Weather History for Alton, IL

Month of May, 2012 — View Current Weather Conditions
Month of May, 2012
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Daily Weekly Monthly Custom
  Max Avg Min Sum
Temperature
Max Temperature 93 °F 82 °F 64 °F
Mean Temperature 83 °F 70 °F 58 °F
Min Temperature 73 °F 58 °F 46 °F
Degree Days
Heating Degree Days (base 65) 8 1 0 32
Cooling Degree Days (base 65) 18 6 0 174
Growing Degree Days (base 50) 33 20 8 607
Dew Point
Dew Point 75 °F 54 °F 12 °F
Precipitation
Precipitation 0.08 in 0.01 in 0.00 in 0.17 in
Snowdepth - - - -
Wind
Wind 25 mph 5 mph 0 mph
Gust Wind 33 mph 22 mph 16 mph
Sea Level Pressure
Sea Level Pressure 30.22 in 29.97 in 29.62 in
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Date:
Astronomy
May. 03, 2012 Rise Set
Actual Time 5:59 AM CDT 7:55 PM CDT
Civil Twilight 5:30 AM CDT 8:24 PM CDT
Nautical Twilight 4:55 AM CDT 8:59 PM CDT
Astronomical Twilight 4:17 AM CDT 9:37 PM CDT
Moon 5:20 PM CDT (5/3) 4:02 AM CDT (5/3)
Length Of Visible Light 14h 53m
Length of Day
13h 55m
Waxing Gibbous, 91% of the Moon is Illuminated
May 3
Waxing Gibbous
May 5
Full
May 12
Last Quarter
May 20
New
May 28
First Quarter
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Monthly Calendar Weather History Overview
Print This Weather Calendar Precipitation: Actual month total 0.17 Average month total 5.07
« Previous Month « 2011 May 2012 2013 » Next Month »
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
1 Thunderstorm
Actual: 83 | 57
Precip: 0.02
Average: 70 | 52
Precip: 0.16
2 Scattered Clouds
Actual: 87 | 66
Precip: 0.02
Average: 70 | 52
Precip: 0.15
3 Scattered Clouds
Actual: 85 | 68
Precip: 0.01
Average: 71 | 53
Precip: 0.18
4 Thunderstorm
Actual: 82 | 64
Precip: 0.00
Average: 71 | 53
Precip: 0.17
5 Thunderstorm
Actual: 89 | 65
Precip: 0.00
Average: 72 | 53
Precip: 0.15
6 Fog
Actual: 89 | 69
Precip: 0.00
Average: 72 | 54
Precip: 0.18
7 Thunderstorm
Actual: 74 | 60
Precip: 0.02
Average: 72 | 54
Precip: 0.18
8 Partly Cloudy
Actual: 74 | 56
Precip: 0.00
Average: 72 | 54
Precip: 0.17
9 Scattered Clouds
Actual: 70 | 48
Precip: 0.00
Average: 73 | 54
Precip: 0.17
10 Scattered Clouds
Actual: 72 | 46
Precip: 0.00
Average: 73 | 55
Precip: 0.17
11 Scattered Clouds
Actual: 74 | 49
Precip: 0.00
Average: 73 | 55
Precip: 0.18
12 Scattered Clouds
Actual: 77 | 53
Precip: 0.00
Average: 73 | 55
Precip: 0.18
13 Clear
Actual: 77 | 54
Precip: 0.00
Average: 73 | 55
Precip: 0.18
14 Clear
Actual: 79 | 52
Precip: 0.00
Average: 74 | 56
Precip: 0.18
15 Clear
Actual: 82 | 49
Precip: 0.00
Average: 74 | 56
Precip: 0.18
16 Clear
Actual: 77 | 59
Precip: 0.00
Average: 74 | 56
Precip: 0.18
17 Clear
Actual: 79 | 46
Precip: 0.00
Average: 74 | 56
Precip: 0.17
18 Clear
Actual: 86 | 51
Precip: 0.00
Average: 74 | 56
Precip: 0.16
19 Scattered Clouds
Actual: 89 | 59
Precip: 0.00
Average: 74 | 56
Precip: 0.15
20 Thunderstorm
Actual: 90 | 64
Precip: 0.01
Average: 74 | 56
Precip: 0.15
21 Partly Cloudy
Actual: 72 | 55
Precip: 0.01
Average: 74 | 56
Precip: 0.16
22 Clear
Actual: 77 | 47
Precip: 0.00
Average: 74 | 57
Precip: 0.16
23 Scattered Clouds
