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  • Western corn rootworm developing resistance to rotation

    Sep 4, 2013 8:30 am

    INHS Behavioral Entomologist Joe Spencer is looking at rotation-resistant western corn rootworms, which are causing severe injury to crops. Crops modified to resist infestation by insects and crop rotation are some of the methods to control injurious insects, but some rootworms have developed resistance to these mechanisms. Repeated use of the modified corn year after year has given the rootworms time to adapt. Producers are encouraged to watch their fields for injury. This story was reported in InvestorPlace and the Bulletin.

  • August: Drought Arrives in Illinois

    Sep 6, 2011 9:15 pm

    The statewide average precipitation was 2.06 inches, 1.6 inches below average and 56 percent of average. This was the 13th driest August on record since 1895, based on preliminary data, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • Soil Moisture Levels Remain Lower Than Normal in Illinois

    Sep 17, 2013 1:00 am

    Soil moisture levels remained lower than normal, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program Manager at the Prairie Research Institute, Illinois State Water Survey, University of Illinois.

  • Soil Moisture Rises the Second Week of September

    Sep 17, 2015 2:30 pm

    Soil moisture levels rose across Illinois the second week of September as the state saw increased rainfall and cooler soil temperatures, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program Manager at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • Soybean Aphids have lowest impact in years

    Sep 25, 2012 8:00 am

    INHS Entomologist David Voegtlin reported that this year's soybean aphid population had its lowest recorded impact, starting early but then disappearing. The low trap numbers so far this fall indicate that there may be lower numbers of eggs overwintering and a smaller flight of aphids in the spring.

  • September: The Ninth Warmest on Record for Illinois

    Oct 2, 2015 2:30 pm

    September 2015 was the ninth warmest September on record for Illinois, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois. The statewide average temperature was 70.2 degrees, 4 degrees above average.

  • Leaves turning colors

    September weather was slightly cooler and wetter than average in Illinois

    Oct 2, 2020 8:45 am

    The preliminary statewide average September temperature was 65.4 degrees, 0.8 degrees below the 30-year normal, and tied for the 45th coolest on record. Preliminary statewide average total precipitation for August was 3.39 inches, 0.16 inches more than the 30-year normal, and the 58th wettest on record.

  • September: A Cool Month in Illinois

    Oct 7, 2011 9:15 pm

    The statewide average temperature in Illinois was 63.2 degrees, 3 degrees below average, and the 13th coolest September on record for the state.  The coolest September was in 1918 with 59.3 degrees, according to State Climatologist Jim Angel at the Illinois State Water Survey.

  • September was Dry and Warm in Illinois

    Oct 7, 2013 1:45 am

    Dry conditions were widespread across Illinois in September, and temperatures were above average for the first time in several months, according to Illinois State Climatologist Jim Angel at the Illinois State Water Survey, Prairie Research Institute, 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).

  • October: Warm and Dry in Illinois

    Nov 2, 2015 2:30 pm

    October was warmer and drier than average in Illinois. The statewide average temperature was 55.8 degrees, 1.7 degrees above average, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • October in Illinois had warm temperatures and plenty of rain

    Nov 2, 2021 10:45 am

    October 2021 in Illinois was the eighth warmest and the fourth wettest October on record going back to 1895, according to Illinois State Climatologist Trent Ford at the University of Illinois’ Illinois State Water Survey.

  • October Rainfall Helps Soil Dryness

    Nov 4, 2013 1:45 am

    Precipitation was near normal for the month of October in Illinois, at a statewide average of 3.2 inches. The long-term average, or normal, for October is 3.26 inches of precipitation, according to Illinois State Climatologist Jim Angel at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • October Was Wetter Than Average for Illinois

    Nov 4, 2014 3:45 pm

    The statewide average precipitation for October in Illinois was 4.5 inches, which is 1.2 inches above average, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • Soil Temperatures Still Warmer than Normal

    Nov 17, 2016 4:45 pm

    Soil temperatures declined through the first half of November, but still remain higher than normal, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program manager at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • Illinois was Cold and Dry in November

    Dec 1, 2014 3:45 pm

    November was much colder and drier than average. The statewide average temperature was 34.3 degrees, which is 8.2 degrees below average, and the fourth coldest November on record, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • 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.

  • 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.  

  • November: An Interesting Month for Weather in Illinois

    Dec 7, 2011 9:00 pm

    November in Illinois was the sixth wettest November on record and the ninth warmest, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey, University of Illinois at Urbana-Champaign.  In addition, the drought in central and western Illinois has ended due to the above average rainfall.

  • A Snowy Christmas in Illinois is Rare

    Dec 14, 2009 1:45 am

    Every year in December, weather forecasters are asked the age-old question:  Will we have a white Christmas this year? An analysis of Illinois' history shows the chances are slim, according to State Climatologist Jim Angel at the Illinois State Water Survey.

