Weather History for Rapid City, SD

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Month of August, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 107 °F 89 °F 73 °F
Mean Temperature 85 °F 73 °F 61 °F
Min Temperature 65 °F 56 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 4 0 0 5
Cooling Degree Days (base 65) 20 8 0 243
Growing Degree Days (base 50) 34 23 10 709
Dew Point  
Dew Point 63 °F 45 °F 29 °F
Precipitation  
Precipitation 0.53 in 0.02 in 0.00 in 0.58 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 49 mph 10 mph 0 mph
Gust Wind 63 mph 25 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.26 in 29.95 in 29.56 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Aug. 30, 2012 Rise Set
Actual Time 6:13 AM MDT 7:30 PM MDT
Civil Twilight 5:43 AM MDT 8:00 PM MDT
Nautical Twilight 5:07 AM MDT 8:36 PM MDT
Astronomical Twilight 4:29 AM MDT 9:14 PM MDT
Moon 6:45 PM MDT (8/30) 5:17 AM MDT (8/30)
Length of Visible Light 14h 16m
Length of Day
13h 16m
Waxing Gibbous, 99% of the Moon is Illuminated
Aug 30
Waxing Gibbous
Aug 31
Full
Sep 8
Last Quarter
Sep 15
New
Sep 22
First Quarter

Weather History Calendar

Precipitation Actual month total 0.58 Normal Month Total: 1.56
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
95 | 61 0.00
Average:
89 | 59 0.06
Thunderstorm
Actual:
93 | 56 0.01
Average:
88 | 59 0.07
Thunderstorm
Actual:
81 | 54 T
Average:
88 | 59 0.06
Clear
Actual:
79 | 48 0.00
Average:
88 | 59 0.06
Clear
Actual:
97 | 47 0.00
Average:
88 | 59 0.06
Clear
Actual:
98 | 60 0.00
Average:
88 | 59 0.06
Clear
Actual:
95 | 65 T
Average:
88 | 59 0.06
Clear
Actual:
89 | 59 0.00
Average:
88 | 59 0.05
Clear
Actual:
88 | 55 0.00
Average:
88 | 58 0.06
Thunderstorm
Actual:
95 | 58 0.04
Average:
88 | 58 0.06
Thunderstorm
Actual:
82 | 60 0.53
Average:
88 | 58 0.05
Clear
Actual:
84 | 56 0.00
Average:
88 | 58 0.06
Thunderstorm
Actual:
85 | 57 T
Average:
87 | 58 0.05
Clear
Actual:
88 | 57 0.00
Average:
87 | 58 0.06
Scattered Clouds
Actual:
73 | 56 0.00
Average:
87 | 57 0.05
Partly Cloudy
Actual:
74 | 47 0.00
Average:
87 | 57 0.05
Scattered Clouds
Actual:
85 | 44 0.00
Average:
87 | 57 0.04
Clear
Actual:
81 | 53 0.00
Average:
87 | 57 0.05
Clear
Actual:
84 | 51 0.00
Average:
86 | 56 0.04
Clear
Actual:
86 | 48 0.00
Average:
86 | 56 0.04
Clear
Actual:
92 | 47 0.00
Average:
86 | 56 0.04
Clear
Actual:
93 | 55 0.00
Average:
86 | 56 0.05
Clear
Actual:
95 | 58 0.00
Average:
85 | 55 0.04
Thunderstorm
Actual:
99 | 62 T
Average:
85 | 55 0.04
Scattered Clouds
Actual:
79 | 56 0.00
Average:
85 | 55 0.05
Clear
Actual:
88 | 50 0.00
Average:
84 | 54 0.04
Clear
Actual:
100 | 55 0.00
Average:
84 | 54 0.04
Clear
Actual:
100 | 63 0.00
Average:
84 | 54 0.04
Clear
Actual:
107 | 62 0.00
Average:
83 | 53 0.04
Clear
Actual:
87 | 64 0.00
Average:
83 | 53 0.05
Clear
Actual:
90 | 62 0.00
Average:
83 | 53 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

