Weather History for Butte, MT

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Month of August, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 90 °F 80 °F 50 °F
Mean Temperature 69 °F 63 °F 44 °F
Min Temperature 52 °F 44 °F 38 °F
Degree Days  
Heating Degree Days (base 65) 21 3 0 81
Cooling Degree Days (base 65) 4 1 0 14
Growing Degree Days (base 50) 20 13 0 339
Dew Point  
Dew Point 54 °F 38 °F 18 °F
Precipitation  
Precipitation 0.48 in 0.03 in 0.00 in 0.72 in
Snowdepth - - - -
Wind  
Wind 32 mph 5 mph 0 mph
Gust Wind 41 mph 24 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.24 in 29.96 in 29.64 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Aug. 18, 2011 Rise Set
Actual Time 6:33 AM MDT 8:33 PM MDT
Civil Twilight 6:00 AM MDT 9:05 PM MDT
Nautical Twilight 5:20 AM MDT 9:45 PM MDT
Astronomical Twilight 4:36 AM MDT 10:29 PM MDT
Moon 10:12 PM MDT (8/18) 11:43 AM MDT (8/18)
Length of Visible Light 15h 05m
Length of Day
14h 00m
Waning Gibbous, 78% of the Moon is Illuminated
Aug 18
Waning Gibbous
Aug 21
Last Quarter
Aug 28
New
Sep 4
First Quarter
Sep 12
Full

Weather History Calendar

Precipitation Actual month total 0.72 Normal Month Total: 1.36
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
78 | 50 0.04
Average:
83 | 46 0.04
Clear
Actual:
80 | 45 0.00
Average:
83 | 46 0.04
Thunderstorm
Actual:
82 | 43 0.09
Average:
83 | 46 0.04
Scattered Clouds
Actual:
83 | 43 0.00
Average:
82 | 46 0.04
Thunderstorm
Actual:
70 | 50 0.48
Average:
82 | 46 0.04
Scattered Clouds
Actual:
80 | 44 0.00
Average:
82 | 46 0.04
Clear
Actual:
81 | 46 0.00
Average:
82 | 46 0.05
Thunderstorm
Actual:
81 | 43 T
Average:
82 | 46 0.04
Scattered Clouds
Actual:
79 | 45 0.00
Average:
82 | 45 0.05
Thunderstorm
Actual:
79 | 48 0.03
Average:
81 | 45 0.04
Scattered Clouds
Actual:
74 | 45 0.00
Average:
81 | 45 0.05
Clear
Actual:
50 | 38 0.00
Average:
81 | 45 0.05
Clear
Actual:
- | - -
Average:
81 | 45 0.04
Clear
Actual:
- | - -
Average:
81 | 45 0.05
Clear
Actual:
- | - -
Average:
80 | 44 0.04
Clear
Actual:
- | - -
Average:
80 | 44 0.05
Clear
Actual:
80 | 38 0.00
Average:
80 | 44 0.05
Clear
Actual:
80 | 42 0.00
Average:
80 | 44 0.04
Clear
Actual:
79 | 39 0.00
Average:
79 | 44 0.05
Clear
Actual:
84 | 40 0.00
Average:
79 | 43 0.04
Clear
Actual:
87 | 43 T
Average:
79 | 43 0.05
Clear
Actual:
89 | 43 0.00
Average:
78 | 43 0.04
Clear
Actual:
83 | 46 0.00
Average:
78 | 43 0.04
Clear
Actual:
87 | 43 0.00
Average:
78 | 42 0.04
Scattered Clouds
Actual:
86 | 52 T
Average:
77 | 42 0.05
Clear
Actual:
90 | 44 0.00
Average:
77 | 42 0.04
Clear
Actual:
90 | 45 0.00
Average:
77 | 42 0.05
Rain
Actual:
86 | 52 T
Average:
76 | 41 0.04
Rain
Actual:
78 | 50 0.02
Average:
76 | 41 0.04
Scattered Clouds
Actual:
81 | 41 0.00
Average:
75 | 41 0.05
Scattered Clouds
Actual:
72 | 42 0.06
Average:
75 | 41 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

