United States · 1991–2020 normal
Sullivan in
December.
Typical December weather in Sullivan: 4.2°C by day, -4.4°C at night, 66 mm of rain over 7 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high4.2°C
Typical low-4.4°C
Rain66 mm
Wet days7
Comfort score 5 this month (September leads the year at 80). Daylight is calculated as 9 h 23 from latitude 39.60°.
Event window
Frost-level nights in December
The measured night-time normal is -4.4°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4250862
- NOAA station
- USC00118389 · SULLIVAN 3S
- Station distance
- 4.4 km from the place centre
- Coverage
- Good coverage · 19 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.