| New Years Day Weather for Northern Illinois: Statistics
for Chicago and Rockford
Rockford:
The following statistics comprises 99 years of data.
Data collection for Rockford was at the Greater Rockford Airport.
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Frequency distribution of high temperatures for Rockford.
By looking at the graph, high temperatures in the 30 to 39 degree range occur
the majority of the time over the 98 years. The normal high temperature at Rockford
is 28 degrees, which falls just below that range. Temperatures also do sometimes occur
in the 20 to 29 degree range. Several times the high temperature only climbed into the
teens and single digits. On the other hand, Rockford has also seen temperatures climb
as high as the 40s. In fact the record high temperature for Rockford on New Years Day is
49 degrees set in 1916!
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Frequency distribution of low temperatures for Rockford.
By looking at the graph, for the majority of the time, low temperatures occur in the
20 to 29 degree range. The normal low temperature at Rockford is 12 degrees which falls
just below that range. Temperatures also often occur in the teens and single digits. Thirteen times Rockford has seen low temperatures as high as 30 degrees and above. On the other hand, several times low temperatures fell below zero and two times at 10 below zero and below. In fact the record low temperature for Rockford on New Years Day is 13 below set in 1968 and 1924! |
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Frequency distribution of precipitation and snowfall for Rockford.
By looking at the graph, when there is precipitation, it most often occurs in the
trace category (less than 0.01") and the 0.02 to 0.25 inch range. In the past, daily
precipitation amounts on the holiday have ranged from 0.01 inches to over an inch as
the greatest precipitation total for the holiday is 1.37 inches set in 1948. However
the majority of the time, precipitation does not fall on New Year's Day.
Also by looking at the graph, when there is snowfall, it most often occurs in the trace
category (less than 0.1") then the 0.1 to 0.9 inch category. In the past,
snowfall amounts have ranged from 1.0 inch to greater than 5.0 inches as the greatest
snowfall total for the holiday is 9.0 inches set in 1942! Like precipitation, the
majority of the time, snow does not fall on New Years Day.
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