Weather History for Petersburg, AK

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Wednesday, April 17, 2013

  Actual Average Record
Temperature  
Mean Temperature 42 °F -  
Max Temperature 48 °F 45 °F 59 °F (1991)
Min Temperature 35 °F 32 °F 26 °F (2011)
Degree Days  
Heating Degree Days 24    
Moisture  
Dew Point 37 °F    
Average Humidity 86    
Maximum Humidity 93    
Minimum Humidity 76    
Precipitation  
Precipitation 0.32 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 2 mph (ESE)    
Max Wind Speed 9 mph    
Max Gust Speed -    
Visibility 8 miles    
Events Rain    
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

Apr. 17, 2013 Rise Set
Actual Time 5:37 AM AKDT 8:06 PM AKDT
Civil Twilight 4:56 AM AKDT 8:48 PM AKDT
Nautical Twilight 4:02 AM AKDT 9:42 PM AKDT
Astronomical Twilight 2:53 AM AKDT 10:52 PM AKDT
Moon 10:36 AM AKDT (4/17) 2:12 AM AKDT (4/17)
Length of Visible Light 15h 51m
Length of Day
14h 28m
Waxing Crescent, 44% of the Moon is Illuminated
Apr 17
Waxing Crescent
Apr 18
First Quarter
Apr 25
Full
May 2
Last Quarter
May 9
New

