Climate at a Glance | Divisional Mapping | National Centers for Environmental Information (NCEI)

Divisional Mapping

State:

Parameter:

Year:

Month:

Time Scale:

Please note, Degree Days and Palmer Indices are not available for Alaska or Hawaii. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales. Data are available for bulk download.

ValueAnomalyRankMean

Divisional Palmer Z-Index

September - November 1959

-4-3-2-11234

Illinois (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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September - November 1959 Illinois Divisional Palmer Z-Index
Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Northwest	1.83	1.75	116	0.09
2. Northeast	0.94	0.90	92	0.03
3. West	0.67	0.66	92	0.01
4. Central	0.40	0.34	79	0.06
5. East	0.51	0.49	86	0.02
6. West Southwest	0.21	0.11	75	0.10
7. East Southeast	-0.27	-0.33	55	0.07
8. Southwest	0.24	0.20	72	0.04
9. Southeast	1.26	1.22	106	0.04

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published June 2025, retrieved on June 15, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping

Climate at a Glance Divisional Mapping

Divisional Mapping

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