Boston and Chicago — Comparison weather

Comparison weather

Learn where is warmer and colder where in any month of the year. Compare the day and night temperature, water temperature and precipitation. Where the sun shines longer, and where the rains.

You have chosen to compare the two cities:

— Boston (United States)
— Chicago (United States)

Most sunny months

Boston

Chicago

August		17 days
July		16 days
June		14 days

July		17 days
June		16 days
August		16 days

The warmest months

July		27.8 °C
August		27.2 °C
June		23.4 °C

July		27 °C
August		26.7 °C
June		23.3 °C

The warmest water (sea, ocean)

August		19.9 °C
July		19.3 °C
September		17.9 °C

August		20.8 °C
July		19.6 °C
September		18.6 °C

The coldest months

January		0.7 °C
February		1.5 °C
December		4.1 °C

January		-2 °C
February		-1.1 °C
December		2 °C

Rainiest months

June		5 days
April		5 days
December		4 days

June		8 days
May		7 days
July		6 days

Most windy months

January		17.8 km / h
March		17.5 km / h
February		17.2 km / h

November		20.1 km / h
January		19.6 km / h
February		19.3 km / h