Weather History for Decatur, IL

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Month of May, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 81 °F 63 °F
Mean Temperature 84 °F 69 °F 57 °F
Min Temperature 75 °F 56 °F 41 °F
Degree Days  
Heating Degree Days (base 65) 8 1 0 46
Cooling Degree Days (base 65) 19 5 0 166
Growing Degree Days (base 50) 33 19 6 582
Dew Point  
Dew Point 71 °F 53 °F 29 °F
Precipitation  
Precipitation 0.50 in 0.05 in 0.00 in 1.68 in
Snowdepth - - - -
Wind  
Wind 35 mph 9 mph 0 mph
Gust Wind 43 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.22 in 29.96 in 29.62 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 10, 2012 Rise Set
Actual Time 5:45 AM CDT 7:59 PM CDT
Civil Twilight 5:14 AM CDT 8:29 PM CDT
Nautical Twilight 4:37 AM CDT 9:06 PM CDT
Astronomical Twilight 3:57 AM CDT 9:47 PM CDT
Moon No Moon Rise 10:09 AM CDT (5/10)
Length of Visible Light 15h 14m
Length of Day
14h 14m
Waning Gibbous, 73% of the Moon is Illuminated
May 10
Waning Gibbous
May 12
Last Quarter
May 20
New
May 28
First Quarter
Jun 4
Full

Weather History Calendar

Precipitation Actual month total 1.68 Normal Month Total: 4.29
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
79 | 50 0.24
Average:
70 | 47 0.16
Scattered Clouds
Actual:
84 | 65 0.00
Average:
70 | 47 0.16
Clear
Actual:
85 | 67 0.00
Average:
70 | 48 0.16
Thunderstorm
Actual:
80 | 63 0.19
Average:
71 | 48 0.16
Clear
Actual:
88 | 59 0.00
Average:
71 | 48 0.17
Thunderstorm
Actual:
89 | 65 0.00
Average:
71 | 48 0.15
Thunderstorm
Actual:
76 | 58 0.50
Average:
72 | 49 0.15
Scattered Clouds
Actual:
73 | 55 0.00
Average:
72 | 49 0.15
Scattered Clouds
Actual:
69 | 49 0.00
Average:
72 | 49 0.14
Clear
Actual:
71 | 44 0.00
Average:
73 | 50 0.14
Clear
Actual:
75 | 45 0.00
Average:
73 | 50 0.14
Clear
Actual:
75 | 54 0.00
Average:
73 | 50 0.14
Clear
Actual:
78 | 49 0.00
Average:
74 | 50 0.14
Clear
Actual:
81 | 51 0.00
Average:
74 | 51 0.14
Clear
Actual:
82 | 48 0.00
Average:
74 | 51 0.15
Clear
Actual:
76 | 46 0.00
Average:
74 | 51 0.14
Clear
Actual:
79 | 41 0.00
Average:
75 | 52 0.14
Clear
Actual:
85 | 46 0.00
Average:
75 | 52 0.14
Clear
Actual:
91 | 60 0.00
Average:
75 | 52 0.15
Thunderstorm
Actual:
91 | 65 0.23
Average:
75 | 53 0.14
Partly Cloudy
Actual:
69 | 49 0.00
Average:
76 | 53 0.14
Clear
Actual:
77 | 49 0.00
Average:
76 | 53 0.14
Clear
Actual:
82 | 46 0.00
Average:
76 | 54 0.14
Clear
Actual:
89 | 63 0.00
Average:
76 | 54 0.14
Scattered Clouds
Actual:
89 | 72 0.00
Average:
77 | 54 0.12
Scattered Clouds
Actual:
92 | 68 0.00
Average:
77 | 55 0.12
Clear
Actual:
93 | 71 0.00
Average:
77 | 55 0.11
Thunderstorm
Actual:
93 | 75 0.00
Average:
78 | 55 0.10
Thunderstorm
Actual:
86 | 63 0.10
Average:
78 | 56 0.10
Clear
Actual:
79 | 52 0.00
Average:
78 | 56 0.11
Rain
Actual:
63 | 50 0.42
Average:
78 | 56 0.11
 

