Weather History for Lewistown, MT

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Friday, October 21, 2011

  Actual Average Record
Temperature  
Mean Temperature 47 °F 42 °F  
Max Temperature 57 °F 55 °F 81 °F (1927)
Min Temperature 36 °F 29 °F 5 °F (1930)
Degree Days  
Heating Degree Days 18 23  
Month to date heating degree days 329 412  
Since 1 July heating degree days 595 889  
Cooling Degree Days 0 0  
Month to date cooling degree days 5 0  
Year to date cooling degree days 215 210  
Moisture  
Dew Point 36 °F    
Average Humidity 70    
Maximum Humidity 92    
Minimum Humidity 47    
Precipitation  
Precipitation T in 0.04 in 3.80 in (1908)
Month to date precipitation 2.13 0.84  
Year to date precipitation 20.82 15.19  
Snow  
Snow 0.00 in - - ()
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 6 mph (SW)    
Max Wind Speed 16 mph    
Max Gust Speed 20 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Astronomy

Oct. 21, 2011 Rise Set
Actual Time 7:44 AM MDT 6:19 PM MDT
Civil Twilight 7:13 AM MDT 6:50 PM MDT
Nautical Twilight 6:37 AM MDT 7:26 PM MDT
Astronomical Twilight 6:02 AM MDT 8:01 PM MDT
Moon 1:14 AM MDT (10/21) 3:26 PM MDT (10/21)
Length of Visible Light 11h 37m
Length of Day
10h 35m
Waning Crescent, 33% of the Moon is Illuminated
Oct 21
Waning Crescent
Oct 26
New
Nov 2
First Quarter
Nov 10
Full
Nov 18
Last Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 46.9 °F - 35.1 °F 63% 30.02 in 10.0 mi SW 3.5 mph - N/A   Mostly Cloudy
1:54 AM 46.0 °F 43.9 °F 36.0 °F 68% 30.03 in 10.0 mi South 4.6 mph - N/A   Overcast
2:54 AM 44.1 °F - 36.0 °F 73% 30.06 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:54 AM 43.0 °F 41.3 °F 36.0 °F 76% 30.06 in 10.0 mi SE 3.5 mph - N/A   Overcast
4:54 AM 45.0 °F - 36.0 °F 71% 30.06 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:54 AM 39.0 °F 34.8 °F 34.0 °F 82% 30.12 in 10.0 mi SSW 5.8 mph - N/A   Clear
7:54 AM 36.0 °F 32.1 °F 34.0 °F 93% 30.14 in 10.0 mi ESE 4.6 mph - N/A   Clear
9:54 AM 45.0 °F 43.5 °F 37.0 °F 74% 30.14 in 10.0 mi ESE 3.5 mph - N/A   Overcast
10:54 AM 50.0 °F - 39.0 °F 66% 30.13 in 10.0 mi South 4.6 mph - 0.00 in Rain Light Rain
11:54 AM 52.0 °F - 37.0 °F 57% 30.13 in 10.0 mi SW 9.2 mph - 0.00 in   Overcast
12:54 PM 54.0 °F - 37.0 °F 53% 30.11 in 10.0 mi WSW 9.2 mph - N/A   Mostly Cloudy
1:54 PM 55.0 °F - 37.0 °F 51% 30.10 in 10.0 mi SSW 6.9 mph - N/A   Scattered Clouds
2:54 PM 55.9 °F - 37.9 °F 51% 30.09 in 10.0 mi WSW 6.9 mph - N/A   Mostly Cloudy
3:54 PM 55.0 °F - 36.0 °F 49% 30.09 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
4:54 PM 55.9 °F - 36.0 °F 47% 30.07 in 10.0 mi West 6.9 mph - N/A   Clear
5:54 PM 53.1 °F - 37.0 °F 55% 30.09 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:54 PM 48.9 °F - 36.0 °F 61% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:54 PM 44.1 °F 40.1 °F 34.0 °F 68% 30.14 in 10.0 mi West 6.9 mph - N/A   Clear
8:54 PM 41.0 °F 35.2 °F 34.0 °F 76% 30.12 in 10.0 mi SSW 9.2 mph - N/A   Clear
9:54 PM 43.0 °F 36.8 °F 34.0 °F 71% 30.09 in 10.0 mi SW 11.5 mph - N/A   Clear
10:54 PM 45.0 °F 38.5 °F 35.1 °F 68% 30.06 in 10.0 mi SW 13.8 mph - N/A   Clear
11:54 PM 46.0 °F 41.0 °F 35.1 °F 66% 30.04 in 10.0 mi SSW 10.4 mph - N/A   Clear