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

Statewide 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

Statewide Average Temperature

December 2017 - February 2018

0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F

Illinois

TempAverage Temperature: 28.6°F

Anomaly: 0.5°F

Rank: 61st Coldest

Mean: 28.0°F

Text Labels

Download: CSV JSON XML

December 2017 - February 2018 Illinois Statewide Average Temperature
State	Value	Anomaly	Rank 130 Years	1901-2000 Mean
Illinois	28.6°F	0.5°F	61	28.0°F

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Mapping, published March 2025, retrieved on March 29, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/mapping

Climate at a Glance Statewide Mapping

Statewide Mapping

Citing This Page

Success

Error