December weather forecast
Saint Paul, OR

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Weather in December

The first month of the winter, December, is also a frosty month in Saint Paul, Oregon, with an average temperature fluctuating between 34.2°F (1.2°C) and 44.1°F (6.7°C).

Temperature

The coldest period tends to be December, when average temperatures fluctuate between a high of 44.1°F (6.7°C) and a low of 34.2°F (1.2°C).

Humidity

The months with the highest humidity in Saint Paul are February and December, with an average relative humidity of 86%.

Rainfall

December is the month with the most rainfall. Rain falls for 18.6 days and accumulates 4.13" (105mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Saint Paul, in December, during 0.6 snowfall days, 0.31" (8mm) of snow is typically accumulated. In Saint Paul, during the entire year, snow falls for 5.8 days and aggregates up to 3.43" (87mm) of snow.

Daylight

The month with the shortest days in Saint Paul is December, with an average of 8h and 48min of daylight.
On the first day of December in Saint Paul, sunrise is at 7:31 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 4:39 pm PST.

Sunshine

In Saint Paul, the average sunshine in December is 4.1h.

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 unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

What month is the coldest in Saint Paul?

December is the coldest month, with the temperature often reaching an average high of 44.1°F (6.7°C) and an average low of 34.2°F (1.2°C).

How cold is December in Saint Paul?

During December, Saint Paul experiences an average high-temperature of 44.1°F (6.7°C) and a low-temperature of 34.2°F (1.2°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in August is calculated to be 86°F (30°C).

What is the most humid month in Saint Paul?

The months with the highest humidity in Saint Paul are February and December, with an average relative humidity of 86%.

What is the average humidity in December in Saint Paul?

In December, the average relative humidity in Saint Paul is 86%.

What is the wettest month in Saint Paul?

December is the month with the most rainfall. Rain falls for 18.6 days and accumulates 4.13" (105mm) of precipitation.

How many days does it rain in December in Saint Paul?

In December, in Saint Paul, Oregon, the rain falls for 18.6 days. Throughout December, 4.13" (105mm) of precipitation is accumulated.

How much does it snow in Saint Paul in December?

In Saint Paul, Oregon, in December, snow falls for 0.6 days, with typically accumulated 0.31" (8mm) of snow.

What is the month with the shortest days in Saint Paul?

The month with the shortest days in Saint Paul is December, with an average of 8h and 48min of daylight.

What is the average length of the day in December in Saint Paul?

The average day length in December in Saint Paul is 8h and 49min.

What time are sunrise and sunset in December in Saint Paul?

In December, on the first day of the month, sunrise is at 7:31 am and sunset at 4:31 pm. On the last day of the month, in Saint Paul, Oregon, sunrise is at 7:50 am and sunset at 4:39 pm PST.

How many hours of sunshine does Saint Paul have in December?

The average sunshine duration in December is 4.1h.

When is the lowest UV index in Saint Paul?

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

What is the UV index intensity in December in Saint Paul?

In Saint Paul, Oregon, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to 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
Saint Paul, OR

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

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (44.1°F).

  • Average low temperature in December: 34.2°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

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Average pressure in December
Saint Paul, OR

Average pressure in December - Saint Paul, OR
  • Average pressure in December: 30.1"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).

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Average wind speed in December
Saint Paul, OR

Average wind speed in December - Saint Paul, OR
  • Average wind speed in December: 5mph

The windiest month (with the highest average wind speed) is March (5.3mph).
The calmest months (with the lowest average wind speed) are June and August (4.2mph).

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Average humidity in December
Saint Paul, OR

Average humidity in December - Saint Paul, OR
  • Average humidity in December: 86%

The months with the highest relative humidity are February and December (86%).
The month with the lowest relative humidity is August (64%).

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Average rainfall in December
Saint Paul, OR

Average rainfall in December - Saint Paul, OR
  • Average rainfall in December: 4.13"

The wettest month (with the highest rainfall) is December (4.13").
The driest month (with the least rainfall) is August (0.31").

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Average rainfall days in December
Saint Paul, OR

Average rainfall days in December - Saint Paul, OR
  • Average rainfall days in December: 18.6 days

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (4.4 days).

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Average snowfall in December
Saint Paul, OR

Average snowfall in December - Saint Paul, OR
  • Average snowfall in December: 0.31"

The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Saint Paul, OR

Average snowfall days in December - Saint Paul, OR
  • Average snowfall days in December: 0.6 days

The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Saint Paul, OR

Average daylight in December / Average sunshine in December - Saint Paul, 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 1min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

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Average sunshine days in December
Saint Paul, OR

Average sunshine days in December - Saint Paul, OR
  • Average sunshine days in December: 10.5 days

The month with the most sunshine days is July (25 days).
The month with the least sunshine days is February (8.8 days).

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Average UV index in December
Saint Paul, OR

Average UV index in December - Saint Paul, 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).

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Average cloud cover in December
Saint Paul, OR

Average cloud cover in December - Saint Paul, OR
  • Average cloud cover in December: 58

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 22).

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Average visibility in December
Saint Paul, OR

Average visibility in December - Saint Paul, OR
  • Average visibility in December: 5mi

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

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Saint Paul, Oregon, USA

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