Weather History for Lancaster, PA

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Thursday, January 20, 2011

  Actual Average Record
Temperature  
Mean Temperature 31 °F -  
Max Temperature 35 °F 36 °F 61 °F (2006)
Min Temperature 27 °F 21 °F 0 °F (1984)
Degree Days  
Heating Degree Days 34    
Moisture  
Dew Point 21 °F    
Average Humidity 67    
Maximum Humidity 75    
Minimum Humidity 57    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.97 in    
Wind  
Wind Speed 10 mph (North)    
Max Wind Speed 14 mph    
Max Gust Speed -    
Visibility 9 miles    
Events Snow    
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

Jan. 20, 2011 Rise Set
Actual Time 7:23 AM EST 5:09 PM EST
Civil Twilight 6:53 AM EST 5:39 PM EST
Nautical Twilight 6:20 AM EST 6:12 PM EST
Astronomical Twilight 5:48 AM EST 6:44 PM EST
Moon 6:29 PM EST (1/20) 7:40 AM EST (1/20)
Length of Visible Light 10h 45m
Length of Day
9h 46m
Full, 99% of the Moon is Illuminated
Jan 20
Full
Jan 26
Last Quarter
Feb 2
New
Feb 11
First Quarter
Feb 18
Full

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 35.1 °F 25.9 °F 25.0 °F 67% 30.01 in 10.0 mi NW 13.8 mph - N/A   Overcast
1:53 AM 33.1 °F 23.4 °F 24.1 °F 70% 30.04 in 10.0 mi WNW 13.8 mph - N/A   Clear
2:53 AM 33.1 °F 23.4 °F 23.0 °F 66% 30.06 in 10.0 mi WNW 13.8 mph - N/A   Partly Cloudy
3:53 AM 33.1 °F 23.4 °F 21.9 °F 64% 30.06 in 10.0 mi NW 13.8 mph - N/A   Overcast
4:53 AM 32.0 °F 22.1 °F 19.0 °F 59% 30.07 in 10.0 mi NW 13.8 mph - N/A   Overcast
5:53 AM 28.9 °F 21.1 °F 17.1 °F 61% 30.07 in 10.0 mi NNW 8.1 mph - N/A   Partly Cloudy
6:53 AM 27.0 °F 18.0 °F 17.1 °F 66% 30.08 in 10.0 mi NW 9.2 mph - N/A   Partly Cloudy
7:53 AM 27.0 °F 20.5 °F 17.1 °F 66% 30.11 in 10.0 mi WNW 5.8 mph - N/A   Clear
8:53 AM 28.9 °F 21.1 °F 17.1 °F 61% 30.13 in 10.0 mi WNW 8.1 mph - N/A   Clear
9:53 AM 30.0 °F 22.4 °F 17.1 °F 59% 30.13 in 10.0 mi NW 8.1 mph - N/A   Clear
10:53 AM 30.9 °F 23.5 °F 17.1 °F 57% 30.11 in 10.0 mi NNW 8.1 mph - N/A   Clear
11:53 AM 30.9 °F 24.3 °F 17.1 °F 57% 30.07 in 10.0 mi North 6.9 mph - N/A   Partly Cloudy
12:53 PM 32.0 °F 23.6 °F 19.0 °F 59% 30.06 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
1:53 PM 30.9 °F 24.3 °F 19.0 °F 61% 30.04 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
2:53 PM 32.0 °F 28.7 °F 19.9 °F 61% 30.00 in 10.0 mi NNW 3.5 mph - N/A   Mostly Cloudy
3:53 PM 30.0 °F 26.5 °F 21.0 °F 69% 29.97 in 10.0 mi East 3.5 mph - N/A   Clear
4:53 PM 30.0 °F 26.5 °F 21.0 °F 69% 29.96 in 10.0 mi ESE 3.5 mph - N/A   Mostly Cloudy
5:53 PM 30.0 °F 26.5 °F 21.9 °F 72% 29.93 in 10.0 mi East 3.5 mph - N/A   Overcast
6:53 PM 30.0 °F 25.2 °F 21.9 °F 72% 29.90 in 6.0 mi East 4.6 mph - 0.00 in   Haze
7:53 PM 30.0 °F 25.2 °F 23.0 °F 75% 29.86 in 9.0 mi East 4.6 mph - 0.00 in   Overcast
8:44 PM 30.2 °F 25.4 °F 23.0 °F 75% 29.82 in 7.0 mi East 4.6 mph - 0.00 in Snow Light Snow
8:53 PM 30.0 °F 24.1 °F 23.0 °F 75% 29.83 in 8.0 mi East 5.8 mph - 0.00 in   Overcast
9:53 PM 30.9 °F 24.3 °F 23.0 °F 72% 29.79 in 10.0 mi ESE 6.9 mph - N/A   Overcast
10:53 PM 32.0 °F 24.8 °F 24.1 °F 73% 29.73 in 10.0 mi SE 8.1 mph - N/A   Overcast
11:48 PM 32.0 °F 24.8 °F 24.8 °F 75% 29.67 in 6.0 mi SE 8.1 mph - 0.00 in Snow Light Snow
11:53 PM 32.0 °F 23.6 °F 25.0 °F 75% 29.68 in 4.0 mi SE 10.4 mph - 0.00 in Snow Light Snow