Weather History for Lewistown, MT

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Monday, August 13, 2012

  Actual Average Record
Temperature  
Mean Temperature 70 °F 66 °F  
Max Temperature 84 °F 82 °F 97 °F (1973)
Min Temperature 56 °F 51 °F 36 °F (1916)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 14 21  
Since 1 June heating degree days 224 321  
Since 1 July heating degree days 24 94  
Cooling Degree Days 5 3  
Month to date cooling degree days 62 49  
Year to date cooling degree days 262 159  
Since 1 June cooling degree days 262 157  
Growing Degree Days 20 (Base 50)    
Moisture  
Dew Point 47 °F    
Average Humidity 49    
Maximum Humidity 72    
Minimum Humidity 26    
Precipitation  
Precipitation 0.00 in 0.05 in 0.58 in (1944)
Month to date precipitation 0.35 0.72  
Year to date precipitation 12.75 11.99  
Snow  
Snow 0.00 in - - ()
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.93 in    
Wind  
Wind Speed 8 mph (ENE)    
Max Wind Speed 17 mph    
Max Gust Speed 23 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Aug. 13, 2012 Rise Set
Actual Time 6:13 AM MDT 8:31 PM MDT
Civil Twilight 5:39 AM MDT 9:04 PM MDT
Nautical Twilight 4:57 AM MDT 9:46 PM MDT
Astronomical Twilight 4:09 AM MDT 10:33 PM MDT
Moon 2:10 AM MDT (8/13) 5:52 PM MDT (8/13)
Length of Visible Light 15h 25m
Length of Day
14h 18m
Waning Crescent, 16% of the Moon is Illuminated
Aug 13
Waning Crescent
Aug 17
New
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 64.9 °F 48.0 °F 54% 30.01 in 10.0 mi East 16.1 mph - N/A   Clear
1:54 AM 64.0 °F 48.0 °F 56% 29.99 in 10.0 mi East 15.0 mph - N/A   Clear
2:54 AM 62.1 °F 48.0 °F 60% 29.98 in 10.0 mi East 11.5 mph - N/A   Clear
3:54 AM 62.1 °F 46.9 °F 58% 29.97 in 10.0 mi East 10.4 mph - N/A   Clear
4:54 AM 57.9 °F 46.9 °F 67% 29.97 in 10.0 mi ESE 6.9 mph - N/A   Clear
5:54 AM 57.9 °F 46.9 °F 67% 29.96 in 10.0 mi SE 8.1 mph - N/A   Clear
6:54 AM 57.9 °F 48.0 °F 70% 29.96 in 10.0 mi SSE 8.1 mph - N/A   Clear
7:54 AM 62.1 °F 50.0 °F 65% 29.97 in 10.0 mi East 4.6 mph - N/A   Clear
8:54 AM 66.9 °F 50.0 °F 54% 29.96 in 10.0 mi ESE 5.8 mph - N/A   Clear
9:54 AM 71.1 °F 48.9 °F 45% 29.94 in 10.0 mi Calm Calm - N/A   Clear
10:54 AM 75.9 °F 48.9 °F 38% 29.93 in 10.0 mi Calm Calm - N/A   Clear
11:54 AM 79.0 °F 50.0 °F 36% 29.91 in 10.0 mi NW 10.4 mph 16.1 mph N/A   Clear
12:54 PM 80.1 °F 50.0 °F 35% 29.91 in 10.0 mi NW 8.1 mph - N/A   Clear
1:54 PM 81.0 °F 50.0 °F 34% 29.91 in 10.0 mi North 10.4 mph 18.4 mph N/A   Clear
2:54 PM 82.9 °F 51.1 °F 33% 29.90 in 10.0 mi NNE 10.4 mph 17.3 mph N/A   Clear
3:54 PM 82.9 °F 48.0 °F 29% 29.89 in 10.0 mi NW 10.4 mph 19.6 mph N/A   Clear
4:54 PM 82.9 °F 45.0 °F 26% 29.89 in 10.0 mi NNW 12.7 mph - N/A   Clear
5:54 PM 82.0 °F 44.1 °F 26% 29.89 in 10.0 mi North 9.2 mph 17.3 mph N/A   Clear
6:54 PM 79.0 °F 44.1 °F 29% 29.88 in 10.0 mi North 10.4 mph - N/A   Clear
7:54 PM 75.9 °F 42.1 °F 30% 29.89 in 10.0 mi NE 3.5 mph - N/A   Clear
8:54 PM 70.0 °F 42.1 °F 36% 29.90 in 10.0 mi Calm Calm - N/A   Clear
9:54 PM 64.0 °F 45.0 °F 50% 29.90 in 10.0 mi ESE 4.6 mph - N/A   Clear
10:54 PM 60.1 °F 46.0 °F 60% 29.90 in 10.0 mi ESE 8.1 mph - N/A   Clear
11:54 PM 57.9 °F 48.0 °F 70% 29.90 in 10.0 mi ESE 5.8 mph - N/A   Clear