Decatur Climatology
May 2003
Date
High
Low
Precip
Mo Total
Notes
1
74
58
.23
.23
2
66
46
3
69
38
Sunny
4
55
48
1.53"
1.76"
Rainy & Cold - New record rainfall
5
79
53
.07
1.83"
Nice
6
77
53
.41
2.24"
Severe Storms
7
73
56
8
64
51
.33
2.57"
Severe Storms
9
87
63
.20
2.77"
Severe Storms
10
79
61
2.05
4.82"
AM & PM Severe Storms
11
71
50
.01
4.83"
Cloudy & Windy
12
69
50
Cloudy
13
72
46
14
76
57
.16
4.99"
Hail, Tornadoes E. Central Ill.
15
69
53
.16
5.15"
Early Showers, Partly Sunny
16
69
52
Trace
17
70
55
.02
5.17
Clouds, Light Rain
18
75
62
Clouds
19
75
65
.06
5.23
20
69
53
.20
5.43
21
66
46
Early Clouds, Becoming Sunny
22
69
45
Mostly Sunny
23
67
49
24
71
43
.04
5.47
Sun
25
72
51
26
72
49
Sun
27
78
48
Sunny & Nice
28
75
55
.07
5.54
Severe, With Tornadoes
29
76
52
Breezy & Nice
30
75
49
Trace
Severe Storms
31
72
57