Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December brings the lowest temperatures, with an average high of 45.7°F (7.6°C) and an average low of 34.2°F (1.2°C).Humidity
The months with the highest humidity in Monroe are January through March and December, with an average relative humidity of 87%.Rainfall
The month with the most rainfall in Monroe is December, when the rain falls for 18.2 days and typically aggregates up to 4.37" (111mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Monroe, in December, during 0.3 snowfall days, 0.2" (5mm) of snow is typically accumulated. In Monroe, during the entire year, snow falls for 4.1 days and aggregates up to 2.87" (73mm) of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:29 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:48 am and sunset at 4:44 pm PST.
Sunshine
In December, the average sunshine is 4.2h.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 value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: An average UV index of 2 in December transforms into this advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What part of the year is the coldest in Monroe?
What is the average December temperature in Monroe?
What are the most humid months in Monroe?
What is the average humidity in December in Monroe?
What is the wettest month in Monroe?
How many days does it rain in December in Monroe?
How much does it snow in Monroe in December?
What is the month with the shortest days in Monroe?
How many hours of daylight does Monroe have in December?
When are sunrise and sunset in December in Monroe?
How many hours of sunshine does Monroe have in December?
What are the months with the lowest UV index in Monroe?
How high is the UV index in December in Monroe?
Average temperature in December
Monroe, OR
- Average high temperature in December: 45.7°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 (45.7°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is August (51.1°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in December
Monroe, 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).
Average wind speed in December
Monroe, OR
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is March (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).
Average humidity in December
Monroe, OR
- Average humidity in December: 87%
The months with the highest relative humidity are January, February, March and December (87%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Monroe, OR
- Average rainfall in December: 4.37"
The wettest month (with the highest rainfall) is December (4.37").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in December
Monroe, OR
- Average rainfall days in December: 18.2 days
The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (3.6 days).
Average snowfall in December
Monroe, OR
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Monroe, OR
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Monroe, OR
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in December
Monroe, OR
- Average sunshine days in December: 11.6 days
The month with the most sunshine days is July (26.2 days).
The months with the least sunshine days are February and March (9.4 days).
Average UV index in December
Monroe, 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).
Average cloud cover in December
Monroe, OR
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in December
Monroe, OR
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Monroe, Oregon, USA
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