Weather History for Johnstown, PA

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Monday, December 31, 2012

  Actual Average Record
Temperature  
Mean Temperature 24 °F 26 °F  
Max Temperature 30 °F 33 °F 64 °F (1923)
Min Temperature 18 °F 19 °F -5 °F (1963)
Degree Days  
Heating Degree Days 41 39  
Month to date heating degree days 1127  
Since 1 July heating degree days 2584  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 382  
Moisture  
Dew Point 21 °F    
Average Humidity 81    
Maximum Humidity 93    
Minimum Humidity 52    
Precipitation  
Precipitation 0.07 in 0.08 in 0.62 in (1975)
Month to date precipitation 2.57  
Year to date precipitation 33.62  
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 17 mph (WSW)    
Max Wind Speed 31 mph    
Max Gust Speed 45 mph    
Visibility 6 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Dec. 31, 2012 Rise Set
Actual Time 7:38 AM EST 4:59 PM EST
Civil Twilight 7:07 AM EST 5:29 PM EST
Nautical Twilight 6:33 AM EST 6:04 PM EST
Astronomical Twilight 6:00 AM EST 6:37 PM EST
Moon 8:28 PM EST (12/31) 9:18 AM EST (12/31)
Length of Visible Light 10h 22m
Length of Day
9h 21m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 31
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
1:54 AM 19.9 °F 5.7 °F 16.0 °F 85% 30.28 in 10.0 mi West 16.1 mph - N/A   Overcast
2:54 AM 19.9 °F 6.7 °F 16.0 °F 85% 30.27 in 10.0 mi WSW 13.8 mph - N/A   Overcast
3:22 AM 19.4 °F 7.9 °F 15.8 °F 86% 30.15 in 10.0 mi WSW 10.4 mph - N/A   Overcast
3:54 AM 19.0 °F 4.5 °F 15.1 °F 85% 30.24 in 10.0 mi WSW 16.1 mph - N/A   Scattered Clouds
4:54 AM 18.0 °F 6.1 °F 14.0 °F 84% 30.23 in 10.0 mi WSW 10.4 mph - N/A   Clear
5:54 AM 19.9 °F 7.9 °F 14.0 °F 78% 30.22 in 10.0 mi SW 11.5 mph - N/A   Partly Cloudy
6:54 AM 19.9 °F 8.6 °F 15.1 °F 81% 30.21 in 10.0 mi WSW 10.4 mph - N/A   Clear
7:54 AM 21.9 °F 8.2 °F 17.1 °F 82% 30.20 in 10.0 mi SW 16.1 mph 24.2 mph N/A   Clear
8:54 AM 23.0 °F 10.1 °F 17.1 °F 78% 30.19 in 10.0 mi SW 15.0 mph 21.9 mph N/A   Clear
9:54 AM 25.0 °F 11.3 °F 17.1 °F 72% 30.17 in 10.0 mi SW 18.4 mph 27.6 mph N/A   Clear
10:54 AM 28.0 °F 16.1 °F 17.1 °F 63% 30.14 in 10.0 mi WSW 16.1 mph 28.8 mph N/A   Clear
11:54 AM 28.9 °F 16.1 °F 16.0 °F 58% 30.11 in 10.0 mi West 19.6 mph 27.6 mph N/A   Clear
12:54 PM 30.0 °F 15.2 °F 15.1 °F 54% 30.07 in 5.0 mi West 28.8 mph 38.0 mph 0.00 in   Clear
1:54 PM 30.9 °F 18.7 °F 15.1 °F 52% 30.04 in 9.0 mi West 19.6 mph 32.2 mph 0.00 in   Clear
2:54 PM 30.0 °F 17.9 °F 15.1 °F 54% 30.03 in 5.0 mi WSW 18.4 mph 26.5 mph 0.02 in   Haze
