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  • snow and frost on tree branches

    A warm start to January, followed by snow and record-breaking cold

    Feb 1, 2019 2:15 pm

    January 2019 will be a month remembered by an unseasonably warm start, followed by a torrent of winter storms, and ending with a monumental Arctic air outbreak that shattered many record-cold temperatures across the state.

  • January Was Warmer, Wetter than Usual

    Feb 2, 2007 8:30 pm

    "Despite the recent cold spell, statewide January temperatures of 29.5°F were 4.7°F above normal, and precipitation of 3 inches was 1.07 inches above normal, based on preliminary data. Temperatures were well above normal the first half of January (12.7°F above) and slightly below normal the second half (2.8°F below), the third consecutive month with above normal temperatures. November–January temperatures were 4.2°F above normal, the 7th warmest such period on record 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.

  • January 2015 in Illinois: Cool and Dry

    Feb 2, 2015 3:15 pm

    January 2015 in Illinois was slightly cooler and drier than average. The statewide temperature was 25.4 degrees, 1 degree below average and the 53rd coldest on record, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • 2022 begins with a dry and cold January

    Feb 2, 2022 1:00 pm

    The preliminary statewide average January temperature was 21.1 degrees, 5.6 degrees below the 1991–2020 average. The preliminary statewide average total January precipitation was 1.17 inches, 1.14 inches below normal.

  • January in Illinois: Wet Conditions Despite the Lack of Snow

    Feb 4, 2013 2:00 am

    Snowfall was below average in January, but the statewide precipitation—which includes both rain and melted snow—was 3.9 inches, nearly 2 inches above average, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey at the University of Illinois, Urbana-Champaign.

  • Threat of Zika in Illinois low, but precautions can be taken

    Feb 16, 2016 8:00 am

    INHS Medical Entomologist Ephantus Muturi was interviewed by the Chicago Tribune about the threat of Zika virus in Illinois. Muturi says that Aedes aegypti, which transmits Zika, has been found in Illinois but does not thrive in our climate. The Asian tiger mosquito, Aedes albopinctus, is found in Illinois, but has not been found to transmit Zika, though more research is needed. 

  • Soils were warm throughout the state this winter

    Feb 24, 2017 4:30 pm

    Warmer winter soils may have an impact on agriculture and crop pest control this spring, according to researchers at the University of Illinois' Prairie Research Institute.

  • National Groundwater Awareness Week: March 8–14, 2015

    Feb 27, 2015 3:15 pm

    About half the U.S. population receives its drinking water from wells. Many cities in Illinois, including Champaign-Urbana, Normal, and most of the western and southern suburbs of Chicago, get some or all of their drinking water from groundwater sources. In addition, almost all rural residents use groundwater. During National Groundwater Awareness Week, we want to promote stewardship of this important resource, to protect and conserve it.

  • Winter Finally Arrives in Illinois in February

    Mar 1, 2013 2:45 am

    Snowfall was below average in January, but the statewide precipitation—which includes both rain and melted snow—was 3.9 inches, nearly 2 inches above average, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey at the University of Illinois, Urbana-Champaign.

  • February: More Rain, Less Snow

    Mar 3, 2009 8:00 pm

    February statewide precipitation averaged 2.45 inches, 0.52 inches above normal. Ft. Massac State Park reported the highest monthly precipitation total of 6.03 inches, according to State Climatologist Jim Angel of the Illinois State Water Survey 

  • Seventh Coldest February on Record Wraps Up Winter in Illinois

    Mar 3, 2015 3:15 pm

    The statewide average temperature for February was 18.6 degrees, which is 12.3 degrees below the 1981-2010 average and the 7th coldest February on record. In comparison, February 2014 was the 9th coldest at 19.5 degrees, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • February breaks record for warm temperatures in Illinois

    Mar 3, 2017 4:30 pm

    February was the warmest February on record for Illinois, according to State Climatologist Jim Angel at University of Illinois’ Illinois State Water Survey.

