United States · 1991–2020 normal

Rockwell City in
December.

Typical December weather in Rockwell City: 0.1°C by day, -9.5°C at night, 31 mm of rain over 4.6 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high0.1°C
Typical low-9.5°C
Rain31 mm
Wet days4.6

Comfort score 5 this month (September leads the year at 83). Daylight is calculated as 9 h 05 from latitude 42.40°.

Event window

Frost-level nights in December

The measured night-time normal is -9.5°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4873426
NOAA station
USC00137161 · ROCKWELL CITY
Station distance
0.4 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.