Weather History for Des Moines, IA

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Month of September, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 96 °F 74 °F 55 °F
Mean Temperature 86 °F 64 °F 50 °F
Min Temperature 75 °F 54 °F 41 °F
Degree Days  
Heating Degree Days (base 65) 15 4 0 116
Cooling Degree Days (base 65) 21 3 0 95
Growing Degree Days (base 50) 35 14 0 414
Dew Point  
Dew Point 74 °F 50 °F 22 °F
Precipitation  
Precipitation 0.41 in 0.03 in 0.00 in 0.71 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 39 mph 8 mph 0 mph
Gust Wind 48 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.46 in 30.04 in 29.71 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 09, 2011 Rise Set
Actual Time 6:48 AM CDT 7:34 PM CDT
Civil Twilight 6:20 AM CDT 8:02 PM CDT
Nautical Twilight 5:47 AM CDT 8:35 PM CDT
Astronomical Twilight 5:12 AM CDT 9:10 PM CDT
Moon 6:01 PM CDT (9/9) 4:07 AM CDT (9/9)
Length of Visible Light 13h 42m
Length of Day
12h 46m
Waxing Gibbous, 93% of the Moon is Illuminated
Sep 9
Waxing Gibbous
Sep 12
Full
Sep 20
Last Quarter
Sep 27
New
Oct 3
First Quarter

Weather History Calendar

Precipitation Actual month total 0.71 Normal Month Total: 3.05
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
96 | 75 0.00
Average:
81 | 61 0.11
Partly Cloudy
Actual:
92 | 74 0.00
Average:
81 | 61 0.11
Thunderstorm
Actual:
78 | 63 0.41
Average:
81 | 61 0.11
Clear
Actual:
74 | 55 0.00
Average:
81 | 60 0.11
Clear
Actual:
72 | 51 0.00
Average:
80 | 60 0.12
Clear
Actual:
72 | 50 0.00
Average:
80 | 60 0.11
Scattered Clouds
Actual:
75 | 50 0.00
Average:
80 | 59 0.11
Scattered Clouds
Actual:
82 | 51 0.00
Average:
79 | 59 0.11
Partly Cloudy
Actual:
83 | 61 0.00
Average:
79 | 58 0.11
Scattered Clouds
Actual:
83 | 59 0.00
Average:
79 | 58 0.10
Scattered Clouds
Actual:
87 | 59 0.00
Average:
78 | 57 0.11
Scattered Clouds
Actual:
90 | 63 0.00
Average:
78 | 57 0.11
Scattered Clouds
Actual:
75 | 59 0.00
Average:
77 | 57 0.10
Rain
Actual:
65 | 49 0.01
Average:
77 | 56 0.10
Partly Cloudy
Actual:
59 | 41 0.00
Average:
77 | 56 0.10
Rain
Actual:
55 | 49 0.07
Average:
76 | 55 0.10
Rain
Actual:
59 | 51 T
Average:
76 | 55 0.10
Rain
Actual:
63 | 56 0.19
Average:
75 | 54 0.10
Partly Cloudy
Actual:
79 | 57 0.00
Average:
75 | 54 0.10
Rain
Actual:
79 | 56 0.01
Average:
74 | 53 0.11
Partly Cloudy
Actual:
69 | 53 0.00
Average:
74 | 53 0.10
Scattered Clouds
Actual:
64 | 44 0.00
Average:
74 | 52 0.09
Scattered Clouds
Actual:
68 | 42 0.00
Average:
73 | 52 0.10
Partly Cloudy
Actual:
67 | 45 0.00
Average:
73 | 51 0.09
Partly Cloudy
Actual:
68 | 42 0.00
Average:
72 | 51 0.09
Rain
Actual:
68 | 51 0.02
Average:
72 | 50 0.09
Rain
Actual:
72 | 54 T
Average:
71 | 50 0.09
Partly Cloudy
Actual:
81 | 58 0.00
Average:
71 | 50 0.09
Partly Cloudy
Actual:
76 | 57 T
Average:
70 | 49 0.09
Scattered Clouds
Actual:
71 | 49 0.00
Average:
70 | 49 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

