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  2. Savanna, IL Weather - Hourly Forecasts and Local Weather ...

    www.aol.com/.../illinois/savanna-2489302

    Get the Savanna, IL local weather forecast by the hour and the next 10 days. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways ...

  3. List of ecoregions in Illinois - Wikipedia

    en.wikipedia.org/wiki/List_of_ecoregions_in_Illinois

    Illinois' ecology is in a land area of 56,400 square miles (146,000 km 2); the state is 385 miles (620 km) long and 218 miles (351 km) wide and is located between latitude: 36.9540° to 42.4951° N, and longitude: 87.3840° to 91.4244° W, [1] with primarily a humid continental climate.

  4. Climate of Illinois - Wikipedia

    en.wikipedia.org/wiki/Climate_of_Illinois

    As a result, the official record-lowest temperature for the state was −36 °F (−37.8 °C) recorded at Congerville on 5 January 1999. [11] In 2019, the January North American Cold Wave struck Illinois. This resulted in a new record low temperature, −38 °F (−38.9 °C), recorded on January 31, 2019, at Mount Carroll.

  5. Köppen climate classification - Wikipedia

    en.wikipedia.org/wiki/Köppen_climate_classification

    This classification provides an efficient way to describe climatic conditions defined by temperature and precipitation and their seasonality with a single metric. Because climatic conditions identified by the Köppen classification are ecologically relevant, it has been widely used to map the geographic distribution of long-term climate and ...

  6. Savanna, Illinois - Wikipedia

    en.wikipedia.org/wiki/Savanna,_Illinois

    Savanna is a city in Carroll County, Illinois, United States. The population was 2,783 at the 2020 census. The population was 2,783 at the 2020 census. Savanna is located along the Mississippi River at the mouth of the Plum River .

  7. Geography of Illinois - Wikipedia

    en.wikipedia.org/wiki/Geography_of_Illinois

    Köppen climate types of Illinois, using 1991-2020 climate normals. Illinois has a continental climate, with large temperature extremes not moderated by either mountains or oceans. Weather is influenced primarily by cold Canadian Arctic air in the winter, and warm, humid air from the Gulf of Mexico in the summer. High temperatures in the south ...

  8. Climate change in Illinois - Wikipedia

    en.wikipedia.org/wiki/Climate_change_in_Illinois

    According to a 2021 report from The Nature Conservancy, the average daytime temperature in Illinois has increased by 1 to 2 °F (0.6 to 1.2 °C) over the historical average in the last 100 years. Additionally, the nighttime minimum temperatures are rising at a faster rate than the daytime high temperatures.

  9. Humid subtropical climate - Wikipedia

    en.wikipedia.org/wiki/Humid_subtropical_climate

    A humid subtropical climate is a subtropical-temperate climate type, characterized by long and hot summers, and cool to mild winters. These climates normally lie on the southeast side of all continents (except Antarctica), generally between latitudes 25° and 40° and are located poleward from adjacent tropical climates, and equatorward from either humid continental (in North America and Asia ...