Weather History for Napa County, CA

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Wednesday, August 14, 2013

  Actual Average Record
Temperature  
Mean Temperature 65 °F 66 °F  
Max Temperature 81 °F 79 °F 85 °F (2000)
Min Temperature 48 °F 52 °F 47 °F (2007)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days 16  
Since 1 June heating degree days 66  
Since 1 July heating degree days 36  
Cooling Degree Days 0    
Month to date cooling degree days 9  
Year to date cooling degree days 157  
Since 1 June cooling degree days 137  
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 65    
Maximum Humidity 87    
Minimum Humidity 42    
Precipitation  
Precipitation 0.00 in - 0.07 in (1976)
Month to date precipitation 0.00  
Year to date precipitation 1.97  
Since 1 July precipitation 0.00  
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 9 mph (SSW)    
Max Wind Speed 21 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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Date:

Astronomy

Aug. 14, 2013 Rise Set
Actual Time 6:23 AM PDT 8:03 PM PDT
Civil Twilight 5:55 AM PDT 8:31 PM PDT
Nautical Twilight 5:21 AM PDT 9:05 PM PDT
Astronomical Twilight 4:44 AM PDT 9:41 PM PDT
Moon 2:20 PM PDT (8/14) No Moon Set
Length of Visible Light 14h 36m
Length of Day
13h 40m
First Quarter, 54% of the Moon is Illuminated
Aug 14
First Quarter
Aug 20
Full
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter

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 61.0 °F - 54.0 °F 78% 29.92 in 10.0 mi SW 9.2 mph - N/A   Clear
1:54 AM 57.9 °F - 52.0 °F 81% 29.92 in 10.0 mi SW 5.8 mph - N/A   Clear
2:54 AM 54.0 °F - 48.9 °F 83% 29.92 in 10.0 mi WSW 5.8 mph - N/A   Clear
3:54 AM 52.0 °F - 46.9 °F 83% 29.92 in 10.0 mi Calm Calm - N/A   Clear
4:54 AM 50.0 °F - 46.0 °F 86% 29.92 in 10.0 mi Calm Calm - N/A   Clear
5:54 AM 50.0 °F - 46.9 °F 89% 29.92 in 10.0 mi Calm Calm - N/A   Clear
6:54 AM 48.9 °F - 46.0 °F 90% 29.94 in 10.0 mi Calm Calm - N/A   Clear
7:03 AM 48.2 °F - 46.4 °F 93% 29.97 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:54 AM 59.0 °F - 54.0 °F 83% 29.95 in 10.0 mi SW 6.9 mph - N/A   Clear
8:54 AM 63.0 °F - 51.1 °F 65% 29.95 in 10.0 mi SW 8.1 mph - N/A   Clear
9:54 AM 64.9 °F - 54.0 °F 68% 29.95 in 10.0 mi SSW 8.1 mph - N/A   Clear
10:54 AM 68.0 °F - 54.0 °F 61% 29.95 in 10.0 mi South 10.4 mph - N/A   Clear
11:54 AM 72.0 °F - 54.0 °F 53% 29.94 in 10.0 mi SSW 9.2 mph - N/A   Clear
12:54 PM 75.0 °F - 55.0 °F 50% 29.93 in 10.0 mi SSW 9.2 mph - N/A   Clear
1:54 PM 79.0 °F - 55.9 °F 45% 29.91 in 10.0 mi South 12.7 mph - N/A   Clear
2:54 PM 79.0 °F - 55.9 °F 45% 29.90 in 10.0 mi SSW 12.7 mph - N/A   Clear
3:54 PM 80.1 °F 80.1 °F 55.0 °F 42% 29.88 in 10.0 mi SSW 16.1 mph - N/A   Clear
4:54 PM 79.0 °F - 57.0 °F 47% 29.86 in 10.0 mi SSW 16.1 mph - N/A   Clear
5:54 PM 80.1 °F 80.1 °F 55.0 °F 42% 29.86 in 10.0 mi SW 18.4 mph 24.2 mph N/A   Clear
6:54 PM 77.0 °F - 55.9 °F 48% 29.85 in 10.0 mi SW 16.1 mph - N/A   Clear
7:54 PM 72.0 °F - 57.9 °F 61% 29.86 in 10.0 mi SW 12.7 mph - N/A   Clear
8:54 PM 68.0 °F - 59.0 °F 73% 29.86 in 10.0 mi SSW 9.2 mph - N/A   Clear
9:54 PM 66.0 °F - 60.1 °F 81% 29.88 in 10.0 mi SSW 12.7 mph - N/A   Clear
10:54 PM 66.0 °F - 59.0 °F 78% 29.89 in 10.0 mi SSW 11.5 mph - N/A   Clear
11:54 PM 64.9 °F - 61.0 °F 87% 29.89 in 10.0 mi SSW 10.4 mph - N/A   Clear