December weather forecast
West Lafayette, OH

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Weather in December

The first month of the winter, December, is still a cold month in West Lafayette, Ohio, with temperature in the range of an average high of 39.2°F (4°C) and an average low of 28.2°F (-2.1°C).

Temperature

December brings a drop in West Lafayette's average high-temperature, falling from a chilly 49.1°F (9.5°C) in November to a cold 39.2°F (4°C). Throughout December, the temperature tends to fall to a consistent average low of 28.2°F (-2.1°C).

Humidity

The average relative humidity in December in West Lafayette, Ohio, is 83%.

Rainfall

In West Lafayette, in December, it is raining for 9 days, with typically 1.38" (35mm) of accumulated precipitation. In West Lafayette, during the entire year, the rain falls for 137.2 days and collects up to 17.6" (447mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In West Lafayette, in December, snow falls for 5.7 days, with typically accumulated 1.06" (27mm) of snow. Throughout the year, there are 33.4 snowfall days, and 7.56" (192mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year in West Lafayette.
On the first day of the month, sunrise is at 7:31 am and sunset at 5:01 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:11 pm EST.

Sunshine

In West Lafayette, Ohio, the average sunshine in December is 3.8h.

UV index

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold does it get in West Lafayette in December?

December temperatures vary between a high-temperature of 39.2°F (4°C) and a low-temperature of 28.2°F (-2.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in August is computed to be 87.8°F (31°C).

What is the average humidity in December in West Lafayette?

In December, the average relative humidity in West Lafayette is 83%.

How many days does it rain in December in West Lafayette?

In West Lafayette, Ohio, in December, it is raining for 9 days, with typically 1.38" (35mm) of accumulated precipitation.

How much does it snow in West Lafayette in December?

In West Lafayette, Ohio, during December, snow falls for 5.7 days and regularly aggregates up to 1.06" (27mm) of snow.

What is the month with the shortest days in West Lafayette?

The month with the shortest days in West Lafayette is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December in West Lafayette?

In West Lafayette, Ohio, the average day length in December is 9h and 22min.

What time are sunrise and sunset in December in West Lafayette?

On the first day of December in West Lafayette, sunrise is at 7:31 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:11 pm EST.

How many hours of sunshine does West Lafayette have in December?

The average sunshine duration in December is 3.8h.

What is the month with the lowest UV index in West Lafayette?

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

How high is the UV index in December in West Lafayette?

In December, the average daily maximum UV index is 2. A UV Index value 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
West Lafayette, OH

Average temperature in December - West Lafayette, OH
  • Average high temperature in December: 39.2°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (32.7°F).

  • Average low temperature in December: 28.2°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

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Average pressure in December
West Lafayette, OH

Average pressure in December - West Lafayette, OH
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in December
West Lafayette, OH

Average wind speed in December - West Lafayette, OH
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in December
West Lafayette, OH

Average humidity in December - West Lafayette, OH
  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April and November (77%).

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Average rainfall in December
West Lafayette, OH

Average rainfall in December - West Lafayette, OH
  • Average rainfall in December: 1.38"

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

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Average rainfall days in December
West Lafayette, OH

Average rainfall days in December - West Lafayette, OH
  • Average rainfall days in December: 9 days

The month with the highest number of rainy days is May (16.4 days).
The months with the least rainy days are February and November (7.7 days).

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Average snowfall in December
West Lafayette, OH

Average snowfall in December - West Lafayette, OH
  • Average snowfall in December: 1.06"

The month with the highest snowfall is February (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
West Lafayette, OH

Average snowfall days in December - West Lafayette, OH
  • Average snowfall days in December: 5.7 days

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
West Lafayette, OH

Average daylight in December / Average sunshine in December - West Lafayette, OH
  • 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: 3h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

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Average sunshine days in December
West Lafayette, OH

Average sunshine days in December - West Lafayette, OH
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (11 days).

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Average UV index in December
West Lafayette, OH

Average UV index in December - West Lafayette, OH
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

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Average cloud cover in December
West Lafayette, OH

Average cloud cover in December - West Lafayette, OH
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in December
West Lafayette, OH

Average visibility in December - West Lafayette, OH
  • Average visibility in December: 5mi

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

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West Lafayette, Ohio, USA

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