Weather History for Sidney-Richland, MT

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Monday, December 31, 2012

  Actual Average Record
Temperature  
Mean Temperature 16 °F -  
Max Temperature 21 °F 20 °F 59 °F (1912)
Min Temperature 12 °F 1 °F -34 °F (1967)
Degree Days  
Heating Degree Days 48    
Moisture  
Dew Point 14 °F    
Average Humidity 86    
Maximum Humidity 93    
Minimum Humidity 73    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 3 mph (NNE)    
Max Wind Speed 8 mph    
Max Gust Speed -    
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. 31, 2012 Rise Set
Actual Time 7:45 AM MST 4:14 PM MST
Civil Twilight 7:09 AM MST 4:50 PM MST
Nautical Twilight 6:30 AM MST 5:30 PM MST
Astronomical Twilight 5:52 AM MST 6:07 PM MST
Moon 8:04 PM MST 9:13 AM MST
Length of Visible Light 9h 41m
Length of Day
8h 29m
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
12:15 AM 17.6 °F - 12.2 °F 79% 30.12 in 10.0 mi Calm Calm - N/A   Overcast
12:35 AM 17.6 °F 12.3 °F 14.0 °F 86% 30.12 in 10.0 mi East 3.5 mph - N/A   Overcast
12:55 AM 17.6 °F 12.3 °F 12.2 °F 79% 30.12 in 10.0 mi South 3.5 mph - N/A   Overcast
1:15 AM 17.6 °F - 12.2 °F 79% 30.12 in 10.0 mi Calm Calm - N/A   Overcast
1:35 AM 17.6 °F - 12.2 °F 79% 30.13 in 10.0 mi Calm Calm - N/A   Overcast
1:55 AM 17.6 °F - 12.2 °F 79% 30.13 in 10.0 mi Calm Calm - N/A   Overcast
2:15 AM 15.8 °F 5.1 °F 8.6 °F 73% 30.13 in 10.0 mi NNE 8.1 mph - N/A   Overcast
2:35 AM 14.0 °F 2.9 °F 8.6 °F 79% 30.13 in 10.0 mi NNE 8.1 mph - N/A   Overcast
2:55 AM 14.0 °F 3.9 °F 8.6 °F 79% 30.13 in 10.0 mi NNE 6.9 mph - N/A   Overcast
3:15 AM 12.2 °F 0.7 °F 8.6 °F 85% 30.13 in 10.0 mi NNE 8.1 mph - N/A   Overcast
3:55 AM 12.2 °F 2.9 °F 8.6 °F 85% 30.13 in 10.0 mi North 5.8 mph - N/A   Overcast
4:15 AM 14.0 °F 8.2 °F 8.6 °F 79% 30.13 in 10.0 mi North 3.5 mph - N/A   Overcast
4:35 AM 12.2 °F 6.1 °F 8.6 °F 85% 30.12 in 10.0 mi North 3.5 mph - N/A   Overcast
4:55 AM 14.0 °F - 8.6 °F 79% 30.11 in 10.0 mi Calm Calm - N/A   Overcast
5:35 AM 15.8 °F - 10.4 °F 79% 30.11 in 10.0 mi Calm Calm - N/A   Overcast
5:55 AM 15.8 °F 10.2 °F 10.4 °F 79% 30.11 in 10.0 mi North 3.5 mph - N/A   Overcast
6:35 AM 15.8 °F 10.2 °F 10.4 °F 79% 30.11 in 10.0 mi North 3.5 mph - N/A   Overcast
6:55 AM 14.0 °F - 10.4 °F 86% 30.10 in 8.0 mi Calm Calm - N/A   Overcast
7:15 AM 15.8 °F 8.6 °F 12.2 °F 86% 30.10 in 9.0 mi NNE 4.6 mph - N/A   Overcast
7:35 AM 14.0 °F 3.9 °F 10.4 °F 86% 30.10 in 10.0 mi NNE 6.9 mph - N/A   Overcast
8:15 AM 14.0 °F 5.1 °F 10.4 °F 86% 30.10 in 10.0 mi North 5.8 mph - N/A   Overcast
8:35 AM 15.8 °F 8.6 °F 10.4 °F 79% 30.10 in 10.0 mi North 4.6 mph - N/A   Overcast
8:55 AM 15.8 °F 8.6 °F 10.4 °F 79% 30.09 in 10.0 mi NNE 4.6 mph - N/A   Overcast
9:15 AM 15.8 °F 7.2 °F 10.4 °F 79% 30.09 in 10.0 mi NNE 5.8 mph - N/A   Overcast
