Best year time to visit Arlington Heights

General weather information about Arlington Heights

Average annual temperature is 13.2 °C

Absolute maximum temperature: 36.2 °C

Absolute minimum temperature: -13.7 °C

Number of sunny days: 205 days

Number of rainy days: 151 days

Number of snow days: 9 days

* Weather data for Arlington Heights United States is based on climate observations for 2026 year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	19.0	17.1	21.7	26.9	31.2	32.8	35.4	36.2	31.5	29.4	24.6	16.2
Average daytime temperature (°C)	6.4	9.2	11.1	19.1	24.9	29.3	29.6	28.3	26.1	19.1	12.5	8.4
Average temperature (°C)	1.7	3.1	5.3	12.2	18.6	23.1	24.5	23.5	20.6	14.1	6.9	4.5
Average night temperature (°C)	-1.4	-1.4	1.0	6.5	12.7	17.0	19.9	19.2	15.8	10.1	2.6	1.8
Absolute minimum temperature (°C)	-13.6	-13.7	-9.6	-1.0	4.3	11.0	15.7	12.1	10.0	-2.1	-8.7	-7.0

The best time to visit Arlington Heights during the most sunny months:

The largest precipitation sum in Arlington Heights is at

July — 175(mm)

August — 104(mm)

When is the best time to visit Arlington Heights?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Arlington Heights.

What is the weather like in Arlington Heights?

See average temperature, rainfall and daylight hours for Arlington Heights by month in the table above.

How many sunny days does Arlington Heights have?

The monthly weather statistics above show sunshine and rainfall patterns for Arlington Heights throughout the year.