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Water Survey

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  • July Conditions in Illinois Ranged from Floods to Drought

    Aug 2, 2017 3:45 pm

    Northern Illinois experienced heavy rain and widespread flooding in July. Meanwhile, parts of central and southern Illinois experienced dry weather that caused crop damage, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey at the University of Illinois.

  • July brought high humidity and above average rainfall

    Aug 2, 2021 3:30 pm

    Rainfall was above average in July in Illinois with slightly cooler temperatures and very high humidity, even by recent climate standards, according to Illinois State Climatologist Trent Ford at the University of Illinois’ Illinois State Water Survey.

  • Cooler than Normal July Prevails

    Aug 3, 2007 7:45 pm

    "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.

  • July: Cool and Wet for Illinois

    Aug 3, 2015 2:30 pm

    July was both cooler and wetter than average in Illinois, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • State Climatologist: An active July continues a warm summer

    Aug 3, 2020 1:45 pm

    July was warmer and wetter than average across Illinois, continuing a warmer than average summer season. The preliminary statewide average July temperature was 77.2 degrees, 1.8 degrees above the 30-year normal. Preliminary statewide average total precipitation for July was 5.79 inches, 1.71 inches wetter than normal.

  • July brought sweetcorn…and floods, drought, heat, smoke, and tornadoes

    Aug 3, 2023 1:45 pm

    In one month, Illinoisans experienced severe heat, lingering drought and flash floods, strong storms, and poor air quality. This was not your typical July, according to Illinois State Climatologist Trent Ford at the Illinois State Water Survey. 

  • July: A Month of Extremes for Illinois

    Aug 4, 2011 9:15 pm

    July could be described as a month of extremes for Illinois. Hot and humid weather was persistent throughout the month. Meanwhile, heavy rains occurred in parts of northern and southern Illinois while central Illinois struggled with dry weather, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • Record Wet Conditions Continue for the Midwest

    Aug 4, 2015 2:30 pm

    Heavy rain continued to fall across the Midwest this July after Illinois, Indiana, and Ohio broke records for June precipitation. Seven of the nine states in the region recorded above normal precipitation for July, according to Bryan Peake, service climatologist at the Midwestern Regional Climate Center (http://mrcc.isws.illinois.edu/), Illinois State Water Survey (ISWS).

  • No Surprise: July was Hot and Dry in Illinois

    Aug 7, 2012 7:45 pm

    This July was the second warmest and fourth driest on record, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey at the University of Illinois in Urbana-Champaign.

  • July–Warmer and Wetter than Normal for Illinois

    Aug 8, 2010 1:00 am

    The statewide average temperature for Illinois in July was 77.7 degrees, 1.9 degrees above normal. While it was warm and uncomfortably humid, it was only the 19th warmest July on record, tied with 1986 and 1952, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • 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.

  • Soil Moisture Increased throughout Illinois Due to Recent Rains

    Aug 16, 2016 7:15 pm

    Recent rains increased soil moisture throughout 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.

  • Farmers Must Adapt to Climate Changes in Illinois

    Aug 17, 2016 7:00 pm

    Farmers who keep an eye on the sky and an ear tuned to the local weather report will also want to pay attention to long-term climate change trends which may sway production decisions down the road.

  • Illinois Soils Cooler, Drier in Mid-August

    Aug 17, 2017 3:45 pm

    Soil temperatures at depths of 4 inches under sod averaged 75.8 degrees in Illinois during the first half of August, 1.2 degrees below the long-term average and 4.0 degrees lower than the same period in 2016

  • Little Change in Soil Moisture During the First Half of August

    Aug 18, 2015 2:30 pm

    Soil moisture levels in Illinois showed little overall change in the first half of August, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program Manager at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • Soil Moisture Continues to Decline in Illinois

    Aug 19, 2013 1:00 am

    Soil moisture continued to decline across Illinois with levels at 2 inches 27 percent lower on August 15 than those from July 15, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program Manager at the Prairie Research Institute, Illinois State Water Survey, University of Illinois.

  • Near-Normal August after a Hot and Dry Summer for Illinois

    Aug 31, 2012 7:45 pm

    After months of exceptionally warm temperatures and drought, Illinois finally experienced temperatures and precipitation closer to normal in August, according to Illinois State Climatologist Jim Angel at the Illinois State Water Survey, University of Illinois.

