Weather History for Butte, MT

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Month of May, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 81 °F 61 °F 39 °F
Mean Temperature 62 °F 49 °F 34 °F
Min Temperature 44 °F 35 °F 15 °F
Degree Days  
Heating Degree Days (base 65) 32 16 3 509
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 12 1 0 41
Dew Point  
Dew Point 45 °F 32 °F 6 °F
Precipitation  
Precipitation 0.84 in 0.09 in 0.00 in 2.52 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 32 mph 7 mph 0 mph
Gust Wind 45 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.72 in 30.02 in 29.60 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 17, 2013 Rise Set
Actual Time 5:55 AM MDT 8:58 PM MDT
Civil Twilight 5:20 AM MDT 9:33 PM MDT
Nautical Twilight 4:34 AM MDT 10:19 PM MDT
Astronomical Twilight 3:39 AM MDT 11:14 PM MDT
Moon 12:41 PM MDT (5/17) 1:44 AM MDT (5/17)
Length of Visible Light 16h 13m
Length of Day
15h 02m
Waxing Crescent, 46% of the Moon is Illuminated
May 17
Waxing Crescent
May 17
First Quarter
May 24
Full
May 31
Last Quarter
Jun 8
New

Weather History Calendar

Precipitation Actual month total 2.52 Normal Month Total: 2.08
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
44 | 23 0.00
Average:
57 | 30 0.04
Clear
Actual:
62 | 15 0.00
Average:
57 | 30 0.05
Rain
Actual:
51 | 35 0.04
Average:
57 | 30 0.05
Rain
Actual:
51 | 37 T
Average:
58 | 30 0.05
Scattered Clouds
Actual:
63 | 28 0.00
Average:
58 | 31 0.05
Clear
Actual:
70 | 29 0.00
Average:
58 | 31 0.04
Scattered Clouds
Actual:
71 | 32 0.00
Average:
59 | 31 0.06
Scattered Clouds
Actual:
71 | 33 T
Average:
59 | 32 0.05
Thunderstorm
Actual:
72 | 34 T
Average:
59 | 32 0.05
Scattered Clouds
Actual:
72 | 33 0.00
Average:
60 | 32 0.06
Rain
Actual:
74 | 36 0.01
Average:
60 | 33 0.06
Scattered Clouds
Actual:
81 | 38 0.00
Average:
60 | 33 0.06
Clear
Actual:
81 | 42 0.00
Average:
60 | 33 0.06
Scattered Clouds
Actual:
69 | 41 0.00
Average:
61 | 34 0.06
Scattered Clouds
Actual:
68 | 36 0.00
Average:
61 | 34 0.06
Rain
Actual:
59 | 44 0.20
Average:
61 | 34 0.07
Rain
Actual:
49 | 40 0.24
Average:
62 | 34 0.07
Rain
Actual:
56 | 42 0.03
Average:
62 | 35 0.07
Rain
Actual:
51 | 43 T
Average:
62 | 35 0.07
Rain
Actual:
57 | 44 0.01
Average:
62 | 35 0.07
Rain
Actual:
67 | 34 0.02
Average:
63 | 36 0.08
Rain
Actual:
60 | 33 0.47
Average:
63 | 36 0.08
Snow
Actual:
39 | 30 0.84
Average:
63 | 35 0.08
Snow
Actual:
58 | 32 0.02
Average:
63 | 36 0.08
Rain
Actual:
60 | 32 0.02
Average:
64 | 37 0.08
Rain
Actual:
63 | 32 0.10
Average:
64 | 37 0.08
Rain
Actual:
60 | 35 0.19
Average:
64 | 37 0.09
Rain
Actual:
57 | 41 0.18
Average:
64 | 38 0.09
Thunderstorm
Actual:
60 | 43 0.14
Average:
65 | 38 0.09
Rain
Actual:
55 | 40 0.01
Average:
65 | 38 0.09
Partly Cloudy
Actual:
54 | 35 0.00
Average:
65 | 38 0.09
 

