Weather History for Hayward, CA

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Thursday, December 27, 2012

  Actual Average Record
Temperature  
Mean Temperature 48 °F 49 °F  
Max Temperature 54 °F 57 °F 66 °F (1999)
Min Temperature 41 °F 42 °F 35 °F (1997)
Degree Days  
Heating Degree Days 17    
Month to date heating degree days 362  
Since 1 July heating degree days 790  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 191  
Moisture  
Dew Point 39 °F    
Average Humidity 74    
Maximum Humidity 89    
Minimum Humidity 59    
Precipitation  
Precipitation 0.00 in - 1.24 in (2004)
Month to date precipitation 2.84  
Year to date precipitation 15.07  
Since 1 July precipitation 5.95  
Sea Level Pressure  
Sea Level Pressure 30.17 in    
Wind  
Wind Speed 4 mph (NNW)    
Max Wind Speed 10 mph    
Max Gust Speed 13 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. 27, 2012 Rise Set
Actual Time 7:22 AM PST 4:57 PM PST
Civil Twilight 6:53 AM PST 5:26 PM PST
Nautical Twilight 6:20 AM PST 5:59 PM PST
Astronomical Twilight 5:48 AM PST 6:31 PM PST
Moon 4:44 PM PST (12/27) 6:38 AM PST (12/27)
Length of Visible Light 10h 33m
Length of Day
9h 34m
Full, 100% of the Moon is Illuminated
Dec 27
Full
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
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 44.1 °F - 39.9 °F 85% 30.13 in 10.0 mi Calm Calm - N/A   Clear
1:54 AM 42.1 °F - 39.9 °F 92% 30.14 in 10.0 mi Calm Calm - N/A   Clear
2:54 AM 43.0 °F - 39.9 °F 89% 30.14 in 10.0 mi Calm Calm - N/A   Clear
3:54 AM 43.0 °F 41.3 °F 39.0 °F 86% 30.13 in 10.0 mi ENE 3.5 mph - N/A   Partly Cloudy
4:54 AM 43.0 °F - 39.9 °F 89% 30.14 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:54 AM 43.0 °F - 39.0 °F 86% 30.14 in 10.0 mi Calm Calm - N/A   Clear
6:54 AM 43.0 °F - 39.0 °F 86% 30.16 in 10.0 mi Calm Calm - N/A   Clear
7:54 AM 42.1 °F - 39.0 °F 89% 30.17 in 10.0 mi Calm Calm - N/A   Clear
8:54 AM 46.0 °F 44.8 °F 41.0 °F 83% 30.18 in 10.0 mi ENE 3.5 mph - N/A   Clear
9:54 AM 50.0 °F - 39.0 °F 66% 30.19 in 10.0 mi NNW 4.6 mph - N/A   Clear
10:54 AM 51.1 °F - 39.9 °F 66% 30.19 in 10.0 mi WNW 5.8 mph - N/A   Clear
11:54 AM 51.1 °F - 39.9 °F 66% 30.17 in 10.0 mi West 5.8 mph - N/A   Clear
12:54 PM 52.0 °F - 39.9 °F 63% 30.16 in 10.0 mi West 10.4 mph - N/A   Clear
1:54 PM 53.1 °F - 39.0 °F 59% 30.15 in 10.0 mi WNW 8.1 mph - N/A   Clear
2:54 PM 53.1 °F - 39.0 °F 59% 30.15 in 10.0 mi WNW 8.1 mph - N/A   Clear
3:54 PM 53.1 °F - 39.9 °F 61% 30.15 in 10.0 mi West 5.8 mph - N/A   Clear
4:54 PM 51.1 °F - 41.0 °F 68% 30.16 in 10.0 mi West 3.5 mph - N/A   Clear
5:54 PM 48.0 °F - 41.0 °F 77% 30.17 in 10.0 mi WNW 3.5 mph - N/A   Clear
6:54 PM 46.9 °F - 39.9 °F 77% 30.18 in 10.0 mi East 3.5 mph - N/A   Clear
7:54 PM 45.0 °F 41.8 °F 37.9 °F 76% 30.18 in 10.0 mi ENE 5.8 mph - N/A   Clear
8:54 PM 44.1 °F 40.8 °F 37.9 °F 79% 30.19 in 10.0 mi ENE 5.8 mph - N/A   Clear
9:54 PM 43.0 °F 39.5 °F 37.0 °F 80% 30.20 in 10.0 mi ENE 5.8 mph - N/A   Clear
10:54 PM 42.1 °F - 37.0 °F 82% 30.21 in 10.0 mi Calm Calm - N/A   Clear
11:54 PM 42.1 °F 39.2 °F 37.0 °F 82% 30.21 in 10.0 mi ENE 4.6 mph - N/A   Clear