Climate Comparison

Boston vs Washington DC in September

How the climate for Boston and Washington DC typically compares in September.

Boston versus Washington DC weather metrics for September
Climate MetricBostonUnited StatesBestWashington DCUnited States
Overall score94/10084/100
Avg high temp72°F80°F
How it feelsComfortableComfortable
Rain days810
Sunshine9.1h9.2h

Annual Comparison

  • Boston
  • Washington DC

Avg. high temperature (°F)

Typical daytime high you can expect.

30°40°50°60°70°80°90°100°JanFebMarAprMayJunJulAugSepOctNovDec72°80°

Avg. high temperature (°F)

Typical daytime high you can expect.

30°40°50°60°70°80°90°100°JanFebMarAprMayJunJulAugSepOctNovDec72°80°

Precipitation (in)

Monthly precipitation patterns across the year.

0.02.04.06.0JanFebMarAprMayJunJulAugSepOctNovDec3.44.2

Sunshine hours (h/day)

Average hours of sunshine per day.

0.02.04.06.08.010.012.0JanFebMarAprMayJunJulAugSepOctNovDec9.19.2

Air feel (%)

Share of time the air feels humid or very humid.

0%5%10%JanFebMarAprMayJunJulAugSepOctNovDec

Go deeper

Full climate detail for Boston→Full climate detail for Washington DC→
Compare Boston in other monthsAugustOctober