January weather forecast and climate
Portland, AR

Weather in January

January, the same as December, is another fresh winter month in Portland, Arkansas, with average temperature varying between 51.6°F (10.9°C) and 38.1°F (3.4°C).

Temperature

The coldest month is January, with an average high-temperature of 51.6°F (10.9°C) and an average low-temperature of 38.1°F (3.4°C).

Humidity

The average relative humidity in Portland is 76%.

Rainfall

In Portland, in January, it is raining for 12.1 days, with typically 3.39" (86mm) of accumulated precipitation. In Portland, during the entire year, the rain falls for 158.8 days and collects up to 40.67" (1033mm) of precipitation.

Snowfall

January through March and November are months with snowfall in Portland. January is the first month it typically snows. Throughout January, in the average 0.8 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, in Portland, Arkansas, there are 2.7 snowfall days, and 0.75" (19mm) of snow is accumulated.

Daylight

The average length of the day in January is 10.3h.

Sunshine

The average sunshine in January is 5.2h.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Portland. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: In January, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Portland?

With an average high-temperature of 51.6°F (10.9°C) and an average low-temperature of 38.1°F (3.4°C), January is the coldest month.

What is the temperature in January in Portland?

In January, in Portland, Arkansas, the average high-temperature is 51.6°F (10.9°C), and the average low-temperature is 38.1°F (3.4°C).

What is the average humidity in January in Portland?

In Portland, Arkansas, the average relative humidity in January is 76%.

How much does it rain in Portland in January?

In January, in Portland, Arkansas, the rain falls for 12.1 days. Throughout January, 3.39" (86mm) of precipitation is accumulated.

When does it start snowing in Portland?

January is the first month it typically snows in Portland. Throughout January, in the average 0.8 snowfall days, it receives 0.16" (4mm) of snow.

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

The average length of the day in January in Portland is 10.3h.

How long on average sun shines in January in Portland?

The average sunshine in January in Portland, Arkansas, is 5.2h.

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

Months with the lowest UV index in Portland, Arkansas, are January and December, with an average maximum UV index of 3.

What is the UV index reading in January in Portland?

In January, the average daily maximum UV index in Portland, Arkansas, is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.

Average temperature in January
Portland, AR

Average temperature in January - Portland, AR
  • Average high temperature in January: 51.6°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (51.6°F).

  • Average low temperature in January: 38.1°F

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).

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Average pressure in January
Portland, AR

Average pressure in January - Portland, AR
  • Average pressure in January: 30.17"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.95").

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Average wind speed in January
Portland, AR

Average wind speed in January - Portland, AR
  • Average wind speed in January: 9.3mph

The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in January
Portland, AR

Average humidity in January - Portland, AR
  • Average humidity in January: 76%

Months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in January
Portland, AR

Average rainfall in January - Portland, AR
  • Average rainfall in January: 3.39"

The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is November (2.44").

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Average rainfall days in January
Portland, AR

Average rainfall days in January - Portland, AR
  • Average rainfall days in January: 12.1 days

The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (9.3 days).

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Average snowfall in January
Portland, AR

Average snowfall in January - Portland, AR
  • Average snowfall in January: 0.16"

The month with the highest snowfall is February (0.43").
Months with the least snowfall are April, May, June, July, August, September, October and December (0").

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Average snowfall days in January
Portland, AR

Average snowfall days in January - Portland, AR
  • Average snowfall days in January: 0.8 days

The month with the highest number of snowfall days is February (1.2 days).
Months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).

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Average daylight in January /
Average sunshine in January
Portland, AR

Average daylight in January / Average sunshine in January - Portland, AR
  • Average daylight in January: 10.3h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in January: 5.2h

The month with the most sunshine is June (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.8h).

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Average sunshine days in January
Portland, AR

Average sunshine days in January - Portland, AR
  • Average sunshine days in January: 17.5 days

The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (12 days).

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Average UV index in January
Portland, AR

Average UV index in January - Portland, AR
  • Average UV index in January: 3

Months with the highest UV index are June, July and August (UV index 7).
Months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in January
Portland, AR

Average cloud cover in January - Portland, AR
  • Average cloud cover in January: 42

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).

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Average visibility in January
Portland, AR

Average visibility in January - Portland, AR
  • Average visibility in January: 6mi

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

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