United States · 1991–2020 normal

Portland in
December.

Typical December weather in Portland: 20.3°C by day, 9.4°C at night, 37 mm of rain over 4 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high20.3°C
Typical low9.4°C
Rain37 mm
Wet days4

Comfort score 76 this month (March leads the year at 95). Daylight is calculated as 10 h 23 from latitude 27.88°. Open-water sea temperature is 20.3°C (34 km from the place centre).

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4720131
NOAA station
USC00412011 · CORPUS CHRISTI NWS
Station distance
20.9 km from the place centre
Coverage
Good coverage · 17 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.