 0.00 | 0.075 0.108 | 210 304 | 90 20 |
| Napa-NW (Ranch 54) | 8/28/26 | 76.5 17.6 | 1829 | 52.6 0.5 | 0046 | 53.5 0.1 | 88 2 | 45 26 | 0.4 | 5.1 8.2 | 1424 | S | 191 | 0.00 | 0.00 | - | 0 0 | 90 20 |
| Napa-North (Ranch 29) | 8/28/26 | 72.3 16.4 | 1835 | 53.0 0.4 | 0049 | 54.3 1.4 | 100 0 | 54 18 | 1.2 | 11.0 2.0 | 1524 | SSE | 164 | 0.00 | 0.00 | 0.050 0.059 | 133 137 | 70 10 |
| Max | 82.8 | - | 58.7 | - | 55.8 | 100 | 55 | 2.9 | 17.7 | - | - | 0.00 | 0.00 | 0.097 | 288 | - | |
| Avg | - | - | - | - | 53.2 | - | - | 1.7 | - | - | - | - | - | - | - | - | |
| Min | 71.1 | - | 48.8 | - | 50.5 | 80 | 35 | 0.4 | 5.1 | - | - | 0.00 | 0.00 | 0.012 | 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 | 8/28/26 | 74.7 18.2 | 1539 | 58.2 6.5 | 0101 | 47.6 3.0 | 72 16 | 18 6 | 1.0 | 9.1 3.0 | 0857 | S | 181 | 0.00 | 0.00 | 0.070 0.160 | 244 455 | 100 0 |
| Mount George (Napa East) | 8/28/26 | 70.4 17.5 | 1839 | 54.4 2.6 | 0047 | 53.2 0.4 | 92 1 | 55 23 | 1.0 | 9.4 1.0 | 1431 | W | 273 | 0.00 | 0.00 | 0.067 0.098 | 209 290 | 60 10 |
| Napa-East (Palmaz 300') | 8/28/26 | 75.1 19.5 | 1844 | 55.1 0.4 | 0056 | 53.8 0.5 | 91 9 | 49 23 | 0.3 | 8.3 2.7 | 1457 | SW | 236 | 0.00 | 0.00 | 0.056 0.078 | 179 210 | 30 10 |
| Napa-East (Palmaz 1200') | 7/3/26 | 79.0 6.0 | 1616 | 49.0 3.8 | 0539 | 47.1 0.2 | 100 0 | 45 38 | 2.0 | 12.7 4.5 | 1533 | NW | 313 | - | - | 0.192 0.009 | 656 3 | 30 20 |
| Napa-East (Palmaz 1400') | 8/28/26 | 70.3 17.1 | 0101 | 54.6 0.3 | 0036 | 52.2 1.7 | 96 8 | 37 13 | 2.6 | 11.2 3.1 | 0851 | SW | 233 | 0.00 | 0.03 | 0.074 0.096 | 225 256 | 70 10 |
| Wooden Valley | 8/28/26 | 73.4 18.1 | 1627 | 60.3 2.5 | 2355 | 49.2 0.6 | 72 5 | 38 19 | 3.4 | 15.0 0.4 | 0906 | NNW | 331 | 0.00 | 0.00 | 0.098 0.097 | 228 243 | 20 10 |
| Napa-West Upper (Truchard) | 8/28/26 | 74.3 16.0 | 1622 | 57.4 0.3 | 0101 | 54.2 2.2 | 100 0 | 48 23 | 1.8 | 12.9 7.1 | 1423 | S | 177 | 0.00 | 0.00 | 0.074 0.123 | 201 317 | 60 10 |
| Napa-West Lower (Truchard) | 8/28/26 | 74.1 16.0 | 1622 | 47.4 2.8 | 0059 | 52.2 1.5 | 89 8 | 48 22 | - | - | - | - | - | - | - | - | 60 10 |
| Napa-South (Toyon Farms) | 8/28/26 | 72.5 14.3 | 1616 | 55.2 2.4 | 0053 | 56.2 2.6 | 96 3 | 57 14 | 2.4 | 12.0 2.8 | 0904 | SSE | 165 | 0.00 | 0.00 | 0.045 0.058 | 113 113 | 60 10 |
