Weather History for Lewistown, MT

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Friday, December 10, 2010

  Actual Average Record
Temperature  
Mean Temperature 23 °F 24 °F  
Max Temperature 38 °F 34 °F 64 °F (1990)
Min Temperature 7 °F 13 °F -22 °F (1961)
Degree Days  
Heating Degree Days 42 41  
Month to date heating degree days 401 403  
Since 1 July heating degree days 2616 2531  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 125 210  
Moisture  
Dew Point 12 °F    
Average Humidity 80    
Maximum Humidity 100    
Minimum Humidity 59    
Precipitation  
Precipitation T in 0.02 in 0.77 in (1929)
Month to date precipitation 0.15 0.21  
Year to date precipitation 21.43 16.40  
Snow  
Snow 0.00 in - - ()
Snow Depth 2.00 in    
Sea Level Pressure  
Sea Level Pressure 29.87 in    
Wind  
Wind Speed 13 mph (WNW)    
Max Wind Speed 32 mph    
Max Gust Speed 40 mph    
Visibility 6 miles    
Events Fog , Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 10, 2010 Rise Set
Actual Time 7:52 AM MST 4:28 PM MST
Civil Twilight 7:17 AM MST 5:03 PM MST
Nautical Twilight 6:38 AM MST 5:42 PM MST
Astronomical Twilight 6:01 AM MST 6:19 PM MST
Moon 11:09 AM MST (12/10) 9:51 PM MST (12/10)
Length of Visible Light 9h 46m
Length of Day
8h 35m
Waxing Crescent, 25% of the Moon is Illuminated
Dec 10
Waxing Crescent
Dec 13
First Quarter
Dec 21
Full
Dec 27
Last Quarter
Jan 4
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 20.8 °F 21.0 °F 64% 29.73 in 10.0 mi SW 17.3 mph - N/A   Clear
1:54 AM 32.0 °F - 23.0 °F 69% 29.70 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:54 AM 36.0 °F 29.6 °F 25.0 °F 64% 29.62 in 10.0 mi WSW 8.1 mph - N/A   Overcast
4:54 AM 37.0 °F 26.4 °F 25.0 °F 62% 29.61 in 10.0 mi West 20.7 mph - N/A   Mostly Cloudy
5:54 AM 36.0 °F 24.7 °F 26.1 °F 67% 29.61 in 10.0 mi WSW 21.9 mph - N/A   Mostly Cloudy
6:54 AM 37.0 °F 27.0 °F 26.1 °F 65% 29.58 in 10.0 mi SW 18.4 mph - N/A   Overcast
7:54 AM 37.0 °F 25.4 °F 25.0 °F 62% 29.60 in 10.0 mi SW 25.3 mph - N/A   Partly Cloudy
8:54 AM 35.1 °F 25.2 °F 26.1 °F 70% 29.63 in 10.0 mi WSW 16.1 mph - N/A   Overcast
9:47 AM 23.0 °F 6.0 °F 21.2 °F 93% 29.64 in 3.0 mi WNW 27.6 mph 35.7 mph 0.00 in   Overcast
9:50 AM 21.2 °F 3.9 °F 19.4 °F 93% 29.65 in 2.5 mi WNW 26.5 mph 35.7 mph 0.00 in   Overcast
9:54 AM 19.9 °F 1.8 °F 19.0 °F 96% 29.75 in 1.8 mi WNW 27.6 mph 38.0 mph 0.00 in   Overcast
10:08 AM 17.6 °F 0.9 °F 15.8 °F 93% 29.67 in 2.5 mi WNW 20.7 mph 34.5 mph N/A   Overcast
