Weather History for Hayward, CA

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Sunday, December 16, 2012

  Actual Average Record
Temperature  
Mean Temperature 52 °F 50 °F  
Max Temperature 57 °F 57 °F 70 °F (1998)
Min Temperature 46 °F 42 °F 34 °F (2013)
Degree Days  
Heating Degree Days 13    
Month to date heating degree days 191  
Since 1 July heating degree days 619  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 46 °F    
Average Humidity 79    
Maximum Humidity 86    
Minimum Humidity 71    
Precipitation  
Precipitation T in - 1.20 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 30.08 in    
Wind  
Wind Speed 5 mph (SSE)    
Max Wind Speed 14 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 16, 2012 Rise Set
Actual Time 7:17 AM PST 4:51 PM PST
Civil Twilight 6:48 AM PST 5:20 PM PST
Nautical Twilight 6:15 AM PST 5:53 PM PST
Astronomical Twilight 5:43 AM PST 6:25 PM PST
Moon 9:57 AM PST (12/16) 9:08 PM PST (12/16)
Length of Visible Light 10h 32m
Length of Day
9h 34m
Waxing Crescent, 17% of the Moon is Illuminated
Dec 16
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 46.9 °F 42.1 °F 83% 30.08 in 10.0 mi ENE 4.6 mph - N/A   Overcast
1:54 AM 46.9 °F 42.1 °F 83% 30.09 in 10.0 mi ENE 3.5 mph - N/A   Overcast
2:54 AM 46.9 °F 42.1 °F 83% 30.09 in 10.0 mi Calm Calm - N/A   Overcast
3:54 AM 48.0 °F 42.1 °F 80% 30.09 in 10.0 mi NNE 3.5 mph - N/A   Overcast
5:54 AM 48.0 °F 42.1 °F 80% 30.10 in 10.0 mi North 4.6 mph - N/A   Overcast
6:54 AM 46.9 °F 42.1 °F 83% 30.11 in 10.0 mi Calm Calm - N/A   Overcast
7:54 AM 46.9 °F 42.1 °F 83% 30.11 in 10.0 mi ENE 5.8 mph - N/A   Overcast
8:54 AM 48.9 °F 43.0 °F 80% 30.13 in 10.0 mi ENE 4.6 mph - N/A   Mostly Cloudy
9:54 AM 51.1 °F 44.1 °F 77% 30.14 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:54 AM 54.0 °F 44.1 °F 69% 30.13 in 10.0 mi SE 4.6 mph - N/A   Mostly Cloudy
11:54 AM 54.0 °F 46.0 °F 75% 30.12 in 10.0 mi WSW 3.5 mph - N/A   Overcast
12:54 PM 54.0 °F 46.0 °F 75% 30.10 in 10.0 mi Calm Calm - N/A   Overcast
1:38 PM 55.4 °F 46.4 °F 72% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
1:54 PM 55.0 °F 46.0 °F 72% 30.08 in 10.0 mi Calm Calm - N/A   Overcast
2:01 PM 55.4 °F 46.4 °F 72% 30.05 in 10.0 mi Calm Calm - N/A   Overcast
2:37 PM 55.4 °F 46.4 °F 72% 30.04 in 10.0 mi South 4.6 mph - N/A   Overcast
2:54 PM 55.9 °F 46.0 °F 69% 30.06 in 10.0 mi SSE 4.6 mph - N/A   Overcast
3:54 PM 57.0 °F 48.0 °F 72% 30.06 in 10.0 mi South 5.8 mph - N/A   Overcast
4:54 PM 57.0 °F 48.0 °F 72% 30.06 in 10.0 mi South 6.9 mph - N/A   Overcast
5:54 PM 55.9 °F 48.0 °F 75% 30.07 in 10.0 mi South 5.8 mph - N/A   Overcast
6:54 PM 55.9 °F 48.9 °F 77% 30.08 in 10.0 mi South 5.8 mph - N/A   Overcast
7:54 PM 55.9 °F 50.0 °F 80% 30.08 in 9.0 mi SSW 5.8 mph - N/A   Overcast
8:54 PM 55.9 °F 51.1 °F 84% 30.08 in 10.0 mi South 9.2 mph - 0.00 in   Overcast
9:09 PM 55.4 °F 51.8 °F 88% 30.05 in 10.0 mi South 10.4 mph - N/A   Overcast
9:39 PM 55.4 °F 51.8 °F 88% 30.06 in 10.0 mi South 5.8 mph - N/A   Overcast
9:54 PM 55.9 °F 51.1 °F 84% 30.09 in 10.0 mi South 5.8 mph - N/A   Overcast
10:20 PM 55.4 °F 51.8 °F 88% 30.04 in 10.0 mi South 10.4 mph - N/A   Overcast
10:54 PM 55.9 °F 50.0 °F 80% 30.08 in 10.0 mi South 8.1 mph - N/A   Overcast