Chicago Weather

2026 (This Year)

Historical data
Average Temperature
15.2 °C
High
/
7.1 °C
Low
796.0mm
Precipitation
35.8°C
Peak Temp
-23.0°C
Low Temp
223
Days Count

Seasonal Breakdown

Average temperatures and precipitation by season

Spring

92 days
15.7°C
Avg High
/
6.3°C
Avg Low
Precipitation
292.1mm

Summer

72 days
26.3°C
Avg High
/
19.3°C
Avg Low
Precipitation
436.4mm

Winter

59 days
0.9°C
Avg High
/
-6.5°C
Avg Low
Precipitation
67.5mm

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

Monthly Breakdown

Average temperatures and precipitation by month

January

31 days
-2.1°C / -9.2°C
Avg High / Low
Precipitation
50.9mm

February

28 days
4.3°C / -3.5°C
Avg High / Low
Precipitation
16.6mm

March

31 days
11.0°C / 0.9°C
Avg High / Low
Precipitation
94.8mm

April

30 days
16.4°C / 6.9°C
Avg High / Low
Precipitation
163.7mm

May

31 days
19.7°C / 11.0°C
Avg High / Low
Precipitation
33.6mm

June

30 days
24.6°C / 17.3°C
Avg High / Low
Precipitation
181.7mm

July

31 days
28.0°C / 20.8°C
Avg High / Low
Precipitation
106.0mm

August

11 days
26.3°C / 20.3°C
Avg High / Low
Precipitation
148.7mm

Temperature Trends

Daily high, low, and average

Weather Extremes

Most notable conditions during this period

Period High

35.8°C
Wednesday, July 1

Coolest Day

-14.1°C
Monday, January 26

Period Low

-23.0°C
Friday, January 23
Progress 0%
0 / 0 years
Analyzing Historical Data

Analyzing 15 years of historical data...

Analysis Period

Years: 15
Location: Chicago
Period: 2026-01-01 to 2026-08-11

Weather Insights

Key findings from analysis for selected period

Extreme Temperature Variations

Worth noting

Temperature extremes from -23.0°C to 35.8°C. 73 cold days and 1 very hot day.

🌦️

Moderate Rainfall Period

Info

Moderate rainfall during this period (39% of days).

📅

Seasonal Weather Patterns

Info
Rainfall Patterns:
Wettest: June (182mm), April (164mm)
Driest: February (17mm), May (34mm)

Temperature Patterns (Monthly Averages):
Hottest months: July (28.0°C), June (24.6°C)
Coolest months: January (-2.1°C), February (4.3°C)

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

27 Exceptional Weather Events (showing top 3)

Info

The 3 most extreme of 27 notable days in this period:

Jul 1 Heat

Hottest day: 35.8°C

Jan 23 Cold

Coldest night: -23.0°C

Jan 1 Cold

Very cold night: -11.8°C

10 Extreme Heat Index Days

Worth noting

10 days with dangerous heat index levels (44.6°C average). Temperature 32.9°C combined with 74% humidity creates hazardous conditions.

High Humidity Levels

Info

Average humidity of 73% indicates persistently moist air conditions. Heat sensation amplified during warm periods (15.2°C average temperature). Humidity varied significantly (42%-98% 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.

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