Weather History for Lewistown, MT

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Saturday, December 29, 2012

  Actual Average Record
Temperature  
Mean Temperature 19 °F 22 °F  
Max Temperature 30 °F 33 °F 65 °F (1956)
Min Temperature 7 °F 12 °F -41 °F (1968)
Degree Days  
Heating Degree Days 46 43  
Month to date heating degree days 1191 1212  
Since 1 July heating degree days 3104 3340  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 314 210  
Moisture  
Dew Point 9 °F    
Average Humidity 64    
Maximum Humidity 80    
Minimum Humidity 47    
Precipitation  
Precipitation 0.00 in 0.02 in 0.33 in (2005)
Month to date precipitation 0.34 0.61  
Year to date precipitation 15.34 16.80  
Snow  
Snow 0.00 in - - ()
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 5 mph (SSE)    
Max Wind Speed 10 mph    
Max Gust Speed 12 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 29, 2012 Rise Set
Actual Time 8:03 AM MST 4:36 PM MST
Civil Twilight 7:28 AM MST 5:12 PM MST
Nautical Twilight 6:49 AM MST 5:51 PM MST
Astronomical Twilight 6:12 AM MST 6:28 PM MST
Moon 6:20 PM MST (12/29) 8:33 AM MST (12/29)
Length of Visible Light 9h 44m
Length of Day
8h 33m
Full, 98% of the Moon is Illuminated
Dec 29
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

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 15.1 °F 7.7 °F 7.0 °F 70% 30.11 in 10.0 mi ESE 4.6 mph - N/A   Clear
1:54 AM 10.9 °F 1.4 °F 3.9 °F 73% 30.12 in 10.0 mi South 5.8 mph - N/A   Clear
2:54 AM 10.0 °F 1.8 °F 3.9 °F 76% 30.12 in 10.0 mi SE 4.6 mph - N/A   Clear
3:54 AM 8.1 °F -2.0 °F 3.0 °F 80% 30.14 in 10.0 mi SE 5.8 mph - N/A   Clear
5:54 AM 9.0 °F -2.2 °F 3.0 °F 77% 30.14 in 10.0 mi ESE 6.9 mph - N/A   Clear
6:54 AM 10.0 °F 0.4 °F 3.9 °F 76% 30.13 in 10.0 mi SE 5.8 mph - N/A   Clear
7:54 AM 10.9 °F 0.2 °F 5.0 °F 77% 30.12 in 10.0 mi SE 6.9 mph - N/A   Clear
8:54 AM 16.0 °F 6.3 °F 8.1 °F 71% 30.10 in 10.0 mi ESE 6.9 mph - N/A   Clear
9:54 AM 19.0 °F 10.0 °F 10.0 °F 68% 30.09 in 10.0 mi ESE 6.9 mph - N/A   Clear
10:54 AM 23.0 °F 15.8 °F 12.0 °F 63% 30.08 in 10.0 mi SE 5.8 mph - N/A   Clear
11:54 AM 26.1 °F 21.9 °F 14.0 °F 60% 30.05 in 10.0 mi SE 3.5 mph - N/A   Clear
12:54 PM 30.0 °F 26.5 °F 12.9 °F 49% 30.03 in 10.0 mi East 3.5 mph - N/A   Clear
1:54 PM 28.9 °F - 16.0 °F 58% 30.02 in 10.0 mi Calm Calm - N/A   Clear
2:54 PM 28.0 °F - 15.1 °F 58% 30.03 in 10.0 mi Calm Calm - N/A   Clear
3:54 PM 27.0 °F - 12.0 °F 53% 30.04 in 10.0 mi Calm Calm - N/A   Clear
4:54 PM 19.0 °F 12.3 °F 10.0 °F 68% 30.07 in 10.0 mi WNW 4.6 mph - N/A   Clear
5:54 PM 17.1 °F 6.6 °F 7.0 °F 65% 30.07 in 10.0 mi SW 8.1 mph - N/A   Clear
6:54 PM 19.9 °F 8.6 °F 10.0 °F 65% 30.07 in 10.0 mi WSW 10.4 mph - N/A   Partly Cloudy
7:54 PM 19.9 °F 14.9 °F 10.0 °F 65% 30.06 in 10.0 mi Variable 3.5 mph - N/A   Partly Cloudy
8:54 PM 15.1 °F - 8.1 °F 74% 30.07 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:54 PM 14.0 °F 2.9 °F 7.0 °F 74% 30.07 in 10.0 mi West 8.1 mph - N/A   Clear
10:54 PM 12.9 °F 1.6 °F 6.1 °F 74% 30.08 in 10.0 mi WSW 8.1 mph - N/A   Clear
11:28 PM 17.6 °F 8.2 °F 8.6 °F 68% 29.93 in 10.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
11:43 PM 15.8 °F 5.1 °F 8.6 °F 73% 29.93 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
11:54 PM 16.0 °F 5.3 °F 9.0 °F 74% 30.07 in 10.0 mi SW 8.1 mph - N/A   Scattered Clouds