December weather forecast
Odessa, WA

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Weather in December

The first month of the winter, December, is still a cold month in Odessa, Washington, with an average temperature ranging between min 25.2°F (-3.8°C) and max 33.8°F (1°C).

Temperature

Odessa's coldest month, December, generally records average temperatures ranging from a high of 33.8°F (1°C) to a low of 25.2°F (-3.8°C).

Humidity

In December, the average relative humidity in Odessa, Washington, is 82%.

Rainfall

In December, the rain falls for 8.4 days. Throughout December, 1.22" (31mm) of precipitation is accumulated. In Odessa, during the entire year, the rain falls for 109 days and collects up to 10.59" (269mm) of precipitation.

Snowfall

January through April, September through December are months with snowfall. In Odessa, in December, snow falls for 7.8 days, with typically accumulated 3.35" (85mm) of snow. In Odessa, during the entire year, snow falls for 28.2 days and aggregates up to 12.48" (317mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 30min of daylight.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:06 pm. On the last day of December, in Odessa, sunrise is at 7:41 am and sunset at 4:14 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 4.6h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A daily high UV index of 2 in December leads to these guidelines:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Around midday, solar radiation is most harmful; hence, exposure should be limited. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Odessa?

December, with average temperatures reaching a high of 33.8°F (1°C) and a low of 25.2°F (-3.8°C), is the coldest month in Odessa.

How cold is it in Odessa in December?

In December, in Odessa, the average high-temperature is 33.8°F (1°C), and the average low-temperature is 25.2°F (-3.8°C).

What is the average humidity in December in Odessa?

The average relative humidity in December in Odessa, Washington, is 82%.

How many days does it rain in December in Odessa?

In December, the rain falls for 8.4 days. Throughout December, 1.22" (31mm) of precipitation is accumulated.

How much does it snow in Odessa in December?

In Odessa, in December, during 7.8 snowfall days, 3.35" (85mm) of snow is typically accumulated.

What is the month with the shortest days in Odessa?

With an average of 8h and 30min of daylight, December has the shortest days of the year in Odessa.

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

In Odessa, the average day length in December is 8h and 32min.

When are sunrise and sunset in December in Odessa?

On the first day of December in Odessa, Washington, sunrise is at 7:21 am and sunset at 4:06 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:14 pm PST.

What is the month with the least sunshine in Odessa?

With an average of 4.6h of sunshine, December has the least sunshine of the year in Odessa, Washington.

How many hours of sunshine does Odessa have in December?

In Odessa, the average sunshine duration in December is 4.6h.

When is the lowest UV index in Odessa?

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 intensity in December in Odessa?

In December, the average daily maximum UV index in Odessa, Washington, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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 December
Odessa, WA

Average temperature in December - Odessa, WA
  • Average high temperature in December: 33.8°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (33.8°F).

  • Average low temperature in December: 25.2°F

The month with the highest average low temperature is August (64.6°F).
The coldest month (with the lowest average low temperature) is December (25.2°F).

Average pressure in December
Odessa, WA

Average pressure in December - Odessa, 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 (29.9"Hg).

Average wind speed in December
Odessa, WA

Average wind speed in December - Odessa, WA
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).

Average humidity in December
Odessa, WA

Average humidity in December - Odessa, WA
  • Average humidity in December: 82%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (34%).

Average rainfall in December
Odessa, WA

Average rainfall in December - Odessa, WA
  • Average rainfall in December: 1.22"

The wettest month (with the highest rainfall) is March (1.38").
The driest months (with the least rainfall) are July and August (0.31").

Average rainfall days in December
Odessa, WA

Average rainfall days in December - Odessa, WA
  • Average rainfall days in December: 8.4 days

The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is July (4.2 days).

Average snowfall in December
Odessa, WA

Average snowfall in December - Odessa, WA
  • Average snowfall in December: 3.35"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in December
Odessa, WA

Average snowfall days in December - Odessa, WA
  • Average snowfall days in December: 7.8 days

The month with the highest number of snowfall days is December (7.8 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Odessa, WA
  • Average daylight in December: 8h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in December: 4h and 4min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

Average sunshine days in December
Odessa, WA

Average sunshine days in December - Odessa, WA
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (14.2 days).

Average UV index in December
Odessa, WA

Average UV index in December - Odessa, 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
Odessa, WA

Average cloud cover in December - Odessa, WA
  • Average cloud cover in December: 51

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 11).

Average visibility in December
Odessa, WA

Average visibility in December - Odessa, WA
  • Average visibility in December: 6mi

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).

Odessa, Washington, USA

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