History for Hayward, CA

Friday, December 21, 2012 — View Current Conditions
Friday, December 21, 2012
« Previous Day
Next Day »
Daily Weekly Monthly Custom
  Actual Average Record
Temperature
Mean Temperature 55 °F 50 °F  
Max Temperature 59 °F 57 °F 73 °F (1999)
Min Temperature 51 °F 42 °F 29 °F (1998)
Degree Days
Heating Degree Days 10    
Month to date heating degree days 271  
Since 1 July heating degree days 699  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 191  
Growing Degree Days 4 (Base 50)    
Moisture
Dew Point 44 °F    
Average Humidity 68    
Maximum Humidity 93    
Minimum Humidity 43    
Precipitation
Precipitation 0.06 in - 0.39 in (2006)
Month to date precipitation 1.32  
Year to date precipitation 13.55  
Since 1 July precipitation 4.43  
Sea Level Pressure
Sea Level Pressure 29.94 in    
Wind
Wind Speed 15 mph (SSE)    
Max Wind Speed 25 mph    
Max Gust Speed 32 mph    
Visibility 9 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
Daily Graph
Certify This Report
History Location
Airport:
 
Trip Planner
Search our historical database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it will be!
Date:
Radar Archive
Click to View Archived Radar Loop
This image may take a moment to generate.
Local Photos
Battered wave
Today the wind was 45 mph from the south and the swells to 12 feet from the NW so when they met the waves lost their tops.
Welcome to Alcatraz
Mother Nature couldn't have picked more appropriate weather for a visit to this infamous prison if she tried.
Visit WunderPhotos
Astronomy
May. 24, 2013 Rise Set
Actual Time 7:20 AM PST 4:53 PM PST
Civil Twilight 6:50 AM PST 5:23 PM PST
Nautical Twilight 6:17 AM PST 5:56 PM PST
Astronomical Twilight 5:45 AM PST 6:27 PM PST
Moon 12:39 PM PST (12/21) 1:16 AM PST (12/21)
Length Of Visible Light 10h 32m
Length of Day
9h 33m
Waxing Gibbous, 66% of the Moon is Illuminated
Dec 21
Waxing Gibbous
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Visit Astronomy
Hourly Observations
Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 51.1 °F 35.1 °F 54% 30.02 in 10.0 mi SSE 12.7 mph - N/A   Clear
1:54 AM 52.0 °F 36.0 °F 54% 30.01 in 10.0 mi SSE 17.3 mph 24.2 mph N/A   Mostly Cloudy
2:54 AM 52.0 °F 33.1 °F 49% 30.00 in 10.0 mi SSE 15.0 mph 21.9 mph N/A   Clear
3:54 AM 53.1 °F 33.1 °F 47% 29.98 in 10.0 mi SSE 16.1 mph - N/A   Scattered Clouds
4:54 AM 53.1 °F 32.0 °F 45% 29.96 in 10.0 mi SSE 15.0 mph 23.0 mph N/A   Overcast
5:54 AM 52.0 °F 30.9 °F 45% 29.97 in 10.0 mi SSE 12.7 mph - N/A   Mostly Cloudy
6:54 AM 54.0 °F 37.9 °F 55% 29.98 in 10.0 mi SSE 16.1 mph 23.0 mph N/A   Mostly Cloudy
7:54 AM 54.0 °F 36.0 °F 51% 29.95 in 10.0 mi SSE 21.9 mph 29.9 mph N/A   Mostly Cloudy
8:54 AM 55.0 °F 34.0 °F 45% 29.96 in 10.0 mi SSE 15.0 mph - N/A   Overcast
9:54 AM 55.9 °F 37.9 °F 51% 29.97 in 10.0 mi South 21.9 mph 26.5 mph N/A   Overcast
10:54 AM 53.1 °F 41.0 °F 64% 29.97 in 10.0 mi SSE 18.4 mph 26.5 mph 0.02 in Rain Light Rain
11:54 AM 54.0 °F 41.0 °F 62% 29.96 in 10.0 mi SSE 20.7 mph 26.5 mph 0.00 in Rain Light Rain
12:45 PM 55.4 °F 42.8 °F 63% 29.91 in 10.0 mi SSE 19.6 mph 24.2 mph 0.00 in   Overcast
12:54 PM 55.0 °F 43.0 °F 64% 29.94 in 10.0 mi SSE 17.3 mph 25.3 mph 0.00 in   Overcast
1:54 PM 57.0 °F 46.9 °F 69% 29.92 in 8.0 mi SSE 13.8 mph 25.3 mph N/A   Overcast
2:54 PM 57.0 °F 46.9 °F 69% 29.92 in 10.0 mi South 17.3 mph 28.8 mph N/A   Mostly Cloudy
3:54 PM 55.9 °F 46.9 °F 72% 29.92 in 10.0 mi South 15.0 mph 24.2 mph 0.00 in Rain Light Rain
4:21 PM 55.4 °F 48.2 °F 77% 29.89 in 10.0 mi South 15.0 mph - 0.00 in Rain Light Rain
4:29 PM 55.4 °F 48.2 °F 77% 29.90 in 10.0 mi South 13.8 mph - 0.00 in Rain Light Rain
4:54 PM 55.9 °F 48.9 °F 77% 29.94 in 10.0 mi South 13.8 mph 24.2 mph 0.00 in Rain Light Rain
5:15 PM 55.4 °F 48.2 °F 77% 29.92 in 6.0 mi South 11.5 mph - 0.00 in Rain Light Rain
5:54 PM 54.0 °F 50.0 °F 86% 29.95 in 6.0 mi SSE 12.7 mph - 0.00 in Rain Light Rain
6:54 PM 53.1 °F 51.1 °F 93% 29.94 in 7.0 mi SSE 13.8 mph - 0.01 in Rain Light Rain
7:21 PM 53.6 °F 51.8 °F 94% 29.92 in 2.5 mi South 9.2 mph - 0.01 in Rain Light Rain
7:30 PM 53.6 °F 51.8 °F 94% 29.91 in 3.0 mi South 8.1 mph - 0.01 in Rain Light Rain
7:54 PM 53.1 °F 52.0 °F 96% 29.94 in 5.0 mi South 3.5 mph - 0.02 in Rain Light Rain
8:03 PM 53.6 °F 51.8 °F 94% 29.91 in 4.0 mi Calm Calm - 0.00 in Rain Light Rain
8:13 PM 53.6 °F 51.8 °F 94% 29.91 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
8:54 PM 55.0 °F 48.9 °F 80% 29.94 in 10.0 mi SSE 8.1 mph - 0.00 in   Overcast
9:54 PM 54.0 °F 48.9 °F 83% 29.94 in 8.0 mi SSE 13.8 mph - 0.01 in Rain Light Rain
10:01 PM 53.6 °F 48.2 °F 82% 29.91 in 10.0 mi SSE 12.7 mph - 0.00 in   Overcast
10:54 PM 54.0 °F 48.0 °F 80% 29.92 in 10.0 mi SE 11.5 mph - 0.00 in   Overcast
11:54 PM 54.0 °F 48.0 °F 80% 29.92 in 10.0 mi SSE 10.4 mph - N/A   Mostly Cloudy
Show full METARS | METAR FAQ | Comma Delimited File