January weather forecast
Toppenish, WA

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Weather in January

January, the same as December, is a wintry winter month in Toppenish, Washington, with an average temperature fluctuating between 37.2°F (2.9°C) and 27°F (-2.8°C).

Temperature

The commencement of January brings an average high-temperature of a still icy 37.2°F (2.9°C), marking an inconsequential divergence from December. In January, Toppenish experiences an average nighttime temperature of 27°F (-2.8°C).

Humidity

The most humid month in Toppenish is January, with an average relative humidity of 82%.

Rainfall

January is the month with the most rainfall in Toppenish. Rain falls for 10.2 days and accumulates 1.02" (26mm) of precipitation.

Snowfall

January through March, September, November and December are months with snowfall in Toppenish. In Toppenish, during January, snow falls for 4.2 days and regularly aggregates up to 2.01" (51mm) of snow. In Toppenish, during the entire year, snow falls for 17.1 days and aggregates up to 6.69" (170mm) of snow.

Daylight

In January, the average length of the day is 9h and 6min.
On the first day of the month, sunrise is at 7:44 am and sunset at 4:24 pm. On the last day of January, sunrise is at 7:25 am and sunset at 5:03 pm PST.

Sunshine

January has the least sunshine of the year in Toppenish, with an average of 5.5h of sunshine.

UV index

The months with the lowest UV index in Toppenish are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In January, the UV index of 2 transforms into the following advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Updated: Feb 14, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

How cold is it in Toppenish in January?

During January, Toppenish experiences an average high-temperature of 37.2°F (2.9°C) and a low-temperature of 27°F (-2.8°C).

What is the most humid month in Toppenish?

The most humid month in Toppenish is January, with an average relative humidity of 82%.

What is the average humidity in January in Toppenish?

The average relative humidity in January is 82%.

What is the wettest month in Toppenish?

January is the month with the most rainfall in Toppenish, Washington. Rain falls for 10.2 days and accumulates 1.02" (26mm) of precipitation.

How many days does it rain in January in Toppenish?

In January, in Toppenish, Washington, the rain falls for 10.2 days. Throughout January, 1.02" (26mm) of precipitation is accumulated.

How much does it snow in Toppenish in January?

In January, in Toppenish, Washington, it is snowing for 4.2 days. Throughout January, 2.01" (51mm) of snow is accumulated.

How many hours of daylight does Toppenish have in January?

The average day length in January is 9h and 6min.

When are sunrise and sunset in January in Toppenish?

On the first day of January in Toppenish, sunrise is at 7:44 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:03 pm PST.

What is the month with the least sunshine in Toppenish?

January has the least sunshine of the year in Toppenish, Washington, with an average of 5.5h of sunshine.

How many hours of sunshine does Toppenish have in January?

The average sunshine duration in January in Toppenish, Washington, is 5.5h.

When is the lowest UV index in Toppenish?

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

How high is the UV index in January in Toppenish?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Toppenish, WA

Average temperature in January - Toppenish, WA
  • Average high temperature in January: 37.2°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (36.7°F).

  • Average low temperature in January: 27°F

The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (25.7°F).

Average pressure in January
Toppenish, WA

Average pressure in January - Toppenish, WA
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

Average wind speed in January
Toppenish, WA

Average wind speed in January - Toppenish, WA
  • Average wind speed in January: 4.8mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).

Average humidity in January
Toppenish, WA

Average humidity in January - Toppenish, WA
  • Average humidity in January: 82%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is July (38%).

Average rainfall in January
Toppenish, WA

Average rainfall in January - Toppenish, WA
  • Average rainfall in January: 1.02"

The wettest month (with the highest rainfall) is January (1.02").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in January
Toppenish, WA

Average rainfall days in January - Toppenish, WA
  • Average rainfall days in January: 10.2 days

The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is July (3.5 days).

Average snowfall in January
Toppenish, WA

Average snowfall in January - Toppenish, WA
  • Average snowfall in January: 2.01"

The month with the highest snowfall is February (2.4").
The months with the least snowfall are April, May, June, July, August and October (0").

Average snowfall days in January
Toppenish, WA

Average snowfall days in January - Toppenish, WA
  • Average snowfall days in January: 4.2 days

The month with the highest number of snowfall days is December (5 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).

Average daylight in January /
Average sunshine in January
Toppenish, WA

Average daylight in January / Average sunshine in January - Toppenish, WA
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in January: 5h and 3min

The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).

Average sunshine days in January
Toppenish, WA

Average sunshine days in January - Toppenish, WA
  • Average sunshine days in January: 16.8 days

The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is February (14.6 days).

Average UV index in January
Toppenish, WA

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

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

Average cloud cover in January
Toppenish, WA

Average cloud cover in January - Toppenish, WA
  • Average cloud cover in January: 42

The month with the most cloud cover is January (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 9).

Average visibility in January
Toppenish, WA

Average visibility in January - Toppenish, WA
  • Average visibility in January: 5mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Toppenish, Washington, USA

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