United States · 1991–2020 normal
Mercer Island in
January.
Typical January weather in Mercer Island: 9°C by day, 2.9°C at night, 131 mm of rain over 15.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high9°C
Typical low2.9°C
Rain131 mm
Wet days15.2
Comfort score 5 this month (July leads the year at 96). Daylight is calculated as 8 h 50 from latitude 47.57°.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5803139
- NOAA station
- USW00024234 · SEATTLE BOEING FLD
- Station distance
- 7.5 km from the place centre
- Coverage
- Good coverage · 22 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
From evidence to a booked trip
Know the month.
Then plan the trip.
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