Weather History for Petersburg, AK

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Saturday, December 8, 2012

  Actual Average Record
Temperature  
Mean Temperature 24 °F -  
Max Temperature 30 °F 35 °F 48 °F (2002)
Min Temperature 17 °F 29 °F 14 °F (1983)
Degree Days  
Heating Degree Days 42    
Moisture  
Dew Point 21 °F    
Average Humidity 88    
Maximum Humidity 93    
Minimum Humidity 80    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.13 in    
Wind  
Wind Speed 1 mph (WSW)    
Max Wind Speed 10 mph    
Max Gust Speed -    
Visibility 8 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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Date:

Astronomy

Dec. 08, 2012 Rise Set
Actual Time 8:15 AM AKST 3:12 PM AKST
Civil Twilight 7:27 AM AKST 4:00 PM AKST
Nautical Twilight 6:37 AM AKST 4:50 PM AKST
Astronomical Twilight 5:50 AM AKST 5:37 PM AKST
Moon 1:56 AM AKST (12/8) 12:33 PM AKST (12/8)
Length of Visible Light 8h 33m
Length of Day
6h 56m
Waning Crescent, 27% of the Moon is Illuminated
Dec 8
Waning Crescent
Dec 12
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last 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 21.2 °F - 17.6 °F 86% 30.15 in 10.0 mi Calm Calm - N/A   Overcast
12:36 AM 21.2 °F - 17.6 °F 86% 30.15 in 10.0 mi Calm Calm - N/A   Overcast
12:56 AM 21.2 °F - 17.6 °F 86% 30.16 in 10.0 mi Calm Calm - N/A   Overcast
1:16 AM 21.2 °F - 17.6 °F 86% 30.16 in 10.0 mi Calm Calm - N/A   Overcast
1:36 AM 21.2 °F 16.4 °F 17.6 °F 86% 30.17 in 10.0 mi WSW 3.5 mph - N/A   Overcast
1:56 AM 19.4 °F - 17.6 °F 93% 30.17 in 10.0 mi Calm Calm - N/A   Overcast
2:16 AM 19.4 °F - 17.6 °F 93% 30.18 in 10.0 mi Calm Calm - N/A   Overcast
2:36 AM 21.2 °F - 17.6 °F 86% 30.18 in 10.0 mi Calm Calm - N/A   Overcast
3:16 AM 21.2 °F - 19.4 °F 93% 30.18 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:36 AM 19.4 °F - 17.6 °F 93% 30.19 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:56 AM 19.4 °F - 15.8 °F 86% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
4:16 AM 19.4 °F - 17.6 °F 93% 30.19 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:36 AM 19.4 °F 14.3 °F 17.6 °F 93% 30.19 in 10.0 mi WSW 3.5 mph - N/A   Partly Cloudy
4:56 AM 17.6 °F 12.3 °F 15.8 °F 93% 30.19 in 10.0 mi WSW 3.5 mph - N/A   Clear
5:16 AM 19.4 °F - 17.6 °F 93% 30.19 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:36 AM 17.6 °F - 14.0 °F 86% 30.19 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:56 AM 19.4 °F - 15.8 °F 86% 30.19 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:16 AM 17.6 °F - 14.0 °F 86% 30.19 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:56 AM 19.4 °F - 15.8 °F 86% 30.19 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:16 AM 19.4 °F 14.3 °F 15.8 °F 86% 30.19 in 10.0 mi SW 3.5 mph - N/A   Scattered Clouds
7:36 AM 19.4 °F - 17.6 °F 93% 30.19 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:56 AM 19.4 °F - 15.8 °F 86% 30.19 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:16 AM 19.4 °F - 17.6 °F 93% 30.19 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:36 AM 19.4 °F - 17.6 °F 93% 30.19 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:56 AM 21.2 °F 16.4 °F 17.6 °F 86% 30.19 in 10.0 mi SSW 3.5 mph - N/A   Scattered Clouds
9:16 AM 21.2 °F - 17.6 °F 86% 30.20 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:36 AM 21.2 °F - 19.4 °F 93% 30.21 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:56 AM 21.2 °F 16.4 °F 19.4 °F 93% 30.21 in 10.0 mi SW 3.5 mph - N/A   Mostly Cloudy
