Weather History for Petaluma, CA

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Saturday, January 11, 2014

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 47 °F 46 °F  
Max Temperature 55 °F 55 °F 66 °F (2012)
Min Temperature 39 °F 37 °F 24 °F (2007)
Degree Days  
Heating Degree Days 18    
Month to date heating degree days  
Since 1 July heating degree days  
Cooling Degree Days 0    
Month to date cooling degree days  
Year to date cooling degree days  
Moisture  
Dew Point 46 °F    
Average Humidity 100    
Maximum Humidity 100    
Minimum Humidity 100    
Precipitation  
Precipitation 0.00 in - 4.77 in (1979)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.24 in    
Wind  
Wind Speed 2 mph (NW)    
Max Wind Speed 14 mph    
Max Gust Speed -    
Visibility 6 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 11, 2014 Rise Set
Actual Time 7:26 AM PST 5:10 PM PST
Civil Twilight 6:57 AM PST 5:39 PM PST
Nautical Twilight 6:25 AM PST 6:12 PM PST
Astronomical Twilight 5:53 AM PST 6:43 PM PST
Moon 1:57 PM PST (1/11) 3:37 AM PST (1/11)
Length of Visible Light 10h 41m
Length of Day
9h 43m
Waxing Gibbous, 84% of the Moon is Illuminated
Jan 11
Waxing Gibbous
Jan 15
Full
Jan 23
Last Quarter
Jan 30
New
Feb 6
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 44.6 °F - 44.6 °F 100% 30.23 in 0.2 mi Calm Calm - N/A   Overcast
12:35 AM 42.8 °F - 42.8 °F 100% 30.22 in 0.2 mi Calm Calm - N/A   Overcast
12:55 AM 42.8 °F 41.1 °F 42.8 °F 100% 30.22 in 0.2 mi North 3.5 mph - N/A   Overcast
1:15 AM 42.8 °F - 42.8 °F 100% 30.21 in 0.2 mi Calm Calm - N/A   Overcast
1:35 AM 41.0 °F - 41.0 °F 100% 30.21 in 0.2 mi Calm Calm - N/A   Overcast
1:55 AM 41.0 °F - 41.0 °F 100% 30.21 in 0.2 mi Calm Calm - N/A   Overcast
2:15 AM 41.0 °F - 41.0 °F 100% 30.22 in 0.8 mi Calm Calm - N/A   Overcast
2:35 AM 41.0 °F 39.0 °F 41.0 °F 100% 30.23 in 0.5 mi West 3.5 mph - N/A   Overcast
2:55 AM 39.2 °F - 39.2 °F 100% 30.21 in 0.2 mi Calm Calm - N/A   Overcast
3:15 AM 39.2 °F - 39.2 °F 100% 30.22 in 0.2 mi Calm Calm - N/A   Overcast
3:35 AM 39.2 °F - 39.2 °F 100% 30.21 in 0.2 mi Calm Calm - N/A   Overcast
3:55 AM 39.2 °F - 39.2 °F 100% 30.22 in 0.2 mi Calm Calm - N/A   Overcast
4:15 AM 41.0 °F 38.0 °F 41.0 °F 100% 30.23 in 0.5 mi NNW 4.6 mph - N/A   Overcast
4:35 AM 41.0 °F 39.0 °F 41.0 °F 100% 30.23 in 10.0 mi WNW 3.5 mph - N/A   Overcast
4:55 AM 42.8 °F 40.1 °F 42.8 °F 100% 30.23 in 10.0 mi West 4.6 mph - N/A   Overcast
5:15 AM 44.6 °F 42.2 °F 44.6 °F 100% 30.23 in 10.0 mi West 4.6 mph - N/A   Overcast
5:35 AM 44.6 °F 42.2 °F 44.6 °F 100% 30.23 in 10.0 mi WNW 4.6 mph - N/A   Overcast
5:55 AM 44.6 °F 42.2 °F 44.6 °F 100% 30.24 in 10.0 mi WNW 4.6 mph - N/A   Overcast
6:15 AM 44.6 °F - 44.6 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Overcast
6:35 AM 46.4 °F 44.3 °F 46.4 °F 100% 30.24 in 10.0 mi West 4.6 mph - N/A   Overcast
