Climate in Peoria Illinois

From freezing winters to sweltering summers, Peoria experiences it all. But what exactly makes the weather here so unpredictable? Well, let’s take a closer look at the geographical location, temperature, and precipitation patterns to uncover the fascinating climate of Peoria.

Get ready to discover a world where the weather is never boring and always keeps you guessing.

Key Takeaways

  • Peoria has a humid continental climate with distinct seasons and significant temperature ranges.
  • Winter temperatures in Peoria are cold, with average temperatures below freezing and the potential for extreme cold temperatures.
  • Peoria receives an average of 26.3 inches of snowfall annually, with the highest snowfall occurring during the winter months.
  • Precipitation in Peoria is highest in the spring and summer, with the lowest levels occurring during the winter season.

Climate in Peoria Illinois

What is the climate like in Peoria, Illinois?

Peoria has a humid continental climate, characterized by distinct seasons and significant temperature ranges. In terms of temperature, the monthly daily mean ranges from 22.5 °F to 75.2 °F. This means that winters are cold, with average temperatures below freezing, while summers can be hot and humid.

Weather patterns in Peoria exhibit snowfall during the winter months, with an average of 26.3 inches. However, snowfall can vary from year to year.

Precipitation, averaging 36 inches, primarily occurs in the spring and summer, while winter experiences the lowest precipitation levels.

Peoria has experienced extreme temperature ranges, from -27 °F in January 1884 to 113 °F in July 1936.

Understanding these climate trends is crucial to assess the climate impact and potential climate changes in Peoria, Illinois.

Geographical Location

Peoria, Illinois is located in the central part of the state, along the Illinois River. The geographical location of Peoria has a significant impact on its climate patterns and weather variations.

Here are four key points highlighting the influence of local geography on Peoria’s climate:

  1. Continental Climate: Peoria experiences a humid continental climate, characterized by cold, snowy winters and hot, humid summers.

  2. Temperature Range: Monthly mean temperatures in Peoria range from 22.5 °F (-5.3 °C) in winter to 75.2 °F (24.0 °C) in summer, showcasing the regional climate variations.

  3. Snowfall: The city receives an average of 26.3 inches (67 cm) of snowfall annually, with significant variation from year to year.

  4. Precipitation: Peoria sees an average annual precipitation of 36 inches (914 mm), with peak rainfall occurring in spring and summer, and the lowest amounts in winter.


Peoria experiences significant seasonal temperature variations, with cold winters and hot summers. The average monthly daily mean temperatures range from 22.5 °F (-5.3 °C) to 75.2 °F (24.0 °C), reflecting the contrasting climate throughout the year.

Additionally, extreme temperatures have been recorded in the past, ranging from a bone-chilling -27 °F (-33 °C) in January 1884 to a scorching 113 °F (45 °C) in July 1936.

Seasonal Temperature Variations

With seasonal temperature variations, Peoria experiences cold, snowy winters and hot, humid summers due to its humid continental climate. The average temperatures in Peoria range from 22.5 °F (-5.3 °C) in winter to 75.2 °F (24.0 °C) in summer, creating a stark contrast between the seasons.

The temperature fluctuations can be extreme, with records ranging from -27 °F (-33 °C) in January 1884 to 113 °F (45 °C) in July 1936. These temperature trends greatly impact agriculture in the region, as the cold winters require careful planning and preparation, while the hot summers can stress crops and increase water demand.

It’s essential for farmers in Peoria to adapt to these seasonal temperature variations in order to maintain successful agricultural practices.

Extreme Temperatures

Extreme temperatures in Peoria, Illinois, greatly impact the region’s climate. Records range from -27 °F (-33 °C) in January 1884 to 113 °F (45 °C) in July 1936, highlighting the significant variations throughout the year.

Heat waves can bring scorching temperatures, while cold snaps can plunge the region into extreme cold. These events have a profound effect on the local climate and weather patterns.

It’s important to note that these temperature records provide valuable insights into past climate conditions. In the context of climate change, understanding these extreme temperature fluctuations is crucial for predicting future weather patterns and their potential impacts on the region.


You experience an average annual precipitation of 36 inches (914 mm) in Peoria, Illinois.

The precipitation varies throughout the year, with peak levels occurring in the spring and summer, while winter sees the lowest levels.

This seasonal pattern of precipitation contributes to the overall climate of the region.

Annual Precipitation

Annual precipitation in Peoria, Illinois varies throughout the year, peaking in the spring and summer and reaching its lowest point in winter. Here is a breakdown of the precipitation patterns in Peoria:

  1. Spring (March to May): This is the wettest season, with an average rainfall of 11 inches. The arrival of spring brings frequent showers that help replenish the soil and support plant growth.

  2. Summer (June to August): The average rainfall during summer is around 9 inches. Thunderstorms are common during this time, contributing to the precipitation levels and providing much-needed water for crops.

  3. Fall (September to November): Fall experiences an average rainfall of 8 inches. As the temperature starts to cool down, the precipitation becomes less frequent.

  4. Winter (December to February): Winter is the driest season in Peoria, with an average rainfall of 4 inches. The cold temperatures limit the amount of moisture in the air, resulting in minimal precipitation.

These annual rainfall variations have a significant impact on agriculture, ensuring sufficient water supply for crops during the growing season. Historical rainfall data helps farmers make informed decisions about irrigation and crop management.

Seasonal Precipitation Patterns

Seasonal precipitation patterns in Peoria, Illinois exhibit distinct variations throughout the year, with the highest levels occurring in the spring and summer months. Rainfall distribution follows a consistent pattern, with an average of 36 inches (914 mm) of precipitation annually. However, it’s important to note that climate change has had an impact on these patterns.

Drought conditions have become more frequent, leading to challenges for agriculture and water management strategies in the region. The increased variability in precipitation poses risks for crop production and water availability for both farmers and residents. Drought conditions can lead to water scarcity, affecting irrigation systems and ultimately crop yields. Furthermore, the unpredictability of rainfall patterns makes it difficult for farmers to plan and manage their crops effectively.

In response to these challenges, water management strategies have become crucial for Peoria. Implementation of efficient irrigation systems, conservation practices, and water storage technologies can help mitigate the effects of drought and ensure sustainable water supply for agriculture and other sectors.


In summary, Peoria, Illinois experiences a humid continental climate characterized by cold, snowy winters and hot, humid summers, with average monthly temperatures ranging from 22.5 °F (−5.3 °C) to 75.2 °F (24.0 °C).

This climate has several implications for the region, including:

  1. Winter weather: Peoria sees significant snowfall, averaging 26.3 inches (67 cm) annually. This can impact transportation and daily activities, requiring residents to be prepared for winter conditions.

  2. Summer heat: The hot, humid summers with temperatures reaching up to 75.2 °F (24.0 °C) can be uncomfortable for some, necessitating the use of air conditioning and other cooling methods.

  3. Seasonal precipitation: Precipitation peaks in the spring and summer, averaging 36 inches (914 mm) annually. This can have implications for agriculture, water management, and outdoor activities.

  4. Climate variability: Peoria’s climate exhibits a wide range of extremes, from −27 °F (−33 °C) in winter to 113 °F (45 °C) in summer. Understanding this variability is crucial for future research and preparedness.

Based on this comparative analysis, it’s recommended that residents and local authorities take appropriate measures to adapt to the climate conditions, ensuring safety, comfort, and efficient resource management.

Further research should focus on understanding the long-term trends and potential impacts of climate change on Peoria’s climate.