Weather History for Petersburg, AK

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Thursday, March 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 28 °F -  
Max Temperature 33 °F 38 °F 52 °F (1987)
Min Temperature 24 °F 28 °F 10 °F (2001)
Degree Days  
Heating Degree Days 36    
Moisture  
Dew Point 22 °F    
Average Humidity 76    
Maximum Humidity 93    
Minimum Humidity 60    
Precipitation  
Precipitation 0.01 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.01 in    
Wind  
Wind Speed 2 mph (SW)    
Max Wind Speed 7 mph    
Max Gust Speed -    
Visibility 9 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

Mar. 21, 2013 Rise Set
Actual Time 6:50 AM AKDT 7:08 PM AKDT
Civil Twilight 6:12 AM AKDT 7:47 PM AKDT
Nautical Twilight 5:26 AM AKDT 8:32 PM AKDT
Astronomical Twilight 4:38 AM AKDT 9:21 PM AKDT
Moon 12:50 PM AKDT (3/21) 4:13 AM AKDT (3/21)
Length of Visible Light 13h 34m
Length of Day
12h 18m
Waxing Gibbous, 70% of the Moon is Illuminated
Mar 21
Waxing Gibbous
Mar 27
Full
Apr 2
Last Quarter
Apr 10
New
Apr 18
First Quarter

