Key West, FL Climate in December

Temperature for December

In Key West, FL during December the average high temperature is 77.5°F. The hottest day on record was December 7, 1978 when the temperature hit 86.0°F.

Key West, FL daily average and extreme temperature range for December

Low Temperature

During December the overnight temperature drops to an average of 66.1°F, with the lowest temperature of 44.1°F being recorded on December 27, 1985. In December it has never frozen overnight.

Precipitation for December

In December the average monthly rainfall in Key West, FL is 3.18 inches with rain usually falling on between 7 and 8 days. 2005 was the driest December with only 0.05 inches of rain falling, and 1973 was the wettest December with 22.74 inches of rain. The wettest single day in December was 30 December 1973 when 18.03 inches of rain fell.

In December it usually snows on between 0 and 1 days. Tornados are reported on 0 and 1 days in December. In December there have been some years when thunderstorms have occurred, although there are other years when there hasn't been a thunderstorm in December.