Chicago Weather

2025 (Full Year)

Historical data
Average Temperature
14.6 °C
High
/
7.0 °C
Low
832.3mm
Precipitation
35.6°C
Peak Temp
-21.9°C
Low Temp
365
Days Count

Seasonal Breakdown

Average temperatures and precipitation by season

Spring

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

Summer

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

Autumn

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

Winter

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

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
-1.8°C / -8.9°C
Avg High / Low
Precipitation
60.3mm

February

28 days
0.4°C / -6.6°C
Avg High / Low
Precipitation
23.7mm

March

31 days
11.0°C / 1.6°C
Avg High / Low
Precipitation
94.1mm

April

30 days
14.1°C / 5.5°C
Avg High / Low
Precipitation
64.7mm

May

31 days
17.4°C / 9.4°C
Avg High / Low
Precipitation
71.3mm

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

September

30 days
23.9°C / 16.1°C
Avg High / Low
Precipitation
38.5mm

October

31 days
17.8°C / 11.0°C
Avg High / Low
Precipitation
56.3mm

November

30 days
9.1°C / 2.6°C
Avg High / Low
Precipitation
73.7mm

December

31 days
0.7°C / -6.2°C
Avg High / Low
Precipitation
80.7mm

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

-15.4°C
Tuesday, January 21

Period Low

-21.9°C
Tuesday, February 18

Compare with historical weather

Load the same period from the previous 15 years.

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

Jun 24 Heat

Very hot day: 35.2°C

Feb 18 Cold

Coldest night: -21.9°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.

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