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, noted for its average high-temperature of 37°F (2.8°C) and an average low-temperature of 27.1°F (-2.7°C), is considered the coldest month.Humidity
The months with the highest humidity in Smithville are January and December, with an average relative humidity of 85%.Rainfall
In December, in Smithville, the rain falls for 15.5 days. Throughout December, 2.87" (73mm) of precipitation is accumulated. In Smithville, during the entire year, the rain falls for 133.5 days and collects up to 16.93" (430mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Smithville. In December, in Smithville, it is snowing for 4.4 days. Throughout December, 2.99" (76mm) of snow is accumulated. In Smithville, during the entire year, snow falls for 14.3 days and aggregates up to 11.06" (281mm) of snow.Daylight
The month with the shortest days in Smithville is December, with an average of 8h and 48min of daylight.On the first day of December in Smithville, sunrise is at 7:25 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:30 pm PST.
Sunshine
The average sunshine in December in Smithville is 5h.UV index
The months with the lowest UV index in Smithville are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In December, a regular UV index of 2 translates into these guidelines:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. 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 Smithville?
How cold is December in Smithville?
What are the most humid months in Smithville?
What is the average humidity in December in Smithville?
How much does it rain in Smithville in December?
How many days does it snow in December in Smithville?
What is the month with the shortest days in Smithville?
What is the average length of the day in December in Smithville?
When are sunrise and sunset in December in Smithville?
How many hours of sunshine does Smithville have in December?
What are the months with the lowest UV index in Smithville?
What is the UV index intensity in December in Smithville?
Average temperature in December
Smithville, WA
- Average high temperature in December: 37°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (37°F).
- Average low temperature in December: 27.1°F
The month with the highest average low temperature is August (55.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in December
Smithville, WA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in December
Smithville, WA
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.8mph).
Average humidity in December
Smithville, WA
- Average humidity in December: 85%
The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in December
Smithville, WA
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is January (2.99").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in December
Smithville, WA
- Average rainfall days in December: 15.5 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in December
Smithville, WA
- Average snowfall in December: 2.99"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Smithville, WA
- Average snowfall days in December: 4.4 days
The month with the highest number of snowfall days is December (4.4 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
Smithville, WA
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Smithville, WA
- Average sunshine days in December: 12.1 days
The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is March (10.6 days).
Average UV index in December
Smithville, WA
- 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, November and December (UV index 2).
Average cloud cover in December
Smithville, WA
- Average cloud cover in December: 49
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in December
Smithville, WA
- 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).
Smithville, Washington, USA
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