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St. Helena (NVV Office)

Current Conditions

3/13/26 11:00 PM (-07:00)
Updated Every 15 Minutes
Temp 59.9 °F   2.4
Wind Spd 2.7 mph   0.3
Wind Dir NW | 306 °
Wind Gust 7.4 mph   2.3
Wind Gst Dir NW | 305 °
Latest Rain 0.00 In
Daily Rain 0.00 In
Daily Max Temp 79.1 °F   6.5
Daily Min Temp 40.6 °F   3.1
Daily Max Wind 9.4 mph   4.6
Max Wind Dir SE | 128 °

St. Helena (NVV Office)

Current Conditions

3/13/26 11:00 PM (-07:00)
Updated Every 15 Minutes
Daily Rain 0.00 In
Month Precip 0.00 In
Season Precip 23.51 In
Yest MaxT 85.6 °F
Yest MinT 43.7 °F
Yest MaxGst 14.1 mph
Yest Precip 0.00 In

Last 7 Days

St. Helena (NVV Office)

Daily Data | America/Los_Angeles
as of 3/13/26 11:14 PM PDT
Date Daily Max Temp (°F) Daily Min Temp (°F) Wind Spd (mph) Wind Dir (°) Daily Max Wind (mph) Time of Max Wind Daily Rain (In) Season Precip (In) GDDs (DL) Chilling <=45F (hrs) Powdery Mildew Stress (pts) MinBV Day (V)
3/12/26 85.6 43.7 1.2 NNW | 342 14.1 1724 0.00 23.51 12.8 0.8 100 12.6
3/11/26 81.0 40.2 1.4 NW | 314 7.5 1517 0.00 23.51 11.6 4.0 90 12.6
3/10/26 74.7 40.8 1.8 NW | 324 10.1 1755 0.00 23.51 8.1 4.6 70 12.5
3/9/26 79.5 45.3 2.1 NW | 314 11.1 1349 0.00 23.51 11.0 0.0 80 12.6
3/8/26 83.9 51.1 1.4 NW | 320 9.9 0144 0.00 23.51 15.9 0.0 60 12.6
3/7/26 80.7 58.0 3.8 NNW | 342 18.9 1134 0.00 23.51 20.8 0.0 0 12.6
3/6/26 75.9 50.3 4.4 N | 354 19.9 0741 0.00 23.51 14.0 0.0 0 12.6
Max 85.6 58.0 4.4 - 19.9 - 0.00 23.51 20.8 4.6 - 12.6
Avg - - 2.3 - - - - - 13.5 1.3 - -
Min 74.7 40.2 1.2 - 7.5 - 0.00 23.51 8.1 0.0 - 12.5
Total - - - - - - - - 94.2 9.3 - -

Climate Summary

St. Helena (NVV Office)

Current Year | Showing 1/1/26 - 3/12/26
as of 3/13/26 11:14 PM PDT
Temperature (°F) Max Wind Gust (mph) Precip (in) Days
Month Days Avg High Avg Low Max Min Avg Max Total Daily Min Temp < 28 Daily Min Temp < 32 Daily Max Temp > 90 Daily Max Temp > 100 Daily Rain > 0.25 Daily Rain > 1 Daily Max Wind > 25
Jan 2026 31 65.3 38.6 81.6 31.5 8.9 17.5 4.49 0 2 0 0 5 2 0
Feb 2026 28 66.9 42 83.4 28.8 9.9 18.8 5.23 0 3 0 0 6 2 0
Mar 2026 12 76.3 46.7 85.6 40.2 12.9 19.9 0 0 0 0 0 0 0 0
Total 71 - - - - - - 9.72 0 5 0 0 11 4 0
Average 23.7 67.8 41.3 67.8 41.3 10 - 3.24 0 1.7 0 0 3.7 1.3 0
Maximum 31 76.3 46.7 85.6 - - 19.9 5.23 0 3 0 0 6 2 0
Minimum 12 65.3 38.6 - 28.8 - - 0 0 0 0 0 0 0 0