6:55 AM 46.4 °F 45.2 °F 46.4 °F 100% 30.23 in 5.0 mi NW 3.5 mph - N/A   Overcast
7:15 AM 46.4 °F 45.2 °F 46.4 °F 100% 30.23 in 4.0 mi NNW 3.5 mph - N/A   Overcast
7:35 AM 46.4 °F - 46.4 °F 100% 30.24 in 5.0 mi Calm Calm - N/A   Overcast
7:55 AM 46.4 °F - 46.4 °F 100% 30.23 in 1.5 mi Calm Calm - N/A   Overcast
8:15 AM 46.4 °F - 46.4 °F 100% 30.23 in 0.8 mi Calm Calm - N/A   Overcast
8:35 AM 46.4 °F - 46.4 °F 100% 30.24 in 0.8 mi Calm Calm - N/A   Overcast
8:55 AM 48.2 °F - 48.2 °F 100% 30.24 in 4.0 mi Calm Calm - N/A   Overcast
9:15 AM 48.2 °F - 48.2 °F 100% 30.21 in 5.0 mi SE 6.9 mph - N/A   Overcast
9:35 AM 48.2 °F - 48.2 °F 100% 30.26 in 7.0 mi WSW 4.6 mph - N/A   Overcast
9:55 AM 48.2 °F - 48.2 °F 100% 30.26 in 10.0 mi Calm Calm - N/A   Overcast
10:10 AM 48.2 °F - 48.2 °F 100% 30.27 in 10.0 mi Calm Calm - N/A   Overcast
3:55 PM 55.4 °F - 55.4 °F 100% 30.19 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
4:15 PM 53.6 °F - 53.6 °F 100% 30.20 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
4:35 PM 53.6 °F - 53.6 °F 100% 30.20 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
4:55 PM 53.6 °F - 53.6 °F 100% 30.21 in 10.0 mi West 8.1 mph - N/A   Clear
5:15 PM 51.8 °F - 51.8 °F 100% 30.21 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
5:35 PM 50.0 °F - 50.0 °F 100% 30.22 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
5:55 PM 50.0 °F - 50.0 °F 100% 30.22 in 10.0 mi West 6.9 mph - N/A   Overcast
6:15 PM 50.0 °F - 50.0 °F 100% 30.23 in 10.0 mi NW 3.5 mph - N/A   Overcast
6:35 PM 48.2 °F - 48.2 °F 100% 30.23 in 10.0 mi NW 3.5 mph - N/A   Overcast
6:55 PM 48.2 °F - 48.2 °F 100% 30.24 in 10.0 mi NW 3.5 mph - N/A   Overcast
7:15 PM 50.0 °F - 50.0 °F 100% 30.25 in 10.0 mi North 3.5 mph - N/A   Overcast
7:35 PM 50.0 °F - 50.0 °F 100% 30.25 in 10.0 mi NW 3.5 mph - N/A   Overcast
7:55 PM 48.2 °F - 48.2 °F 100% 30.25 in 9.0 mi NW 3.5 mph - N/A   Overcast
8:15 PM 46.4 °F 45.2 °F 46.4 °F 100% 30.26 in 8.0 mi NNW 3.5 mph - N/A   Overcast
8:35 PM 48.2 °F - 48.2 °F 100% 30.26 in 8.0 mi NNW 3.5 mph - N/A   Overcast
8:55 PM 48.2 °F - 48.2 °F 100% 30.27 in 9.0 mi North 4.6 mph - N/A   Overcast
9:15 PM 48.2 °F - 48.2 °F 100% 30.28 in 8.0 mi North 3.5 mph - N/A   Overcast
9:35 PM 50.0 °F - 50.0 °F 100% 30.29 in 9.0 mi Calm Calm - N/A   Overcast
9:55 PM 50.0 °F - 50.0 °F 100% 30.29 in 10.0 mi NNW 3.5 mph - N/A   Overcast
10:15 PM 48.2 °F - 48.2 °F 100% 30.30 in 10.0 mi Calm Calm - N/A   Overcast
10:35 PM 46.4 °F - 46.4 °F 100% 30.30 in 8.0 mi Calm Calm - N/A   Overcast
10:55 PM 44.6 °F - 44.6 °F 100% 30.30 in 0.8 mi Calm Calm - N/A   Overcast
11:15 PM 41.0 °F 39.0 °F 41.0 °F 100% 30.30 in 2.0 mi NNE 3.5 mph - N/A   Overcast
11:35 PM 42.8 °F 41.1 °F 42.8 °F 100% 30.30 in 5.0 mi NW 3.5 mph - N/A   Overcast
11:55 PM 41.0 °F 39.0 °F 41.0 °F 100% 30.30 in 6.0 mi NNW 3.5 mph - N/A   Overcast