December weather forecast
McMinnville, OR

Share

Weather in December

December wraps up the year with a return of freezing temperatures in McMinnville. The mercury plunges deep into the chills, with temperatures lying between 34.3°F (1.3°C) and 44.1°F (6.7°C). A slight surge in rainfall combined with a meager snowfall reinstates the strong winter feel. The wind starts getting piercingly cold, making the year-end holidays a time of warming indoor festivities.

Temperature

McMinnville's December weather, marked by an average high temperature of 44.1°F (6.7°C) and an average low temperature of 34.3°F (1.3°C), is the coldest in the year.

Humidity

February and December, with an average relative humidity of 87%, are the most humid months.

Rainfall

The month with the most rainfall in McMinnville is December, when the rain falls for 19.3 days and typically aggregates up to 4.49" (114mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In McMinnville, during December, snow falls for 0.5 days and regularly aggregates up to 0.28" (7mm) of snow. Throughout the year, there are 5.3 snowfall days, and 3.19" (81mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 48min of daylight.
On the first day of the month, sunrise is at 7:32 am and sunset at 4:31 pm. On the last day of December, in McMinnville, sunrise is at 7:51 am and sunset at 4:40 pm PST.

Sunshine

The average sunshine in December is 4h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 2 suggests this advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
[Resources]

Frequently asked questions

What is the coldest time of year in McMinnville?

Temperature records mark December as the coldest month, with highs averaging 44.1°F (6.7°C) and lows at 34.3°F (1.3°C).

How cold is December in McMinnville?

The average high-temperature and low-temperature in McMinnville, Oregon, during December are 44.1°F (6.7°C) and 34.3°F (1.3°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in August is appraised at 84.2°F (29°C).

What are the most humid months in McMinnville?

The months with the highest humidity in McMinnville are February and December, with an average relative humidity of 87%.

What is the average humidity in December in McMinnville?

The average relative humidity in December in McMinnville, Oregon, is 87%.

What is the wettest month in McMinnville?

December is the month with the most rainfall in McMinnville, Oregon. Rain falls for 19.3 days and accumulates 4.49" (114mm) of precipitation.

How much does it rain in McMinnville in December?

In December, in McMinnville, Oregon, the rain falls for 19.3 days. Throughout December, 4.49" (114mm) of precipitation is accumulated.

How many days does it snow in December in McMinnville?

In McMinnville, during December, snow falls for 0.5 days and regularly aggregates up to 0.28" (7mm) of snow.

What is the month with the shortest days in McMinnville?

With an average of 8h and 48min of daylight, December has the shortest days of the year in McMinnville.

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

In December, the average day length in McMinnville, Oregon, is 8h and 49min.

When is the sunrise / sunset in December in McMinnville?

On the first day of December, sunrise is at 7:32 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 4:40 pm PST.

How many hours of sunshine does McMinnville have in December?

In December, the average sunshine duration in McMinnville, Oregon, is 4h.

When is the lowest UV index in McMinnville?

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

What is the UV index intensity in December in McMinnville?

In McMinnville, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from 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
McMinnville, OR

Average temperature in December - McMinnville, OR
  • Average high temperature in December: 44.1°F

The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (44.1°F).

  • Average low temperature in December: 34.3°F

The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).

[Resources]

Average pressure in December
McMinnville, OR

Average pressure in December - McMinnville, OR
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

[Resources]

Average wind speed in December
McMinnville, OR

Average wind speed in December - McMinnville, OR
  • Average wind speed in December: 4.8mph

The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (4mph).

[Resources]

Average humidity in December
McMinnville, OR

Average humidity in December - McMinnville, OR
  • Average humidity in December: 87%

The months with the highest relative humidity are February and December (87%).
The month with the lowest relative humidity is August (67%).

[Resources]

Average rainfall in December
McMinnville, OR

Average rainfall in December - McMinnville, OR
  • Average rainfall in December: 4.49"

The wettest month (with the highest rainfall) is December (4.49").
The driest months (with the least rainfall) are July and August (0.35").

[Resources]

Average rainfall days in December
McMinnville, OR

Average rainfall days in December - McMinnville, OR
  • Average rainfall days in December: 19.3 days

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (4.6 days).

[Resources]

Average snowfall in December
McMinnville, OR

Average snowfall in December - McMinnville, OR
  • Average snowfall in December: 0.28"

The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in December
McMinnville, OR

Average snowfall days in December - McMinnville, OR
  • Average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

[Resources]

Average daylight in December /
Average sunshine in December
McMinnville, OR

Average daylight in December / Average sunshine in December - McMinnville, OR
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

[Resources]

Average sunshine days in December
McMinnville, OR

Average sunshine days in December - McMinnville, OR
  • Average sunshine days in December: 9.7 days

The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is February (8.4 days).

[Resources]

Average UV index in December
McMinnville, OR

Average UV index in December - McMinnville, OR
  • Average UV index in December: 2

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

[Resources]

Average cloud cover in December
McMinnville, OR

Average cloud cover in December - McMinnville, OR
  • Average cloud cover in December: 59

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 23).

[Resources]

Average visibility in December
McMinnville, OR

Average visibility in December - McMinnville, OR
  • Average visibility in December: 4mi

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

[Resources]

McMinnville, Oregon, USA

Weather forecast for your location

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