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:

  • provide evidence of climate change & variability through graphical data analyses,
  • 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.


Persistent drought in southern Wisconsin dominated southern counties in Wisconsin throughout the entire growing season. Northwestern counties also intensified moisture deficits in late summer. In early September, the Wisconsin map for the U.S. Drought Monitor showed a total of 21% of the state experiencing moderate or severe drought conditions.

Following below normal statewide precipitation beginning in Autumn 2020, southern Wisconsin experienced Spring 2021 deficits of 4-7 inches. Conditions worsened during the entire summer, with final growing season deficits of 5-10 inches common.Topsoil and subsoil moisture shortages ranged from about 22% in the Southwest to 70% in the Southeast.


The statewide average precipitation for the 2019 calendar year was 44.55 inches, breaking the previous annual statewide record of 41.28 inches (for a 12-month period) set in 1938.  The statewide precipitation records extend back to 1895.

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

August 2019: Second warmest August and June-August on record for globe - NOAA National Centers for Enviromental Information

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