Chicago Weather

2025 Summer

Historical data
Average Temperature
27.2 °C
High
/
19.4 °C
Low
269.0mm
Precipitation
35.6°C
Peak Temp
8.5°C
Low Temp
92
Days Count

Monthly Breakdown

Average temperatures and precipitation by month

June

30 days
27.0°C / 17.7°C
Avg High / Low
Precipitation
124.0mm

July

31 days
28.6°C / 21.0°C
Avg High / Low
Precipitation
102.5mm

August

31 days
26.2°C / 19.3°C
Avg High / Low
Precipitation
42.5mm

Temperature Trends

Daily high, low, and average

Weather Extremes

Most notable conditions during this period

Period High

35.6°C
Monday, June 23

Coolest Day

16.4°C
Sunday, June 1

Period Low

8.5°C
Sunday, June 1

Compare with historical weather

Load the same period from the previous 15 years.

Weather Insights

Key findings from analysis for selected period

Variable with Hot Extremes

Worth noting

Average of 27.2°C but 3 very hot days (35.6°C peak).

📅

Seasonal Weather Patterns

Info
Rainfall Patterns:
Wettest: June (124mm), July (103mm)
Driest: August (43mm), July (103mm)

Temperature Patterns (Monthly Averages):
Hottest months: July (28.6°C), June (27.0°C)
Coolest months: August (26.2°C), June (27.0°C)

Travel Recommendations:
Best visiting months: August, June (optimal temperature and rainfall balance).
⚠️

4 Exceptional Weather Events (showing top 3)

Info

The 3 most extreme of 4 notable days in this period:

Jun 23 Heat

Hottest day: 35.6°C

Jun 24 Heat

Very hot day: 35.2°C

Jun 4 Rain

Heavy rain: 31.8mm in one day

14 Extreme Heat Index Days

Worth noting

14 days with dangerous heat index levels (44.8°C average). Temperature 33.6°C combined with 69% humidity creates hazardous conditions.

High Humidity Levels

Info

Average humidity of 74% indicates persistently moist air conditions. Heat sensation amplified during warm periods (27.2°C average temperature). Humidity varied significantly (37%-92% range).

Related Weather Data

⚡ Quick Actions

WeatherWhen

Explore historical weather data from around the world. Compare cities, analyze climate trends, and discover weather patterns across different time periods.

🌍
Global Weather Data

Features

  • Historical weather data
  • City comparisons
  • Interactive charts
  • Climate analysis
  • Weather trends

Data Source

Weather data provided by Open-Meteo, offering reliable historical weather information from meteorological stations worldwide.

Data accuracy and availability may vary by location and time period.

© 2025 WeatherWhen. Historical weather data analysis tool.

Home • Browse Cities • Powered by Open-Meteo