Weather History for Hayward, CA

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Wednesday, December 19, 2012

  Actual Average Record
Temperature  
Mean Temperature 44 °F 50 °F  
Max Temperature 54 °F 57 °F 74 °F (1999)
Min Temperature 33 °F 42 °F 31 °F (2006)
Degree Days  
Heating Degree Days 21    
Month to date heating degree days 243  
Since 1 July heating degree days 671  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 191  
Moisture  
Dew Point 28 °F    
Average Humidity 53    
Maximum Humidity 82    
Minimum Humidity 24    
Precipitation  
Precipitation 0.00 in - 1.34 in (2010)
Month to date precipitation 1.26  
Year to date precipitation 13.49  
Since 1 July precipitation 4.37  
Sea Level Pressure  
Sea Level Pressure 30.29 in    
Wind  
Wind Speed 3 mph (ENE)    
Max Wind Speed 8 mph    
Max Gust Speed 10 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

Dec. 19, 2012 Rise Set
Actual Time 7:19 AM PST 4:52 PM PST
Civil Twilight 6:49 AM PST 5:22 PM PST
Nautical Twilight 6:16 AM PST 5:55 PM PST
Astronomical Twilight 5:44 AM PST 6:26 PM PST
Moon 11:38 AM PST (12/19) No Moon Set
Length of Visible Light 10h 32m
Length of Day
9h 33m
Waxing Crescent, 46% of the Moon is Illuminated
Dec 19
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

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 28.9 °F 76% 30.24 in 10.0 mi East 4.6 mph - N/A   Clear
1:54 AM 37.0 °F 34.5 °F 30.0 °F 76% 30.24 in 10.0 mi ENE 3.5 mph - N/A   Clear
2:54 AM 36.0 °F 31.1 °F 28.9 °F 76% 30.26 in 10.0 mi ENE 5.8 mph - N/A   Clear
3:54 AM 35.1 °F 32.2 °F 28.0 °F 76% 30.27 in 10.0 mi ENE 3.5 mph - N/A   Clear
4:54 AM 34.0 °F 29.8 °F 28.0 °F 79% 30.27 in 10.0 mi ENE 4.6 mph - N/A   Clear
5:54 AM 34.0 °F 29.8 °F 28.0 °F 79% 30.30 in 10.0 mi ENE 4.6 mph - N/A   Clear
6:54 AM 33.1 °F - 27.0 °F 78% 30.32 in 10.0 mi Calm Calm - N/A   Clear
7:54 AM 35.1 °F 29.3 °F 28.0 °F 76% 30.33 in 10.0 mi ENE 6.9 mph - N/A   Clear
8:54 AM 41.0 °F - 30.0 °F 65% 30.35 in 10.0 mi Calm Calm - N/A   Clear
9:54 AM 44.1 °F 41.5 °F 32.0 °F 63% 30.35 in 10.0 mi SSE 4.6 mph - N/A   Clear
10:54 AM 46.9 °F - 32.0 °F 56% 30.35 in 10.0 mi Calm Calm - N/A   Clear
11:54 AM 48.9 °F - 28.9 °F 46% 30.34 in 10.0 mi Calm Calm - N/A   Clear
12:54 PM 51.1 °F - 28.9 °F 43% 30.32 in 10.0 mi Calm Calm - N/A   Clear
1:54 PM 52.0 °F - 30.0 °F 43% 30.31 in 10.0 mi Variable 3.5 mph - N/A   Clear
2:54 PM 53.1 °F - 17.1 °F 24% 30.29 in 10.0 mi Calm Calm - N/A   Clear
3:54 PM 53.1 °F - 21.9 °F 30% 30.27 in 10.0 mi Calm Calm - N/A   Clear
4:54 PM 50.0 °F - 21.0 °F 32% 30.27 in 10.0 mi Calm Calm - N/A   Clear
5:54 PM 48.0 °F - 27.0 °F 44% 30.27 in 10.0 mi ENE 4.6 mph - N/A   Clear
6:54 PM 45.0 °F 42.6 °F 28.0 °F 52% 30.27 in 10.0 mi ENE 4.6 mph - N/A   Clear
7:54 PM 44.1 °F 42.5 °F 28.0 °F 53% 30.26 in 10.0 mi ENE 3.5 mph - N/A   Clear
8:54 PM 42.1 °F 40.2 °F 28.0 °F 58% 30.27 in 10.0 mi ENE 3.5 mph - N/A   Clear
9:54 PM 39.9 °F 36.7 °F 28.9 °F 65% 30.27 in 10.0 mi ENE 4.6 mph - N/A   Clear
10:54 PM 39.0 °F 34.8 °F 28.9 °F 67% 30.27 in 10.0 mi ENE 5.8 mph - N/A   Clear
11:54 PM 37.0 °F 34.5 °F 28.0 °F 70% 30.26 in 10.0 mi ENE 3.5 mph - N/A   Clear