Weather History for Dillon, MT

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Monday, December 31, 2012

  Actual Average Record
Temperature  
Mean Temperature 10 °F 21 °F  
Max Temperature 22 °F 31 °F 50 °F (1980)
Min Temperature -3 °F 12 °F -25 °F (1978)
Degree Days  
Heating Degree Days 55    
Month to date heating degree days 1285  
Since 1 July heating degree days 3058  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 242  
Moisture  
Dew Point 4 °F    
Average Humidity 70    
Maximum Humidity 87    
Minimum Humidity 52    
Precipitation  
Precipitation 0.00 in 0.01 in 0.06 in (1959)
Month to date precipitation 0.07 0.27  
Year to date precipitation 6.19 10.57  
Snow  
Snow 0.00 in - - ()
Snow Depth T in    
Sea Level Pressure  
Sea Level Pressure 30.29 in    
Wind  
Wind Speed 3 mph (SSW)    
Max Wind Speed 9 mph    
Max Gust Speed 10 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 31, 2012 Rise Set
Actual Time 8:09 AM MST 4:57 PM MST
Civil Twilight 7:35 AM MST 5:31 PM MST
Nautical Twilight 6:58 AM MST 6:09 PM MST
Astronomical Twilight 6:22 AM MST 6:44 PM MST
Moon 8:43 PM MST (12/31) 9:43 AM MST (12/31)
Length of Visible Light 9h 56m
Length of Day
8h 48m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 31
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 5.0 °F -6.9 °F -0.0 °F 80% 30.25 in 10.0 mi SW 6.9 mph - N/A   Partly Cloudy
1:53 AM 8.1 °F -5.3 °F 1.9 °F 76% 30.22 in 10.0 mi SSW 9.2 mph - N/A   Overcast
2:49 AM 8.6 °F -3.7 °F 3.2 °F 79% 30.02 in 10.0 mi SSW 8.1 mph - N/A   Overcast
2:53 AM 10.0 °F -0.9 °F 3.0 °F 73% 30.23 in 10.0 mi SSW 6.9 mph - N/A   Overcast
3:33 AM 6.8 °F -0.1 °F 1.4 °F 79% 30.04 in 10.0 mi SW 3.5 mph - N/A   Scattered Clouds
3:53 AM 7.0 °F -3.3 °F 1.9 °F 80% 30.26 in 10.0 mi SSW 5.8 mph - N/A   Clear
4:53 AM 6.1 °F -4.3 °F 1.0 °F 80% 30.32 in 10.0 mi SSW 5.8 mph - N/A   Partly Cloudy
5:53 AM 3.9 °F -8.2 °F -0.9 °F 80% 30.35 in 10.0 mi SSE 6.9 mph - N/A   Clear
6:53 AM 3.0 °F -9.3 °F -2.0 °F 80% 30.33 in 10.0 mi South 6.9 mph - N/A   Clear
7:53 AM 3.0 °F - -2.0 °F 80% 30.36 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 1.0 °F -10.3 °F -2.9 °F 83% 30.37 in 10.0 mi SSW 5.8 mph - N/A   Clear
9:53 AM 8.1 °F - 1.0 °F 73% 30.35 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 10.9 °F - 3.0 °F 70% 30.35 in 10.0 mi Calm Calm - N/A   Clear
11:53 AM 15.1 °F - 5.0 °F 64% 30.32 in 10.0 mi Calm Calm - N/A   Clear
12:53 PM 19.0 °F - 6.1 °F 57% 30.29 in 10.0 mi Calm Calm - N/A   Clear
1:53 PM 21.9 °F - 7.0 °F 53% 30.26 in 10.0 mi Calm Calm - N/A   Clear
2:53 PM 21.9 °F - 7.0 °F 53% 30.26 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:53 PM 21.0 °F - 7.0 °F 55% 30.27 in 10.0 mi Calm Calm - N/A   Overcast
4:53 PM 19.9 °F - 9.0 °F 62% 30.30 in 10.0 mi Calm Calm - N/A   Overcast
6:53 PM 19.0 °F - 8.1 °F 62% 30.32 in 10.0 mi Calm Calm - N/A   Overcast
7:53 PM 17.1 °F 11.7 °F 10.0 °F 74% 30.34 in 10.0 mi East 3.5 mph - N/A   Overcast
8:53 PM 18.0 °F - 9.0 °F 68% 30.35 in 10.0 mi Calm Calm - N/A   Overcast
9:53 PM 18.0 °F - 10.0 °F 71% 30.35 in 10.0 mi Calm Calm - N/A   Overcast
10:53 PM 18.0 °F 11.1 °F 10.0 °F 71% 30.36 in 10.0 mi South 4.6 mph - N/A   Overcast
11:53 PM 19.0 °F 10.0 °F 9.0 °F 65% 30.34 in 10.0 mi South 6.9 mph - N/A   Overcast