History for Riverton, WY

Wednesday, December 19, 2012 — View Current Conditions
Wednesday, December 19, 2012
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Daily Weekly Monthly Custom
  Actual Average Record
Temperature
Mean Temperature 17 °F 19 °F  
Max Temperature 28 °F 31 °F 44 °F (2004)
Min Temperature 6 °F 7 °F -13 °F (1998)
Degree Days
Heating Degree Days 48 46  
Month to date heating degree days 691 848  
Since 1 July heating degree days 2272 2764  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 765 494  
Moisture
Dew Point -9 °F    
Average Humidity 38    
Maximum Humidity 55    
Minimum Humidity 21    
Precipitation
Precipitation 0.00 in 0.01 in 0.02 in (1997)
Month to date precipitation 0.04 0.17  
Year to date precipitation 2.91 9.28  
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 30.10 in    
Wind
Wind Speed 15 mph (NW)    
Max Wind Speed 30 mph    
Max Gust Speed 37 mph    
Visibility 10 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
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Astronomy
May. 24, 2013 Rise Set
Actual Time 7:41 AM MST 4:41 PM MST
Civil Twilight 7:08 AM MST 5:13 PM MST
Nautical Twilight 6:32 AM MST 5:49 PM MST
Astronomical Twilight 5:58 AM MST 6:24 PM MST
Moon 11:41 AM MST (12/19) No Moon Set
Length Of Visible Light 10h 04m
Length of Day
8h 59m
Waxing Crescent, 45% of the Moon is Illuminated
Dec 19
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
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Hourly Observations
Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 16.0 °F 1.7 °F -7.1 °F 36% 29.87 in 10.0 mi NW 13.8 mph - N/A   Clear
1:53 AM 15.1 °F 4.2 °F -6.0 °F 39% 29.89 in 10.0 mi NNW 8.1 mph - N/A   Clear
2:53 AM 16.0 °F 2.9 °F -9.0 °F 32% 29.91 in 10.0 mi NNW 11.5 mph - N/A   Clear
3:53 AM 14.0 °F 0.5 °F -7.1 °F 39% 29.92 in 10.0 mi NW 11.5 mph - N/A   Clear
4:53 AM 10.0 °F -4.5 °F -8.0 °F 44% 29.97 in 10.0 mi NW 11.5 mph - N/A   Clear
5:53 AM 8.1 °F -8.4 °F -8.0 °F 48% 30.01 in 10.0 mi NW 13.8 mph - N/A   Clear
6:53 AM 8.1 °F -7.7 °F -7.1 °F 50% 30.06 in 10.0 mi NW 12.7 mph - N/A   Clear
7:53 AM 7.0 °F -9.1 °F -8.0 °F 51% 30.08 in 10.0 mi NW 12.7 mph - N/A   Clear
8:53 AM 12.0 °F -3.4 °F -8.0 °F 41% 30.09 in 10.0 mi NW 13.8 mph - N/A   Clear
9:53 AM 17.1 °F 3.0 °F -8.0 °F 33% 30.12 in 10.0 mi WNW 13.8 mph - N/A   Clear
10:53 AM 19.9 °F 9.3 °F -9.9 °F 26% 30.12 in 10.0 mi WNW 9.2 mph - N/A   Clear
11:53 AM 23.0 °F 15.8 °F -11.9 °F 21% 30.11 in 10.0 mi NNW 5.8 mph - N/A   Clear
12:53 PM 24.1 °F 13.7 °F -11.0 °F 21% 30.11 in 10.0 mi ENE 10.4 mph - N/A   Clear
1:53 PM 25.0 °F 19.3 °F -9.9 °F 21% 30.11 in 10.0 mi ENE 4.6 mph - N/A   Clear
2:53 PM 27.0 °F 11.9 °F -15.0 °F 15% 30.10 in 10.0 mi NW 25.3 mph 34.5 mph 0.00 in Snow Light Snow
3:53 PM 24.1 °F 10.6 °F -9.0 °F 23% 30.14 in 10.0 mi NW 17.3 mph - 0.00 in   Clear
4:53 PM 19.9 °F 3.9 °F -9.0 °F 27% 30.19 in 10.0 mi NW 20.7 mph 26.5 mph N/A   Clear
5:53 PM 19.0 °F 2.0 °F -8.0 °F 30% 30.22 in 10.0 mi WNW 23.0 mph 33.4 mph N/A   Clear
6:53 PM 17.6 °F 1.3 °F -9.4 °F 30% 30.03 in 10.0 mi West 19.6 mph - N/A   Clear
7:53 PM 17.1 °F 1.0 °F -9.0 °F 31% 30.27 in 10.0 mi West 18.4 mph - N/A   Clear
8:53 PM 18.0 °F -1.4 °F -8.0 °F 31% 30.25 in 10.0 mi West 29.9 mph 36.8 mph N/A   Clear
9:53 PM 12.9 °F -3.4 °F -11.0 °F 34% 30.28 in 10.0 mi WSW 16.1 mph - N/A   Clear
10:53 PM 18.0 °F -0.2 °F -9.9 °F 29% 30.25 in 10.0 mi West 25.3 mph 31.1 mph N/A   Clear
11:53 PM 12.9 °F -0.9 °F -11.0 °F 34% 30.28 in 10.0 mi West 11.5 mph - N/A   Clear
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