January weather forecast
Lafayette, CO

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Weather in January

Starting the year with a fair amount of chill, the weather in Lafayette, Colorado for January focuses more on the cooler side of the spectrum. Few surprises are anticipated, although the odd snowflake could land from time to time, contributing to the average 1.1" (28mm) of snowfall noted for this month. When comparing January to February, the temperature does rise ever so slightly, yet it remains firmly within the winter season zone. It is an ideal time to indulge in winter sports, with skiing and snowboarding often on the agenda for many residents and visitors alike. The unique scene of pristine white landscapes with cold, crisp air marks the commencement of the calendar year.

Temperature

Lafayette's weather in January, with an average high-temperature of a still wintry 40.3°F (4.6°C), subtly shifts from December's 39.4°F (4.1°C). An average nighttime temperature of 21.6°F (-5.8°C) is noted in Lafayette during the month of January.

Humidity

The average relative humidity in January in Lafayette is 64%.

Rainfall

January is the month with the least rainfall. Rain falls for 4.8 days and accumulates 0.16" (4mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Lafayette, during January, snow falls for 5.8 days and regularly aggregates up to 1.1" (28mm) of snow. Throughout the year, there are 36.7 snowfall days, and 13.98" (355mm) of snow is accumulated.

Daylight

The average length of the day in January in Lafayette is 9h and 43min.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:45 pm. On the last day of January, sunrise is at 7:09 am and sunset at 5:17 pm MST.

Sunshine

In January, the average sunshine in Lafayette is 7h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: During January, 2 as the daily maximum UV index converts into the following advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold in Lafayette during January?

In Lafayette, in January, the average high-temperature is 40.3°F (4.6°C), and the average low-temperature is 21.6°F (-5.8°C).

What is the average humidity in January in Lafayette?

In January, the average relative humidity in Lafayette is 64%.

What is the driest month in Lafayette?

January is the month with the least rainfall. Rain falls for 4.8 days and accumulates 0.16" (4mm) of precipitation.

How many days does it rain in January in Lafayette?

In Lafayette, Colorado, in January, during 4.8 rainfall days, 0.16" (4mm) of precipitation is typically accumulated.

How much does it snow in Lafayette in January?

In Lafayette, during January, snow falls for 5.8 days and regularly aggregates up to 1.1" (28mm) of snow.

How many hours of daylight does Lafayette have in January?

In Lafayette, the average day length in January is 9h and 43min.

When are sunrise and sunset in January in Lafayette?

In January, on the first day of the month, sunrise is at 7:22 am and sunset at 4:45 pm. On the last day of the month, in Lafayette, sunrise is at 7:09 am and sunset at 5:17 pm MST.

How long on average sun shines in January in Lafayette?

The average sunshine duration in January in Lafayette, Colorado, is 7h.

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

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Lafayette.

How high is the UV index in January in Lafayette?

In January, the average daily maximum UV index in Lafayette, Colorado, is 2. A UV Index value 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 January
Lafayette, CO

Average temperature in January - Lafayette, CO
  • Average high temperature in January: 40.3°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (39.4°F).

  • Average low temperature in January: 21.6°F

The month with the highest average low temperature is July (59°F).
The coldest months (with the lowest average low temperature) are February and December (20.7°F).

Average pressure in January
Lafayette, CO

Average pressure in January - Lafayette, CO
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).

Average wind speed in January
Lafayette, CO

Average wind speed in January - Lafayette, CO
  • Average wind speed in January: 6.3mph

The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is September (5.6mph).

Average humidity in January
Lafayette, CO

Average humidity in January - Lafayette, CO
  • Average humidity in January: 64%

The month with the highest relative humidity is February (67%).
The month with the lowest relative humidity is August (41%).

Average rainfall in January
Lafayette, CO

Average rainfall in January - Lafayette, CO
  • Average rainfall in January: 0.16"

The wettest months (with the highest rainfall) are May and July (0.87").
The driest month (with the least rainfall) is January (0.16").

Average rainfall days in January
Lafayette, CO

Average rainfall days in January - Lafayette, CO
  • Average rainfall days in January: 4.8 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is November (3.5 days).

Average snowfall in January
Lafayette, CO

Average snowfall in January - Lafayette, CO
  • Average snowfall in January: 1.1"

The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Lafayette, CO

Average snowfall days in January - Lafayette, CO
  • Average snowfall days in January: 5.8 days

The month with the highest number of snowfall days is February (8.4 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, CO

Average daylight in January / Average sunshine in January - Lafayette, CO
  • 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 24min).

  • Average sunshine in January: 7h and 0min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).

Average sunshine days in January
Lafayette, CO

Average sunshine days in January - Lafayette, CO
  • Average sunshine days in January: 23.6 days

The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is July (10 days).

Average UV index in January
Lafayette, CO

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

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

Average cloud cover in January
Lafayette, CO

Average cloud cover in January - Lafayette, CO
  • Average cloud cover in January: 21

The months with the most cloud cover are April and May (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 15).

Average visibility in January
Lafayette, CO

Average visibility in January - Lafayette, CO
  • Average visibility in January: 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).

Lafayette, Colorado, USA

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