Weather History for Lewistown, MT

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Monday, January 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 25 °F 24 °F  
Max Temperature 35 °F 34 °F 61 °F (1981)
Min Temperature 14 °F 14 °F -34 °F (1927)
Degree Days  
Heating Degree Days 40 41  
Month to date heating degree days 835 873  
Since 1 July heating degree days 4039 4295  
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 °F    
Average Humidity 74    
Maximum Humidity 96    
Minimum Humidity 51    
Precipitation  
Precipitation 0.00 in 0.02 in 0.50 in (1979)
Month to date precipitation 0.73 0.40  
Year to date precipitation 0.73 0.40  
Snow  
Snow 0.00 in - - ()
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.19 in    
Wind  
Wind Speed 3 mph (South)    
Max Wind Speed 14 mph    
Max Gust Speed 16 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 21, 2013 Rise Set
Actual Time 7:54 AM MST 5:04 PM MST
Civil Twilight 7:20 AM MST 5:38 PM MST
Nautical Twilight 6:43 AM MST 6:15 PM MST
Astronomical Twilight 6:07 AM MST 6:51 PM MST
Moon 12:45 PM MST (1/21) 3:26 AM MST (1/21)
Length of Visible Light 10h 17m
Length of Day
9h 10m
Waxing Gibbous, 75% of the Moon is Illuminated
Jan 21
Waxing Gibbous
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New
Feb 17
First Quarter

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:20 AM 14.0 °F 6.5 °F 12.2 °F 93% 30.17 in 10.0 mi SE 4.6 mph - N/A   Overcast
12:54 AM 14.0 °F -0.8 °F 12.0 °F 92% 30.38 in 10.0 mi NNE 13.8 mph - N/A   Overcast
1:54 AM 15.1 °F 7.7 °F 12.0 °F 88% 30.35 in 10.0 mi South 4.6 mph - N/A   Overcast
2:54 AM 15.1 °F 7.7 °F 12.0 °F 88% 30.33 in 9.0 mi NNE 4.6 mph - N/A   Overcast
3:54 AM 16.0 °F - 12.9 °F 88% 30.32 in 10.0 mi Calm Calm - N/A   Overcast
4:54 AM 16.0 °F 6.3 °F 12.0 °F 84% 30.30 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
5:54 AM 16.0 °F - 12.9 °F 88% 30.30 in 10.0 mi Calm Calm - N/A   Overcast
6:54 AM 17.1 °F 11.7 °F 12.9 °F 84% 30.27 in 10.0 mi NE 3.5 mph - N/A   Overcast
7:54 AM 18.0 °F 12.7 °F 14.0 °F 84% 30.25 in 10.0 mi South 3.5 mph - N/A   Overcast
8:54 AM 17.1 °F - 14.0 °F 88% 30.25 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
9:54 AM 21.0 °F - 15.1 °F 78% 30.24 in 10.0 mi Calm Calm - N/A   Clear
10:54 AM 25.0 °F 20.7 °F 16.0 °F 69% 30.21 in 10.0 mi SSE 3.5 mph - N/A   Partly Cloudy
11:54 AM 27.0 °F - 19.0 °F 72% 30.18 in 8.0 mi Calm Calm - N/A   Scattered Clouds
12:54 PM 32.0 °F - 17.1 °F 54% 30.14 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:54 PM 33.1 °F - 18.0 °F 54% 30.11 in 10.0 mi Calm Calm - N/A   Clear
2:54 PM 32.0 °F - 18.0 °F 56% 30.10 in 10.0 mi Calm Calm - N/A   Clear
3:54 PM 34.0 °F - 19.0 °F 54% 30.08 in 10.0 mi Calm Calm - N/A   Clear
4:54 PM 28.9 °F - 18.0 °F 64% 30.07 in 7.0 mi Calm Calm - N/A   Clear
5:54 PM 27.0 °F - 18.0 °F 69% 30.08 in 10.0 mi Calm Calm - N/A   Clear
6:54 PM 26.1 °F - 17.1 °F 69% 30.09 in 10.0 mi Calm Calm - N/A   Clear
7:54 PM 21.0 °F 16.2 °F 12.0 °F 68% 30.10 in 10.0 mi SSW 3.5 mph - N/A   Clear
8:54 PM 21.0 °F 11.4 °F 12.0 °F 68% 30.10 in 10.0 mi SSW 8.1 mph - N/A   Clear
9:54 PM 21.0 °F 16.2 °F 10.0 °F 63% 30.10 in 10.0 mi West 3.5 mph - N/A   Clear
10:54 PM 21.0 °F 13.4 °F 9.0 °F 60% 30.09 in 10.0 mi West 5.8 mph - N/A   Clear
11:54 PM 23.0 °F 11.1 °F 9.0 °F 55% 30.08 in 10.0 mi SW 12.7 mph - N/A   Clear