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
Troutdale's coldest weather arrives in December, when temperatures average a high of 43.3°F (6.3°C) and a low of 33.3°F (0.7°C).Humidity
In Troutdale, the average relative humidity in December is 83%.Rainfall
December is the month with the most rainfall in Troutdale. Rain falls for 19 days and accumulates 5.63" (143mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Troutdale, Oregon. In December, in Troutdale, it is snowing for 0.9 days. Throughout December, 0.51" (13mm) of snow is accumulated. Throughout the year, in Troutdale, there are 6.3 snowfall days, and 4.37" (111mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of December in Troutdale, sunrise is at 7:30 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 4:36 pm PST.
Sunshine
In December, the average sunshine in Troutdale 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 hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. When the Sun is at its strongest around midday, find shade and limit exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
What part of the year is the coldest in Troutdale?
Is December cold in Troutdale?
What is the average humidity in December in Troutdale?
What is the rainiest month in Troutdale?
How many days does it rain in December in Troutdale?
How much does it snow in Troutdale in December?
What is the month with the shortest days in Troutdale?
What is the average length of the day in December in Troutdale?
When are sunrise and sunset in December in Troutdale?
How long on average sun shines in December in Troutdale?
What is the month with the lowest UV index in Troutdale?
What is the UV index intensity in December in Troutdale?
Average temperature in December
Troutdale, OR
- Average high temperature in December: 43.3°F
The warmest month (with the highest average high temperature) is August (79.7°F).
The month with the lowest average high temperature is December (43.3°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is August (52.7°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure in December
Troutdale, OR
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in December
Troutdale, OR
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in December
Troutdale, OR
- Average humidity in December: 83%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Troutdale, OR
- Average rainfall in December: 5.63"
The wettest month (with the highest rainfall) is December (5.63").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in December
Troutdale, OR
- Average rainfall days in December: 19 days
The month with the highest number of rainy days is March (19.6 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in December
Troutdale, OR
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Troutdale, OR
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Troutdale, 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 6min).
Average sunshine days in December
Troutdale, OR
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in December
Troutdale, 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
Troutdale, OR
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Troutdale, 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).
Troutdale, Oregon, USA
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