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St. Helena (NVV Office)

Current Conditions

4/13/26 12:00 AM (-07:00)
Updated Every 15 Minutes
Temp 50.6 °F   1.8
Wind Spd 0.3 mph   1.2
Wind Dir S | 178 °
Wind Gust 1.7 mph   5.5
Wind Gst Dir S | 178 °
Latest Rain 0.00 In
Daily Rain 0.40 In
Daily Max Temp 62.6 °F   1.4
Daily Min Temp 48.3 °F   1.0
Daily Max Wind 10.5 mph   3.4
Max Wind Dir SW | 229 °

St. Helena (NVV Office)

Current Conditions

4/13/26 12:00 AM (-07:00)
Updated Every 15 Minutes
Daily Rain 0.40 In
Storm Total 2.33 In
Month Precip 2.52 In
Season Precip 26.38 In
Yest MaxT 61.2 °F
Yest MinT 47.2 °F
Yest MaxGst 13.9 mph
Yest Precip 1.06 In

Last 7 Days

St. Helena (NVV Office)

Daily Data | America/Los_Angeles
as of 4/13/26 12:09 AM PDT
Load Interactive
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)
4/11/26 61.2 47.2 1.3 SE | 133 13.9 1738 1.06 25.98 3.9 0.0 80 12.6
4/10/26 65.9 51.4 0.8 ESE | 111 7.8 1518 0.87 24.92 6.9 0.0 90 12.6
4/9/26 76.5 50.6 1.3 NW | 306 10.4 1431 0.00 24.05 11.2 0.0 100 12.6
4/8/26 84.1 46.0 1.2 W | 275 10.7 1746 0.00 24.05 13.7 0.0 100 12.6
4/7/26 80.7 47.5 1.3 NNW | 340 9.5 1642 0.00 24.05 10.7 0.0 100 12.6
4/6/26 81.1 45.2 1.1 W | 267 11.1 1746 0.00 24.05 11.0 0.0 100 12.6
Max 84.1 51.4 1.3 - 13.9 - 1.06 25.98 13.7 0.0 - 12.6
Avg - - 1.2 - - - - - 9.6 0.0 - -
Min 61.2 45.2 0.8 - 7.8 - 0.00 24.05 3.9 0.0 - 12.6
Total - - - - - - - - 57.4 0.0 - -

Climate Summary

St. Helena (NVV Office)

Current Year | Showing 1/1/26 - 4/11/26
as of 4/13/26 12:09 AM 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 31 83.1 46.9 95.3 40.2 10.9 19.9 0.35 0 0 8 0 1 0 0
Apr 2026 11 75.7 47.1 87.3 41.7 11.4 16.8 2.12 0 0 0 0 2 1 0
Total 101 - - - - - - 12.19 0 5 8 0 14 5 0
Average 25.2 72.3 43 72.3 43 10.1 - 3.05 0 1.2 2 0 3.5 1.2 0
Maximum 31 83.1 47.1 95.3 - - 19.9 5.23 0 3 8 0 6 2 0
Minimum 11 65.3 38.6 - 28.8 - - 0.35 0 0 0 0 1 0 0