Weather History for Lewistown, MT

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Month of August, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 96 °F 83 °F 59 °F
Mean Temperature 74 °F 66 °F 50 °F
Min Temperature 58 °F 49 °F 36 °F
Degree Days  
Heating Degree Days (base 65) 15 2 0 62
Cooling Degree Days (base 65) 9 3 0 107
Growing Degree Days (base 50) 24 16 2 503
Dew Point  
Dew Point 54 °F 39 °F 13 °F
Precipitation  
Precipitation 0.17 in 0.02 in 0.00 in 0.43 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 35 mph 7 mph 0 mph
Gust Wind 46 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.30 in 29.96 in 29.65 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Aug. 26, 2012 Rise Set
Actual Time 6:30 AM MDT 8:07 PM MDT
Civil Twilight 5:57 AM MDT 8:39 PM MDT
Nautical Twilight 5:18 AM MDT 9:18 PM MDT
Astronomical Twilight 4:36 AM MDT 10:01 PM MDT
Moon 4:53 PM MDT (8/26) 1:01 AM MDT (8/26)
Length of Visible Light 14h 41m
Length of Day
13h 37m
Waxing Gibbous, 74% of the Moon is Illuminated
Aug 26
Waxing Gibbous
Aug 31
Full
Sep 8
Last Quarter
Sep 15
New
Sep 22
First Quarter

Weather History Calendar

Precipitation Actual month total 0.43 Normal Month Total: 1.73
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
82 | 54 T
Average:
83 | 52 0.05
Rain
Actual:
83 | 53 0.05
Average:
83 | 52 0.06
Rain
Actual:
64 | 47 0.17
Average:
83 | 52 0.05
Clear
Actual:
76 | 44 0.00
Average:
83 | 52 0.06
Clear
Actual:
90 | 47 0.00
Average:
83 | 52 0.05
Rain
Actual:
92 | 53 T
Average:
83 | 51 0.05
Rain
Actual:
89 | 56 T
Average:
83 | 51 0.06
Clear
Actual:
95 | 52 T
Average:
83 | 51 0.05
Clear
Actual:
88 | 57 0.00
Average:
83 | 51 0.06
Rain
Actual:
85 | 58 0.01
Average:
83 | 51 0.06
Rain
Actual:
81 | 57 0.12
Average:
82 | 51 0.06
Scattered Clouds
Actual:
81 | 55 0.00
Average:
82 | 51 0.06
Clear
Actual:
84 | 56 0.00
Average:
82 | 51 0.05
Clear
Actual:
89 | 51 0.00
Average:
82 | 50 0.06
Rain
Actual:
59 | 40 0.04
Average:
81 | 50 0.07
Scattered Clouds
Actual:
75 | 41 0.00
Average:
81 | 50 0.06
Clear
Actual:
81 | 41 0.00
Average:
81 | 50 0.05
Clear
Actual:
82 | 43 0.00
Average:
81 | 50 0.06
Clear
Actual:
88 | 47 0.00
Average:
80 | 49 0.06
Clear
Actual:
88 | 50 0.00
Average:
80 | 49 0.05
Rain
Actual:
91 | 51 0.02
Average:
80 | 49 0.06
Rain
Actual:
82 | 54 T
Average:
79 | 49 0.05
Clear
Actual:
87 | 47 0.00
Average:
79 | 48 0.05
Clear
Actual:
77 | 42 0.00
Average:
79 | 48 0.06
Clear
Actual:
73 | 36 0.00
Average:
78 | 48 0.05
Clear
Actual:
81 | 43 0.00
Average:
78 | 47 0.06
Clear
Actual:
92 | 56 0.02
Average:
78 | 47 0.05
Clear
Actual:
96 | 51 0.00
Average:
77 | 47 0.06
Clear
Actual:
81 | 48 0.00
Average:
77 | 47 0.05
Clear
Actual:
82 | 43 0.00
Average:
76 | 46 0.06
Clear
Actual:
90 | 48 0.00
Average:
76 | 46 0.05
 

