Prairie Research Institute

blog posts

• Warm Soils across Illinois in July

  Jul 18, 2017 3:00 pm

  Soil temperatures at depths of 4 inches under bare soil averaged 79.9 degrees on July 15, 2.1 degrees above the long-term average.

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  Warm October for Illinois

  Nov 2, 2016 4:45 pm

  The statewide average temperature for October was 59.8 degrees, 5.4 degrees above normal, and the on record, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

• Warm October across Illinois Ranks among Top Ten

  Nov 7, 2007 7:30 pm

  "With temperatures in Illinois averaging 59.5 degrees, 4.8 degrees above normal, October was the 9th warmest since 1895," says State Climatologist Jim Angel of the Illinois State Water Survey (http://www.sws.uiuc.edu), a division of the Illinois Department of Natural Resources.

• Warm November in Illinois

  Dec 3, 2010 12:30 am

  The statewide average rainfall for October was 1.4 inches, 1.5 inches below normal. This ranks as the 20th driest October on record, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

• Warmest Year to Date for the Midwest, Near Normal August

  Sep 11, 2012 7:45 pm

  August 2012 brought relief to much of the Midwest region in the form of near-normal temperatures and much needed rainfall.  No state in the nine-state Midwest region ranked in the top 40 warmest Augusts on record, according to the Midwestern Regional Climate Center (http://mrcc.isws.illinois.edu) at the Illinois State Water Survey (ISWS).  Records date back to 1895.

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  Warmest May on record for Illinois

  Jun 1, 2018 3:30 pm

• Warmest March on Record for the Midwest

  Apr 3, 2012 8:15 pm

  March was the warmest on record for the nine-state Midwest region, based on preliminary temperature data.  The average temperature for the region was 50.3 degrees Fahrenheit, which breaks the previous record of 46.9 degrees set over 100 years ago in 1910, according to the Midwestern Regional Climate Center (http://mrcc.isws.illinois.edu) at the Illinois State Water Survey (ISWS).

• Warmest April on Record for Illinois

  May 3, 2010 1:15 am

  Based on preliminary data, the statewide average temperature for Illinois in April was 58.4 degrees, 6.2 degrees above normal and the warmest April on record. This beats the old record of 58.2 degrees set in 1955, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

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  Warmer, wetter winter leaves crop pest picture unclear

  Mar 3, 2020 8:00 am

  A warmer, wetter winter has caused higher than normal soil temperatures across the state, which could be helping agriculture pests survive the season.

• Warmer Soil Temperatures Continue Into February and March

  Mar 11, 2012 8:00 pm

   Soil temperatures continued to rise across Illinois in February and March, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program Manager at the Illinois State Water Survey.

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  Warmer soils this winter in Illinois could indicate healthy insect populations for spring

  Mar 5, 2021 9:00 am

  Despite the cold weather this February, winter soil temperatures averaged 1 to 2 degrees higher than the long-term averages in Illinois, indicating a greater chance of insects surviving the winter.

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  Warmer soils continue into July

  Jul 17, 2018 8:00 am

  Soils continue to be warmer than normal in mid-July, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program manager at the Illinois State Water Survey, University of Illinois.

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  Warmer January temperatures nearly broke records

  Feb 1, 2023 5:00 pm

  Illinois temperatures were above normal in January, preliminarily ranking the month as the sixth warmest on record, according to Illinois State Climatologist Trent Ford at the University of Illinois’ Illinois State Water Survey.

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  Warmer fall temperatures don’t eliminate risk of early fall freeze

  Aug 10, 2020 1:30 pm

  Temperatures in September and October have risen for decades in the Midwest; however, early fall freeze events have occurred despite the increasing temperatures.

• Warmer, Drier Soils in Illinois the First Half of June

  Jun 16, 2017 3:00 pm

  Soil temperatures at depths of 4 inches under sod averaged 77.7 degrees in Illinois on June 14, 4.7 degrees above the long-term average.

