7th-warmest November on record
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[December 03, 2009]
CHAMPAIGN -- Based on
preliminary data in Illinois, the statewide average temperature for
November was 46.9 degrees, 5.1 degrees above normal. This was the
seventh-warmest November on record for the state, based on data
going back to 1895, according to Jim Angel, state climatologist, of
the Illinois State Water Survey.
The warmest November on record is a tie between 1931 and 2001, both
with 49.8 degrees. Parts of northern Illinois reported light
snowfall on Thanksgiving Day, the first measurable snowfall of the
season. Roscoe, just north of Rockford, reported the highest amount
around the state at 1.5 inches.
The statewide precipitation for
November was 2.6 inches, 0.7 inches below normal. While rainfall
totals of 1.5 to 3 inches were common in far southern and northern
Illinois, the heaviest rains of 3 to 4 inches fell across central
Illinois. Perry, in west-central Illinois, reported a monthly total
of 5.47 inches, the highest in the state.
"It is very unusual to have two back-to-back exceptionally wet
years like this. The January-November precipitation total for this
year was 46.2 inches, the third-wettest on record. Last
January-November was 46.1 inches, the fourth-wettest on record. In
fact, 2009 is already the 10th-wettest year on record, even if no
precipitation falls in December," Angel said.
The Illinois State Water Survey at the University of Illinois at
Urbana-Champaign, under the Institute of Natural Resource
Sustainability, is the primary agency in Illinois concerned with
water and atmospheric resources.
[Text from file received from
State Water Survey]