Great Falls, MT

2:37 PM MDT on July 27, 2016 (GMT -0600)
Great Falls International

Weather History for KGTF - September, 2011

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Week of September 11, 2011 through September 17, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 91 °F 76 °F 67 °F
Mean Temperature 69 °F 61 °F 54 °F
Min Temperature 50 °F 45 °F 40 °F
Degree Days  
Heating Degree Days (base 65) 11 5 0 35
Cooling Degree Days (base 65) 4 1 0 5
Growing Degree Days (base 50) 20 10 2 71
Dew Point  
Dew Point 51 °F 36 °F 23 °F
Precipitation  
Precipitation 0.01 in 0.00 in 0.00 in 0.01 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 33 mph 11 mph 0 mph
Gust Wind 44 mph 24 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.28 in 29.98 in 29.67 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Sep. 13, 2011 Rise Set
Actual Time 6:59 AM MDT 7:42 PM MDT
Civil Twilight 6:28 AM MDT 8:13 PM MDT
Nautical Twilight 5:51 AM MDT 8:49 PM MDT
Astronomical Twilight 5:13 AM MDT 9:28 PM MDT
Moon 7:47 PM MDT (9/13) 8:27 AM MDT (9/13)
Length of Visible Light 13h 44m
Length of Day
12h 42m
Full, 98% of the Moon is Illuminated
Sep 13
Full
Sep 20
Last Quarter
Sep 27
New
Oct 3
First Quarter
Oct 11
Full

Daily Weather History & Observations

2011 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
11 91 69 47 46 31 24 57 33 9 30.09 29.93 29.81 10 10 6 33 11 44 0.00  
12 79 60 41 44 41 38 83 56 28 30.19 30.09 29.95 10 10 10 22 9 25 0.00  
13 67 54 40 41 37 32 92 65 37 30.28 30.24 30.20 10 10 10 21 10 25 0.00  
14 69 59 48 40 37 34 66 49 32 30.26 30.15 29.96 10 10 10 20 9 24 0.00  
15 84 66 48 42 39 35 71 45 18 29.96 29.80 29.67 10 10 9 23 9 29 T Rain
16 70 60 50 51 39 31 77 51 24 29.82 29.75 29.68 10 10 10 24 13 35 0.01 Rain
17 69 57 44 32 28 23 58 39 20 30.00 29.89 29.80 10 10 10 28 14 35 0.00