  • Illinois Has a Cool, Dry August

    Sep 1, 2017 2:30 pm

    August was cool across the state and dry in most places in Illinois, capping off a summer that was cool and wet, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • Cool, Wet Summer in Illinois

    Sep 2, 2009 11:00 am

    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 

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

    Sep 2, 2014 3:45 pm

    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.

  • clouds with pink lining

    State Climatologist: Varied temperatures and rainfall and a derecho make for a wild August

    Sep 2, 2020 9:00 am

    August was slightly cooler and much drier than average across Illinois. The preliminary statewide average August temperature was 72.7 degrees, 0.9 degrees below the 30-year normal and the 45th coolest on record. Preliminary statewide average total precipitation for August was 2.01 inches, 1.58 inches below than the 30-year normal and the 15th driest on record.

  • Cool, Dry August for Illinois

    Sep 3, 2008 12:30 am

    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).

  • dry cracked soil

    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.

  • August was Cool and Dry in Illinois

    Sep 5, 2017 3:45 pm

    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.

  • 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).

  • Summer drought may dull fall color

    Sep 14, 2012 2:00 pm

  • 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.

  • Illinois has dry soils in mid-September

    Sep 18, 2017 2:00 pm

    Illinois received 0.20 inches of rain for the month as of September 17, 1.59 inches below the long-term average. Dry weather in August and September has led to low soil moisture across Illinois.

  • frost on branches

    State Climatologist looks at fall freeze data

    Sep 25, 2019 8:45 am

    Due to significant planting delays across most of the Midwest this year, State Climatologist Trent Ford has heard many concerns about an early fall freeze and its potential effects on immature crops. Even in normal growing seasons, an early fall freeze can cause considerable impacts and yield losses for crops.

  • sun

    September heat, flooding, and drought

    Oct 1, 2019 2:15 pm

    September 2019 was tied for the fourth-warmest September for Illinois (state average temperatures back to 1895), and the warmest September since 1933. Precipitation varied tremendously from north to south across the state.

  • 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 brought mild, dry conditions to Illinois

    Oct 3, 2022 3:00 pm

    Illinoisans experienced mild temperatures in the first half of September, followed by summer-like conditions and then a cooler week to finish off the month, according to Illinois State Climatologist Trent Ford at the University of Illinois’ Illinois State Water Survey. The average state rainfall amount was slightly below normal.

  • September, Warm and Dry across Illinois

    Oct 4, 2007 7:30 pm

    "A uniformly warm, dry September speeded fall harvest but further increased drought conditions in southern and central Illinois. Statewide rainfall was 1.71 inches, 1.48 inches below normal, and the 12th driest September since 1895. Temperatures in Illinois averaged 69.8 degrees, 3.6 degrees above normal, and the 15th warmest September 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.

  • 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).

  • September Brings Uneven Rainfall across State

    Oct 6, 2009 10:00 am

    Based on preliminary data in Illinois, the statewide average rainfall for September was 2.4 inches, 0.8 inches below normal. This breaks the string of months with above normal precipitation that started in February 2009 and ended in August, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • September Experienced Near Normal Temperatures

    Oct 7, 2010 12:00 am

    Illinois experienced temperatures close to normal for September. The statewide average temperature was 66.8 degrees, just 0.6 degrees above normal, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • 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.

  • Report describes water resources available in Middle Illinois River region

    Oct 10, 2018 11:30 am

    A report on the water resources available in the Middle Illinois River water supply planning region is now available (ISWS Contract Report 2018-02). The results of the study are generally positive for the region, with abundant water available for most needs.

  • Soil moisture improved in October in Illinois

    Oct 19, 2017 2:30 pm

    Soil moisture levels have improved throughout the state during the first half of October, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program manager at University of Illinois’ Illinois State Water Survey.

  • brown fallen leaves

    October broke records for both heat and cold

    Nov 1, 2019 2:15 pm

    State Climatologist Trent Fords reports that Illinois saw highly variable temperatures in October, with record-breaking heat in the early part of the month and record-breaking cold in the latter part.

  • 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.

  • 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.

  • October was the 10th wettest in Illinois

    Nov 2, 2017 2:30 pm

    The statewide average precipitation in Illinois for October was 4.94 inches, 1.70 inches above normal, and the 10th wettest October since 1895, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey.

  • October Was Warm and Dry in Illinois

    Nov 3, 2010 12:00 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).

  • A Dry October in Illinois

    Nov 4, 2011 12:45 am

  • 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.