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 Hill's December weather, with an average high temperature of 42.8°F (6°C) and an average low temperature of 32.7°F (0.4°C), tends to be the coldest of the year.Humidity
In South Hill, the average relative humidity in December is 86%.Rainfall
The month with the most rainfall in South Hill is December, when the rain falls for 19.2 days and typically aggregates up to 4.92" (125mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In South Hill, in December, during 1 snowfall days, 0.43" (11mm) of snow is typically accumulated. Throughout the year, there are 7.4 snowfall days, and 3.78" (96mm) of snow is accumulated.Daylight
December has the shortest days of the year in South Hill, with an average of 8h and 36min of daylight.On the first day of December, sunrise is at 7:35 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 4:29 pm PST.
Sunshine
With an average of 4.2h of sunshine, December has the least sunshine of the year in South Hill.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in South Hill?
How cold is it in South Hill in December?
What is the average humidity in December in South Hill?
What is the wettest month in South Hill?
How much does it rain in South Hill in December?
How many days does it snow in December in South Hill?
What is the month with the shortest days in South Hill?
What is the average length of the day in December in South Hill?
When is the sunrise / sunset in December in South Hill?
What is the month with the least sunshine in South Hill?
How long on average sun shines in December in South Hill?
What is the month with the lowest UV index in South Hill?
What is the UV index intensity in December in South Hill?
Average temperature in December
South Hill, WA
- Average high temperature in December: 42.8°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 (42.8°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure in December
South 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
South Hill, WA
- Average wind speed in December: 4.5mph
The windiest month (with the highest average wind speed) is March (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in December
South Hill, WA
- Average humidity in December: 86%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is July (69%).
Average rainfall in December
South Hill, WA
- Average rainfall in December: 4.92"
The wettest month (with the highest rainfall) is December (4.92").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in December
South Hill, WA
- Average rainfall days in December: 19.2 days
The month with the highest number of rainy days is March (21 days).
The month with the least rainy days is August (6.2 days).
Average snowfall in December
South Hill, WA
- Average snowfall in December: 0.43"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
South Hill, WA
- Average snowfall days in December: 1 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
South Hill, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
South Hill, WA
- Average sunshine days in December: 10 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in December
South 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, October, November and December (UV index 2).
Average cloud cover in December
South 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
South Hill, WA
- Average visibility in December: 5mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
South Hill, Washington, USA
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