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Illinois State Water Survey

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  • 12th Biennial Conference on the Management of the Illinois River System

    The Illinois State Water Survey is Co-Sponsoring:The Twelfth Biennial Conference on the . Management of the Illinois River SystemOctober 20-22, 2009Hotel Pere Marquette, Peoria, IL 

  • 14th Illinois River Conference – Working Locally-Reaching Globally

    “Working Locally-Reaching Globally”, the theme for the 14th Biennial Governor's Conference on the Management of the Illinois River System, offers a look at the river system, the local work being done to protect it, and its place on a global scale. The conference will be held on October 1-3, 2013 at Peoria's Four Points by Sheraton.

  • 2006 Ranks as 9th Warmest Year for Illinois

    "Based on preliminary data, temperatures of 54.0°F statewide (1.8°F above 30-year normals) made 2006 the 9th warmest year in Illinoissince 1895. This was largely the result of a record-setting January last year with an average temperature of 37.9°F, 13.3°F above normal," said State Climatologist Jim Angel of the Illinois State Water Survey (http://www.sws.uiuc.edu), a division of the Illinois Department of Natural Resources.

  • 2007 Governor's Conference on Management of the Illinois River System Scheduled

    The Illinois State Water Survey (ISWS) is one of 60 groups cosponsoring the 11th Biennial Governor's Conference on the Management of the Illinois River System. "The Illinois River-Continuing Our Commitment" will be October 2-4 at Peoria's Holiday Inn City Centre Hotel.

  • 2011 Midwest Summer

    Summer (June through August) in the Midwest was marked by above average temperatures, especially in July and early August, and extreme precipitation conditions.  Drought conditions occurred for half of the Midwest, while at the same time, several severe precipitation events resulted in flash flooding, breaking 17 all-time precipitation records, according to the Midwestern Regional Climate Center at the Illinois State Water Survey (ISWS).

  • 2014 Marks the 4th Coldest Year on Record for Illinois

    The statewide average temperature for 2014 was 49.4 degrees F, which is 2.9 degrees below average.  The year was tied with 1912 and 1979 for fourth place, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • 2018 Celebration of Excellence

    On April 11, the Prairie Research Institute honored employees for their outstanding achievements and excellent work. Selection committees composed of staff from across the organization reviewed multiple strong nominations before selecting the 2018 honorees.

  • Above-Average Temperatures for April in Illinois

    Although April had a few cold stretches, the statewide average temperature for the month was 54.1 degrees, 1.7 degrees above average, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • A Dry October in Illinois

  • A mild January in Illinois

    The statewide average temperature in January was 31.4 degrees, 5.0 degrees above normal, and the 14th warmest January on record, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey, University of Illinois.

  • Angel talks climate, career with Illinois News Bureau

    News Bureau physical sciences editor Lois Yoksoulian spoke with State Climatologist Jim Angel about his career, climate change and the recently released National Climate Assessment.

  • Anniversary of First Hook Echo Tornado Captured on Radar

    Today is the 62nd anniversary of the first documented case of a tornado detected by radar. Illinois State Water Survey staff captured the historic event on film on April 9, 1953. This discovery helped lead to the first national weather radar network in the United States, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • April 2018 was second-coldest on record for Illinois

    Illinois State Climatologist Jim Angel reports that the statewide average temperature for Illinois in april was 44.7 degrees, 7.9 degrees below normal. The only colder April on records was in 1907, with an average temperature of 43.1.

  • April in Illinois was Much Wetter than Last Year

    April was the 4th wettest on record for Illinois with 6.90 inches of rain, according to Illinois State Climatologist Jim Angel at the Prairie Research Institute, University of Illinois. That total was 3.13 inches above the long-term average of 3.77 inches for the month.

  • April in Illinois was Warm and Wet

    The statewide average temperature for April was 51.9 degrees, only 0.7 degrees below average. While it continues the string of below-average months that stretched all the way back to November, this month had the smallest departure from average, according to Jim Angel, Illinois State Climatologist at the Illinois State Water Survey, University of Illinois.

