United States · 1991–2020 normal

Ottumwa in
May.

Typical May weather in Ottumwa: 22.3°C by day, 10.9°C at night, 130 mm of rain over 10.6 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high22.3°C
Typical low10.9°C
Rain130 mm
Wet days10.6

Comfort score 67 this month (September leads the year at 82). Daylight is calculated as 14 h 27 from latitude 41.02°.

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 · 29 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.