Weather History for Rock Springs, WY

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Thursday, February 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 22 °F 26 °F  
Max Temperature 27 °F 35 °F 59 °F (1982)
Min Temperature 17 °F 16 °F -3 °F (1952)
Degree Days  
Heating Degree Days 43 40  
Month to date heating degree days 798 880  
Since 1 July heating degree days 5167 5584  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 16 °F    
Average Humidity 76    
Maximum Humidity 84    
Minimum Humidity 68    
Precipitation  
Precipitation T in 0.02 in 0.19 in (1979)
Month to date precipitation T 0.36  
Year to date precipitation T 0.81  
Sea Level Pressure  
Sea Level Pressure 29.83 in    
Wind  
Wind Speed 9 mph (SW)    
Max Wind Speed 20 mph    
Max Gust Speed 24 mph    
Visibility 4 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Feb. 21, 2013 Rise Set
Actual Time 7:02 AM MST 5:57 PM MST
Civil Twilight 6:34 AM MST 6:25 PM MST
Nautical Twilight 6:02 AM MST 6:58 PM MST
Astronomical Twilight 5:30 AM MST 7:30 PM MST
Moon 2:13 PM MST (2/21) 4:11 AM MST (2/21)
Length of Visible Light 11h 51m
Length of Day
10h 55m
Waxing Gibbous, 84% of the Moon is Illuminated
Feb 21
Waxing Gibbous
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 19.9 °F - 12.0 °F 71% 29.70 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:54 AM 18.0 °F 9.8 °F 10.9 °F 74% 29.73 in 10.0 mi SE 5.8 mph - N/A   Scattered Clouds
2:54 AM 21.0 °F - 12.9 °F 71% 29.73 in 10.0 mi Calm Calm - N/A   Overcast
3:54 AM 19.0 °F 7.5 °F 12.0 °F 74% 29.76 in 10.0 mi East 10.4 mph - N/A   Overcast
4:47 AM 19.4 °F 6.6 °F 12.2 °F 74% 29.70 in 4.0 mi ENE 12.7 mph - 0.00 in Snow Light Snow
4:54 AM 19.0 °F 6.1 °F 12.9 °F 77% 29.79 in 3.0 mi ENE 12.7 mph - 0.00 in Snow Light Snow
5:10 AM 17.6 °F 5.7 °F 12.2 °F 79% 29.71 in 3.0 mi ENE 10.4 mph - 0.00 in Snow Light Snow
5:18 AM 17.6 °F 6.4 °F 12.2 °F 79% 29.71 in 3.0 mi ENE 9.2 mph - 0.00 in Snow Light Snow
5:54 AM 17.1 °F 5.0 °F 12.0 °F 81% 29.84 in 6.0 mi ENE 10.4 mph - 0.00 in   Haze
6:13 AM 17.6 °F 5.7 °F 12.2 °F 79% 29.73 in 6.0 mi ENE 10.4 mph - 0.00 in Snow Light Snow
6:52 AM 17.6 °F 4.3 °F 14.0 °F 86% 29.74 in 3.0 mi ENE 12.7 mph - 0.00 in Snow Light Snow
6:54 AM 18.0 °F 5.4 °F 14.0 °F 84% 29.86 in 2.5 mi ENE 11.5 mph - 0.00 in Snow Light Snow
7:06 AM 17.6 °F 4.3 °F 14.0 °F 86% 29.74 in 1.8 mi ENE 12.7 mph - 0.00 in Snow Light Snow
7:49 AM 17.6 °F 6.4 °F 14.0 °F 86% 29.76 in 1.2 mi ENE 9.2 mph - 0.00 in Snow Light Snow
7:54 AM 18.0 °F 6.1 °F 14.0 °F 84% 29.89 in 1.0 mi ENE 10.4 mph - 0.00 in Snow Light Snow
8:28 AM 19.4 °F 7.9 °F 15.8 °F 86% 29.78 in 1.5 mi ENE 10.4 mph - 0.00 in Snow Light Snow
8:47 AM 19.4 °F 8.6 °F 15.8 °F 86% 29.79 in 2.0 mi East 9.2 mph - 0.00 in Snow Light Snow
8:54 AM 19.9 °F 10.1 °F 15.1 °F 81% 29.91 in 2.5 mi ENE 8.1 mph - 0.00 in Snow Light Snow
9:09 AM 19.4 °F 9.5 °F 15.8 °F 86% 29.79 in 1.8 mi East 8.1 mph - 0.00 in Snow Light Snow
9:54 AM 21.9 °F 13.4 °F 17.1 °F 82% 29.93 in 1.2 mi East 6.9 mph - 0.00 in Snow Light Snow
10:36 AM 23.0 °F 14.7 °F 15.8 °F 74% 29.80 in 2.5 mi East 6.9 mph - 0.00 in Snow Light Snow
