Riverton, WY

2:19 AM MST on February 18, 2018 (GMT -0700)
Riverton Regional

Weather History for KRIW - December, 2011

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Friday, December 23, 2011

  Actual Average Record
Temperature  
Mean Temperature 4 °F 19 °F  
Max Temperature 12 °F 31 °F 44 °F (2005)
Min Temperature -5 °F 7 °F -19 °F (1998)
Degree Days  
Heating Degree Days 61 46  
Month to date heating degree days 1143 1032  
Since 1 July heating degree days 2774 2948  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 584 494  
Moisture  
Dew Point -2 °F    
Average Humidity 86    
Maximum Humidity 95    
Minimum Humidity 76    
Precipitation  
Precipitation 0.00 in 0.01 in 0.08 in (2017)
Month to date precipitation 0.24 0.22  
Year to date precipitation 11.08 9.33  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 3.7  
Since 1 July snowfall 18.7  
Snow Depth 2.00 in    
Sea Level Pressure  
Sea Level Pressure 30.42 in    
Wind  
Wind Speed 2 mph (North)    
Max Wind Speed 6 mph    
Max Gust Speed -    
Visibility 4 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Dec. 23, 2011 Rise Set
Actual Time 7:42 AM MST 4:42 PM MST
Civil Twilight 7:10 AM MST 5:15 PM MST
Nautical Twilight 6:34 AM MST 5:51 PM MST
Astronomical Twilight 5:59 AM MST 6:25 PM MST
Moon 6:36 AM MST (12/23) 3:54 PM MST (12/23)
Length of Visible Light 10h 04m
Length of Day
8h 59m
Waning Crescent, 1% of the Moon is Illuminated
Dec 23
Waning Crescent
Dec 24
New
Dec 31
First Quarter
Jan 9
Full
Jan 16
Last Quarter

