Illinois State Water Survey - University of Illinois at Urbana-Champaign

State Climatologist Office for Illinois

Wind Roses and Wind Frequency Tables for Illinois

Dr. Jim Angel, State Climatologist

These data are compiled from the available sites that have long-term wind statistics. The averaging period is 1961 to 1990, rather than 1971-2000, due to limitations in the software.

Note: wind direction is reported as the direction from which the winds are blowing. For example, a "south wind" means the wind is blowing from the south to the north.

Chicago, IL

Plot: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Frequency: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual

Rockford, IL

Plot: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Frequency: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual

Springfield, IL

Plot: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Frequency: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual

Evansville, IN (for Southeastern IL)

Plot: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Frequency: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual

St. Louis, MO (for Southwestern IL)

Plot: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Frequency: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual

Illinois State Water Survey

2204 Griffith Dr
Champaign, IL 61820-7463
217-333-0729
jimangel@illinois.edu

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