January weather forecast and climate
Riviera, AZ

Weather in January

January, like December, is another mild winter month in Riviera, Arizona, with average temperature fluctuating between 44.2°F (6.8°C) and 57.9°F (14.4°C).

Temperature

In January, the average high-temperature is almost the same as in December - a still mild 57.9°F (14.4°C). In Riviera, Arizona, in January, the average low-temperature is 44.2°F (6.8°C).

Humidity

The most humid month is January, with an average relative humidity of 42%.

Rainfall

In January, the rain falls for 4 days. Throughout January, 0.43" (11mm) of precipitation is accumulated. In Riviera, during the entire year, the rain falls for 44 days and collects up to 4.21" (107mm) of precipitation.

Snowfall

January through November are months without snowfall.

Daylight

In Riviera, the average length of the day in January is 10.1h.

Sunshine

In January, the average sunshine is 7.5h.

UV index

In Riviera, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 4 in January transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. 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 Riviera?

The average high-temperature, in January, in Riviera, is 57.9°F (14.4°C), while the average low-temperature is 44.2°F (6.8°C).

What is the most humid month in Riviera?

January is the most humid month in Riviera, with an average relative humidity of 42%.

What is the average humidity in January in Riviera?

The average relative humidity in January in Riviera is 42%.

How much does it rain in Riviera in January?

In Riviera, in January, it is raining for 4 days, with typically 0.43" (11mm) of accumulated precipitation.

Does it snow in Riviera in January?

In January, it doesn't snow. December is the latest month when it typically snows.

When it does not snow in Riviera?

In Riviera snow does not fall in January through November.

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

In Riviera, the average length of the day in January is 10.1h.

How many hours of sunshine does Riviera have in January?

In Riviera, Arizona, the average sunshine in January is 7.5h.

How high is the UV index in January in Riviera?

In Riviera, Arizona, the average daily maximum UV index in January is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to the Sun's UV rays.

Average temperature in January
Riviera, AZ

Average temperature in January - Riviera, AZ
  • Average high temperature in January: 57.9°F

The warmest month (with the highest average high temperature) is July (100.8°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in January: 44.2°F

The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is December (43.5°F).

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Average pressure in January
Riviera, AZ

Average pressure in January - Riviera, AZ
  • Average pressure in January: 30.11"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.76").

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Average wind speed in January
Riviera, AZ

Average wind speed in January - Riviera, AZ
  • Average wind speed in January: 9.4mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is September (7.6mph).

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Average humidity in January
Riviera, AZ

Average humidity in January - Riviera, AZ
  • Average humidity in January: 42%

The month with the highest relative humidity is January (42%).
The month with the lowest relative humidity is June (14%).

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Average rainfall in January
Riviera, AZ

Average rainfall in January - Riviera, AZ
  • Average rainfall in January: 0.43"

The wettest month (with the highest rainfall) is December (0.67").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in January
Riviera, AZ

Average rainfall days in January - Riviera, AZ
  • Average rainfall days in January: 4 days

The month with the highest number of rainy days is July (5.9 days).
The month with the least rainy days is June (1.1 days).

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Average snowfall days in January
Riviera, AZ

Average snowfall days in January - Riviera, AZ
  • Average snowfall days in January: 0 days

The month with the highest number of snowfall days is December (0.1 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in January / Average sunshine in January - Riviera, AZ
  • Average daylight in January: 10.1h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in January: 7.5h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 7h).

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Average sunshine days in January
Riviera, AZ

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

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is July (20.3 days).

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Average UV index in January
Riviera, AZ

Average UV index in January - Riviera, 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
Riviera, AZ

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

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

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Average visibility in January
Riviera, AZ

Average visibility in January - Riviera, 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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