January weather forecast
Washington, PA

Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
°Celsius°Fahrenheit
Share

Contents

Weather in January

January in Washington, Pennsylvania, brings with it a chilly embrace, as the winter season shows its true form. The low temperatures, which can drop to 20.8°F (-6.2°C), are complemented by an influx of snow, peaking at 1.06" (27mm). The city often shrouded in a thick blanket of clouds, casting a chill that is only intensified by the brisk wind speeds. The days are relatively short, with limited daylight hours, meaning that residents usually bundle up to ward off the cold. As the first month of the year, January sets a bitter but beautiful winter stage, making it an iconic image of the Pennsylvanian winter.

Temperature

January, recording an average high temperature of 33.6°F (0.9°C) and a low temperature of 20.8°F (-6.2°C), is Washington's coldest month.

Humidity

In Washington, Pennsylvania, the average relative humidity in January is 84%.

Rainfall

The months with the least rainfall in Washington are January and November Rain falls for 7.5 days and accumulates 0.94" (24mm) of rain.

Snowfall

January through May, October through December are months with snowfall in Washington. In January, in Washington, it is snowing for 9.8 days. Throughout January, 1.06" (27mm) of snow is accumulated. Throughout the year, in Washington, there are 33.5 snowfall days, and 4.88" (124mm) of snow is accumulated.

Daylight

The average length of the day in January in Washington is 9h and 42min.
On the first day of January in Washington, Pennsylvania, sunrise is at 7:43 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:37 pm EST.

Sunshine

The month with the least sunshine is January, with an average of 3h of sunshine.

UV index

In Washington, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
[Resources]

Frequently asked questions

What are the coldest months in Washington?

January is the month that records the lowest temperatures, with averages ranging from a high of 33.6°F (0.9°C) to a low of 20.8°F (-6.2°C).

How cold is January in Washington?

The high-temperature, in January, in Washington, records 33.6°F (0.9°C), while the low-temperature is 20.8°F (-6.2°C).

What is the average humidity in January in Washington?

In January, the average relative humidity in Washington, Pennsylvania, is 84%.

What is the driest month in Washington?

The months with the least rainfall in Washington are January and November Rain falls for 7.5 days and accumulates 0.94" (24mm) of rain.

How many days does it rain in January in Washington?

In Washington, in January, during 7.5 rainfall days, 0.94" (24mm) of precipitation is typically accumulated.

How many days does it snow in January in Washington?

In Washington, Pennsylvania, in January, snow falls for 9.8 days, with typically accumulated 1.06" (27mm) of snow.

How many hours of daylight does Washington have in January?

The average day length in January in Washington, Pennsylvania, is 9h and 42min.

What time are sunrise and sunset in January in Washington?

On the first day of January in Washington, sunrise is at 7:43 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:37 pm EST.

What is the month with the least sunshine in Washington?

The month with the least sunshine in Washington, Pennsylvania, is January, with an average of 3h of sunshine.

How many hours of sunshine does Washington have in January?

The average sunshine duration in January is 3h.

How high is the UV index in January in Washington?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
40.1°F 4.5°C
33.6°F 0.9°C
38.3°F 3.5°C
Average low temperature
28.6°F -1.9°C
20.8°F -6.2°C
23.7°F -4.6°C
Average pressure
30.11" 765mmHg
30.12" 765mmHg
30.08" 764mmHg
Average wind speed
7.1mph 11.4km/h
7.8mph 12.6km/h
7.6mph 12.2km/h
Average max. wind speed
7.7mph 12.4km/h
8.4mph 13.5km/h
8.2mph 13.2km/h
Average wind speed gusts
11.2mph 18km/h
12.1mph 19.5km/h
11.8mph 19km/h
Average humidity
84%
84%
85%
Average rainfall
1.06" 27mm
0.94" 24mm
0.98" 25mm
Average rainfall days
9.4
7.5
7.3
Average snowfall
0.83" 21mm
1.06" 27mm
1.26" 32mm
Average snowfall days
6.5
9.8
8.1
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
3h 3min
3h 0min
3h 5min
Average sunshine days
17.5
17.1
15.6
Average UV index
1
2
2
Average cloud cover
64%
68%
65%
Average visibility
5mi 8km
5mi 8km
5mi 8km

Average temperature in January
Washington, PA

Average temperature in January - Washington, PA
  • Average high temperature in January: 33.6°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in January: 20.8°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

[Resources]

Average pressure in January
Washington, PA

Average pressure in January - Washington, PA
  • Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

[Resources]

Average wind speed in January
Washington, PA

Average wind speed in January - Washington, PA
  • Average wind speed in January: 7.8mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

[Resources]

Average humidity in January
Washington, PA

Average humidity in January - Washington, PA
  • Average humidity in January: 84%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).

[Resources]

Average rainfall in January
Washington, PA

Average rainfall in January - Washington, PA
  • Average rainfall in January: 0.94"

The wettest month (with the highest rainfall) is July (1.65").
The driest months (with the least rainfall) are January and November (0.94").

[Resources]

Average rainfall days in January
Washington, PA

Average rainfall days in January - Washington, PA
  • Average rainfall days in January: 7.5 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (7.3 days).

[Resources]

Average snowfall in January
Washington, PA

Average snowfall in January - Washington, PA
  • Average snowfall in January: 1.06"

The month with the highest snowfall is February (1.26").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in January
Washington, PA

Average snowfall days in January - Washington, PA
  • Average snowfall days in January: 9.8 days

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

Average daylight in January / Average sunshine in January - Washington, PA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in January: 3h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

[Resources]

Average sunshine days in January
Washington, PA

Average sunshine days in January - Washington, PA
  • Average sunshine days in January: 17.1 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

[Resources]

Average UV index in January
Washington, PA

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

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

[Resources]

Average cloud cover in January
Washington, PA

Average cloud cover in January - Washington, PA
  • Average cloud cover in January: 68

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

[Resources]

Average visibility in January
Washington, PA

Average visibility in January - Washington, PA
  • Average visibility in January: 5mi

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

[Resources]

Washington, Pennsylvania, USA

Weather forecast for today
Weather forecast for tomorrow
10 days weather forecast
Climate data
1January
2February
3March
4April
5May
6June
7July
8August
9September
10October
11November
12December

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location