Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
With the onset of December, the average high-temperature registers at a still moderately hot 76.5°F (24.7°C), subtly different from November's 79.5°F (26.4°C). Throughout December, Harker's nights cool down to an average of 60.1°F (15.6°C).Humidity
The average relative humidity in December is 77%.Rainfall
In December, the rain falls for 9.6 days. Throughout December, 0.87" (22mm) of precipitation is accumulated. Throughout the year, there are 192.1 rainfall days, and 30.24" (768mm) of precipitation is accumulated.Daylight
With an average of 10h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:56 am and sunset at 5:32 pm. On the last day of December, sunrise is at 7:13 am and sunset at 5:44 pm EST.
Sunshine
The months with the least sunshine are November and December, with an average of 6.4h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 5 in December leads to these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Harker in December?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Harker have in December?
When is the sunrise / sunset in December in Harker?
What are the months with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Harker, FL
- Average high temperature in December: 76.5°F
The warmest month (with the highest average high temperature) is August (90.7°F).
The month with the lowest average high temperature is January (72.7°F).
- Average low temperature in December: 60.1°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (55.6°F).
Average pressure in December
Harker, FL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in December
Harker, FL
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in December
Harker, FL
- Average humidity in December: 77%
The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is March (70%).
Average rainfall in December
Harker, FL
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is August (5.75").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in December
Harker, FL
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (24.7 days).
The month with the least rainy days is January (8.8 days).
Average daylight in December /
Average sunshine in December
Harker, FL
- Average daylight in December: 10h and 3min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are November and December (Average sunshine: 6h and 24min).
Average sunshine days in December
Harker, FL
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is July (5.1 days).
Average UV index in December
Harker, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 5).
Average cloud cover in December
Harker, FL
- Average cloud cover in December: 33
The months with the most cloud cover are January, September and December (Cloud cover 33).
The months with the least cloud cover are March, April and May (Cloud cover 28).
Average visibility in December
Harker, 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).
Harker, Florida, USA
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