ClimateAverages

Hillsboro Weather in September

JanFebMarAprMayJunJulAugSepOctNovDec
September daytime high
23.6°C
September overnight low
9.6°C
September average
16.5°C

In September, Hillsboro typically sees daytime highs of 23.6°C and overnight lows around 9.6°C. Compared to the annual average high of 16.4°C, September runs +7.2°C.

vs. annual avg high
+7.2°C
Rank among 12 months
#3 warmest
Hottest year overall
2014

Where September ranks in Hillsboro

JanFebMarAprMayJunJulAugSep24°OctNovDec

FAQ

What is the average temperature in Hillsboro in September?

September in Hillsboro averages a daytime high of 23.6°C and an overnight low of 9.6°C.

Is September warm or cold in Hillsboro?

September runs +7.2°C compared to Hillsboro's annual average high of 16.4°C, ranking #3 of 12 months by warmth.

What should I pack for Hillsboro in September?

Plan for daytime highs near 23.6°C and cooler evenings around 9.6°C.

Other months for Hillsboro

JanuaryFebruaryMarchAprilMayJuneJulyAugustOctoberNovemberDecember

September in nearby cities

PortlandSalemEugeneGreshamBeavertonBendMedfordSpringfieldCorvallisAlbanyTigard