Weather History for Great Falls, MT

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Month of October, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 88 °F 59 °F 44 °F
Mean Temperature 65 °F 48 °F 35 °F
Min Temperature 50 °F 37 °F 24 °F
Degree Days  
Heating Degree Days (base 65) 30 17 0 520
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 15 2 0 73
Dew Point  
Dew Point 54 °F 33 °F 11 °F
Precipitation  
Precipitation 0.81 in 0.08 in 0.00 in 2.24 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 39 mph 11 mph 0 mph
Gust Wind 49 mph 26 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.48 in 29.98 in 29.45 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Oct. 13, 2011 Rise Set
Actual Time 7:41 AM MDT 6:41 PM MDT
Civil Twilight 7:10 AM MDT 7:12 PM MDT
Nautical Twilight 6:34 AM MDT 7:48 PM MDT
Astronomical Twilight 5:58 AM MDT 8:23 PM MDT
Moon 7:06 PM MDT (10/13) 9:27 AM MDT (10/13)
Length of Visible Light 12h 02m
Length of Day
11h 00m
Full, 98% of the Moon is Illuminated
Oct 13
Full
Oct 19
Last Quarter
Oct 26
New
Nov 2
First Quarter
Nov 10
Full

Weather History Calendar

Precipitation Actual month total 2.24 Normal Month Total: 0.86
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
75 | 50 0.01
Average:
64 | 37 0.04
Clear
Actual:
77 | 44 T
Average:
64 | 37 0.04
Clear
Actual:
88 | 40 0.00
Average:
63 | 37 0.03
Rain
Actual:
80 | 49 0.17
Average:
63 | 36 0.04
Rain
Actual:
60 | 49 0.60
Average:
62 | 36 0.03
Rain
Actual:
50 | 44 0.24
Average:
62 | 36 0.03
Rain
Actual:
47 | 42 0.81
Average:
62 | 35 0.03
Rain
Actual:
54 | 42 0.03
Average:
61 | 35 0.03
Clear
Actual:
63 | 38 0.00
Average:
61 | 35 0.04
Partly Cloudy
Actual:
63 | 37 0.00
Average:
60 | 35 0.03
Scattered Clouds
Actual:
62 | 46 0.00
Average:
60 | 34 0.03
Clear
Actual:
58 | 42 0.00
Average:
60 | 34 0.02
Scattered Clouds
Actual:
58 | 34 0.00
Average:
59 | 34 0.03
Rain
Actual:
49 | 32 T
Average:
59 | 33 0.03
Rain
Actual:
51 | 32 0.29
Average:
58 | 33 0.03
Scattered Clouds
Actual:
47 | 27 T
Average:
58 | 33 0.03
Scattered Clouds
Actual:
57 | 32 0.00
Average:
57 | 33 0.03
Clear
Actual:
60 | 33 0.00
Average:
57 | 32 0.02
Clear
Actual:
66 | 37 0.00
Average:
57 | 32 0.03
Scattered Clouds
Actual:
62 | 42 0.00
Average:
56 | 32 0.02
Scattered Clouds
Actual:
60 | 41 0.00
Average:
56 | 31 0.03
Scattered Clouds
Actual:
62 | 46 0.00
Average:
55 | 31 0.02
Clear
Actual:
63 | 40 0.00
Average:
55 | 31 0.02
Rain
Actual:
51 | 30 0.06
Average:
54 | 31 0.03
Snow
Actual:
44 | 26 0.03
Average:
54 | 30 0.02
Scattered Clouds
Actual:
47 | 24 0.00
Average:
53 | 30 0.03
Scattered Clouds
Actual:
50 | 26 0.00
Average:
53 | 30 0.02
Scattered Clouds
Actual:
54 | 25 0.00
Average:
52 | 29 0.02
Scattered Clouds
Actual:
54 | 32 0.00
Average:
52 | 29 0.02
Clear
Actual:
63 | 31 0.00
Average:
52 | 29 0.02
Scattered Clouds
Actual:
55 | 30 T
Average:
51 | 29 0.02
 

