January weather forecast
South Hill, WA

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Weather in January

January, the same as December, in South Hill, Washington, is another chilly winter month, with temperature in the range of an average low of 33.8°F (1°C) and an average high of 44.4°F (6.9°C).

Temperature

At the start of January, South Hill's average high-temperature reaches a still chilly 44.4°F (6.9°C), subtly different from the preceding month. The average low-temperature, in January, is a wintry 33.8°F (1°C).

Humidity

January is the most humid month, with an average relative humidity of 87%.

Rainfall

In South Hill, during January, the rain falls for 18.6 days and regularly aggregates up to 4.8" (122mm) of precipitation. Throughout the year, there are 183.4 rainfall days, and 32.48" (825mm) of precipitation is accumulated.

Snowfall

Months with snowfall in South Hill, Washington, are January through March, November and December. In January, in South Hill, it is snowing for 1.8 days. Throughout January, 0.98" (25mm) of snow is accumulated. In South Hill, during the entire year, snow falls for 7.4 days and aggregates up to 3.78" (96mm) of snow.

Daylight

In January, the average length of the day in South Hill is 9h and 1min.
On the first day of January, sunrise is at 7:55 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:09 pm PST.

Sunshine

In January, the average sunshine in South Hill is 4.3h.

UV index

The months with the lowest UV index in South Hill are January, February, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In January, the maximum UV index of 2 suggests these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Enhance your sun protection with tightly woven, yet airy clothing. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold does it get in South Hill in January?

The high-temperature, in January, in South Hill, records 44.4°F (6.9°C), while the low-temperature is 33.8°F (1°C).

What is the most humid month in South Hill?

January is the most humid month in South Hill, with an average relative humidity of 87%.

What is the average humidity in January in South Hill?

The average relative humidity in January is 87%.

How many days does it rain in January in South Hill?

In South Hill, in January, during 18.6 rainfall days, 4.8" (122mm) of precipitation is typically accumulated.

How much does it snow in South Hill in January?

In January, it is snowing for 1.8 days. Throughout January, 0.98" (25mm) of snow is accumulated.

What is the average length of the day in January in South Hill?

In South Hill, the average day length in January is 9h and 1min.

When is the sunrise / sunset in January in South Hill?

In January, on the first day of the month, sunrise is at 7:55 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:09 pm PST.

How long on average sun shines in January in South Hill?

In January, the average sunshine duration in South Hill is 4.3h.

When is the lowest UV index in South Hill?

The months with the lowest UV index in South Hill are January, February, October through December, with an average maximum UV index of 2.

What is the UV index reading in January in South Hill?

The average daily maximum UV index in January in South Hill, Washington, is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
South Hill, WA

Average temperature in January - South Hill, WA
  • Average high temperature in January: 44.4°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 January: 33.8°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).

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Average pressure in January
South Hill, WA

Average pressure in January - South Hill, WA
  • Average pressure in January: 30.1"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

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Average wind speed in January
South Hill, WA

Average wind speed in January - South Hill, WA
  • Average wind speed in January: 4.8mph

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).

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Average humidity in January
South Hill, WA

Average humidity in January - South Hill, WA
  • Average humidity in January: 87%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in January
South Hill, WA

Average rainfall in January - South Hill, WA
  • Average rainfall in January: 4.8"

The wettest month (with the highest rainfall) is December (4.92").
The driest month (with the least rainfall) is July (0.43").

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Average rainfall days in January
South Hill, WA

Average rainfall days in January - South Hill, WA
  • Average rainfall days in January: 18.6 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).

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Average snowfall in January
South Hill, WA

Average snowfall in January - South Hill, WA
  • Average snowfall in January: 0.98"

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").

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Average snowfall days in January
South Hill, WA

Average snowfall days in January - South Hill, WA
  • Average snowfall days in January: 1.8 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).

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Average daylight in January /
Average sunshine in January
South Hill, WA

Average daylight in January / Average sunshine in January - South Hill, WA
  • Average daylight in January: 9h and 0min

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 January: 4h and 2min

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).

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Average sunshine days in January
South Hill, WA

Average sunshine days in January - South Hill, WA
  • Average sunshine days in January: 10.7 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).

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Average UV index in January
South Hill, WA

Average UV index in January - South Hill, WA
  • Average UV index in January: 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).

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Average cloud cover in January
South Hill, WA

Average cloud cover in January - South Hill, WA
  • Average cloud cover in January: 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).

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Average visibility in January
South Hill, WA

Average visibility in January - South Hill, WA
  • Average visibility in January: 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).

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South Hill, Washington, USA

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