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 79 65 50 68 58 51 100 79 58 30.01 29.92 29.81 10 6 1 10 9 15 0.24 Rain , Thunderstorm
2 84 75 65 67 64 61 87 68 48 29.98 29.89 29.82 10 10 10 22 11 28 0.00  
3 85 76 67 69 65 63 84 70 55 30.00 29.94 29.84 10 10 10 29 13 38 0.00  
4 80 72 63 68 64 60 93 78 62 30.00 29.92 29.85 10 10 7 23 6 29 0.19 Rain , Thunderstorm
5 88 74 59 66 62 57 93 68 43 29.94 29.91 29.87 10 9 5 13 5 25 0.00  
6 89 77 65 71 67 63 93 72 50 29.94 29.88 29.80 10 9 3 15 8 20 0.00 Thunderstorm
7 76 67 58 70 64 57 100 85 69 29.91 29.85 29.76 10 9 2 18 6 25 0.50 Rain , Thunderstorm
8 73 64 55 58 47 40 93 62 31 29.96 29.92 29.88 10 10 6 21 9 26 0.00  
9 69 59 49 48 45 42 80 61 42 29.97 29.94 29.90 10 10 10 20 10 24 0.00  
10 71 58 44 45 41 36 93 61 28 30.04 30.00 29.97 10 10 6 9 2 21 0.00  
11 75 60 45 47 44 40 83 58 33 30.16 30.12 30.05 10 10 10 18 6 22 0.00  
12 75 65 54 53 48 45 83 59 35 30.22 30.19 30.15 10 10 10 16 5 20 0.00  
13 78 64 49 52 44 33 83 59 34 30.21 30.14 30.07 10 10 10 16 9 21 0.00  
14 81 66 51 45 38 30 59 41 23 30.11 30.06 30.00 10 10 10 14 6 18 0.00  
15 82 65 48 50 45 40 80 51 22 30.04 29.98 29.91 10 10 10 16 7 21 0.00  
16 76 61 46 52 41 29 75 50 24 30.12 30.01 29.91 10 10 10 25 14 29 0.00  
17 79 60 41 40 35 30 67 43 19 30.14 30.08 30.01 10 10 10 15 8 23 0.00  
18 85 66 46 54 47 38 71 48 25 30.07 30.01 29.95 10 10 10 14 6 20 0.00  
19 91 76 60 62 57 52 84 56 27 30.04 30.01 29.97 10 10 9 17 8 22 0.00  
20 91 78 65 63 60 54 87 58 29 30.07 30.03 29.96 10 10 6 28 11 40 0.23 Rain , Thunderstorm
21 69 59 49 63 53 44 93 73 53 30.14 30.10 30.05 10 10 10 18 11 24 0.00  
22 77 63 49 45 42 39 77 53 28 30.10 30.01 29.90 10 10 10 15 7 22 0.00  
23 82 64 46 49 44 41 82 54 25 29.92 29.84 29.76 10 10 10 17 7 21 0.00  
24 89 76 63 61 56 50 67 52 36 29.79 29.72 29.62 10 10 10 35 17 43 0.00  
25 89 81 72 68 62 51 73 53 32 30.01 29.93 29.76 10 10 10 17 7 22 0.00  
26 92 80 68 70 67 64 84 66 47 30.07 30.02 29.96 10 10 8 18 8 23 0.00  
27 93 82 71 65 62 58 73 52 30 30.01 29.94 29.87 10 10 10 16 10 21 0.00  
28 93 84 75 65 61 55 69 50 30 29.88 29.82 29.75 10 10 10 25 13 40 0.00 Thunderstorm
29 86 75 63 66 56 46 87 57 27 29.89 29.85 29.78 10 10 6 21 7 25 0.10 Rain , Thunderstorm
30 79 66 52 51 45 42 67 48 29 29.96 29.91 29.88 10 10 10 20 9 26 0.00  
31 63 57 50 52 49 45 96 76 56 29.93 29.84 29.77 10 9 3 22 14 30 0.42 Rain