January weather forecast
Lafayette, IN

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Weather in January

January weather in Lafayette, Indiana, starts the year with a chill, characterized by snowfall and cold temperatures. It is indeed winter's peak, with the lower temperatures diving to around 19.8°F (-6.8°C). The frosty air is felt alongside an increased cloud cover of 60% and lessened daylight of about 9.7 hours. As a transition from the festive December, January brings about a relative drop in rainfall and snowfall. This season typically inspires residents to bundle up and enjoy winter sports like skiing, or to cozy up indoors.

Temperature

Temperature readings reach their annual highs in January, averaging 31.8°F (-0.1°C) and a minimum average of 19.8°F (-6.8°C).

Humidity

In Lafayette, the average relative humidity in January is 82%.

Rainfall

In Lafayette, during January, the rain falls for 7 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, there are 153.1 rainfall days, and 22.13" (562mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. The months with the most snowfall are January and February, with an average 2.44" (62mm) of accumulated snow.

Daylight

The average length of the day in January is 9h and 41min.
On the first day of the month, sunrise is at 8:10 am and sunset at 5:31 pm. On the last day of January, sunrise is at 7:57 am and sunset at 6:03 pm EST.

Sunshine

January has the least sunshine of the year, with an average of 3.9h of sunshine.

UV index

In January, the average daily maximum UV index in Lafayette is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 in January transforms into the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Frequently asked questions

What is the coldest month?

January, on average, is the coldest month in Lafayette, registering a high temperature of 31.8°F (-0.1°C) and a low of 19.8°F (-6.8°C).

How cold is January?

Lafayette in January has an average high-temperature of 31.8°F (-0.1°C) and an average low-temperature of 19.8°F (-6.8°C).

What is the average humidity in January?

In January, the average relative humidity is 82%.

How many days does it rain in January?

In Lafayette, Indiana, in January, during 7 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When does it snow the most?

The months with the most snowfall are January and February, with an average 2.44" (62mm) of accumulated snow.

How many days does it snow in January?

In Lafayette, in January, snow falls for 11.1 days, with typically accumulated 2.44" (62mm) of snow.

What is the average length of the day in January?

The average day length in January in Lafayette is 9h and 41min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 8:10 am and sunset at 5:31 pm. On the last day of the month, sunrise is at 7:57 am and sunset at 6:03 pm EST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.9h of sunshine.

How many hours of sunshine does Lafayette have in January?

The average sunshine duration in January is 3.9h.

What is the UV index reading in January?

In Lafayette, Indiana, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's 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 January
Lafayette, IN

Average temperature in January - Lafayette, IN
  • Average high temperature in January: 31.8°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in January: 19.8°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in January
Lafayette, IN

Average pressure in January - Lafayette, IN
  • Average pressure in January: 30.13"Hg

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

Average wind speed in January
Lafayette, IN

Average wind speed in January - Lafayette, IN
  • Average wind speed in January: 10.3mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in January
Lafayette, IN

Average humidity in January - Lafayette, IN
  • Average humidity in January: 82%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).

Average rainfall in January
Lafayette, IN

Average rainfall in January - Lafayette, IN
  • Average rainfall in January: 1.34"

The wettest months (with the highest rainfall) are April and May (2.8").
The driest month (with the least rainfall) is September (1.1").

Average rainfall days in January
Lafayette, IN

Average rainfall days in January - Lafayette, IN
  • Average rainfall days in January: 7 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (6.5 days).

Average snowfall in January
Lafayette, IN

Average snowfall in January - Lafayette, IN
  • Average snowfall in January: 2.44"

The months with the highest snowfall are January and February (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Lafayette, IN

Average snowfall days in January - Lafayette, IN
  • Average snowfall days in January: 11.1 days

The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Lafayette, IN

Average daylight in January / Average sunshine in January - Lafayette, IN
  • Average daylight in January: 9h and 4min

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 18min).

  • Average sunshine in January: 3h and 5min

The months with the most sunshine are June and July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in January
Lafayette, IN

Average sunshine days in January - Lafayette, IN
  • Average sunshine days in January: 13.9 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (9.8 days).

Average UV index in January
Lafayette, IN

Average UV index in January - Lafayette, IN
  • Average UV index in January: 2

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 January
Lafayette, IN

Average cloud cover in January - Lafayette, IN
  • Average cloud cover in January: 60

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are June and August (Cloud cover 33).

Average visibility in January
Lafayette, IN

Average visibility in January - Lafayette, IN
  • Average visibility in January: 6mi

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

Lafayette, Indiana, USA

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