Yakima
Washington, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Yakima, WA

January, the same as December, is a wintry winter month in Yakima, Washington, with average temperature varying between 26.6°F (-3°C) and 37.6°F (3.1°C).

Temperature

In Yakima, Washington, the average high-temperature in January is almost the same as in December - a still cold 37.6°F (3.1°C). In Yakima, the average low-temperature is 26.6°F (-3°C).

Humidity

January is the most humid month, with an average relative humidity of 81%.

Rainfall

January is the month with the most rainfall in Yakima. Rain falls for 10.3 days and accumulates 0.87" (22mm) of precipitation.

Snowfall

Months with snowfall are January through March, September, November and December. In January, in Yakima, it is snowing for 4.5 days. Throughout January, 2.05" (52mm) of snow is accumulated. In Yakima, during the entire year, snow falls for 18.5 days, and aggregates up to 7.8" (198mm) of snow.

Daylight

In Yakima, the average length of the day in January is 9.1h.

Sunshine

The month with the least sunshine in Yakima, Washington, is January, with an average of 5.6h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Yakima. A UV Index estimate of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 2 in January transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in January in Yakima?

The average high-temperature, in January, is 37.6°F (3.1°C), while the average low-temperature is 26.6°F (-3°C).

What is the most humid month in Yakima?

January is the most humid month, with an average relative humidity of 81%.

What is the average humidity in January in Yakima?

In January, the average relative humidity is 81%.

How much does it rain in Yakima in January?

In January, in Yakima, Washington, the rain falls for 10.3 days. Throughout January, 0.87" (22mm) of precipitation is accumulated.

What is the rainiest month in Yakima?

The month with the most rainfall in Yakima, Washington, is January when the rain falls for 10.3 days and typically aggregates up to 0.87" (22mm) of precipitation.

How much does it snow in Yakima in January?

In Yakima, during January, snow falls for 4.5 days and regularly aggregates up to 2.05" (52mm) of snow.

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

In January, the average length of the day in Yakima, Washington, is 9.1h.

What is the month with the least sunshine in Yakima?

With an average of 5.6h of sunshine, January has the least sunshine of the year.

How many hours of sunshine does Yakima have in January?

In January, the average sunshine in Yakima is 5.6h.

What are the months with the lowest UV index in Yakima?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Yakima.

What is the UV index intensity in January in Yakima?

The average daily maximum UV index in January in Yakima, Washington, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV rays.
Average temperature in January - Yakima, WA
  • Average high temperature in January: 37.6°F

The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (36.9°F).

  • Average low temperature in January: 26.6°F

The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).

Average humidity in January - Yakima, WA
  • Average humidity in January: 81%

The month with the highest relative humidity is January (81%).
Months with the lowest relative humidity are July and August (39%).

Average rainfall in January - Yakima, WA
  • Average rainfall in January: 0.87"

The wettest month (with the highest rainfall) is January (0.87").
The driest month (with the least rainfall) is July (0.08").

Average rainfall days in January - Yakima, WA
  • Average rainfall days in January: 10.3 days

The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is August (2 days).

Average snowfall in January - Yakima, WA
  • Average snowfall in January: 2.05"

The month with the highest snowfall is December (2.76").
Months with the least snowfall are April, May, June, July, August and October (0").

Average snowfall days in January - Yakima, WA
  • Average snowfall days in January: 4.5 days

The month with the highest number of snowfall days is December (5.4 days).
Months with the least snowfall days are May, June, July, August and October (0 days).

Average daylight in January / Average sunshine in January - Yakima, WA
  • Average daylight in January: 9.1h

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in January: 5.6h

Months with the most sunshine are July and August (Average sunshine: 12.1h).
The month with the least sunshine is January (Average sunshine: 5.6h).

Average UV index in January - Yakima, WA
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 2).