Napa County, CA

4:31 AM PDT on March 30, 2017 (GMT -0700)
Napa County

Weather History for KAPC - August, 2012

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Monday, August 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 64 °F 66 °F  
Max Temperature 73 °F 80 °F 87 °F (2007)
Min Temperature 54 °F 52 °F 46 °F (2000)
Degree Days  
Heating Degree Days 1    
Month to date heating degree days 7  
Since 1 June heating degree days 94  
Since 1 July heating degree days 33  
Cooling Degree Days 0    
Month to date cooling degree days 37  
Year to date cooling degree days 142  
Since 1 June cooling degree days 128  
Growing Degree Days 13 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 71    
Maximum Humidity 93    
Minimum Humidity 49    
Precipitation  
Precipitation 0.00 in - 0.52 in (1983)
Month to date precipitation T  
Year to date precipitation 13.77  
Since 1 July precipitation T  
Sea Level Pressure  
Sea Level Pressure 29.87 in    
Wind  
Wind Speed 9 mph (SW)    
Max Wind Speed 16 mph    
Max Gust Speed 20 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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Date:

Astronomy

Aug. 20, 2012 Rise Set
Actual Time 6:28 AM PDT 7:55 PM PDT
Civil Twilight 6:01 AM PDT 8:22 PM PDT
Nautical Twilight 5:27 AM PDT 8:56 PM PDT
Astronomical Twilight 4:52 AM PDT 9:30 PM PDT
Moon 9:52 AM PDT (8/20) 9:26 PM PDT (8/20)
Length of Visible Light 14h 21m
Length of Day
13h 26m
Waxing Crescent, 12% of the Moon is Illuminated
Aug 20
Waxing Crescent
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last Quarter
Sep 15
New

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 54.0 °F 51.1 °F 90% 29.88 in 10.0 mi WSW 4.6 mph - N/A   Partly Cloudy
1:12 AM 53.6 °F 51.8 °F 94% 29.90 in 10.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
1:54 AM 55.0 °F 52.0 °F 89% 29.88 in 10.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
2:54 AM 55.9 °F 53.1 °F 90% 29.88 in 10.0 mi WSW 9.2 mph - N/A   Overcast
3:54 AM 55.9 °F 53.1 °F 90% 29.88 in 10.0 mi WSW 6.9 mph - N/A   Overcast
4:54 AM 55.9 °F 53.1 °F 90% 29.88 in 10.0 mi SSW 8.1 mph - N/A   Overcast
5:54 AM 55.0 °F 52.0 °F 89% 29.88 in 10.0 mi SW 5.8 mph - N/A   Overcast
6:54 AM 55.9 °F 52.0 °F 87% 29.89 in 10.0 mi SSW 5.8 mph - N/A   Overcast
7:54 AM 55.9 °F 52.0 °F 87% 29.91 in 10.0 mi WSW 3.5 mph - N/A   Overcast
8:54 AM 57.0 °F 52.0 °F 83% 29.92 in 10.0 mi SW 6.9 mph - N/A   Overcast
9:54 AM 57.9 °F 52.0 °F 81% 29.93 in 10.0 mi WSW 5.8 mph - N/A   Overcast
10:54 AM 59.0 °F 52.0 °F 78% 29.93 in 10.0 mi SSW 8.1 mph - N/A   Mostly Cloudy
11:30 AM 62.6 °F 53.6 °F 72% 29.94 in 10.0 mi SW 6.9 mph - N/A   Partly Cloudy
11:54 AM 64.0 °F 53.1 °F 67% 29.91 in 10.0 mi Variable 5.8 mph - N/A   Clear
12:54 PM 69.1 °F 54.0 °F 58% 29.89 in 10.0 mi Variable 6.9 mph - N/A   Clear
1:54 PM 70.0 °F 54.0 °F 57% 29.87 in 10.0 mi South 6.9 mph - N/A   Clear
2:54 PM 73.0 °F 54.0 °F 51% 29.85 in 10.0 mi SW 8.1 mph - N/A   Clear
3:54 PM 72.0 °F 55.0 °F 55% 29.83 in 10.0 mi SSW 9.2 mph - N/A   Clear
4:54 PM 71.1 °F 55.0 °F 57% 29.82 in 10.0 mi SSW 10.4 mph - N/A   Clear
5:54 PM 69.1 °F 55.0 °F 61% 29.82 in 10.0 mi SSW 11.5 mph - N/A   Clear
6:54 PM 64.9 °F 55.0 °F 70% 29.81 in 10.0 mi South 11.5 mph - N/A   Clear
7:54 PM 62.1 °F 55.0 °F 78% 29.81 in 10.0 mi SSW 11.5 mph - N/A   Clear
8:54 PM 59.0 °F 55.0 °F 87% 29.83 in 10.0 mi South 12.7 mph - N/A   Clear
9:54 PM 57.9 °F 54.0 °F 87% 29.85 in 10.0 mi South 10.4 mph - N/A   Clear
10:37 PM 57.2 °F 53.6 °F 88% 29.88 in 10.0 mi SSW 13.8 mph - N/A   Scattered Clouds
10:54 PM 57.0 °F 54.0 °F 89% 29.86 in 10.0 mi SSW 12.7 mph - N/A   Scattered Clouds
11:54 PM 55.9 °F 53.1 °F 90% 29.86 in 10.0 mi SSW 15.0 mph - N/A   Scattered Clouds