Weather History for Rapid City, SD

Month of September, 2012 — View Current Weather Conditions
Month of September, 2012
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Daily Weekly Monthly Custom
  Max Avg Min Sum
Temperature
Max Temperature 101 °F 82 °F 67 °F
Mean Temperature 84 °F 64 °F 51 °F
Min Temperature 66 °F 46 °F 32 °F
Degree Days
Heating Degree Days (base 65) 14 3 0 94
Cooling Degree Days (base 65) 19 2 0 67
Growing Degree Days (base 50) 33 14 1 424
Dew Point
Dew Point 56 °F 33 °F 16 °F
Precipitation
Precipitation 0.12 in 0.01 in 0.00 in 0.14 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind
Wind 36 mph 10 mph 0 mph
Gust Wind 62 mph 26 mph 16 mph
Sea Level Pressure
Sea Level Pressure 30.38 in 30.02 in 29.57 in
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Date:
Astronomy
Sep. 03, 2012 Rise Set
Actual Time 6:18 AM MDT 7:23 PM MDT
Civil Twilight 5:48 AM MDT 7:53 PM MDT
Nautical Twilight 5:13 AM MDT 8:28 PM MDT
Astronomical Twilight 4:35 AM MDT 9:05 PM MDT
Moon 8:33 PM MDT (9/3) 9:38 AM MDT (9/3)
Length Of Visible Light 14h 04m
Length of Day
13h 05m
Waning Gibbous, 90% of the Moon is Illuminated
Sep 3
Waning Gibbous
Sep 8
Last Quarter
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
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Monthly Calendar Weather History Overview
Print This Weather Calendar Precipitation: Actual month total 0.14 Normal month total 1.29
« Previous Month « 2011 September 2012 2013 » Next Month »
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
1 Thunderstorm
Actual: 101 | 66
Precip: 0.12
Average: 82 | 52
Precip: 0.04
2 Scattered Clouds
Actual: 89 | 60
Precip: 0.00
Average: 82 | 52
Precip: 0.05
3 Clear
Actual: 92 | 49
Precip: 0.00
Average: 82 | 51
Precip: 0.04
4 Clear
Actual: 93 | 47
Precip: 0.00
Average: 81 | 51
Precip: 0.04
5 Clear
Actual: 79 | 46
Precip: 0.00
Average: 81 | 51
Precip: 0.04
6 Rain
Actual: 82 | 46
Precip: 0.02
Average: 80 | 50
Precip: 0.04
7 Rain
Actual: 75 | 48
Precip: T
Average: 80 | 50
Precip: 0.05
8 Clear
Actual: 84 | 47
Precip: 0.00
Average: 79 | 49
Precip: 0.04
9 Clear
Actual: 93 | 43
Precip: 0.00
Average: 79 | 49
Precip: 0.04
10 Thunderstorm
Actual: 100 | 52
Precip: 0.00
Average: 78 | 48
Precip: 0.05
11 Scattered Clouds
Actual: 79 | 56
Precip: 0.00
Average: 78 | 48
Precip: 0.04
12 Scattered Clouds
Actual: 72 | 47
Precip: 0.00
Average: 78 | 48
Precip: 0.04
13 Clear
Actual: 80 | 40
Precip: 0.00
Average: 77 | 47
Precip: 0.04
14 Clear
Actual: 83 | 42
Precip: 0.00
Average: 77 | 47
Precip: 0.05
15 Clear
Actual: 91 | 46
Precip: 0.00
Average: 76 | 46
Precip: 0.04
16 Clear
Actual: 75 | 48
Precip: 0.00
Average: 76 | 46
Precip: 0.04
17 Partly Cloudy
Actual: 67 | 39
Precip: 0.00
Average: 75 | 45
Precip: 0.04
18 Scattered Clouds
Actual: 84 | 40
Precip: 0.00
Average: 75 | 45
Precip: 0.05
19 Clear
Actual: 74 | 46
Precip: 0.00
Average: 74 | 45
Precip: 0.04
20 Clear
Actual: 78 | 43
Precip: 0.00
Average: 73 | 44
Precip: 0.04
21 Clear
Actual: 79 | 43
