Weather History for Great Falls, MT

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Month of September, 2014

  Max Avg Min Sum
Temperature  
Max Temperature 91 °F 70 °F 40 °F
Mean Temperature 74 °F 58 °F 37 °F
Min Temperature 60 °F 44 °F 32 °F
Degree Days  
Heating Degree Days (base 65) 28 8 0 244
Cooling Degree Days (base 65) 9 1 0 25
Growing Degree Days (base 50) 25 8 0 253
Dew Point  
Dew Point 55 °F 40 °F 20 °F
Precipitation  
Precipitation 0.34 in 0.03 in 0.00 in 0.72 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 32 mph 10 mph 0 mph
Gust Wind 38 mph 24 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.64 in 30.00 in 29.57 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 29, 2014 Rise Set
Actual Time 7:21 AM MDT 7:08 PM MDT
Civil Twilight 6:51 AM MDT 7:39 PM MDT
Nautical Twilight 6:15 AM MDT 8:15 PM MDT
Astronomical Twilight 5:38 AM MDT 8:51 PM MDT
Moon 12:55 PM MDT (9/29) 10:27 PM MDT (9/29)
Length of Visible Light 12h 48m
Length of Day
11h 46m
Waxing Crescent, 28% of the Moon is Illuminated
Sep 29
Waxing Crescent
Oct 1
First Quarter
Oct 8
Full
Oct 15
Last Quarter
Oct 23
New

