United States · 1991–2020 normal
Delta in
December.
Typical December weather in Delta: 4.5°C by day, -9.7°C at night, 14 mm of rain over 3.3 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high4.5°C
Typical low-9.7°C
Rain14 mm
Wet days3.3
Comfort score 5 this month (May leads the year at 78). Daylight is calculated as 9 h 24 from latitude 39.35°.
Event window
Frost-level nights in December
The measured night-time normal is -9.7°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5538080
- NOAA station
- USW00023162 · DELTA
- Station distance
- 1.8 km from the place centre
- Coverage
- Strong coverage · 28 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.