Weather History for Yankton, SD

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Month of September, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 91 °F 72 °F 53 °F
Mean Temperature 81 °F 60 °F 43 °F
Min Temperature 71 °F 48 °F 33 °F
Degree Days  
Heating Degree Days (base 65) 22 6 0 193
Cooling Degree Days (base 65) 16 1 0 44
Growing Degree Days (base 50) 31 11 0 317
Dew Point  
Dew Point 73 °F 46 °F 25 °F
Precipitation  
Precipitation 0.26 in 0.01 in 0.00 in 0.34 in
Snowdepth - - - -
Wind  
Wind 32 mph 8 mph 0 mph
Gust Wind 44 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.43 in 30.06 in 29.69 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 08, 2011 Rise Set
Actual Time 7:01 AM CDT 7:52 PM CDT
Civil Twilight 6:32 AM CDT 8:21 PM CDT
Nautical Twilight 5:58 AM CDT 8:55 PM CDT
Astronomical Twilight 5:22 AM CDT 9:30 PM CDT
Moon 5:50 PM CDT (9/8) 3:16 AM CDT (9/8)
Length of Visible Light 13h 48m
Length of Day
12h 50m
Waxing Gibbous, 87% of the Moon is Illuminated
Sep 8
Waxing Gibbous
Sep 12
Full
Sep 20
Last Quarter
Sep 27
New
Oct 3
First Quarter

Weather History Calendar

Precipitation Actual month total 0.34 Average Month Total: 2.09
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
91 | 71 0.00
Average:
83 | 57 0.01
Thunderstorm
Actual:
73 | 64 0.26
Average:
81 | 57 0.11
Thunderstorm
Actual:
71 | 55 0.01
Average:
83 | 56 0.08
Clear
Actual:
69 | 48 0.00
Average:
83 | 55 0.09
Clear
Actual:
71 | 44 0.00
Average:
82 | 55 0.09
Clear
Actual:
75 | 48 0.00
Average:
83 | 55 0.02
Clear
Actual:
77 | 51 0.00
Average:
85 | 55 0.10
Clear
Actual:
78 | 50 0.00
Average:
81 | 52 0.06
Clear
Actual:
82 | 53 0.00
Average:
80 | 52 0.01
Clear
Actual:
84 | 55 0.00
Average:
79 | 52 0.07
Clear
Actual:
84 | 55 0.00
Average:
81 | 52 0.04
Clear
Actual:
91 | 62 0.00
Average:
79 | 52 0.13
Clear
Actual:
71 | 48 0.00
Average:
76 | 52 0.11
Partly Cloudy
Actual:
57 | 42 0.00
Average:
73 | 49 0.08
Scattered Clouds
Actual:
53 | 33 0.00
Average:
72 | 49 0.08
Overcast
Actual:
53 | 42 0.07
Average:
73 | 48 0.05
Overcast
Actual:
55 | 50 0.00
Average:
73 | 49 0.13
Partly Cloudy
Actual:
75 | 53 0.00
Average:
76 | 49 0.08
Clear
Actual:
80 | 48 0.00
Average:
76 | 50 0.14
Thunderstorm
Actual:
69 | 57 0.00
Average:
73 | 48 0.05
Scattered Clouds
Actual:
60 | 48 0.00
Average:
71 | 45 0.05
Clear
Actual:
60 | 33 0.00
Average:
71 | 45 0.08
Clear
Actual:
68 | 33 0.00
Average:
68 | 41 0.05
Clear
Actual:
71 | 41 0.00
Average:
70 | 42 0.03
Clear
Actual:
68 | 39 0.00
Average:
72 | 44 0.05
Clear
Actual:
71 | 39 0.00
Average:
73 | 44 0.08
Clear
Actual:
77 | 46 0.00
Average:
75 | 43 0.01
Clear
Actual:
87 | 46 0.00
Average:
72 | 44 0.02
Scattered Clouds
Actual:
69 | 51 0.00
Average:
71 | 45 0.13
Clear
Actual:
69 | 39 0.00
Average:
72 | 44 0.06
 

