December weather forecastBay Harbor, FL
December
Weather in December
December, the first month of the winter in Bay Harbor, is still a refreshing month, with an average temperature ranging between min 53.2°F (11.8°C) and max 63.9°F (17.7°C).Temperature
December's onset sees an average high-temperature of a refreshing 63.9°F (17.7°C), exhibiting a slight fluctuation from the previous month. The temperature dips to an average of 53.2°F (11.8°C) during December nights.Humidity
With an average relative humidity of 77%, December is the most humid month.Rainfall
In Bay Harbor, in December, during 11.7 rainfall days, 3.5" (89mm) of precipitation is typically accumulated. In Bay Harbor, during the entire year, the rain falls for 164.8 days and collects up to 36.77" (934mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 10h and 12min of daylight.On the first day of December, sunrise is at 6:21 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 4:53 pm CST.
Sunshine
February and December, with an average of 5.7h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 4 during December translates into the following guidance:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bay Harbor, FL
- Average high temperature in December: 63.9°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (60.3°F).
- Average low temperature in December: 53.2°F
The months with the highest average low temperature are July and August (79.9°F).
The coldest month (with the lowest average low temperature) is January (48.7°F).
Average pressure in December
Bay Harbor, FL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in December
Bay Harbor, FL
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest months (with the lowest average wind speed) are August and September (7.5mph).
Average humidity in December
Bay Harbor, FL
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Bay Harbor, FL
- Average rainfall in December: 3.5"
The wettest month (with the highest rainfall) is August (5.47").
The driest month (with the least rainfall) is November (1.61").
Average rainfall days in December
Bay Harbor, FL
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is August (24 days).
The month with the least rainy days is November (8.5 days).
Average daylight in December /
Average sunshine in December
Bay Harbor, FL
- Average daylight in December: 10h and 12min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 42min
The months with the most sunshine are May and June (Average sunshine: 11h and 6min).
The months with the least sunshine are February and December (Average sunshine: 5h and 42min).
Average sunshine days in December
Bay Harbor, FL
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is August (5.6 days).
Average UV index in December
Bay Harbor, FL
- Average UV index in December: 4
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover in December
Bay Harbor, FL
- Average cloud cover in December: 38
The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 21).
Average visibility in December
Bay Harbor, FL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