  • 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.

  • February’s roller coaster weather wraps up winter

    Mar 4, 2025 12:15 pm

    The month of February is known for bringing cold weather in Illinois, but it also often sees some of the biggest day-to-day temperature changes — as it did last month, according to Illinois State Climatologist Trent Ford at the University of Illinois’ Illinois State Water Survey.

  • Snowy, Wet February, 9th Coldest on Record

    Mar 5, 2007 8:30 pm

    "Old Man Winter weather arrived in full force across much of Illinois in February, the 9th coldest on record since 1895, with a statewide temperature of 21.9°F, 8.9°F below normal, based on preliminary data. Snowfall generally was 2–6 inches (southern Illinois), 6–25 inches (central Illinois), and 12–25 inches (northern Illinois). Heaviest amounts occurred in east-central Illinois, with Sidell (Champaign County) reporting 27.5 inches, the most for any Illinois station.

  • On the hunt for first flower of spring

    Mar 5, 2010 11:45 am

    Environmental Almanac, written by Rob Kanter, describes searching for skunk cabbage. Kanter, along with INHS Wetland Plant Ecologist Rick Larimore, headed out to the Middle Fork State Fish and Wildlife Area in Vermilion County to see this "first flower" of spring. Kanter and Larimore were successful in their quest to find skunk cabbage. Skunk cabbage is able to bloom so early in the year because it generates enough heat to grow in the frozen ground. It gets it's name from the rotting flesh smell it exudes to attract ground pollinating insects. 

  • Greater Prairie Chickens can't endure without human help

    Mar 6, 2017 2:30 pm

    Researchers at the Illinois Natural History Survey report that the greater prairie chicken cannot persist in Illinois without help.

  • 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.

  • Early Warm Weather brings early insects

    Mar 16, 2012 8:00 am

    INHS Behavioral Entomologist Joe Spencer told WBEZ that the early warm weather means bugs can mature faster, allowing them to emerge much sooner than they are normally expected to, but this does not necessarily mean there will be more of them.

  • "Periodic table for flies" mapped

    Mar 17, 2011 10:00 pm

    The Fly Tree of Life project has mapped the 260-million-year evolution of the order Diptera. The 152,000 named species of flies are ecologically important as disease vectors, pollinators, and decomposers and this groundbreaking project will facilitate future research into the convergent evolution of traits such as blood feeding and wing-loss. Read the study's abstract here.

  • Illinois Soils Warm Over the First Half of March

    Mar 18, 2016 10:30 pm

    Soil temperatures increased through the first half of March, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program manager at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • Preserving nature through art

    Mar 19, 2010 2:00 pm

    Smile Politely has an excellent article discussing the visiting art exhibit, "Nature Sketches by Gladys and Ruth Dudley", currently on display at the Forbes Natural History Building. In the article, INHS biological control specialist Sue Post discusses what makes the sketches in the collection so fascinating. The exhibit will be on display through the spring. No special arrangements or fees are needed to view the sketches, which on on display in the first-floor North West hallway.

  • Long-term fish monitoring in large rivers

    Mar 22, 2017 8:00 am

    INHS scientists examined five long-term fish monitoring programs in large rivers in the U.S. They outline best practices in Fisheries Magazine.

  • Awareness of Flood Risk Lessens Losses

    Mar 24, 2012 8:00 pm

    Damages as a result of flooding happen unnecessarily every year in the U.S. and in the U.K., much to the shock of many home and business owners who suffer losses in floodplain areas.  It is vital to raise public awareness for citizens who are at risk for flood losses and must understand how much risk they face and how to mitigate the hazard, according to speakers at the Illinois State Water Survey (ISWS) and University of Leeds workshop in Champaign on April 17.

