Great Falls, MT

10:40 PM MST on February 24, 2017 (GMT -0700)
Great Falls International

Weather History for KGTF - September, 2013

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Week of September 15, 2013 through September 21, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 90 °F 76 °F 59 °F
Mean Temperature 75 °F 62 °F 50 °F
Min Temperature 59 °F 47 °F 35 °F
Degree Days  
Heating Degree Days (base 65) 15 5 0 37
Cooling Degree Days (base 65) 10 2 0 16
Growing Degree Days (base 50) 24 12 0 83
Dew Point  
Dew Point 53 °F 39 °F 23 °F
Precipitation  
Precipitation 0.06 in 0.01 in 0.00 in 0.06 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 30 mph 10 mph 0 mph
Gust Wind 41 mph 24 mph 20 mph
Sea Level Pressure  
Sea Level Pressure 30.22 in 29.82 in 29.45 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Sep. 20, 2013 Rise Set
Actual Time 7:09 AM MDT 7:26 PM MDT
Civil Twilight 6:39 AM MDT 7:57 PM MDT
Nautical Twilight 6:02 AM MDT 8:33 PM MDT
Astronomical Twilight 5:25 AM MDT 9:10 PM MDT
Moon 7:52 PM MDT (9/20) 8:37 AM MDT (9/20)
Length of Visible Light 13h 18m
Length of Day
12h 16m
Full, 98% of the Moon is Illuminated
Sep 20
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Daily Weather History & Observations

2013 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  
15 83 64 45 52 46 42 86 58 30 30.14 29.99 29.80 10 10 10 26 7 35 0.00  
16 90 75 59 53 48 41 63 42 21 29.80 29.72 29.63 10 10 10 30 11 41 T  
17 70 60 49 49 45 41 80 60 40 29.77 29.69 29.58 10 10 10 25 8 31 T  
18 59 50 41 46 40 34 93 70 47 30.13 29.79 29.55 10 10 9 24 13 29 0.06 Rain
19 67 51 35 43 38 35 100 66 32 30.22 30.13 30.04 10 10 10 13 6 15 T  
20 80 63 45 36 31 24 65 39 13 30.02 29.84 29.64 10 10 10 20 11 25 0.00  
21 85 71 57 33 27 23 36 24 12 29.63 29.55 29.45 10 10 10 25 13 31 0.00