Weather History for Napa County, CA

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Saturday, August 30, 2014

  Actual Average Record
Temperature  
Mean Temperature 70 °F 66 °F  
Max Temperature 88 °F 81 °F 95 °F (2007)
Min Temperature 51 °F 52 °F 44 °F (2010)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days 12  
Since 1 June heating degree days 65  
Since 1 July heating degree days 22  
Cooling Degree Days 5    
Month to date cooling degree days 43  
Year to date cooling degree days 171  
Since 1 June cooling degree days 160  
Growing Degree Days 19 (Base 50)    
Moisture  
Dew Point 55 °F    
Average Humidity 63    
Maximum Humidity 100    
Minimum Humidity 26    
Precipitation  
Precipitation 0.00 in - 0.15 in (1966)
Month to date precipitation 0.07  
Year to date precipitation 8.34  
Since 1 July precipitation 0.07  
Sea Level Pressure  
Sea Level Pressure 29.84 in    
Wind  
Wind Speed 8 mph (SW)    
Max Wind Speed 23 mph    
Max Gust Speed 27 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Aug. 30, 2014 Rise Set
Actual Time 6:37 AM PDT 7:41 PM PDT
Civil Twilight 6:09 AM PDT 8:08 PM PDT
Nautical Twilight 5:37 AM PDT 8:40 PM PDT
Astronomical Twilight 5:03 AM PDT 9:14 PM PDT
Moon 11:25 AM PDT (8/30) 10:24 PM PDT (8/30)
Length of Visible Light 13h 58m
Length of Day
13h 04m
Waxing Crescent, 24% of the Moon is Illuminated
Aug 30
Waxing Crescent
Sep 2
First Quarter
Sep 8
Full
Sep 15
Last Quarter
Sep 23
New

Hourly Weather History & Observations

Time (PDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 62.1 °F - 55.9 °F 80% 29.86 in 10.0 mi SSW 4.6 mph - N/A   Clear
1:54 AM 62.1 °F - 57.0 °F 84% 29.85 in 10.0 mi SSE 3.5 mph - N/A   Clear
2:54 AM 62.1 °F - 57.0 °F 84% 29.86 in 10.0 mi Calm Calm - N/A   Clear
3:54 AM 60.1 °F - 55.0 °F 83% 29.85 in 10.0 mi Calm Calm - N/A   Clear
4:54 AM 55.0 °F - 52.0 °F 89% 29.85 in 10.0 mi Calm Calm - N/A   Clear
5:54 AM 54.0 °F - 53.1 °F 97% 29.86 in 10.0 mi Calm Calm - N/A   Clear
6:37 AM 52.0 °F - 52.0 °F 100% 29.89 in 1.5 mi Calm Calm - N/A   Clear
6:46 AM 52.0 °F - 51.1 °F 97% 29.89 in 4.0 mi NW 3.5 mph - N/A   Clear
6:54 AM 51.1 °F - 51.1 °F 100% 29.87 in 10.0 mi NW 3.5 mph - N/A   Clear
7:54 AM 60.1 °F - 57.0 °F 90% 29.88 in 10.0 mi Calm Calm - N/A   Clear
8:54 AM 66.0 °F - 55.9 °F 70% 29.88 in 10.0 mi SW 4.6 mph - N/A   Clear
9:54 AM 70.0 °F - 57.9 °F 65% 29.88 in 10.0 mi SW 5.8 mph - N/A   Clear
10:54 AM 73.0 °F - 55.9 °F 55% 29.88 in 10.0 mi SSW 6.9 mph - N/A   Clear
11:54 AM 78.1 °F - 57.0 °F 48% 29.87 in 10.0 mi SSW 10.4 mph - N/A   Clear
12:54 PM 82.0 °F 82.0 °F 57.9 °F 44% 29.85 in 10.0 mi SSW 12.7 mph - N/A   Clear
1:54 PM 84.0 °F 83.3 °F 57.0 °F 40% 29.84 in 10.0 mi South 12.7 mph - N/A   Clear
2:54 PM 84.0 °F 83.3 °F 57.0 °F 40% 29.81 in 10.0 mi SSW 16.1 mph - N/A   Clear
3:54 PM 86.0 °F 85.0 °F 57.9 °F 38% 29.80 in 10.0 mi SW 18.4 mph - N/A   Clear
4:54 PM 87.1 °F - 48.0 °F 26% 29.79 in 10.0 mi WSW 20.7 mph - N/A   Clear
5:54 PM 84.9 °F - 51.1 °F 31% 29.77 in 10.0 mi WSW 19.6 mph 24.2 mph N/A   Clear
6:54 PM 80.1 °F 79.9 °F 53.1 °F 39% 29.78 in 10.0 mi SW 15.0 mph - N/A   Clear
7:54 PM 73.0 °F - 57.0 °F 57% 29.79 in 10.0 mi SSE 9.2 mph - N/A   Clear
8:54 PM 70.0 °F - 55.9 °F 61% 29.80 in 10.0 mi South 9.2 mph - N/A   Clear
9:54 PM 66.9 °F - 55.9 °F 68% 29.81 in 10.0 mi Variable 3.5 mph - N/A   Clear
10:54 PM 63.0 °F - 55.0 °F 75% 29.83 in 10.0 mi SSW 5.8 mph - N/A   Clear
11:54 PM 64.0 °F - 57.0 °F 78% 29.82 in 10.0 mi SSW 10.4 mph - N/A   Clear