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St. Helena (NVV Office)

Current Conditions

6/25/26 5:45 AM (-07:00)
Updated Every 15 Minutes
Temp 56.3 °F   2.0
Wind Spd 1.4 mph   0.6
Wind Dir NNW | 330 °
Wind Gust 3.6 mph   0.4
Wind Gst Dir N | 1 °
Latest Rain 0.00 In
Daily Rain 0.00 In
Daily Max Temp 57.4 °F   1.0
Daily Min Temp 56.0 °F   3.6
Daily Max Wind 4.9 mph   1.2
Max Wind Dir NNE | 24 °

St. Helena (NVV Office)

Current Conditions

6/25/26 5:45 AM (-07:00)
Updated Every 15 Minutes
Daily Rain 0.00 In
Month Precip 0.00 In
Season Precip 29.13 In
Yest MaxT 86.9 °F
Yest MinT 52.4 °F
Yest MaxGst 9.5 mph
Yest Precip 0.00 In

Last 7 Days

St. Helena (NVV Office)

Daily Data | America/Los_Angeles
as of 6/25/26 5:58 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)
6/24/26 86.9 52.4 1.7 ESE | 118 9.5 1812 0.00 29.13 16.6 0.0 80 12.6
6/23/26 87.8 52.7 1.7 ESE | 109 9.9 1619 0.00 29.13 17.5 0.0 90 12.6
6/22/26 85.9 54.2 1.8 E | 100 11.0 1609 0.00 29.13 17.0 0.0 100 12.6
6/21/26 89.8 52.8 1.5 ESE | 107 9.5 1800 0.00 29.13 18.0 0.0 80 12.6
6/20/26 85.0 56.4 2.0 NW | 305 11.5 1550 0.00 29.13 18.8 0.0 90 12.7
6/19/26 78.2 58.5 2.2 WNW | 289 10.4 1722 0.00 29.13 15.6 0.0 70 12.6
6/18/26 83.0 57.6 2.7 NW | 304 14.0 1709 0.00 29.13 15.8 0.0 50 12.6
Max 89.8 58.5 2.7 - 14.0 - 0.00 29.13 18.8 0.0 - 12.7
Avg - - 1.9 - - - - - 17.0 0.0 - -
Min 78.2 52.4 1.5 - 9.5 - 0.00 29.13 15.6 0.0 - 12.6
Total - - - - - - - - 119.3 0.0 - -

Climate Summary

St. Helena (NVV Office)

Current Year | Showing 1/1/26 - 6/24/26
as of 6/25/26 5:58 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 30 73.4 45.7 87.3 39.4 11.1 18 4.09 0 0 0 0 5 2 0
May 2026 31 81.7 51.4 96.1 46 11.6 23.5 1.18 0 0 4 0 3 0 0
Jun 2026 24 90.7 55.1 109.1 48.6 11.4 16.3 0 0 0 10 3 0 0 0
Total 175 - - - - - - 15.34 0 5 22 3 20 6 0
Average 29.2 76.5 46.4 76.5 46.4 10.6 - 2.56 0 0.8 3.7 0.5 3.3 1 0
Maximum 31 90.7 55.1 109.1 - - 23.5 5.23 0 3 10 3 6 2 0
Minimum 24 65.3 38.6 - 28.8 - - 0 0 0 0 0 0 0 0