Chicago Weather

2025 (Full Year)

Average Temperature
14.6 °C
High
/
7.0 °C
Low
832.3mm
Rain Volume
35.6°C
Peak Temp
-21.9°C
Low Temp
365
Days Count

Seasonal Breakdown

Average temperatures and rainfall by season

Spring

92 days
14.2°C
Avg High
/
5.5°C
Avg Low
Rainfall
230.1mm

Summer

92 days
27.2°C
Avg High
/
19.4°C
Avg Low
Rainfall
269.0mm

Autumn

91 days
16.9°C
Avg High
/
9.9°C
Avg Low
Rainfall
168.5mm

Winter

90 days
-0.3°C
Avg High
/
-7.3°C
Avg Low
Rainfall
164.7mm

Seasons based on meteorological calendar: Spring (Mar-May), Summer (Jun-Aug), Autumn (Sep-Nov), Winter (Dec-Feb)

✈️ Travel Recommendations

Best visiting months: September, August, June

Based on optimal temperature and rainfall balance from historical weather patterns

Temperature Trends

Daily high, low, and average

Weather Extremes

Most notable conditions during this period

Period High

35.6°C
Monday, June 23
avg daily high: 14.6°C

Coolest Day

-15.4°C
Tuesday, January 21
avg daily high: 14.6°C

Period Low

-21.9°C
Tuesday, February 18
avg night low: 7.0°C
Progress 0%
0 / 0 years
Analyzing Historical Data

Analyzing 15 years of historical data...

Analysis Period

Years: 15
Location: Chicago
Period: 2025-01-01 to 2025-12-31

Weather Insights

Key findings from analysis for selected period

Extreme Temperature Variations

Worth noting

Temperature extremes from -21.9°C to 35.6°C. 131 cold days and 3 very hot days.

📅

Seasonal Weather Patterns

Info
Rainfall Patterns:
Wettest: June (124mm), July (103mm)
Driest: February (24mm), September (39mm)

Temperature Patterns (Monthly Averages):
Hottest months: July (28.6°C), June (27.0°C)
Coolest months: January (-1.8°C), February (0.4°C)

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

43 Exceptional Weather Events (showing top 3)

Info

The 3 most extreme of 43 notable days in this period:

Jun 23 Heat

Hottest day: 35.6°C — the average daily high in this period was 14.6°C

Jun 24 Heat

Very hot day: 35.2°C — the average daily high in this period was 14.6°C

Feb 18 Cold

Coldest night: -21.9°C — the average night low in this period was 7.0°C

15 Extreme Heat Index Days

Worth noting

15 days with dangerous heat index levels (44.5°C average). Temperature 33.5°C combined with 69% humidity creates hazardous conditions.

High Humidity Levels

Info

Average humidity of 72% indicates persistently moist air conditions. Heat sensation amplified during warm periods (14.6°C average temperature). Humidity varied significantly (37%-96% range).

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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.

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