Weather History for Des Moines, IA

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 97 °F 80 °F 63 °F
Mean Temperature 84 °F 67 °F 52 °F
Min Temperature 71 °F 53 °F 36 °F
Degree Days  
Heating Degree Days (base 65) 13 2 0 67
Cooling Degree Days (base 65) 19 4 0 115
Growing Degree Days (base 50) 34 17 1 496
Dew Point  
Dew Point 72 °F 47 °F 25 °F
Precipitation  
Precipitation 0.72 in 0.04 in 0.00 in 0.98 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 32 mph 7 mph 0 mph
Gust Wind 45 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.40 in 30.03 in 29.72 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 23, 2012 Rise Set
Actual Time 7:03 AM CDT 7:09 PM CDT
Civil Twilight 6:35 AM CDT 7:36 PM CDT
Nautical Twilight 6:03 AM CDT 8:09 PM CDT
Astronomical Twilight 5:30 AM CDT 8:42 PM CDT
Moon 3:14 PM CDT (9/23) 12:12 AM CDT (9/23)
Length of Visible Light 13h 00m
Length of Day
12h 05m
First Quarter, 60% of the Moon is Illuminated
Sep 23
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New
Oct 21
First Quarter

Weather History Calendar

Precipitation Actual month total 0.98 Normal Month Total: 3.05
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Mostly Cloudy
Actual:
83 | 69 0.00
Average:
81 | 61 0.11
Scattered Clouds
Actual:
91 | 64 0.00
Average:
81 | 61 0.11
Thunderstorm
Actual:
86 | 70 0.01
Average:
81 | 61 0.11
Thunderstorm
Actual:
97 | 71 0.00
Average:
81 | 60 0.11
Thunderstorm
Actual:
92 | 65 0.02
Average:
80 | 60 0.12
Scattered Clouds
Actual:
87 | 58 0.00
Average:
80 | 60 0.11
Rain
Actual:
74 | 60 T
Average:
80 | 59 0.11
Scattered Clouds
Actual:
82 | 50 0.00
Average:
79 | 59 0.11
Clear
Actual:
77 | 51 0.00
Average:
79 | 58 0.11
Scattered Clouds
Actual:
84 | 52 0.00
Average:
79 | 58 0.10
Partly Cloudy
Actual:
94 | 60 0.00
Average:
78 | 57 0.11
Partly Cloudy
Actual:
86 | 58 T
Average:
78 | 57 0.11
Rain
Actual:
64 | 51 0.72
Average:
77 | 57 0.10
Scattered Clouds
Actual:
78 | 50 0.00
Average:
77 | 56 0.10
Clear
Actual:
80 | 52 0.00
Average:
77 | 56 0.10
Partly Cloudy
Actual:
78 | 52 0.00
Average:
76 | 55 0.10
Rain
Actual:
69 | 51 0.23
Average:
76 | 55 0.10
Scattered Clouds
Actual:
67 | 43 0.00
Average:
75 | 54 0.10
Partly Cloudy
Actual:
84 | 49 0.00
Average:
75 | 54 0.10
Mostly Cloudy
Actual:
73 | 51 0.00
Average:
74 | 53 0.11
Partly Cloudy
Actual:
73 | 53 T
Average:
74 | 53 0.10
Clear
Actual:
63 | 43 0.00
Average:
74 | 52 0.09
Scattered Clouds
Actual:
67 | 36 0.00
Average:
73 | 52 0.10
Partly Cloudy
Actual:
78 | 42 0.00
Average:
73 | 51 0.09
Partly Cloudy
Actual:
85 | 53 0.00
Average:
72 | 51 0.09
Partly Cloudy
Actual:
77 | 53 0.00
Average:
72 | 50 0.09
Partly Cloudy
Actual:
76 | 47 0.00
Average:
71 | 50 0.09
Partly Cloudy
Actual:
75 | 45 0.00
Average:
71 | 50 0.09
Clear
Actual:
83 | 48 0.00
Average:
70 | 49 0.09
Partly Cloudy
Actual:
85 | 52 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

