Weather History for Lewistown, MT

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Thursday, January 3, 2013

  Actual Average Record
Temperature  
Mean Temperature -3 °C -5 °C  
Max Temperature 5 °C 1 °C 13 °C (1981)
Min Temperature -12 °C -11 °C -35 °C (1950)
Degree Days  
Heating Degree Days 39 42  
Month to date heating degree days 127 126  
Since 1 July heating degree days 3331 3548  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point -14 °C    
Average Humidity 47    
Maximum Humidity 62    
Minimum Humidity 32    
Precipitation  
Precipitation 0.00 mm 0.51 mm 0.69 mm (1977)
Month to date precipitation T 0.06  
Year to date precipitation T 0.06  
Snow  
Snow 0.00 cm - - ()
Snow Depth 7.62 cm    
Sea Level Pressure  
Sea Level Pressure 1024 hPa    
Wind  
Wind Speed 9 km/h (SE)    
Max Wind Speed 19 km/h    
Max Gust Speed 21 km/h    
Visibility 16 kilometers    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 03, 2013 Rise Set
Actual Time 8:03 AM MST 4:41 PM MST
Civil Twilight 7:28 AM MST 5:16 PM MST
Nautical Twilight 6:50 AM MST 5:55 PM MST
Astronomical Twilight 6:13 AM MST 6:32 PM MST
Moon 11:49 PM MST (1/3) 10:50 AM MST (1/3)
Length of Visible Light 9h 48m
Length of Day
8h 37m
Waning Gibbous, 65% of the Moon is Illuminated
Jan 3
Waning Gibbous
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 -11.1 °C -17.5 °C -18.3 °C 56% 1027.4 hPa 16.1 km SE 13.0 km/h / 3.6 m/s - N/A   Clear
1:54 AM -10.6 °C -17.4 °C -18.3 °C 54% 1026.2 hPa 16.1 km SE 14.8 km/h / 4.1 m/s - N/A   Clear
2:54 AM -9.4 °C -16.4 °C -18.3 °C 49% 1025.5 hPa 16.1 km SE 16.7 km/h / 4.6 m/s - N/A   Clear
3:54 AM -8.9 °C -15.3 °C -18.3 °C 47% 1025.1 hPa 16.1 km SE 14.8 km/h / 4.1 m/s - N/A   Clear
4:54 AM -11.1 °C -15.5 °C -18.3 °C 56% 1025.3 hPa 16.1 km South 7.4 km/h / 2.1 m/s - N/A   Clear
5:54 AM -8.9 °C -13.7 °C -17.8 °C 49% 1024.7 hPa 16.1 km SSE 9.3 km/h / 2.6 m/s - N/A   Clear
6:54 AM -8.3 °C -14.1 °C -17.8 °C 47% 1024.7 hPa 16.1 km SSE 13.0 km/h / 3.6 m/s - N/A   Clear
7:54 AM -10.0 °C -15.0 °C -17.2 °C 56% 1025.0 hPa 16.1 km SE 9.3 km/h / 2.6 m/s - N/A   Clear
8:54 AM -8.9 °C -13.7 °C -16.7 °C 54% 1024.9 hPa 16.1 km SSE 9.3 km/h / 2.6 m/s - N/A   Clear
9:54 AM -5.6 °C -8.2 °C -15.0 °C 48% 1024.3 hPa 16.1 km SE 5.6 km/h / 1.5 m/s - N/A   Clear
10:54 AM -1.7 °C - -13.3 °C 41% 1023.8 hPa 16.1 km Calm Calm - N/A   Clear
11:54 AM -0.6 °C - -12.8 °C 40% 1022.9 hPa 16.1 km Calm Calm - N/A   Clear
12:54 PM 2.8 °C - -10.6 °C 37% 1022.0 hPa 16.1 km Calm Calm - N/A   Clear
1:54 PM 2.8 °C - -11.7 °C 34% 1022.0 hPa 16.1 km Calm Calm - N/A   Clear
2:54 PM 1.7 °C - -7.2 °C 52% 1022.2 hPa 16.1 km Calm Calm - N/A   Clear
3:54 PM 0.6 °C -3.9 °C -10.0 °C 46% 1022.2 hPa 16.1 km SSW 16.7 km/h / 4.6 m/s - N/A   Clear
4:54 PM -0.6 °C -3.8 °C -10.6 °C 47% 1022.9 hPa 16.1 km ESE 9.3 km/h / 2.6 m/s - N/A   Clear
5:54 PM -3.3 °C -7.5 °C -11.7 °C 53% 1023.4 hPa 16.1 km SSE 11.1 km/h / 3.1 m/s - N/A   Clear
6:54 PM -6.7 °C -11.0 °C -13.3 °C 60% 1023.5 hPa 16.1 km SE 9.3 km/h / 2.6 m/s - N/A   Clear
7:54 PM -4.4 °C -8.9 °C -12.2 °C 55% 1023.2 hPa 16.1 km SSE 11.1 km/h / 3.1 m/s - N/A   Clear
8:54 PM -8.3 °C - -13.9 °C 65% 1023.3 hPa 16.1 km Calm Calm - N/A   Clear
9:54 PM -6.1 °C -11.4 °C -13.3 °C 57% 1022.0 hPa 16.1 km SE 13.0 km/h / 3.6 m/s - N/A   Clear
10:54 PM -7.8 °C -13.5 °C -13.9 °C 62% 1021.2 hPa 16.1 km SE 13.0 km/h / 3.6 m/s - N/A   Clear
11:54 PM -6.1 °C -10.9 °C -13.3 °C 57% 1020.4 hPa 16.1 km SE 11.1 km/h / 3.1 m/s - N/A   Clear