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
The coldest time of the year is December, with temperatures averaging a high of 41.9°F (5.5°C) and a low of 32.5°F (0.3°C).Humidity
January, February and December, with an average relative humidity of 86%, are the most humid months.Rainfall
In Lea Hill, during December, the rain falls for 16 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 162.5 rainfall days, and 17.87" (454mm) of precipitation is accumulated.Snowfall
Months with snowfall in Lea Hill are January through April, November and December. In Lea Hill, Washington, in December, during 1.3 snowfall days, 0.28" (7mm) of snow is typically accumulated. In Lea Hill, during the entire year, snow falls for 8.4 days and aggregates up to 2.24" (57mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of December, sunrise is at 7:35 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 4:28 pm PST.
Sunshine
January and December, with an average of 4.3h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What is the coldest month in Lea Hill?
How cold is it in Lea Hill in December?
What are the most humid months in Lea Hill?
What is the average humidity in December in Lea Hill?
How much does it rain in Lea Hill in December?
How many days does it snow in December in Lea Hill?
What is the month with the shortest days in Lea Hill?
What is the average length of the day in December in Lea Hill?
When are sunrise and sunset in December in Lea Hill?
What are the months with the least sunshine in Lea Hill?
How long on average sun shines in December in Lea Hill?
When is the lowest UV index in Lea Hill?
What is the UV index intensity in December in Lea Hill?
Average temperature in December
Lea Hill, WA
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in December: 32.5°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 (32.5°F).
Average pressure in December
Lea Hill, WA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in December
Lea Hill, WA
- Average wind speed in December: 4.5mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in December
Lea Hill, WA
- Average humidity in December: 86%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is July (69%).
Average rainfall in December
Lea Hill, WA
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is January (2.6").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in December
Lea Hill, WA
- Average rainfall days in December: 16 days
The month with the highest number of rainy days is November (17.5 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in December
Lea Hill, WA
- Average snowfall in December: 0.28"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Lea Hill, WA
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is February (2.7 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
Lea Hill, WA
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 4h and 18min).
Average sunshine days in December
Lea Hill, WA
- Average sunshine days in December: 12.7 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Lea Hill, WA
- Average UV index in December: 2
The month with the highest UV index is 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
Lea Hill, WA
- Average cloud cover in December: 56
The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Lea Hill, WA
- Average visibility in December: 4mi
The months with the highest visibility are July and August (6mi).
The month with the lowest visibility is December (4mi).
Lea Hill, Washington, USA
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