Napa County, CA

7:15 AM PST on December 17, 2017 (GMT -0800)
Napa County

Weather History for KAPC - December, 2013

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Sunday, December 15, 2013

  Actual Average Record
Temperature  
Mean Temperature 45 °F 46 °F  
Max Temperature 62 °F 55 °F 64 °F (1998)
Min Temperature 28 °F 36 °F 26 °F (2005)
Degree Days  
Heating Degree Days 20    
Month to date heating degree days 374  
Since 1 July heating degree days 1053  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 303  
Moisture  
Dew Point 32 °F    
Average Humidity 64    
Maximum Humidity 92    
Minimum Humidity 36    
Precipitation  
Precipitation 0.00 in - 1.85 in (1977)
Month to date precipitation 0.47  
Year to date precipitation 4.17  
Since 1 July precipitation 2.20  
Sea Level Pressure  
Sea Level Pressure 30.30 in    
Wind  
Wind Speed 5 mph (NE)    
Max Wind Speed 14 mph    
Max Gust Speed 25 mph    
Visibility 8 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. 15, 2013 Rise Set
Actual Time 7:18 AM PST 4:50 PM PST
Civil Twilight 6:49 AM PST 5:19 PM PST
Nautical Twilight 6:16 AM PST 5:52 PM PST
Astronomical Twilight 5:43 AM PST 6:25 PM PST
Moon 3:57 PM PST (12/15) 5:40 AM PST (12/15)
Length of Visible Light 10h 30m
Length of Day
9h 31m
Waxing Gibbous, 98% of the Moon is Illuminated
Dec 15
Waxing Gibbous
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 36.0 °F 32.1 °F 30.9 °F 82% 30.35 in 8.0 mi NNE 4.6 mph - N/A   Clear
1:54 AM 37.0 °F 33.3 °F 32.0 °F 82% 30.34 in 10.0 mi North 4.6 mph - N/A   Clear
2:54 AM 35.1 °F 29.3 °F 30.9 °F 85% 30.33 in 10.0 mi NNE 6.9 mph - N/A   Clear
3:54 AM 32.0 °F 27.5 °F 28.9 °F 88% 30.34 in 9.0 mi NNW 4.6 mph - N/A   Clear
4:54 AM 30.9 °F - 28.9 °F 92% 30.33 in 4.0 mi Calm Calm - N/A   Clear
5:52 AM 28.4 °F - 26.6 °F 93% 30.35 in 1.8 mi Calm Calm - N/A   Clear
5:54 AM 30.0 °F - 27.0 °F 88% 30.32 in 1.5 mi Calm Calm - N/A   Clear
6:11 AM 28.4 °F - 26.6 °F 93% 30.34 in 2.0 mi Calm Calm - N/A   Clear
6:20 AM 28.4 °F 24.6 °F 28.4 °F 100% 30.35 in 7.0 mi NNW 3.5 mph - N/A   Clear
6:54 AM 30.0 °F - 28.9 °F 96% 30.33 in 10.0 mi Calm Calm - N/A   Clear
7:52 AM 30.2 °F 26.7 °F 28.4 °F 93% 30.36 in 2.5 mi North 3.5 mph - N/A   Clear
7:54 AM 30.9 °F 27.5 °F 28.9 °F 92% 30.33 in 2.5 mi North 3.5 mph - N/A   Clear
8:01 AM 32.0 °F 27.5 °F 30.2 °F 93% 30.36 in 10.0 mi NNW 4.6 mph - N/A   Clear
8:54 AM 42.1 °F - 37.0 °F 82% 30.35 in 9.0 mi Calm Calm - N/A   Clear
9:54 AM 48.9 °F - 34.0 °F 56% 30.35 in 10.0 mi East 6.9 mph - N/A   Clear
10:54 AM 52.0 °F - 34.0 °F 50% 30.33 in 10.0 mi East 8.1 mph - N/A   Clear
11:54 AM 55.9 °F - 36.0 °F 47% 30.30 in 10.0 mi East 11.5 mph - N/A   Clear
12:54 PM 59.0 °F - 36.0 °F 42% 30.28 in 10.0 mi East 9.2 mph - N/A   Clear
1:54 PM 61.0 °F - 36.0 °F 39% 30.25 in 10.0 mi East 9.2 mph - N/A   Clear
2:54 PM 62.1 °F - 36.0 °F 38% 30.24 in 10.0 mi ESE 10.4 mph - N/A   Clear
3:54 PM 55.9 °F - 37.9 °F 51% 30.23 in 10.0 mi South 4.6 mph - N/A   Clear
4:54 PM 50.0 °F - 37.9 °F 63% 30.23 in 9.0 mi SE 4.6 mph - N/A   Clear
5:54 PM 48.0 °F - 36.0 °F 63% 30.23 in 10.0 mi SSE 8.1 mph - N/A   Clear
6:54 PM 46.9 °F - 36.0 °F 66% 30.23 in 9.0 mi Calm Calm - N/A   Clear
7:54 PM 39.9 °F - 34.0 °F 79% 30.24 in 10.0 mi Calm Calm - N/A   Clear
8:54 PM 37.0 °F 33.3 °F 33.1 °F 86% 30.24 in 9.0 mi North 4.6 mph - N/A   Clear
9:54 PM 36.0 °F - 32.0 °F 86% 30.24 in 9.0 mi Calm Calm - N/A   Clear
10:54 PM 35.1 °F 31.0 °F 32.0 °F 89% 30.24 in 10.0 mi North 4.6 mph - N/A   Clear
11:54 PM 39.9 °F 37.8 °F 35.1 °F 83% 30.23 in 10.0 mi North 3.5 mph - N/A   Clear