  • A Rainy June Set a New Record for Illinois

    The statewide average precipitation for June 2015 in Illinois was 9.53 inches, or 5.33 inches above the average June precipitation. This was the wettest June on record for Illinois, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

     

  • Arsenic in Private Wells is Hot Topic at ISWS Water Testing Lab

    September 18 is World Water Monitoring Day

    Since the national drinking water standard for arsenic became more stringent in 2006, arsenic in Illinois groundwater has become a health concern, especially for private well owners. Community water supplies are government-regulated, but private well owners must monitor their own water for safety, according to Brian Kaiser, associate chemist at the Illinois State Water Survey Public Service Laboratory at the University of Illinois Institute for Resource Sustainability.

  • Artificial Intelligence Scores High in Accuracy to Predict Water Contamination

    New, effective solutions are revealed when scientists use computer programs that simulate human intelligence to forecast drinking water contamination in agricultural areas, according to Momcilo Markus, hydrologist at the Illinois State Water Survey (ISWS), a division of the Prairie Research Institute at the University of Illinois.

  • A Snowy Christmas in Illinois is Rare

    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.

  • A Snowy, Rainy March in Illinois

    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.

  • August and Summer Were Cool and Dry in Illinois

    The statewide average precipitation for August was 1.38 inches, according to State Climatologist Jim Angel, Illinois State Water Survey, Prairie Research Institute, University of Illinois.  It was the third driest August on record and 2.22 inches below the 1981-2010 average.

  • August: Drought Arrives in Illinois

    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).

  • August Provided Illinois with Extremes: Rainfall Records in North and Drought in South

    "Rainfall amounts in northeastern Illinois established this as the wettest August and wettest summer since regional records began in 1895. Rainfall for northeastern Illinois (including those counties from Boone to LaSalle and eastward) averaged 11.47 inches, 7.33 inches above normal, and beat the 1987 record of 11.02 inches. JuneAugust totals thus far in this area averaged 20.05 inches, 8.02 inches above normal, and beat the 1972 record of 19.26 inches. Northwestern Illinois received 8.45 inches in August, 4.05 inches above normal and the 5th wettest on record. Its JuneAugust total was 19.18 inches, 6.69 inches above normal and the 4th wettest on record," 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.

  • August Rainfall, Heaviest on Record in Northeastern Illinois

    "Rainfall amounts in northeastern Illinois already have established this as the wettest August and wettest summer since regional records began in 1895. As of the morning of August 24, rainfall for northeastern Illinois (including those counties from Boone to LaSalle and eastward) averaged 11.32 inches, 8.10 inches above normal, and beating the 1987 record of 11.02 inches. Totals for JuneAugust thus far in this area averaged 20.02 inches, 8.91 inches above normal, and beating the 1972 record of 19.26 inches," 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.

  • August was Cool and Dry in Illinois

    The statewide average temperature in August was 70.6 degrees, 3 degrees below normal. This was the 12th coolest August on record, according to Illinois State Climatologist Jim Angel at the Illinois State Water Survey, University of Illinois.

  • Awareness of Flood Risk Lessens Losses

    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.

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

    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.

  • A Wet August Wraps Up a Cool, Wet Summer in Illinois

    The 12th wettest August in Illinois finishes out the 10th wettest summer on record. While August was slightly warmer than average, the summer was cooler than average, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • A Wet May, Spring, and Year to Date for Illinois

    The statewide precipitation for May was 6.87 inches, 2.25 inches above the long-term average, and the 12th wettest May on record, according to Jim Angel, Illinois State Climatologist at the Prairie Research Institute, University of Illinois.

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

    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.

  • Central Illinois weather station is upgraded to track air pollution particles

    After 23 years of data collection on atmospheric conditions at the Bondville Environmental and Atmospheric Research Site, a team from the National Oceanic and Atmospheric Administration worked with scientists at the Prairie Research Institute to move the monitoring system to a new temperature-controlled building.

  • Chance of a White Christmas in Illinois

    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.

  • Chances of a White Christmas in Illinois This year

    What are the chances of a white Christmas in Illinois this year?  Historically, the highest odds are in northern Illinois, according to State Climatologist Jim Angel at the Illinois State Water Survey.

