Memorial Day Weather for Northern Illinois:   Statistics for Chicago and Rockford

Rockford:
The following statistics comprises 107 years of data. Data collection for Rockford was at the Greater Rockford Airport. Data is missing from 1920 and 1946. 

High temperatures at Rockford on Memorial Day

Frequency distribution of high temperatures for Rockford. This dataset shows that the most frequent range of high temperatures on Memorial Day is in the 70 to 79 degree range. Since Memorial Day isn’t on a set day, there is no normal high temperature. The highest temperature on Memorial Day is 96 degrees which occurred on May 30th in 1934. The lowest high temperature on Memorial Day is 47 degrees, which occurred on May 28th, 1984. Last year, on May 27th, 2013 the high temperature was 61.

Low Temperatures for Rockford on Memorial Day

Frequency distribution of low temperatures for Rockford. This dataset shows that the most frequent range of low temperatures on Memorial Day is in the 50 to 59 degree range. Since Memorial Day isn’t on a set day, there is no normal low temperature. The lowest temperature for Rockford on Memorial Day is 35, which occurred on May 30th in 1924 as well as May 25 in 1992.  The highest low temperature on Memorial Day is 73 on May 30th in 1953. The low temperature last year on May 27th, 2013 was 52 degrees.

Precipitation at Rockford on Memorial Day

Frequency distribution of precipitation for Rockford. This dataset shows that the most frequent amount of precipitation recorded on Memorial Day is 0.00”, which accounts for 51% of the days in the dataset. The next most frequent range is the 0.02” to 0.25” range. The highest amount of precipitation on Memorial Day occurred on May 30th in 1916 when 1.65” of precipitation fell. There have been three instances where over an inch of precipitation fell on Memorial Day.  Last year on May 27th, 2013 a 0.02" of precipitation fell.

 ADDITIONAL MEMORIAL DAY CLIMATE DATA     ( * MEANS LAST OCCURRENCE)

MAX TEMP
WARMEST

MIN TEMP
WARMEST
PCPN
WETTEST
96
May 30, 1934
73
May 30, 1953 
1.65
May 30, 1916
93
May 30, 1921
69
May 28, 2012 * 
1.32
May 31, 2004
92
May 30, 1937 *
68
May 30, 1929
1.09
May 28, 1984
91
May 29, 2006 *
67
May 30, 1944 *
0.85
May 30, 1915 
90
May 28, 2012 *
65
May 29, 1978 * 
0.60
May 30, 1926
89
May 30, 1994 *
64
May 30, 2011 * 
0.42
May 26, 2008
88
May 30, 2011 *
63
May 30, 1956 * 
0.41
May 30, 1957
87
May 30, 1925
62
May 31, 2010 *
0.39
May 30, 1958
86
May 30, 1962 *
61
May 29, 1972
0.32
May 31, 1982
85
May 29, 1989
60
May 30, 1977 
0.31
May 27, 1996
 
MAX TEMP
COLDEST
MIN TEMP
COLDEST
PCPN
DRIEST
47
May 28, 1984
35
May 25, 1992 *
0.00
May 30, 2011 *
52
May 25, 1992
36
May 30, 1930
T
May 28, 2012 *
54
May 27, 1996 
38
May 28, 1984
0.01
May 28, 2007 *
55
May 30, 1915 *
39
May 30, 1965 * 
0.02
May 27, 2013
56
May 30, 1983 
40
May 30, 1966 * 
0.03
May 25, 2009 * 
58
May 26, 1997  
41
May 31, 1993 *
0.05
May 27, 1985 * 
61
May 27, 2013
42
May 30, 1947 * 
0.07
May 29, 1972 * 
63
May 30, 1967
43
May 30, 1983 *
0.08
May 29, 2006 *
64
May 25, 1987 *
44
May 30, 1928 
0.10
May 30, 1931  
65
May 30, 1947 *
45
April 26, 1997 *
0.11
May 29, 1989

Updated 5/15/2013 ACS

 


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