10:54 AM 24.1 °F 18.2 °F 17.1 °F 75% 29.92 in 1.5 mi East 4.6 mph - 0.00 in Snow Light Snow
11:04 AM 24.8 °F 19.1 °F 17.6 °F 74% 29.80 in 1.5 mi ESE 4.6 mph - 0.00 in Snow Light Snow
11:21 AM 23.0 °F 18.4 °F 15.8 °F 74% 29.80 in 1.8 mi East 3.5 mph - 0.00 in Snow Light Snow
11:43 AM 24.8 °F 20.5 °F 17.6 °F 74% 29.80 in 1.0 mi Variable 3.5 mph - 0.00 in Snow Light Snow
11:51 AM 24.8 °F - 17.6 °F 74% 29.80 in 1.0 mi Calm Calm - 0.00 in Snow Light Snow
11:54 AM 24.1 °F - 17.1 °F 75% 29.92 in 1.0 mi Calm Calm - 0.00 in Snow Light Snow
12:15 PM 24.8 °F - 17.6 °F 74% 29.80 in 2.0 mi Calm Calm - 0.00 in   Haze
12:31 PM 24.8 °F - 15.8 °F 69% 29.80 in 4.0 mi Calm Calm - 0.00 in   Haze
12:52 PM 24.8 °F - 17.6 °F 74% 29.79 in 2.5 mi Calm Calm - 0.00 in Snow Light Snow
12:54 PM 24.1 °F - 17.1 °F 75% 29.92 in 3.0 mi Calm Calm - 0.00 in Snow Light Snow
1:38 PM 24.8 °F 19.1 °F 19.4 °F 80% 29.78 in 2.0 mi WSW 4.6 mph - N/A   Haze
1:54 PM 25.0 °F 19.3 °F 19.0 °F 78% 29.91 in 2.0 mi West 4.6 mph - 0.00 in Snow Light Snow
2:03 PM 26.6 °F 19.1 °F 17.6 °F 69% 29.78 in 9.0 mi West 6.9 mph - 0.00 in   Overcast
2:54 PM 26.1 °F 17.6 °F 19.0 °F 75% 29.89 in 3.0 mi WSW 8.1 mph - 0.00 in Snow Light Snow
3:54 PM 26.1 °F 18.4 °F 19.0 °F 75% 29.91 in 2.5 mi West 6.9 mph - 0.00 in Snow Light Snow
4:14 PM 26.6 °F 19.1 °F 19.4 °F 74% 29.79 in 3.0 mi West 6.9 mph - 0.00 in Snow Light Snow
4:22 PM 26.6 °F 20.0 °F 19.4 °F 74% 29.79 in 2.0 mi West 5.8 mph - 0.00 in Snow Light Snow
4:38 PM 26.6 °F 21.2 °F 19.4 °F 74% 29.79 in 1.0 mi West 4.6 mph - 0.00 in Snow Light Snow
4:54 PM 26.1 °F 19.4 °F 19.9 °F 78% 29.91 in 1.8 mi West 5.8 mph - 0.00 in Snow Light Snow
5:24 PM 26.6 °F 17.5 °F 19.4 °F 74% 29.79 in 3.0 mi WSW 9.2 mph - 0.00 in Snow Light Snow
5:54 PM 25.0 °F 16.3 °F 19.9 °F 81% 29.93 in 10.0 mi West 8.1 mph - 0.00 in   Overcast
6:49 PM 24.8 °F 12.4 °F 15.8 °F 69% 29.81 in 10.0 mi WSW 15.0 mph - 0.00 in   Overcast
6:54 PM 23.0 °F 10.6 °F 16.0 °F 74% 29.94 in 10.0 mi WSW 13.8 mph - 0.00 in   Overcast
7:10 PM 23.0 °F 11.1 °F 15.8 °F 74% 29.81 in 10.0 mi WSW 12.7 mph - N/A   Scattered Clouds
7:54 PM 21.0 °F 7.1 °F 14.0 °F 74% 29.97 in 10.0 mi WSW 16.1 mph - N/A   Clear
8:54 PM 21.0 °F 7.6 °F 14.0 °F 74% 29.97 in 10.0 mi WSW 15.0 mph - N/A   Overcast
9:30 PM 19.4 °F 4.5 °F 14.0 °F 80% 29.84 in 2.5 mi WSW 17.3 mph - 0.00 in Snow Light Snow
9:38 PM 19.4 °F 4.5 °F 15.8 °F 86% 29.84 in 1.2 mi WSW 17.3 mph - 0.00 in Snow Light Snow
9:47 PM 19.4 °F 4.1 °F 15.8 °F 86% 29.84 in 3.0 mi WSW 18.4 mph - 0.00 in Snow Light Snow
9:54 PM 19.9 °F 4.3 °F 15.1 °F 81% 29.99 in 8.0 mi WSW 19.6 mph - 0.00 in Snow Light Snow
10:09 PM 19.4 °F 4.1 °F 14.0 °F 80% 29.85 in 9.0 mi WSW 18.4 mph - 0.00 in Snow Light Snow
10:26 PM 19.4 °F 5.5 °F 14.0 °F 80% 29.85 in 10.0 mi WSW 15.0 mph - 0.00 in   Overcast
10:54 PM 19.9 °F 5.2 °F 12.9 °F 74% 29.99 in 10.0 mi West 17.3 mph - 0.00 in   Overcast
11:13 PM 19.4 °F 5.0 °F 14.0 °F 80% 29.87 in 1.8 mi West 16.1 mph - 0.00 in Snow Light Snow
11:54 PM 19.0 °F 6.8 °F 12.9 °F 77% 30.01 in 10.0 mi WSW 11.5 mph - 0.00 in   Overcast