Great Falls, MT

2:06 AM MST on November 19, 2017 (GMT -0700)
Great Falls International

Weather History for KGTF - September, 2010

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Month of September, 2010

  Max Avg Min Sum
Temperature  
Max Temperature 86 °F 68 °F 43 °F
Mean Temperature 68 °F 56 °F 38 °F
Min Temperature 51 °F 42 °F 32 °F
Degree Days  
Heating Degree Days (base 65) 27 10 0 291
Cooling Degree Days (base 65) 3 0 0 8
Growing Degree Days (base 50) 20 6 0 189
Dew Point  
Dew Point 53 °F 41 °F 30 °F
Precipitation  
Precipitation 0.81 in 0.09 in 0.00 in 2.25 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 39 mph 9 mph 0 mph
Gust Wind 46 mph 26 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.35 in 29.97 in 29.65 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 10, 2010 Rise Set
Actual Time 6:56 AM MDT 7:47 PM MDT
Civil Twilight 6:25 AM MDT 8:18 PM MDT
Nautical Twilight 5:47 AM MDT 8:55 PM MDT
Astronomical Twilight 5:08 AM MDT 9:34 PM MDT
Moon 10:05 AM MDT (9/10) 8:27 PM MDT (9/10)
Length of Visible Light 13h 53m
Length of Day
12h 51m
Waxing Crescent, 8% of the Moon is Illuminated
Sep 10
Waxing Crescent
Sep 14
First Quarter
Sep 23
Full
Sep 30
Last Quarter
Oct 7
New

Daily Weather History & Observations

2010 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  
1 67 56 45 46 40 36 82 60 37 30.16 29.87 29.76 10 10 2 39 18 46 0.01 Rain , Thunderstorm
2 71 55 38 42 38 31 92 58 23 30.35 30.27 30.17 10 10 10 14 9 18 0.00  
3 82 61 39 42 39 35 86 53 20 30.22 30.09 29.92 10 10 10 13 5 14 0.00  
4 84 66 48 48 43 39 71 49 26 29.91 29.78 29.69 10 10 10 30 10 39 T Thunderstorm
5 61 51 40 48 43 37 96 76 55 29.99 29.83 29.69 10 8 2 26 7 39 0.81 Rain , Thunderstorm
6 63 51 38 42 37 30 100 65 30 30.08 30.01 29.96 10 10 10 20 8 25 T Rain
7 70 54 38 41 36 33 82 54 26 30.02 29.92 29.78 10 10 10 15 6 20 0.00  
8 66 55 43 51 44 38 96 70 44 29.81 29.76 29.71 10 10 8 14 6 16 0.14 Rain
9 51 50 48 51 48 46 100 93 86 29.80 29.71 29.66 10 7 0 17 8 22 0.10 Rain
10 66 56 45 47 41 34 100 67 34 30.03 29.91 29.81 10 10 10 30 14 37 T Rain
11 72 57 41 38 35 32 70 48 25 30.03 29.99 29.92 10 10 10 29 14 37 0.00  
12 77 58 38 41 37 35 85 54 22 30.13 30.04 29.96 10 10 10 23 7 29 0.00  
13 77 60 42 47 40 35 89 56 23 30.09 30.02 29.97 10 10 10 18 9 22 0.00  
14 58 53 48 50 47 45 100 86 72 30.14 30.10 30.06 10 6 0 15 4 20 0.16 Fog , Rain
15 72 58 43 49 46 43 100 68 35 30.13 30.03 29.90 10 8 2 16 7 21 0.11 Rain
16 66 55 43 53 47 42 100 74 48 30.16 29.94 29.83 10 9 3 24 10 31 0.20 Rain
17 43 38 32 43 36 32 100 96 92 30.35 30.25 30.17 10 6 0 21 9 25 0.36 Rain , Snow
18 55 46 36 44 39 35 100 86 71 30.31 30.14 30.02 10 9 3 14 6 16 0.05 Rain
19 62 52 41 51 45 41 100 82 64 30.06 29.86 29.69 10 7 0 15 4 17 T Fog , Rain
20 65 54 43 50 44 38 100 70 39 29.87 29.75 29.65 10 9 2 24 13 33 0.18 Rain , Thunderstorm
21 49 45 40 45 42 39 100 90 80 29.94 29.88 29.84 10 8 3 12 7 15 0.06 Rain
22 50 45 40 45 44 41 100 90 80 29.95 29.90 29.85 10 6 0 14 7 17 0.07 Fog , Rain
23 64 49 34 45 38 31 100 66 32 29.95 29.87 29.82 10 9 0 23 9 31 0.00 Fog
24 66 57 47 42 36 33 71 51 31 30.23 30.09 29.93 10 10 10 33 15 39 T Rain
25 82 66 49 46 39 31 62 44 26 30.22 30.09 29.96 10 10 10 28 14 41 0.00  
26 85 68 51 44 39 33 71 44 17 30.01 29.90 29.82 10 10 10 29 13 37 0.00  
27 83 66 48 48 45 41 74 51 28 30.10 30.02 29.90 10 10 10 22 11 28 0.00  
28 86 67 48 45 41 34 66 41 16 29.99 29.84 29.72 10 10 10 33 17 43 0.00  
29 75 59 42 47 44 40 96 64 31 30.13 30.09 30.01 10 10 10 12 4 13 0.00  
30 76 59 42 48 45 41 96 65 33 30.25 30.10 30.04 10 9 0 16 7 20 0.00