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

2012 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 82 68 54 52 44 38 67 44 21 30.02 29.96 29.89 10 10 9 21 8 25 T  
2 83 68 53 53 40 28 86 51 15 29.93 29.88 29.81 10 10 10 22 9 29 0.05 Rain
3 64 56 47 52 46 38 100 70 39 30.13 30.05 29.94 10 10 6 21 11 30 0.17 Rain
4 76 60 44 46 43 39 92 61 29 30.17 30.13 30.09 10 10 10 12 5 25 0.00  
5 90 69 47 47 40 33 71 43 15 30.06 30.01 29.95 10 10 10 12 5 28 0.00  
6 92 73 53 50 41 38 64 40 15 30.03 30.00 29.98 10 10 10 17 6 23 T Rain
7 89 73 56 51 40 31 67 40 12 30.07 30.03 30.00 10 10 10 21 7 29 T Rain
8 95 74 52 48 41 37 66 40 14 30.09 30.02 29.93 10 10 10 20 6 38 T  
9 88 73 57 49 46 43 60 41 22 30.07 30.02 29.98 10 10 9 13 6 15 0.00  
10 85 72 58 54 47 44 62 44 26 30.07 29.90 29.80 10 10 9 35 9 45 0.01 Rain
11 81 69 57 54 50 45 86 59 32 30.07 29.96 29.81 10 10 8 22 9 28 0.12 Rain
12 81 68 55 53 50 48 77 57 36 30.13 30.07 30.01 10 10 10 18 11 26 0.00  
13 84 70 56 51 47 42 72 49 26 30.01 29.93 29.88 10 10 10 17 8 23 0.00  
14 89 70 51 52 40 32 77 46 14 29.91 29.77 29.65 10 10 10 33 11 45 0.00  
15 59 50 40 54 48 38 93 74 54 30.30 30.15 29.91 10 9 2 20 9 29 0.04 Rain
16 75 58 41 41 38 34 89 57 25 30.29 30.15 30.04 10 10 10 9 5 12 0.00  
17 81 61 41 42 37 31 89 53 17 30.12 30.08 30.06 10 10 10 14 5 18 0.00  
18 82 63 43 39 32 23 65 39 12 30.15 30.10 30.04 10 10 10 10 5 15 0.00  
19 88 68 47 39 34 29 61 37 13 30.03 29.96 29.88 10 10 10 12 6 16 0.00  
20 88 69 50 39 36 31 59 37 14 29.94 29.91 29.88 10 10 10 13 5 16 0.00  
21 91 71 51 54 38 33 78 46 14 29.92 29.86 29.73 10 10 10 31 6 41 0.02 Rain
22 82 68 54 54 43 31 80 50 19 29.88 29.85 29.81 10 10 10 16 6 29 T Rain
23 87 67 47 41 35 27 66 39 12 29.88 29.78 29.70 10 10 10 15 4 23 0.00  
24 77 60 42 35 28 13 70 40 10 30.02 29.82 29.71 10 10 7 32 11 46 0.00  
25 73 55 36 34 28 20 85 50 14 30.03 29.98 29.93 10 10 10 15 7 21 0.00  
26 81 62 43 33 30 29 58 37 16 30.07 30.00 29.94 10 10 10 20 11 24 0.00  
27 92 74 56 48 39 32 52 34 15 29.98 29.94 29.89 10 10 10 18 6 28 0.02  
28 96 74 51 48 37 26 77 43 9 30.00 29.87 29.67 10 10 10 21 8 28 0.00  
29 81 65 48 35 31 27 41 28 15 29.96 29.79 29.66 10 10 9 16 7 24 0.00  
30 82 63 43 38 32 26 62 38 14 30.08 29.96 29.87 10 10 8 14 5 20 0.00  
31 90 69 48 40 35 28 56 34 11 29.98 29.84 29.74 10 10 10 22 6 28 0.00