  • Chance of a White Christmas in Illinois

    Dec 15, 2014 3:45 pm

    It's beginning to look a lot like Christmas, but will it be white?  A white Christmas is defined as at least an inch of snow on the ground on Christmas Day. It should come as no surprise that the highest odds are in northern Illinois, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • State Climatologist provides context on December tornadoes

    Dec 16, 2021 8:45 am

    Severe thunderstorms developed in the late afternoon, evening, and night of Dec. 10, resulting in strong tornadoes in Illinois, Arkansas, Missouri, Tennessee, and Kentucky. The National Oceanic and Atmospheric Administration (NOAA) Storm Prediction Center listed 85 tornadoes nationwide from the Dec. 10 outbreak, including 12 in Illinois. Also, six deaths were reported in the state.

  • Photo of a leaf with raindrops by nikolett-emmert, Unsplash.

    Warm, wet November wraps up fall

    Dec 18, 2024 8:15 am

    November wrapped up a mild, dry fall with more mild temperatures, including several warmer-than-normal days, to tie the 10th warmest November since 1895, according to Illinois State Climatologist Trent Ford at the University of Illinois’ Illinois State Water Survey.

  • Illinois in 2012: Second Warmest and Tenth Driest on Record

    Jan 2, 2013 2:00 am

    The year 2012 will long be remembered for the drought and the exceptionally warm temperatures. While the data for December are still preliminary, 2012 was the second warmest and tenth driest year on record for Illinois, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey at the University of Illinois.

  • Midwest Experiences Warmest and Wettest December on Record

    Jan 6, 2016 10:30 pm

    In a year when many state records were broken, 2015 ended with historically warm temperatures and well above-normal precipitation, leading to the warmest and wettest December on record for the Midwest, according to the Midwestern Regional Climate Center (MRCC) at the Illinois State Water Survey (ISWS).

  • Freshwater mussel behavior altered by exposure to antidepressants

    Jan 10, 2014 8:00 am

    INHS Post-doctoral researcher Andrea Fritts is a co-author on a recently published study examining the effects of the antidepressant fluoxetine on the behavior of freshwater mussels, which could impact their survival and role in their ecosystem. The study found that chronic exposure led to "increases in movement, decreased time to movement, and increased likelihood of diurnal movement, and increased rates of lure display in mussels. Changes in mussel movement [in the wild] are likely to increase susceptibility to predation, and may also alter sediment nutrient cycling and oxygenation through changes in bioturbation provided by mussels."

  • Bald Eagles "making an impressive comeback"

    Jan 12, 2016 8:00 am

    INHS Ornithologist Mike Ward was contacted about the increase in eagle sightings in the area. According to Ward, there were fewer than 20 eagle nests in Illinois in the 80s, whereas during the last spring bird count, there were an estimated 200 eagle nests.

  • Snowy Owls invade Illinois

    Jan 17, 2012 8:00 am

    This winter, Snowy Owls have been sighted in Illinois almost daily. According to INHS Ornithologist Steve Bailey, "It's probably the biggest Snowy Owl invasion in years." He explains that this year's high lemming population led to an increase in young snowy owls. Bailey asks bird watchers to be responsible and keep their distance. Flushing an owl causes them to expend a great deal of energy and these birds have already migrated up to 1,000 miles. And as for those fabulous photographs of a snowy owl approaching the camera with talons outstretched? Those are often staged by photographers baiting the owls with captive raised mice. Bailey reminds bird watchers to "keep the bird's welfare in mind," and not lure the owls towards dangerous roadways with store bought mice that may harbor diseases.

  • January in Illinois Presented Wild Temperature Swings

    Feb 2, 2016 10:30 pm

    Illinois temperatures in January showed some very large swings in which the highs and lows tended to cancel each other out, with a monthly temperature of 26.7 degrees, or just 0.3 degrees above average, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • snow-covered trees hanging over a path

    A mostly mild January ends with winter storms in Illinois

    Feb 2, 2021 9:45 am

    January was quite a bit warmer and slightly wetter than average across the state, according to Illinois State Climatologist Trent Ford at the University of Illinois’ Illinois State Water Survey.

  • Coming back strong: Illinois Bald Eagle populations on the rise

    Feb 7, 2012 8:00 am

    Bald Eagle populations in Illinois are on the rise. In 1980, Bald Eagles were found breeding only in extreme Southern Illinois, but in surveys during 2008, nesting pairs were found in 67 Illinois counties. Part of the increase is attributed to the ban of DDT in 1972, but according to INHS Ornithologist Mike Ward, that was just the beginning. Environmental regulations have led to cleaner waterways (enabling eagles to more easily catch fish) and eagles have become more comfortable around humans. Being able to be near people gives them a lot more places to breed in Illinois, Ward said.

  • Soil Temperatures in Illinois Normal So Far This Winter

    Feb 20, 2015 3:15 pm

    Soil temperatures across the state have been near normal on average so far this winter, according to Jennie Atkins, Water and Atmospheric Resources Manager at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • INHS researchers described more than 100 new species in 2013

    Feb 21, 2014 8:00 am

    Last year, INHS researchers described over 100 species new to science. The Prairie Research Institute Library wrote a nice summary of the papers published by INHS scientists in 2013. Prairie Research Institute Library Blog

  • White Nose Syndrome confirmed in Illinois

    Feb 28, 2013 8:00 am

    INHS researchers and their collaborators have confirmed the presence of White Nose Syndrome (WNS)—a disease fatal to several of our bat species—in Illinois. Read more about WNS and the work INHS researchers are doing to understand the disease on the INHS website.