| Toyon Remote 1 | 8/28/26 | 72.7 15.4 | 1553 | 49.7 4.4 | 0055 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 2 | 8/28/26 | 72.5 13.7 | 1617 | 49.2 3.7 | 0059 | - | - | - | - | - | - | - | - | - | - | - | - |
| Toyon Remote 3 | 8/28/26 | 73.5 15.7 | 1619 | 49.2 4.0 | 0058 | - | - | - | - | - | - | - | - | - | - | - | - |
| Dealy Lane (Ranch 80) | 8/28/26 | 73.8 16.7 | 1831 | 50.6 4.0 | 0059 | 52.9 1.7 | 92 0 | 46 22 | 1.6 | 11.2 5.0 | 0910 | SSE | 147 | 0.00 | 0.00 | 0.073 0.105 | 204 302 | 60 10 |
| Carneros (Saintsbury) | 8/28/26 | 72.4 13.1 | 1628 | 50.5 2.6 | 0101 | 53.4 1.6 | 94 4 | 51 13 | 2.9 | 15.6 0.3 | 1421 | SSW | 204 | 0.00 | 0.00 | - | - | 90 10 |
| Suscol Lower (Ranch 35) | 8/28/26 | 70.3 18.6 | 1826 | 56.4 0.2 | 0055 | 54.1 1.6 | 91 1 | 51 21 | 3.8 | 14.5 0.2 | 1518 | S | 190 | 0.00 | 0.00 | 0.077 0.101 | 194 278 | 70 10 |
| Suscol Mtn (Ranch 93) | 8/28/26 | 68.7 23.5 | 1829 | 55.3 4.0 | 0055 | 54.1 0.5 | 96 0 | 60 30 | 3.3 | 17.3 2.3 | 1428 | NNW | 328 | 0.00 | 0.00 | - | - | 70 10 |
| Suscol Upper (Ranch 92) | 8/28/26 | 69.0 19.8 | 1830 | 56.2 2.7 | 0059 | 54.1 12.4 | 100 0 | 0 0 | 1.8 | 15.9 1.7 | 0841 | SSE | 167 | 0.00 | 0.00 | - | - | 70 10 |
| Stanly (Ranch 45) | 8/28/26 | 71.0 15.2 | 1837 | 54.0 1.6 | 0047 | 54.3 1.7 | 90 4 | 52 16 | 3.4 | 15.4 0.1 | 0900 | SSW | 193 | 0.00 | 0.00 | 0.081 0.107 | 213 322 | 80 10 |
| Carneros Upper (Ranch 81) | 8/28/26 | 74.2 15.0 | 1824 | 56.6 2.7 | 0059 | 53.0 1.4 | - | - | 4.1 | 19.4 0.0 | 1413 | SW | 230 | - | - | - | - | 60 10 |
| Carneros (Mitsuko) | 8/28/26 | 72.7 14.7 | 1613 | 46.8 3.6 | 0101 | - | - | - | - | - | - | - | - | - | - | - | 90 10 |
| Carneros Lower (Ranch 81) | 8/28/26 | 77.4 11.8 | 1618 | 50.8 4.0 | 0059 | 53.7 0.7 | 90 10 | 45 44 | 0.6 | 9.6 4.3 | 1849 | S | 170 | 0.00 | 0.00 | 0.007 0.029 | 0 0 | 60 10 |
| Carneros (Milton Rd) | 8/28/26 | 72.0 13.5 | 1622 | 49.5 3.6 | 0059 | 53.3 2.1 | 88 4 | 49 11 | - | - | - | - | 0.00 | 0.00 | - | - | 90 10 |
| Max | 77.4 | - | 60.3 | - | 56.2 | 100 | 60 | 4.1 | 19.4 | - | - | 0.00 | 0.03 | 0.098 | 244 | - | |
| Avg | - | - | - | - | 53.0 | - | - | 2.3 | - | - | - | - | - | - | - | - | |
| Min | 68.7 | - | 46.8 | - | 47.6 | 72 | 0 | 0.3 | 8.3 | - | - | 0.00 | 0.00 | 0.007 | 0 | - |