Sierra Vista
Arizona, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Sierra Vista, AZ

The vast Sierra Vista region of Arizona, and a view of a local church and distant mountain ranges
The vast Sierra Vista region of Arizona, and a view of a local church and distant mountain ranges
January, the same as December, is another enjoyable winter month in Sierra Vista, Arizona, with temperature in the range of an average low of 34.2°F (1.2°C) and an average high of 61.2°F (16.2°C).

Temperature

The coldest month is January, with an average high-temperature of 61.2°F (16.2°C) and an average low-temperature of 34.2°F (1.2°C).

Rainfall

In January, in Sierra Vista, the rain falls for 4 days. Throughout January, 0.8" (20mm) of precipitation is accumulated. Throughout the year, there are 52 rainfall days, and 13.9" (352mm) of precipitation is accumulated.

Snowfall

January through March and December are months with snowfall. The month with the most snowfall is January when 0.3" (7.6mm) of snow is typically aggregated.

Daylight

In Sierra Vista, Arizona, the average length of the day is 10.4h.

Sunshine

In Sierra Vista, the average sunshine is 8h.

UV index

In Sierra Vista, Arizona, the average daily maximum UV index in January is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 4 in January interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the coldest month in Sierra Vista?

With an average high-temperature of 61.2°F (16.2°C) and an average low-temperature of 34.2°F (1.2°C), January is the coldest month in Sierra Vista, Arizona.

What is the temperature in January in Sierra Vista?

The average high-temperature, in January, in Sierra Vista, Arizona, is 61.2°F (16.2°C), while the average low-temperature is 34.2°F (1.2°C).

How much does it rain in Sierra Vista in January?

In January, in Sierra Vista, the rain falls for 4 days. Throughout January, 0.8" (20mm) of precipitation is accumulated.

How much does it snow in Sierra Vista in January?

During January, Sierra Vista regularly aggregates up to 0.3" (7.6mm) of snow.

What is the snowiest month in Sierra Vista?

January is the month with the most snowfall in Sierra Vista, with 0.3" (7.6mm) of accumulated snow.

What is the average length of the day in January in Sierra Vista?

In Sierra Vista, Arizona, the average length of the day in January is 10.4h.

How many hours of sunshine does Sierra Vista have in January?

The average sunshine in January in Sierra Vista, Arizona, is 8h.

How high is the UV index in January in Sierra Vista?

The average daily maximum UV index in January in Sierra Vista, Arizona, is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in January - Sierra Vista, AZ
  • Average high temperature in January: 61.2°F

The warmest month (with the highest average high temperature) is June (92.9°F).
The month with the lowest average high temperature is January (61.2°F).

  • Average low temperature in January: 34.2°F

The month with the highest average low temperature is July (66.3°F).
The coldest month (with the lowest average low temperature) is December (33.9°F).

Average rainfall in January - Sierra Vista, AZ
  • Average rainfall in January: 0.8"

The wettest month (with the highest rainfall) is July (3.8").
The driest month (with the lowest rainfall) is May (0.1").

Average rainfall days in January - Sierra Vista, AZ
  • Average rainfall days in January: 4 days

The month with the highest number of rainy days is August (12 days).
The month with the lowest number of rainy days is May (1 days).

Average snowfall in January - Sierra Vista, AZ
  • Average snowfall in January: 0.3"

The month with the highest snowfall is January (0.3").
Months with the lowest snowfall are April, May, June, July, August, September, October and November (0").

Average daylight in January / Average sunshine in January - Sierra Vista, AZ
  • Average daylight in January: 10.4h

The month with the longest days is June (Average daylight: 14.2h).
The month with shortest days is December (Average daylight: 10.1h).

  • Average sunshine in January: 8h

Months with most sunshine are May and June (Average sunshine: 12h).
The month with least sunshine is December (Average sunshine: 7h).

Average UV index in January - Sierra Vista, AZ
  • Average UV index in January: 4

The month with the highest UV index is July (UV index 12).
The month with the lowest UV index is December (UV index 3).