Weather History for Sidney-Richland, MT

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Tuesday, December 18, 2012

  Actual Average Record
Temperature  
Mean Temperature 22 °F -  
Max Temperature 33 °F 28 °F 62 °F (1979)
Min Temperature 12 °F 6 °F -27 °F (1955)
Degree Days  
Heating Degree Days 42    
Moisture  
Dew Point 17 °F    
Average Humidity 82    
Maximum Humidity 100    
Minimum Humidity 69    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.56 in    
Wind  
Wind Speed 9 mph (West)    
Max Wind Speed 21 mph    
Max Gust Speed 28 mph    
Visibility 8 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 18, 2012 Rise Set
Actual Time 7:41 AM MST 4:06 PM MST
Civil Twilight 7:05 AM MST 4:42 PM MST
Nautical Twilight 6:25 AM MST 5:21 PM MST
Astronomical Twilight 5:47 AM MST 5:59 PM MST
Moon 10:58 AM MST (12/18) 11:00 PM MST (12/18)
Length of Visible Light 9h 37m
Length of Day
8h 25m
Waxing Crescent, 35% of the Moon is Illuminated
Dec 18
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 24.8 °F 19.1 °F 19.4 °F 80% 29.43 in 10.0 mi East 4.6 mph - N/A   Overcast
12:35 AM 23.0 °F - 19.4 °F 86% 29.45 in 1.5 mi Calm Calm - N/A   Overcast
12:55 AM 24.8 °F - 21.2 °F 86% 29.45 in 0.2 mi Calm Calm - N/A   Overcast
1:15 AM 24.8 °F 20.5 °F 23.0 °F 93% 29.44 in 0.2 mi East 3.5 mph - N/A   Overcast
1:35 AM 24.8 °F - 23.0 °F 93% 29.44 in 4.0 mi Calm Calm - N/A   Overcast
1:55 AM 21.2 °F - 19.4 °F 93% 29.45 in 10.0 mi Calm Calm - N/A   Overcast
2:35 AM 17.6 °F - 15.8 °F 93% 29.47 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:55 AM 17.6 °F - 15.8 °F 93% 29.46 in 10.0 mi Calm Calm - N/A   Partly Cloudy
3:15 AM 17.6 °F - 15.8 °F 93% 29.46 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:55 AM 14.0 °F 8.2 °F 10.4 °F 86% 29.46 in 10.0 mi South 3.5 mph - N/A   Scattered Clouds
4:15 AM 15.8 °F - 14.0 °F 93% 29.46 in 5.0 mi Calm Calm - N/A   Partly Cloudy
4:35 AM 17.6 °F 10.7 °F 15.8 °F 93% 29.46 in 0.2 mi SSW 4.6 mph - N/A   Overcast
4:55 AM 15.8 °F 7.2 °F 15.8 °F 100% 29.47 in 0.2 mi SSW 5.8 mph - N/A   Overcast
5:15 AM 17.6 °F 9.3 °F 15.8 °F 93% 29.48 in 0.2 mi SSW 5.8 mph - N/A   Overcast
5:35 AM 17.6 °F 10.7 °F 17.6 °F 100% 29.48 in 5.0 mi SW 4.6 mph - N/A   Partly Cloudy
5:55 AM 15.8 °F - 14.0 °F 93% 29.48 in 5.0 mi Calm Calm - N/A   Clear
