NCDC / Clim. Monitoring / Climate-2005 / Nov / U.S. Regional Drought / Help

Climate of 2005 - November
Illinois Drought

National Climatic Data Center, 9 December 2005

The National Weather Service office in Chicago reported the driest spring-summer-fall (March-November) on record this year for both Chicago (in northeast Illinois, Climate Division 2) and Rockford (in northwest Illinois, Climate Division 1) (map of climate divisions).

Statewide Precipitation Ranks
for Illinois , 2004-2005
Period	Rank
Nov	40^th wettest ( 72^nd driest)
Oct-Nov	34^th driest
Sep-Nov	46^th driest
Aug-Nov	47^th driest
Jul-Nov	38^th driest
Jun-Nov	24^th driest
May-Nov	13^th driest
Apr-Nov	9^th driest
Mar-Nov	6^th driest
Feb-Nov	5^th driest
Jan-Nov	16^th driest
Dec-Nov	14^th driest

Graphic showing precipitation departures, January 1998 - present

Graphic showing Palmer Z Index, January 1998 - present

Graphic showing precipitation, November 1895-2005

Graphic showing Palmer Hydrological Drought Index, January 1900 - November 2005

NCDC / Clim. Monitoring / Climate-2005 / Nov / U.S. Regional Drought / Help

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