Weather History for Siloam Springs, AR

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Month of September, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 98 °F 78 °F 57 °F
Mean Temperature 86 °F 66 °F 53 °F
Min Temperature 77 °F 54 °F 42 °F
Degree Days  
Heating Degree Days (base 65) 12 2 0 74
Cooling Degree Days (base 65) 22 4 0 106
Growing Degree Days (base 50) 36 16 3 483
Dew Point  
Dew Point 70 °F 51 °F 32 °F
Precipitation  
Precipitation 1.22 in 0.06 in 0.00 in 1.94 in
Snowdepth - - - -
Wind  
Wind 22 mph 6 mph 0 mph
Gust Wind 26 mph 18 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.32 in 30.05 in 29.77 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 09, 2011 Rise Set
Actual Time 6:55 AM CDT 7:34 PM CDT
Civil Twilight 6:29 AM CDT 8:00 PM CDT
Nautical Twilight 5:59 AM CDT 8:30 PM CDT
Astronomical Twilight 5:27 AM CDT 9:02 PM CDT
Moon 5:58 PM CDT (9/9) 4:20 AM CDT (9/9)
Length of Visible Light 13h 30m
Length of Day
12h 38m
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 1.94 Average Month Total: 6.77
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
96 | 77 0.00
Average:
85 | 63 1.22
Clear
Actual:
95 | 73 0.00
Average:
84 | 63 0.13
Clear
Actual:
93 | 69 0.00
Average:
84 | 62 0.14
Partly Cloudy
Actual:
77 | 62 0.00
Average:
83 | 62 0.15
Clear
Actual:
77 | 53 0.00
Average:
83 | 61 0.15
Clear
Actual:
78 | 48 0.00
Average:
82 | 61 1.22
Clear
Actual:
78 | 44 0.00
Average:
82 | 60 0.16
Clear
Actual:
78 | 48 0.00
Average:
81 | 60 0.16
Partly Cloudy
Actual:
80 | 48 0.00
Average:
81 | 60 0.16
Thunderstorm
Actual:
80 | 51 0.00
Average:
80 | 59 0.16
Scattered Clouds
Actual:
82 | 53 0.00
Average:
79 | 59 0.16
Clear
Actual:
91 | 57 0.00
Average:
79 | 59 0.16
Thunderstorm
Actual:
98 | 69 0.00
Average:
79 | 58 0.15
Partly Cloudy
Actual:
75 | 55 0.00
Average:
78 | 58 0.15
Partly Cloudy
Actual:
60 | 46 0.00
Average:
78 | 58 0.14
Mostly Cloudy
Actual:
57 | 53 0.19
Average:
77 | 57 0.13
Thunderstorm
Actual:
64 | 55 0.15
Average:
77 | 57 0.13
Thunderstorm
Actual:
78 | 60 1.22
Average:
76 | 56 0.12
Partly Cloudy
Actual:
78 | 55 0.02
Average:
76 | 56 0.12
Clear
Actual:
80 | 50 0.00
Average:
75 | 55 0.11
Clear
Actual:
71 | 55 0.00
Average:
75 | 54 0.11
Partly Cloudy
Actual:
62 | 51 0.36
Average:
75 | 54 0.10
Clear
Actual:
73 | 44 0.00
Average:
75 | 53 0.09
Scattered Clouds
Actual:
77 | 55 0.00
Average:
74 | 53 0.97
Partly Cloudy
Actual:
66 | 53 0.00
Average:
74 | 52 0.08
Scattered Clouds
Actual:
71 | 42 0.00
Average:
74 | 52 0.08
Clear
Actual:
78 | 48 0.00
Average:
74 | 52 0.08
Clear
Actual:
84 | 50 0.00
Average:
74 | 52 0.08
Clear
Actual:
84 | 55 0.00
Average:
73 | 51 0.08
Clear
Actual:
71 | 48 0.00
Average:
73 | 51 0.08
 

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 77 68 66 64 69 51 36 30.07 30.02 29.97 10 10 10 15 9 21 0.00  
2 95 84 73 70 64 57 73 51 34 30.04 29.98 29.92 10 10 10 14 8 18 0.00  
3 93 81 69 70 64 59 83 57 34 29.96 29.92 29.85 10 10 10 9 5 - 0.00  
4 77 70 62 64 58 45 83 64 41 30.07 29.99 29.91 10 10 10 20 9 26 0.00  
5 77 65 53 48 44 43 72 49 29 30.12 30.07 30.02 10 10 10 20 11 26 0.00  
6 78 63 48 45 40 34 76 47 21 30.16 30.12 30.07 10 10 8 10 6 17 0.00  
7 78 61 44 46 42 37 81 48 28 30.25 30.19 30.15 10 10 10 16 5 20 0.00  
8 78 63 48 48 41 37 82 45 23 30.23 30.16 30.07 10 10 10 12 5 17 0.00  
9 80 64 48 55 47 39 76 53 32 30.10 30.04 29.97 10 10 10 16 4 23 0.00  
10 80 66 51 55 52 46 82 63 39 30.06 30.01 29.98 10 10 10 9 2 18 0.00 Thunderstorm
11 82 68 53 57 55 50 94 63 39 30.14 30.09 30.04 10 9 0 13 3 16 0.00  
12 91 74 57 57 53 48 88 55 24 30.15 30.10 30.00 10 10 10 13 4 17 0.00  
13 98 84 69 59 54 48 60 41 22 30.01 29.93 29.87 10 10 10 18 8 26 0.00 Thunderstorm
14 75 66 55 57 55 48 77 67 53 30.18 29.99 29.84 10 10 10 18 8 26 0.00  
15 60 53 46 48 39 32 82 58 34 30.32 30.26 30.19 10 10 3 14 7 21 0.00  
16 57 55 53 54 46 36 94 72 44 30.26 30.20 30.12 10 9 5 12 5 - 0.19  
17 64 60 55 57 54 50 94 82 72 30.15 30.10 30.03 10 9 4 16 8 24 0.15 Thunderstorm
18 78 69 60 70 61 55 94 83 73 30.12 30.01 29.92 10 9 3 22 9 26 1.22 Thunderstorm
19 78 68 55 63 55 48 94 66 34 30.13 30.07 30.02 10 9 0 16 7 23 0.02  
20 80 65 50 55 51 46 88 63 34 30.09 30.04 29.97 10 10 10 8 2 - 0.00  
21 71 62 55 54 52 48 88 77 43 30.16 30.09 30.03 10 10 10 13 4 16 0.00  
22 62 56 51 54 52 46 94 85 72 30.26 30.19 30.14 10 9 0 8 3 - 0.36  
23 73 58 44 54 48 39 93 69 38 30.19 30.12 30.02 10 8 0 15 5 18 0.00  
24 77 66 55 55 52 48 82 65 41 30.01 29.92 29.82 10 10 10 9 4 16 0.00  
25 66 60 53 55 52 43 88 71 52 29.88 29.81 29.77 10 10 10 13 8 20 0.00  
26 71 56 42 48 43 37 87 61 35 30.02 29.94 29.90 10 10 10 10 2 - 0.00  
27 78 63 48 54 49 45 87 62 39 30.02 29.97 29.94 10 10 10 15 4 18 0.00  
28 84 67 50 57 52 46 88 61 33 29.98 29.94 29.88 10 10 8 10 2 16 0.00  
29 84 70 55 59 54 46 88 59 34 30.02 29.95 29.90 10 10 10 18 6 25 0.00  
30 71 60 48 43 39 34 67 46 31 30.29 30.21 30.16 10 10 10 14 7 20 0.00