December weather forecast
Otis Orchards, WA

Share

Weather in December

December, the first month of the winter in Otis Orchards, is also a wintry month, with an average temperature ranging between min 21.9°F (-5.6°C) and max 32°F (0°C).

Temperature

In Otis Orchards, the lowest average temperatures are observed in December, with a high of 32°F (0°C) and a low of 21.9°F (-5.6°C).

Humidity

The average relative humidity in December in Otis Orchards is 88%.

Rainfall

In December, the rain falls for 8.9 days. Throughout December, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 125.4 rainfall days, and 17.28" (439mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Otis Orchards. In Otis Orchards, during December, snow falls for 13.9 days and regularly aggregates up to 8.9" (226mm) of snow. Throughout the year, there are 56.4 snowfall days, and 37.4" (950mm) of snow is accumulated.

Daylight

The month with the shortest days in Otis Orchards, Washington, is December, with an average of 8h and 30min of daylight.
On the first day of the month, sunrise is at 7:16 am and sunset at 3:58 pm. On the last day of December, sunrise is at 7:36 am and sunset at 4:06 pm PST.

Sunshine

January and December, with an average of 3.8h of sunshine, are months with the least sunshine in Otis Orchards.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Around midday, solar radiation is most harmful; hence, exposure should be limited. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
[Resources]

Frequently asked questions

What is the coldest time of year in Otis Orchards?

Otis Orchards's December weather, marked by an average high temperature of 32°F (0°C) and an average low temperature of 21.9°F (-5.6°C), is the coldest in the year.

How cold is December in Otis Orchards?

During December, Otis Orchards experiences an average high-temperature of 32°F (0°C) and a low-temperature of 21.9°F (-5.6°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 82.4°F (28°C).

What is the average humidity in December in Otis Orchards?

The average relative humidity in December is 88%.

How much does it rain in Otis Orchards in December?

In Otis Orchards, Washington, in December, during 8.9 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

How much does it snow in Otis Orchards in December?

In Otis Orchards, Washington, during December, snow falls for 13.9 days and regularly aggregates up to 8.9" (226mm) of snow.

What is the month with the shortest days in Otis Orchards?

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

What is the average length of the day in December in Otis Orchards?

In December, the average day length in Otis Orchards is 8h and 29min.

What time are sunrise and sunset in December in Otis Orchards?

In December, on the first day of the month, sunrise is at 7:16 am and sunset at 3:58 pm. On the last day of the month, in Otis Orchards, Washington, sunrise is at 7:36 am and sunset at 4:06 pm PST.

What is the month with the least sunshine in Otis Orchards?

January and December, with an average of 3.8h of sunshine, are months with the least sunshine.

How long on average sun shines in December in Otis Orchards?

In Otis Orchards, the average sunshine duration in December is 3.8h.

What is the month with the lowest UV index in Otis Orchards?

The month with the lowest UV index in Otis Orchards, Washington, is December, with an average maximum UV index of 1.

What is the UV index intensity in December in Otis Orchards?

In December, the average daily maximum UV index in Otis Orchards, Washington, is 1. A UV Index value of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average high temperature
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
Otis Orchards, WA

Average temperature in December - Otis Orchards, WA
  • Average high temperature in December: 32°F

The warmest month (with the highest average high temperature) is August (83.3°F).
The month with the lowest average high temperature is December (32°F).

  • Average low temperature in December: 21.9°F

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).

[Resources]

Average pressure in December
Otis Orchards, WA

Average pressure in December - Otis Orchards, WA
  • Average pressure in December: 30.17"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

[Resources]

Average wind speed in December
Otis Orchards, WA

Average wind speed in December - Otis Orchards, WA
  • Average wind speed in December: 4.7mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).

[Resources]

Average humidity in December
Otis Orchards, WA

Average humidity in December - Otis Orchards, WA
  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (43%).

[Resources]

Average rainfall in December
Otis Orchards, WA

Average rainfall in December - Otis Orchards, WA
  • Average rainfall in December: 2.2"

The wettest month (with the highest rainfall) is January (2.28").
The driest months (with the least rainfall) are July and August (0.35").

[Resources]

Average rainfall days in December
Otis Orchards, WA

Average rainfall days in December - Otis Orchards, WA
  • Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is March (16 days).
The month with the least rainy days is July (5.1 days).

[Resources]

Average snowfall in December
Otis Orchards, WA

Average snowfall in December - Otis Orchards, WA
  • Average snowfall in December: 8.9"

The month with the highest snowfall is January (10.51").
The months with the least snowfall are June, July and August (0").

[Resources]

Average snowfall days in December
Otis Orchards, WA

Average snowfall days in December - Otis Orchards, WA
  • Average snowfall days in December: 13.9 days

The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July and August (0 days).

[Resources]

Average daylight in December /
Average sunshine in December
Otis Orchards, WA

Average daylight in December / Average sunshine in December - Otis Orchards, 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: 3h and 5min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).

[Resources]

Average sunshine days in December
Otis Orchards, WA

Average sunshine days in December - Otis Orchards, WA
  • Average sunshine days in December: 13.4 days

The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is March (10.3 days).

[Resources]

Average UV index in December
Otis Orchards, WA

Average UV index in December - Otis Orchards, WA
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

[Resources]

Average cloud cover in December
Otis Orchards, WA

Average cloud cover in December - Otis Orchards, WA
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 13).

[Resources]

Average visibility in December
Otis Orchards, WA

Average visibility in December - Otis Orchards, WA
  • Average visibility in December: 4mi

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

[Resources]

Otis Orchards, Washington, USA

Weather forecast for your location

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