January weather forecast
Los Alamos, NM

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Weather in January

January in Los Alamos, New Mexico marks the outset of the year with a chilly atmosphere. The city remains cloaked under thick coats of winter frost. An intriguing mix of snowy landscapes and cold breezes characterizes this month. The city sees 5.24" (133mm) of snowfall along with a low temperature of 21.6°F (-5.8°C) stimulating a need for warm comforters and mugs of hot chocolate. The penchant for winter sports, sledding, and mass snowball fights fills the local schedules.

Temperature

Los Alamos notes the coldest temperatures in January, with a high average of 37.9°F (3.3°C) and a low of 21.6°F (-5.8°C).

Humidity

The most humid month in Los Alamos is January, with an average relative humidity of 70%.

Rainfall

In January, in Los Alamos, the rain falls for 5.8 days. Throughout January, 0.79" (20mm) of precipitation is accumulated. Throughout the year, there are 106.2 rainfall days, and 12.05" (306mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Los Alamos, New Mexico, are January through May, October through December. The month with the most snowfall is January, when snow falls for 7.1 days and typically aggregates up to 5.24" (133mm) of snow.

Daylight

In January, the average length of the day is 10h and 3min.
On the first day of the month, sunrise is at 7:15 am and sunset at 5:01 pm. On the last day of January, in Los Alamos, New Mexico, sunrise is at 7:06 am and sunset at 5:30 pm MST.

Sunshine

January, February and December, with an average of 7.1h of sunshine, are months with the least sunshine in Los Alamos.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Los Alamos. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, a regular UV index of 2 translates into these guidelines:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

What is the coldest time of year in Los Alamos?

Los Alamos's January weather reaches an average high of 37.9°F (3.3°C) and an average low of 21.6°F (-5.8°C), making it the coldest month.

Is January cold in Los Alamos?

The high-temperature, in January, in Los Alamos, is 37.9°F (3.3°C), while the low-temperature averages to 21.6°F (-5.8°C).

What is the most humid month in Los Alamos?

January is the most humid month, with an average relative humidity of 70%.

What is the average humidity in January in Los Alamos?

The average relative humidity in January in Los Alamos, New Mexico, is 70%.

How much does it rain in Los Alamos in January?

In Los Alamos, New Mexico, in January, it is raining for 5.8 days, with typically 0.79" (20mm) of accumulated precipitation.

What is the snowiest month in Los Alamos?

January is the month with the most snowfall in Los Alamos, New Mexico. Snow falls for 7.1 days and accumulates 5.24" (133mm) of snow.

How much does it snow in Los Alamos in January?

In Los Alamos, New Mexico, in January, snow falls for 7.1 days, with typically accumulated 5.24" (133mm) of snow.

What is the average length of the day in January in Los Alamos?

In January, the average day length is 10h and 3min.

What time are sunrise and sunset in January in Los Alamos?

On the first day of January in Los Alamos, New Mexico, sunrise is at 7:15 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:30 pm MST.

What is the month with the least sunshine in Los Alamos?

The months with the least sunshine in Los Alamos are January, February and December, with an average of 7.1h of sunshine.

How long on average sun shines in January in Los Alamos?

In January, the average sunshine duration is 7.1h.

When is the lowest UV index in Los Alamos?

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

What is the UV index intensity in January in Los Alamos?

In Los Alamos, New Mexico, the average daily maximum UV index in January is 2. A UV Index 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 January
Los Alamos, NM

Average temperature in January - Los Alamos, NM
  • Average high temperature in January: 37.9°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in January: 21.6°F

The month with the highest average low temperature is July (59.2°F).
The coldest months (with the lowest average low temperature) are January and December (21.6°F).

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Average pressure in January
Los Alamos, NM

Average pressure in January - Los Alamos, NM
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is April (29.89"Hg).

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Average wind speed in January
Los Alamos, NM

Average wind speed in January - Los Alamos, NM
  • Average wind speed in January: 5.8mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in January
Los Alamos, NM

Average humidity in January - Los Alamos, NM
  • Average humidity in January: 70%

The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is June (33%).

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Average rainfall in January
Los Alamos, NM

Average rainfall in January - Los Alamos, NM
  • Average rainfall in January: 0.79"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is April (0.39").

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Average rainfall days in January
Los Alamos, NM

Average rainfall days in January - Los Alamos, NM
  • Average rainfall days in January: 5.8 days

The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is November (5.1 days).

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Average snowfall in January
Los Alamos, NM

Average snowfall in January - Los Alamos, NM
  • Average snowfall in January: 5.24"

The month with the highest snowfall is January (5.24").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Los Alamos, NM

Average snowfall days in January - Los Alamos, NM
  • Average snowfall days in January: 7.1 days

The month with the highest number of snowfall days is December (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Los Alamos, NM

Average daylight in January / Average sunshine in January - Los Alamos, NM
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in January: 7h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 6min).

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Average sunshine days in January
Los Alamos, NM

Average sunshine days in January - Los Alamos, NM
  • Average sunshine days in January: 21.8 days

The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is July (8.9 days).

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Average UV index in January
Los Alamos, NM

Average UV index in January - Los Alamos, NM
  • Average UV index in January: 2

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

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Average cloud cover in January
Los Alamos, NM

Average cloud cover in January - Los Alamos, NM
  • Average cloud cover in January: 22

The month with the most cloud cover is January (Cloud cover 22).
The month with the least cloud cover is June (Cloud cover 10).

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Average visibility in January
Los Alamos, NM

Average visibility in January - Los Alamos, NM
  • 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).

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Los Alamos, New Mexico, USA

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