Wisconsin State Climatology Office
 John Young, Director & Professor Emeritus
Your climate information resource for Wisconsin
Wisconsin State Climatology Office

Wisconsin Climate Watch

Wisconsin Seasons

Past  Wisconsin Climate

Other Climate Data Links & Maps

Wisconsin Climate Impacts

Climate Change

Climate News

Climate Education & Outreach

Who We Are

SCO Site Map

The Wisconsin State Climatology Office is affiliated  with the Department of Atmospheric and Oceanic Sciences at the University of Wisconsin-Madison.

Our mission is to:

  • support climate monitoring through graphical analyses of climate data,
  • provide climate information to Wisconsin residents, climate scientists and government agencies,
  • develop "value-added" products for users and impact applications,
  • conduct applied climate research.

Detailed annual summaries are found on the AASC web site.

This office is a partner with Midwestern Regional Climate Center in providing climate services to the public.
Collaborations with Wisconsin Initiative on Climate Change Impacts (WICCI) research on climate impacts are now underway.

If you would like assistance finding the climate data you want, visit our Guide to Wisconsin Weather and Climate Data.
The office staff is currently an all-volunteer operation.
Short initial inquiries for data or staff assistance staff are free. More substantial efforts are covered by our Service Charge statement.

Lake Ice Closings: Thin & Erratic December 23 Bulletin

Lakes Mendota and Mendota initially were declared closed last week, with minimal ice thickness. Mendota recently reopened and may not close until the New Year. Monona’s ice may not survive our predicted lingering above normal air temperatures, and so would also have to experience a “second closing” in January.


Southern Wisconsin experienced several extreme rain events in August 2018, extending a trend attributed to increased humidity and altered wind patterns associated with climate change.

Additional information can be found on the Climate Watch Page.

Wisconsin Climate Services Summit Meeting Held 6-7 June 2018

A first-time Wisconsin meeting of State, Federal, University, & Tribal providers and users.
An information & networking opportunity for 49 invited representatives from 21 organizations.
Held at Pyle Center on Lake Mendota at University of Wisconsin-Madison

Local Co-Host: SCO Director Prof. John A. Young jayoung@wisc.edu
Local Co-Organizer: Rebecca Power, U.W. Extension, North Central Region Water Network

Additional information can be found on the Climate Watch Page.

Climate Change

Global Climate Variability & Warming Trend: 2018 Update -- A set of slides from Jan 2018 NOAA/NASA briefing on "Annual Global Analysis for 2017"

The Fourth National Climate Assessment (NCA4) "Climate Science Special Report" , the most up to date and "final form" for Volume 1 of NCA4.
Report of the National Climate Assessment for the Midwest

IPCC Report: Climate Change 2013  - Six years of new observations and analyses in this most authoritative scientific report. Physical Science Conclusions released in September 2013.  

The American Meteorological Society (AMS) posted an Information Statement on Climate Change on 20 Aug 2012.

Climate Literacy -- Understanding the essential principles.

U.S. Global Change Research Program -- Impacts and regional issues

For additional climate-change information, see our Climate Change page.

To Contact Us: Wisconsin State Climatology Office
1225 W. Dayton St.
Madison, WI 53706
Phone: 608–263–2374
Fax: 608–262–0166
Email: STCLIM@aos.wisc.edu