Weather History for Livermore, CA

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Saturday, February 23, 2013

  Actual Average Record
Temperature  
Mean Temperature 51 °F 52 °F  
Max Temperature 59 °F 62 °F 77 °F (2012)
Min Temperature 42 °F 41 °F 27 °F (1955)
Degree Days  
Heating Degree Days 14 13  
Month to date heating degree days 380 345  
Since 1 July heating degree days 1869 1943  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 39 °F    
Average Humidity 67    
Maximum Humidity 100    
Minimum Humidity 33    
Precipitation  
Precipitation T in 0.12 in 1.06 in (2000)
Month to date precipitation 0.41 2.45  
Year to date precipitation 1.12 5.46  
Since 1 July precipitation 9.41 11.27  
Sea Level Pressure  
Sea Level Pressure 30.20 in    
Wind  
Wind Speed 7 mph (West)    
Max Wind Speed 15 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 23, 2013 Rise Set
Actual Time 6:46 AM PST 5:55 PM PST
Civil Twilight 6:19 AM PST 6:21 PM PST
Nautical Twilight 5:49 AM PST 6:52 PM PST
Astronomical Twilight 5:19 AM PST 7:22 PM PST
Moon 4:11 PM PST (2/23) 5:10 AM PST (2/23)
Length of Visible Light 12h 01m
Length of Day
11h 08m
Waxing Gibbous, 96% of the Moon is Illuminated
Feb 23
Waxing Gibbous
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 46.9 °F - 44.1 °F 90% 30.22 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM 46.9 °F - 44.1 °F 90% 30.21 in 10.0 mi SSW 9.2 mph - N/A   Clear
2:43 AM 48.2 °F - 44.6 °F 87% 30.21 in 10.0 mi WSW 10.4 mph - N/A   Mostly Cloudy
2:51 AM 48.2 °F - 44.6 °F 87% 30.20 in 10.0 mi WSW 10.4 mph - N/A   Overcast
2:53 AM 48.0 °F - 44.1 °F 86% 30.20 in 10.0 mi SW 9.2 mph - N/A   Overcast
3:53 AM 48.0 °F - 45.0 °F 89% 30.19 in 10.0 mi SW 8.1 mph - N/A   Overcast
4:37 AM 48.2 °F - 46.4 °F 93% 30.18 in 4.0 mi SW 8.1 mph - N/A   Overcast
4:53 AM 48.0 °F - 46.0 °F 93% 30.18 in 6.0 mi SW 9.2 mph - N/A   Overcast
5:10 AM 46.4 °F 41.1 °F 46.4 °F 100% 30.16 in 8.0 mi SW 11.5 mph - 0.00 in Rain Light Rain
5:53 AM 46.9 °F - 46.0 °F 97% 30.18 in 10.0 mi SSW 3.5 mph - 0.00 in   Mostly Cloudy
6:21 AM 48.2 °F - 44.6 °F 87% 30.19 in 10.0 mi WSW 11.5 mph - N/A   Overcast
6:28 AM 48.2 °F - 44.6 °F 87% 30.20 in 10.0 mi WSW 10.4 mph - N/A   Overcast
6:35 AM 48.2 °F - 44.6 °F 87% 30.20 in 10.0 mi West 10.4 mph - N/A   Mostly Cloudy
6:53 AM 46.9 °F - 44.1 °F 90% 30.20 in 10.0 mi West 9.2 mph - N/A   Scattered Clouds
7:53 AM 48.0 °F - 44.1 °F 86% 30.23 in 10.0 mi WSW 5.8 mph - N/A   Clear
8:53 AM 50.0 °F - 41.0 °F 71% 30.25 in 10.0 mi WNW 6.9 mph - N/A   Clear
9:53 AM 52.0 °F - 41.0 °F 66% 30.25 in 10.0 mi West 4.6 mph - N/A   Partly Cloudy
10:53 AM 55.0 °F - 37.9 °F 53% 30.23 in 10.0 mi Variable 4.6 mph - N/A   Partly Cloudy
11:23 AM 55.4 °F - 33.8 °F 44% 30.22 in 10.0 mi Variable 5.8 mph - N/A   Clear
11:53 AM 55.9 °F - 32.0 °F 40% 30.22 in 10.0 mi North 9.2 mph 18.4 mph N/A   Partly Cloudy
12:53 PM 57.9 °F - 28.9 °F 33% 30.19 in 10.0 mi NW 8.1 mph - N/A   Partly Cloudy
1:53 PM 59.0 °F - 30.0 °F 33% 30.17 in 10.0 mi NNW 12.7 mph 17.3 mph N/A   Clear
2:53 PM 59.0 °F - 30.0 °F 33% 30.15 in 10.0 mi NW 10.4 mph - N/A   Partly Cloudy
3:53 PM 59.0 °F - 30.9 °F 35% 30.14 in 10.0 mi NW 10.4 mph - N/A   Clear
4:53 PM 57.0 °F - 30.9 °F 37% 30.15 in 10.0 mi North 10.4 mph - N/A   Clear
5:53 PM 54.0 °F - 32.0 °F 43% 30.17 in 10.0 mi NW 6.9 mph - N/A   Clear
6:53 PM 51.1 °F - 33.1 °F 50% 30.19 in 10.0 mi NNW 5.8 mph - N/A   Clear
7:53 PM 48.0 °F - 34.0 °F 58% 30.19 in 10.0 mi NW 6.9 mph - N/A   Clear
8:53 PM 46.9 °F - 35.1 °F 63% 30.20 in 10.0 mi NW 4.6 mph - N/A   Clear
9:53 PM 46.0 °F - 35.1 °F 66% 30.20 in 10.0 mi Calm Calm - N/A   Clear
10:53 PM 46.9 °F - 32.0 °F 56% 30.20 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 42.1 °F 40.2 °F 32.0 °F 67% 30.21 in 10.0 mi WSW 3.5 mph - N/A   Clear