United States · 1991–2020 normal

Ottumwa in
January.

Typical January weather in Ottumwa: -0.3°C by day, -9.7°C at night, 26 mm of rain over 4.8 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high-0.3°C
Typical low-9.7°C
Rain26 mm
Wet days4.8

Comfort score 5 this month (September leads the year at 82). Daylight is calculated as 9 h 31 from latitude 41.02°.

Event window

Frost-level nights in January

The measured night-time normal is -9.7°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4870380
NOAA station
USW00014950 · OTTUMWA IND AP
Station distance
9.4 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.