United States · 1991–2020 normal

Saint Helen in
December.

Typical December weather in Saint Helen: 0.7°C by day, -7.7°C at night, 55 mm of rain over 9 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high0.7°C
Typical low-7.7°C
Rain55 mm
Wet days9

Comfort score 5 this month (June leads the year at 77). Daylight is calculated as 8 h 52 from latitude 44.36°.

Event window

Frost-level nights in December

The measured night-time normal is -7.7°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 5008207
NOAA station
USC00208800 · W BRANCH 3SE
Station distance
20.6 km from the place centre
Coverage
Strong coverage · 30 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.