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 95 78 61 58 52 47 63 44 25 29.97 29.86 29.80 10 10 10 25 9 30 0.00  
2 93 75 56 56 50 42 80 49 18 30.03 29.88 29.70 10 10 9 49 11 63 0.01 Rain , Thunderstorm
3 81 68 54 59 51 42 86 64 41 30.08 29.86 29.72 10 10 10 45 16 54 T Rain , Thunderstorm
4 79 64 48 50 43 38 89 56 23 30.21 30.10 30.04 10 10 10 30 13 38 0.00  
5 97 72 47 48 44 40 86 50 14 30.22 30.07 29.93 10 10 10 24 11 29 0.00  
6 98 79 60 47 44 39 56 35 14 30.00 29.97 29.94 10 10 10 16 7 18 0.00  
7 95 80 65 54 48 44 52 35 17 30.01 29.97 29.93 10 10 10 20 7 26 T  
8 89 74 59 54 46 36 60 42 24 30.20 30.05 29.96 10 10 10 26 13 32 0.00  
9 88 72 55 54 48 43 83 54 25 30.15 30.10 30.04 10 10 10 18 8 24 0.00  
10 95 77 58 58 50 44 80 50 20 30.09 29.99 29.88 10 10 10 31 12 37 0.04 Rain , Thunderstorm
11 82 71 60 63 59 56 93 69 45 29.99 29.91 29.83 10 9 0 38 12 49 0.53 Rain , Thunderstorm
12 84 70 56 56 53 47 87 59 30 30.14 30.06 29.98 10 10 10 25 12 33 0.00  
13 85 71 57 56 49 45 80 53 25 30.14 30.02 29.89 10 10 10 33 11 43 T Rain , Thunderstorm
14 88 73 57 56 52 49 84 56 28 29.95 29.79 29.71 10 10 10 16 6 20 0.00  
15 73 65 56 52 49 45 72 56 40 30.22 29.91 29.65 10 10 10 43 21 52 0.00  
16 74 61 47 46 40 36 80 54 27 30.26 30.19 30.12 10 10 10 16 7 21 0.00  
17 85 65 44 46 40 33 76 49 22 30.16 30.03 29.96 10 10 10 18 7 23 0.00  
18 81 67 53 38 34 32 54 36 17 30.11 30.05 30.00 10 10 10 22 12 32 0.00  
19 84 68 51 39 36 35 54 36 18 30.15 30.05 29.97 10 10 10 14 6 18 0.00  
20 86 67 48 39 38 36 61 39 17 30.02 29.96 29.90 10 10 10 13 4 17 0.00  
21 92 70 47 45 40 34 74 44 14 30.03 29.91 29.87 10 10 10 16 5 22 0.00  
22 93 74 55 51 45 42 67 43 18 29.86 29.79 29.73 10 10 10 15 6 18 0.00  
23 95 77 58 50 42 37 56 36 15 29.86 29.79 29.72 10 10 10 20 8 25 0.00  
24 99 81 62 57 46 33 56 37 17 29.81 29.66 29.56 10 10 10 26 14 35 T Rain , Thunderstorm
25 79 68 56 37 32 29 47 32 16 30.02 29.94 29.84 10 10 10 30 13 39 0.00  
26 88 69 50 48 39 33 50 34 18 30.04 30.00 29.93 10 10 10 17 7 24 0.00  
27 100 78 55 56 46 43 66 41 16 30.10 29.96 29.86 10 10 10 22 6 30 0.00  
28 100 82 63 54 46 40 48 31 13 30.06 29.90 29.84 10 10 10 16 7 20 0.00  
29 107 85 62 51 45 33 60 35 9 29.94 29.72 29.63 10 10 10 28 8 33 0.00  
30 87 76 64 42 37 32 37 27 17 30.01 29.91 29.66 10 10 10 28 12 32 0.00  
31 90 76 62 48 44 35 48 35 21 30.03 29.94 29.83 10 10 6 17 7 22 0.00