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
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 91 81 71 73 71 66 94 74 46 29.79 29.73 29.69 10 7 2 14 8 23 0.00  
2 73 68 64 70 65 63 94 85 73 29.95 29.90 29.79 10 9 3 24 10 39 0.26 Thunderstorm
3 71 64 55 66 57 46 100 74 43 30.13 29.98 29.86 10 7 0 28 9 36 0.01 Thunderstorm
4 69 58 48 50 45 41 87 63 35 30.25 30.21 30.16 10 10 10 20 10 24 0.00  
5 71 58 44 48 46 41 93 66 41 30.24 30.17 30.07 10 9 0 15 4 21 0.00  
6 75 62 48 54 49 45 87 65 44 30.16 30.12 30.09 10 10 10 20 9 24 0.00  
7 77 64 51 55 51 46 88 66 41 30.24 30.22 30.16 10 10 10 16 7 23 0.00  
8 78 64 50 57 52 46 88 66 39 30.35 30.28 30.19 10 10 6 10 2 - 0.00  
9 82 68 53 59 54 50 94 67 37 30.20 30.13 30.05 10 10 10 14 5 24 0.00  
10 84 70 55 63 57 52 94 68 39 30.12 30.07 30.03 10 10 5 14 7 17 0.00  
11 84 70 55 63 57 54 94 63 35 30.08 30.03 29.95 10 10 3 12 3 17 0.00  
12 91 76 62 55 53 48 73 47 23 29.99 29.87 29.81 10 10 5 22 9 28 0.00  
13 71 60 48 50 45 41 93 63 35 30.13 30.09 30.03 10 10 10 10 8 - 0.00  
14 57 50 42 48 32 25 77 50 29 30.39 30.29 30.14 10 10 9 17 9 21 0.00  
15 53 43 33 37 31 28 81 60 38 30.43 30.37 30.26 10 10 5 12 5 20 0.00  
16 53 48 42 45 41 37 87 74 58 30.28 30.17 30.09 10 10 10 21 13 23 0.07  
17 55 52 50 52 48 45 94 84 77 30.11 30.04 29.98 10 7 3 18 12 23 0.00  
18 75 64 53 57 51 45 94 70 34 30.00 29.96 29.94 10 8 3 16 9 24 0.00  
19 80 64 48 48 43 37 76 51 24 30.10 30.00 29.86 10 10 7 13 6 16 0.00  
20 69 63 57 48 43 37 59 49 31 29.99 29.88 29.72 10 10 10 32 18 44 0.00 Thunderstorm
21 60 54 48 45 42 39 82 65 52 30.17 30.08 30.00 10 10 10 23 16 31 0.00  
22 60 46 33 37 35 30 93 70 39 30.22 30.17 30.12 10 10 10 12 7 - 0.00  
23 68 50 33 43 35 28 93 60 32 30.17 30.10 29.98 10 10 10 9 2 - 0.00  
24 71 56 41 43 38 36 81 54 28 29.99 29.96 29.91 10 10 8 13 6 16 0.00  
25 68 54 39 45 39 36 93 61 35 29.98 29.94 29.88 10 10 9 10 5 - 0.00  
26 71 55 39 45 41 34 87 60 38 29.98 29.94 29.88 10 10 8 14 5 20 0.00  
27 77 62 46 50 46 43 87 60 34 30.03 29.96 29.91 10 10 7 12 8 - 0.00  
28 87 66 46 50 45 41 82 52 21 29.90 29.86 29.81 10 10 9 10 3 - 0.00  
29 69 60 51 46 38 34 54 40 27 30.27 30.11 29.87 10 10 7 32 19 41 0.00  
30 69 54 39 41 36 34 87 57 27 30.33 30.26 30.18 10 10 8 10 6 - 0.00