Northern & Central Napa County

27 Stations

Daily Data | America/Los_Angeles
as of 1/21/26 4:16 AM PST
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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 1/20/26 70.1   1.9 1319 37.2   2.8 0728 44.2   1.5 100   0 41   5 - - - - 0.01 22.65 - - -
Fotsch (Maple Lane) 1/20/26 65.0   4.6 1256 35.6   3.8 0151 42.3   2.1 98   0 50   13 2.4 11.3   1.3 1351 ESE | 112 0.00 20.61 - - -
Diamond Mtn (Schramsberg) 1/20/26 64.2   5.2 1229 43.9   5.4 0556 39.0   1.8 88   11 28   12 - - - - 0.00 20.76 - - -
Diamond Mtn (McEachran) 1/20/26 65.5   5.0 1248 40.9   4.3 0637 43.5   2.4 97   10 35   1 - - - - - - - - -
St. Helena-North 1/20/26 60.4   7.2 1240 37.8   2.2 0732 42.4   1.3 100   1 62   26 2.3 11.2   1.8 1202 S | 173 0.00 20.73 0.036   0.019 132   75 -
St. Helena (NVV Office) 1/20/26 58.2   8.1 1455 38.7   3.9 0148 - - - 1.2 6.4   0.4 1620 SE | 137 0.00 18.18 - - -
Tiara Fria (East St. Helena) 1/20/26 56.6   7.8 1453 36.4   2.6 0245 41.8   1.2 98   0 69   18 1.7 7.8   0.8 1606 SE | 129 0.00 16.72 - - -
Rutherford Hill Estate 1/20/26 58.3   8.2 1452 40.0   5.2 0816 43.6   0.4 97   8 68   24 1.3 6.4   1.5 1248 S | 175 0.00 17.00 0.034   0.019 162   64 0   0
Rutherford-North (Mee Ln) 1/20/26 56.7   8.1 1455 31.5   1.8 0728 38.7   0.2 100   0 68   18 2.0 9.2   2.0 1607 SE | 125 0.00 15.31 0.032   0.023 157   74 0   0
Rutherford (STS) 1/20/26 57.3   9.1 1445 34.8   1.0 0224 40.5   0.6 92   0 76   20 1.7 7.4   2.0 1616 SE | 135 0.00 16.01 0.036   0.028 181   95 -
Oakville-NE (Ranch 88) 1/20/26 55.9   8.3 1446 33.5   3.2 0248 39.6   2.2 97   0 68   20 0.0 4.1   7.8 1832 SE | 142 0.00 16.02 0.032   0.030 160   111 0   0
OV561-East 1/20/26 56.9   10.1 1457 35.9   3.6 0104 - - - - - - - - - - - -
Oakville 1/20/26 55.1   7.8 1436 35.2   2.7 0255 40.8   1.2 98   0 69   20 2.5 9.9   3.9 1605 SE | 134 0.00 16.58 0.035   0.026 169   95 -
OV518-West 1/20/26 55.5   8.5 1439 36.1   3.0 0336 - - - - - - - - - - - -
To Kalon Remote (TKKE) 1/20/26 57.3   8.5 1456 34.3   2.2 0234 - - - - - - - - - - - -
To Kalon 1/20/26 55.4   8.7 1354 35.8   2.5 0243 42.1   0.9 100   0 73   20 2.0 8.5   3.1 1603 SSE | 156 0.00 17.71 0.032   0.025 148   100 -
To Kalon Remote (TKN5) 1/20/26 56.5   8.5 1440 35.6   3.5 0207 - - - - - - - - - - - -
Yountville (Ranch 67) 1/20/26 54.7   7.7 1345 35.5   2.8 0312 40.6   1.7 98   0 67   18 1.8 8.5   4.5 1318 S | 180 0.00 15.15 0.037   0.028 247   100 -
Stags Leap Dist (Silverado Vineyards) 1/20/26 54.4   7.5 1457 35.2   1.6 0237 40.9   1.1 100   0 68   19 1.3 10.4   2.9 1601 SE | 135 0.00 18.44 0.034   0.032 166   96 -
Borreo (Soda Canyon) 1/20/26 56.3   6.7 1227 38.5   0.9 0734 41.5   1.3 98   1 61   15 1.6 7.3   0.5 0254 NNW | 329 0.00 18.80 0.039   0.022 196   79 -
Wappo Hill Floor 1/20/26 54.7   8.7 1345 34.7   3.8 0656 41.2   1.4 100   0 72   21 1.8 7.4   3.0 1336 SSE | 155 0.00 18.22 0.030   0.031 145   120 -
Stags Leap Dist (Chimney Rock) 1/20/26 54.6   10.8 1349 36.5   4.6 0702 - - - 2.0 8.8   0.7 0430 SSE | 158 0.00 16.24 0.036   0.017 126   101 0   0
Yountville-South (Ranch 87) 1/20/26 55.2   8.4 1343 35.4   1.8 0247 41.8   0.5 100   0 73   18 1.4 6.6   1.9 1307 S | 175 0.00 18.26 0.029   0.030 134   122 -
Yountville-SE (Ranch 85) 1/20/26 54.4   9.0 1344 34.5   1.4 0257 42.0   1.4 100   0 72   21 1.5 6.9   2.9 1304 SW | 224 0.00 17.18 - 0   0 0   0
Oak Knoll-East (Ranch 53) 1/20/26 54.0   9.2 1510 36.8   3.6 0311 41.4   1.2 98   0 68   18 1.4 6.6   1.5 1340 S | 171 0.00 16.09 0.029   0.027 126   116 -
Napa-NW (Ranch 54) 1/20/26 54.9   7.5 1225 36.6   2.0 0642 42.3   0.6 100   0 69   16 1.3 6.4   4.0 1342 SE | 131 0.00 17.24 - 0   0 0   0
Napa-North (Ranch 29) 1/20/26 53.3   9.4 1220 36.5   3.1 0309 42.3   1.7 100   0 73   25 1.1 7.7   0.8 1228 SSE | 166 0.00 15.78 0.023   0.017 91   63 -
Max   70.1 - 43.9 - 44.2 100 76 2.5 11.3 - - 0.01 22.65 0.039 247 -
Avg   - - - - 41.5 - - 1.6 - - - - - - - -
Min   53.3 - 31.5 - 38.7 88 28 0.0 4.1 - - 0.00 15.15 0.023 0 -