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:00 AM 5.0 °F - 1.4 °F 85% 30.27 in 1.5 mi Calm Calm - N/A   Clear
12:08 AM 3.2 °F - 1.4 °F 92% 30.27 in 0.5 mi Calm Calm - N/A Fog Light Freezing Fog
12:24 AM 1.4 °F -6.2 °F -0.4 °F 92% 30.27 in 0.2 mi NNE 3.5 mph - N/A Fog Light Freezing Fog
12:53 AM 3.9 °F -5.3 °F 1.0 °F 88% 30.51 in 0.2 mi NNE 4.6 mph - N/A Fog Light Freezing Fog
1:12 AM 3.2 °F -4.2 °F 1.4 °F 92% 30.26 in 0.2 mi NE 3.5 mph - N/A Fog Light Freezing Fog
1:23 AM 3.2 °F -6.2 °F -0.4 °F 85% 30.26 in 0.8 mi NNE 4.6 mph - N/A   Mist
1:35 AM 3.2 °F -7.8 °F 1.4 °F 92% 30.27 in 1.0 mi North 5.8 mph - N/A   Mist
1:46 AM 5.0 °F -6.9 °F 1.4 °F 85% 30.27 in 0.8 mi North 6.9 mph - N/A   Mist
1:53 AM 6.1 °F -2.8 °F 1.9 °F 83% 30.50 in 0.5 mi North 4.6 mph - N/A Fog Light Freezing Fog
2:29 AM 6.8 °F -2.0 °F 3.2 °F 85% 30.28 in 0.2 mi NNE 4.6 mph - N/A Fog Light Freezing Fog
2:53 AM 5.0 °F -4.1 °F 1.9 °F 87% 30.52 in 0.2 mi North 4.6 mph - N/A Fog Light Freezing Fog
3:13 AM 3.2 °F -6.2 °F 1.4 °F 92% 30.28 in 0.5 mi ENE 4.6 mph - N/A Fog Light Freezing Fog
3:23 AM 3.2 °F - -0.4 °F 85% 30.29 in 0.2 mi Calm Calm - N/A Fog Light Freezing Fog
3:53 AM 1.9 °F - -0.9 °F 88% 30.53 in 0.2 mi Calm Calm - N/A Fog Light Freezing Fog
4:09 AM -0.4 °F -12.0 °F -4.0 °F 85% 30.28 in 0.5 mi SW 5.8 mph - N/A Fog Light Freezing Fog
4:39 AM -0.4 °F -8.3 °F -4.0 °F 85% 30.28 in 0.2 mi Variable 3.5 mph - N/A Fog Light Freezing Fog
4:53 AM -0.4 °F -8.3 °F -4.0 °F 85% 30.28 in 0.5 mi Variable 3.5 mph - N/A Fog Light Freezing Fog
5:08 AM -0.4 °F -8.3 °F -5.8 °F 78% 30.28 in 0.2 mi West 3.5 mph - N/A   Haze
5:53 AM -2.0 °F - -6.0 °F 83% 30.59 in 0.5 mi Calm Calm - N/A Fog Light Freezing Fog
6:12 AM -2.2 °F - -5.8 °F 85% 30.30 in 0.2 mi Calm Calm - N/A Fog Light Freezing Fog
6:32 AM -2.2 °F -12.5 °F -7.6 °F 78% 30.31 in 0.5 mi NW 4.6 mph - N/A   Haze
6:53 AM -2.9 °F -11.2 °F -7.1 °F 82% 30.62 in 1.0 mi WSW 3.5 mph - N/A   Mist
6:57 AM -2.2 °F -10.4 °F -7.6 °F 78% 30.30 in 3.0 mi SW 3.5 mph - N/A   Mostly Cloudy
7:05 AM -4.0 °F -14.6 °F -7.6 °F 85% 30.31 in 1.5 mi SW 4.6 mph - N/A   Mostly Cloudy
7:27 AM -2.2 °F - -5.8 °F 85% 30.31 in 0.5 mi Calm Calm - N/A Fog Light Freezing Fog
7:53 AM -4.0 °F -12.4 °F -8.0 °F 83% 30.64 in 0.2 mi WNW 3.5 mph - N/A Fog Light Freezing Fog
7:59 AM -4.0 °F -14.6 °F -7.6 °F 85% 30.32 in 1.0 mi NW 4.6 mph - N/A   Mist
8:03 AM -4.0 °F -14.6 °F -9.4 °F 78% 30.32 in 3.0 mi NNW 4.6 mph - N/A   Haze
8:10 AM -4.0 °F -16.3 °F -9.4 °F 78% 30.33 in 10.0 mi North 5.8 mph - N/A   Scattered Clouds
8:31 AM -0.4 °F -8.3 °F -5.8 °F 78% 30.33 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
8:39 AM -0.4 °F - -5.8 °F 78% 30.33 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:53 AM 1.9 °F - -2.0 °F 83% 30.63 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:53 AM 1.0 °F -6.7 °F -2.9 °F 83% 30.67 in 2.5 mi ENE 3.5 mph - N/A   Scattered Clouds
9:55 AM 1.4 °F -6.2 °F -2.2 °F 85% 30.36 in 1.8 mi ENE 3.5 mph - N/A   Mostly Cloudy
10:07 AM 1.4 °F -6.2 °F -2.2 °F 85% 30.36 in 0.8 mi NNE 3.5 mph - N/A   Haze
10:15 AM 1.4 °F -8.3 °F -2.2 °F 85% 30.36 in 1.0 mi NE 4.6 mph - N/A   Overcast
10:33 AM 1.4 °F -6.2 °F -2.2 °F 85% 30.36 in 0.8 mi East 3.5 mph - N/A   Overcast
10:53 AM 3.2 °F - -0.4 °F 85% 30.36 in 1.5 mi Calm Calm - N/A   Overcast
11:01 AM 3.2 °F - -0.4 °F 85% 30.35 in 3.0 mi Calm Calm - N/A   Overcast
11:26 AM 6.8 °F -2.0 °F 1.4 °F 79% 30.35 in 6.0 mi North 4.6 mph - N/A   Haze
11:53 AM 8.1 °F - 3.0 °F 80% 30.61 in 8.0 mi Calm Calm - N/A   Clear
12:36 PM 10.4 °F 2.2 °F 8.6 °F 92% 30.31 in 3.0 mi SSW 4.6 mph - N/A   Scattered Clouds
12:53 PM 9.0 °F - 7.0 °F 92% 30.59 in 6.0 mi Calm Calm - N/A   Partly Cloudy
1:53 PM 10.9 °F - 7.0 °F 84% 30.56 in 9.0 mi Calm Calm - N/A   Clear
2:53 PM 10.9 °F 4.7 °F 5.0 °F 77% 30.57 in 9.0 mi SE 3.5 mph - N/A   Clear
3:53 PM 10.0 °F - 5.0 °F 80% 30.58 in 10.0 mi Calm Calm - N/A   Clear
4:53 PM 7.0 °F - 3.0 °F 84% 30.60 in 10.0 mi Calm Calm - N/A   Clear
5:53 PM 5.0 °F - -0.4 °F 78% 30.30 in 10.0 mi Calm Calm - N/A   Clear
6:53 PM 1.9 °F - -2.9 °F 80% 30.66 in 10.0 mi Calm Calm - N/A   Clear
7:53 PM -0.0 °F -11.6 °F -4.0 °F 83% 30.69 in 10.0 mi NW 5.8 mph - N/A   Clear
8:53 PM -0.9 °F - -6.0 °F 79% 30.67 in 10.0 mi Calm Calm - N/A   Clear
9:53 PM 3.0 °F - -2.9 °F 76% 30.68 in 10.0 mi Calm Calm - N/A   Clear
10:53 PM -0.0 °F - -2.9 °F 88% 30.69 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM -0.9 °F -8.9 °F -5.1 °F 83% 30.69 in 10.0 mi North 3.5 mph - N/A   Clear