January weather forecast
Castalia, NC

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Weather in January

January, the same as December, in Castalia, North Carolina, is another chilly winter month, with temperature in the range of an average high of 47.7°F (8.7°C) and an average low of 32.5°F (0.3°C).

Temperature

Castalia's temperature records reveal January as the coldest month, marked by average highs of 47.7°F (8.7°C) and lows of 32.5°F (0.3°C).

Humidity

The months with the lowest humidity in Castalia are January, March, April and November, with an average relative humidity of 74%.

Rainfall

In January, in Castalia, North Carolina, the rain falls for 9.6 days. Throughout January, 2.32" (59mm) of precipitation is accumulated. Throughout the year, in Castalia, there are 160.1 rainfall days, and 33.11" (841mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. January is the month with the most snowfall. Snow falls for 1.9 days and accumulates 1.54" (39mm) of snow.

Daylight

In January, the average length of the day is 10h and 2min.
On the first day of the month, sunrise is at 7:22 am and sunset at 5:08 pm. On the last day of January, sunrise is at 7:13 am and sunset at 5:37 pm EST.

Sunshine

In Castalia, the average sunshine in January is 5.5h.

UV index

The month with the lowest UV index in Castalia is January, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, the maximum UV index of 2 translates into these guidelines:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

What are the coldest months in Castalia?

January tends to be the coldest month in Castalia, with temperatures averaging a daily high of 47.7°F (8.7°C) and a low of 32.5°F (0.3°C).

What is the temperature in January in Castalia?

The high-temperature in Castalia during January is 47.7°F (8.7°C) and the low-temperature is 32.5°F (0.3°C).

What are the least humid months in Castalia?

The months with the lowest humidity in Castalia are January, March, April and November, with an average relative humidity of 74%.

What is the average humidity in January in Castalia?

In Castalia, North Carolina, the average relative humidity in January is 74%.

How many days does it rain in January in Castalia?

In Castalia, North Carolina, during January, the rain falls for 9.6 days and regularly aggregates up to 2.32" (59mm) of precipitation.

What is the snowiest month in Castalia?

January is the month with the most snowfall in Castalia, North Carolina. Snow falls for 1.9 days and accumulates 1.54" (39mm) of snow.

How much does it snow in Castalia in January?

In Castalia, in January, during 1.9 snowfall days, 1.54" (39mm) of snow is typically accumulated.

What is the average length of the day in January in Castalia?

The average day length in January in Castalia, North Carolina, is 10h and 2min.

When are sunrise and sunset in January in Castalia?

In January, on the first day of the month, sunrise is at 7:22 am and sunset at 5:08 pm. On the last day of the month, in Castalia, North Carolina, sunrise is at 7:13 am and sunset at 5:37 pm EST.

How long on average sun shines in January in Castalia?

In January, the average sunshine duration in Castalia, North Carolina, is 5.5h.

What is the month with the lowest UV index in Castalia?

With an average maximum UV index of 2, January is the month with the lowest UV index in Castalia, North Carolina.

What is the UV index intensity in January in Castalia?

The average daily maximum UV index in January in Castalia, North Carolina, is 2. A UV Index reading of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
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
Castalia, NC

Average temperature in January - Castalia, NC
  • Average high temperature in January: 47.7°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (47.7°F).

  • Average low temperature in January: 32.5°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

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Average pressure in January
Castalia, NC

Average pressure in January - Castalia, NC
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in January
Castalia, NC

Average wind speed in January - Castalia, NC
  • Average wind speed in January: 7.8mph

The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in January
Castalia, NC

Average humidity in January - Castalia, NC
  • Average humidity in January: 74%

The month with the highest relative humidity is September (78%).
The months with the lowest relative humidity are January, March, April and November (74%).

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Average rainfall in January
Castalia, NC

Average rainfall in January - Castalia, NC
  • Average rainfall in January: 2.32"

The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is October (2.13").

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Average rainfall days in January
Castalia, NC

Average rainfall days in January - Castalia, NC
  • Average rainfall days in January: 9.6 days

The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is November (8.6 days).

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Average snowfall in January
Castalia, NC

Average snowfall in January - Castalia, NC
  • Average snowfall in January: 1.54"

The month with the highest snowfall is January (1.54").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in January
Castalia, NC

Average snowfall days in January - Castalia, NC
  • Average snowfall days in January: 1.9 days

The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Castalia, NC

Average daylight in January / Average sunshine in January - Castalia, NC
  • Average daylight in January: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in January: 5h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in January
Castalia, NC

Average sunshine days in January - Castalia, NC
  • Average sunshine days in January: 19.2 days

The month with the most sunshine days is October (20 days).
The month with the least sunshine days is July (9.8 days).

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Average UV index in January
Castalia, NC

Average UV index in January - Castalia, NC
  • Average UV index in January: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in January
Castalia, NC

Average cloud cover in January - Castalia, NC
  • Average cloud cover in January: 40

The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 32).

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Average visibility in January
Castalia, NC

Average visibility in January - Castalia, NC
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Castalia, North Carolina, USA

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