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 month of December sees the lowest average temperatures, reaching 43°F (6.1°C) at the peak and 33.4°F (0.8°C) at the low.Humidity
January, November and December, with an average relative humidity of 89%, are the most humid months in Lacey.Rainfall
December is the month with the most rainfall in Lacey. Rain falls for 18.8 days and accumulates 5.79" (147mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Lacey. In Lacey, in December, snow falls for 1.4 days, with typically accumulated 0.31" (8mm) of snow. Throughout the year, in Lacey, Washington, there are 8.7 snowfall days, and 5.31" (135mm) of snow is accumulated.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year in Lacey.On the first day of December in Lacey, sunrise is at 7:37 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:57 am and sunset at 4:32 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 3.4h of sunshine.UV index
The months with the lowest UV index in Lacey are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What is the coldest month in Lacey?
How cold does it get in Lacey in December?
What are the most humid months in Lacey?
What is the average humidity in December in Lacey?
What is the wettest month in Lacey?
How much does it rain in Lacey in December?
How much does it snow in Lacey in December?
What is the month with the shortest days in Lacey?
What is the average length of the day in December in Lacey?
When is the sunrise / sunset in December in Lacey?
What is the month with the least sunshine in Lacey?
How many hours of sunshine does Lacey have in December?
What is the month with the lowest UV index in Lacey?
How high is the UV index in December in Lacey?
Average temperature in December
Lacey, WA
- Average high temperature in December: 43°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in December: 33.4°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).
Average pressure in December
Lacey, 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 March (30.01"Hg).
Average wind speed in December
Lacey, WA
- Average wind speed in December: 4.2mph
The windiest months (with the highest average wind speed) are March and November (4.6mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).
Average humidity in December
Lacey, WA
- Average humidity in December: 89%
The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is July (71%).
Average rainfall in December
Lacey, WA
- Average rainfall in December: 5.79"
The wettest month (with the highest rainfall) is December (5.79").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in December
Lacey, WA
- Average rainfall days in December: 18.8 days
The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (5.5 days).
Average snowfall in December
Lacey, WA
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Lacey, WA
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is February (3.3 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
Lacey, WA
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in December
Lacey, WA
- Average sunshine days in December: 9.8 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in December
Lacey, 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
Lacey, WA
- Average cloud cover in December: 65
The months with the most cloud cover are January and December (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in December
Lacey, WA
- Average visibility in December: 4mi
The months with the highest visibility are June, July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (4mi).
Lacey, Washington, USA
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