Weather History for Lewistown, MT

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Thursday, February 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 20 °F 26 °F  
Max Temperature 31 °F 37 °F 62 °F (1982)
Min Temperature 9 °F 16 °F -22 °F (1957)
Degree Days  
Heating Degree Days 45 38  
Month to date heating degree days 813 835  
Since 1 July heating degree days 5238 5540  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 12 °F    
Average Humidity 74    
Maximum Humidity 100    
Minimum Humidity 47    
Precipitation  
Precipitation 0.00 in 0.02 in 0.38 in (1967)
Month to date precipitation 0.51 0.33  
Year to date precipitation 1.80 0.90  
Snow  
Snow 0.00 in - - ()
Snow Depth 1.00 in    
Sea Level Pressure  
Sea Level Pressure 29.98 in    
Wind  
Wind Speed 5 mph (South)    
Max Wind Speed 14 mph    
Max Gust Speed 15 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 21, 2013 Rise Set
Actual Time 7:11 AM MST 5:51 PM MST
Civil Twilight 6:40 AM MST 6:22 PM MST
Nautical Twilight 6:05 AM MST 6:58 PM MST
Astronomical Twilight 5:30 AM MST 7:33 PM MST
Moon 1:59 PM MST (2/21) 4:29 AM MST (2/21)
Length of Visible Light 11h 42m
Length of Day
10h 40m
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 16.0 °F 10.4 °F 14.0 °F 92% 29.99 in 10.0 mi ESE 3.5 mph - N/A   Overcast
1:54 AM 15.1 °F 7.7 °F 12.9 °F 91% 29.99 in 10.0 mi SE 4.6 mph - N/A   Partly Cloudy
2:54 AM 14.0 °F 6.5 °F 10.9 °F 88% 29.99 in 10.0 mi SSE 4.6 mph - N/A   Clear
4:39 AM 10.4 °F 4.0 °F 8.6 °F 92% 29.85 in 10.0 mi SSW 3.5 mph - N/A   Partly Cloudy
4:54 AM 10.0 °F 0.4 °F 8.1 °F 92% 30.03 in 10.0 mi SSE 5.8 mph - N/A   Clear
5:54 AM 10.9 °F 1.4 °F 8.1 °F 88% 30.03 in 10.0 mi SE 5.8 mph - N/A   Partly Cloudy
6:54 AM 9.0 °F -0.9 °F 7.0 °F 92% 30.03 in 10.0 mi SE 5.8 mph - N/A   Clear
7:54 AM 10.0 °F 0.4 °F 8.1 °F 92% 30.03 in 10.0 mi SE 5.8 mph - N/A   Clear
8:54 AM 12.9 °F 5.2 °F 10.9 °F 92% 30.04 in 10.0 mi SE 4.6 mph - N/A   Clear
9:54 AM 16.0 °F - 15.1 °F 96% 30.04 in 10.0 mi Calm Calm - N/A   Clear
10:54 AM 21.9 °F - 17.1 °F 82% 30.02 in 10.0 mi Calm Calm - N/A   Scattered Clouds
11:54 AM 28.0 °F - 17.1 °F 63% 29.99 in 10.0 mi Calm Calm - N/A   Scattered Clouds
12:54 PM 30.9 °F - 14.0 °F 50% 29.96 in 10.0 mi Calm Calm - N/A   Clear
1:54 PM 30.9 °F - 15.1 °F 52% 29.96 in 10.0 mi Calm Calm - N/A   Clear
2:54 PM 30.0 °F 26.5 °F 12.9 °F 49% 29.96 in 10.0 mi NW 3.5 mph - N/A   Clear
3:54 PM 28.9 °F 21.9 °F 14.0 °F 54% 29.97 in 10.0 mi NW 6.9 mph - N/A   Clear
4:54 PM 27.0 °F 20.5 °F 12.0 °F 53% 29.98 in 10.0 mi NW 5.8 mph - N/A   Scattered Clouds
5:54 PM 23.0 °F 18.4 °F 15.1 °F 72% 29.99 in 10.0 mi SW 3.5 mph - N/A   Overcast
6:54 PM 25.0 °F 16.3 °F 14.0 °F 63% 29.98 in 10.0 mi South 8.1 mph - N/A   Overcast
7:54 PM 19.9 °F 12.1 °F 10.9 °F 68% 29.99 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
8:54 PM 17.1 °F 5.0 °F 7.0 °F 65% 29.97 in 10.0 mi South 10.4 mph - N/A   Clear
9:54 PM 19.9 °F 13.4 °F 10.0 °F 65% 29.96 in 10.0 mi SSE 4.6 mph - N/A   Overcast
10:54 PM 21.9 °F 9.8 °F 12.0 °F 66% 29.94 in 10.0 mi SW 12.7 mph - N/A   Overcast
11:54 PM 24.1 °F 13.7 °F 14.0 °F 65% 29.91 in 10.0 mi SW 10.4 mph - N/A   Overcast