Weather History for Petersburg, AK

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Monday, February 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 38 °F -  
Max Temperature 42 °F 36 °F 48 °F (1998)
Min Temperature 33 °F 28 °F 6 °F (2011)
Degree Days  
Heating Degree Days 28    
Moisture  
Dew Point 32 °F    
Average Humidity 86    
Maximum Humidity 100    
Minimum Humidity 70    
Precipitation  
Precipitation 0.07 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.76 in    
Wind  
Wind Speed 2 mph (SW)    
Max Wind Speed 6 mph    
Max Gust Speed -    
Visibility 10 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

Feb. 18, 2013 Rise Set
Actual Time 7:11 AM AKST 5:01 PM AKST
Civil Twilight 6:31 AM AKST 5:40 PM AKST
Nautical Twilight 5:47 AM AKST 6:24 PM AKST
Astronomical Twilight 5:03 AM AKST 7:08 PM AKST
Moon 10:15 AM AKST (2/18) 2:32 AM AKST (2/18)
Length of Visible Light 11h 08m
Length of Day
9h 50m
First Quarter, 60% of the Moon is Illuminated
Feb 18
First Quarter
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter

Hourly Weather History & Observations

Time (AKST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:16 AM 33.8 °F 29.6 °F 30.2 °F 87% 29.76 in 10.0 mi WSW 4.6 mph - N/A   Overcast
12:36 AM 33.8 °F 28.6 °F 30.2 °F 87% 29.76 in 8.0 mi SW 5.8 mph - 0.01 in   Overcast
12:56 AM 33.8 °F - 30.2 °F 87% 29.76 in 10.0 mi Calm Calm - 0.02 in   Overcast
1:16 AM 33.8 °F 30.8 °F 30.2 °F 87% 29.76 in 10.0 mi SW 3.5 mph - N/A   Overcast
1:36 AM 33.8 °F 29.6 °F 30.2 °F 87% 29.75 in 10.0 mi SW 4.6 mph - 0.01 in   Overcast
1:56 AM 33.8 °F - 30.2 °F 87% 29.75 in 10.0 mi Calm Calm - 0.02 in   Overcast
2:16 AM 33.8 °F 30.8 °F 30.2 °F 87% 29.75 in 10.0 mi WSW 3.5 mph - N/A   Overcast
2:36 AM 33.8 °F - 30.2 °F 87% 29.74 in 10.0 mi Calm Calm - N/A   Overcast
3:16 AM 33.8 °F - 30.2 °F 87% 29.73 in 10.0 mi Calm Calm - 0.01 in   Overcast
3:36 AM 33.8 °F 30.8 °F 30.2 °F 87% 29.73 in 10.0 mi West 3.5 mph - 0.01 in   Overcast
3:56 AM 33.8 °F - 30.2 °F 87% 29.72 in 10.0 mi Calm Calm - 0.02 in   Overcast
4:16 AM 33.8 °F 30.8 °F 30.2 °F 87% 29.72 in 10.0 mi West 3.5 mph - N/A   Overcast
4:36 AM 33.8 °F 29.6 °F 30.2 °F 87% 29.72 in 10.0 mi SW 4.6 mph - N/A   Overcast
4:56 AM 33.8 °F 29.6 °F 30.2 °F 87% 29.72 in 10.0 mi WSW 4.6 mph - 0.01 in   Overcast
5:16 AM 33.8 °F 30.8 °F 30.2 °F 87% 29.72 in 9.0 mi WSW 3.5 mph - N/A   Overcast
5:36 AM 33.8 °F 30.8 °F 32.0 °F 93% 29.72 in 10.0 mi West 3.5 mph - N/A   Overcast
5:56 AM 33.8 °F - 30.2 °F 87% 29.72 in 10.0 mi Calm Calm - N/A   Overcast
6:16 AM 33.8 °F - 30.2 °F 87% 29.72 in 10.0 mi Calm Calm - N/A   Overcast
6:36 AM 33.8 °F - 32.0 °F 93% 29.72 in 10.0 mi Calm Calm - N/A   Overcast
6:56 AM 33.8 °F 28.6 °F 32.0 °F 93% 29.72 in 10.0 mi West 5.8 mph - N/A   Overcast
7:16 AM 35.6 °F 31.7 °F 32.0 °F 87% 29.72 in 10.0 mi SW 4.6 mph - N/A   Overcast
7:36 AM 35.6 °F - 32.0 °F 87% 29.72 in 10.0 mi Calm Calm - N/A   Overcast
7:56 AM 35.6 °F - 32.0 °F 87% 29.72 in 10.0 mi Calm Calm - N/A   Overcast
8:16 AM 35.6 °F - 32.0 °F 87% 29.72 in 10.0 mi Calm Calm - N/A   Overcast
8:36 AM 35.6 °F - 32.0 °F 87% 29.72 in 10.0 mi Calm Calm - N/A   Overcast
8:56 AM 35.6 °F - 32.0 °F 87% 29.72 in 10.0 mi Calm Calm - N/A   Overcast
9:16 AM 35.6 °F - 33.8 °F 93% 29.72 in 10.0 mi Calm Calm - N/A   Overcast
9:36 AM 37.4 °F - 33.8 °F 87% 29.73 in 10.0 mi Calm Calm - N/A   Overcast
9:56 AM 37.4 °F 33.8 °F 33.8 °F 87% 29.73 in 10.0 mi SW 4.6 mph - N/A   Overcast
10:16 AM 37.4 °F 32.8 °F 33.8 °F 87% 29.73 in 10.0 mi WSW 5.8 mph - N/A   Overcast
