January weather forecast and climate
Mesa, AZ

The scenic city of Mesa in Arizona, with a view of the famous well-manicured golf course near the Red Mountain range
The scenic city of Mesa in Arizona, with a view of the famous well-manicured golf course near the Red Mountain range

Weather in January

January, like December, in Mesa, Arizona, is another enjoyable winter month, with temperature in the range of an average low of 46.4°F (8°C) and an average high of 63.9°F (17.7°C).

Temperature

In Mesa, the average high-temperature is practically the same as in December - a still comfortable 63.9°F (17.7°C). The average low-temperature, in January, is 46.4°F (8°C).

Humidity

The average relative humidity in Mesa is 43%.

Rainfall

In Mesa, it is raining for 4.8 days, with typically 0.71" (18mm) of accumulated precipitation. In Mesa, during the entire year, the rain falls for 60.2 days and collects up to 7.91" (201mm) of precipitation.

Daylight

In Mesa, the average length of the day in January is 10.2h.

Sunshine

The average sunshine in Mesa is 7.1h.

UV index

The average daily maximum UV index in Mesa is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in January in Mesa?

In January, the average high-temperature is 63.9°F (17.7°C), and the average low-temperature is 46.4°F (8°C).

What is the average humidity in January in Mesa?

In January, the average relative humidity in Mesa is 43%.

How many days does it rain in January in Mesa?

In Mesa, Arizona, in January, it is raining for 4.8 days, with typically 0.71" (18mm) of accumulated precipitation.

How many hours of daylight does Mesa have in January?

The average length of the day in January in Mesa is 10.2h.

How long on average sun shines in January in Mesa?

In Mesa, the average sunshine in January is 7.1h.

What is the UV index reading in January in Mesa?

In Mesa, the average daily maximum UV index in January is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to the UV radiation.

Average temperature in January
Mesa, AZ

Average temperature in January - Mesa, AZ
  • Average high temperature in January: 63.9°F

The warmest month (with the highest average high temperature) is July (101.8°F).
The month with the lowest average high temperature is December (62.4°F).

  • Average low temperature in January: 46.4°F

The month with the highest average low temperature is August (83.8°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).

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Average pressure in January
Mesa, AZ

Average pressure in January - Mesa, AZ
  • Average pressure in January: 30.09"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.82").

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Average wind speed in January
Mesa, AZ

Average wind speed in January - Mesa, AZ
  • Average wind speed in January: 4.7mph

The windiest months (with the highest average wind speed) are April and May (6.4mph).
The calmest month (with the lowest average wind speed) is December (4.5mph).

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Average humidity in January
Mesa, AZ

Average humidity in January - Mesa, AZ
  • Average humidity in January: 43%

The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (17%).

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Average rainfall in January
Mesa, AZ

Average rainfall in January - Mesa, AZ
  • Average rainfall in January: 0.71"

The wettest month (with the highest rainfall) is July (1.1").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in January
Mesa, AZ

Average rainfall days in January - Mesa, AZ
  • Average rainfall days in January: 4.8 days

The month with the highest number of rainy days is July (10.6 days).
The month with the least rainy days is June (1.2 days).

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

Average daylight in January / Average sunshine in January - Mesa, AZ
  • Average daylight in January: 10.2h

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: 7.1h

The month with the most sunshine is June (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6.8h).

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Average sunshine days in January
Mesa, AZ

Average sunshine days in January - Mesa, AZ
  • Average sunshine days in January: 25.5 days

The month with the most sunshine days is May (28.4 days).
The month with the least sunshine days is July (17.6 days).

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Average UV index in January
Mesa, AZ

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

Months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in January
Mesa, AZ

Average cloud cover in January - Mesa, AZ
  • Average cloud cover in January: 18

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in January
Mesa, AZ

Average visibility in January - Mesa, AZ
  • 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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