Weather History for Riverton, WY

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Sunday, April 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 45 °F 46 °F  
Max Temperature 60 °F 59 °F 74 °F (2009)
Min Temperature 30 °F 33 °F 17 °F (2008)
Degree Days  
Heating Degree Days 20 19  
Month to date heating degree days 575 464  
Since 1 July heating degree days 7017 7236  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 22 °F    
Average Humidity 46    
Maximum Humidity 75    
Minimum Humidity 17    
Precipitation  
Precipitation T in 0.05 in 0.33 in (1999)
Month to date precipitation 0.89 0.82  
Year to date precipitation 1.65 1.88  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 10.6  
Since 1 July snowfall 30.5  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.89 in    
Wind  
Wind Speed 11 mph (West)    
Max Wind Speed 28 mph    
Max Gust Speed 35 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Apr. 21, 2013 Rise Set
Actual Time 6:21 AM MDT 8:03 PM MDT
Civil Twilight 5:51 AM MDT 8:34 PM MDT
Nautical Twilight 5:15 AM MDT 9:10 PM MDT
Astronomical Twilight 4:36 AM MDT 9:50 PM MDT
Moon 3:46 PM MDT 3:52 AM MDT
Length of Visible Light 14h 42m
Length of Day
13h 42m
Waxing Gibbous, 80% of the Moon is Illuminated
Apr 21
Waxing Gibbous
Apr 25
Full
May 2
Last Quarter
May 9
New
May 17
First Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 43.0 °F 35.1 °F 25.0 °F 49% 29.91 in 10.0 mi WNW 17.3 mph - N/A   Scattered Clouds
1:53 AM 44.1 °F 36.5 °F 25.0 °F 47% 29.90 in 10.0 mi WNW 17.3 mph - N/A   Overcast
2:53 AM 39.9 °F 32.5 °F 25.0 °F 55% 29.90 in 10.0 mi WNW 12.7 mph - N/A   Clear
3:53 AM 39.9 °F 32.1 °F 25.0 °F 55% 29.92 in 10.0 mi WNW 13.8 mph - N/A   Clear
4:53 AM 35.1 °F 27.4 °F 24.1 °F 64% 29.95 in 10.0 mi NW 10.4 mph - N/A   Clear
5:53 AM 33.1 °F 26.9 °F 27.0 °F 78% 29.97 in 10.0 mi NNW 6.9 mph - N/A   Clear
6:53 AM 36.0 °F - 28.0 °F 73% 29.97 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 41.0 °F 38.0 °F 28.9 °F 62% 29.98 in 10.0 mi SW 4.6 mph - N/A   Clear
8:53 AM 44.1 °F 40.8 °F 25.0 °F 47% 29.98 in 10.0 mi WSW 5.8 mph - N/A   Clear
9:53 AM 46.9 °F - 23.0 °F 39% 29.97 in 10.0 mi West 3.5 mph - N/A   Clear
10:53 AM 50.0 °F - 21.0 °F 32% 29.94 in 10.0 mi Variable 4.6 mph - N/A   Clear
11:53 AM 52.0 °F - 19.9 °F 28% 29.92 in 10.0 mi SE 4.6 mph - N/A   Clear
12:53 PM 55.0 °F - 18.0 °F 23% 29.89 in 10.0 mi South 9.2 mph - N/A   Clear
1:53 PM 59.0 °F - 16.0 °F 19% 29.84 in 10.0 mi SW 9.2 mph 17.3 mph N/A   Mostly Cloudy
2:53 PM 55.0 °F - 21.9 °F 28% 29.86 in 10.0 mi SSW 8.1 mph - N/A   Partly Cloudy
3:53 PM 55.0 °F - 21.9 °F 28% 29.84 in 10.0 mi North 15.0 mph 25.3 mph 0.00 in   Overcast
4:53 PM 57.9 °F - 14.0 °F 18% 29.82 in 10.0 mi West 12.7 mph 21.9 mph N/A   Overcast
5:53 PM 57.9 °F - 12.9 °F 17% 29.82 in 10.0 mi WSW 15.0 mph 23.0 mph N/A   Scattered Clouds
6:53 PM 54.0 °F - 17.1 °F 23% 29.83 in 10.0 mi West 20.7 mph 27.6 mph N/A   Clear
7:53 PM 52.0 °F - 19.0 °F 27% 29.81 in 10.0 mi West 13.8 mph - N/A   Scattered Clouds
8:53 PM 48.9 °F - 21.9 °F 35% 29.83 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
9:53 PM 45.0 °F 39.3 °F 25.0 °F 46% 29.84 in 10.0 mi NNE 11.5 mph - N/A   Overcast
10:53 PM 37.0 °F 25.9 °F 28.9 °F 73% 29.87 in 10.0 mi NE 23.0 mph 33.4 mph N/A   Mostly Cloudy
11:53 PM 32.0 °F 20.1 °F 23.0 °F 69% 29.90 in 10.0 mi NNE 19.6 mph 31.1 mph N/A   Mostly Cloudy