Precip: 0.00
Average: 73 | 44
Precip: 0.05
22 Clear
Actual: 69 | 35
Precip: 0.00
Average: 72 | 43
Precip: 0.04
23 Clear
Actual: 70 | 32
Precip: 0.00
Average: 72 | 43
Precip: 0.04
24 Clear
Actual: 78 | 41
Precip: 0.00
Average: 71 | 42
Precip: 0.05
25 Clear
Actual: 80 | 45
Precip: 0.00
Average: 71 | 42
Precip: 0.04
26 Clear
Actual: 82 | 42
Precip: 0.00
Average: 70 | 42
Precip: 0.05
27 Clear
Actual: 80 | 44
Precip: 0.00
Average: 70 | 41
Precip: 0.04
28 Clear
Actual: 78 | 41
Precip: 0.00
Average: 69 | 41
Precip: 0.04
29 Thunderstorm
Actual: 86 | 52
Precip: T
Average: 69 | 40
Precip: 0.05
30 Scattered Clouds
Actual: 81 | 51
Precip: T
Average: 68 | 40
Precip: 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
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 101 84 66 56 44 36 68 41 14 29.94 29.79 29.69 10 9 2 35 12 62 0.12 Rain , Thunderstorm
2 89 75 60 48 44 42 52 36 19 29.94 29.87 29.75 10 10 10 35 10 41 0.00  
3 92 71 49 45 34 25 74 42 10 29.95 29.88 29.85 10 10 10 25 10 33 0.00  
4 93 70 47 36 28 21 39 24 9 30.03 29.88 29.75 10 10 10 30 14 36 0.00  
5 79 63 46 37 33 30 60 39 18 30.11 30.00 29.89 10 10 10 18 9 24 0.00  
6 82 64 46 49 36 32 72 45 17 30.11 29.94 29.83 10 10 9 30 12 36 0.02 Rain
7 75 62 48 51 39 32 77 50 22 30.26 30.20 30.09 10 10 10 24 11 43 T Rain
8 84 66 47 40 34 28 61 38 14 30.25 30.19 30.11 10 10 10 25 10 32 0.00  
9 93 68 43 38 32 29 65 38 10 30.20 29.99 29.74 10 10 10 29 12 36 0.00  
10 100 76 52 43 33 26 33 21 9 29.76 29.66 29.60 10 10 10 30 8 41 0.00 Thunderstorm
11 79 68 56 45 30 25 33 25 16 30.08 29.85 29.57 10 10 9 36 15 45 0.00  
12 72 60 47 38 27 22 54 36 17 30.33 30.22 30.10 10 10 10 15 6 17 0.00  
13 80 60 40 44 27 19 67 39 10 30.37 30.33 30.27 10 10 10 20 7 23 0.00  
14 83 63 42 31 28 24 49 31 12 30.38 30.25 30.08 10 10 10 21 9 26 0.00  
15 91 69 46 33 24 16 53 30 7 30.11 29.98 29.93 10 10 9 15 6 17 0.00  
16 75 62 48 41 34 22 71 48 24 30.20 30.02 29.93 10 10 10 25 14 32 0.00  
17 67 53 39 40 33 26 76 52 28 30.19 30.15 30.10 10 10 10 20 7 24 0.00  
18 84 62 40 33 29 27 59 37 14 30.09 29.94 29.83 10 10 10 25 9 32 0.00  
19 74 60 46 34 27 23 45 30 15 30.10 30.00 29.79 10 10 10 36 17 45 0.00  
20 78 61 43 32 29 27 53 35 16 30.10 30.02 29.95 10 10 10 29 10 37 0.00  
21 79 61 43 35 32 27 54 37 19 30.17 30.04 29.97 10 10 10 36 16 44 0.00  
22 69 52 35 30 27 25 64 44 24 30.30 30.24 30.18 10 10 10 13 5 26 0.00  
23 70 51 32 30 27 23 64 44 23 30.22 30.17 30.10 10 10 10 12 4 15 0.00  
24 78 60 41 33 29 25 57 38 18 30.08 29.96 29.88 10 10 10 12 5 14 0.00  
25 80 63 45 31 29 27 50 33 16 29.99 29.92 29.87 10 10 5 13 6 20 0.00  
26 82 62 42 35 31 29 53 35 16 30.08 30.03 29.97 10 10 10 21 7 29 0.00  
27 80 62 44 45 36 31 65 42 19 30.13 30.09 30.05 10 10 10 20 6 25 0.00  
28 78 60 41 48 41 37 82 54 26 30.17 30.09 30.01 10 10 10 22 8 29 0.00  
29 86 69 52 49 43 37 71 45 19 30.02 29.95 29.86 10 10 10 23 12 30 T Thunderstorm
30 81 66 51 48 40 35 83 52 20 30.11 29.99 29.91 10 10 10 25 12 31 T  
Comma Delimited File