Valentines 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.

Graph of High Temperatures on Valentine's Day at Rockford

Frequency distribution of high temperatures for Rockford. This dataset shows that the most frequent range of high temperatures on Valentine’s Day is in the 30 to 39 degree range. The normal high temperature at Rockford is 34 degrees, which falls right in that range. The record high temperature on Valentine's Day is 59 degrees set in 1918 and 2006. The record lowest high temperature on Valentine’s Day is 10 degrees, which occurred in 1943. In 2014, the high temperature was 19 degrees.

Graph of Low Temperatures on Valentine's Day in Rockford

Frequency distribution of low temperatures for Rockford. This dataset shows that the most frequent range of low temperatures on Valentine’s Day is tied in the 10 to 19 degree range and the 20 to 29 degree range. The normal low temperature at Rockford is 17 degrees which is in this range. The record low temperature for Rockford on Valentine's Day is 8 below set in 1916. The record highest low on Valentine’s Day is 34 in 1928 and 2005. The low temperature in 2014 was 7 degrees.

Graph of Precipitation on Valentine's Day at Rockford

Frequency distribution of precipitation for Rockford. This dataset shows that the most frequent amount of precipitation recorded on Valentine’s Day is 0.00”, which accounts for 59% of the days in the dataset. The next most frequent range is the 0.02” to 0.25” range followed by a Trace. The highest amount of precipitation on Valentine’s Day occurred in 1906 when 0.90” of precipitation fell. There has never been an instance of over an inch of precipitation on Valentine’s Day. There was no precipitation in 2014.

Graph of Snowfall on Valentine's Day in Rockford

Frequency distribution of snowfall for Rockford. This dataset shows that the most frequent amount of snowfall recorded on Valentine’s Day is 0.0”, which accounts for 67% of the days in the dataset.  The highest amount of snowfall recorded on Valentine’s Day occurred in 1990 when 6.0” of snow fell. In 2014, no snow fell.

 

ADDITIONAL VALENTINE'S DAY CLIMATE DATA     ( * MEANS LAST OCCURRENCE)

MAX TEMP
WARMEST

MIN TEMP
WARMEST
PCPN
WETTEST
SNOW
MOST
59
2006 *
34
2005 *
0.90
1906
6.0
1990
58
1934
33
1954 * 
0.67
1919
5.0
1906
57
1954
32
1998 *
0.61
1911
3.5
1927
55
1984
31
2013 *
0.39
1927
49
1961 * 
30
1945 *
0.37
1990
47
1913
29
2012 * 
0.30
1909
46
1999 *
28
1962 *
 
45
2002 *
27
2011 * 
 
44
2011 *
26
1987 * 
 
43
1945 *
25
2006 *
 
 
MAX TEMP
COLDEST
MIN TEMP
COLDEST
PCPN
DRIEST
SNOW
LEAST
10
1943
-8
1916
0.00
2014 *
0.0
2014 *
14
1923
-6
1943 *
T
2013 *
T
2008 * 
17
2007 * 
-3
1920
0.01
1996 *
0.1
2012 *
19
2014 *
-2
1936 
0.02
1972
20
1920 
-1
1963 * 
0.03
1908
21
1914
1
1985
 
22
1970 *
2
2010 *
 
23
1978 * 
3
1995 * 
 
24
1971 * 
4
2007 *
 
25
1986
5
1978 *
 

ACS 2/13/2015


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