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

2011 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Oct high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 75 63 50 41 35 31 64 45 26 30.00 29.88 29.81 10 10 10 23 8 30 0.01 Rain
2 77 61 44 46 42 37 86 57 27 29.98 29.93 29.89 10 10 10 14 7 20 T  
3 88 64 40 43 38 31 89 51 13 29.99 29.85 29.67 10 10 10 25 9 31 0.00  
4 80 65 49 48 42 35 83 55 26 29.71 29.61 29.49 10 10 4 29 13 35 0.17 Rain
5 60 55 49 54 50 47 100 85 69 29.62 29.52 29.45 10 8 2 13 4 15 0.60 Rain
6 50 47 44 49 44 41 100 91 82 29.73 29.60 29.47 10 9 4 24 15 30 0.24 Rain
7 47 45 42 46 43 40 96 90 83 30.10 29.79 29.64 10 7 2 23 11 30 0.81 Rain
8 54 48 42 42 39 36 100 77 54 30.32 30.22 30.05 10 10 9 14 6 16 0.03 Rain
9 63 51 38 36 33 29 79 53 27 30.16 29.99 29.88 10 10 10 22 11 26 0.00  
10 63 50 37 39 35 32 79 56 32 29.90 29.74 29.58 10 10 10 28 9 33 0.00  
11 62 54 46 39 36 33 66 51 36 29.87 29.67 29.58 10 10 10 26 18 35 0.00  
12 58 50 42 33 31 27 67 50 32 30.05 30.00 29.89 10 10 10 31 17 39 0.00  
13 58 46 34 28 24 17 64 43 22 30.13 30.07 30.03 10 10 10 21 11 26 0.00  
14 49 41 32 37 32 25 92 69 45 30.17 30.09 29.93 10 10 10 14 3 16 T Rain
15 51 42 32 38 35 30 100 75 50 30.20 30.03 29.91 10 9 5 15 5 16 0.29 Rain
16 47 37 27 38 33 26 100 86 71 30.21 30.13 30.00 10 10 6 10 4 12 T  
17 57 45 32 32 29 23 100 64 27 30.40 30.31 30.17 10 10 10 21 11 25 0.00  
18 60 47 33 32 29 27 82 55 27 30.48 30.34 30.17 10 10 10 15 9 18 0.00  
19 66 52 37 33 29 26 64 44 24 30.12 29.93 29.82 10 10 10 22 12 28 0.00  
20 62 52 42 37 36 33 71 54 36 30.03 29.95 29.86 10 10 10 22 12 26 0.00  
21 60 51 41 39 37 36 82 61 40 30.14 30.09 30.01 10 10 10 23 10 28 0.00  
22 62 54 46 37 36 33 65 51 36 30.11 30.01 29.91 10 10 10 35 19 44 0.00  
23 63 52 40 40 32 20 71 45 19 30.05 29.98 29.93 10 10 10 33 12 41 0.00  
24 51 41 30 40 34 24 83 71 58 30.19 29.99 29.90 10 10 6 24 9 31 0.06 Rain
25 44 35 26 28 26 23 92 71 49 30.45 30.33 30.19 10 9 1 22 6 28 0.03 Snow
26 47 36 24 27 20 12 88 55 27 30.43 30.21 30.02 10 10 10 29 15 36 0.00  
27 50 38 26 23 17 14 69 53 37 30.26 30.12 29.96 10 10 10 23 12 30 0.00  
28 54 40 25 20 16 11 75 47 18 30.28 30.08 29.71 10 10 10 28 15 40 0.00  
29 54 43 32 31 23 11 64 42 19 30.16 29.96 29.73 10 10 10 35 19 43 0.00  
30 63 47 31 37 29 22 69 49 29 30.16 30.02 29.83 10 10 10 39 19 49 0.00  
31 55 43 30 38 28 17 61 43 24 30.13 29.91 29.76 10 10 10 37 19 46 T