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
Weallup Lake's December weather reaches an average high of 42.3°F (5.7°C) and an average low of 34.7°F (1.5°C), making it the coldest month.Humidity
January and December, with an average relative humidity of 85%, are the most humid months.Rainfall
In Weallup Lake, Washington, in December, during 19.3 rainfall days, 3.82" (97mm) of precipitation is typically accumulated. Throughout the year, there are 179.1 rainfall days, and 29.57" (751mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Weallup Lake. In Weallup Lake, in December, during 1.5 snowfall days, 0.51" (13mm) of snow is typically accumulated. In Weallup Lake, Washington, during the entire year, snow falls for 8.9 days and aggregates up to 6.1" (155mm) of snow.Daylight
The month with the shortest days in Weallup Lake is December, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 7:39 am and sunset at 4:17 pm. On the last day of December, sunrise is at 7:59 am and sunset at 4:25 pm PST.
Sunshine
January and December, with an average of 4.2h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index in Weallup Lake, Washington, are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
What time of the year is the coldest in Weallup Lake?
Is December cold in Weallup Lake?
What are the most humid months in Weallup Lake?
What is the average humidity in December in Weallup Lake?
How many days does it rain in December in Weallup Lake?
How much does it snow in Weallup Lake in December?
What is the month with the shortest days in Weallup Lake?
What is the average length of the day in December in Weallup Lake?
When are sunrise and sunset in December in Weallup Lake?
What are the months with the least sunshine in Weallup Lake?
How long on average sun shines in December in Weallup Lake?
What is the month with the lowest UV index in Weallup Lake?
What is the UV index reading in December in Weallup Lake?
Average temperature in December
Weallup Lake, WA
- Average high temperature in December: 42.3°F
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure in December
Weallup Lake, WA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in December
Weallup Lake, WA
- Average wind speed in December: 5.4mph
The windiest months (with the highest average wind speed) are March and November (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in December
Weallup Lake, WA
- Average humidity in December: 85%
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Weallup Lake, WA
- Average rainfall in December: 3.82"
The wettest month (with the highest rainfall) is November (4.06").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in December
Weallup Lake, WA
- Average rainfall days in December: 19.3 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in December
Weallup Lake, WA
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Weallup Lake, WA
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (3.1 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
Weallup Lake, WA
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).
Average sunshine days in December
Weallup Lake, WA
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is August (23.1 days).
The months with the least sunshine days are February and November (8.6 days).
Average UV index in December
Weallup Lake, WA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Weallup Lake, WA
- Average cloud cover in December: 57
The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in December
Weallup Lake, WA
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
Weallup Lake, Washington, USA
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