Weather History for Napa County, CA

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Sunday, May 6, 2012

  Actual Average Record
Temperature  
Mean Temperature 69 °F 57 °F  
Max Temperature 86 °F 71 °F 90 °F (2007)
Min Temperature 51 °F 44 °F 38 °F (2003)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days 46  
Since 1 July heating degree days 2993  
Cooling Degree Days 4    
Month to date cooling degree days 4  
Year to date cooling degree days 11  
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 40 °F    
Average Humidity 46    
Maximum Humidity 77    
Minimum Humidity 15    
Precipitation  
Precipitation 0.00 in - 0.40 in (1926)
Month to date precipitation 0.01  
Year to date precipitation 13.70  
Since 1 July precipitation 17.28  
Sea Level Pressure  
Sea Level Pressure 30.01 in    
Wind  
Wind Speed 7 mph (North)    
Max Wind Speed 18 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Astronomy

May. 06, 2012 Rise Set
Actual Time 6:06 AM PDT 8:05 PM PDT
Civil Twilight 5:37 AM PDT 8:34 PM PDT
Nautical Twilight 5:02 AM PDT 9:09 PM PDT
Astronomical Twilight 4:24 AM PDT 9:48 PM PDT
Moon 9:15 PM PDT (5/6) 6:22 AM PDT (5/6)
Length of Visible Light 14h 57m
Length of Day
13h 59m
Full, 99% of the Moon is Illuminated
May 6
Full
May 12
Last Quarter
May 20
New
May 28
First Quarter
Jun 4
Full

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 53.1 °F 46.0 °F 77% 30.02 in 10.0 mi Calm Calm - N/A   Clear
1:54 AM 62.1 °F 34.0 °F 35% 30.01 in 10.0 mi NNW 10.4 mph - N/A   Clear
2:54 AM 63.0 °F 34.0 °F 34% 30.01 in 10.0 mi North 11.5 mph - N/A   Clear
3:54 AM 59.0 °F 35.1 °F 41% 30.01 in 10.0 mi North 11.5 mph - N/A   Clear
4:54 AM 60.1 °F 35.1 °F 39% 30.01 in 10.0 mi North 11.5 mph - N/A   Clear
5:54 AM 57.9 °F 34.0 °F 41% 30.02 in 10.0 mi NNW 9.2 mph - N/A   Clear
6:54 AM 61.0 °F 37.0 °F 41% 30.03 in 10.0 mi North 6.9 mph - N/A   Clear
7:54 AM 68.0 °F 39.9 °F 36% 30.04 in 10.0 mi Calm Calm - N/A   Clear
8:54 AM 72.0 °F 36.0 °F 27% 30.04 in 10.0 mi Calm Calm - N/A   Clear
9:54 AM 73.9 °F 35.1 °F 24% 30.04 in 10.0 mi North 16.1 mph 20.7 mph N/A   Clear
10:24 AM 75.2 °F 33.8 °F 22% 30.06 in 10.0 mi NNE 16.1 mph 21.9 mph N/A   Clear
10:54 AM 77.0 °F 32.0 °F 19% 30.04 in 10.0 mi NNE 9.2 mph 21.9 mph N/A   Clear
11:54 AM 79.0 °F 35.1 °F 20% 30.04 in 10.0 mi NNE 13.8 mph 19.6 mph N/A   Clear
12:54 PM 80.1 °F 36.0 °F 20% 30.02 in 10.0 mi North 15.0 mph - N/A   Clear
1:54 PM 82.0 °F 34.0 °F 18% 30.01 in 10.0 mi North 5.8 mph 17.3 mph N/A   Clear
2:54 PM 84.0 °F 36.0 °F 18% 30.00 in 10.0 mi NW 8.1 mph 16.1 mph N/A   Clear
3:54 PM 84.0 °F 32.0 °F 15% 29.97 in 10.0 mi Variable 3.5 mph - N/A   Clear
4:54 PM 80.1 °F 48.0 °F 32% 29.96 in 10.0 mi SW 13.8 mph - N/A   Clear
5:54 PM 79.0 °F 48.0 °F 34% 29.96 in 10.0 mi West 10.4 mph - N/A   Clear
6:54 PM 75.0 °F 48.0 °F 38% 29.96 in 10.0 mi West 6.9 mph - N/A   Clear
7:54 PM 71.1 °F 46.9 °F 42% 29.97 in 10.0 mi South 3.5 mph - N/A   Clear
8:54 PM 63.0 °F 52.0 °F 67% 29.98 in 10.0 mi Calm Calm - N/A   Clear
9:54 PM 59.0 °F 50.0 °F 72% 29.99 in 10.0 mi SE 4.6 mph - N/A   Clear
10:54 PM 55.0 °F 46.9 °F 74% 29.99 in 10.0 mi Calm Calm - N/A   Clear
11:54 PM 54.0 °F 46.9 °F 77% 29.99 in 10.0 mi ESE 3.5 mph - N/A   Clear