2011 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Aug high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 78 64 50 53 48 44 89 61 33 30.17 30.05 29.94 10 10 2 24 5 31 0.04 Rain
2 80 63 45 48 44 35 93 57 21 30.24 30.09 30.00 10 10 10 32 7 41 0.00  
3 82 63 43 46 41 32 89 54 18 30.17 30.02 29.89 10 10 10 26 6 36 0.09 Rain , Thunderstorm
4 83 63 43 44 40 29 83 49 15 30.14 29.98 29.92 10 10 2 29 5 37 0.00  
5 70 60 50 54 50 43 96 71 45 30.17 30.04 29.92 10 9 2 20 2 24 0.48 Rain , Thunderstorm
6 80 62 44 48 43 36 93 57 20 30.12 29.97 29.89 10 10 10 26 5 37 0.00  
7 81 64 46 45 37 23 86 49 12 30.07 29.92 29.84 10 10 10 21 7 30 0.00  
8 81 62 43 40 35 27 76 45 14 30.09 29.97 29.88 10 10 10 18 3 24 T Rain , Thunderstorm
9 79 62 45 41 36 30 76 47 17 30.08 29.89 29.84 10 10 10 13 4 17 0.00  
10 79 64 48 50 40 34 77 49 21 30.00 29.88 29.80 10 10 10 28 5 37 0.03 Rain , Thunderstorm
11 74 60 45 48 39 27 89 54 19 30.04 29.92 29.85 10 10 10 17 5 26 0.00  
12 50 44 38 35 34 32 82 69 56 30.18 30.09 30.05 10 10 10 6 3 - 0.00  
13 - - - - - - - - - - - - - - - - - - -  
14 - - - - - - - - - - - - - - - - - - -  
15 - - - - - - - - - - - - - - - - - - -  
16 - - - - - - - - - - - - - - - - - - -  
17 80 59 38 35 32 28 50 33 16 30.02 29.98 29.94 10 10 10 18 5 25 0.00  
18 80 61 42 38 30 23 76 45 13 30.06 29.98 29.92 10 10 10 21 7 31 0.00  
19 79 59 39 37 31 28 64 41 18 30.05 29.99 29.94 10 10 10 14 6 18 0.00  
20 84 62 40 39 34 28 79 47 14 30.05 29.98 29.91 10 10 10 12 4 17 0.00  
21 87 65 43 41 37 31 76 45 13 30.08 29.96 29.89 10 10 10 31 6 41 T  
22 89 66 43 41 32 18 71 39 7 30.01 29.92 29.84 10 10 10 23 5 35 0.00  
23 83 65 46 37 34 30 60 39 17 30.04 29.97 29.91 10 10 9 20 6 28 0.00  
24 87 65 43 38 33 26 65 38 11 30.10 30.01 29.94 10 10 8 22 6 32 0.00  
25 86 69 52 48 40 33 61 40 19 30.12 29.98 29.91 10 10 10 28 4 39 T  
26 90 67 44 45 40 34 83 49 15 30.11 30.02 29.94 10 10 10 21 4 30 0.00  
27 90 68 45 43 36 29 71 42 12 30.09 30.01 29.96 10 10 10 21 6 29 0.00  
28 86 69 52 47 37 34 54 36 17 30.07 29.99 29.90 10 10 10 23 4 31 T Rain
29 78 64 50 49 44 37 67 48 29 29.97 29.85 29.77 10 10 7 23 7 31 0.02 Rain
30 81 61 41 44 37 31 83 50 17 29.91 29.80 29.70 10 10 10 17 4 23 0.00  
31 72 57 42 50 41 32 82 55 28 29.85 29.73 29.64 10 10 10 22 6 29 0.06