Weather History for Hayward, CA

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Monday, December 17, 2012

  Actual Average Record
Temperature  
Mean Temperature 52 °F 50 °F  
Max Temperature 58 °F 57 °F 66 °F (1996)
Min Temperature 45 °F 42 °F 34 °F (2008)
Degree Days  
Heating Degree Days 13    
Month to date heating degree days 204  
Since 1 July heating degree days 632  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 82    
Maximum Humidity 93    
Minimum Humidity 71    
Precipitation  
Precipitation 0.12 in - 0.41 in (2001)
Month to date precipitation 1.26  
Year to date precipitation 13.49  
Since 1 July precipitation 4.37  
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 8 mph (SSW)    
Max Wind Speed 17 mph    
Max Gust Speed 21 mph    
Visibility 8 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 17, 2012 Rise Set
Actual Time 7:17 AM PST 4:51 PM PST
Civil Twilight 6:48 AM PST 5:21 PM PST
Nautical Twilight 6:15 AM PST 5:54 PM PST
Astronomical Twilight 5:43 AM PST 6:26 PM PST
Moon 10:34 AM PST (12/17) 10:14 PM PST (12/17)
Length of Visible Light 10h 32m
Length of Day
9h 33m
Waxing Crescent, 26% of the Moon is Illuminated
Dec 17
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
12:23 AM 57.2 °F - 48.2 °F 72% 30.03 in 10.0 mi South 13.8 mph 19.6 mph N/A   Overcast
12:54 AM 55.9 °F - 48.0 °F 75% 30.06 in 10.0 mi South 12.7 mph - 0.00 in Rain Light Rain
1:54 AM 55.9 °F - 48.0 °F 75% 30.06 in 10.0 mi South 12.7 mph - 0.00 in   Overcast
2:54 AM 55.0 °F - 48.9 °F 80% 30.06 in 9.0 mi South 16.1 mph - 0.00 in   Overcast
3:54 AM 55.0 °F - 50.0 °F 83% 30.05 in 9.0 mi SSE 13.8 mph - 0.00 in Rain Light Rain
4:54 AM 54.0 °F - 50.0 °F 86% 30.04 in 10.0 mi South 12.7 mph - 0.00 in   Overcast
5:54 AM 54.0 °F - 51.1 °F 90% 30.05 in 10.0 mi SSE 10.4 mph - 0.00 in   Overcast
6:21 AM 53.6 °F - 51.8 °F 94% 30.03 in 2.0 mi SSE 11.5 mph - 0.05 in Rain Rain
6:27 AM 53.6 °F - 51.8 °F 94% 30.03 in 3.0 mi SSE 10.4 mph - 0.05 in Rain Light Rain
6:54 AM 54.0 °F - 52.0 °F 93% 30.06 in 10.0 mi SSE 10.4 mph - 0.05 in   Overcast
7:03 AM 53.6 °F - 51.8 °F 94% 30.02 in 10.0 mi SSE 10.4 mph - N/A   Overcast
7:27 AM 53.6 °F - 51.8 °F 94% 30.03 in 7.0 mi SSE 10.4 mph - N/A   Overcast
7:54 AM 54.0 °F - 52.0 °F 93% 30.06 in 6.0 mi South 11.5 mph - 0.00 in Rain Light Rain
8:12 AM 53.6 °F - 51.8 °F 94% 30.03 in 1.8 mi South 10.4 mph - 0.00 in Rain Light Rain
8:25 AM 53.6 °F - 51.8 °F 94% 30.04 in 7.0 mi SSE 10.4 mph - 0.00 in Rain Light Rain
8:49 AM 53.6 °F - 51.8 °F 94% 30.05 in 1.5 mi South 6.9 mph - 0.02 in Rain Light Rain
8:54 AM 54.0 °F - 52.0 °F 93% 30.09 in 1.0 mi West 11.5 mph 17.3 mph 0.05 in Rain Heavy Rain
9:07 AM 53.6 °F - 51.8 °F 94% 30.07 in 2.5 mi West 10.4 mph - 0.02 in Rain Light Rain
9:15 AM 53.6 °F - 51.8 °F 94% 30.07 in 3.0 mi West 8.1 mph - 0.02 in Rain Light Rain
9:54 AM 54.0 °F - 52.0 °F 93% 30.11 in 3.0 mi WSW 4.6 mph - 0.02 in Rain Light Rain
10:02 AM 53.6 °F - 51.8 °F 94% 30.08 in 2.5 mi WSW 4.6 mph - 0.00 in Rain Light Rain
10:07 AM 53.6 °F - 51.8 °F 94% 30.08 in 5.0 mi Calm Calm - 0.00 in Rain Light Rain
10:54 AM 55.0 °F - 51.1 °F 86% 30.09 in 10.0 mi Variable 3.5 mph - 0.00 in   Overcast
11:03 AM 55.4 °F - 51.8 °F 88% 30.06 in 10.0 mi SSW 3.5 mph - N/A   Overcast
11:35 AM 55.4 °F - 51.8 °F 88% 30.05 in 10.0 mi Calm Calm - N/A   Overcast
11:54 AM 57.0 °F - 52.0 °F 83% 30.08 in 10.0 mi Calm Calm - N/A   Overcast
12:11 PM 55.4 °F - 51.8 °F 88% 30.04 in 10.0 mi Calm Calm - N/A   Overcast
12:25 PM 57.2 °F - 51.8 °F 82% 30.04 in 10.0 mi Calm Calm - N/A   Overcast
12:54 PM 57.0 °F - 51.1 °F 81% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
1:54 PM 55.9 °F - 51.1 °F 84% 30.03 in 10.0 mi WSW 4.6 mph - N/A   Overcast
4:54 PM 54.0 °F - 46.9 °F 77% 30.01 in 10.0 mi West 8.1 mph - N/A   Overcast
5:54 PM 54.0 °F - 46.0 °F 75% 30.02 in 10.0 mi WNW 9.2 mph - N/A   Overcast
6:54 PM 53.1 °F - 44.1 °F 71% 30.02 in 10.0 mi West 12.7 mph - N/A   Overcast
7:54 PM 52.0 °F - 44.1 °F 74% 30.03 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
8:54 PM 51.1 °F - 43.0 °F 74% 30.04 in 10.0 mi WNW 12.7 mph - N/A   Clear
9:54 PM 48.9 °F - 42.1 °F 77% 30.03 in 10.0 mi WNW 4.6 mph - N/A   Clear
10:54 PM 48.0 °F - 42.1 °F 80% 30.04 in 10.0 mi Calm Calm - N/A   Clear
11:54 PM 45.0 °F 43.5 °F 41.0 °F 86% 30.03 in 10.0 mi ENE 3.5 mph - N/A   Clear