United States · 1991–2020 normal

Waterloo in
May.

Typical May weather in Waterloo: 22.3°C by day, 9.6°C at night, 120 mm of rain over 10.6 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high22.3°C
Typical low9.6°C
Rain120 mm
Wet days10.6

Comfort score 66 this month (September leads the year at 82). Daylight is calculated as 14 h 29 from latitude 41.43°.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4927928
NOAA station
USC00123207 · GARRETT 1 S
Station distance
13.5 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.