Actual: 83 | 50
Precip: 0.00
Average: 74 | 57
Precip: 0.16
24 Scattered Clouds
Actual: 90 | 59
Precip: 0.00
Average: 74 | 57
Precip: 0.16
25 Partly Cloudy
Actual: 89 | 68
Precip: 0.00
Average: 74 | 58
Precip: 0.17
26 Scattered Clouds
Actual: 93 | 66
Precip: 0.00
Average: 74 | 58
Precip: 0.16
27 Clear
Actual: 92 | 70
Precip: 0.00
Average: 74 | 58
Precip: 0.15
28 Thunderstorm
Actual: 93 | 73
Precip: 0.00
Average: 74 | 58
Precip: 0.14
29 Thunderstorm
Actual: 85 | 65
Precip: 0.08
Average: 74 | 59
Precip: 0.14
30 Thunderstorm
Actual: 80 | 63
Precip: 0.00
Average: 74 | 59
Precip: 0.14
31 Rain
Actual: 64 | 51
Precip: 0.00
Average: 74 | 59
Precip: 0.14
 
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
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 83 70 57 68 61 57 100 84 45 29.99 29.91 29.81 10 6 0 17 6 20 0.02 Fog , Rain , Thunderstorm
2 87 76 66 68 63 59 86 69 40 29.95 29.88 29.83 10 10 10 17 11 28 0.02  
3 85 76 68 70 65 64 88 79 55 30.03 29.95 29.90 10 10 10 21 9 25 0.01  
4 82 72 64 73 67 63 96 89 70 30.07 29.93 29.86 10 9 3 17 5 29 0.00 Rain , Thunderstorm
5 89 77 65 75 68 64 97 84 49 29.93 29.89 29.86 10 10 7 12 5 - 0.00 Thunderstorm
6 89 78 69 73 69 63 100 80 43 29.92 29.88 29.81 10 7 0 13 5 - 0.00 Fog
7 74 67 60 68 64 59 100 90 72 29.94 29.88 29.81 10 8 4 17 7 20 0.02 Rain , Thunderstorm
8 74 65 56 60 49 37 96 66 27 30.00 29.95 29.91 10 10 10 17 6 28 0.00  
9 70 58 48 49 46 39 90 69 33 30.01 29.97 29.93 10 10 10 17 6 21 0.00  
10 72 58 46 52 48 41 100 80 33 30.04 29.99 29.96 10 10 10 7 2 - 0.00  
11 74 61 49 55 48 41 94 69 33 30.16 30.10 30.03 10 10 10 12 3 - 0.00  
12 77 65 53 57 52 43 97 77 29 30.22 30.17 30.15 10 10 7 8 1 - 0.00  
13 77 66 54 54 46 33 92 63 24 30.19 30.14 30.08 10 10 10 14 4 - 0.00  
14 79 65 52 46 38 30 60 43 17 30.13 30.08 30.03 10 10 10 14 2 - 0.00  
15 82 64 49 54 45 36 88 58 20 30.07 30.02 29.96 10 10 3 14 2 - 0.00  
16 77 68 59 55 46 34 78 54 21 30.07 30.01 29.96 10 10 10 17 6 - 0.00  
17 79 62 46 47 36 29 79 47 23 30.11 30.08 30.02 10 10 3 9 2 - 0.00  
18 86 68 51 61 50 44 88 65 25 30.05 30.00 29.92 10 10 3 14 3 - 0.00  
19 89 74 59 63 57 52 93 66 29 30.04 29.99 29.96 10 10 5 16 5 - 0.00  
20 90 76 64 66 60 52 94 70 31 30.10 30.05 29.99 10 10 7 12 5 20 0.01 Rain , Thunderstorm
21 72 64 55 66 53 46 95 71 41 30.18 30.12 30.09 10 10 5 18 7 17 0.01  
22 77 62 47 52 47 37 100 73 25 30.10 30.04 29.91 10 9 5 14 1 - 0.00  
23 83 66 50 54 48 43 96 67 25 29.92 29.84 29.73 10 10 10 15 3 21 0.00  
24 90 74 59 57 51 46 74 54 24 29.78 29.74 29.62 10 10 7 25 9 33 0.00  
25 89 78 68 68 64 57 83 64 46 30.01 29.90 29.78 10 10 7 15 6 - 0.00  
26 93 80 66 70 65 61 94 70 36 30.06 30.01 29.96 10 10 10 16 4 - 0.00  
27 92 80 70 64 60 54 76 54 28 30.01 29.95 29.88 10 10 7 16 7 18 0.00  
28 93 83 73 63 59 12 69 51 6 29.94 29.85 29.78 10 10 7 21 9 28 0.00 Thunderstorm
29 85 74 65 66 60 46 93 68 29 29.93 29.88 29.78 10 10 2 10 4 26 0.08 Rain , Thunderstorm
30 80 72 63 66 52 43 89 61 28 29.99 29.92 29.86 10 10 10 14 2 - 0.00 Thunderstorm
31 64 58 51 59 49 45 96 70 57 29.91 29.85 29.78 10 9 3 13 5 17 0.00 Rain
Comma Delimited File