American Canyon, CA

6:28 PM PST on December 09, 2016 (GMT -0800)
Napa County

Weather History for KAPC - December, 2013

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Monday, December 9, 2013

  Actual Average Record
Temperature  
Mean Temperature 34 °F 46 °F  
Max Temperature 49 °F 56 °F 70 °F (2012)
Min Temperature 19 °F 36 °F 19 °F (2013)
Degree Days  
Heating Degree Days 31    
Month to date heating degree days 232  
Since 1 July heating degree days 911  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 303  
Moisture  
Dew Point 19 °F    
Average Humidity 55    
Maximum Humidity 84    
Minimum Humidity 26    
Precipitation  
Precipitation 0.00 in - 2.05 in (1992)
Month to date precipitation 0.47  
Year to date precipitation 4.17  
Since 1 July precipitation 2.20  
Sea Level Pressure  
Sea Level Pressure 30.36 in    
Wind  
Wind Speed 5 mph (East)    
Max Wind Speed 17 mph    
Max Gust Speed 22 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Dec. 09, 2013 Rise Set
Actual Time 7:14 AM PST 4:48 PM PST
Civil Twilight 6:44 AM PST 5:18 PM PST
Nautical Twilight 6:11 AM PST 5:51 PM PST
Astronomical Twilight 5:39 AM PST 6:23 PM PST
Moon 12:15 PM PST (12/9) No Moon Set
Length of Visible Light 10h 33m
Length of Day
9h 34m
First Quarter, 52% of the Moon is Illuminated
Dec 9
First Quarter
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 21.9 °F 17.2 °F 16.0 °F 78% 30.30 in 10.0 mi NW 3.5 mph - N/A   Clear
1:54 AM 21.9 °F 17.2 °F 17.1 °F 82% 30.30 in 10.0 mi East 3.5 mph - N/A   Clear
2:54 AM 21.9 °F 17.2 °F 18.0 °F 85% 30.31 in 10.0 mi ESE 3.5 mph - N/A   Clear
3:54 AM 24.1 °F - 18.0 °F 77% 30.31 in 10.0 mi Calm Calm - N/A   Clear
4:54 AM 23.0 °F 18.4 °F 18.0 °F 81% 30.31 in 10.0 mi North 3.5 mph - N/A   Clear
5:54 AM 21.0 °F - 16.0 °F 81% 30.32 in 10.0 mi Calm Calm - N/A   Clear
6:54 AM 21.0 °F - 15.1 °F 78% 30.34 in 10.0 mi Calm Calm - N/A   Clear
7:54 AM 23.0 °F - 17.1 °F 78% 30.35 in 10.0 mi Calm Calm - N/A   Clear
8:54 AM 32.0 °F - 23.0 °F 69% 30.37 in 10.0 mi Calm Calm - N/A   Clear
9:54 AM 39.9 °F 35.8 °F 21.0 °F 47% 30.39 in 10.0 mi Variable 5.8 mph - N/A   Clear
10:54 AM 43.0 °F 36.0 °F 19.9 °F 40% 30.38 in 10.0 mi East 13.8 mph - N/A   Clear
11:54 AM 46.0 °F 40.6 °F 18.0 °F 33% 30.37 in 10.0 mi ESE 11.5 mph - N/A   Clear
12:54 PM 48.0 °F - 18.0 °F 30% 30.36 in 10.0 mi East 15.0 mph - N/A   Clear
1:54 PM 48.0 °F - 16.0 °F 28% 30.34 in 10.0 mi East 12.7 mph 19.6 mph N/A   Clear
2:54 PM 48.9 °F - 16.0 °F 27% 30.34 in 10.0 mi ESE 12.7 mph 19.6 mph N/A   Clear
3:54 PM 46.9 °F - 15.1 °F 28% 30.35 in 10.0 mi East 12.7 mph - N/A   Clear
4:54 PM 42.1 °F 37.1 °F 23.0 °F 47% 30.36 in 10.0 mi East 8.1 mph - N/A   Clear
5:54 PM 41.0 °F 37.1 °F 24.1 °F 51% 30.36 in 10.0 mi East 5.8 mph - N/A   Clear
6:54 PM 37.9 °F 33.5 °F 21.9 °F 53% 30.37 in 10.0 mi NE 5.8 mph - N/A   Clear
7:54 PM 37.0 °F 34.5 °F 21.9 °F 54% 30.38 in 10.0 mi NE 3.5 mph - N/A   Clear
8:54 PM 27.0 °F - 19.9 °F 75% 30.40 in 10.0 mi Calm Calm - N/A   Clear
9:54 PM 30.0 °F - 21.9 °F 72% 30.40 in 10.0 mi Calm Calm - N/A   Clear
10:54 PM 27.0 °F - 21.9 °F 81% 30.42 in 10.0 mi Calm Calm - N/A   Clear
11:54 PM 27.0 °F - 19.9 °F 75% 30.40 in 10.0 mi Calm Calm - N/A   Clear