United States · 1991–2020 normal
Key West in
December.
Typical December weather in Key West: 25.1°C by day, 20°C at night, 55 mm of rain over 4.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high25.1°C
Typical low20°C
Rain55 mm
Wet days4.2
Comfort score 84 this month (January leads the year at 91). Daylight is calculated as 10 h 37 from latitude 24.56°. Open-water sea temperature is 24.0°C (12 km from the place centre).
Event window
Warm sea in December
The nearest open-water NOAA OISST 1991–2020 cell averages 24.0°C in December. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4160812
- NOAA station
- USW00012836 · KEY W INTL AP
- Station distance
- 2.7 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.