Weather History for Casper, WY

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Monday, December 31, 2012

  Actual Average Record
Temperature  
Mean Temperature 5 °F 24 °F  
Max Temperature 20 °F 35 °F 54 °F (1980)
Min Temperature -11 °F 14 °F -34 °F (1978)
Degree Days  
Heating Degree Days 60 41  
Month to date heating degree days 1189 1277  
Since 1 July heating degree days 2723 3129  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 697 422  
Moisture  
Dew Point -2 °F    
Average Humidity 70    
Maximum Humidity 83    
Minimum Humidity 56    
Precipitation  
Precipitation 0.00 in 0.01 in 0.38 in (2011)
Month to date precipitation 0.39 0.49  
Year to date precipitation 7.88 12.52  
Snow  
Snow 0.00 in 0.30 in - ()
Month to date snowfall 6.0 11.0  
Since 1 July snowfall 18.7 30.5  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.24 in    
Wind  
Wind Speed 8 mph (WSW)    
Max Wind Speed 14 mph    
Max Gust Speed 17 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 31, 2012 Rise Set
Actual Time 7:36 AM MST 4:41 PM MST
Civil Twilight 7:04 AM MST 5:13 PM MST
Nautical Twilight 6:29 AM MST 5:49 PM MST
Astronomical Twilight 5:54 AM MST 6:24 PM MST
Moon 8:20 PM MST (12/31) 9:14 AM MST (12/31)
Length of Visible Light 10h 09m
Length of Day
9h 04m
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 (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM -9.0 °F -18.2 °F -15.0 °F 75% 30.22 in 10.0 mi West 3.5 mph - N/A   Clear
1:53 AM -7.1 °F -21.4 °F -13.0 °F 75% 30.21 in 10.0 mi NNW 6.9 mph - N/A   Clear
2:53 AM -8.0 °F -16.9 °F -13.0 °F 79% 30.22 in 10.0 mi WSW 3.5 mph - N/A   Clear
3:53 AM -6.0 °F - -11.9 °F 75% 30.23 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM -9.0 °F - -14.1 °F 79% 30.25 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM -9.0 °F - -15.0 °F 75% 30.27 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM -6.0 °F -22.6 °F -11.0 °F 79% 30.27 in 10.0 mi West 9.2 mph - N/A   Clear
7:53 AM -7.1 °F -22.8 °F -11.9 °F 79% 30.29 in 10.0 mi West 8.1 mph - N/A   Clear
8:53 AM 3.0 °F -10.5 °F -2.9 °F 76% 30.29 in 10.0 mi West 8.1 mph - N/A   Clear
9:53 AM 8.1 °F -3.2 °F 1.9 °F 76% 30.27 in 10.0 mi WSW 6.9 mph - N/A   Clear
10:53 AM 12.0 °F -0.4 °F 3.9 °F 70% 30.27 in 10.0 mi WSW 9.2 mph - N/A   Clear
11:53 AM 15.1 °F 1.8 °F 5.0 °F 64% 30.22 in 10.0 mi WSW 11.5 mph - N/A   Clear
12:53 PM 18.0 °F 6.1 °F 7.0 °F 62% 30.20 in 10.0 mi SW 10.4 mph - N/A   Clear
1:53 PM 19.9 °F 7.9 °F 8.1 °F 60% 30.17 in 10.0 mi SW 11.5 mph - N/A   Clear
2:53 PM 19.9 °F 9.3 °F 8.1 °F 60% 30.19 in 10.0 mi SW 9.2 mph - N/A   Clear
3:53 PM 19.0 °F 10.0 °F 7.0 °F 59% 30.19 in 10.0 mi SW 6.9 mph - N/A   Clear
4:53 PM 12.0 °F 1.5 °F 3.9 °F 70% 30.24 in 10.0 mi WSW 6.9 mph - N/A   Clear
5:53 PM 8.1 °F -6.2 °F 1.0 °F 73% 30.27 in 10.0 mi West 10.4 mph - N/A   Clear
6:53 PM 9.0 °F -3.2 °F 1.9 °F 73% 30.25 in 10.0 mi WSW 8.1 mph - N/A   Clear
7:53 PM 10.0 °F -2.9 °F 3.0 °F 73% 30.24 in 10.0 mi WSW 9.2 mph - N/A   Clear
8:53 PM 9.0 °F -5.1 °F 1.9 °F 73% 30.23 in 10.0 mi WSW 10.4 mph - N/A   Clear
9:53 PM 9.0 °F -3.2 °F 1.9 °F 73% 30.25 in 10.0 mi WNW 8.1 mph - N/A   Clear
10:53 PM 10.9 °F -5.4 °F 1.9 °F 67% 30.23 in 10.0 mi WSW 15.0 mph - N/A   Overcast
11:53 PM 9.0 °F - 1.9 °F 73% 30.24 in 10.0 mi North - - N/A   Overcast