December weather forecast
Leroy, IN

Share

Weather in December

December, the first month of the winter in Leroy, is also an icy month, with an average temperature fluctuating between 26.4°F (-3.1°C) and 36.1°F (2.3°C).

Temperature

The arrival of December corresponds with a reduction in the average high-temperature, down from November's frosty 47.3°F (8.5°C) to a cold 36.1°F (2.3°C). During the month of December, Leroy experiences a steady low-temperature average of 26.4°F (-3.1°C).

Humidity

The average relative humidity in December is 81%.

Rainfall

In December, in Leroy, the rain falls for 8.7 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. In Leroy, during the entire year, the rain falls for 151.5 days and collects up to 21.18" (538mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall in Leroy. In Leroy, in December, snow falls for 9.5 days, with typically accumulated 1.93" (49mm) of snow. In Leroy, during the entire year, snow falls for 44.8 days and aggregates up to 10.16" (258mm) of snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Leroy.
On the first day of December, sunrise is at 6:56 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:29 pm CST.

Sunshine

In Leroy, the average sunshine in December is 4h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, an average UV index of 1 transforms into the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Leroy in December?

December temperatures in Leroy vary between a high-temperature of 36.1°F (2.3°C) and a low-temperature of 26.4°F (-3.1°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in July is calculated to be 86°F (30°C).

What is the average humidity in December in Leroy?

In December, the average relative humidity in Leroy is 81%.

How much does it rain in Leroy in December?

In December, the rain falls for 8.7 days. Throughout December, 1.1" (28mm) of precipitation is accumulated.

How much does it snow in Leroy in December?

In Leroy, Indiana, during December, snow falls for 9.5 days and regularly aggregates up to 1.93" (49mm) of snow.

What is the month with the shortest days in Leroy?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Leroy?

In December, the average day length in Leroy, Indiana, is 9h and 15min.

When is the sunrise / sunset in December in Leroy?

In December, on the first day of the month, sunrise is at 6:56 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:29 pm CST.

How long on average sun shines in December in Leroy?

The average sunshine duration in December is 4h.

What are the months with the lowest UV index in Leroy?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Leroy, Indiana.

How high is the UV index in December in Leroy?

In December, the average daily maximum UV index is 1. A UV Index estimate 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
Leroy, IN

Average temperature in December - Leroy, IN
  • Average high temperature in December: 36.1°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in December: 26.4°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in December
Leroy, IN

Average pressure in December - Leroy, IN
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Leroy, IN

Average wind speed in December - Leroy, IN
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in December
Leroy, IN

Average humidity in December - Leroy, IN
  • Average humidity in December: 81%

The months with the highest relative humidity are February and July (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Leroy, IN

Average rainfall in December - Leroy, IN
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is February (1.02").

Average rainfall days in December
Leroy, IN

Average rainfall days in December - Leroy, IN
  • Average rainfall days in December: 8.7 days

The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is January (6.7 days).

Average snowfall in December
Leroy, IN

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

The month with the highest snowfall is January (3.03").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Leroy, IN

Average snowfall days in December - Leroy, IN
  • Average snowfall days in December: 9.5 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Leroy, IN
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in December
Leroy, IN

Average sunshine days in December - Leroy, IN
  • Average sunshine days in December: 15 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (10 days).

Average UV index in December
Leroy, IN

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

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

Average cloud cover in December
Leroy, IN

Average cloud cover in December - Leroy, IN
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Leroy, IN

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

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

Leroy, Indiana, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location