Livermore, CA

7:59 AM PST on December 17, 2017 (GMT -0800)
Livermore Municipal

Weather History for KLVK - December, 2015

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Monday, December 21, 2015

  Actual Average Record
Temperature  
Mean Temperature 55 °F 46 °F  
Max Temperature 58 °F 56 °F 67 °F (2005)
Min Temperature 52 °F 37 °F 20 °F (1968)
Degree Days  
Heating Degree Days 10 19  
Month to date heating degree days 325 371  
Since 1 July heating degree days 740 843  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1463 830  
Growing Degree Days 4 (Base 50)    
Moisture  
Dew Point 51 °F    
Average Humidity 90    
Maximum Humidity 100    
Minimum Humidity 80    
Precipitation  
Precipitation 0.51 in 0.11 in 1.93 in (1996)
Month to date precipitation 1.89 1.64  
Year to date precipitation 8.51 14.67  
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 8 mph (SW)    
Max Wind Speed 21 mph    
Max Gust Speed 26 mph    
Visibility 8 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Dec. 21, 2015 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 2:16 PM PST (12/21) 3:01 AM PST (12/21)
Length of Visible Light 10h 32m
Length of Day
9h 33m
Waxing Gibbous, 84% of the Moon is Illuminated
Dec 21
Waxing Gibbous
Dec 25
Full
Jan 1
Last Quarter
Jan 9
New
Jan 16
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:12 AM 53.1 °F 48.0 °F 83% 30.14 in 10.0 mi SSW 5.8 mph - N/A   Overcast
12:40 AM 53.1 °F 48.0 °F 83% 30.14 in 10.0 mi NNW 3.5 mph - N/A   Overcast
12:48 AM 53.6 °F 48.2 °F 82% 30.14 in 10.0 mi Calm Calm - N/A   Overcast
12:53 AM 53.1 °F 48.0 °F 83% 30.14 in 9.0 mi Calm Calm - 0.00 in Rain Light Rain
1:21 AM 52.0 °F 48.0 °F 86% 30.13 in 10.0 mi North 4.6 mph - 0.00 in   Overcast
1:53 AM 53.1 °F 48.9 °F 86% 30.13 in 10.0 mi NNW 3.5 mph - 0.00 in Rain Light Rain
2:34 AM 53.1 °F 48.9 °F 86% 30.13 in 10.0 mi NW 4.6 mph - 0.00 in   Overcast
2:53 AM 53.1 °F 48.9 °F 86% 30.12 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
3:10 AM 53.1 °F 48.9 °F 86% 30.11 in 10.0 mi NNW 3.5 mph - 0.00 in   Overcast
3:53 AM 53.1 °F 48.9 °F 86% 30.10 in 10.0 mi Variable 4.6 mph - 0.00 in   Overcast
4:53 AM 54.0 °F 48.9 °F 83% 30.09 in 10.0 mi Calm Calm - N/A   Overcast
5:53 AM 54.0 °F 48.9 °F 83% 30.09 in 10.0 mi SW 5.8 mph - N/A   Overcast
6:32 AM 54.0 °F 50.0 °F 86% 30.09 in 10.0 mi SW 3.5 mph - N/A   Overcast
6:41 AM 54.0 °F 48.9 °F 83% 30.09 in 10.0 mi WSW 3.5 mph - N/A   Overcast
6:53 AM 54.0 °F 48.9 °F 83% 30.09 in 10.0 mi SW 5.8 mph - N/A   Overcast
7:24 AM 53.1 °F 50.0 °F 89% 30.08 in 10.0 mi WSW 6.9 mph - 0.00 in   Overcast
7:53 AM 55.0 °F 50.0 °F 83% 30.07 in 10.0 mi SW 10.4 mph - 0.00 in   Mostly Cloudy
8:34 AM 55.9 °F 50.0 °F 80% 30.08 in 10.0 mi WSW 9.2 mph - N/A   Overcast
8:50 AM 55.4 °F 50.0 °F 82% 30.09 in 10.0 mi SW 9.2 mph - N/A   Overcast
8:53 AM 55.9 °F 50.0 °F 80% 30.09 in 10.0 mi SW 9.2 mph - N/A   Overcast
9:10 AM 55.9 °F 50.0 °F 80% 30.09 in 6.0 mi WSW 10.4 mph - N/A   Overcast
9:22 AM 55.9 °F 51.1 °F 84% 30.09 in 3.0 mi WSW 10.4 mph - 0.01 in Rain Light Rain
9:37 AM 55.9 °F 52.0 °F 87% 30.10 in 6.0 mi WSW 9.2 mph - 0.01 in   Overcast
9:53 AM 57.0 °F 52.0 °F 83% 30.09 in 6.0 mi SW 12.7 mph - 0.01 in Rain Light Rain
10:53 AM 57.9 °F 53.1 °F 84% 30.06 in 10.0 mi SW 12.7 mph - 0.00 in   Overcast
11:53 AM 57.9 °F 52.0 °F 81% 30.05 in 10.0 mi WSW 15.0 mph 26.5 mph 0.01 in   Overcast
12:53 PM 57.0 °F 53.1 °F 87% 30.01 in 7.0 mi SW 13.8 mph - 0.02 in Rain Light Rain
1:53 PM 57.0 °F 53.1 °F 87% 29.98 in 4.0 mi SSW 8.1 mph - 0.02 in Rain Light Rain
2:13 PM 57.0 °F 53.1 °F 87% 29.98 in 2.5 mi SW 12.7 mph - 0.03 in Rain Light Rain
2:53 PM 57.0 °F 53.1 °F 87% 29.96 in 2.5 mi SSW 11.5 mph 20.7 mph 0.07 in Rain Light Rain
3:53 PM 57.0 °F 54.0 °F 89% 29.95 in 2.5 mi SW 12.7 mph - 0.05 in Rain Light Rain
4:53 PM 57.0 °F 54.0 °F 89% 29.94 in 2.5 mi SW 10.4 mph - 0.11 in Rain Light Rain
5:53 PM 57.0 °F 54.0 °F 89% 29.93 in 2.5 mi SW 9.2 mph - 0.05 in Rain Light Rain
6:53 PM 57.0 °F 54.0 °F 89% 29.92 in 2.5 mi SW 6.9 mph - 0.04 in Rain Light Rain
7:00 PM 57.0 °F 54.0 °F 89% 29.92 in 8.0 mi SSW 8.1 mph - 0.00 in Rain Light Rain
7:53 PM 57.9 °F 54.0 °F 87% 29.92 in 10.0 mi West 13.8 mph - 0.01 in Rain Light Rain
8:53 PM 57.0 °F 55.0 °F 93% 29.91 in 4.0 mi WSW 10.4 mph - 0.00 in   Overcast
9:53 PM 55.9 °F 55.0 °F 97% 29.88 in 6.0 mi SW 5.8 mph - 0.02 in   Overcast
10:27 PM 55.9 °F 55.0 °F 97% 29.87 in 5.0 mi SW 3.5 mph - 0.01 in   Overcast
10:53 PM 55.9 °F 55.0 °F 97% 29.86 in 9.0 mi SSW 3.5 mph - 0.02 in Rain Light Rain
11:00 PM 57.0 °F 55.0 °F 93% 29.86 in 10.0 mi SSW 5.8 mph - 0.00 in Rain Light Rain
11:45 PM 55.9 °F 55.0 °F 97% 29.86 in 4.0 mi SW 4.6 mph - 0.05 in Rain Light Rain
11:53 PM 55.9 °F 55.0 °F 97% 29.86 in 3.0 mi SSW 4.6 mph - 0.07 in Rain Light Rain