10:15 AM 15.8 °F -2.3 °F 14.0 °F 93% 29.68 in 4.0 mi WNW 23.0 mph 31.1 mph N/A   Overcast
10:28 AM 15.8 °F -1.9 °F 12.2 °F 86% 29.70 in 9.0 mi NW 21.9 mph 32.2 mph N/A   Overcast
10:45 AM 15.8 °F -0.6 °F 10.4 °F 79% 29.74 in 7.0 mi NNW 18.4 mph 27.6 mph N/A   Overcast
10:54 AM 14.0 °F -3.4 °F 10.0 °F 84% 29.86 in 5.0 mi NNW 19.6 mph 27.6 mph 0.00 in Snow Light Snow
11:02 AM 14.0 °F -1.4 °F 10.4 °F 86% 29.75 in 5.0 mi NW 15.0 mph 24.2 mph 0.00 in Snow Light Snow
11:11 AM 14.0 °F -2.5 °F 10.4 °F 86% 29.74 in 3.0 mi NW 17.3 mph 24.2 mph 0.00 in Snow Light Snow
11:16 AM 14.0 °F -3.9 °F 10.4 °F 86% 29.75 in 1.5 mi NW 20.7 mph 28.8 mph 0.00 in Snow Light Snow
11:25 AM 12.2 °F -5.8 °F 8.6 °F 85% 29.76 in 0.5 mi NW 19.6 mph 27.6 mph 0.00 in Fog , Snow Snow
11:46 AM 12.2 °F -3.7 °F 8.6 °F 85% 29.78 in 0.5 mi WNW 15.0 mph - 0.00 in Fog , Snow Snow
11:54 AM 12.9 °F -4.4 °F 9.0 °F 84% 29.92 in 0.5 mi WNW 18.4 mph 24.2 mph 0.00 in Fog , Snow Snow
12:54 PM 12.0 °F -5.1 °F 9.0 °F 88% 29.95 in 0.5 mi NW 17.3 mph 27.6 mph 0.00 in Fog , Snow Snow
1:54 PM 10.9 °F -0.8 °F 7.0 °F 84% 30.02 in 2.0 mi WNW 8.1 mph 21.9 mph 0.00 in Snow Light Snow
2:04 PM 10.4 °F -0.4 °F 6.8 °F 85% 29.90 in 3.0 mi WNW 6.9 mph - 0.00 in Snow Light Snow
2:06 PM 10.4 °F -0.4 °F 6.8 °F 85% 29.90 in 2.5 mi NW 6.9 mph - 0.00 in Snow Light Snow
2:36 PM 10.4 °F -6.6 °F 6.8 °F 85% 29.91 in 3.0 mi WNW 16.1 mph - 0.00 in Snow Light Snow
2:54 PM 10.9 °F -4.7 °F 6.1 °F 81% 30.05 in 4.0 mi NW 13.8 mph 21.9 mph 0.00 in Snow Light Snow
3:49 PM 8.6 °F -9.5 °F 6.8 °F 92% 29.95 in 2.5 mi WNW 17.3 mph - 0.00 in Snow Light Snow
3:54 PM 9.0 °F -10.0 °F 5.0 °F 84% 30.09 in 3.0 mi WNW 19.6 mph - 0.00 in Snow Light Snow
4:54 PM 9.0 °F -7.3 °F 5.0 °F 84% 30.13 in 10.0 mi West 13.8 mph - 0.00 in   Overcast
5:42 PM 8.6 °F -4.7 °F 6.8 °F 92% 30.01 in 6.0 mi West 9.2 mph - N/A   Overcast
5:54 PM 8.1 °F -4.3 °F 5.0 °F 87% 30.16 in 7.0 mi West 8.1 mph - 0.00 in Snow Light Snow
6:54 PM 7.0 °F -5.7 °F 3.9 °F 87% 30.18 in 10.0 mi West 8.1 mph - 0.00 in   Overcast
7:33 PM 6.8 °F -3.5 °F 3.2 °F 85% 30.04 in 10.0 mi West 5.8 mph - N/A   Mostly Cloudy
7:54 PM 7.0 °F -3.3 °F 3.9 °F 87% 30.19 in 9.0 mi West 5.8 mph - N/A   Mostly Cloudy
8:54 PM 7.0 °F -1.7 °F 3.9 °F 87% 30.20 in 9.0 mi WSW 4.6 mph - 0.00 in   Mostly Cloudy
9:54 PM 8.1 °F 1.4 °F 3.9 °F 83% 30.25 in 10.0 mi West 3.5 mph - N/A   Overcast
10:54 PM 8.1 °F - 3.9 °F 83% 30.28 in 9.0 mi Calm Calm - 0.00 in Snow Light Snow
11:54 PM 8.1 °F 1.4 °F 3.9 °F 83% 30.28 in 10.0 mi SE 3.5 mph - 0.00 in   Mostly Cloudy