Weather History for Great Falls, MT

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Week of December 9, 2012 through December 15, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 43 °F 38 °F 30 °F
Mean Temperature 34 °F 28 °F 11 °F
Min Temperature 27 °F 18 °F -8 °F
Degree Days  
Heating Degree Days (base 65) 54 37 31 258
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 29 °F 16 °F -12 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth 3.0 in 2.0 in 1.0 in -
Wind  
Wind 33 mph 14 mph 0 mph
Gust Wind 43 mph 30 mph 22 mph
Sea Level Pressure  
Sea Level Pressure 30.50 in 29.86 in 29.49 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Dec. 10, 2012 Rise Set
Actual Time 8:02 AM MST 4:34 PM MST
Civil Twilight 7:27 AM MST 5:10 PM MST
Nautical Twilight 6:48 AM MST 5:49 PM MST
Astronomical Twilight 6:10 AM MST 6:26 PM MST
Moon 4:42 AM MST (12/10) 2:32 PM MST (12/10)
Length of Visible Light 9h 43m
Length of Day
8h 31m
Waning Crescent, 10% of the Moon is Illuminated
Dec 10
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
9 30 11 -8 16 -1 -12 87 72 57 30.50 30.26 29.99 10 6 0 32 15 37 0.00 Fog
10 35 29 23 21 17 13 68 62 56 30.05 30.00 29.84 10 10 10 26 14 32 0.00  
11 42 34 26 27 24 17 75 62 49 29.91 29.63 29.51 10 10 10 33 22 43 0.00  
12 40 34 27 29 26 23 84 72 59 29.91 29.71 29.54 10 8 1 20 6 24 T Snow
13 38 31 23 25 18 13 84 64 44 29.93 29.85 29.66 10 10 6 29 16 33 0.00  
14 43 32 20 21 17 12 74 57 39 29.86 29.73 29.49 20 10 10 25 13 33 0.00  
15 36 26 16 18 14 10 80 62 44 29.94 29.81 29.62 10 10 10 23 12 28 0.00