United States · 1991–2020 normal

Pen Argyl in
December.

Typical December weather in Pen Argyl: 5.5°C by day, -4.2°C at night, 104 mm of rain over 9.2 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high5.5°C
Typical low-4.2°C
Rain104 mm
Wet days9.2

Comfort score 5 this month (September leads the year at 76). Daylight is calculated as 9 h 15 from latitude 40.87°.

Event window

Frost-level nights in December

The measured night-time normal is -4.2°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 5205339
NOAA station
USC00280734 · BELVIDERE BRG
Station distance
15.1 km from the place centre
Coverage
Strong coverage · 27 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.