December weather forecast
Paterson, WA

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Weather in December

December, the first month of the winter in Paterson, is also an icy month, with an average temperature varying between 38.7°F (3.7°C) and 29.1°F (-1.6°C).

Temperature

Paterson's December weather, with an average high temperature of 38.7°F (3.7°C) and an average low temperature of 29.1°F (-1.6°C), tends to be the coldest of the year.

Humidity

The average relative humidity in December in Paterson is 77%.

Rainfall

In Paterson, in December, during 11.4 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In Paterson, during the entire year, the rain falls for 102.3 days and collects up to 7.09" (180mm) of precipitation.

Snowfall

Months with snowfall are January through March, September, November and December. In Paterson, Washington, in December, snow falls for 3.3 days, with typically accumulated 1.22" (31mm) of snow. Throughout the year, in Paterson, there are 10 snowfall days, and 5.28" (134mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 42min of daylight.
On the first day of December, sunrise is at 7:20 am and sunset at 4:15 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:23 pm PST.

Sunshine

The average sunshine in December is 5.6h.

UV index

The months with the lowest UV index in Paterson are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Paterson?

The month of December, characterized by an average high of 38.7°F (3.7°C) and a low of 29.1°F (-1.6°C), is recognized as the coldest in Paterson, Washington.

How cold does it get in Paterson in December?

During December, Paterson experiences an average high-temperature of 38.7°F (3.7°C) and a low-temperature of 29.1°F (-1.6°C).

What is the average humidity in December in Paterson?

The average relative humidity in December in Paterson, Washington, is 77%.

How many days does it rain in December in Paterson?

In December, in Paterson, the rain falls for 11.4 days. Throughout December, 0.87" (22mm) of precipitation is accumulated.

How much does it snow in Paterson in December?

In Paterson, Washington, in December, snow falls for 3.3 days, with typically accumulated 1.22" (31mm) of snow.

What is the month with the shortest days in Paterson?

With an average of 8h and 42min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Paterson?

In Paterson, the average day length in December is 8h and 43min.

What time are sunrise and sunset in December in Paterson?

On the first day of December in Paterson, sunrise is at 7:20 am and sunset at 4:15 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:23 pm PST.

How many hours of sunshine does Paterson have in December?

The average sunshine duration in December in Paterson, Washington, is 5.6h.

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

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

What is the UV index reading in December in Paterson?

In December, the average daily maximum UV index in Paterson, Washington, is 2. A UV Index reading of 2, and below, represents 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 December
Paterson, WA

Average temperature in December - Paterson, WA
  • Average high temperature in December: 38.7°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is December (38.7°F).

  • Average low temperature in December: 29.1°F

The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (29.1°F).

Average pressure in December
Paterson, WA

Average pressure in December - Paterson, WA
  • Average pressure in December: 30.16"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).

Average wind speed in December
Paterson, WA

Average wind speed in December - Paterson, WA
  • Average wind speed in December: 6.3mph

The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is December (6.3mph).

Average humidity in December
Paterson, WA

Average humidity in December - Paterson, WA
  • Average humidity in December: 77%

The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (37%).

Average rainfall in December
Paterson, WA

Average rainfall in December - Paterson, WA
  • Average rainfall in December: 0.87"

The wettest month (with the highest rainfall) is January (0.98").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in December
Paterson, WA

Average rainfall days in December - Paterson, WA
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is March (12.7 days).
The month with the least rainy days is July (3.8 days).

Average snowfall in December
Paterson, WA

Average snowfall in December - Paterson, WA
  • Average snowfall in December: 1.22"

The month with the highest snowfall is February (2.05").
The months with the least snowfall are April, May, June, July, August and October (0").

Average snowfall days in December
Paterson, WA

Average snowfall days in December - Paterson, WA
  • Average snowfall days in December: 3.3 days

The month with the highest number of snowfall days is December (3.3 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).

Average daylight in December /
Average sunshine in December
Paterson, WA

Average daylight in December / Average sunshine in December - Paterson, WA
  • Average daylight in December: 8h and 4min

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 December: 5h and 4min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).

Average sunshine days in December
Paterson, WA

Average sunshine days in December - Paterson, WA
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is February (14.7 days).

Average UV index in December
Paterson, WA

Average UV index in December - Paterson, WA
  • Average UV index in December: 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 December
Paterson, WA

Average cloud cover in December - Paterson, WA
  • Average cloud cover in December: 42

The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 9).

Average visibility in December
Paterson, WA

Average visibility in December - Paterson, WA
  • Average visibility in December: 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).

Paterson, Washington, USA

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