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  Warm, dry December concludes a cold, wet year

  Jan 3, 2020 8:00 am

  December temperatures were well above the long-term average across the state, breaking dozens of local daily maximum and minimum temperature records. The preliminary statewide December average temperature was 35.2 degrees, about 5 degrees above the 1981-2010 normal and the 18th warmest on record. 

• Warm and Damp November in Illinois

  Dec 1, 2015 2:15 pm

  Illinois experienced its third wettest and tenth warmest November on record, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

• Visit the ISWS at the 2018 Illinois State Fair!

  Jul 16, 2018 8:00 am

  Water Survey staff will be demonstrating how contamination moves through groundwater and into private wells and how well pumps work, and will provide free information on testing and maintenance of private wells, in Conservation World from August 10 through August 19.

• Very Dry May, 8th Warmest on Record

  Jun 1, 2007 8:15 pm

  "May 2007 was the 8th warmest and 23rd driest May since 1895. Statewide May precipitation in Illinois was 2.62 inches (1.65 inches below normal), and statewide temperatures were 67.3°F degrees (4.5°F above normal). Fortunately, short-term impacts of the dry weather were minimal because of abundant soil moisture from rainfall in previous months. Timely and widespread rains across northern and central Illinois over the Memorial Day weekend also provided relief for shallow-rooted corn and soybeans in those areas," says State Climatologist Jim Angel of the Illinois State Water Survey (http://www.sws.uiuc.edu), a division of the Illinois Department of Natural Resources.

• Users of data on Illinois environmental conditions will now register for access

  Feb 6, 2018 8:45 am

  Starting this month, users will be asked to register to access data on Illinois’ weather, soil, and water conditions on the University of Illinois’ Water & Atmospheric Resources Monitoring (WARM) program website. Data are still free of charge.

• Upwind Lakes Can Influence the Intensity of Lake-Effect Snowstorms over Downwind Lakes

  Apr 11, 2013 2:45 am

  Research shows that small lakes even hundreds of miles away can cause lake-effect snows to intensify around the Great Lakes, a phenomenon that may occur more often with climate change, according to David Kristovich, head of the Center for Atmospheric Science at the Illinois State Water Survey, University of Illinois.

• Unseasonably Dry And Warm Conditions Kick Off October In The Midwest

  Oct 17, 2011 9:15 pm

  It was an unseasonably dry and warm start to October across the Midwest.  On average, the Midwest experienced only 23 percent of its normal precipitation during the first 12 days of October, and temperatures were an average of 6 degrees above normal, according to Steve Hilberg at the Midwestern Regional Climate Center at the Illinois State Water Survey (ISWS).

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  University of Illinois-Washington University team part of NSF’s program focused on equitable water solutions

  Mar 19, 2024 4:15 pm

  The National Science Foundation recently announced the awarding of 15 grants, totaling $9.8 million, to interdisciplinary teams under Track K: Equitable Water Solutions, focused on research to benefit society at large. The University of Illinois team, working with researchers at Washington University in St. Louis, received $650,000 for a one-year effort to further develop their idea of passive sampling of water quality at the tap.

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  Unequal August precipitation leads to drought in Illinois

  Sep 3, 2019 10:00 am

  August 2019 will be remembered for remarkable differences in monthly precipitation totals across Illinois, as well as the first appearance of drought in the state since September 2018.

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  Understanding water’s role in decarbonization

  Jul 27, 2021 4:45 pm

  ISTC researchers needed to find adequate and reliable water sources to keep a carbon capture system running without compromising fragile aquatic ecosystems, local economies, and nearby communities’ water supply. Fortunately, ISTC knew the right expertise was close at hand in another unit within its parent Prairie Research Institute – The Water Survey’s Watershed Science team.

• Two Tropical Systems Boost Illinois Rainfall in September

  Oct 6, 2008 9:30 am

  The remains of Hurricanes Gustav and Ike boosted rainfall totals in Illinois for September. September statewide precipitation was 8.0 inches, 4.8 inches above normal and the third wettest September on record, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.sws.uiuc.edu).