3:13 PM 30.2 °F 18.5 °F 15.8 °F 55% 29.94 in 8.0 mi WSW 17.3 mph 29.9 mph 0.01 in   Partly Cloudy
3:54 PM 30.0 °F 16.9 °F 21.0 °F 69% 30.02 in 10.0 mi WSW 21.9 mph 29.9 mph 0.01 in   Mostly Cloudy
4:31 PM 28.4 °F 12.5 °F 24.8 °F 86% 29.94 in 1.8 mi West 31.1 mph 44.9 mph 0.00 in Snow Light Snow
4:36 PM 28.4 °F 13.8 °F 24.8 °F 86% 29.94 in 0.8 mi West 25.3 mph 44.9 mph 0.00 in Snow Light Snow
4:47 PM 28.4 °F 15.1 °F 24.8 °F 86% 29.92 in 1.0 mi West 20.7 mph 31.1 mph 0.00 in Snow Light Snow
4:54 PM 28.0 °F 14.3 °F 25.0 °F 88% 30.02 in 1.2 mi West 21.9 mph 33.4 mph 0.00 in Snow Light Snow
5:11 PM 28.4 °F 15.1 °F 24.8 °F 86% 29.93 in 2.0 mi West 20.7 mph 31.1 mph 0.00 in Snow Light Snow
5:41 PM 28.4 °F 15.1 °F 24.8 °F 86% 29.93 in 3.0 mi West 20.7 mph 27.6 mph 0.03 in Snow Light Snow
5:54 PM 28.0 °F 16.1 °F 25.0 °F 88% 30.03 in 4.0 mi West 16.1 mph 24.2 mph 0.04 in Snow Light Snow
6:02 PM 28.4 °F 16.2 °F 24.8 °F 86% 29.94 in 1.8 mi West 17.3 mph 26.5 mph 0.00 in Snow Light Snow
6:10 PM 28.4 °F 16.6 °F 24.8 °F 86% 29.94 in 2.0 mi West 16.1 mph 25.3 mph 0.00 in Snow Light Snow
6:37 PM 28.4 °F 15.4 °F 26.6 °F 93% 29.94 in 4.0 mi WSW 19.6 mph 26.5 mph 0.00 in   Overcast
6:50 PM 28.4 °F 14.4 °F 26.6 °F 93% 29.94 in 4.0 mi West 23.0 mph 28.8 mph 0.00 in Snow Light Snow
6:54 PM 28.9 °F 15.4 °F 26.1 °F 89% 30.04 in 3.0 mi West 21.9 mph 28.8 mph 0.00 in Snow Light Snow
7:00 PM 28.4 °F 15.1 °F 26.6 °F 93% 29.94 in 1.8 mi West 20.7 mph 29.9 mph 0.00 in Snow Light Snow
7:21 PM 28.4 °F 15.4 °F 26.6 °F 93% 29.94 in 2.0 mi WSW 19.6 mph 29.9 mph 0.00 in Snow Light Snow
7:31 PM 28.4 °F 15.4 °F 26.6 °F 93% 29.94 in 3.0 mi West 19.6 mph 27.6 mph 0.00 in Snow Light Snow
7:39 PM 28.4 °F 15.4 °F 24.8 °F 86% 29.93 in 3.0 mi West 19.6 mph 29.9 mph 0.00 in Snow Light Snow
7:54 PM 28.0 °F 14.3 °F 25.0 °F 88% 30.01 in 3.0 mi West 21.9 mph 28.8 mph 0.00 in Snow Light Snow
8:03 PM 28.4 °F 16.2 °F 24.8 °F 86% 29.93 in 2.5 mi West 17.3 mph 28.8 mph 0.00 in Snow Light Snow
8:10 PM 28.4 °F 15.4 °F 24.8 °F 86% 29.93 in 3.0 mi West 19.6 mph 25.3 mph 0.00 in Snow Light Snow
8:12 PM 28.4 °F 16.2 °F 24.8 °F 86% 29.92 in 2.5 mi WSW 17.3 mph 25.3 mph 0.00 in Snow Light Snow
8:20 PM 28.4 °F 16.6 °F 24.8 °F 86% 29.93 in 3.0 mi West 16.1 mph 25.3 mph 0.00 in Snow Light Snow
9:42 PM 28.4 °F 16.2 °F 24.8 °F 86% 29.92 in 10.0 mi WSW 17.3 mph 23.0 mph 0.00 in   Overcast
10:54 PM 27.0 °F 15.6 °F 25.0 °F 92% 30.01 in 8.0 mi WSW 13.8 mph - N/A   Overcast
11:54 PM 27.0 °F 17.3 °F 25.0 °F 92% 30.01 in 7.0 mi WSW 10.4 mph - N/A   Overcast