10:36 AM 39.2 °F 37.0 °F 33.8 °F 81% 29.73 in 10.0 mi SW 3.5 mph - N/A   Overcast
10:56 AM 39.2 °F 35.9 °F 35.6 °F 87% 29.73 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
11:16 AM 39.2 °F - 35.6 °F 87% 29.73 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:36 AM 41.0 °F - 35.6 °F 81% 29.74 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:56 AM 42.8 °F - 33.8 °F 70% 29.74 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:16 PM 42.8 °F 41.1 °F 35.6 °F 76% 29.75 in 10.0 mi West 3.5 mph - N/A   Mostly Cloudy
12:36 PM 41.0 °F - 33.8 °F 76% 29.75 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:56 PM 41.0 °F 37.1 °F 35.6 °F 81% 29.75 in 10.0 mi NE 5.8 mph - N/A   Mostly Cloudy
1:16 PM 41.0 °F 39.0 °F 33.8 °F 76% 29.75 in 10.0 mi NE 3.5 mph - N/A   Mostly Cloudy
1:36 PM 42.8 °F - 33.8 °F 70% 29.75 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:56 PM 42.8 °F 41.1 °F 33.8 °F 70% 29.75 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
2:16 PM 42.8 °F - 33.8 °F 70% 29.75 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:36 PM 41.0 °F - 33.8 °F 76% 29.75 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:56 PM 41.0 °F - 35.6 °F 81% 29.75 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:16 PM 41.0 °F 39.0 °F 35.6 °F 81% 29.75 in 10.0 mi South 3.5 mph - N/A   Scattered Clouds
3:36 PM 39.2 °F - 35.6 °F 87% 29.75 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:56 PM 37.4 °F 34.9 °F 33.8 °F 87% 29.75 in 10.0 mi SSE 3.5 mph - N/A   Scattered Clouds
4:16 PM 35.6 °F - 33.8 °F 93% 29.76 in 10.0 mi Calm Calm - N/A   Scattered Clouds
4:36 PM 35.6 °F - 33.8 °F 93% 29.76 in 10.0 mi Calm Calm - N/A   Scattered Clouds
4:56 PM 35.6 °F 32.8 °F 33.8 °F 93% 29.76 in 10.0 mi South 3.5 mph - N/A   Scattered Clouds
5:16 PM 33.8 °F 29.6 °F 30.2 °F 87% 29.77 in 10.0 mi South 4.6 mph - N/A   Scattered Clouds
5:36 PM 33.8 °F - 32.0 °F 93% 29.77 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:56 PM 33.8 °F - 30.2 °F 87% 29.78 in 10.0 mi Calm Calm - N/A   Scattered Clouds
6:16 PM 35.6 °F - 32.0 °F 87% 29.78 in 10.0 mi Calm Calm - N/A   Scattered Clouds
6:36 PM 35.6 °F - 32.0 °F 87% 29.78 in 10.0 mi Calm Calm - N/A   Scattered Clouds
6:56 PM 33.8 °F - 30.2 °F 87% 29.79 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:16 PM 33.8 °F - 32.0 °F 93% 29.79 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:36 PM 33.8 °F - 30.2 °F 87% 29.80 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:56 PM 35.6 °F - 33.8 °F 93% 29.81 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:16 PM 33.8 °F - 32.0 °F 93% 29.81 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:36 PM 33.8 °F - 30.2 °F 87% 29.81 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:56 PM 33.8 °F - 32.0 °F 93% 29.82 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:16 PM 33.8 °F - 30.2 °F 87% 29.82 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:36 PM 33.8 °F - 30.2 °F 87% 29.83 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:56 PM 33.8 °F - 30.2 °F 87% 29.84 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:16 PM 33.8 °F - 33.8 °F 100% 29.84 in 10.0 mi Calm Calm - N/A   Overcast
10:36 PM 33.8 °F - 32.0 °F 93% 29.85 in 10.0 mi Calm Calm - N/A   Overcast
10:56 PM 33.8 °F - 33.8 °F 100% 29.85 in 10.0 mi Calm Calm - N/A   Overcast
11:16 PM 35.6 °F - 32.0 °F 87% 29.85 in 10.0 mi Calm Calm - N/A   Overcast
11:36 PM 35.6 °F - 32.0 °F 87% 29.85 in 10.0 mi Calm Calm - N/A   Overcast
11:56 PM 33.8 °F 30.8 °F 30.2 °F 87% 29.86 in 10.0 mi South 3.5 mph - N/A   Overcast