Weather History Calendar

Precipitation Actual month total 0.72 Normal Month Total: 1.42
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
72 | 45 0.00
Average:
77 | 47 0.05
Clear
Actual:
78 | 48 0.00
Average:
76 | 46 0.05
Thunderstorm
Actual:
65 | 46 T
Average:
76 | 46 0.06
Rain
Actual:
67 | 40 0.06
Average:
75 | 46 0.06
Clear
Actual:
70 | 39 0.00
Average:
75 | 45 0.05
Clear
Actual:
78 | 38 0.00
Average:
74 | 45 0.06
Clear
Actual:
83 | 44 0.00
Average:
74 | 45 0.05
Scattered Clouds
Actual:
80 | 37 0.01
Average:
74 | 44 0.05
Rain
Actual:
48 | 34 0.04
Average:
73 | 44 0.05
Snow
Actual:
40 | 33 0.18
Average:
73 | 44 0.04
Snow
Actual:
45 | 32 0.01
Average:
72 | 43 0.05
Clear
Actual:
66 | 35 0.00
Average:
72 | 43 0.05
Partly Cloudy
Actual:
57 | 34 0.00
Average:
71 | 43 0.05
Clear
Actual:
66 | 32 0.00
Average:
71 | 43 0.05
Clear
Actual:
78 | 39 0.00
Average:
70 | 42 0.04
Clear
Actual:
81 | 39 0.00
Average:
70 | 42 0.05
Clear
Actual:
84 | 53 T
Average:
70 | 42 0.05
Clear
Actual:
78 | 56 0.00
Average:
69 | 41 0.04
Clear
Actual:
76 | 51 0.00
Average:
69 | 41 0.05
Clear
Actual:
74 | 47 0.00
Average:
68 | 41 0.04
Clear
Actual:
77 | 42 0.00
Average:
68 | 40 0.05
Clear
Actual:
84 | 48 0.00
Average:
68 | 40 0.04
Scattered Clouds
Actual:
81 | 58 0.00
Average:
67 | 40 0.05
Clear
Actual:
88 | 60 0.00
Average:
67 | 39 0.04
Clear
Actual:
91 | 46 0.00
Average:
66 | 39 0.04
Rain
Actual:
72 | 55 T
Average:
66 | 39 0.04
Rain
Actual:
56 | 47 0.34
Average:
66 | 38 0.05
Rain
Actual:
49 | 46 T
Average:
65 | 38 0.04
Partly Cloudy
Actual:
66 | 39 0.00
Average:
65 | 38 0.04
Rain
Actual:
63 | 42 0.08
Average:
64 | 38 0.04
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2014 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 72 59 45 40 37 34 76 51 26 29.97 29.90 29.85 10 10 10 25 12 31 0.00  
2 78 63 48 41 38 34 71 46 21 29.88 29.76 29.62 10 10 10 22 10 29 0.00  
3 65 56 46 45 41 37 93 68 42 30.07 29.79 29.57 10 10 10 22 10 28 T Rain , Thunderstorm
4 67 54 40 44 39 33 96 63 29 30.20 30.14 30.07 10 10 9 13 7 23 0.06 Rain
5 70 55 39 41 37 32 86 56 26 30.30 30.22 30.15 10 10 10 13 7 17 0.00  
6 78 58 38 39 35 31 79 49 19 30.22 30.11 29.96 10 10 10 13 7 21 0.00  
7 83 64 44 38 30 21 70 40 10 29.99 29.83 29.72 10 10 10 21 12 32 0.00  
8 80 59 37 48 39 28 93 55 16 30.05 29.82 29.68 10 10 6 25 11 32 0.01  
9 48 41 34 37 34 32 100 80 60 30.32 30.17 30.06 10 7 2 18 7 23 0.04 Rain
10 40 37 33 37 35 33 100 96 92 30.55 30.26 30.14 10 6 0 20 8 24 0.18 Fog , Rain , Snow
11 45 50 32 34 32 28 100 77 53 30.64 30.54 30.43 10 8 1 17 8 21 0.01 Snow
12 66 51 35 31 27 20 76 48 19 30.41 30.21 30.08 10 10 10 22 11 29 0.00  
13 57 46 34 37 35 33 92 68 43 30.33 30.23 30.12 10 10 10 14 7 17 0.00  
14 66 49 32 39 36 32 100 67 34 30.19 30.14 30.09 10 10 10 13 6 15 0.00  
15 78 59 39 42 38 33 85 53 21 30.16 30.06 29.98 10 10 10 12 5 15 0.00  
16 81 60 39 47 40 35 79 51 23 30.01 29.93 29.85 10 10 10 14 7 17 0.00  
17 84 69 53 55 48 43 77 54 31 29.89 29.79 29.67 10 10 10 18 7 22 T  
18 78 67 56 51 45 41 62 46 30 29.75 29.66 29.58 10 9 6 24 13 31 0.00  
19 76 64 51 47 43 40 66 48 29 30.00 29.84 29.70 10 10 8 32 17 38 0.00  
20 74 61 47 44 42 40 77 54 31 30.24 30.17 30.01 10 10 10 15 8 21 0.00  
21 77 60 42 48 44 39 89 61 33 30.25 30.13 29.93 10 10 10 15 7 21 0.00  
22 84 66 48 50 47 43 80 54 27 29.92 29.85 29.79 10 10 10 16 11 20 0.00  
23 81 70 58 49 47 44 64 46 28 30.01 29.91 29.84 10 10 0 21 12 24 0.00  
24 88 74 60 49 45 38 56 37 17 29.89 29.81 29.74 10 10 10 25 14 32 0.00  
25 91 69 46 48 41 35 80 47 14 29.88 29.75 29.61 10 10 10 24 9 29 0.00  
26 72 64 55 52 42 34 69 49 28 30.04 29.86 29.60 10 10 10 22 10 28 T Rain
27 56 52 47 50 47 38 100 76 51 30.30 30.18 30.04 10 8 1 21 11 26 0.34 Rain
28 49 48 46 50 46 44 100 93 86 30.30 30.23 30.09 10 10 2 18 12 23 T Rain
29 66 53 39 46 44 39 100 71 42 30.10 29.87 29.64 10 8 1 20 10 26 0.00  
30 63 53 42 47 44 40 93 71 49 29.90 29.75 29.64 10 10 4 23 13 29 0.08 Rain