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 24.8 °F - 19.4 °F 80% 29.78 in 10.0 mi Calm Calm - N/A   Overcast
12:36 AM 24.8 °F - 21.2 °F 86% 29.78 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:56 AM 24.8 °F - 21.2 °F 86% 29.79 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:16 AM 24.8 °F 20.5 °F 21.2 °F 86% 29.79 in 10.0 mi West 3.5 mph - N/A   Overcast
1:36 AM 24.8 °F 19.1 °F 19.4 °F 80% 29.79 in 10.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
1:56 AM 24.8 °F - 21.2 °F 86% 29.80 in 10.0 mi Calm Calm - N/A   Overcast
2:16 AM 24.8 °F - 21.2 °F 86% 29.81 in 10.0 mi Calm Calm - N/A   Overcast
2:36 AM 26.6 °F 22.6 °F 19.4 °F 74% 29.81 in 10.0 mi WSW 3.5 mph - N/A   Overcast
2:56 AM 26.6 °F 22.6 °F 21.2 °F 80% 29.82 in 10.0 mi West 3.5 mph - N/A   Overcast
3:16 AM 28.4 °F 24.6 °F 19.4 °F 69% 29.83 in 10.0 mi East 3.5 mph - N/A   Overcast
3:36 AM 28.4 °F - 17.6 °F 64% 29.84 in 10.0 mi Calm Calm - N/A   Overcast
3:56 AM 26.6 °F 22.6 °F 21.2 °F 80% 29.84 in 10.0 mi WNW 3.5 mph - N/A   Overcast
4:16 AM 26.6 °F - 21.2 °F 80% 29.85 in 5.0 mi Calm Calm - N/A   Overcast
4:36 AM 26.6 °F - 21.2 °F 80% 29.85 in 5.0 mi Calm Calm - N/A   Overcast
4:56 AM 26.6 °F 21.2 °F 21.2 °F 80% 29.85 in 2.5 mi NNE 4.6 mph - N/A   Overcast
5:16 AM 26.6 °F 21.2 °F 21.2 °F 80% 29.86 in 5.0 mi West 4.6 mph - N/A   Overcast
5:36 AM 26.6 °F - 21.2 °F 80% 29.87 in 5.0 mi Calm Calm - N/A   Overcast
5:56 AM 26.6 °F - 21.2 °F 80% 29.87 in 10.0 mi Calm Calm - N/A   Overcast
6:16 AM 26.6 °F 22.6 °F 21.2 °F 80% 29.87 in 10.0 mi SW 3.5 mph - N/A   Overcast
6:36 AM 26.6 °F - 21.2 °F 80% 29.88 in 2.5 mi Calm Calm - N/A   Overcast
6:56 AM 26.6 °F 21.2 °F 21.2 °F 80% 29.89 in 7.0 mi SW 4.6 mph - N/A   Overcast
7:16 AM 26.6 °F 22.6 °F 21.2 °F 80% 29.89 in 7.0 mi SSW 3.5 mph - N/A   Overcast
7:36 AM 26.6 °F - 23.0 °F 86% 29.90 in 7.0 mi Calm Calm - N/A   Overcast
8:16 AM - - - N/A% 29.91 in 2.5 mi Calm Calm - N/A   Overcast
8:36 AM 26.6 °F - 23.0 °F 86% 29.92 in 10.0 mi Calm Calm - N/A   Overcast
8:56 AM 26.6 °F 22.6 °F 24.8 °F 93% 29.94 in 10.0 mi WSW 3.5 mph - N/A   Overcast
9:16 AM 26.6 °F - 23.0 °F 86% 29.94 in 10.0 mi Calm Calm - N/A   Overcast
9:36 AM 28.4 °F - 24.8 °F 86% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
9:56 AM 28.4 °F - 24.8 °F 86% 29.96 in 7.0 mi Calm Calm - N/A   Overcast
10:16 AM 28.4 °F 24.6 °F 24.8 °F 86% 29.97 in 7.0 mi NNW 3.5 mph - N/A   Overcast
10:36 AM 28.4 °F - 24.8 °F 86% 29.98 in 7.0 mi Calm Calm - 0.01 in   Overcast
10:56 AM 28.4 °F - 23.0 °F 80% 29.99 in 10.0 mi Calm Calm - 0.01 in   Mostly Cloudy
11:16 AM 30.2 °F - 21.2 °F 69% 30.00 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:36 AM 30.2 °F - 23.0 °F 75% 30.00 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:56 AM 30.2 °F - 23.0 °F 75% 30.01 in 10.0 mi Calm Calm - N/A   Overcast
12:16 PM 30.2 °F 26.7 °F 23.0 °F 75% 30.02 in 10.0 mi WSW 3.5 mph - N/A   Overcast
2:26 PM 32.0 °F - 21.2 °F 64% 30.07 in 10.0 mi Calm Calm - N/A Rain Light Rain Showers
3:36 PM 33.8 °F 27.7 °F 21.2 °F 60% 30.09 in 10.0 mi ENE 6.9 mph - N/A   Mostly Cloudy
3:56 PM 32.0 °F 26.4 °F 23.0 °F 69% 30.10 in 10.0 mi East 5.8 mph - N/A   Scattered Clouds
4:16 PM 32.0 °F 25.6 °F 23.0 °F 69% 30.11 in 10.0 mi East 6.9 mph - N/A   Scattered Clouds
4:36 PM 33.8 °F 30.8 °F 24.8 °F 70% 30.12 in 10.0 mi East 3.5 mph - N/A   Scattered Clouds
4:56 PM 32.0 °F - 21.2 °F 64% 30.13 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:16 PM 32.0 °F 27.5 °F 23.0 °F 69% 30.14 in 10.0 mi NE 4.6 mph - N/A   Mostly Cloudy
5:36 PM 30.2 °F 24.3 °F 21.2 °F 69% 30.14 in 10.0 mi NE 5.8 mph - N/A   Mostly Cloudy
5:56 PM 30.2 °F - 21.2 °F 69% 30.15 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:16 PM 30.2 °F - 21.2 °F 69% 30.16 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:36 PM 32.0 °F - 21.2 °F 64% 30.16 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:56 PM 30.2 °F - 24.8 °F 80% 30.17 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:16 PM 30.2 °F - 23.0 °F 75% 30.18 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:36 PM 30.2 °F 26.7 °F 21.2 °F 69% 30.19 in 10.0 mi SW 3.5 mph - N/A   Mostly Cloudy
7:56 PM 30.2 °F 24.3 °F 23.0 °F 75% 30.20 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
8:16 PM 30.2 °F 26.7 °F 21.2 °F 69% 30.20 in 10.0 mi SSW 3.5 mph - N/A   Mostly Cloudy
8:36 PM 30.2 °F 25.4 °F 21.2 °F 69% 30.21 in 10.0 mi SSW 4.6 mph - N/A   Mostly Cloudy
8:56 PM 30.2 °F 24.3 °F 21.2 °F 69% 30.22 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
9:16 PM 30.2 °F 25.4 °F 21.2 °F 69% 30.23 in 10.0 mi SW 4.6 mph - N/A   Mostly Cloudy
9:36 PM 30.2 °F 24.3 °F 21.2 °F 69% 30.24 in 10.0 mi SW 5.8 mph - N/A   Mostly Cloudy
9:56 PM 30.2 °F 24.3 °F 21.2 °F 69% 30.24 in 10.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
10:16 PM 30.2 °F 23.4 °F 21.2 °F 69% 30.25 in 10.0 mi WSW 6.9 mph - N/A   Overcast
10:36 PM 30.2 °F 23.4 °F 21.2 °F 69% 30.26 in 10.0 mi SW 6.9 mph - N/A   Overcast
10:56 PM 28.4 °F 22.2 °F 21.2 °F 74% 30.26 in 10.0 mi SW 5.8 mph - N/A   Overcast
11:16 PM 28.4 °F 22.2 °F 21.2 °F 74% 30.26 in 10.0 mi SSW 5.8 mph - N/A   Overcast
11:36 PM 28.4 °F 21.2 °F 21.2 °F 74% 30.27 in 10.0 mi SW 6.9 mph - N/A   Overcast
11:56 PM 28.4 °F 21.2 °F 21.2 °F 74% 30.27 in 10.0 mi SW 6.9 mph - N/A   Overcast