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 is the coldest month of the year, registering average temperatures as high as 34.5°F (1.4°C) and as low as 23.7°F (-4.6°C).Humidity
December is the most humid month in Summer Lake, with an average relative humidity of 82%.Rainfall
In Summer Lake, in December, it is raining for 6.6 days, with typically 2.01" (51mm) of accumulated precipitation. In Summer Lake, during the entire year, the rain falls for 91.4 days and collects up to 15.67" (398mm) of precipitation.Snowfall
Months with snowfall in Summer Lake are January through June, September through December. In Summer Lake, in December, snow falls for 16.8 days, with typically accumulated 12.8" (325mm) of snow. Throughout the year, there are 95 snowfall days, and 73.15" (1858mm) of snow is accumulated.Daylight
December has the shortest days of the year in Summer Lake, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:14 am and sunset at 4:29 pm. On the last day of December, in Summer Lake, sunrise is at 7:33 am and sunset at 4:39 pm PST.
Sunshine
The months with the least sunshine in Summer Lake are January and December, with an average of 5.6h of sunshine.UV index
The months with the lowest UV index in Summer Lake are January through March, 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 exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 2 during December translates into these guidelines:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What are the coldest months in Summer Lake?
How cold is December in Summer Lake?
What is the most humid month in Summer Lake?
What is the average humidity in December in Summer Lake?
How many days does it rain in December in Summer Lake?
How many days does it snow in December in Summer Lake?
What is the month with the shortest days in Summer Lake?
How many hours of daylight does Summer Lake have in December?
When are sunrise and sunset in December in Summer Lake?
What are the months with the least sunshine in Summer Lake?
How long on average sun shines in December in Summer Lake?
What is the month with the lowest UV index in Summer Lake?
What is the UV index intensity in December in Summer Lake?
Average temperature in December
Summer Lake, OR
- Average high temperature in December: 34.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (34.5°F).
- Average low temperature in December: 23.7°F
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (23.7°F).
Average pressure in December
Summer Lake, OR
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in December
Summer Lake, OR
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Summer Lake, OR
- Average humidity in December: 82%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is July (45%).
Average rainfall in December
Summer Lake, OR
- Average rainfall in December: 2.01"
The wettest month (with the highest rainfall) is February (2.13").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in December
Summer Lake, OR
- Average rainfall days in December: 6.6 days
The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is July (3.3 days).
Average snowfall in December
Summer Lake, OR
- Average snowfall in December: 12.8"
The month with the highest snowfall is February (16.06").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Summer Lake, OR
- Average snowfall days in December: 16.8 days
The month with the highest number of snowfall days is December (16.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Summer Lake, OR
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in December
Summer Lake, OR
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is July (25.1 days).
The month with the least sunshine days is March (11.1 days).
Average UV index in December
Summer Lake, 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, March, November and December (UV index 2).
Average cloud cover in December
Summer Lake, OR
- Average cloud cover in December: 45
The months with the most cloud cover are February and December (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in December
Summer Lake, OR
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Summer Lake, Oregon, USA
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