January weather forecast
Washington, IN

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Weather in January

January, the same as December, is another cold winter month in Washington, Indiana, with temperature in the range of an average high of 37°F (2.8°C) and an average low of 24.4°F (-4.2°C).

Temperature

January, characterized by an average high temperature of 37°F (2.8°C) and a low temperature of 24.4°F (-4.2°C), is generally the coldest month.

Humidity

In Washington, the average relative humidity in January is 78%.

Rainfall

In Washington, Indiana, in January, it is raining for 9.6 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, in Washington, there are 153.1 rainfall days, and 31.02" (788mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. January is the month with the most snowfall in Washington. Snow falls for 7.1 days and accumulates 1.69" (43mm) of snow.

Daylight

In January, the average length of the day is 9h and 50min.
On the first day of January, sunrise is at 8:06 am and sunset at 5:37 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 6:08 pm EST.

Sunshine

In Washington, the average sunshine in January is 4.6h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Washington. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 2 during January translates into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Washington?

Washington's temperature records reveal January as the coldest month, marked by average highs of 37°F (2.8°C) and lows of 24.4°F (-4.2°C).

How cold is January in Washington?

During January, Washington experiences an average high-temperature of 37°F (2.8°C) and a low-temperature of 24.4°F (-4.2°C).

What is the average humidity in January in Washington?

In January, the average relative humidity in Washington, Indiana, is 78%.

How many days does it rain in January in Washington?

In Washington, in January, it is raining for 9.6 days, with typically 2.24" (57mm) of accumulated precipitation.

What is the snowiest month in Washington?

January is the month with the most snowfall in Washington, Indiana. Snow falls for 7.1 days and accumulates 1.69" (43mm) of snow.

How many days does it snow in January in Washington?

In Washington, during January, snow falls for 7.1 days and regularly aggregates up to 1.69" (43mm) of snow.

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

In Washington, Indiana, the average day length in January is 9h and 50min.

What time are sunrise and sunset in January in Washington?

In January, on the first day of the month, sunrise is at 8:06 am and sunset at 5:37 pm. On the last day of the month, in Washington, Indiana, sunrise is at 7:55 am and sunset at 6:08 pm EST.

How many hours of sunshine does Washington have in January?

In Washington, the average sunshine duration in January is 4.6h.

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

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

What is the UV index reading in January in Washington?

The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe 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, IN

Average temperature in January - Washington, IN
  • Average high temperature in January: 37°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in January: 24.4°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

Average pressure in January
Washington, IN

Average pressure in January - Washington, IN
  • 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 (29.94"Hg).

Average wind speed in January
Washington, IN

Average wind speed in January - Washington, IN
  • Average wind speed in January: 9.1mph

The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity in January
Washington, IN

Average humidity in January - Washington, IN
  • Average humidity in January: 78%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in January
Washington, IN

Average rainfall in January - Washington, IN
  • Average rainfall in January: 2.24"

The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in January
Washington, IN

Average rainfall days in January - Washington, IN
  • Average rainfall days in January: 9.6 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in January
Washington, IN

Average snowfall in January - Washington, IN
  • Average snowfall in January: 1.69"

The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Washington, IN

Average snowfall days in January - Washington, IN
  • Average snowfall days in January: 7.1 days

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in January / Average sunshine in January - Washington, IN
  • Average daylight in January: 9h and 5min

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

  • Average sunshine in January: 4h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).

Average sunshine days in January
Washington, IN

Average sunshine days in January - Washington, IN
  • Average sunshine days in January: 15.8 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is May (10.5 days).

Average UV index in January
Washington, IN

Average UV index in January - Washington, IN
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Washington, IN

Average cloud cover in January - Washington, IN
  • Average cloud cover in January: 54

The months with the most cloud cover are January and February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in January
Washington, IN

Average visibility in January - Washington, IN
  • 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, Indiana, USA

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