January weather forecast
Poston, AZ

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Weather in January

January, like December, in Poston, Arizona, is another comfortable winter month, with temperature in the range of an average high of 63.1°F (17.3°C) and an average low of 47.3°F (8.5°C).

Temperature

January observes an average high-temperature of a still enjoyable 63.1°F (17.3°C), marking an insignificant difference from December's 61.2°F (16.2°C). Poston records an average nighttime low-temperature of 47.3°F (8.5°C) throughout January.

Humidity

January and December, with an average relative humidity of 39%, are the most humid months.

Rainfall

In Poston, during January, the rain falls for 2.3 days and regularly aggregates up to 0.31" (8mm) of precipitation. In Poston, during the entire year, the rain falls for 39.4 days and collects up to 3.9" (99mm) of precipitation.

Daylight

The average length of the day in January is 10h and 12min.
On the first day of January, sunrise is at 7:42 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 6:06 pm MST.

Sunshine

In Poston, the average sunshine in January is 7.6h.

UV index

In January, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the maximum UV index of 4 suggests these recommendations:
Act with care - The need to guard against sun damage is communicated. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in January?

The high-temperature, in January, in Poston, records 63.1°F (17.3°C), while the low-temperature is 47.3°F (8.5°C).

What are the most humid months?

The months with the highest humidity are January and December, with an average relative humidity of 39%.

What is the average humidity in January?

In January, the average relative humidity is 39%.

How many days does it rain in January?

In Poston, Arizona, during January, the rain falls for 2.3 days and regularly aggregates up to 0.31" (8mm) of precipitation.

What is the average length of the day in January?

The average day length in January is 10h and 12min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:42 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 6:06 pm MST.

How long on average sun shines in January?

In January, the average sunshine duration is 7.6h.

What is the UV index reading in January?

The average daily maximum UV index in January is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Poston, AZ

Average temperature in January - Poston, AZ
  • Average high temperature in January: 63.1°F

The warmest month (with the highest average high temperature) is July (104.2°F).
The month with the lowest average high temperature is December (61.2°F).

  • Average low temperature in January: 47.3°F

The month with the highest average low temperature is August (85.6°F).
The coldest month (with the lowest average low temperature) is December (47.1°F).

Average pressure in January
Poston, AZ

Average pressure in January - Poston, AZ
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.74"Hg).

Average wind speed in January
Poston, AZ

Average wind speed in January - Poston, AZ
  • Average wind speed in January: 6mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is November (5.8mph).

Average humidity in January
Poston, AZ

Average humidity in January - Poston, AZ
  • Average humidity in January: 39%

The months with the highest relative humidity are January and December (39%).
The month with the lowest relative humidity is June (15%).

Average rainfall in January
Poston, AZ

Average rainfall in January - Poston, AZ
  • Average rainfall in January: 0.31"

The wettest month (with the highest rainfall) is July (0.59").
The driest months (with the least rainfall) are May and June (0.04").

Average rainfall days in January
Poston, AZ

Average rainfall days in January - Poston, AZ
  • Average rainfall days in January: 2.3 days

The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is May (1.2 days).

Average daylight in January /
Average sunshine in January
Poston, AZ

Average daylight in January / Average sunshine in January - Poston, AZ
  • Average daylight in January: 10h and 1min

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 54min).

  • Average sunshine in January: 7h and 4min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in January
Poston, AZ

Average sunshine days in January - Poston, AZ
  • Average sunshine days in January: 28.2 days

The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (20.2 days).

Average UV index in January
Poston, AZ

Average UV index in January - Poston, AZ
  • Average UV index in January: 4

The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in January
Poston, AZ

Average cloud cover in January - Poston, AZ
  • Average cloud cover in January: 17

The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).

Average visibility in January
Poston, AZ

Average visibility in January - Poston, AZ
  • 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).

Poston, Arizona, USA

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