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

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 44 34 23 21 16 9 88 57 25 30.69 30.45 30.20 10 10 10 18 6 23 0.00  
2 62 39 15 16 11 6 80 46 11 30.72 30.52 30.30 10 10 10 16 5 23 0.00  
3 51 43 35 37 29 17 79 58 36 30.27 30.22 30.18 10 10 4 16 6 26 0.04 Rain
4 51 44 37 36 33 29 85 64 42 30.26 30.22 30.17 10 10 10 20 9 24 T Rain
5 63 46 28 34 29 23 92 58 23 30.19 30.06 29.96 10 10 10 23 6 28 0.00  
6 70 50 29 32 25 18 92 54 15 30.03 29.92 29.81 10 10 10 13 4 20 0.00  
7 71 52 32 33 29 25 78 49 19 29.96 29.89 29.83 10 10 10 23 8 31 0.00  
8 71 52 33 36 32 28 82 52 22 30.11 30.05 30.00 10 10 10 23 6 28 T  
9 72 53 34 37 32 25 89 53 17 30.22 30.13 30.07 10 10 10 25 5 32 T Thunderstorm
10 72 53 33 36 30 17 89 52 14 30.36 30.24 30.15 10 10 10 20 7 26 0.00  
11 74 55 36 36 31 28 76 48 19 30.29 30.20 30.10 10 10 9 29 4 45 0.01 Rain
12 81 60 38 37 33 29 76 46 16 30.17 30.05 29.94 10 10 10 20 6 28 0.00  
13 81 62 42 41 32 20 76 44 12 30.03 29.89 29.71 10 10 9 31 9 40 0.00  
14 69 55 41 39 26 16 63 39 14 29.96 29.90 29.83 10 10 10 22 9 29 0.00  
15 68 52 36 35 27 24 70 45 19 30.02 29.92 29.83 10 10 10 21 6 35 0.00  
16 59 52 44 44 40 34 89 66 43 29.93 29.86 29.79 10 10 5 20 3 28 0.20 Rain
17 49 45 40 45 43 39 100 88 76 29.97 29.89 29.82 10 9 5 12 3 14 0.24 Rain
18 56 49 42 43 40 36 100 74 47 30.04 29.96 29.88 10 10 7 22 7 29 0.03 Rain
19 51 47 43 38 36 34 76 65 54 30.20 30.10 30.01 10 10 10 20 11 25 T Rain
20 57 51 44 40 38 36 76 62 47 30.26 30.18 30.09 10 10 10 16 7 20 0.01 Rain
21 67 51 34 43 37 33 92 63 34 30.09 29.88 29.68 10 10 4 32 12 43 0.02 Rain
22 60 47 33 44 38 34 96 72 47 29.93 29.75 29.62 10 8 2 32 15 43 0.47 Rain
23 39 34 30 36 32 28 100 93 79 30.05 29.94 29.84 10 4 0 14 5 26 0.84 Fog , Rain , Snow
24 58 45 32 35 31 25 96 63 30 30.06 29.97 29.88 10 8 2 23 6 30 0.02 Snow
25 60 46 32 42 35 30 92 66 39 30.01 29.96 29.88 10 10 10 20 4 25 0.02 Rain
26 63 48 32 40 37 32 100 68 36 30.04 29.95 29.85 10 10 7 21 5 31 0.10 Rain
27 60 48 35 43 38 34 100 70 40 29.97 29.90 29.77 10 9 2 21 3 25 0.19 Rain
28 57 49 41 43 40 36 96 73 50 29.82 29.77 29.71 10 10 5 17 7 23 0.18 Rain
29 60 52 43 43 38 31 86 61 36 29.80 29.70 29.60 10 10 8 18 6 23 0.14 Rain , Thunderstorm
30 55 48 40 39 33 27 89 62 35 30.02 29.87 29.77 10 10 10 24 12 35 0.01 Rain
31 54 45 35 32 30 27 76 59 41 30.32 30.16 30.03 10 10 10 20 10 26 0.00