Weather History for Hayward, CA

Change the Weather History Date:

Tuesday, December 18, 2012

  Actual Average Record
Temperature  
Mean Temperature 47 °F 50 °F  
Max Temperature 54 °F 57 °F 65 °F (2009)
Min Temperature 39 °F 42 °F 33 °F (2006)
Degree Days  
Heating Degree Days 18    
Month to date heating degree days 222  
Since 1 July heating degree days 650  
Moisture  
Dew Point 31 °F    
Average Humidity 64    
Maximum Humidity 89    
Minimum Humidity 38    
Precipitation  
Precipitation 0.00 in - 0.63 in (2005)
Month to date precipitation 1.26  
Year to date precipitation 13.49  
Since 1 July precipitation 4.37  
Sea Level Pressure  
Sea Level Pressure 30.11 in    
Wind  
Wind Speed 8 mph (NNW)    
Max Wind Speed 24 mph    
Max Gust Speed 30 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Dec. 18, 2012 Rise Set
Actual Time 7:18 AM PST 4:52 PM PST
Civil Twilight 6:49 AM PST 5:21 PM PST
Nautical Twilight 6:16 AM PST 5:54 PM PST
Astronomical Twilight 5:44 AM PST 6:26 PM PST
Moon 11:07 AM PST (12/18) 11:17 PM PST (12/18)
Length of Visible Light 10h 32m
Length of Day
9h 33m
Waxing Crescent, 36% of the Moon is Illuminated
Dec 18
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 46.0 °F 44.8 °F 41.0 °F 83% 30.04 in 10.0 mi ENE 3.5 mph - N/A   Mostly Cloudy
1:54 AM 46.0 °F 44.8 °F 39.0 °F 76% 30.03 in 10.0 mi North 3.5 mph - N/A   Partly Cloudy
3:54 AM 45.0 °F 43.5 °F 37.0 °F 74% 30.04 in 10.0 mi North 3.5 mph - N/A   Overcast
4:54 AM 44.1 °F 40.8 °F 30.9 °F 60% 30.04 in 10.0 mi North 5.8 mph - N/A   Clear
5:54 AM 42.1 °F 36.6 °F 30.0 °F 62% 30.06 in 10.0 mi NW 9.2 mph - N/A   Clear
6:54 AM 41.0 °F - 30.0 °F 65% 30.08 in 10.0 mi Calm Calm - N/A   Clear
7:54 AM 39.9 °F - 33.1 °F 77% 30.08 in 10.0 mi Calm Calm - N/A   Clear
8:54 AM 45.0 °F - 33.1 °F 63% 30.10 in 10.0 mi Calm Calm - N/A   Clear
9:54 AM 48.9 °F - 33.1 °F 54% 30.12 in 10.0 mi NNW 9.2 mph - N/A   Clear
10:54 AM 51.1 °F - 33.1 °F 50% 30.11 in 10.0 mi NW 10.4 mph - N/A   Clear
11:54 AM 53.1 °F - 28.9 °F 40% 30.10 in 10.0 mi NNW 17.3 mph 27.6 mph N/A   Partly Cloudy
12:54 PM 53.1 °F - 30.9 °F 43% 30.08 in 10.0 mi WNW 16.1 mph 20.7 mph N/A   Clear
1:54 PM 53.1 °F - 30.9 °F 43% 30.07 in 10.0 mi WNW 10.4 mph - N/A   Partly Cloudy
2:54 PM 53.1 °F - 30.9 °F 43% 30.08 in 10.0 mi NNW 10.4 mph 18.4 mph N/A   Scattered Clouds
3:54 PM 52.0 °F - 26.1 °F 37% 30.09 in 10.0 mi NNW 12.7 mph 25.3 mph N/A   Clear
4:54 PM 48.9 °F - 30.9 °F 50% 30.10 in 10.0 mi WNW 12.7 mph - N/A   Clear
5:54 PM 48.9 °F - 27.0 °F 43% 30.12 in 10.0 mi NNW 12.7 mph - N/A   Clear
6:54 PM 48.0 °F - 28.0 °F 46% 30.14 in 10.0 mi NNW 10.4 mph - N/A   Clear
7:54 PM 46.9 °F - 28.0 °F 48% 30.17 in 10.0 mi NNW 10.4 mph - N/A   Clear
8:54 PM 45.0 °F 39.7 °F 28.9 °F 53% 30.18 in 10.0 mi NNW 10.4 mph - N/A   Clear
9:54 PM 44.1 °F 39.5 °F 30.0 °F 58% 30.20 in 10.0 mi NNW 8.1 mph - N/A   Clear
10:54 PM 43.0 °F 41.3 °F 30.0 °F 60% 30.22 in 10.0 mi NNE 3.5 mph - N/A   Clear
11:54 PM 39.0 °F 35.7 °F 28.9 °F 67% 30.23 in 10.0 mi SSE 4.6 mph - N/A   Clear