  • Illinois has Four Odd Tornado Seasons in a Row

    Mar 25, 2015 3:00 pm

    The 2015 tornado season thus far in Illinois and the rest of tornado alley is incredibly quiet. However, this quiet start is no reason to relax if the past few years are a guide, according to Illinois State Climatologist Jim Angel at the Illinois State Water Survey, University of Illinois.

  • New lecture series named for renowned aquatic biologist

    Mar 29, 2017 8:00 am

    In recognition of James Karr's contributions to aquatic biology and environmental management, a new James R. Karr Lecture in Aquatic Biology will kick off on Friday, April 14 with an inaugural address from its namesake.

  • March was Cold and Dry in Illinois

    Apr 1, 2014 4:15 pm

    The statewide average temperature for March in Illinois was 33.8 degrees, which was 7 degrees below average and the 8th coldest March on record. Combined with the colder-than-average January and February made this the 4th coldest start (23.6 degrees) for Illinois for the year to date, according to State Climatologist Jim Angel at the Illinois State Water Survey, University of Illinois.

  • rain

    March 2019: A cold start with a stormy, wet finish to the month

    Apr 1, 2019 2:30 pm

    March 2019 will be a month remembered for an unseasonably cold start, followed by an active and wet weather pattern which resulted in a continuation of excess soil moisture, and major flooding events on many local streams and rivers.

  • broken umbrella in muddy field

    March was warmer with above average precipitation in Illinois

    Apr 2, 2020 9:15 am

    March was warmer and wetter than average across the state, according to Illinois State Climatologist Trent Ford.

  • March 2012 Was the Warmest March on Record for Illinois

    Apr 3, 2012 8:00 pm

    The statewide average temperature for March was 54.9 degrees, 13.8 degrees above normal, making March 2012 a record-setting month, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • A Snowy, Rainy March in Illinois

    Apr 3, 2017 4:15 pm

    Statewide precipitation averaged 3.62 inches, 0.66 inches above normal. The highest monthly total precipitation was in Lockport with 7.22 inches, according to Illinois State Climatologist Jim Angel at the University of Illinois’ Illinois State Water Survey.

  • No Surprises for March: Near Average Temperatures

    Apr 5, 2011 12:15 am

    The statewide average temperature for Illinois in March was 41.0 degrees, just 0.1 degrees below the 1971–2000 average, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • March Was Warmer and Drier than Normal

    Apr 6, 2010 1:45 am

    Based on preliminary data in Illinois, the statewide average temperature for March was 43.6 degrees, 2.5 degrees above normal. This ends a three-month streak of colder than normal temperatures that occurred this winter, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • Dinosaurs may have had lice

    Apr 7, 2011 6:00 pm

    A recent article in Biology Letters, authored by INHS Ornithologist Kevin Johnson and his colleagues Vincent Smith, Tom Ford, Paul Johnson, Kazunori Yoshizawa, and Jessica Light, reveals that the ancestors of the lice found on modern day birds and mammals began to diversify prior to the mass extinction of the dinosaurs at the Cretaceous–Palaeogene boundary, 65 million years ago.

  • Soil Moisture and Temperatures Dictate Spring Planting Dates

    Apr 8, 2010 1:45 am

    Once springtime arrives, Illinois crop producers begin watching and waiting for optimal soil moisture and temperatures to kick off the 2010 planting season.  Soil moisture at the end of March was above average over much of Illinois, according to Bob Scott, meteorologist of the Illinois State Water Survey (ISWS), University of Illinois at Urbana-Champaign.

  • Illinois team tackles mysterious disease afflicting wild and captive snakes

    Apr 12, 2017 8:00 am

    Researchers in the Illinois Natural History Survey are investigating every aspect of snake fungal disease, hoping to find a treatment.

  • Waterfowl study helps evaluate Illinois River habitat

    Apr 13, 2012 10:00 am

    INHS Waterfowl Biologists have been monitoring restored wetlands along the Illinois River to determine if restoration efforts have been successful for waterfowl populations. Chris Young of the State Journal Register went along and documented the diving duck surveys.

