Lombard (IL) Temperatures: Monthly Averages and Year-Round Insights

On this page, we’ll explore Lombard’s temperature statistics in detail, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in the United States of America.

Monthly Temperature Averages

Depending on the time of the year, temperatures range from comfortable to very cold in Lombard. Typically, maximum daytime temperatures range from a warm 29°C in July to a very cold -0°C in the coolest month, January. Nights are cooler, with temperatures generally dropping to -9°C, particularly during the colder months.

The chart below illustrates the average maximum day and minimum night temperatures in Lombard by month:

The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM. During this time the sun's heating effect is the strongest. July, the city’s warmest month receives 319 hours of sunshine.

The chart below shows the average temperature throughout the year:

January, the city’s coldest month, receives about 51 mm of rainfall spread over roughly 10 days. For more information, please visit our Lombard Precipitation page.

Annual Temperatures in the United States of America Compared

The map below shows the annual temperature across the United States of America. You can also select the different months in case you are interested in a specific month.

Annual

Annual

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Legend

very warm

warm

pleasant

moderate

cold

very cold

Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

Lombard Temperatures Compared World Wide

Lombard’s average annual maximum temperature is 15°C. Let’s compare this with some popular tourist destinations:

In Barcelona, Spain, the average annual temperature is around 21°C, resulting in warm summers and mild winters throughout the year.

Meanwhile, Queenstown, New Zealand, the average annual temperature is significantly lower at 10°C, with mild summers and cold winters.

Boston, USA, experiences seasonal shifts similar to New York, with an average annual temperature of 16°C.

In Tokyo, Japan, the average annual temperature is 21°C, expect warmer summers and milder winters than Amsterdam.

How does the temperature feel?

Humidity is an essential factor in how you experience temperature. When a warm period is accompanied by high humidity, it results in a higher perceived temperature. This is especially true when temperatures exceed 25°C, as it can cause greater discomfort.

On the other hand, in cooler months, especially when temperatures dip below 10°C, high humidity can intensify the cold. This makes the air feel much colder than it really is.

In Lombard, during the coolest month, January, you will experience 72% humidity, which is considered high. This is accompanied by an average maximum temperature of -0°C. In the warmest month, July, the humidity is 68% combined with an average maximum temperature of 29°C, which creates a high-feel temperature. Explore our detailed page on humidity levels for further details.

How are these Temperatures Measured?

Generally, temperature data depicting climate is usually given over a 30-year average in order to reduce short-term fluctuations and reveal better long-term trends in climate conditions.

This temperature data is taken from land-based thermometers, ocean buoys, ships, and satellites. These measurements are transmitted to weather stations and climate centers around the globe where they are processed, averaged, and analyzed in order to monitor the trends and create climate models.

Temperatures in the Mountains

Although not all regions have mountains, elevated areas exhibit distinct temperature variations.

Sun Exposure: Sunlit slopes tend to be warmer, while shaded areas remain cooler.
Altitude Effects: Temperatures drop by approximately 6°C for every 1,000 meters of elevation, creating distinct microclimates.

For more detailed information about Lombard’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Lombard climate page.