Weather History for Lewistown, MT

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Friday, December 30, 2011

  Actual Average Record
Temperature  
Mean Temperature 40 °F 22 °F  
Max Temperature 51 °F 33 °F 58 °F (1904)
Min Temperature 29 °F 12 °F -34 °F (1978)
Degree Days  
Heating Degree Days 25 42  
Month to date heating degree days 1122 1254  
Since 1 July heating degree days 2952 3382  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 215 210  
Moisture  
Dew Point 28 °F    
Average Humidity 54    
Maximum Humidity 75    
Minimum Humidity 32    
Precipitation  
Precipitation T in 0.03 in 0.50 in (1900)
Month to date precipitation 0.16 0.64  
Year to date precipitation 22.11 16.83  
Snow  
Snow 0.00 in - - ()
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.56 in    
Wind  
Wind Speed 17 mph (SW)    
Max Wind Speed 32 mph    
Max Gust Speed 41 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 30, 2011 Rise Set
Actual Time 8:03 AM MST 4:37 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 10:58 AM MST (12/30) 11:43 PM MST (12/30)
Length of Visible Light 9h 44m
Length of Day
8h 33m
Waxing Crescent, 36% of the Moon is Illuminated
Dec 30
Waxing Crescent
Dec 31
First Quarter
Jan 9
Full
Jan 16
Last Quarter
Jan 23
New

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 32.0 °F 25.6 °F 12.0 °F 44% 29.80 in 10.0 mi NE 6.9 mph - N/A   Clear
2:54 AM 39.9 °F 32.1 °F 14.0 °F 35% 29.73 in 10.0 mi SW 13.8 mph - N/A   Overcast
3:54 AM 42.1 °F 33.3 °F 15.1 °F 34% 29.71 in 10.0 mi SSW 19.6 mph 25.3 mph N/A   Overcast
5:54 AM 42.1 °F 33.3 °F 25.0 °F 51% 29.66 in 10.0 mi SW 19.6 mph 31.1 mph N/A   Overcast
6:54 AM 42.1 °F 32.1 °F 27.0 °F 55% 29.62 in 10.0 mi SSW 25.3 mph 31.1 mph N/A   Overcast
7:54 AM 42.1 °F 32.3 °F 30.0 °F 62% 29.60 in 10.0 mi SSW 24.2 mph 31.1 mph N/A   Overcast
8:54 AM 44.1 °F 34.4 °F 30.0 °F 58% 29.59 in 10.0 mi SW 27.6 mph 41.4 mph N/A   Mostly Cloudy
9:54 AM 45.0 °F 35.8 °F 30.9 °F 58% 29.57 in 10.0 mi SW 26.5 mph 36.8 mph N/A   Partly Cloudy
10:54 AM 46.0 °F 37.4 °F 30.9 °F 56% 29.55 in 10.0 mi SW 25.3 mph 33.4 mph N/A   Scattered Clouds
11:54 AM 46.9 °F - 30.9 °F 54% 29.53 in 10.0 mi SW 18.4 mph - N/A   Overcast
12:54 PM 48.9 °F - 30.9 °F 50% 29.49 in 10.0 mi SW 19.6 mph 27.6 mph N/A   Overcast
1:54 PM 50.0 °F - 30.9 °F 48% 29.44 in 10.0 mi SW 18.4 mph - N/A   Scattered Clouds
2:54 PM 50.0 °F - 33.1 °F 52% 29.45 in 10.0 mi West 25.3 mph 31.1 mph N/A   Overcast
3:54 PM 46.0 °F 38.5 °F 34.0 °F 63% 29.47 in 10.0 mi WSW 19.6 mph 27.6 mph N/A   Overcast
4:54 PM 45.0 °F 39.7 °F 34.0 °F 65% 29.50 in 10.0 mi West 10.4 mph - N/A   Overcast
5:54 PM 41.0 °F 34.7 °F 34.0 °F 76% 29.51 in 10.0 mi SW 10.4 mph - N/A   Overcast
6:54 PM 41.0 °F 33.5 °F 32.0 °F 70% 29.52 in 10.0 mi WSW 13.8 mph - 0.00 in   Overcast
7:54 PM 39.9 °F 32.5 °F 28.0 °F 63% 29.52 in 10.0 mi WSW 12.7 mph - N/A   Overcast
8:54 PM 37.0 °F 31.0 °F 28.0 °F 70% 29.51 in 10.0 mi WSW 8.1 mph - N/A   Overcast
9:54 PM 36.0 °F 28.5 °F 28.0 °F 73% 29.53 in 10.0 mi SW 10.4 mph - N/A   Overcast
10:54 PM 34.0 °F 26.0 °F 27.0 °F 75% 29.52 in 10.0 mi SW 10.4 mph - N/A   Clear
11:54 PM 34.0 °F 28.0 °F 26.1 °F 73% 29.52 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy