Weather History for Pottstown, PA

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Sunday, December 9, 2012

  Actual Average (KRDG) Record (KRDG)
Temperature  
Mean Temperature 44 °F 36 °F  
Max Temperature 48 °F 44 °F 71 °F (1966)
Min Temperature 39 °F 28 °F 0 °F (1989)
Degree Days  
Heating Degree Days 22 29  
Month to date heating degree days 252  
Since 1 July heating degree days 1319  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 896  
Moisture  
Dew Point 42 °F    
Average Humidity 94    
Maximum Humidity 100    
Minimum Humidity 80    
Precipitation  
Precipitation 0.18 in 0.11 in 1.16 in (2009)
Month to date precipitation 1.05  
Year to date precipitation 41.03  
Sea Level Pressure  
Sea Level Pressure 30.12 in    
Wind  
Wind Speed 3 mph (NE)    
Max Wind Speed 8 mph    
Max Gust Speed -    
Visibility 4 miles    
Events Fog , Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 09, 2012 Rise Set
Actual Time 7:13 AM EST 4:36 PM EST
Civil Twilight 6:42 AM EST 5:06 PM EST
Nautical Twilight 6:08 AM EST 5:40 PM EST
Astronomical Twilight 5:35 AM EST 6:13 PM EST
Moon 2:43 AM EST (12/9) 1:41 PM EST (12/9)
Length of Visible Light 10h 23m
Length of Day
9h 22m
Waning Crescent, 19% of the Moon is Illuminated
Dec 9
Waning Crescent
Dec 13
New
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:22 AM 48.2 °F - 46.4 °F 93% 30.04 in 1.8 mi SW 3.5 mph - N/A   Overcast
12:31 AM 48.2 °F - 46.4 °F 93% 30.04 in 2.0 mi Calm Calm - N/A   Overcast
12:51 AM 46.4 °F 45.2 °F 46.4 °F 100% 30.03 in 1.8 mi NW 3.5 mph - N/A   Overcast
12:54 AM 46.9 °F - 46.9 °F 100% 30.03 in 1.5 mi WNW 3.5 mph - N/A   Overcast
1:04 AM 46.4 °F - 46.4 °F 100% 30.04 in 1.2 mi Calm Calm - N/A   Overcast
1:54 AM 46.9 °F - 46.9 °F 100% 30.06 in 1.2 mi Calm Calm - N/A   Overcast
2:38 AM 46.4 °F - 46.4 °F 100% 30.07 in 1.2 mi Calm Calm - N/A   Overcast
2:54 AM 46.9 °F - 46.0 °F 97% 30.07 in 1.0 mi Calm Calm - N/A   Mist
3:03 AM 46.4 °F 44.3 °F 44.6 °F 93% 30.08 in 0.8 mi NNW 4.6 mph - N/A   Mist
3:16 AM 44.6 °F 42.2 °F 44.6 °F 100% 30.07 in 0.2 mi North 4.6 mph - N/A Fog Fog
3:25 AM 44.6 °F 43.1 °F 44.6 °F 100% 30.08 in 0.2 mi NNW 3.5 mph - N/A Fog Fog
3:52 AM 44.6 °F - 44.6 °F 100% 30.08 in 0.5 mi Calm Calm - N/A Fog Fog
3:54 AM 44.1 °F - 44.1 °F 100% 30.08 in 0.5 mi Calm Calm - N/A Fog Fog
4:03 AM 44.6 °F - 42.8 °F 93% 30.09 in 0.2 mi Calm Calm - N/A Fog Fog
4:15 AM 42.8 °F - 41.0 °F 93% 30.08 in 0.5 mi Calm Calm - N/A Fog Fog
4:27 AM 42.8 °F - 42.8 °F 100% 30.09 in 0.8 mi Calm Calm - N/A   Partly Cloudy
4:37 AM 42.8 °F - 41.0 °F 93% 30.10 in 0.5 mi Calm Calm - N/A Fog Fog
4:45 AM 41.0 °F - 41.0 °F 100% 30.10 in 0.2 mi Calm Calm - N/A Fog Fog
4:54 AM 42.1 °F - 41.0 °F 96% 30.11 in 0.2 mi Calm Calm - N/A Fog Fog
5:05 AM 42.8 °F - 42.8 °F 100% 30.11 in 0.5 mi Calm Calm - N/A Fog Fog
5:24 AM 41.0 °F - 39.2 °F 93% 30.13 in 0.5 mi Calm Calm - N/A Fog Fog
5:33 AM 41.0 °F - 41.0 °F 100% 30.13 in 0.8 mi Calm Calm - N/A   Clear
5:38 AM 42.8 °F - 41.0 °F 93% 30.14 in - Calm Calm - N/A   Clear
5:45 AM 42.8 °F 41.1 °F 42.8 °F 100% 30.14 in 2.0 mi North 3.5 mph - N/A   Clear
