Weather History for Knoxville, IA

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 98 °F 80 °F 62 °F
Mean Temperature 86 °F 69 °F 56 °F
Min Temperature 73 °F 58 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 8 2 0 54
Cooling Degree Days (base 65) 20 6 0 173
Growing Degree Days (base 50) 36 19 6 566
Dew Point  
Dew Point 73 °F 56 °F 39 °F
Precipitation  
Precipitation 0.81 in 0.05 in 0.00 in 1.51 in
Snowdepth - - - -
Wind  
Wind 37 mph 8 mph 0 mph
Gust Wind 47 mph 18 mph 12 mph
Sea Level Pressure  
Sea Level Pressure 30.36 in 29.99 in 29.70 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 13, 2013 Rise Set
Actual Time 6:51 AM CDT 7:24 PM CDT
Civil Twilight 6:23 AM CDT 7:52 PM CDT
Nautical Twilight 5:50 AM CDT 8:25 PM CDT
Astronomical Twilight 5:16 AM CDT 8:58 PM CDT
Moon 3:17 PM CDT (9/13) 12:18 AM CDT (9/13)
Length of Visible Light 13h 29m
Length of Day
12h 33m
First Quarter, 61% of the Moon is Illuminated
Sep 13
First Quarter
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Weather History Calendar

Precipitation Actual month total 1.51 Average Month Total: 3.53
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Rain
Actual:
84 | 66 0.10
Average:
83 | 61 0.09
Clear
Actual:
78 | 57 0.00
Average:
83 | 61 0.07
Clear
Actual:
78 | 51 0.00
Average:
82 | 61 0.02
Scattered Clouds
Actual:
87 | 59 0.00
Average:
81 | 60 0.11
Scattered Clouds
Actual:
89 | 66 0.00
Average:
81 | 58 0.09
Clear
Actual:
91 | 64 0.00
Average:
81 | 59 0.14
Rain
Actual:
98 | 71 0.00
Average:
83 | 60 0.06
Clear
Actual:
89 | 69 0.00
Average:
81 | 59 0.11
Clear
Actual:
98 | 73 0.00
Average:
81 | 57 0.15
Clear
Actual:
96 | 73 0.00
Average:
80 | 56 0.18
Rain
Actual:
86 | 71 0.00
Average:
80 | 56 0.07
Scattered Clouds
Actual:
78 | 62 0.00
Average:
81 | 57 0.12
Clear
Actual:
73 | 53 0.00
Average:
77 | 56 0.22
Scattered Clouds
Actual:
77 | 44 0.00
Average:
75 | 54 0.24
Rain
Actual:
68 | 57 0.33
Average:
75 | 53 0.18
Partly Cloudy
Actual:
62 | 53 0.00
Average:
73 | 53 0.09
Rain
Actual:
64 | 53 0.15
Average:
76 | 54 0.18
Partly Cloudy
Actual:
87 | 66 0.00
Average:
75 | 55 0.14
Rain
Actual:
87 | 64 0.81
Average:
75 | 54 0.16
Partly Cloudy
Actual:
68 | 51 0.00
Average:
75 | 53 0.19
Clear
Actual:
69 | 44 0.00
Average:
74 | 51 0.03
Clear
Actual:
75 | 50 0.00
Average:
73 | 50 0.17
Clear
Actual:
75 | 50 0.00
Average:
71 | 48 0.18
Scattered Clouds
Actual:
77 | 53 0.00
Average:
73 | 49 0.04
Scattered Clouds
Actual:
78 | 53 0.00
Average:
73 | 50 0.12
Scattered Clouds
Actual:
82 | 57 0.00
Average:
73 | 48 0.08
Clear
Actual:
84 | 64 0.00
Average:
71 | 49 0.03
Rain
Actual:
69 | 50 0.12
Average:
72 | 50 0.04
Clear
Actual:
73 | 44 0.00
Average:
72 | 49 0.18
Clear
Actual:
77 | 48 0.00
Average:
74 | 49 0.05
 

