Weather History for Harlan, IA

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 76 °F 46 °F
Mean Temperature 78 °F 61 °F 42 °F
Min Temperature 64 °F 45 °F 28 °F
Degree Days  
Heating Degree Days (base 65) 24 6 0 190
Cooling Degree Days (base 65) 12 2 0 54
Growing Degree Days (base 50) 28 11 0 332
Dew Point  
Dew Point 72 °F 46 °F 16 °F
Precipitation  
Precipitation 1.40 in 0.08 in 0.00 in 2.30 in
Snowdepth - - - -
Wind  
Wind 28 mph 4 mph 0 mph
Gust Wind 39 mph 20 mph 9 mph
Sea Level Pressure  
Sea Level Pressure 30.46 in 30.08 in 29.77 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 03, 2012 Rise Set
Actual Time 6:49 AM CDT 7:50 PM CDT
Civil Twilight 6:21 AM CDT 8:18 PM CDT
Nautical Twilight 5:47 AM CDT 8:52 PM CDT
Astronomical Twilight 5:12 AM CDT 9:27 PM CDT
Moon 9:06 PM CDT (9/3) 10:02 AM CDT (9/3)
Length of Visible Light 13h 57m
Length of Day
13h 00m
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

Weather History Calendar

Precipitation Actual month total 2.30 Average Month Total: 4.09
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
87 | 64 0.00
Average:
81 | 59 0.09
Clear
Actual:
89 | 55 0.00
Average:
80 | 59 0.18
Rain
Actual:
84 | 64 0.14
Average:
81 | 59 0.09
Fog
Actual:
93 | 62 0.00
Average:
81 | 58 0.24
Rain
Actual:
84 | 55 0.00
Average:
79 | 56 0.06
Rain
Actual:
86 | 48 0.00
Average:
81 | 57 0.08
Rain
Actual:
71 | 50 0.03
Average:
81 | 57 0.13
Clear
Actual:
80 | 39 0.00
Average:
78 | 56 0.26
Clear
Actual:
73 | 44 0.00
Average:
78 | 55 0.15
Clear
Actual:
82 | 39 0.00
Average:
78 | 54 0.12
Clear
Actual:
91 | 57 0.00
Average:
78 | 54 0.29
Rain
Actual:
75 | 50 1.40
Average:
78 | 55 0.28
Rain
Actual:
66 | 48 0.56
Average:
75 | 53 0.40
Clear
Actual:
77 | 42 0.00
Average:
73 | 52 0.09
Clear
Actual:
77 | 41 0.00
Average:
72 | 50 0.18
Fog
Actual:
71 | 48 0.00
Average:
71 | 51 0.15
Rain
Actual:
64 | 46 0.17
Average:
74 | 51 0.09
Clear
Actual:
46 | 37 0.00
Average:
75 | 53 0.06
Clear
Actual:
84 | 48 0.00
Average:
75 | 53 0.09
Scattered Clouds
Actual:
68 | 44 0.00
Average:
73 | 50 0.16
Clear
Actual:
71 | 44 0.00
Average:
72 | 49 0.03
Clear
Actual:
60 | 32 0.00
Average:
70 | 47 0.08
Clear
Actual:
66 | 28 0.00
Average:
69 | 46 0.07
Clear
Actual:
73 | 35 0.00
Average:
70 | 46 0.08
Clear
Actual:
82 | 42 0.00
Average:
72 | 48 0.13
Clear
Actual:
75 | 44 0.00
Average:
73 | 46 0.23
Clear
Actual:
73 | 33 0.00
Average:
72 | 49 0.03
Clear
Actual:
73 | 33 0.00
Average:
71 | 47 0.09
Clear
Actual:
78 | 35 0.00
Average:
72 | 47 0.12
Scattered Clouds
Actual:
80 | 39 0.00
Average:
73 | 47 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 87 76 64 70 65 61 100 77 40 30.08 30.04 29.99 10 9 7 13 4 17 0.00  
2 89 72 55 66 61 55 100 70 36 30.04 29.99 29.92 10 10 7 10 1 - 0.00  
3 84 74 64 72 68 63 100 86 58 30.04 29.96 29.91 10 8 2 10 1 18 0.14 Rain
4 93 78 62 72 67 63 100 73 36 29.94 29.88 29.77 10 8 0 10 3 - 0.00 Fog
5 84 70 55 72 57 45 94 66 26 30.00 29.91 29.77 10 10 7 18 6 28 0.00 Rain
6 86 67 48 61 50 43 100 60 23 30.06 29.96 29.84 10 10 10 16 4 22 0.00 Rain
7 71 60 50 63 55 45 100 75 40 30.15 29.99 29.79 10 10 10 21 8 26 0.03 Rain
8 80 60 39 48 42 34 100 59 18 30.20 30.11 29.98 10 10 10 20 5 25 0.00  
9 73 58 44 52 45 43 93 67 33 30.28 30.20 30.13 10 10 7 8 4 - 0.00  
10 82 60 39 50 45 39 100 61 26 30.18 30.09 29.96 10 10 7 22 6 30 0.00  
11 91 74 57 54 49 43 82 46 21 29.99 29.95 29.90 10 10 7 24 12 30 0.00  
12 75 63 50 57 52 39 100 63 37 30.34 30.11 29.97 10 10 2 28 10 39 1.40 Rain
13 66 57 48 52 49 46 100 84 52 30.46 30.40 30.32 10 10 10 15 6 21 0.56 Rain
14 77 60 42 54 43 34 100 65 22 30.42 30.37 30.31 10 9 1 14 4 23 0.00  
15 77 59 41 52 46 41 100 67 29 30.33 30.24 30.14 10 10 2 15 3 21 0.00  
16 71 60 48 61 56 48 100 85 60 30.14 30.05 29.97 10 9 0 15 5 21 0.00 Fog
17 64 56 46 57 48 34 100 80 32 30.11 30.02 29.96 10 7 0 16 5 21 0.17 Fog , Rain
18 46 42 37 41 39 37 100 91 76 30.12 30.11 30.10 10 10 10 7 4 - 0.00  
19 84 66 48 48 40 30 87 48 18 30.03 29.91 29.83 10 10 10 21 8 29 0.00  
20 68 56 44 48 36 27 88 53 23 30.10 30.04 30.00 10 10 5 13 3 20 0.00  
21 71 58 44 46 39 27 93 57 20 29.99 29.91 29.84 10 10 10 24 5 30 0.00  
22 60 46 32 39 29 19 93 52 23 30.32 30.23 29.98 10 10 7 17 7 25 0.00  
23 66 47 28 36 30 25 100 63 22 30.40 30.32 30.25 10 10 10 7 1 - 0.00  
24 73 54 35 46 38 34 93 60 23 30.26 30.06 29.90 10 10 7 14 3 20 0.00  
25 82 62 42 50 44 36 100 61 19 29.98 29.89 29.85 10 10 10 8 1 - 0.00  
26 75 60 44 43 32 18 82 45 12 30.20 30.09 29.96 10 10 3 9 5 - 0.00  
27 73 53 33 39 30 16 93 55 11 30.26 30.21 30.17 10 10 4 6 1 - 0.00  
28 73 53 33 54 39 28 100 66 19 30.25 30.21 30.17 10 10 5 7 1 - 0.00  
29 78 56 35 46 39 34 100 63 21 30.24 30.16 30.08 10 10 5 5 0 - 0.00  
30 80 60 39 46 41 36 93 59 21 30.09 30.02 29.95 10 9 3 7 0 - 0.00