5:54 AM 45.0 °F 43.5 °F 44.1 °F 97% 30.14 in 8.0 mi North 3.5 mph - N/A   Clear
6:54 AM 46.0 °F 41.9 °F 43.0 °F 89% 30.17 in 10.0 mi NNE 8.1 mph - N/A   Overcast
7:54 AM 46.9 °F - 41.0 °F 80% 30.21 in 10.0 mi NNW 3.5 mph - 0.00 in   Overcast
8:54 AM 46.0 °F 44.8 °F 41.0 °F 83% 30.22 in 10.0 mi NE 3.5 mph - 0.00 in   Overcast
9:54 AM 45.0 °F 42.6 °F 41.0 °F 86% 30.25 in 10.0 mi North 4.6 mph - 0.02 in Rain Light Rain
10:54 AM 44.1 °F 40.1 °F 39.9 °F 85% 30.22 in 10.0 mi ENE 6.9 mph - 0.02 in Rain Light Rain
11:54 AM 44.1 °F 40.8 °F 39.9 °F 85% 30.21 in 10.0 mi NE 5.8 mph - 0.01 in Rain Light Rain
12:40 PM 44.6 °F 40.2 °F 41.0 °F 87% 30.19 in - NE 8.1 mph - 0.00 in Rain Light Rain
12:50 PM 44.6 °F 40.7 °F 41.0 °F 87% 30.18 in 10.0 mi NE 6.9 mph - 0.01 in Rain Light Rain
12:54 PM 44.1 °F 40.8 °F 41.0 °F 89% 30.18 in 10.0 mi NE 5.8 mph - 0.01 in Rain Light Rain
1:10 PM 44.6 °F 40.7 °F 42.8 °F 93% 30.18 in 10.0 mi NE 6.9 mph - 0.00 in Rain Light Rain
1:54 PM 44.1 °F 40.1 °F 41.0 °F 89% 30.18 in 10.0 mi ENE 6.9 mph - 0.00 in Rain Light Rain
2:28 PM 44.6 °F 41.4 °F 42.8 °F 93% 30.17 in 2.5 mi ENE 5.8 mph - 0.01 in Rain Light Rain
2:52 PM 42.8 °F 39.3 °F 41.0 °F 93% 30.18 in 4.0 mi ENE 5.8 mph - 0.02 in Rain Light Rain
2:54 PM 43.0 °F 39.5 °F 41.0 °F 93% 30.18 in 4.0 mi Variable 5.8 mph - 0.03 in Rain Light Rain
3:03 PM 42.8 °F 38.6 °F 41.0 °F 93% 30.18 in 3.0 mi East 6.9 mph - 0.00 in Rain Light Rain
3:39 PM 42.8 °F 39.3 °F 39.2 °F 87% 30.19 in 10.0 mi East 5.8 mph - 0.00 in Rain Light Rain
3:54 PM 42.1 °F 40.2 °F 39.0 °F 89% 30.19 in 10.0 mi Variable 3.5 mph - 0.00 in Rain Light Rain
4:24 PM 41.0 °F 37.1 °F 37.4 °F 87% 30.18 in 10.0 mi ENE 5.8 mph - 0.00 in   Overcast
4:54 PM 41.0 °F 38.0 °F 37.9 °F 89% 30.18 in 8.0 mi East 4.6 mph - 0.00 in   Overcast
5:41 PM 41.0 °F 38.0 °F 39.2 °F 93% 30.17 in 5.0 mi ENE 4.6 mph - N/A   Overcast
5:54 PM 41.0 °F 38.0 °F 39.0 °F 93% 30.17 in 4.0 mi ENE 4.6 mph - N/A   Overcast
6:08 PM 39.2 °F 35.9 °F 39.2 °F 100% 30.17 in 2.5 mi ENE 4.6 mph - N/A   Overcast
6:54 PM 39.9 °F 37.8 °F 39.9 °F 100% 30.15 in 2.5 mi ENE 3.5 mph - 0.01 in Rain Light Rain
7:20 PM 41.0 °F 39.0 °F 39.2 °F 93% 30.14 in 3.0 mi Variable 3.5 mph - 0.01 in Rain Light Rain
7:54 PM 41.0 °F 37.1 °F 39.9 °F 96% 30.12 in 7.0 mi ENE 5.8 mph - 0.02 in Rain Light Rain
8:51 PM 41.0 °F 38.0 °F 39.2 °F 93% 30.09 in 2.0 mi ENE 4.6 mph - 0.00 in Rain Light Rain
8:54 PM 41.0 °F - 39.9 °F 96% 30.09 in 2.0 mi Calm Calm - 0.00 in Rain Light Rain
9:01 PM 41.0 °F - 39.2 °F 93% 30.09 in 2.5 mi Calm Calm - 0.01 in   Overcast
9:28 PM 41.0 °F 37.1 °F 39.2 °F 93% 30.09 in 3.0 mi North 5.8 mph - 0.02 in Rain Light Rain
9:37 PM 41.0 °F 39.0 °F 39.2 °F 93% 30.09 in 3.0 mi North 3.5 mph - 0.03 in Rain Light Rain
9:54 PM 41.0 °F 39.0 °F 41.0 °F 100% 30.08 in 3.0 mi NNE 3.5 mph - 0.05 in Rain Rain
10:32 PM 41.0 °F 36.4 °F 41.0 °F 100% 30.05 in 4.0 mi NE 6.9 mph - 0.01 in Rain Light Rain
10:54 PM 41.0 °F - 39.9 °F 96% 30.04 in 7.0 mi Calm Calm - 0.01 in   Overcast
11:19 PM 41.0 °F - 41.0 °F 100% 30.02 in 7.0 mi Calm Calm - 0.00 in   Overcast
11:54 PM 42.1 °F - 41.0 °F 96% 30.00 in 6.0 mi Calm Calm - 0.00 in Rain Light Rain