Hourly Weather History & Observations

Time (AKDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:16 AM 39.2 °F - 33.8 °F 81% 30.11 in 7.0 mi Calm Calm - 0.01 in   Overcast
12:36 AM 37.4 °F 34.9 °F 33.8 °F 87% 30.10 in 5.0 mi ESE 3.5 mph - 0.02 in   Overcast
12:56 AM 39.2 °F 35.9 °F 33.8 °F 81% 30.09 in 7.0 mi ESE 4.6 mph - 0.03 in   Overcast
1:16 AM 37.4 °F - 33.8 °F 87% 30.08 in 10.0 mi Calm Calm - 0.01 in   Overcast
1:36 AM 39.2 °F - 33.8 °F 81% 30.08 in 10.0 mi Calm Calm - 0.03 in   Overcast
1:56 AM 39.2 °F 35.9 °F 33.8 °F 81% 30.07 in 5.0 mi SSE 4.6 mph - 0.04 in   Overcast
2:16 AM 37.4 °F 32.8 °F 33.8 °F 87% 30.06 in 9.0 mi SSE 5.8 mph - 0.02 in   Overcast
2:36 AM 39.2 °F - 33.8 °F 81% 30.05 in 10.0 mi Calm Calm - 0.03 in   Overcast
2:56 AM 39.2 °F 37.0 °F 33.8 °F 81% 30.05 in 9.0 mi South 3.5 mph - 0.04 in   Overcast
3:16 AM 37.4 °F - 33.8 °F 87% 30.05 in 10.0 mi Calm Calm - 0.02 in   Overcast
3:36 AM 37.4 °F 33.8 °F 33.8 °F 87% 30.04 in 10.0 mi NNW 4.6 mph - 0.03 in   Overcast
3:56 AM 37.4 °F - 33.8 °F 87% 30.05 in 9.0 mi Calm Calm - 0.04 in   Overcast
4:16 AM 37.4 °F - 33.8 °F 87% 30.04 in 7.0 mi Calm Calm - 0.01 in   Overcast
4:36 AM 37.4 °F 32.8 °F 33.8 °F 87% 30.05 in 10.0 mi South 5.8 mph - 0.02 in   Overcast
4:56 AM 37.4 °F - 33.8 °F 87% 30.04 in 10.0 mi Calm Calm - 0.04 in   Overcast
5:16 AM 35.6 °F - 33.8 °F 93% 30.04 in 10.0 mi Calm Calm - 0.01 in   Overcast
5:36 AM 35.6 °F - 33.8 °F 93% 30.04 in 10.0 mi Calm Calm - 0.02 in   Overcast
6:16 AM 37.4 °F 34.9 °F 33.8 °F 87% 30.04 in 7.0 mi SSW 3.5 mph - 0.02 in   Overcast
6:36 AM 35.6 °F 31.7 °F 33.8 °F 93% 30.05 in 7.0 mi SSW 4.6 mph - 0.04 in   Overcast
6:56 AM 35.6 °F - 33.8 °F 93% 30.05 in 7.0 mi Calm Calm - 0.05 in   Overcast
7:16 AM 35.6 °F - 33.8 °F 93% 30.05 in 7.0 mi Calm Calm - N/A   Overcast
7:36 AM 37.4 °F - 33.8 °F 87% 30.05 in 7.0 mi Calm Calm - 0.01 in   Overcast
7:56 AM 37.4 °F - 33.8 °F 87% 30.05 in 10.0 mi Calm Calm - 0.01 in   Overcast
8:16 AM 37.4 °F 33.8 °F 35.6 °F 93% 30.06 in 10.0 mi SW 4.6 mph - 0.01 in   Overcast
8:36 AM 39.2 °F - 33.8 °F 81% 30.06 in 10.0 mi Calm Calm - 0.01 in   Overcast
8:56 AM 39.2 °F 37.0 °F 35.6 °F 87% 30.05 in 10.0 mi WSW 3.5 mph - 0.01 in   Overcast
9:16 AM 39.2 °F - 35.6 °F 87% 30.05 in 10.0 mi Calm Calm - N/A   Overcast
9:36 AM 39.2 °F - 35.6 °F 87% 30.05 in 10.0 mi Calm Calm - N/A   Overcast
9:56 AM - - - N/A% - - North - - N/A   Unknown
10:16 AM 39.2 °F 37.0 °F 35.6 °F 87% 30.05 in 10.0 mi SE 3.5 mph - N/A Rain Light Rain Showers
10:56 AM 42.8 °F 40.1 °F 37.4 °F 81% 30.07 in 10.0 mi West 4.6 mph - N/A   Mostly Cloudy
11:16 AM 42.8 °F 38.6 °F 37.4 °F 81% 30.07 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
11:36 AM 42.8 °F 39.3 °F 37.4 °F 81% 30.08 in 10.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
11:56 AM 42.8 °F 40.1 °F 37.4 °F 81% 30.08 in 7.0 mi West 4.6 mph - N/A   Overcast
12:36 PM 42.8 °F 41.1 °F 39.2 °F 87% 30.09 in 7.0 mi ENE 3.5 mph - N/A   Overcast
12:56 PM 42.8 °F 38.6 °F 39.2 °F 87% 30.09 in 4.0 mi ENE 6.9 mph - N/A   Overcast
1:16 PM 44.6 °F 40.7 °F 39.2 °F 81% 30.09 in 4.0 mi East 6.9 mph - N/A   Overcast
1:36 PM 44.6 °F 40.7 °F 39.2 °F 81% 30.10 in 4.0 mi East 6.9 mph - N/A   Overcast
1:56 PM 44.6 °F 40.2 °F 39.2 °F 81% 30.10 in 3.0 mi East 8.1 mph - N/A   Overcast
2:16 PM 44.6 °F 39.7 °F 39.2 °F 81% 30.11 in 3.0 mi ENE 9.2 mph - N/A   Overcast
2:36 PM 44.6 °F 39.7 °F 39.2 °F 81% 30.10 in 3.0 mi ENE 9.2 mph - N/A   Overcast
2:56 PM 44.6 °F 39.7 °F 41.0 °F 87% 30.10 in 3.0 mi East 9.2 mph - N/A   Overcast
3:16 PM 44.6 °F 40.7 °F 41.0 °F 87% 30.10 in 3.0 mi ENE 6.9 mph - N/A   Overcast
3:36 PM 46.4 °F - 39.2 °F 76% 30.10 in 3.0 mi Calm Calm - N/A   Overcast
3:56 PM 46.4 °F 44.3 °F 41.0 °F 81% 30.11 in 3.0 mi ENE 4.6 mph - N/A   Overcast
4:16 PM 44.6 °F - 41.0 °F 87% 30.11 in 3.0 mi Calm Calm - N/A   Overcast
4:36 PM 44.6 °F - 41.0 °F 87% 30.11 in 3.0 mi Calm Calm - 0.01 in   Overcast
4:56 PM 46.4 °F 45.2 °F 42.8 °F 87% 30.12 in 5.0 mi East 3.5 mph - 0.03 in   Mostly Cloudy
5:16 PM 46.4 °F 43.5 °F 42.8 °F 87% 30.12 in 5.0 mi ENE 5.8 mph - N/A   Mostly Cloudy
5:36 PM 46.4 °F 44.3 °F 42.8 °F 87% 30.12 in 5.0 mi ENE 4.6 mph - N/A   Mostly Cloudy
5:56 PM 46.4 °F - 42.8 °F 87% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:16 PM 48.2 °F - 42.8 °F 82% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:36 PM 46.4 °F - 42.8 °F 87% 30.12 in 10.0 mi Calm Calm - 0.01 in   Mostly Cloudy
6:56 PM 46.4 °F 45.2 °F 42.8 °F 87% 30.12 in 10.0 mi ENE 3.5 mph - 0.01 in   Mostly Cloudy
7:16 PM 46.4 °F - 41.0 °F 81% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:36 PM 44.6 °F - 41.0 °F 87% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:56 PM 44.6 °F 43.1 °F 39.2 °F 81% 30.12 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
8:16 PM 42.8 °F - 39.2 °F 87% 30.13 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:36 PM 42.8 °F - 39.2 °F 87% 30.14 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:56 PM 42.8 °F 41.1 °F 39.2 °F 87% 30.14 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
9:16 PM 42.8 °F - 39.2 °F 87% 30.14 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:36 PM 41.0 °F - 37.4 °F 87% 30.14 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:56 PM 41.0 °F - 39.2 °F 93% 30.14 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:16 PM 41.0 °F - 37.4 °F 87% 30.14 in 10.0 mi Calm Calm - N/A   Overcast
10:36 PM 42.8 °F - 39.2 °F 87% 30.14 in 10.0 mi Calm Calm - N/A   Overcast
10:56 PM 42.8 °F - 39.2 °F 87% 30.14 in 10.0 mi Calm Calm - N/A   Overcast
11:16 PM 42.8 °F - 39.2 °F 87% 30.14 in 10.0 mi Calm Calm - N/A   Overcast
11:36 PM 41.0 °F - 37.4 °F 87% 30.13 in 10.0 mi Calm Calm - N/A   Overcast
11:56 PM 41.0 °F - 37.4 °F 87% 30.13 in 10.0 mi Calm Calm - N/A   Overcast