Weather History for Alton, IL

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Month of April, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 83 °F 64 °F 45 °F
Mean Temperature 71 °F 53 °F 39 °F
Min Temperature 64 °F 43 °F 28 °F
Degree Days  
Heating Degree Days (base 65) 26 12 0 369
Cooling Degree Days (base 65) 6 1 0 18
Growing Degree Days (base 50) 21 6 0 165
Dew Point  
Dew Point 64 °F 39 °F 7 °F
Precipitation  
Precipitation 0.34 in 0.04 in 0.00 in 1.31 in
Snowdepth - - - -
Wind  
Wind 30 mph 9 mph 0 mph
Gust Wind 50 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.43 in 30.01 in 29.58 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Apr. 03, 2013 Rise Set
Actual Time 6:41 AM CDT 7:25 PM CDT
Civil Twilight 6:14 AM CDT 7:52 PM CDT
Nautical Twilight 5:42 AM CDT 8:24 PM CDT
Astronomical Twilight 5:09 AM CDT 8:57 PM CDT
Moon 2:18 AM CDT (4/3) 12:41 PM CDT (4/3)
Length of Visible Light 13h 38m
Length of Day
12h 44m
Last Quarter, 44% of the Moon is Illuminated
Apr 3
Last Quarter
Apr 10
New
Apr 18
First Quarter
Apr 25
Full
May 2
Last Quarter

Weather History Calendar

Precipitation Actual month total 1.31 Average Month Total: 4.63
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
50 | 39 0.00
Average:
60 | 42 0.14
Scattered Clouds
Actual:
50 | 28 0.00
Average:
61 | 42 0.14
Scattered Clouds
Actual:
54 | 33 0.00
Average:
61 | 42 0.14
Scattered Clouds
Actual:
61 | 34 0.00
Average:
61 | 42 0.13
Scattered Clouds
Actual:
66 | 37 0.00
Average:
61 | 43 0.14
Partly Cloudy
Actual:
75 | 50 0.00
Average:
62 | 43 0.14
Rain
Actual:
79 | 51 0.03
Average:
62 | 43 0.15
Partly Cloudy
Actual:
79 | 61 0.03
Average:
62 | 43 0.16
Partly Cloudy
Actual:
77 | 64 0.00
Average:
63 | 43 0.16
Thunderstorm
Actual:
81 | 54 0.16
Average:
63 | 44 0.17
Rain
Actual:
56 | 39 0.34
Average:
63 | 44 0.16
Partly Cloudy
Actual:
45 | 36 0.00
Average:
64 | 44 0.16
Scattered Clouds
Actual:
58 | 33 0.00
Average:
64 | 45 0.15
Scattered Clouds
Actual:
76 | 45 0.00
Average:
64 | 45 0.15
Thunderstorm
Actual:
68 | 52 0.02
Average:
64 | 46 0.14
Thunderstorm
Actual:
50 | 44 0.11
Average:
64 | 46 0.14
Mostly Cloudy
Actual:
81 | 49 0.20
Average:
64 | 46 0.15
Thunderstorm
Actual:
74 | 41 0.09
Average:
64 | 46 0.15
Partly Cloudy
Actual:
49 | 36 0.07
Average:
64 | 47 0.15
Scattered Clouds
Actual:
53 | 31 0.03
Average:
64 | 47 0.15
Partly Cloudy
Actual:
60 | 39 0.01
Average:
65 | 47 0.15
Scattered Clouds
Actual:
69 | 39 0.01
Average:
65 | 47 0.15
Thunderstorm
Actual:
58 | 40 0.02
Average:
65 | 48 0.16
Rain
Actual:
50 | 37 0.05
Average:
66 | 48 0.17
Clear
Actual:
61 | 38 0.01
Average:
66 | 48 0.17
Partly Cloudy
Actual:
59 | 44 0.00
Average:
66 | 49 0.17
Rain
Actual:
53 | 48 0.03
Average:
67 | 49 0.18
Overcast
Actual:
57 | 51 0.08
Average:
68 | 50 0.18
Fog
Actual:
75 | 43 0.02
Average:
68 | 50 0.17
Scattered Clouds
Actual:
83 | 60 0.00
Average:
69 | 51 0.16
 

