January weather forecast
Washington, OK

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Weather in January

January, the same as December, in Washington, Oklahoma, is a frosty winter month, with an average temperature fluctuating between 49.5°F (9.7°C) and 33.3°F (0.7°C).

Temperature

January, recording an average high temperature of 49.5°F (9.7°C) and a low temperature of 33.3°F (0.7°C), is Washington's coldest month.

Humidity

The average relative humidity in January is 63%.

Rainfall

In Washington, during January, the rain falls for 5.2 days and regularly aggregates up to 1.14" (29mm) of precipitation. Throughout the year, there are 116.5 rainfall days, and 24.21" (615mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Washington, in January, snow falls for 1.7 days, with typically accumulated 0.75" (19mm) of snow. Throughout the year, there are 6.5 snowfall days, and 3.74" (95mm) of snow is accumulated.

Daylight

The average length of the day in January is 10h and 7min.
On the first day of the month, sunrise is at 7:37 am and sunset at 5:28 pm. On the last day of January, sunrise is at 7:29 am and sunset at 5:57 pm CST.

Sunshine

The average sunshine in January is 6.1h.

UV index

In January, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: An average UV index of 3 in January transforms into this advice:
Adopt protective measures - It is advised to guard against sun damage. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.

Frequently asked questions

What is the coldest month?

In Washington, the lowest temperatures are generally noted in January, averaging a high of 49.5°F (9.7°C) and a low of 33.3°F (0.7°C).

What is the temperature in January?

The average high-temperature, in January, in Washington, is 49.5°F (9.7°C), while the average low-temperature is 33.3°F (0.7°C).

What is the average humidity in January?

In January, the average relative humidity is 63%.

How much does it rain in January?

In Washington, during January, the rain falls for 5.2 days and regularly aggregates up to 1.14" (29mm) of precipitation.

How many days does it snow in January in Washington?

In Washington, in January, snow falls for 1.7 days, with typically accumulated 0.75" (19mm) of snow.

What is the average length of the day in January?

In January, the average day length is 10h and 7min.

When is the sunrise / sunset in January in Washington?

On the first day of January in Washington, sunrise is at 7:37 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:57 pm CST.

How many hours of sunshine does Washington have in January?

The average sunshine duration in January is 6.1h.

What is the UV index reading in January?

In Washington, the average daily maximum UV index in January is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
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
Washington, OK

Average temperature in January - Washington, OK
  • Average high temperature in January: 49.5°F

The warmest months (with the highest average high temperature) are July and August (93°F).
The month with the lowest average high temperature is January (49.5°F).

  • Average low temperature in January: 33.3°F

The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).

Average pressure in January
Washington, OK

Average pressure in January - Washington, OK
  • 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 June (29.88"Hg).

Average wind speed in January
Washington, OK

Average wind speed in January - Washington, OK
  • Average wind speed in January: 10.6mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).

Average humidity in January
Washington, OK

Average humidity in January - Washington, OK
  • Average humidity in January: 63%

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (60%).

Average rainfall in January
Washington, OK

Average rainfall in January - Washington, OK
  • Average rainfall in January: 1.14"

The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is November (0.98").

Average rainfall days in January
Washington, OK

Average rainfall days in January - Washington, OK
  • Average rainfall days in January: 5.2 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (5.2 days).

Average snowfall in January
Washington, OK

Average snowfall in January - Washington, OK
  • Average snowfall in January: 0.75"

The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Washington, OK

Average snowfall days in January - Washington, OK
  • Average snowfall days in January: 1.7 days

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Washington, OK

Average daylight in January / Average sunshine in January - Washington, OK
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in January: 6h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in January
Washington, OK

Average sunshine days in January - Washington, OK
  • Average sunshine days in January: 24 days

The month with the most sunshine days is January (24 days).
The month with the least sunshine days is May (14.4 days).

Average UV index in January
Washington, OK

Average UV index in January - Washington, OK
  • Average UV index in January: 3

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

Average cloud cover in January
Washington, OK

Average cloud cover in January - Washington, OK
  • Average cloud cover in January: 28

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in January
Washington, OK

Average visibility in January - Washington, OK
  • 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).

Washington, Oklahoma, USA

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