St. Patricks Day Climate Information for Rockford

St. Patrick's Day Weather for Northern Illinois: Statistics for Chicago and Rockford

Rockford:
The following statistics comprises 105 years of data. Data collection for Rockford has been at the Greater Rockford Airport

Graph of high temperatures at Rockford on St. Patrick's Day

Frequency distribution of high temperatures for Rockford. This dataset shows that the most frequent range of high temperatures on St. Patrick’s Day is in the 30 to 39 degree range, followed very closely by the 40-49 degree range. The normal high temperature at Rockford is 46 degrees, which falls in the 2^nd most frequent range. The record high temperature on St. Patrick’s Day is 82 degrees set in 2012. The record lowest high temperature on St. Patrick’s Day is 12 degrees, which occurred in 1941.

Graph of Low Temperatures in Rockford on St. Patrick's Day

Frequency distribution of low temperatures for Rockford. This dataset shows that the most frequent range of low temperatures on St. Patrick’s Day is in the 20 to 29 degree range. The normal low temperature at Rockford is 27 degrees which falls in the most frequent range. The record low temperature for Rockford on St. Patrick’s Day is -3, which was set in 1941. The record highest low on St. Patrick’s Day is 45 in 2003. In 2012, the low temperature was 57 degrees.

Precipitation at Rockford on St Patricks Day

Frequency distribution of precipitation for Rockford. This dataset shows that the most frequent amount of precipitation recorded on St. Patrick’s Day is 0.00”, which accounts for 69% 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 St. Patrick’s Day occurred in 1919 when 0.62” of precipitation fell. There has never been an instance where over an inch of precipitation fell on St. Patrick’s Day. There was 0.05" of rain in 2012.

Graph of Snowfall on St. Patricks Day in Rockford

Frequency distribution of snowfall for Rockford. This dataset shows that the most frequent amount of snowfall recorded on St. Patrick’s Day is 0.0”, which accounts for 80% of the days in the dataset. The next most frequent range the 0.1” to 0.9” range. The highest amount of snowfall recorded on St. Patrick’s Day occurred in 1984 when 4.0” of snow fell. In 2012, no snow fell.

ADDITIONAL ST. PATRICK'S DAY CLIMATE DATA ( * MEANS LAST OCCURRENCE)

MAX TEMP WARMEST	MIN TEMP WARMEST	PCPN WETTEST	SNOW MOST
82 2012	57 2012	0.62 1919	4.1 1984
75 2009	49 1894	0.45 1934	3.7 1904, 1965
74 2003	44 1927	0.42 1991	2.7 1993
73 1966	43 1945	0.35 1965
70 1945	42 1946 *	0.31 1984
67 2011 *	41 2009 *	0.29 1998
66 1930	40 2003 *	0.24 1927
64 2010*	39 1919	0.19 1979
63 1969 *	38 1918 *	0.15 1989
62 1968	37 1942 *	0.14 2004 *

MAX TEMP COLDEST	MIN TEMP COLDEST	PCPN DRIEST	SNOW LEAST
12 1941	-3 1941	0.00 2011 *	0.0 2012 *
18 1906	8 1939 *	T 2002 *	T 2002 *
22 1939	9 1923 *	0.01 1966	0.1 1913
24 1993 *	10 1959	0.02 1980 *
25 1959	11 1993 *	0.04 2005 *
28 1967	12 1967 *	0.05 2012 *
30 1984	13 1949	0.06 2008 *
31 1989 *	15 1978 *	0.09 1966 *
32 1955 *	16 1970 *	0.12 1977 *
33 2005 *	17 1960

ACS 3/22/2011

National Weather Service Weather Forecast Office