United States · 1991–2020 normal

Penns Grove in
December.

Typical December weather in Penns Grove: 6.9°C by day, -0.9°C at night, 109 mm of rain over 8.7 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high6.9°C
Typical low-0.9°C
Rain109 mm
Wet days8.7

Comfort score 5 this month (September leads the year at 79). Daylight is calculated as 9 h 22 from latitude 39.73°.

Event window

Frost-level nights in December

The measured night-time normal is -0.9°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4503544
NOAA station
USC00079605 · WILMINGTON PORTER RSCH
Station distance
8 km from the place centre
Coverage
Strong coverage · 29 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.