December weather forecastLynhurst, IN

December

Weather in December

The first month of the winter, December, is also a wintry month in Lynhurst, Indiana, with an average temperature varying between 38.3°F (3.5°C) and 28.2°F (-2.1°C).

Temperature

With December's arrival, Lynhurst sees a decrease in average high-temperatures, moving from a frosty 49.3°F (9.6°C) in November to a wintry 38.3°F (3.5°C). Lynhurst experiences an average low-temperature reading of 28.2°F (-2.1°C) throughout December.

Humidity

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

Rainfall

In Lynhurst, during December, the rain falls for 8.9 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, there are 146.4 rainfall days, and 21.14" (537mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. The month with the most snowfall in Lynhurst is December, when snow falls for 6.2 days and typically aggregates up to 2.28" (58mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:47 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:30 pm EST.

Sunshine

In December, the average sunshine is 4.2h.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 2 during December translates into these guidelines:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During December, Lynhurst experiences an average high-temperature of 38.3°F (3.5°C) and a low-temperature of 28.2°F (-2.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 86°F (30°C).

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

The average relative humidity in December is 82%.

In Lynhurst, Indiana, in December, during 8.9 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

December is the month with the most snowfall. Snow falls for 6.2 days and accumulates 2.28" (58mm) of snow.

In Lynhurst, in December, snow falls for 6.2 days, with typically accumulated 2.28" (58mm) of snow.

With an average of 9h and 24min of daylight, December has the shortest days of the year.

The average day length in December is 9h and 25min.

On the first day of December, sunrise is at 7:47 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:30 pm EST.

In December, the average sunshine duration is 4.2h.

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

In Lynhurst, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Lynhurst, IN

  • Average high temperature in December: 38.3°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 28.2°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).

Average pressure in December
Lynhurst, IN

  • Average pressure in December: 30.12"Hg

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

Average wind speed in December
Lynhurst, IN

  • Average wind speed in December: 9mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in December
Lynhurst, 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 (73%).

Average rainfall in December
Lynhurst, IN

  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is February (1.22").

Average rainfall days in December
Lynhurst, IN

  • Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (6.8 days).

Average snowfall in December
Lynhurst, IN

  • Average snowfall in December: 2.28"

The month with the highest snowfall is December (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Lynhurst, IN

  • Average snowfall days in December: 6.2 days

The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in December: 9h and 24min

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 12min

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 6min).

Average sunshine days in December
Lynhurst, IN

  • Average sunshine days in December: 17 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in December
Lynhurst, 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
Lynhurst, IN

  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Lynhurst, IN

  • 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).