Japan · 1991–2020 normal
Iitomi in
December.
Typical December weather in Iitomi: 11.5°C by day, -0.4°C at night, 46 mm of rain over 4.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high11.5°C
Typical low-0.4°C
Rain46 mm
Wet days4.2
Comfort score 28 this month (May leads the year at 80). Daylight is calculated as 9 h 46 from latitude 35.43°. Open-water sea temperature is 18.0°C (38 km from the place centre).
Event window
Frost-level nights in December
The measured night-time normal is -0.4°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 1861840
- NOAA station
- JA000047638 · KOFU
- Station distance
- 28 km from the place centre
- Coverage
- Good coverage · 17 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.