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 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
Helena experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a comfortable 62.4°F (16.9°C) in November to a fresh 55°F (12.8°C). An average nighttime temperature of 40.5°F (4.7°C) is noted during the month of December.Humidity
With an average relative humidity of 80%, December is the most humid month in Helena, Alabama.Rainfall
In Helena, in December, during 12.7 rainfall days, 3.98" (101mm) of precipitation is typically accumulated. In Helena, during the entire year, the rain falls for 174.2 days and collects up to 40.08" (1018mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Helena, Alabama, during December, snow falls for 0.6 days and regularly aggregates up to 0.55" (14mm) of snow. In Helena, during the entire year, snow falls for 3.3 days and aggregates up to 1.81" (46mm) of snow.Daylight
The month with the shortest days in Helena is December, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 6:33 am and sunset at 4:39 pm. On the last day of December, in Helena, sunrise is at 6:50 am and sunset at 4:50 pm CST.
Sunshine
The months with the least sunshine are February and December, with an average of 4.9h of sunshine.UV index
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 3 during December translates into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for 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?
How many days does it snow in December in Helena?
What is the month with the shortest days in Helena?
What is the average length of the day in December in Helena?
What time are sunrise and sunset in December in Helena?
What is the month with the least sunshine in Helena?
How long on average sun shines in December in Helena?
What is the month with the lowest UV index in Helena?
How high is the UV index in December in Helena?
Average temperature in December
Helena, AL
- Average high temperature in December: 55°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (51.1°F).
- Average low temperature in December: 40.5°F
The month with the highest average low temperature is August (71.4°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in December
Helena, AL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in December
Helena, AL
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in December
Helena, AL
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Helena, AL
- Average rainfall in December: 3.98"
The wettest month (with the highest rainfall) is April (4.09").
The driest months (with the least rainfall) are September and October (2.36").
Average rainfall days in December
Helena, AL
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is July (21.8 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in December
Helena, AL
- Average snowfall in December: 0.55"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Helena, AL
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is January (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Helena, AL
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in December
Helena, AL
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in December
Helena, AL
- Average UV index in December: 3
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Helena, AL
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in December
Helena, AL
- 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, Alabama, USA
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