December weather forecast
Bethany, IN

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Weather in December

The first month of the winter, December, is still a cold month in Bethany, Indiana, with an average temperature fluctuating between 29.5°F (-1.4°C) and 40.8°F (4.9°C).

Temperature

As December arrives, Bethany's weather displays a decrease in high-temperatures, transitioning from November's cool 51.3°F (10.7°C) to an icy 40.8°F (4.9°C). Bethany's temperature lowers to a mean of 29.5°F (-1.4°C) during the nights in December.

Humidity

December is the most humid month, with an average relative humidity of 82%.

Rainfall

In Bethany, Indiana, in December, it is raining for 9.6 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, there are 151.7 rainfall days, and 27.91" (709mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Bethany, in December, snow falls for 5.6 days, with typically accumulated 1.73" (44mm) of snow. Throughout the year, there are 25.4 snowfall days, and 8.78" (223mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:47 am and sunset at 5:22 pm. On the last day of December, sunrise is at 8:05 am and sunset at 5:31 pm EST.

Sunshine

In December, the average sunshine is 4.3h.

UV index

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Opt for tightly woven and loose clothing to enhance protection from the Sun. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold?

The high-temperature during December is 40.8°F (4.9°C) and the low-temperature is 29.5°F (-1.4°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 91.4°F (33°C).

What is the most humid month?

December is the most humid month, with an average relative humidity of 82%.

What is the average humidity in December in Bethany?

In Bethany, the average relative humidity in December is 82%.

How many days does it rain in December in Bethany?

In Bethany, during December, the rain falls for 9.6 days and regularly aggregates up to 2.17" (55mm) of precipitation.

How many days does it snow in December?

In December, it is snowing for 5.6 days. Throughout December, 1.73" (44mm) of snow is accumulated.

What is the month with the shortest days in Bethany?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

In Bethany, the average day length in December is 9h and 26min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:47 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:31 pm EST.

How many hours of sunshine does Bethany have in December?

The average sunshine duration in December is 4.3h.

What is the month with the lowest UV index?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December?

In Bethany, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Bethany, IN

Average temperature in December - Bethany, IN
  • Average high temperature in December: 40.8°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in December: 29.5°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in December
Bethany, IN

Average pressure in December - Bethany, IN
  • Average pressure in December: 30.13"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Bethany, IN

Average wind speed in December - Bethany, IN
  • Average wind speed in December: 7.8mph

The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in December
Bethany, IN

Average humidity in December - Bethany, IN
  • Average humidity in December: 82%

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (75%).

Average rainfall in December
Bethany, IN

Average rainfall in December - Bethany, IN
  • Average rainfall in December: 2.17"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in December
Bethany, IN

Average rainfall days in December - Bethany, IN
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is May (19.6 days).
The months with the least rainy days are January and February (8 days).

Average snowfall in December
Bethany, IN

Average snowfall in December - Bethany, IN
  • Average snowfall in December: 1.73"

The month with the highest snowfall is March (2.2").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Bethany, IN

Average snowfall days in December - Bethany, IN
  • Average snowfall days in December: 5.6 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Bethany, IN

Average daylight in December / Average sunshine in December - Bethany, IN
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in December
Bethany, IN

Average sunshine days in December - Bethany, IN
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (8.6 days).

Average UV index in December
Bethany, IN

Average UV index in December - Bethany, IN
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in December
Bethany, IN

Average cloud cover in December - Bethany, IN
  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Bethany, IN

Average visibility in December - Bethany, IN
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).

Bethany, Indiana, USA

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