Weather History for Ketchikan, AK

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Sunday, May 10, 2009

  Actual Average Record
Temperature  
Mean Temperature 46 °F -  
Max Temperature 55 °F 56 °F 74 °F (1968)
Min Temperature 37 °F 40 °F 30 °F (1998)
Degree Days  
Heating Degree Days 20    
Moisture  
Dew Point 38 °F    
Average Humidity 72    
Maximum Humidity 93    
Minimum Humidity 53    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 2 mph (NW)    
Max Wind Speed 9 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

May. 10, 2009 Rise Set
Actual Time 4:45 AM AKDT 8:41 PM AKDT
Civil Twilight 3:59 AM AKDT 9:28 PM AKDT
Nautical Twilight 2:51 AM AKDT 10:37 PM AKDT
Astronomical Twilight 1:15 AM AKDT 12:10 AM AKDT
Moon 11:27 PM AKDT (5/10) 4:49 AM AKDT (5/10)
Length of Visible Light 17h 29m
Length of Day
15h 55m
Full, 97% of the Moon is Illuminated
May 10
Full
May 16
Last Quarter
May 24
New
May 30
First Quarter
Jun 7
Full

Hourly Weather History & Observations

Time (AKDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 39.0 °F 36.0 °F 89% 30.21 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM 37.9 °F 35.1 °F 89% 30.20 in 10.0 mi Calm Calm - N/A   Scattered Clouds
2:53 AM 39.0 °F 37.0 °F 93% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
3:53 AM 39.0 °F 36.0 °F 89% 30.17 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:53 AM 41.0 °F 37.4 °F 87% 30.16 in 10.0 mi Calm Calm - N/A   Overcast
5:53 AM 41.0 °F 37.9 °F 89% 30.15 in 10.0 mi Calm Calm - N/A   Overcast
6:06 AM 41.0 °F 37.4 °F 87% 30.15 in 10.0 mi Calm Calm - N/A   Overcast
6:53 AM 42.1 °F 37.9 °F 85% 30.14 in 10.0 mi Calm Calm - N/A   Overcast
7:53 AM 45.0 °F 37.9 °F 76% 30.13 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:53 AM 46.9 °F 37.9 °F 71% 30.12 in 10.0 mi Calm Calm - N/A   Clear
9:00 AM 46.4 °F 37.4 °F 71% 30.12 in 10.0 mi Calm Calm - N/A   Overcast
9:53 AM 48.9 °F 37.9 °F 66% 30.10 in 10.0 mi NNW 5.8 mph - N/A   Partly Cloudy
10:53 AM 51.1 °F 39.9 °F 66% 30.09 in 10.0 mi NW 9.2 mph - N/A   Partly Cloudy
11:53 AM 52.0 °F 37.9 °F 59% 30.08 in 10.0 mi NW 4.6 mph - N/A   Partly Cloudy
12:53 PM 53.1 °F 37.9 °F 57% 30.06 in 10.0 mi NNW 8.1 mph - N/A   Partly Cloudy
1:53 PM 52.0 °F 37.9 °F 59% 30.05 in 10.0 mi Variable 4.6 mph - N/A   Partly Cloudy
2:53 PM 54.0 °F 37.0 °F 53% 30.03 in 10.0 mi NW 5.8 mph - N/A   Scattered Clouds
3:53 PM 52.0 °F 39.0 °F 61% 30.01 in 10.0 mi NW 8.1 mph - N/A   Overcast
4:53 PM 53.1 °F 39.0 °F 59% 30.00 in 10.0 mi NW 4.6 mph - N/A   Overcast
5:53 PM 53.1 °F 39.0 °F 59% 29.97 in 10.0 mi NW 5.8 mph - N/A   Partly Cloudy
6:53 PM 51.1 °F 39.9 °F 66% 29.96 in 10.0 mi WNW 4.6 mph - N/A   Overcast
7:53 PM 51.1 °F 39.0 °F 63% 29.95 in 10.0 mi WNW 3.5 mph - N/A   Overcast
8:53 PM 48.2 °F 39.2 °F 71% 29.94 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:53 PM 48.9 °F 37.9 °F 66% 29.93 in 10.0 mi WNW 3.5 mph - N/A   Overcast
10:53 PM 48.0 °F 39.0 °F 71% 29.91 in 10.0 mi WNW 4.6 mph - N/A   Overcast
11:53 PM 46.9 °F 37.9 °F 71% 29.89 in 10.0 mi NW 3.5 mph - N/A   Overcast