Weather History for Petersburg, AK

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Sunday, September 15, 2013

  Actual Average Record
Temperature  
Mean Temperature 52 °F -  
Max Temperature 59 °F 53 °F 65 °F (1986)
Min Temperature 44 °F 43 °F 32 °F (2006)
Degree Days  
Heating Degree Days 14    
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 46 °F    
Average Humidity 78    
Maximum Humidity 93    
Minimum Humidity 67    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.64 in    
Wind  
Wind Speed 3 mph (ENE)    
Max Wind Speed 6 mph    
Max Gust Speed -    
Visibility 10 miles    
Events Fog    
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Sep. 15, 2013 Rise Set
Actual Time 6:23 AM AKDT 7:08 PM AKDT
Civil Twilight 5:45 AM AKDT 7:47 PM AKDT
Nautical Twilight 4:58 AM AKDT 8:33 PM AKDT
Astronomical Twilight 4:07 AM AKDT 9:24 PM AKDT
Moon 5:13 PM AKDT (9/15) 1:30 AM AKDT (9/15)
Length of Visible Light 14h 02m
Length of Day
12h 45m
Waxing Gibbous, 83% of the Moon is Illuminated
Sep 15
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Hourly Weather History & Observations

Time (AKDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
5:55 AM 46.4 °F 45.2 °F 44.6 °F 93% 29.73 in 10.0 mi ENE 3.5 mph - N/A Fog Patches of Fog
6:16 AM 46.4 °F - 42.8 °F 87% 29.73 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:56 AM 44.6 °F 43.1 °F 41.0 °F 87% 29.72 in 10.0 mi SW 3.5 mph - N/A Fog Patches of Fog
7:36 AM 48.2 °F - 46.4 °F 93% 29.72 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:55 AM 50.0 °F - 46.4 °F 87% 29.71 in 10.0 mi NE 3.5 mph - N/A   Clear
8:55 AM 51.8 °F - 46.4 °F 82% 29.70 in 10.0 mi NE 4.6 mph - N/A   Clear
9:16 AM 51.8 °F - 46.4 °F 82% 29.70 in 10.0 mi NE 5.8 mph - N/A   Clear
9:36 AM 51.8 °F - 46.4 °F 82% 29.70 in 10.0 mi ENE 5.8 mph - N/A   Clear
9:56 AM 51.8 °F - 46.4 °F 82% 29.70 in 10.0 mi NE 4.6 mph - N/A   Clear
11:16 AM 55.4 °F - 48.2 °F 77% 29.67 in 10.0 mi ENE 5.8 mph - N/A   Clear
11:50 AM 55.4 °F - 48.2 °F 77% 29.67 in 10.0 mi NNE 5.8 mph - N/A   Clear
11:56 AM 57.2 °F - 48.2 °F 72% 29.67 in 10.0 mi ENE 5.8 mph - N/A   Clear
12:36 PM 55.4 °F - 48.2 °F 77% 29.66 in 10.0 mi ENE 5.8 mph - N/A   Clear
12:55 PM 57.2 °F - 48.2 °F 72% 29.65 in 10.0 mi NNE 5.8 mph - N/A   Clear
1:46 PM 57.2 °F - 46.4 °F 67% 29.63 in 10.0 mi NE 5.8 mph - N/A   Clear
1:56 PM 59.0 °F - 48.2 °F 67% 29.63 in - ENE 4.6 mph - N/A   Clear
2:16 PM 57.2 °F - 48.2 °F 72% 29.62 in 10.0 mi NE 4.6 mph - N/A   Clear
2:56 PM 59.0 °F - 48.2 °F 67% 29.61 in 10.0 mi ENE 4.6 mph - N/A   Scattered Clouds
3:56 PM 55.4 °F - 46.4 °F 72% 29.59 in 10.0 mi ENE 5.8 mph - N/A   Scattered Clouds
4:16 PM 57.2 °F - 46.4 °F 67% 29.59 in 10.0 mi ENE 4.6 mph - N/A   Scattered Clouds
4:56 PM 55.4 °F - 44.6 °F 67% 29.58 in 10.0 mi East 4.6 mph - N/A   Mostly Cloudy
5:36 PM 55.4 °F - 46.4 °F 72% 29.58 in 10.0 mi East 4.6 mph - N/A   Mostly Cloudy
5:53 PM 55.4 °F - 44.6 °F 67% 29.58 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:36 PM 53.6 °F - 46.4 °F 77% 29.58 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:53 PM 53.6 °F - 46.4 °F 77% 29.57 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:36 PM 53.6 °F - 46.4 °F 77% 29.58 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:16 PM 51.8 °F - 46.4 °F 82% 29.58 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:56 PM 51.8 °F - 46.4 °F 82% 29.58 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:16 PM 51.8 °F - 46.4 °F 82% 29.59 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:36 PM 51.8 °F - 46.4 °F 82% 29.59 in 10.0 mi Calm Calm - N/A   Overcast
11:16 PM 53.6 °F - 46.4 °F 77% 29.60 in 10.0 mi Calm Calm - N/A   Overcast
11:36 PM 53.6 °F - 46.4 °F 77% 29.60 in 10.0 mi Calm Calm - N/A   Overcast