December weather forecast
McCordsville, IN

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Weather in December

The first month of the winter, December, is also an icy month in McCordsville, Indiana, with an average temperature varying between 27.7°F (-2.4°C) and 38.1°F (3.4°C).

Temperature

The shift from November to December involves a decrease in the average high-temperature, dropping from a frosty 48.9°F (9.4°C) to an icy 38.1°F (3.4°C). McCordsville's nighttime temperature during December is consistently averaged at a freezing cold 27.7°F (-2.4°C).

Humidity

January and December, with an average relative humidity of 83%, are the most humid months in McCordsville.

Rainfall

In McCordsville, in December, it is raining for 8 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, there are 141 rainfall days, and 20.98" (533mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In McCordsville, during December, snow falls for 6.4 days and regularly aggregates up to 1.93" (49mm) of snow. In McCordsville, during the entire year, snow falls for 29.1 days and aggregates up to 7.99" (203mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year in McCordsville.
On the first day of December in McCordsville, sunrise is at 7:46 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:28 pm EST.

Sunshine

The average sunshine in December in McCordsville is 4.1h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index in McCordsville. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 1 in December interprets into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in McCordsville?

The high-temperature in McCordsville, Indiana, during December is 38.1°F (3.4°C) and the low-temperature is 27.7°F (-2.4°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the most humid month in McCordsville?

January and December, with an average relative humidity of 83%, are most humid months in McCordsville, Indiana.

What is the average humidity in December in McCordsville?

The average relative humidity in December in McCordsville, Indiana, is 83%.

How many days does it rain in December in McCordsville?

In McCordsville, in December, during 8 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

How much does it snow in McCordsville in December?

In McCordsville, during December, snow falls for 6.4 days and regularly aggregates up to 1.93" (49mm) of snow.

What is the month with the shortest days in McCordsville?

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

How many hours of daylight does McCordsville have in December?

In McCordsville, Indiana, the average day length in December is 9h and 24min.

When is the sunrise / sunset in December in McCordsville?

In December, on the first day of the month, sunrise is at 7:46 am and sunset at 5:19 pm. On the last day of the month, in McCordsville, Indiana, sunrise is at 8:05 am and sunset at 5:28 pm EST.

How many hours of sunshine does McCordsville have in December?

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

When is the lowest UV index in McCordsville?

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

What is the UV index reading in December in McCordsville?

The average daily maximum UV index in December in McCordsville is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe 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
McCordsville, IN

Average temperature in December - McCordsville, IN
  • Average high temperature in December: 38.1°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in December: 27.7°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in December
McCordsville, IN

Average pressure in December - McCordsville, IN
  • Average pressure in December: 30.12"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
McCordsville, IN

Average wind speed in December - McCordsville, IN
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

Average humidity in December
McCordsville, IN

Average humidity in December - McCordsville, IN
  • Average humidity in December: 83%

The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
McCordsville, IN

Average rainfall in December - McCordsville, IN
  • Average rainfall in December: 1.5"

The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is February (1.18").

Average rainfall days in December
McCordsville, IN

Average rainfall days in December - McCordsville, IN
  • Average rainfall days in December: 8 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (6 days).

Average snowfall in December
McCordsville, IN

Average snowfall in December - McCordsville, IN
  • Average snowfall in December: 1.93"

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
McCordsville, IN

Average snowfall days in December - McCordsville, IN
  • Average snowfall days in December: 6.4 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
McCordsville, IN

Average sunshine days in December - McCordsville, IN
  • Average sunshine days in December: 17.5 days

The months with the most sunshine days are October and November (18.7 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in December
McCordsville, IN

Average UV index in December - McCordsville, 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
McCordsville, IN

Average cloud cover in December - McCordsville, IN
  • Average cloud cover in December: 58

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
McCordsville, IN

Average visibility in December - McCordsville, 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).

McCordsville, Indiana, USA

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