Weather History for Petersburg, AK

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Friday, August 30, 2013

  Actual Average Record
Temperature  
Mean Temperature 58 °F -  
Max Temperature 66 °F 56 °F 70 °F (1987)
Min Temperature 51 °F 46 °F 40 °F (1986)
Degree Days  
Heating Degree Days 6    
Growing Degree Days 8 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 88    
Maximum Humidity 94    
Minimum Humidity 64    
Precipitation  
Precipitation 0.15 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.93 in    
Wind  
Wind Speed 1 mph (South)    
Max Wind Speed 8 mph    
Max Gust Speed -    
Visibility 9 miles    
Events      
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

Aug. 30, 2013 Rise Set
Actual Time 5:51 AM AKDT 7:52 PM AKDT
Civil Twilight 5:10 AM AKDT 8:32 PM AKDT
Nautical Twilight 4:18 AM AKDT 9:23 PM AKDT
Astronomical Twilight 3:16 AM AKDT 10:25 PM AKDT
Moon No Moon Rise 4:48 PM AKDT (8/30)
Length of Visible Light 15h 22m
Length of Day
14h 00m
Waning Crescent, 28% of the Moon is Illuminated
Aug 30
Waning Crescent
Sep 5
New
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter

Hourly Weather History & Observations

Time (AKDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:16 AM 53.6 °F 48.2 °F 82% 29.76 in 10.0 mi Calm Calm - N/A   Overcast
12:36 AM 53.6 °F 50.0 °F 88% 29.76 in 10.0 mi Calm Calm - N/A   Overcast
2:16 AM 53.6 °F 48.2 °F 82% 29.77 in 10.0 mi ESE 3.5 mph - N/A   Overcast
2:36 AM 55.4 °F 50.0 °F 82% 29.77 in 10.0 mi Calm Calm - N/A   Overcast
2:56 AM 55.4 °F 50.0 °F 82% 29.77 in 10.0 mi Calm Calm - N/A   Overcast
3:56 AM 55.4 °F 51.8 °F 88% 29.79 in 10.0 mi East 3.5 mph - N/A   Overcast
4:36 AM 55.4 °F 48.2 °F 77% 29.80 in 10.0 mi Calm Calm - N/A   Overcast
5:16 AM 53.6 °F 51.8 °F 94% 29.82 in 10.0 mi Calm Calm - N/A   Overcast
5:36 AM 53.6 °F 51.8 °F 94% 29.82 in 10.0 mi Calm Calm - N/A   Overcast
5:56 AM 53.6 °F 50.0 °F 88% 29.83 in 10.0 mi Calm Calm - N/A   Overcast
6:16 AM 53.6 °F 50.0 °F 88% 29.83 in 10.0 mi Calm Calm - N/A   Overcast
6:36 AM 53.6 °F 51.8 °F 94% 29.84 in 10.0 mi Calm Calm - N/A   Overcast
6:56 AM 53.6 °F 51.8 °F 94% 29.85 in 10.0 mi Calm Calm - 0.02 in   Overcast
7:16 AM 53.6 °F 50.0 °F 88% 29.85 in 10.0 mi Calm Calm - 0.03 in   Overcast
7:36 AM 51.8 °F 48.2 °F 88% 29.86 in 10.0 mi Calm Calm - 0.04 in   Overcast
7:56 AM 51.8 °F 48.2 °F 88% 29.87 in 10.0 mi Calm Calm - 0.08 in   Overcast
8:16 AM 51.8 °F 50.0 °F 94% 29.88 in 10.0 mi Calm Calm - N/A   Overcast
8:56 AM 53.6 °F 50.0 °F 88% 29.89 in 5.0 mi Calm Calm - 0.02 in   Overcast
9:36 AM 53.6 °F 51.8 °F 94% 29.91 in 5.0 mi East 3.5 mph - 0.01 in   Overcast
10:16 AM 53.6 °F 51.8 °F 94% 29.92 in 3.0 mi Calm Calm - N/A   Overcast
10:36 AM 53.6 °F 51.8 °F 94% 29.93 in 3.0 mi Calm Calm - N/A   Overcast
10:56 AM 53.6 °F 51.8 °F 94% 29.93 in 3.0 mi Calm Calm - N/A   Overcast
11:36 AM 55.4 °F 53.6 °F 94% 29.95 in 7.0 mi Calm Calm - N/A   Overcast
11:56 AM 55.4 °F 53.6 °F 94% 29.96 in 10.0 mi West 4.6 mph - 0.02 in   Overcast
12:16 PM 57.2 °F 55.4 °F 94% 29.96 in 10.0 mi Calm Calm - N/A   Overcast
12:36 PM 59.0 °F 55.4 °F 88% 29.97 in 10.0 mi WNW 3.5 mph - N/A   Overcast
12:56 PM 60.8 °F 55.4 °F 82% 29.97 in 10.0 mi West 3.5 mph - N/A   Mostly Cloudy
1:36 PM 60.8 °F 55.4 °F 82% 29.98 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:56 PM 62.6 °F 55.4 °F 77% 29.98 in 10.0 mi West 3.5 mph - N/A   Mostly Cloudy
2:16 PM 62.6 °F 55.4 °F 77% 29.98 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:56 PM 64.4 °F 55.4 °F 73% 29.98 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:36 PM 66.2 °F 53.6 °F 64% 29.99 in 10.0 mi SE 5.8 mph - N/A   Mostly Cloudy
4:16 PM 60.8 °F 53.6 °F 77% 29.99 in 10.0 mi NE 4.6 mph - N/A   Mostly Cloudy
4:56 PM 60.8 °F 53.6 °F 77% 29.99 in 10.0 mi ENE 3.5 mph - N/A   Overcast
6:36 PM 60.8 °F 55.4 °F 82% 30.00 in 10.0 mi SSW 4.6 mph - N/A   Overcast
7:36 PM 59.0 °F 55.4 °F 88% 30.02 in 10.0 mi SW 8.1 mph - N/A   Overcast
7:56 PM 59.0 °F 55.4 °F 88% 30.02 in 10.0 mi West 3.5 mph - N/A   Overcast
8:16 PM 57.2 °F 55.4 °F 94% 30.02 in 10.0 mi Calm Calm - N/A   Overcast
8:36 PM 57.2 °F 55.4 °F 94% 30.02 in 10.0 mi SSE 5.8 mph - N/A   Overcast
8:56 PM 57.2 °F 55.4 °F 94% 30.02 in 10.0 mi SSE 4.6 mph - N/A   Overcast
9:16 PM 57.2 °F 55.4 °F 94% 30.02 in 10.0 mi SSE 4.6 mph - N/A   Overcast
9:56 PM 57.2 °F 55.4 °F 94% 30.03 in 10.0 mi Calm Calm - N/A   Overcast
10:16 PM 57.2 °F 55.4 °F 94% 30.03 in 8.0 mi Calm Calm - N/A   Overcast
10:56 PM 55.4 °F 51.8 °F 88% 30.04 in 10.0 mi Calm Calm - N/A   Overcast
11:16 PM 55.4 °F 51.8 °F 88% 30.04 in 10.0 mi Calm Calm - N/A   Overcast
11:36 PM 55.4 °F 53.6 °F 94% 30.04 in 10.0 mi South 4.6 mph - N/A   Overcast
11:56 PM 55.4 °F 53.6 °F 94% 30.04 in 10.0 mi Calm Calm - N/A   Overcast