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
South Prairie's coldest weather arrives in December, when temperatures average a high of 39.9°F (4.4°C) and a low of 29.8°F (-1.2°C).Humidity
The average relative humidity in December in South Prairie is 86%.Rainfall
The wettest months in South Prairie are January and December, with an average 6.1" (155mm) of rainfall.Snowfall
Months with snowfall in South Prairie are January through April, November and December. In December, in South Prairie, Washington, it is snowing for 4.5 days. Throughout December, 2.52" (64mm) of snow is accumulated. In South Prairie, during the entire year, snow falls for 22.3 days and aggregates up to 15.47" (393mm) of snow.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year.On the first day of December in South Prairie, sunrise is at 7:34 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 4:28 pm PST.
Sunshine
December has the least sunshine of the year in South Prairie, with an average of 4h of sunshine.UV index
In South Prairie, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What time of the year is the coldest in South Prairie?
Is it cold in South Prairie during December?
What is the average humidity in December in South Prairie?
What is the wettest month in South Prairie?
How much does it rain in South Prairie in December?
How many days does it snow in December in South Prairie?
What is the month with the shortest days in South Prairie?
What is the average length of the day in December in South Prairie?
What time are sunrise and sunset in December in South Prairie?
What is the month with the least sunshine in South Prairie?
How long on average sun shines in December in South Prairie?
How high is the UV index in December in South Prairie?
Average temperature in December
South Prairie, WA
- Average high temperature in December: 39.9°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (39.9°F).
- Average low temperature in December: 29.8°F
The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (29.8°F).
Average pressure in December
South Prairie, WA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in December
South Prairie, WA
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in December
South Prairie, WA
- Average humidity in December: 86%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (70%).
Average rainfall in December
South Prairie, WA
- Average rainfall in December: 6.1"
The wettest months (with the highest rainfall) are January and December (6.1").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in December
South Prairie, WA
- Average rainfall days in December: 19 days
The month with the highest number of rainy days is March (21.2 days).
The month with the least rainy days is August (7.6 days).
Average snowfall in December
South Prairie, WA
- Average snowfall in December: 2.52"
The month with the highest snowfall is February (5.2").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
South Prairie, WA
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
South Prairie, WA
- Average daylight in December: 8h and 4min
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 36min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in December
South Prairie, WA
- Average sunshine days in December: 9.7 days
The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is March (7.8 days).
Average UV index in December
South Prairie, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in December
South Prairie, WA
- Average cloud cover in December: 58
The month with the most cloud cover is March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
South Prairie, WA
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, November and December (4mi).
South Prairie, Washington, USA
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