January weather forecast
Parker, AZ

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The calm Colorado River, riverside city of Parker in Arizona, and the dramatic mountainous landscape
The calm Colorado River, riverside city of Parker in Arizona, and the dramatic mountainous landscape

Weather in January

January weather in Parker, Arizona signals the middle of winter with cooler temperatures than the scorching summer months. The range of temperatures transition from 63.1°F (17.3°C) to 47.3°F (8.5°C). Dry conditions persist and rain is rare, making crisp winter walks a delightful experience. Variations in daily sunlight and visibility make for beautiful sunrises and sunsets. Although moisture is low this month, the pleasant daytime temperatures, lower wind speeds, and lesser cloud percentage make January a preferred month for outdoor activities.

Temperature

The arrival of January brings an average high-temperature of a still enjoyable 63.1°F (17.3°C), nearly identical to December's 61.2°F (16.2°C). In the month of January, Parker experiences an average low-temperature of 47.3°F (8.5°C).

Humidity

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

Rainfall

In Parker, in January, it is raining for 2.3 days, with typically 0.31" (8mm) of accumulated precipitation. In Parker, during the entire year, the rain falls for 39.4 days and collects up to 3.9" (99mm) of precipitation.

Daylight

In January, the average length of the day is 10h and 11min.
On the first day of January, sunrise is at 7:42 am and sunset at 5:38 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 6:06 pm MST.

Sunshine

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

UV index

The average daily maximum UV index in January is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In January, an average UV index of 4 transforms into the following instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. 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.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Parker in January?

The average high-temperature and low-temperature during January are 63.1°F (17.3°C) and 47.3°F (8.5°C) respectively.

What is the most humid month?

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 much does it rain in Parker in January?

In Parker, 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?

In Parker, the average day length in January is 10h and 11min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:42 am and sunset at 5:38 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 Parker, the average sunshine duration in January is 7.6h.

How high is the UV index in January?

In January, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Parker, AZ

Average temperature in January - Parker, 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
Parker, AZ

Average pressure in January - Parker, 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
Parker, AZ

Average wind speed in January - Parker, 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
Parker, AZ

Average humidity in January - Parker, 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
Parker, AZ

Average rainfall in January - Parker, 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
Parker, AZ

Average rainfall days in January - Parker, 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
Parker, AZ

Average daylight in January / Average sunshine in January - Parker, 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
Parker, AZ

Average sunshine days in January - Parker, 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
Parker, AZ

Average UV index in January - Parker, 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
Parker, AZ

Average cloud cover in January - Parker, 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
Parker, AZ

Average visibility in January - Parker, 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).

Parker, Arizona, USA

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