9:35 AM 15.8 °F 8.6 °F 10.4 °F 79% 30.09 in 10.0 mi North 4.6 mph - N/A   Overcast
9:55 AM 15.8 °F 8.6 °F 12.2 °F 86% 30.10 in 10.0 mi North 4.6 mph - N/A   Overcast
10:15 AM 17.6 °F 10.7 °F 12.2 °F 79% 30.10 in 10.0 mi NNE 4.6 mph - N/A   Overcast
10:35 AM 19.4 °F 12.8 °F 14.0 °F 80% 30.10 in 10.0 mi NNE 4.6 mph - N/A   Overcast
10:55 AM 19.4 °F 12.8 °F 15.8 °F 86% 30.09 in 3.0 mi NNE 4.6 mph - N/A   Overcast
11:15 AM 19.4 °F - 15.8 °F 86% 30.09 in 2.0 mi Calm Calm - N/A   Overcast
11:35 AM 19.4 °F 14.3 °F 15.8 °F 86% 30.09 in 1.5 mi North 3.5 mph - N/A   Overcast
12:15 PM 19.4 °F 14.3 °F 15.8 °F 86% 30.07 in 1.2 mi North 3.5 mph - N/A   Overcast
12:35 PM 19.4 °F 12.8 °F 15.8 °F 86% 30.07 in 1.0 mi North 4.6 mph - N/A   Overcast
12:55 PM 19.4 °F - 17.6 °F 93% 30.06 in 1.0 mi Calm Calm - N/A   Overcast
1:15 PM 21.2 °F - 17.6 °F 86% 30.05 in 1.5 mi Calm Calm - N/A   Overcast
1:35 PM 21.2 °F 14.9 °F 17.6 °F 86% 30.05 in 1.8 mi East 4.6 mph - N/A   Overcast
1:55 PM 21.2 °F 16.4 °F 17.6 °F 86% 30.05 in 4.0 mi East 3.5 mph - N/A   Overcast
2:15 PM 21.2 °F 14.9 °F 17.6 °F 86% 30.05 in 3.0 mi East 4.6 mph - N/A   Overcast
2:35 PM 21.2 °F 14.9 °F 17.6 °F 86% 30.05 in 3.0 mi East 4.6 mph - N/A   Overcast
2:55 PM 21.2 °F 16.4 °F 19.4 °F 93% 30.06 in 5.0 mi East 3.5 mph - N/A   Overcast
3:35 PM 21.2 °F - 17.6 °F 86% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
3:55 PM 21.2 °F 16.4 °F 17.6 °F 86% 30.06 in 9.0 mi East 3.5 mph - N/A   Overcast
4:15 PM 21.2 °F 16.4 °F 17.6 °F 86% 30.07 in 10.0 mi East 3.5 mph - N/A   Overcast
4:35 PM 19.4 °F - 15.8 °F 86% 30.07 in 10.0 mi Calm Calm - N/A   Overcast
4:55 PM 19.4 °F - 17.6 °F 93% 30.07 in 10.0 mi Calm Calm - N/A   Overcast
6:15 PM 19.4 °F 14.3 °F 17.6 °F 93% 30.07 in 10.0 mi NW 3.5 mph - N/A   Overcast
6:35 PM 21.2 °F - 19.4 °F 93% 30.08 in 10.0 mi Calm Calm - N/A   Overcast
7:35 PM 19.4 °F - 17.6 °F 93% 30.07 in 10.0 mi Calm Calm - N/A   Overcast
7:55 PM 19.4 °F - 17.6 °F 93% 30.08 in 9.0 mi Calm Calm - N/A   Overcast
8:15 PM 19.4 °F - 17.6 °F 93% 30.08 in 9.0 mi Calm Calm - N/A   Overcast
8:35 PM 19.4 °F - 17.6 °F 93% 30.08 in 7.0 mi Calm Calm - N/A   Overcast
9:15 PM 19.4 °F - 17.6 °F 93% 30.08 in 10.0 mi Calm Calm - N/A   Overcast
9:35 PM 19.4 °F - 17.6 °F 93% 30.08 in 10.0 mi Calm Calm - N/A   Overcast
10:15 PM 19.4 °F - 17.6 °F 93% 30.09 in 10.0 mi Calm Calm - N/A   Overcast
10:35 PM 19.4 °F - 15.8 °F 86% 30.09 in 9.0 mi Calm Calm - N/A   Overcast
10:55 PM 19.4 °F - 17.6 °F 93% 30.10 in 9.0 mi Calm Calm - N/A   Overcast
11:15 PM 19.4 °F 14.3 °F 17.6 °F 93% 30.09 in 8.0 mi SSW 3.5 mph - N/A   Overcast
11:35 PM 19.4 °F 12.8 °F 17.6 °F 93% 30.09 in 8.0 mi SSW 4.6 mph - N/A   Overcast
11:55 PM 19.4 °F - 17.6 °F 93% 30.09 in 9.0 mi Calm Calm - N/A   Overcast