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, with its average high-temperature of 36°F (2.2°C) and an average low-temperature of 27°F (-2.8°C), holds the record as the coldest month.Humidity
The months with the highest humidity in Mount Hood are February and December, with an average relative humidity of 88%.Rainfall
In December, in Mount Hood, Oregon, the rain falls for 17.9 days. Throughout December, 5.08" (129mm) of precipitation is accumulated. In Mount Hood, during the entire year, the rain falls for 159.7 days and collects up to 31.42" (798mm) of precipitation.Snowfall
Months with snowfall in Mount Hood, Oregon, are January through March, November and December. In Mount Hood, in December, snow falls for 4.1 days, with typically accumulated 3.66" (93mm) of snow. In Mount Hood, during the entire year, snow falls for 15.1 days and aggregates up to 14.33" (364mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of December, sunrise is at 7:26 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:34 pm PST.
Sunshine
The average sunshine in December is 3.9h.UV index
The average daily maximum UV index in December in Mount Hood, Oregon, is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 2 in December translates into these instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What time of the year is the coldest in Mount Hood?
How cold is December in Mount Hood?
What is the most humid month in Mount Hood?
What is the average humidity in December in Mount Hood?
How much does it rain in Mount Hood in December?
How many days does it snow in December in Mount Hood?
What is the month with the shortest days in Mount Hood?
How many hours of daylight does Mount Hood have in December?
When is the sunrise / sunset in December in Mount Hood?
How long on average sun shines in December in Mount Hood?
What is the UV index reading in December in Mount Hood?
Average temperature in December
Mount Hood, OR
- Average high temperature in December: 36°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (36°F).
- Average low temperature in December: 27°F
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (27°F).
Average pressure in December
Mount Hood, OR
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in December
Mount Hood, OR
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity in December
Mount Hood, OR
- Average humidity in December: 88%
The months with the highest relative humidity are February and December (88%).
The month with the lowest relative humidity is July (59%).
Average rainfall in December
Mount Hood, OR
- Average rainfall in December: 5.08"
The wettest month (with the highest rainfall) is January (5.67").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in December
Mount Hood, OR
- Average rainfall days in December: 17.9 days
The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (4.2 days).
Average snowfall in December
Mount Hood, OR
- Average snowfall in December: 3.66"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Mount Hood, OR
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is December (4.1 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
Mount Hood, 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: 3h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Mount Hood, OR
- Average sunshine days in December: 9.8 days
The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is March (8.4 days).
Average UV index in December
Mount Hood, 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 and November (UV index 1).
Average cloud cover in December
Mount Hood, OR
- Average cloud cover in December: 62
The months with the most cloud cover are January and February (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in December
Mount Hood, OR
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).
Mount Hood, Oregon, USA
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