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
Longview Heights's coldest weather arrives in December, when temperatures average a high of 42.3°F (5.7°C) and a low of 32.7°F (0.4°C).Humidity
January, February, November and December, with an average relative humidity of 88%, are the most humid months in Longview Heights, Washington.Rainfall
In Longview Heights, in December, it is raining for 18.5 days, with typically 3.58" (91mm) of accumulated precipitation. In Longview Heights, during the entire year, the rain falls for 175.5 days and collects up to 25.83" (656mm) of precipitation.Snowfall
Months with snowfall in Longview Heights, Washington, are January through March, November and December. In Longview Heights, in December, snow falls for 0.9 days, with typically accumulated 0.24" (6mm) of snow. Throughout the year, there are 6.7 snowfall days, and 3.54" (90mm) of snow is accumulated.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year in Longview Heights.On the first day of the month, sunrise is at 7:34 am and sunset at 4:27 pm. On the last day of December, sunrise is at 7:54 am and sunset at 4:36 pm PST.
Sunshine
January, February and December, with an average of 3.5h of sunshine, are months with the least sunshine in Longview Heights.UV index
In Longview Heights, Washington, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Longview Heights?
How cold does it get in Longview Heights in December?
What is the most humid month in Longview Heights?
What is the average humidity in December in Longview Heights?
How much does it rain in Longview Heights in December?
How many days does it snow in December in Longview Heights?
What is the month with the shortest days in Longview Heights?
How many hours of daylight does Longview Heights have in December?
What time are sunrise and sunset in December in Longview Heights?
What are the months with the least sunshine in Longview Heights?
How many hours of sunshine does Longview Heights have in December?
What is the UV index reading in December in Longview Heights?
Average temperature in December
Longview Heights, WA
- Average high temperature in December: 42.3°F
The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure in December
Longview Heights, WA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in December
Longview Heights, WA
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in December
Longview Heights, WA
- Average humidity in December: 88%
The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is July (72%).
Average rainfall in December
Longview Heights, WA
- Average rainfall in December: 3.58"
The wettest month (with the highest rainfall) is January (3.9").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in December
Longview Heights, WA
- Average rainfall days in December: 18.5 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is July (6.1 days).
Average snowfall in December
Longview Heights, WA
- Average snowfall in December: 0.24"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Longview Heights, WA
- 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
Longview Heights, WA
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 30min).
Average sunshine days in December
Longview Heights, WA
- Average sunshine days in December: 10.2 days
The month with the most sunshine days is July (22 days).
The month with the least sunshine days is March (8.9 days).
Average UV index in December
Longview Heights, WA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in December
Longview Heights, WA
- Average cloud cover in December: 64
The months with the most cloud cover are February and March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Longview Heights, WA
- Average visibility in December: 4mi
The month with the highest visibility is August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (4mi).
Longview Heights, Washington, USA
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