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 snowfall 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
December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a comfortable 66°F (18.9°C) in November to a moderate 60.1°F (15.6°C). During December, Helena's temperature falls to a steady low-temperature average of 44.6°F (7°C).Humidity
With an average relative humidity of 77%, December is the most humid month.Rainfall
In Helena, in December, it is raining for 9 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 133.4 rainfall days, and 16.57" (421mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall in Helena, Georgia.Daylight
With an average of 10h and 6min of daylight, December has the shortest days of the year in Helena.On the first day of the month, sunrise is at 7:14 am and sunset at 5:26 pm. On the last day of December, sunrise is at 7:32 am and sunset at 5:37 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.3h of sunshine.UV index
The months with the lowest UV index in Helena are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 3 in December suggests the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. 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 are the temperatures in Helena in December?
What is the most humid month in Helena?
What is the average humidity in December in Helena?
How much does it rain in Helena in December?
When it does not snow in Helena?
Does it snow in Helena in December?
What is the month with the shortest days in Helena?
What is the average length of the day in December in Helena?
When is the sunrise / sunset in December in Helena?
What is the month with the least sunshine in Helena?
How many hours of sunshine does Helena have in December?
What is the month with the lowest UV index in Helena?
What is the UV index reading in December in Helena?
Average temperature in December
Helena, GA
- Average high temperature in December: 60.1°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in December: 44.6°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).
Average pressure in December
Helena, GA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in December
Helena, GA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Helena, GA
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January and November (71%).
Average rainfall in December
Helena, GA
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is August (2.05").
The driest month (with the least rainfall) is September (0.83").
Average rainfall days in December
Helena, GA
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is November (6.7 days).
Average snowfall days in December
Helena, GA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Helena, GA
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 5h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Helena, GA
- Average sunshine days in December: 19.8 days
The month with the most sunshine days is November (22.2 days).
The month with the least sunshine days is August (10.8 days).
Average UV index in December
Helena, GA
- Average UV index in December: 3
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 and December (UV index 3).
Average cloud cover in December
Helena, GA
- Average cloud cover in December: 42
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in December
Helena, GA
- 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).
Helena, Georgia, USA
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