6:15 AM 14.0 °F 5.1 °F 10.4 °F 86% 29.48 in 3.0 mi South 5.8 mph - N/A   Clear
6:35 AM 15.8 °F 10.2 °F 12.2 °F 86% 29.48 in 3.0 mi SSW 3.5 mph - N/A   Clear
6:55 AM 15.8 °F - 14.0 °F 93% 29.48 in 0.2 mi Calm Calm - N/A   Unknown
7:15 AM 26.6 °F 16.8 °F - N/A% 29.47 in 10.0 mi West 10.4 mph - N/A   Clear
7:35 AM 28.4 °F 17.5 °F 24.8 °F 86% 29.48 in 10.0 mi West 13.8 mph - N/A   Clear
7:55 AM 28.4 °F 16.6 °F 21.2 °F 74% 29.49 in 10.0 mi West 16.1 mph - N/A   Clear
8:15 AM 28.4 °F 15.8 °F 19.4 °F 69% 29.49 in 10.0 mi West 18.4 mph 23.0 mph N/A   Clear
8:35 AM 28.4 °F 16.2 °F 19.4 °F 69% 29.49 in 10.0 mi West 17.3 mph 23.0 mph N/A   Clear
8:55 AM 28.4 °F 16.2 °F 19.4 °F 69% 29.50 in 10.0 mi West 17.3 mph 23.0 mph N/A   Clear
9:15 AM 28.4 °F 16.2 °F 19.4 °F 69% 29.50 in 10.0 mi West 17.3 mph - N/A   Clear
9:35 AM 30.2 °F 18.5 °F 21.2 °F 69% 29.51 in 10.0 mi West 17.3 mph - N/A   Clear
9:55 AM 32.0 °F 21.2 °F 24.8 °F 75% 29.51 in 10.0 mi West 16.1 mph 21.9 mph N/A   Clear
10:15 AM 32.0 °F 21.2 °F 24.8 °F 75% 29.52 in 10.0 mi West 16.1 mph - N/A   Mostly Cloudy
10:35 AM 33.8 °F 22.8 °F 26.6 °F 75% 29.52 in 10.0 mi West 18.4 mph 21.9 mph N/A   Overcast
10:55 AM 33.8 °F 23.9 °F 26.6 °F 75% 29.52 in 10.0 mi WSW 15.0 mph - N/A   Overcast
11:15 AM 33.8 °F 22.8 °F 26.6 °F 75% 29.52 in 10.0 mi West 18.4 mph - N/A   Overcast
11:35 AM 33.8 °F 23.9 °F 26.6 °F 75% 29.52 in 10.0 mi WSW 15.0 mph - N/A   Overcast
11:55 AM 33.8 °F 23.9 °F 28.4 °F 81% 29.52 in 10.0 mi WSW 15.0 mph 24.2 mph N/A   Overcast
12:15 PM 32.0 °F 22.1 °F 28.4 °F 87% 29.52 in 5.0 mi WSW 13.8 mph - N/A   Mostly Cloudy
12:35 PM 32.0 °F 20.5 °F 28.4 °F 87% 29.52 in 8.0 mi West 18.4 mph 24.2 mph N/A   Overcast
12:55 PM 30.2 °F 17.8 °F 26.6 °F 86% 29.52 in 10.0 mi West 19.6 mph 23.0 mph N/A   Overcast
1:15 PM 30.2 °F 18.9 °F 24.8 °F 80% 29.52 in 10.0 mi West 16.1 mph 23.0 mph N/A   Overcast
1:35 PM 30.2 °F 20.2 °F 24.8 °F 80% 29.53 in 10.0 mi West 12.7 mph 25.3 mph N/A   Overcast
1:55 PM 28.4 °F 15.8 °F 23.0 °F 80% 29.54 in 9.0 mi West 18.4 mph 21.9 mph N/A   Overcast
2:15 PM 26.6 °F 15.2 °F 23.0 °F 86% 29.56 in 2.5 mi West 13.8 mph 21.9 mph N/A   Overcast
2:35 PM 26.6 °F 13.8 °F 23.0 °F 86% 29.57 in 1.8 mi West 17.3 mph 23.0 mph N/A   Overcast
