January weather forecast
Portales, NM

Silhouette windmill images on a small hill in Portales in NM, below the colorful yellow, orange, and grey sunset sky
Silhouette windmill images on a small hill in Portales in NM, below the colorful yellow, orange, and grey sunset sky

Weather in January

January, like December, in Portales, New Mexico, is another fresh winter month, with an average temperature fluctuating between 50.9°F (10.5°C) and 31.3°F (-0.4°C).

Temperature

In Portales, the average high-temperature in January is almost the same as in December - a still fresh 50.9°F (10.5°C). The average low-temperature, in January, is 31.3°F (-0.4°C).

Humidity

In January, the average relative humidity is 51%.

Rainfall

In Portales, during 3 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. In Portales, during the entire year, the rain falls for 86.6 days and collects up to 11.77" (299mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. The months with the most snowfall are January and February, with an average 1.34" (34mm) of accumulated snow.

Daylight

In January, the average length of the day in Portales is 10h and 11min.
On the first day of January in Portales, sunrise is at 6:59 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 5:22 pm MST.

Sunshine

January, February and December, with an average of 7h of sunshine, are months with the least sunshine.

UV index

In Portales, the average daily maximum UV index in January is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In January, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in January in Portales?

The average relative humidity in January is 51%.

How much does it rain in Portales in January?

In January, in Portales, New Mexico, the rain falls for 3 days. Throughout January, 0.31" (8mm) of precipitation is accumulated.

What is the snowiest month in Portales?

The months with the most snowfall in Portales are January and February, with an average 1.34" (34mm) of accumulated snow.

How many days does it snow in January in Portales?

In Portales, New Mexico, during January, snow falls for 2.8 days and regularly aggregates up to 1.34" (34mm) of snow.

What is the average length of the day in January in Portales?

The average day length in January is 10h and 11min.

When are sunrise and sunset in January in Portales?

In January, on the first day of the month, sunrise is at 6:59 am and sunset at 4:54 pm. On the last day of the month, in Portales, sunrise is at 6:51 am and sunset at 5:22 pm MST.

What is the month with the least sunshine in Portales?

January, February and December, with an average of 7h of sunshine, are months with the least sunshine in Portales.

How long on average sun shines in January in Portales?

In Portales, New Mexico, the average sunshine duration in January is 7h.

How high is the UV index in January in Portales?

In Portales, New Mexico, the average daily maximum UV index in January is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Portales, NM

Average temperature in January - Portales, NM
  • Average high temperature in January: 50.9°F

The warmest month (with the highest average high temperature) is June (90.7°F).
The month with the lowest average high temperature is December (50°F).

  • Average low temperature in January: 31.3°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is December (31.1°F).

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Average pressure in January
Portales, NM

Average pressure in January - Portales, NM
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in January
Portales, NM

Average wind speed in January - Portales, NM
  • Average wind speed in January: 11.2mph

The windiest month (with the highest average wind speed) is April (13.3mph).
The calmest month (with the lowest average wind speed) is August (9.9mph).

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Average humidity in January
Portales, NM

Average humidity in January - Portales, NM
  • Average humidity in January: 51%

The month with the highest relative humidity is December (54%).
The month with the lowest relative humidity is April (34%).

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Average rainfall in January
Portales, NM

Average rainfall in January - Portales, NM
  • Average rainfall in January: 0.31"

The wettest month (with the highest rainfall) is October (1.81").
The driest month (with the least rainfall) is November (0.28").

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Average rainfall days in January
Portales, NM

Average rainfall days in January - Portales, NM
  • Average rainfall days in January: 3 days

The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is November (2.6 days).

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Average snowfall in January
Portales, NM

Average snowfall in January - Portales, NM
  • Average snowfall in January: 1.34"

The months with the highest snowfall are January and February (1.34").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Portales, NM

Average snowfall days in January - Portales, NM
  • Average snowfall days in January: 2.8 days

The month with the highest number of snowfall days is December (3.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Portales, NM

Average daylight in January / Average sunshine in January - Portales, NM
  • Average daylight in January: 10h and 11min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 55min).

  • Average sunshine in January: 7h and 0min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 0min).

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Average sunshine days in January
Portales, NM

Average sunshine days in January - Portales, NM
  • Average sunshine days in January: 26.4 days

The month with the most sunshine days is January (26.4 days).
The month with the least sunshine days is August (14 days).

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Average UV index in January
Portales, NM

Average UV index in January - Portales, NM
  • Average UV index in January: 3

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in January
Portales, NM

Average cloud cover in January - Portales, NM
  • Average cloud cover in January: 17

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 13).

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Average visibility in January
Portales, NM

Average visibility in January - Portales, 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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