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
Apr high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 50 44 39 30 23 14 56 45 24 30.24 30.10 29.96 10 10 10 17 9 24 0.00  
2 50 39 28 25 18 7 75 49 20 30.36 30.30 30.25 10 10 10 12 4 - 0.00  
3 54 44 33 28 22 14 77 50 21 30.41 30.32 30.27 10 10 10 15 3 - 0.00  
4 61 47 34 50 22 12 77 44 15 30.26 30.17 30.05 10 10 10 14 3 - 0.00  
5 66 52 37 36 29 23 79 50 22 30.18 30.09 30.06 10 10 10 14 3 - 0.00  
6 75 62 50 38 33 23 56 38 14 30.05 29.93 29.73 10 10 10 29 12 40 0.00  
7 79 64 51 60 46 39 85 56 24 29.94 29.86 29.81 10 10 10 23 9 22 0.03 Rain
8 79 70 61 59 56 54 80 68 50 29.89 29.80 29.75 10 10 10 21 13 28 0.03  
9 77 70 64 59 58 57 78 68 50 29.89 29.86 29.83 10 10 10 26 10 37 0.00  
10 81 67 54 64 60 52 94 79 54 29.83 29.75 29.60 10 9 2 28 10 46 0.16 Rain , Thunderstorm
11 56 48 39 54 44 28 94 84 59 29.76 29.68 29.63 10 8 2 18 11 25 0.34 Rain
12 45 39 36 36 30 28 93 68 61 30.02 29.82 29.73 10 10 10 17 10 29 0.00  
13 58 46 33 36 32 28 87 65 31 30.07 30.00 29.92 10 10 10 16 8 - 0.00  
14 76 60 45 46 40 36 76 57 24 29.92 29.80 29.64 10 10 10 28 11 41 0.00  
15 68 60 52 59 51 45 94 72 50 29.91 29.82 29.75 10 10 6 21 12 26 0.02 Rain , Thunderstorm
16 50 48 44 49 44 41 93 87 79 30.17 30.06 29.90 10 8 2 16 9 23 0.11 Rain , Thunderstorm
17 81 64 49 64 51 44 94 80 57 30.14 30.00 29.69 10 7 0 23 8 34 0.20  
18 74 58 41 64 57 32 94 77 63 29.76 29.65 29.58 10 8 1 26 19 50 0.09 Rain , Thunderstorm
19 49 42 36 32 26 19 71 56 34 30.06 29.86 29.75 10 10 10 30 20 41 0.07  
20 53 42 31 31 26 16 88 58 22 30.35 30.22 30.07 10 10 10 12 5 - 0.03  
21 60 50 39 34 32 28 74 55 36 30.43 30.36 30.28 10 10 10 18 8 - 0.01  
22 69 54 39 41 35 32 85 59 26 30.29 30.20 30.03 10 10 10 18 4 - 0.01  
23 58 50 40 54 45 37 93 77 54 30.04 29.98 29.89 10 8 4 28 7 17 0.02 Rain , Thunderstorm
24 50 47 37 37 33 23 89 74 35 30.26 30.12 30.00 10 9 3 23 10 24 0.05 Rain
25 61 49 38 39 30 19 73 59 20 30.36 30.28 30.23 10 10 10 18 8 17 0.01  
26 59 50 44 45 39 34 78 68 54 30.39 30.32 30.28 10 10 10 15 7 - 0.00  
27 53 50 48 52 47 42 94 87 72 30.30 30.14 29.93 10 6 1 12 6 - 0.03 Rain
28 57 54 51 52 50 46 94 88 72 29.96 29.92 29.89 10 6 1 18 5 23 0.08  
29 75 59 43 58 49 41 94 81 50 29.95 29.90 29.82 10 6 0 21 4 17 0.02 Fog
30 83 71 60 59 54 48 80 66 30 29.96 29.87 29.82 10 10 10 18 10 28 0.00