Weather History for Billings, MT

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Tuesday, September 20, 2011

  Actual Average Record
Temperature  
Mean Temperature 53 °F 58 °F  
Max Temperature 66 °F 71 °F 91 °F (1938)
Min Temperature 39 °F 46 °F 26 °F (1983)
Degree Days  
Heating Degree Days 12 8  
Month to date heating degree days 67 95  
Since 1 July heating degree days 67 132  
Cooling Degree Days 0 1  
Month to date cooling degree days 39 44  
Year to date cooling degree days 672 626  
Growing Degree Days 4 (Base 50)    
Moisture  
Dew Point 29 °F    
Average Humidity 44    
Maximum Humidity 67    
Minimum Humidity 20    
Precipitation  
Precipitation 0.00 in 0.04 in 0.50 in (1970)
Month to date precipitation 0.12 0.83  
Year to date precipitation 17.21 10.88  
Snow  
Snow 0.00 in 0.00 in 1.40 in (1995)
Month to date snowfall 0.0 0.4  
Since 1 July snowfall T 0.4  
Since 1 September snowfall 0.0 0.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.22 in    
Wind  
Wind Speed 10 mph (NW)    
Max Wind Speed 17 mph    
Max Gust Speed 26 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 20, 2011 Rise Set
Actual Time 6:58 AM MDT 7:16 PM MDT
Civil Twilight 6:28 AM MDT 7:45 PM MDT
Nautical Twilight 5:53 AM MDT 8:20 PM MDT
Astronomical Twilight 5:17 AM MDT 8:56 PM MDT
Moon No Moon Rise 3:00 PM MDT (9/20)
Length of Visible Light 13h 17m
Length of Day
12h 17m
Waning Gibbous, 48% of the Moon is Illuminated
Sep 20
Waning Gibbous
Sep 27
New
Oct 3
First Quarter
Oct 11
Full
Oct 19
Last Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 46.9 °F - 30.9 °F 54% 30.17 in 10.0 mi NW 12.7 mph - N/A   Clear
1:53 AM 44.1 °F 37.7 °F 30.0 °F 58% 30.17 in 10.0 mi WNW 12.7 mph - N/A   Clear
2:53 AM 44.1 °F 38.1 °F 30.0 °F 58% 30.17 in 10.0 mi NW 11.5 mph - N/A   Clear
3:53 AM 42.8 °F 38.0 °F 30.2 °F 61% 30.22 in 10.0 mi NNW 8.1 mph - N/A   Clear
4:53 AM 42.8 °F 37.5 °F 30.2 °F 61% 30.22 in 10.0 mi WSW 9.2 mph - N/A   Clear
5:53 AM 42.1 °F 35.7 °F 30.9 °F 65% 30.25 in 10.0 mi SW 11.5 mph - N/A   Clear
6:53 AM 43.0 °F 36.4 °F 30.9 °F 62% 30.25 in 10.0 mi SW 12.7 mph - N/A   Partly Cloudy
7:53 AM 42.8 °F 35.1 °F 32.0 °F 66% 30.25 in 10.0 mi WSW 16.1 mph - N/A   Scattered Clouds
8:53 AM 46.0 °F 39.9 °F 33.1 °F 61% 30.27 in 10.0 mi SW 13.8 mph - N/A   Partly Cloudy
9:53 AM 50.0 °F - 34.0 °F 54% 30.27 in 10.0 mi SW 12.7 mph - N/A   Partly Cloudy
10:53 AM 57.0 °F - 35.1 °F 44% 30.25 in 10.0 mi SSW 11.5 mph - N/A   Partly Cloudy
11:53 AM 62.1 °F - 28.0 °F 28% 30.23 in 10.0 mi NNE 10.4 mph - N/A   Scattered Clouds
12:53 PM 63.0 °F - 27.0 °F 26% 30.22 in 10.0 mi NW 15.0 mph 20.7 mph N/A   Scattered Clouds
1:53 PM 62.1 °F - 28.9 °F 29% 30.22 in 10.0 mi North 13.8 mph - N/A   Scattered Clouds
2:53 PM 64.9 °F - 28.0 °F 25% 30.20 in 10.0 mi NNW 15.0 mph 26.5 mph N/A   Scattered Clouds
3:53 PM 66.0 °F - 25.0 °F 21% 30.19 in 10.0 mi NW 15.0 mph 19.6 mph N/A   Scattered Clouds
4:53 PM 64.9 °F - 24.1 °F 21% 30.19 in 10.0 mi NNW 8.1 mph 18.4 mph N/A   Scattered Clouds
5:53 PM 64.0 °F - 25.0 °F 23% 30.20 in 10.0 mi North 8.1 mph - N/A   Partly Cloudy
6:53 PM 60.8 °F - 26.6 °F 27% 30.21 in 10.0 mi NE 6.9 mph - N/A   Clear
7:53 PM 55.0 °F - 28.9 °F 37% 30.22 in 10.0 mi ENE 6.9 mph - N/A   Clear
8:53 PM 52.0 °F - 28.9 °F 41% 30.24 in 10.0 mi ENE 6.9 mph - N/A   Clear
9:53 PM 52.0 °F - 28.0 °F 40% 30.24 in 10.0 mi NNE 4.6 mph - N/A   Clear
10:53 PM 50.0 °F - 28.0 °F 43% 30.23 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 48.9 °F - 28.0 °F 44% 30.22 in 10.0 mi Calm Calm - N/A   Clear