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  Trent Ford named new Illinois State Climatologist

  Aug 12, 2019 11:15 am

  Hydroclimatologist Trent Ford, currently an assistant professor at Southern Illinois University Carbondale, has been selected as the next Illinois State Climatologist, the authoritative source of weather and climate information and services for the state of Illinois. 

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  Time for Illinoisans to report irrigation water use

  Sep 30, 2021 3:00 pm

  The deadline is approaching for Illinoisans to report their 2021 irrigation water use to the Illinois Water Inventory Program. The deadline for individual reporting is Jan. 1, 2022, while aggregate reports are due by March 1, 2022.

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  Thunderstorms Produce Tsunami-like Waves in the Great Lakes

  May 31, 2016 7:00 pm

  Spring and summer storms that create thunder and lightning on land also cause tsunami-like waves on the Great Lakes, bringing water surges onshore and jeopardizing docked boats and beach lovers, according to David Kristovich, head of the Climate and Atmospheric Science section with the Illinois State Water Survey, Prairie Research Institute at the University of Illinois.

• This Winter was the 4th Coldest on Record in Illinois

  Mar 4, 2014 4:15 pm

  The average statewide temperature for the three core winter months of December, January, and February was 20.8 degrees. It was 8.2 degrees below average and the fourth coldest December-February period on record, according to Illinois State Climatologist Jim Angel at the Illinois State Water Survey, University of Illinois.

• Third Wettest Start to Year for Illinois

  May 2, 2008 1:30 am

  For the fourth time this year, the monthly statewide precipitation has been above average, resulting in the third wettest January-April since 1895, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.sws.uiuc.edu), a division of the Illinois Department of Natural Resources.

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  The impact of Bulletin 75

  Jul 8, 2020 11:00 am

  As Illinois experiences a third consecutive year of record-breaking rainfall stretching from Chicago to Cairo, researchers at the Illinois State Water Survey (ISWS) have updated the publication that provides Illinois’ standards for expected extreme storms, known as Bulletin 75.

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  Testing for lead in private wells

  Jan 27, 2021 12:00 pm

  To prevent public health crises that result from widespread lead contamination in drinking water, community water supplies are required to closely monitor their drinking water quality. 

• Tenth Wettest February on Record for Illinois

  Mar 7, 2011 12:30 am

  The statewide average precipitation in Illinois for February was 3.39 inches, 1.46 inches above normal. This ranks as the tenth wettest February since statewide records began in 1895, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

• Tenth Warmest March on Record in Illinois

  Apr 6, 2016 10:15 pm

  March 2016 was the 10th warmest March on record with an average temperature of 46.5 degrees, 5.2 degrees above normal. Illinois was not alone; essentially the entire US was warmer than normal in March, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

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  Temperature swings were typical for March in Illinois

  Apr 1, 2022 2:30 pm

  As is typical for March weather, Illinois temperatures varied from day to day, with an average statewide temperature 1.5 degrees above normal, according to Illinois State Climatologist Trent Ford at the University of Illinois’ Illinois State Water Survey. March average precipitation was 1.32 inches above normal.

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  Temperature changes were common throughout November in Illinois

  Dec 1, 2021 11:30 am

  The preliminary statewide average November temperature was 40.7 degrees, 1.0 degree below the 1991–2020 average and 53rd coldest on record going back to 1895. The preliminary statewide average total November precipitation was 1.00 inch, 2.31 inches below the 1991–2020 average and the 9th driest on record.  

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  Team spotlight: Climate and Atmospheric Science

  Mar 11, 2020 12:00 pm

  The Water Survey’s Climate and Atmospheric Science team investigates the potential statewide impacts of climate change, including extreme precipitation changes (flooding, drought), availability of atmospheric resources for green energy generation, changes in the urban heat island, and integration of climate models into systems that take into account human population growth, health, and activities.

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  Survey seeks ideas to help specialty crop growers make pest control decisions

  Feb 19, 2019 10:15 am

  Researchers at the University of Illinois’ Prairie Research Institute are developing new pest degree day tools for the state’s specialty crop growers. A short online survey offers growers the opportunity to contribute their opinions on how this information is delivered.