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 96 86 75 73 70 66 87 65 42 29.85 29.80 29.77 10 10 8 22 12 28 0.00  
2 92 83 74 74 69 64 74 62 49 29.90 29.84 29.77 10 10 9 33 7 44 0.00  
3 78 71 63 72 68 57 87 80 73 30.01 29.90 29.82 10 8 2 20 7 24 0.41 Rain , Thunderstorm
4 74 65 55 54 49 45 83 61 38 30.17 30.10 30.02 10 10 10 23 11 31 0.00  
5 72 62 51 49 46 41 89 62 34 30.23 30.18 30.12 10 10 10 13 5 18 0.00  
6 72 61 50 49 47 44 83 62 40 30.23 30.19 30.16 10 10 10 9 3 13 0.00  
7 75 63 50 51 49 47 83 62 41 30.29 30.25 30.21 10 10 10 13 5 18 0.00  
8 82 67 51 57 53 48 89 64 39 30.27 30.19 30.09 10 10 10 17 6 24 0.00  
9 83 72 61 59 56 51 90 62 34 30.07 30.00 29.93 10 10 10 16 7 20 0.00  
10 83 71 59 59 56 54 84 63 42 30.06 30.02 29.99 10 10 10 12 4 21 0.00  
11 87 73 59 61 59 55 90 64 37 30.08 30.02 29.98 10 10 10 12 5 17 0.00  
12 90 77 63 63 59 57 78 56 34 30.02 29.91 29.80 10 10 10 26 11 31 0.00  
13 75 67 59 60 48 43 67 53 38 30.06 30.00 29.88 10 10 10 20 9 28 0.00  
14 65 57 49 49 38 25 77 51 25 30.35 30.19 30.05 10 10 10 21 9 32 0.01 Rain
15 59 50 41 34 28 22 70 47 24 30.46 30.38 30.31 10 10 10 15 7 18 0.00  
16 55 52 49 47 43 33 77 62 46 30.34 30.28 30.22 10 10 9 12 7 16 0.07 Rain
17 59 55 51 51 48 45 83 73 62 30.22 30.15 30.08 10 10 8 18 8 23 T Rain
18 63 60 56 61 57 51 93 84 75 30.07 29.99 29.94 10 7 1 12 6 14 0.19 Rain
19 79 68 57 59 53 43 97 64 30 30.07 30.01 29.97 10 8 2 15 7 29 0.00  
20 79 68 56 57 51 44 84 63 42 29.98 29.92 29.85 10 10 10 24 11 31 0.01 Rain
21 69 61 53 47 45 43 71 58 44 30.12 30.03 29.96 10 10 10 25 14 31 0.00  
22 64 54 44 45 42 38 92 66 40 30.20 30.15 30.11 10 10 10 21 6 28 0.00  
23 68 55 42 46 42 39 89 65 40 30.18 30.11 30.03 10 10 10 12 3 14 0.00  
24 67 56 45 46 42 39 89 65 40 30.05 30.01 29.96 10 10 10 12 3 17 0.00  
25 68 55 42 48 43 40 89 65 40 30.01 29.93 29.86 10 10 10 16 5 21 0.00  
26 68 60 51 57 50 45 89 69 49 29.87 29.81 29.71 10 10 4 29 13 36 0.02 Rain
27 72 63 54 55 53 52 93 75 57 29.92 29.87 29.79 10 10 9 14 6 17 T Rain
28 81 70 58 57 55 53 86 63 39 29.89 29.84 29.80 10 10 10 10 4 16 0.00  
29 76 67 57 53 42 34 78 50 21 30.10 29.92 29.78 10 10 10 39 15 48 T  
30 71 60 49 46 39 32 74 50 26 30.24 30.18 30.12 10 10 10 20 10 24 0.00