2:55 PM 26.6 °F 14.3 °F 21.2 °F 80% 29.58 in 7.0 mi West 16.1 mph 27.6 mph N/A   Overcast
3:15 PM 26.6 °F 12.7 °F 19.4 °F 74% 29.59 in 7.0 mi West 20.7 mph - N/A   Overcast
3:35 PM 24.8 °F 11.1 °F 19.4 °F 80% 29.59 in 5.0 mi West 18.4 mph - N/A   Mostly Cloudy
3:55 PM 24.8 °F 14.6 °F 21.2 °F 86% 29.61 in 4.0 mi WNW 10.4 mph 18.4 mph N/A   Mostly Cloudy
4:15 PM 24.8 °F 12.4 °F 19.4 °F 80% 29.61 in 9.0 mi WNW 15.0 mph 19.6 mph N/A   Overcast
4:35 PM 23.0 °F 8.7 °F 17.6 °F 80% 29.62 in 9.0 mi WNW 18.4 mph 23.0 mph N/A   Overcast
4:55 PM 21.2 °F 9.5 °F 17.6 °F 86% 29.63 in 7.0 mi West 11.5 mph 16.1 mph N/A   Mostly Cloudy
5:15 PM 21.2 °F 5.6 °F 15.8 °F 80% 29.63 in 10.0 mi West 20.7 mph 25.3 mph N/A   Scattered Clouds
5:35 PM 21.2 °F 7.3 °F 14.0 °F 74% 29.65 in 10.0 mi West 16.1 mph - N/A   Partly Cloudy
5:55 PM 21.2 °F 7.3 °F 14.0 °F 74% 29.65 in 10.0 mi West 16.1 mph 20.7 mph N/A   Mostly Cloudy
6:35 PM 21.2 °F 7.3 °F 14.0 °F 74% 29.66 in 10.0 mi West 16.1 mph 23.0 mph N/A   Overcast
6:55 PM 21.2 °F 6.4 °F 14.0 °F 74% 29.67 in 10.0 mi West 18.4 mph 21.9 mph N/A   Mostly Cloudy
7:15 PM 19.4 °F 4.5 °F 12.2 °F 74% 29.67 in 10.0 mi West 17.3 mph 23.0 mph N/A   Partly Cloudy
7:35 PM 17.6 °F 6.4 °F 10.4 °F 73% 29.69 in 10.0 mi WNW 9.2 mph - N/A   Clear
7:55 PM 15.8 °F 1.4 °F 10.4 °F 79% 29.69 in 10.0 mi WNW 13.8 mph - N/A   Partly Cloudy
8:15 PM 15.8 °F -0.2 °F 8.6 °F 73% 29.69 in 10.0 mi West 17.3 mph - N/A   Clear
8:35 PM 15.8 °F 1.4 °F 8.6 °F 73% 29.70 in 10.0 mi West 13.8 mph - N/A   Clear
9:15 PM 14.0 °F -2.5 °F 6.8 °F 73% 29.70 in 10.0 mi West 17.3 mph 21.9 mph N/A   Clear
9:35 PM 14.0 °F -2.0 °F 8.6 °F 79% 29.72 in 10.0 mi West 16.1 mph 21.9 mph N/A   Clear
9:55 PM 12.2 °F -1.8 °F 6.8 °F 79% 29.72 in 10.0 mi West 11.5 mph - N/A   Clear
10:15 PM 12.2 °F -1.0 °F 6.8 °F 79% 29.74 in 10.0 mi WSW 10.4 mph - N/A   Clear
10:35 PM 12.2 °F -1.8 °F 8.6 °F 85% 29.75 in 10.0 mi West 11.5 mph - N/A   Scattered Clouds
10:55 PM 12.2 °F -4.8 °F 8.6 °F 85% 29.74 in 10.0 mi West 17.3 mph - N/A   Mostly Cloudy
11:15 PM 12.2 °F -4.8 °F 6.8 °F 79% 29.74 in 10.0 mi West 17.3 mph - N/A   Overcast
11:35 PM 12.2 °F -4.8 °F 6.8 °F 79% 29.75 in 10.0 mi West 17.3 mph - N/A   Scattered Clouds
11:55 PM 12.2 °F -4.8 °F 6.8 °F 79% 29.75 in 10.0 mi WNW 17.3 mph 23.0 mph N/A   Mostly Cloudy