December weather forecast
Lanam, IN

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Weather in December

December, the first month of the winter in Lanam, is still a cold month, with temperature in the range of an average low of 29.5°F (-1.4°C) and an average high of 40.8°F (4.9°C).

Temperature

During the transition into December, Lanam observes a decrease in the average high-temperature, falling from a fresh 51.3°F (10.7°C) in November to a cold 40.8°F (4.9°C). December nights observe an average temperature dip to a subzero cold 29.5°F (-1.4°C).

Humidity

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

Rainfall

In December, in Lanam, the rain falls for 9.6 days. Throughout December, 2.17" (55mm) of precipitation is accumulated. Throughout the year, in Lanam, there are 151.7 rainfall days, and 27.91" (709mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Lanam, in December, during 5.6 snowfall days, 1.73" (44mm) of snow is typically accumulated. In Lanam, Indiana, during the entire year, snow falls for 25.4 days and aggregates up to 8.78" (223mm) of snow.

Daylight

The month with the shortest days in Lanam is December, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:46 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:32 pm EST.

Sunshine

The average sunshine in December is 4.3h.

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 minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. When the Sun is at its strongest around midday, find shade and limit exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Lanam in December?

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. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in August is evaluated at 91.4°F (33°C).

What is the most humid month in Lanam?

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

What is the average humidity in December in Lanam?

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

How many days does it rain in December in Lanam?

In December, in Lanam, the rain falls for 9.6 days. Throughout December, 2.17" (55mm) of precipitation is accumulated.

How many days does it snow in December in Lanam?

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 Lanam?

With an average of 9h and 30min of daylight, December has the shortest days of the year in Lanam, Indiana.

How many hours of daylight does Lanam have in December?

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

What time are sunrise and sunset in December in Lanam?

On the first day of December in Lanam, sunrise is at 7:46 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:32 pm EST.

How many hours of sunshine does Lanam have in December?

The average sunshine duration in December is 4.3h.

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

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

What is the UV index reading in December in Lanam?

The average daily maximum UV index in December in Lanam, Indiana, is 2. 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
Lanam, IN

Average temperature in December - Lanam, 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
Lanam, IN

Average pressure in December - Lanam, 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
Lanam, IN

Average wind speed in December - Lanam, 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
Lanam, IN

Average humidity in December - Lanam, 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
Lanam, IN

Average rainfall in December - Lanam, 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
Lanam, IN

Average rainfall days in December - Lanam, 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
Lanam, IN

Average snowfall in December - Lanam, 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
Lanam, IN

Average snowfall days in December - Lanam, 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
Lanam, IN

Average daylight in December / Average sunshine in December - Lanam, 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 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
Lanam, IN

Average sunshine days in December - Lanam, 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
Lanam, IN

Average UV index in December - Lanam, 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
Lanam, IN

Average cloud cover in December - Lanam, 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
Lanam, IN

Average visibility in December - Lanam, 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).

Lanam, Indiana, USA

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