• Surveyors Collect Data on Home Elevations in North-Central Illinois for Flood Risk Project

  Jun 8, 2017 3:00 pm

  As part of an Illinois State Water Survey (ISWS) project to determine the risk of flooding for individual homes and businesses in floodplains, licensed surveyors will visit properties to measure the height of structures from late June to July for two pilot areas in the City of Ottawa and the City of Moline.

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  Summer started mostly warm and dry in Illinois

  Jul 2, 2020 1:30 pm

  The preliminary statewide average June temperature was 73.7 degrees, 1.8 degrees above the 30-year normal, according to Illinois State Climatologist Trent Ford at the University of Illinois’ Illinois State Water Survey. The preliminary statewide average total June precipitation was 3.70 inches, 0.51 inches below the 30-year normal.

• Summer - One of the Warmest and Wettest on Record

  Sep 2, 2010 1:00 am

  This summer was one of the warmest and wettest on record, based on preliminary data. The statewide average temperature for summer (June–August) in Illinois was 76.4 degrees, 2.7 degrees above normal and the seventh warmest summer on record, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

• Summer drought may dull fall color

  Sep 14, 2012 2:00 pm

• Study Shows NE Illinois Should Have Enough Water to 2050

  Jun 18, 2012 7:45 pm

  Water supplies in NE Illinois should be adequate for the next 40 years, yet communities should still analyze their own situations and work with neighboring communities to avoid conflicts in the years ahead, according to Scott Meyer, hydrologist with the Illinois State Water Survey (ISWS) at the University of Illinois.

• Study Shows McHenry County Water Supplies May Not Suffice in Future

  Jan 7, 2014 4:15 pm

  Groundwater resources in McHenry County may be strained in 35 to 40 years, potentially causing local water shortages and detrimental effects to the ecology of local streams, according to Scott Meyer, hydrogeologist at the Illinois State Water Survey (ISWS), a division of the Prairie Research Institute at the University of Illinois.

• Study Shows Increasing Contamination in Chicago Area Groundwater

  May 28, 2008 1:30 am

  Since the 1950s, chloride (salt) levels in shallow groundwater have increased significantly in Cook and surrounding counties, indicating that the quality of groundwater resources needed to meet future growing demand is deteriorating, according to Illinois State Water Survey (ISWS) researchers.

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  Study shows future climate changes in wind patterns vary by U.S. region and season

  Jul 15, 2020 10:00 am

  The Midwest is a particularly promising region for future wind energy development out to 2100 when accounting for climate change, according to a new study at the University of Illinois.

• Study Provides New Insight on Fog Formation in the Midwest

  Mar 16, 2010 1:45 am

  For decades researchers have postulated that fog typically forms in the early morning hours following a calm, clear night. But a new study shows that a higher percentage of fog incidences–at least in the Midwest–occur under overcast skies when rain has fallen overnight.

  Dense fog forming in conditions that are not well understood increases the difficulty of forecasting fog accurately, according to Nancy Westcott, climatologist at the Illinois State Water Survey, University of Illinois at Urbana-Champaign.  Fog is a safety hazard for ground and air travelers and can be particularly costly when air traffic is delayed.

• Study Gleans Insights on How Lake Breezes Move Through Chicago

  May 1, 2012 7:00 pm

  Lake breezes that bring some relief on a scorching summer afternoon are thought to move more slowly through Chicago than through the surrounding suburbs. Scientists at the Illinois State Water Survey have discovered that this is often not the case and have gained new insights into the mysteries of how cities affect winds off a lake.

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  Students take on watershed project in summer internship

  Jul 24, 2023 12:45 pm

  College students in a summer internship program at the Illinois State Water Survey (ISWS) are developing new skills in geographic information system (GIS) learning while tackling ways to map Illinois streamflow more accurately to inform soil conservation efforts. This on-the-job training will better prepare students for future studies and their careers.