Weather History for Riverton, WY

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Wednesday, December 12, 2012

  Actual Average Record
Temperature  
Mean Temperature 32 °F 20 °F  
Max Temperature 47 °F 32 °F 53 °F (2004)
Min Temperature 17 °F 8 °F -10 °F (2007)
Degree Days  
Heating Degree Days 33 45  
Month to date heating degree days 413 527  
Since 1 July heating degree days 1994 2443  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 765 494  
Moisture  
Dew Point 15 °F    
Average Humidity 54    
Maximum Humidity 80    
Minimum Humidity 28    
Precipitation  
Precipitation 0.00 in 0.01 in 0.30 in (1958)
Month to date precipitation 0.04 0.11  
Year to date precipitation 2.91 9.22  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.5  
Since 1 July snowfall 3.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.75 in    
Wind  
Wind Speed 10 mph (West)    
Max Wind Speed 26 mph    
Max Gust Speed 33 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 12, 2012 Rise Set
Actual Time 7:36 AM MST 4:39 PM MST
Civil Twilight 7:04 AM MST 5:11 PM MST
Nautical Twilight 6:28 AM MST 5:47 PM MST
Astronomical Twilight 5:53 AM MST 6:21 PM MST
Moon 6:43 AM MST (12/12) 4:19 PM MST (12/12)
Length of Visible Light 10h 07m
Length of Day
9h 02m
Waning Crescent, 0% of the Moon is Illuminated
Dec 12
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

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 30.9 °F 22.2 °F 17.1 °F 57% 29.69 in 10.0 mi SW 10.4 mph - N/A   Clear
1:53 AM 21.9 °F - 14.0 °F 72% 29.71 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM 27.0 °F 20.5 °F 16.0 °F 63% 29.69 in 10.0 mi East 5.8 mph - N/A   Clear
3:53 AM 19.0 °F - 12.0 °F 74% 29.71 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 28.9 °F 21.1 °F 17.1 °F 61% 29.67 in 10.0 mi SSW 8.1 mph - N/A   Clear
5:53 AM 18.0 °F 9.8 °F 10.9 °F 74% 29.71 in 10.0 mi NW 5.8 mph - N/A   Clear
6:53 AM 18.0 °F 6.9 °F 12.9 °F 81% 29.71 in 10.0 mi NNW 9.2 mph - N/A   Clear
7:53 AM 17.1 °F 6.6 °F 12.0 °F 81% 29.73 in 10.0 mi NNW 8.1 mph - N/A   Clear
8:53 AM 26.1 °F 20.5 °F 18.0 °F 71% 29.70 in 10.0 mi NNW 4.6 mph - N/A   Clear
9:53 AM 32.0 °F 25.6 °F 19.0 °F 59% 29.68 in 10.0 mi NW 6.9 mph - N/A   Clear
10:53 AM 36.0 °F 32.1 °F 21.0 °F 55% 29.68 in 10.0 mi South 4.6 mph - N/A   Clear
11:53 AM 39.9 °F 35.1 °F 18.0 °F 41% 29.66 in 10.0 mi West 6.9 mph - N/A   Clear
12:53 PM 46.9 °F - 18.0 °F 32% 29.62 in 10.0 mi SW 21.9 mph 29.9 mph N/A   Clear
1:53 PM 46.0 °F 38.3 °F 18.0 °F 33% 29.68 in 10.0 mi WSW 20.7 mph 28.8 mph N/A   Clear
2:53 PM 46.0 °F 37.8 °F 15.1 °F 29% 29.68 in 10.0 mi WSW 23.0 mph 26.5 mph N/A   Clear
3:53 PM 43.0 °F 36.4 °F 15.1 °F 32% 29.77 in 10.0 mi WSW 12.7 mph - N/A   Clear
4:53 PM 37.0 °F 29.3 °F 15.1 °F 41% 29.77 in 10.0 mi WSW 11.5 mph - N/A   Clear
5:53 PM 32.0 °F 24.2 °F 14.0 °F 48% 29.87 in 10.0 mi West 9.2 mph - N/A   Clear
6:53 PM 33.1 °F 23.0 °F 12.9 °F 43% 29.87 in 10.0 mi WNW 15.0 mph - N/A   Clear
7:53 PM 33.1 °F 22.2 °F 14.0 °F 46% 29.89 in 10.0 mi West 17.3 mph - N/A   Clear
8:53 PM 30.0 °F 19.5 °F 12.0 °F 47% 29.88 in 10.0 mi West 13.8 mph - N/A   Clear
9:53 PM 28.0 °F 18.1 °F 12.0 °F 51% 29.88 in 10.0 mi WNW 11.5 mph - N/A   Clear
10:53 PM 28.9 °F 23.9 °F 12.0 °F 49% 29.89 in 10.0 mi SSE 4.6 mph - N/A   Clear
11:53 PM 30.0 °F - 10.9 °F 45% 29.89 in 10.0 mi Calm Calm - N/A   Clear