What is the weather like in Boston vs Chicago in May?

In May, Boston averages 20°C high / 10°C low with about 78 mm of rain; Chicago averages 20°C high / 10°C low with about 109 mm.

Boston vs Chicago in May

Boston and Chicago are nearly tied in May — 86 vs 83 on SeasonMap's comfort score. Boston is nice, a little rain, clean air; Chicago is nice, rainy, muggy air.

Boston vs Chicago — May climate, side by side

	Boston	Chicago
Comfort score	86/100 (A)	83/100 (A)
Feels-like high	19°C	19°C
Avg high / low	20° / 10°	20° / 10°
Rainfall	78 mm	109 mm
Rainy days	9	11
Humidity	73%	75%
Air quality (AQI)	43	55

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Boston vs Chicago in May — FAQ

Is May better in Boston or Chicago?: Boston and Chicago are nearly tied in May — 86 vs 83 on SeasonMap's comfort score. Boston is nice, a little rain, clean air; Chicago is nice, rainy, muggy air.
What is the weather like in Boston vs Chicago in May?: In May, Boston averages 20°C high / 10°C low with about 78 mm of rain; Chicago averages 20°C high / 10°C low with about 109 mm.