United States · 1991–2020 normal

Clear Lake in
December.

Typical December weather in Clear Lake: -1.1°C by day, -10.1°C at night, 32 mm of rain over 5.7 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high-1.1°C
Typical low-10.1°C
Rain32 mm
Wet days5.7

Comfort score 5 this month (August leads the year at 77). Daylight is calculated as 9 h 00 from latitude 43.14°.

Event window

Frost-level nights in December

The measured night-time normal is -10.1°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4851935
NOAA station
USW00014940 · MASON CITY MUNI AP
Station distance
4.7 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.