January weather forecast
Tempe, AZ

Share
The Tempe Town Lake of Tempe City, Arizona
The Tempe Town Lake of Tempe City, Arizona

Weather in January

January is considered the coldest month in Tempe, Arizona, with temperatures ranging from 46.9°F to 64°F. However, the city still receives more than 7.1 hours of sunlight, allowing for comfortable outdoor activities. Wind speeds are moderate, and the pressure is relatively high, making this a calm period. The climate remains dry despite being the second-highest month in terms of relative humidity. With a mere 0.59" of rainfall over just 4.3 days on average, January embodies a mild winter season.

Temperature

Transitioning from December to January, Tempe observes an average high-temperature of a still comfortable 64°F, differing subtly from the previous month. Nighttime temperatures in January average to a chilly 46.9°F in Tempe.

Humidity

In January, the average relative humidity is 43%.

Rainfall

In January, the rain falls for 4.3 days. Throughout January, 0.59" of precipitation is accumulated. Throughout the year, there are 57.7 rainfall days, and 7.72" of precipitation is accumulated.

Daylight

In January, the average length of the day in Tempe is 10h and 14min.
On the first day of the month, sunrise is at 7:31 am and sunset at 5:30 pm. On the last day of January, in Tempe, sunrise is at 7:24 am and sunset at 5:58 pm MST.

Sunshine

The average sunshine in January in Tempe is 7.1h.

UV index

In January, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 4 during January translates into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
[Resources]

FAQ

What is the temperature in January in Tempe?

In Tempe, 64°F is the average high-temperature and 46.9°F is the average low-temperature during January.

What is the average humidity in January in Tempe?

The average relative humidity in January in Tempe, Arizona, is 43%.

How many days does it rain in January in Tempe?

In Tempe, in January, it is raining for 4.3 days, with typically 0.59" of accumulated precipitation.

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

In Tempe, the average day length in January is 10h and 14min.

When are sunrise and sunset in January in Tempe?

In January, on the first day of the month, sunrise is at 7:31 am and sunset at 5:30 pm. On the last day of the month, in Tempe, Arizona, sunrise is at 7:24 am and sunset at 5:58 pm MST.

How long on average sun shines in January in Tempe?

In Tempe, Arizona, the average sunshine duration in January is 7.1h.

What is the UV index reading in January in Tempe?

The average daily maximum UV index in January is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Tempe, AZ

Average temperature in January - Tempe, AZ
  • Average high temperature in January: 64°F

The warmest month (with the highest average high temperature) is July (102.6°F).
The month with the lowest average high temperature is December (62.8°F).

  • Average low temperature in January: 46.9°F

The month with the highest average low temperature is August (84.4°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).

[Resources]

Average pressure in January
Tempe, AZ

Average pressure in January - Tempe, 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 (29.81"Hg).

[Resources]

Average wind speed in January
Tempe, AZ

Average wind speed in January - Tempe, AZ
  • Average wind speed in January: 4.6mph

The windiest months (with the highest average wind speed) are April and May (6.3mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).

[Resources]

Average humidity in January
Tempe, AZ

Average humidity in January - Tempe, 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 (16%).

[Resources]

Average rainfall in January
Tempe, AZ

Average rainfall in January - Tempe, AZ
  • Average rainfall in January: 0.59"

The wettest month (with the highest rainfall) is July (1.14").
The driest month (with the least rainfall) is June (0.08").

[Resources]

Average rainfall days in January
Tempe, AZ

Average rainfall days in January - Tempe, AZ
  • Average rainfall days in January: 4.3 days

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is June (1 days).

[Resources]

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

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in January: 7h and 1min

The months with the most sunshine are June and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

[Resources]

Average sunshine days in January
Tempe, AZ

Average sunshine days in January - Tempe, AZ
  • Average sunshine days in January: 26 days

The month with the most sunshine days is May (28.7 days).
The month with the least sunshine days is July (16.8 days).

[Resources]

Average UV index in January
Tempe, AZ

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

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

[Resources]

Average cloud cover in January
Tempe, AZ

Average cloud cover in January - Tempe, 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).

[Resources]

Average visibility in January
Tempe, AZ

Average visibility in January - Tempe, 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).

[Resources]

Tempe, Arizona, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location