United States · 1991–2020 normal
Heppner in
December.
Typical December weather in Heppner: 5.9°C by day, -2.7°C at night, 33 mm of rain over 8.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high5.9°C
Typical low-2.7°C
Rain33 mm
Wet days8.2
Comfort score 5 this month (June leads the year at 85). Daylight is calculated as 8 h 44 from latitude 45.35°.
Event window
Frost-level nights in December
The measured night-time normal is -2.7°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5731035
- NOAA station
- USC00353827 · HEPPNER
- Station distance
- 1.4 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.