Weather History for Concord, CA

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Saturday, December 8, 2012

  Actual Average Record
Temperature  
Mean Temperature 49 °F 48 °F  
Max Temperature 58 °F 56 °F 66 °F (1996)
Min Temperature 39 °F 40 °F 28 °F (2013)
Degree Days  
Heating Degree Days 16    
Month to date heating degree days 92  
Since 1 July heating degree days 473  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 791  
Moisture  
Dew Point 41 °F    
Average Humidity 74    
Maximum Humidity 100    
Minimum Humidity 47    
Precipitation  
Precipitation 0.00 in - 0.64 in (2010)
Month to date precipitation 2.39  
Year to date precipitation 16.62  
Since 1 July precipitation 6.95  
Sea Level Pressure  
Sea Level Pressure 30.06 in    
Wind  
Wind Speed 2 mph (East)    
Max Wind Speed 9 mph    
Max Gust Speed 12 mph    
Visibility 6 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 08, 2012 Rise Set
Actual Time 7:12 AM PST 4:48 PM PST
Civil Twilight 6:42 AM PST 5:17 PM PST
Nautical Twilight 6:10 AM PST 5:50 PM PST
Astronomical Twilight 5:38 AM PST 6:22 PM PST
Moon 1:47 AM PST (12/8) 1:18 PM PST (12/8)
Length of Visible Light 10h 35m
Length of Day
9h 36m
Waning Crescent, 27% of the Moon is Illuminated
Dec 8
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
12:22 AM 41.0 °F - 41.0 °F 100% 30.10 in 7.0 mi Calm Calm - N/A   Scattered Clouds
12:35 AM 41.0 °F - 39.2 °F 93% 30.10 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
12:53 AM 42.1 °F 40.2 °F 41.0 °F 96% 30.05 in 6.0 mi SE 3.5 mph - N/A   Mostly Cloudy
1:21 AM 39.2 °F - 39.2 °F 100% 30.09 in 7.0 mi Calm Calm - N/A   Scattered Clouds
1:53 AM 39.9 °F - 39.0 °F 97% 30.05 in 6.0 mi Calm Calm - N/A   Mostly Cloudy
2:18 AM 39.2 °F - 39.2 °F 100% 30.09 in 1.8 mi Calm Calm - N/A   Overcast
2:25 AM 39.2 °F - 39.2 °F 100% 30.09 in 0.5 mi Calm Calm - N/A Fog Fog
3:53 AM 39.9 °F - 39.9 °F 100% 30.04 in 0.2 mi Calm Calm - 0.01 in Fog Fog
4:25 AM 41.0 °F - 41.0 °F 100% 30.09 in 0.8 mi Calm Calm - N/A   Mist
4:39 AM 41.0 °F - 41.0 °F 100% 30.09 in 0.2 mi Calm Calm - N/A Fog Fog
4:53 AM 41.0 °F - 41.0 °F 100% 30.04 in 0.2 mi Calm Calm - N/A Fog Fog
5:53 AM 41.0 °F 39.0 °F 41.0 °F 100% 30.04 in 0.2 mi South 3.5 mph - N/A Fog Fog
6:53 AM 39.9 °F - 39.9 °F 100% 30.05 in 0.2 mi Calm Calm - N/A Fog Fog
7:53 AM 39.9 °F - 39.9 °F 100% 30.05 in 0.5 mi Calm Calm - N/A Fog Fog
8:00 AM 41.0 °F - 41.0 °F 100% 30.09 in 1.5 mi Calm Calm - N/A   Scattered Clouds
8:08 AM 41.0 °F 39.0 °F 41.0 °F 100% 30.09 in 0.8 mi SE 3.5 mph - N/A   Mist
8:18 AM 42.8 °F - 42.8 °F 100% 30.10 in 0.5 mi Calm Calm - N/A Fog Fog
8:51 AM 42.8 °F - 42.8 °F 100% 30.11 in 1.0 mi Calm Calm - N/A   Mist
8:53 AM 43.0 °F - 43.0 °F 100% 30.07 in 8.0 mi Calm Calm - N/A Fog Patches of Fog
9:53 AM 48.9 °F - 44.1 °F 83% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 53.1 °F - 41.0 °F 64% 30.09 in 10.0 mi North 3.5 mph - N/A   Clear
11:53 AM 53.1 °F - 37.9 °F 57% 30.07 in 10.0 mi ENE 8.1 mph - N/A   Clear
12:53 PM 55.0 °F - 39.0 °F 55% 30.04 in 10.0 mi East 3.5 mph - N/A   Clear
1:53 PM 57.0 °F - 39.0 °F 51% 30.01 in 10.0 mi North 3.5 mph - N/A   Clear
2:53 PM 57.0 °F - 37.9 °F 49% 30.01 in 10.0 mi Calm Calm - N/A   Clear
3:53 PM 54.0 °F - 42.1 °F 64% 30.01 in 10.0 mi NNW 3.5 mph - N/A   Mostly Cloudy
4:53 PM 53.1 °F - 43.0 °F 69% 30.01 in 10.0 mi Calm Calm - N/A   Clear
5:53 PM 52.0 °F - 42.1 °F 69% 30.01 in 10.0 mi Calm Calm - N/A   Clear
6:53 PM 48.0 °F - 43.0 °F 83% 30.03 in 10.0 mi ESE 3.5 mph - N/A   Clear
7:53 PM 48.0 °F - 42.1 °F 80% 30.03 in 10.0 mi Calm Calm - N/A   Clear
8:53 PM 46.9 °F - 42.1 °F 83% 30.04 in 10.0 mi SE 3.5 mph - N/A   Clear
9:53 PM 45.0 °F - 42.1 °F 90% 30.04 in 10.0 mi Calm Calm - N/A   Clear
10:53 PM 44.1 °F - 41.0 °F 89% 30.05 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 42.1 °F - 39.9 °F 92% 30.07 in 8.0 mi Calm Calm - N/A   Clear