  • New director starts May 1, 2008

    Mar 4, 2008 12:00 am

  • Wettest February Ends Third Wettest Winter

    Mar 4, 2008 7:15 pm

    This past February was the wettest on record in Illinois with statewide records going back to 1895. The 4.48 inches of precipitation was 2.49 inches above average. February is typically one of the driest months of the year, averaging only 1.99 inches, 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.

  • Be Prepared for Natural Disasters to Keep Well Water Safe and Clean

    Mar 28, 2013 2:45 am

    Floods, droughts, and power outages can affect the safety of water supplies in private wells.  Being prepared for the unexpected may minimize the damage, according to Steve Wilson, hydrologist at the Illinois State Water Survey, University of Illinois at Urbana-Champaign.

  • Program gathers data to combat tickborne disease in Illinois

    Mar 29, 2018 11:30 am

  • Cold, Snowy March for Illinois

    Apr 2, 2015 3:00 pm

    The statewide average temperature for March was 38.2 degrees, 3.1 degrees below average, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • INHS scientists seek new sites for mussel relocation

    Apr 5, 2013 8:00 am

    INHS researcher Jeremy Tiemann is part of a team working to relocate endangered mussels from a bridge construction site in Pennsylvania to Illinois rivers. The first mussels (relocated in 2010) were given PIT (Passive Integrated Transponder) tags to allow monitoring and after a year and a half, approximately 80% of the relocated mussels had survived. An additional 1200 were transplanted in 2012, and now, new locations are being sought for additional transplants.

  • Soil Temperatures Important for Spring Field Work

    Apr 7, 2011 12:15 am

    With the arrival of spring, Illinois farmers are monitoring soil temperatures for decisions in the field. Soil temperatures across the state have been on the rise, according to State Climatologist Jim Angel of the Illinois State Water Survey (ISWS), University of Illinois at Urbana-Champaign.

  • Double the traps, double the turkeys

    Apr 11, 2018 11:15 am

  • Record-Setting Rainfall in April for Illinois

    Apr 29, 2011 12:15 am

    The statewide average rainfall for Illinois in April was 7.45 inches, nearly double the average rainfall of 3.83 inches for the month. This exceeds the old record of 7.13 inches set in 1957, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • April brought a mix of winter, spring, and summer weather

    May 3, 2021 12:45 pm

    Illinois temperatures varied considerably in April from way above to significantly below normal, according to Illinois State Climatologist Trent Ford at the University of Illinois’ Illinois State Water Survey.

  • illinois temperature maps first half of april and second half of april

    State Climatologist reported that April temperatures and precipitation fluctuated in Illinois

    May 4, 2020 9:00 am

    The preliminary statewide average April temperature was 49.2 degrees, 3.4 degrees below the 30-year normal and tied for the 27th coldest on record going back to 1895. The preliminary statewide average total April precipitation was 4.36 inches, 0.58 inches above than the 30-year normal and the 43rd wettest on record.

  • U of I Press publishes book authored by INHS staff

    May 16, 2014 8:00 am

    Michael Jeffords and Susan Post recently published a book through the University of Illinois Press, "Exploring Nature in Illinois." The book shares information on many of their favorite locations to explore in Illinois and how to find interesting things while you are at it. The book is available through the U of I Press and was featured in an article in The Southern.

  • Cooler, Wetter Soils in Mid-May

    May 16, 2016 7:00 pm

    Soils were wetter and cooler than average over most of Illinois in mid-May, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program manager at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • fox in snow

    'Citizen scientists' help track foxes, coyotes in urban areas

    Jun 4, 2019 12:45 pm

    As foxes and coyotes adapt to urban landscapes, the potential for encounters with humans necessarily goes up. A team of scientists is taking advantage of this fact to enlist the eyeballs and fingertips of humans – getting them to report online what they see in their own neighborhoods and parks.

  • INHS herpetologists and U of I veterinarians collaborate for turtle conservation

    Jun 15, 2012 9:00 am

    INHS Herpetologist Chris Phillips and U of I Wildlife Veterinarian Matt Allender are combining their efforts in an attempt to better understand the health of reptile populations in Illinois. Historically, conservation efforts have focused on habitat preservation and restoration, but in recent years, devastating diseases have been observed in wildlife populations. Through collaboration with INHS herpetologists, Allender has found a bacterial infection in box turtle populations and a fungal infection in Eastern Massasauga rattlesnake populations.

  • Soil Moisture Levels Decreasing from Last Week’s Highs

    Jun 16, 2014 3:00 pm

    Soil moisture levels are falling from the highs seen last week due to storms across the state, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program Manager at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.