Weather History for KOAK - January, 2015

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Monday, January 19, 2015

  Actual Average Record
Temperature  
Mean Temperature 55 °F 50 °F  
Max Temperature 63 °F 57 °F 68 °F (1976)
Min Temperature 47 °F 42 °F 34 °F (2007)
Degree Days  
Heating Degree Days 10 16  
Month to date heating degree days 284 309  
Since 1 July heating degree days 923 1481  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 5 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 77    
Maximum Humidity 93    
Minimum Humidity 60    
Precipitation  
Precipitation 0.00 in 0.08 in 1.48 in (2010)
Month to date precipitation T 3.05  
Year to date precipitation T 3.05  
Since 1 July precipitation 11.67 10.64  
Sea Level Pressure  
Sea Level Pressure 30.25 in    
Wind  
Wind Speed 5 mph (North)    
Max Wind Speed 14 mph    
Max Gust Speed 16 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 19, 2015 Rise Set
Actual Time 7:21 AM PST 5:18 PM PST
Civil Twilight 6:53 AM PST 5:46 PM PST
Nautical Twilight 6:20 AM PST 6:18 PM PST
Astronomical Twilight 5:49 AM PST 6:50 PM PST
Moon 6:18 AM PST (1/19) 4:51 PM PST (1/19)
Length of Visible Light 10h 53m
Length of Day
9h 56m
Waning Crescent, 1% of the Moon is Illuminated
Jan 19
Waning Crescent
Jan 20
New
Jan 26
First Quarter
Feb 3
Full
Feb 11
Last Quarter

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:31 AM 55.4 °F 53.6 °F 94% 30.27 in 10.0 mi NW 4.6 mph - N/A   Mostly Cloudy
12:53 AM 54.0 °F 52.0 °F 93% 30.27 in 8.0 mi NW 4.6 mph - N/A   Mostly Cloudy
1:23 AM 55.4 °F 53.6 °F 94% 30.27 in 5.0 mi NNW 3.5 mph - N/A   Overcast
1:35 AM 55.4 °F 53.6 °F 94% 30.28 in 5.0 mi NW 3.5 mph - N/A   Overcast
1:53 AM 55.0 °F 54.0 °F 96% 30.27 in 4.0 mi NNW 4.6 mph - N/A   Overcast
2:48 AM 55.4 °F 53.6 °F 94% 30.29 in 6.0 mi NW 3.5 mph - N/A   Overcast
2:53 AM 55.9 °F 54.0 °F 93% 30.29 in 6.0 mi ENE 3.5 mph - N/A   Overcast
3:53 AM 55.0 °F 52.0 °F 89% 30.28 in 7.0 mi Calm Calm - N/A   Overcast
4:53 AM 55.0 °F 51.1 °F 86% 30.28 in 7.0 mi East 3.5 mph - N/A   Overcast
5:53 AM 54.0 °F 51.1 °F 90% 30.28 in 7.0 mi East 4.6 mph - N/A   Overcast
6:06 AM 53.6 °F 50.0 °F 88% 30.27 in 7.0 mi East 4.6 mph - N/A   Mostly Cloudy
6:29 AM 53.6 °F 50.0 °F 88% 30.28 in 8.0 mi East 3.5 mph - N/A   Mostly Cloudy
6:53 AM 53.1 °F 50.0 °F 89% 30.28 in 9.0 mi East 3.5 mph - N/A   Mostly Cloudy
7:53 AM 54.0 °F 50.0 °F 86% 30.29 in 10.0 mi ENE 4.6 mph - N/A   Mostly Cloudy
8:53 AM 55.9 °F 51.1 °F 84% 30.30 in 10.0 mi ENE 6.9 mph - N/A   Scattered Clouds
9:53 AM 55.9 °F 50.0 °F 80% 30.31 in 10.0 mi NE 11.5 mph - N/A   Mostly Cloudy
10:53 AM 59.0 °F 48.9 °F 69% 30.32 in 10.0 mi ENE 6.9 mph - N/A   Partly Cloudy
11:53 AM 62.1 °F 48.0 °F 60% 30.28 in 10.0 mi North 6.9 mph - N/A   Partly Cloudy
12:53 PM 57.9 °F 48.9 °F 72% 30.25 in 10.0 mi WSW 8.1 mph - N/A   Partly Cloudy
1:53 PM 59.0 °F 50.0 °F 72% 30.23 in 10.0 mi WSW 9.2 mph - N/A   Partly Cloudy
2:53 PM 57.9 °F 51.1 °F 78% 30.22 in 10.0 mi WSW 5.8 mph - N/A   Partly Cloudy
3:53 PM 59.0 °F 51.1 °F 75% 30.22 in 10.0 mi WNW 8.1 mph - N/A   Scattered Clouds
4:53 PM 55.9 °F 50.0 °F 80% 30.20 in 10.0 mi WNW 8.1 mph - N/A   Mostly Cloudy
5:53 PM 54.0 °F 50.0 °F 86% 30.20 in 10.0 mi West 3.5 mph - N/A   Mostly Cloudy
6:53 PM 53.1 °F 48.9 °F 86% 30.21 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:53 PM 52.0 °F 48.0 °F 86% 30.22 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:53 PM 50.0 °F 46.9 °F 89% 30.21 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:53 PM 48.0 °F 45.0 °F 89% 30.19 in 10.0 mi ENE 3.5 mph - N/A   Partly Cloudy
10:53 PM 48.0 °F 46.0 °F 93% 30.19 in 10.0 mi Calm Calm - N/A   Partly Cloudy
11:53 PM 48.9 °F 46.0 °F 90% 30.18 in 10.0 mi Calm Calm - N/A   Partly Cloudy