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

2013 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 84 76 66 68 63 54 94 67 35 29.95 29.86 29.74 10 10 4 20 9 26 0.10 Rain
2 78 68 57 57 54 48 94 66 34 30.06 30.01 29.96 10 10 10 14 8 20 0.00  
3 78 64 51 55 52 48 94 65 34 30.13 30.08 30.04 10 10 10 8 3 16 0.00  
4 87 73 59 63 56 52 78 56 35 30.16 30.12 30.06 10 10 10 8 5 14 0.00  
5 89 78 66 64 63 61 83 61 38 30.20 30.15 30.12 10 10 10 9 5 12 0.00  
6 91 78 64 64 59 54 88 57 29 30.15 30.07 29.97 10 10 10 15 7 21 0.00  
7 98 84 71 73 65 61 89 58 32 29.98 29.91 29.84 10 10 7 16 9 23 0.00 Rain
8 89 79 69 72 71 68 94 75 55 29.93 29.88 29.83 10 9 4 12 7 17 0.00  
9 98 86 73 72 64 59 89 54 27 29.89 29.84 29.81 10 10 10 17 9 30 0.00  
10 96 84 73 63 61 59 65 46 28 30.01 29.95 29.90 10 10 10 21 11 26 0.00  
11 86 78 71 70 67 63 83 69 51 30.11 30.07 30.01 10 10 7 12 7 15 0.00 Rain
12 78 70 62 68 52 41 94 55 26 30.18 30.13 30.07 10 10 4 20 8 25 0.00  
13 73 63 53 50 44 39 77 52 29 30.24 30.17 30.11 10 10 7 10 7 14 0.00  
14 77 60 44 46 41 39 81 48 26 30.14 30.06 29.94 10 10 10 14 7 21 0.00  
15 68 62 57 64 55 45 88 74 46 30.23 30.01 29.88 10 9 3 15 9 23 0.33 Rain
16 62 58 53 54 53 52 94 84 68 30.36 30.29 30.23 10 10 9 12 6 16 0.00  
17 64 58 53 63 56 50 100 91 82 30.26 30.13 30.01 10 6 0 12 8 16 0.15 Rain
18 87 76 66 68 66 63 94 72 49 30.01 29.88 29.78 10 8 4 22 12 31 0.00  
19 87 76 64 68 66 63 100 77 52 29.88 29.82 29.70 10 9 0 37 12 47 0.81 Rain
20 68 60 51 64 52 48 94 72 49 29.99 29.94 29.87 10 10 10 20 10 26 0.00  
21 69 56 44 46 44 41 93 63 35 30.04 29.97 29.91 10 10 10 10 7 16 0.00  
22 75 62 50 52 49 45 87 63 41 30.00 29.95 29.90 10 10 10 13 7 17 0.00  
23 75 62 50 54 49 46 94 64 36 29.99 29.92 29.86 10 10 7 17 10 28 0.00  
24 77 65 53 55 53 48 82 68 47 29.90 29.87 29.83 10 10 10 15 8 22 0.00  
25 78 66 53 59 55 50 88 69 47 29.95 29.89 29.85 10 10 6 10 6 16 0.00  
26 82 70 57 63 59 54 88 68 45 29.96 29.92 29.89 10 10 7 20 9 25 0.00  
27 84 74 64 64 60 59 88 64 42 30.01 29.95 29.90 10 10 9 21 11 26 0.00  
28 69 60 50 64 58 48 94 83 68 30.05 29.91 29.83 10 9 2 21 12 32 0.12 Rain
29 73 58 44 50 45 43 94 67 33 30.09 30.03 29.95 10 10 6 13 6 17 0.00  
30 77 62 48 57 50 46 93 66 36 29.95 29.87 29.78 10 10 10 18 9 25 0.00