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 83 76 69 70 64 53 87 67 46 29.99 29.95 29.92 10 10 7 20 11 25 0.00  
2 91 78 64 68 62 55 79 63 47 29.98 29.92 29.86 10 10 10 12 5 15 0.00  
3 86 78 70 72 69 67 90 73 55 29.99 29.90 29.84 10 9 6 15 5 18 0.01 Rain , Thunderstorm
4 97 84 71 72 69 65 93 64 35 29.89 29.82 29.72 10 8 2 15 6 18 0.00 Thunderstorm
5 92 79 65 71 60 52 81 58 34 29.90 29.81 29.73 10 10 10 32 9 45 0.02 Thunderstorm
6 87 73 58 56 51 45 80 52 24 30.01 29.91 29.81 10 10 10 17 6 24 0.00  
7 74 67 60 61 55 42 87 66 44 30.04 29.90 29.77 10 10 10 25 12 33 T Rain
8 82 66 50 45 43 37 80 52 23 30.10 30.02 29.88 10 10 10 24 11 30 0.00  
9 77 64 51 49 46 42 77 55 33 30.20 30.13 30.03 10 10 10 13 6 18 0.00  
10 84 68 52 50 48 46 77 53 28 30.16 30.07 29.97 10 10 10 22 11 29 0.00  
11 94 77 60 53 50 46 72 47 21 29.99 29.94 29.89 10 10 10 23 13 31 0.00  
12 86 72 58 58 52 38 73 52 31 30.22 30.04 29.95 10 10 10 26 12 37 T  
13 64 58 51 54 49 47 89 73 56 30.40 30.34 30.24 10 9 2 23 7 31 0.72 Rain
14 78 64 50 49 43 34 86 54 21 30.39 30.34 30.29 10 10 10 15 6 20 0.00  
15 80 66 52 48 45 40 77 52 26 30.30 30.22 30.11 10 10 10 16 7 21 0.00  
16 78 65 52 59 54 46 84 69 54 30.11 30.02 29.93 10 10 9 15 7 20 0.00  
17 69 60 51 59 52 40 90 71 52 30.00 29.94 29.89 10 8 3 20 7 26 0.23 Rain
18 67 55 43 41 36 29 89 57 24 30.09 30.04 29.99 10 10 10 20 8 25 0.00  
19 84 67 49 52 41 32 66 44 22 29.98 29.87 29.75 10 10 10 23 12 28 0.00  
20 73 62 51 39 34 27 54 37 19 30.01 29.97 29.94 10 10 8 22 7 28 0.00  
21 73 63 53 44 41 35 61 47 33 29.94 29.85 29.77 10 10 10 20 7 23 T  
22 63 53 43 39 33 26 71 53 34 30.29 30.15 29.88 10 10 10 21 9 30 0.00  
23 67 52 36 37 31 25 86 54 22 30.37 30.30 30.24 10 10 10 15 4 21 0.00  
24 78 60 42 46 36 30 67 44 21 30.24 30.04 29.86 10 10 10 18 8 24 0.00  
25 85 69 53 52 47 39 83 53 23 29.93 29.84 29.80 10 10 10 13 4 15 0.00  
26 77 65 53 40 36 30 55 37 19 30.14 30.03 29.89 10 10 10 14 5 17 0.00  
27 76 62 47 45 40 37 71 49 27 30.24 30.18 30.13 10 10 10 10 4 20 0.00  
28 75 60 45 43 40 37 71 49 27 30.24 30.18 30.14 10 10 10 8 2 12 0.00  
29 83 66 48 45 42 39 77 50 22 30.19 30.10 30.01 10 10 7 9 2 13 0.00  
30 85 69 52 46 42 38 66 43 20 30.01 29.94 29.87 10 10 10 12 5 14 0.00