  • Morels in Illinois: first steps on the path to a new obsession

    Apr 13, 2012 8:00 am

    Hunting for morels is a popular spring pastime for many. INHS Mycologist Andy Miller was consulted by Rob Kanter for an Environmental Almanac piece and revealed that there are at least 26 separate species of black morels and 16 species of yellow morel. Not mentioning specific locations, Andy gave tips to would-be hunters on where to look, such as moist areas near dead elm trees or living ash trees. Borrowing Rob Kanter's words of warning: Deadly poisonous mushrooms occur along with nonpoisonous ones throughout Illinois. Neither this article nor the accompanying photo is intended to enable beginners to distinguish between them.

  • Soil Moisture Levels Near Normal for the Start of the Growing Season

    Apr 16, 2013 2:45 am

    Soil moisture levels are normal in Illinois for the start of the growing season, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program Manager at the Illinois State Water Survey.

  • Soil moisture levels high across Illinois

    Apr 16, 2014 4:00 pm

    Soil moisture levels in Illinois are high in the middle of April, 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 Soil Temperatures were Warm in Mid-April

    Apr 16, 2015 3:00 pm

    Soil temperatures were slightly above the long-term average in the middle of April, 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 has Warmer, Drier Soils in Mid-April

    Apr 18, 2016 8:15 pm

    Warmer weather in the second week of April brought warmer and drier soils, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program manager at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • Warm Soils Reported Throughout Illinois

    Apr 18, 2017 4:15 pm

    Soil temperatures rose steadily over the first half of April, increasing 11.5 degrees during the first 15 days. At depths of 4 inches under sod, temperatures averaged 54.9 degrees for the period, 4.4 degrees higher than the long-term average.

  • Morel hunting tips from INHS Mycologist Andy Miller

    May 1, 2014 8:00 am

    INHS Mycologist Andy Miller was interviewed for an article about hunting mushrooms in Illinois. For more information on mycological research, visit the Miller Laboratory Page.

  • Weather was Average for April in Illinois

    May 2, 2016 8:00 pm

    Colder temperatures in the first half of April in Illinois were nearly canceled out by warmer temperatures in the second half of the month, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey, University of Illinois.

  • A Wet April and Record-Warm January-April in Illinois

    May 2, 2017 4:15 pm

    The statewide average precipitation for April in Illinois was 7.01 inches, 3.23 inches above normal and the second wettest April on record, according to Illinois State Climatologist Jim Angel at the University of Illinois’ Illinois State Water Survey.

  • frost on flower bud

    April's temperature roller coaster ends colder, wetter than average

    May 4, 2020 1:45 pm

    According to Illinois State Climatologist Trent Ford, April ended colder and wetter than average across the state. 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.

  • Emerald Ash Borer adults emerging

    May 8, 2012 8:30 am

    According to Illinois CAPS Coordinator Kelly Estes, "Recent reports indicate that emerald ash borer adults have begun emerging in several areas of the state. Over the past two weeks we have been notified of adults in central Illinois in the Bloomington-Normal area as well as recent reports from NE Illinois in the Chicago area." For more information and resources on Emerald Ash Borer Beetles, visit the Illinois CAPS Blog and the Illinois Cooperative Agricultural Pest Survey Website.

  • InvertNet conference merges systematics and technology

    May 14, 2012 8:00 am

    INHS Bioinformatician Matt Yoder was interviewed about the InvertNet Spring 2012 Conference held in April at University of Illinois.  Yoder said that the conference merged systematists with computer programers and engineers. InvertNet is funded by the National Science Foundations Advancing Digitization of Biological Collections (ADBC) program to provide unprecedented access to specimen images and data from invertebrate collections.

  • Soil Moisture Levels Increased in Early May

    May 18, 2015 2:45 pm

    Soil moisture increased slightly throughout the state the first half of 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.