Weather History for Hayward, CA

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Saturday, December 15, 2012

  Actual Average Record
Temperature  
Mean Temperature 44 °F 50 °F  
Max Temperature 50 °F 57 °F 68 °F (1998)
Min Temperature 37 °F 42 °F 35 °F (2013)
Degree Days  
Heating Degree Days 21    
Month to date heating degree days 178  
Since 1 July heating degree days 606  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 191  
Moisture  
Dew Point 40 °F    
Average Humidity 82    
Maximum Humidity 92    
Minimum Humidity 71    
Precipitation  
Precipitation 0.05 in - 0.24 in (2002)
Month to date precipitation 1.14  
Year to date precipitation 13.37  
Since 1 July precipitation 4.25  
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 5 mph (East)    
Max Wind Speed 12 mph    
Max Gust Speed 15 mph    
Visibility 9 miles    
Events Rain    
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. 15, 2012 Rise Set
Actual Time 7:16 AM PST 4:51 PM PST
Civil Twilight 6:47 AM PST 5:20 PM PST
Nautical Twilight 6:14 AM PST 5:53 PM PST
Astronomical Twilight 5:42 AM PST 6:25 PM PST
Moon 9:15 AM PST (12/15) 7:59 PM PST (12/15)
Length of Visible Light 10h 33m
Length of Day
9h 34m
Waxing Crescent, 9% of the Moon is Illuminated
Dec 15
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 41.0 °F 36.4 °F 37.0 °F 86% 30.07 in 10.0 mi East 6.9 mph - N/A   Clear
1:54 AM 39.9 °F 35.8 °F 36.0 °F 86% 30.08 in 10.0 mi ENE 5.8 mph - N/A   Clear
2:54 AM 39.0 °F 34.0 °F 36.0 °F 89% 30.08 in 10.0 mi ENE 6.9 mph - N/A   Clear
3:54 AM 37.9 °F 35.5 °F 36.0 °F 93% 30.07 in 10.0 mi East 3.5 mph - N/A   Clear
4:54 AM 39.0 °F 35.7 °F 36.0 °F 89% 30.06 in 10.0 mi ENE 4.6 mph - N/A   Clear
5:54 AM 37.9 °F 35.5 °F 36.0 °F 93% 30.07 in 10.0 mi ENE 3.5 mph - N/A   Clear
6:54 AM 39.0 °F - 36.0 °F 89% 30.06 in 10.0 mi Calm Calm - N/A   Clear
7:54 AM 39.0 °F 34.8 °F 36.0 °F 89% 30.09 in 10.0 mi East 5.8 mph - N/A   Scattered Clouds
8:54 AM 43.0 °F 41.3 °F 37.9 °F 82% 30.12 in 10.0 mi East 3.5 mph - N/A   Overcast
9:54 AM 45.0 °F 42.6 °F 39.0 °F 80% 30.12 in 10.0 mi ESE 4.6 mph - N/A   Overcast
10:54 AM 48.9 °F - 41.0 °F 74% 30.11 in 10.0 mi SSE 5.8 mph - N/A   Mostly Cloudy
11:54 AM 50.0 °F - 41.0 °F 71% 30.08 in 10.0 mi SE 8.1 mph - N/A   Overcast
12:54 PM 50.0 °F - 41.0 °F 71% 30.08 in 10.0 mi SSE 3.5 mph - 0.00 in Rain Light Rain
1:54 PM 48.0 °F - 43.0 °F 83% 30.06 in 5.0 mi SSE 3.5 mph - 0.02 in Rain Light Rain
2:54 PM 48.0 °F - 44.1 °F 86% 30.04 in 6.0 mi SSE 6.9 mph - 0.03 in Rain Light Rain
3:54 PM 48.0 °F - 45.0 °F 89% 30.05 in 6.0 mi ESE 5.8 mph - 0.00 in Rain Light Rain
4:54 PM 48.0 °F - 44.1 °F 86% 30.05 in 10.0 mi SE 6.9 mph - 0.00 in Rain Light Rain
5:54 PM 46.9 °F - 44.1 °F 90% 30.06 in 9.0 mi East 6.9 mph - 0.00 in   Overcast
6:54 PM 46.9 °F - 42.1 °F 83% 30.05 in 10.0 mi ENE 8.1 mph - N/A   Overcast
7:54 PM 46.9 °F - 42.1 °F 83% 30.04 in 10.0 mi East 3.5 mph - N/A   Overcast
8:54 PM 46.9 °F - 42.1 °F 83% 30.04 in 10.0 mi East 4.6 mph - N/A   Overcast
9:54 PM 48.0 °F - 42.1 °F 80% 30.07 in 10.0 mi NE 3.5 mph - N/A   Overcast
10:54 PM 46.9 °F - 42.1 °F 83% 30.09 in 10.0 mi ENE 6.9 mph - N/A   Overcast
11:54 PM 46.9 °F - 42.1 °F 83% 30.09 in 10.0 mi ENE 3.5 mph - N/A   Overcast