  • Changing methods for road salt application may ease environmental effects

    Salt crystals on roads and parking lots shimmer in the muted sunlight of an Illinois winter day. Once washed away into rivers and streams, salt contaminates the local environment, according to groundwater geochemist Walt Kelly with the University of Illinois’ Prairie Research Institute (PRI).

  • Climatologist compares rainfall from Hurricane Harvey with Chicago storms

    What would happen if the rain from Hurricane Harvey that fell in Houston, Texas, hit Chicago? The result would be unlike any rainstorm that Chicago has ever seen, according to Illinois State Climatologist Jim Angel.

  • Cold, dry December ends a warm year in Illinois

    The statewide average temperature for December was 28.6 degrees, 1.3 degrees below normal, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • Coldest July on Record for Illinois

    Based on preliminary data for Illinois, the statewide average temperature for July was 70.4 degrees, 5.3 degrees below normal. This ranks as the coldest July in the statewide records and a degree colder than the previous record set in 1924 (71.5 degrees), according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.sws.uiuc.edu).

  • Cold February Wraps Up Cold Winter

    Based on preliminary data in Illinois, the statewide average temperature for February was 25.1 degrees, 5.1 degrees below normal. Snowfall for February was above normal. Amounts ranged from 6 inches in southern Illinois to over 18 inches in the Quad Cities and Chicago areas, according to State Climatologist Jim Angel of the Illinois State Water Survey 

  • Cold January for Illinois

    January 2014 was the eighth coldest January on record for Illinois. The statewide average temperature was 18.2 degrees, 8.1 degrees below the 1981-2010 average of 26.3 degrees, according to Illinois State Climatologist Jim Angel at the Illinois State Water Survey, University of Illinois.

  • Cold, Snowy March for Illinois

    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.

  • Cool, Dry August for Illinois

    August statewide precipitation was below normal, ending an eight-month streak of above-normal precipitation in Illinois that began in December 2007, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.sws.uiuc.edu).

  • Cool, Dry November Finishes with First Major Snow of the Season

    November in Illinois was both cooler and drier than normal. However, a low-pressure system at the end of the month brought the first significant snowfall of the season across northern and central Illinois, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • Cooler soil temperatures in mid-April

  • Cooler than Normal July Prevails

    "Statewide July temperatures averaged 73.5°F, 2.3°F below normal, and the 20th coolest July since 1895. While we had some hot days, Illinois generally managed to avoid the heat wave experienced out West during July," 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.

  • Cooler, Wetter Soils in Mid-May

    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.

  • Cool, Wet Summer in Illinois

    Based on preliminary data for Illinois, this was the 11th coolest and 8th wettest summer since statewide records began in 1895. The average temperature for June–August was 71.4 degrees, 2.4 degrees below normal. The total precipitation for June–August was 15.2 inches, 3.6 inches above normal, according to State Climatologist Jim Angel of the Illinois State Water Survey 

  • Cool, Wet Weather Slows Northern and Central Illinois Planting

    "Combined with cooler temperatures, wet April conditions led to widespread corn planting delays in the northern two-thirds of the state, where precipitation averaged 4.05 inches (0.46 inches above normal) and up to 5–7 inches at some locations. April temperatures averaged 49.5°F statewide (2.7°F below normal), and statewide precipitation was 3.75 inches (just 0.05 inches below normal), based on preliminary data. Southern Illinois was drier, averaging 3.38 inches (0.74 inches below normal), and planting there is further along," 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.

  • December 2010 in Illinois–Cold and Snowy

    The statewide average temperature for December was 24.0 degrees, which is 5.8 degrees below normal. This ranks as the 12th coldest December on record, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • December Finished Cold in Illinois

    In December, the statewide temperature of 25.5 degrees was 4.4 degrees below average, making it the 20th coldest December on record since 1895. However, it is far short of the record coldest December of 1983 when the statewide temperature was only 17.1 degrees, 8.4 degrees colder than this December, according to Illinois State Climatologist Jim Angel at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • December in Illinois: Warm with Little Snow

    The statewide average temperature for December 2011 in Illinois was 35.7 degrees, 5.9 degrees above average. This ranked as the ninth warmest December on record with statewide records going back to 1895, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey, University of Illinois at Urbana-Champaign.