American Canyon, CA

7:39 AM PST on February 23, 2017 (GMT -0800)
Napa County

Weather History for KAPC - December, 2012

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Monday, December 10, 2012

  Actual Average Record
Temperature  
Mean Temperature 52 °F 46 °F  
Max Temperature 63 °F 56 °F 63 °F (2012)
Min Temperature 40 °F 36 °F 21 °F (2013)
Degree Days  
Heating Degree Days 13    
Month to date heating degree days 123  
Since 1 July heating degree days 695  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 204  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 43 °F    
Average Humidity 74    
Maximum Humidity 92    
Minimum Humidity 56    
Precipitation  
Precipitation 0.00 in - 2.02 in (1937)
Month to date precipitation 1.72  
Year to date precipitation 19.10  
Since 1 July precipitation 5.33  
Sea Level Pressure  
Sea Level Pressure 30.15 in    
Wind  
Wind Speed 2 mph (NW)    
Max Wind Speed 9 mph    
Max Gust Speed 16 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. 10, 2012 Rise Set
Actual Time 7:15 AM PST 4:49 PM PST
Civil Twilight 6:45 AM PST 5:18 PM PST
Nautical Twilight 6:12 AM PST 5:51 PM PST
Astronomical Twilight 5:40 AM PST 6:23 PM PST
Moon 4:06 AM PST (12/10) 2:41 PM PST (12/10)
Length of Visible Light 10h 32m
Length of Day
9h 33m
Waning Crescent, 9% of the Moon is Illuminated
Dec 10
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last 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 44.1 °F - 39.9 °F 85% 30.16 in 10.0 mi Calm Calm - N/A   Clear
1:54 AM 42.1 °F - 39.0 °F 89% 30.18 in 10.0 mi Calm Calm - N/A   Clear
2:54 AM 44.1 °F - 39.9 °F 85% 30.17 in 10.0 mi Calm Calm - N/A   Clear
4:54 AM 48.9 °F - 42.1 °F 77% 30.17 in 10.0 mi SE 5.8 mph - N/A   Clear
5:54 AM 46.0 °F - 41.0 °F 83% 30.18 in 10.0 mi Calm Calm - N/A   Clear
6:54 AM 43.0 °F - 39.0 °F 86% 30.19 in 10.0 mi Calm Calm - N/A   Clear
7:54 AM 41.0 °F - 37.9 °F 89% 30.20 in 10.0 mi Calm Calm - N/A   Clear
8:54 AM 52.0 °F - 44.1 °F 74% 30.20 in 10.0 mi Calm Calm - N/A   Clear
9:54 AM 54.0 °F - 45.0 °F 72% 30.22 in 10.0 mi West 3.5 mph - N/A   Clear
10:54 AM 57.9 °F - 46.9 °F 67% 30.22 in 10.0 mi Calm Calm - N/A   Clear
11:54 AM 60.1 °F - 46.0 °F 60% 30.19 in 10.0 mi West 4.6 mph - N/A   Clear
12:54 PM 62.1 °F - 46.9 °F 58% 30.16 in 10.0 mi Calm Calm - N/A   Clear
1:54 PM 62.1 °F - 48.9 °F 62% 30.14 in 10.0 mi SW 8.1 mph - N/A   Clear
2:54 PM 62.1 °F - 48.0 °F 60% 30.13 in 10.0 mi SW 4.6 mph - N/A   Clear
3:54 PM 62.1 °F - 48.0 °F 60% 30.11 in 10.0 mi Calm Calm - N/A   Clear
4:54 PM 55.9 °F - 46.9 °F 72% 30.11 in 10.0 mi East 4.6 mph - N/A   Clear
5:54 PM 54.0 °F - 46.0 °F 75% 30.10 in 10.0 mi Calm Calm - N/A   Clear
6:54 PM 48.9 °F - 44.1 °F 83% 30.10 in 10.0 mi Calm Calm - N/A   Clear
7:54 PM 45.0 °F 43.5 °F 42.1 °F 90% 30.12 in 10.0 mi Variable 3.5 mph - N/A   Clear
8:54 PM 45.0 °F - 43.0 °F 93% 30.11 in 10.0 mi Calm Calm - N/A   Clear
9:54 PM 42.1 °F 40.2 °F 39.0 °F 89% 30.10 in 10.0 mi NNE 3.5 mph - N/A   Clear
10:54 PM 42.1 °F 40.2 °F 39.9 °F 92% 30.10 in 10.0 mi North 3.5 mph - N/A   Clear
11:54 PM 42.1 °F 39.2 °F 39.0 °F 89% 30.09 in 10.0 mi North 4.6 mph - N/A   Clear