10:16 AM 21.2 °F - 19.4 °F 93% 30.22 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:36 AM 21.2 °F 16.4 °F 17.6 °F 86% 30.22 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
10:56 AM 23.0 °F - 19.4 °F 86% 30.22 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:16 AM 21.2 °F - 19.4 °F 93% 30.21 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:36 AM 23.0 °F - 19.4 °F 86% 30.20 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:56 AM 23.0 °F 18.4 °F 19.4 °F 86% 30.20 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
12:16 PM 24.8 °F 20.5 °F 21.2 °F 86% 30.20 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
12:36 PM 24.8 °F 19.1 °F 19.4 °F 80% 30.19 in 10.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
12:56 PM 24.8 °F 20.5 °F 19.4 °F 80% 30.20 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
1:16 PM 24.8 °F - 21.2 °F 86% 30.20 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:36 PM 24.8 °F 20.5 °F 21.2 °F 86% 30.20 in 10.0 mi SW 3.5 mph - N/A   Mostly Cloudy
1:56 PM 24.8 °F - 21.2 °F 86% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
2:16 PM 24.8 °F 20.5 °F 21.2 °F 86% 30.19 in 10.0 mi WSW 3.5 mph - N/A   Overcast
2:36 PM 24.8 °F 19.1 °F 21.2 °F 86% 30.18 in 10.0 mi WSW 4.6 mph - N/A   Overcast
2:56 PM 24.8 °F 20.5 °F 21.2 °F 86% 30.17 in 10.0 mi WSW 3.5 mph - N/A   Overcast
3:16 PM 24.8 °F - 21.2 °F 86% 30.16 in 10.0 mi Calm Calm - N/A   Overcast
3:56 PM 24.8 °F - 21.2 °F 86% 30.14 in 10.0 mi Calm Calm - N/A   Overcast
4:16 PM 24.8 °F 19.1 °F 21.2 °F 86% 30.14 in 10.0 mi West 4.6 mph - N/A   Overcast
4:56 PM 26.6 °F - 21.2 °F 80% 30.12 in 10.0 mi Calm Calm - N/A   Overcast
5:16 PM 26.6 °F - 21.2 °F 80% 30.12 in 10.0 mi Calm Calm - N/A   Overcast
5:36 PM 26.6 °F 22.6 °F 21.2 °F 80% 30.11 in 10.0 mi WSW 3.5 mph - N/A   Overcast
5:56 PM 26.6 °F 21.2 °F 21.2 °F 80% 30.10 in 10.0 mi West 4.6 mph - N/A   Overcast
6:16 PM 26.6 °F 20.0 °F 23.0 °F 86% 30.10 in 7.0 mi WSW 5.8 mph - N/A   Overcast
6:36 PM 26.6 °F - 23.0 °F 86% 30.08 in 7.0 mi Calm Calm - N/A   Overcast
6:56 PM 26.6 °F - 23.0 °F 86% 30.08 in 4.0 mi Calm Calm - N/A   Overcast
7:16 PM 26.6 °F 20.0 °F 24.8 °F 93% 30.06 in 4.0 mi NE 5.8 mph - N/A   Overcast
7:36 PM 28.4 °F 19.1 °F 24.8 °F 86% 30.03 in 4.0 mi ENE 10.4 mph - N/A   Overcast
7:56 PM 30.2 °F 22.6 °F 24.8 °F 80% 30.02 in 4.0 mi East 8.1 mph - N/A   Overcast
8:16 PM 30.2 °F 25.4 °F 26.6 °F 86% 30.01 in 4.0 mi East 4.6 mph - N/A   Overcast
8:36 PM 30.2 °F 26.7 °F 26.6 °F 86% 29.99 in 4.0 mi ENE 3.5 mph - N/A   Overcast
8:56 PM 30.2 °F 24.3 °F 26.6 °F 86% 29.97 in 1.5 mi East 5.8 mph - N/A   Overcast
9:16 PM 30.2 °F - 26.6 °F 86% 29.97 in 1.5 mi Calm Calm - N/A   Overcast
9:36 PM 30.2 °F - 26.6 °F 86% 29.95 in 1.5 mi Calm Calm - N/A   Overcast
9:56 PM 30.2 °F 26.7 °F 26.6 °F 86% 29.95 in 1.2 mi North 3.5 mph - N/A   Overcast
10:16 PM 30.2 °F 23.4 °F 26.6 °F 86% 29.95 in 1.2 mi North 6.9 mph - N/A   Overcast
10:36 PM 30.2 °F 24.3 °F 28.4 °F 93% 29.94 in 1.2 mi NE 5.8 mph - N/A   Overcast
10:56 PM 30.2 °F 24.3 °F 28.4 °F 93% 29.91 in 1.2 mi NNE 5.8 mph - N/A   Overcast
11:16 PM 30.2 °F 21.3 °F 28.4 °F 93% 29.87 in 0.8 mi East 10.4 mph - N/A   Overcast
11:36 PM 30.2 °F 25.4 °F 28.4 °F 93% 29.87 in 0.8 mi SSW 4.6 mph - N/A   Overcast
11:56 PM 30.2 °F - 28.4 °F 93% 29.86 in 0.5 mi Calm Calm - N/A   Overcast