December weather forecast
Zenas, IN

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Weather in December

The first month of the winter, December, is also a wintry month in Zenas, Indiana, with an average temperature fluctuating between 40.6°F (4.8°C) and 29.5°F (-1.4°C).

Temperature

In December, the average high-temperature decreases from a cool 50.9°F (10.5°C) in November to a wintry 40.6°F (4.8°C). Zenas experiences a consistent average temperature of 29.5°F (-1.4°C) throughout the nights in December.

Humidity

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

Rainfall

In Zenas, in December, it is raining for 9.9 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, there are 137.6 rainfall days, and 17.99" (457mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Zenas, in December, snow falls for 6.6 days, with typically accumulated 0.91" (23mm) of snow. In Zenas, during the entire year, snow falls for 29.3 days and aggregates up to 5.35" (136mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:42 am and sunset at 5:19 pm. On the last day of December, sunrise is at 8:00 am and sunset at 5:29 pm EST.

Sunshine

In December, the average sunshine in Zenas is 4.1h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.
Note: A daily high UV index of 1 in December leads to these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

December temperatures vary between a high-temperature of 40.6°F (4.8°C) and a low-temperature of 29.5°F (-1.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is calculated to be 87.8°F (31°C).

What is the most humid month?

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

What is the average humidity in December in Zenas?

The average relative humidity in December is 82%.

How many days does it rain in December?

In December, the rain falls for 9.9 days. Throughout December, 1.26" (32mm) of precipitation is accumulated.

How much does it snow in December?

In Zenas, in December, during 6.6 snowfall days, 0.91" (23mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

What is the average length of the day in December?

In Zenas, the average day length in December is 9h and 28min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:42 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 5:29 pm EST.

How many hours of sunshine does Zenas have in December?

In Zenas, the average sunshine duration in December is 4.1h.

What is the month with the lowest UV index in Zenas?

December is the month with the lowest UV index, with an average maximum UV index of 1.

What is the UV index intensity in December?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
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
Zenas, IN

Average temperature in December - Zenas, IN
  • Average high temperature in December: 40.6°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.9°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 (22.8°F).

Average pressure in December
Zenas, IN

Average pressure in December - Zenas, IN
  • Average pressure in December: 30.12"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
Zenas, IN

Average wind speed in December - Zenas, IN
  • Average wind speed in December: 8.5mph

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).

Average humidity in December
Zenas, IN

Average humidity in December - Zenas, 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 (74%).

Average rainfall in December
Zenas, IN

Average rainfall in December - Zenas, IN
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in December
Zenas, IN

Average rainfall days in December - Zenas, IN
  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is February (7.9 days).

Average snowfall in December
Zenas, IN

Average snowfall in December - Zenas, IN
  • Average snowfall in December: 0.91"

The month with the highest snowfall is March (1.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Zenas, IN

Average snowfall days in December - Zenas, IN
  • Average snowfall days in December: 6.6 days

The month with the highest number of snowfall days is February (7.3 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
Zenas, IN

Average daylight in December / Average sunshine in December - Zenas, IN
  • Average daylight in December: 9h and 3min

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 30min).

  • Average sunshine in December: 4h and 1min

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 0min).

Average sunshine days in December
Zenas, IN

Average sunshine days in December - Zenas, IN
  • Average sunshine days in December: 16.2 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (12.4 days).

Average UV index in December
Zenas, IN

Average UV index in December - Zenas, IN
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Zenas, IN

Average cloud cover in December - Zenas, 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 30).

Average visibility in December
Zenas, IN

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

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

Zenas, Indiana, USA

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