Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Castle Heights, Virginia, witnesses the coldest weather in January, with temperatures averaging a high of 46°F (7.8°C) and a low of 30.6°F (-0.8°C).Humidity
In Castle Heights, the average relative humidity in January is 74%.Rainfall
In Castle Heights, during January, the rain falls for 8.8 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, in Castle Heights, there are 144.4 rainfall days, and 21.3" (541mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in Castle Heights. January is the month with the most snowfall. Snow falls for 2.1 days and accumulates 1.5" (38mm) of snow.Daylight
In January, the average length of the day in Castle Heights is 9h and 59min.On the first day of the month, sunrise is at 7:25 am and sunset at 5:07 pm. On the last day of January, in Castle Heights, sunrise is at 7:15 am and sunset at 5:37 pm EST.
Sunshine
January and December, with an average of 5.5h of sunshine, are months with the least sunshine in Castle Heights, Virginia.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. 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. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Castle Heights?
What is the temperature in January in Castle Heights?
What is the average humidity in January in Castle Heights?
How much does it rain in Castle Heights in January?
When does it snow the most in Castle Heights?
How many days does it snow in January in Castle Heights?
What is the average length of the day in January in Castle Heights?
What time are sunrise and sunset in January in Castle Heights?
What is the month with the least sunshine in Castle Heights?
How many hours of sunshine does Castle Heights have in January?
When is the lowest UV index in Castle Heights?
What is the UV index intensity in January in Castle Heights?
Average temperature in January
Castle Heights, VA
- Average high temperature in January: 46°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in January: 30.6°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in January
Castle Heights, VA
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in January
Castle Heights, VA
- Average wind speed in January: 7mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Castle Heights, VA
- Average humidity in January: 74%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).
Average rainfall in January
Castle Heights, VA
- Average rainfall in January: 1.73"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in January
Castle Heights, VA
- Average rainfall days in January: 8.8 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (8.3 days).
Average snowfall in January
Castle Heights, VA
- Average snowfall in January: 1.5"
The month with the highest snowfall is January (1.5").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Castle Heights, VA
- Average snowfall days in January: 2.1 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Castle Heights, VA
- 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 42min).
- Average sunshine in January: 5h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in January
Castle Heights, VA
- Average sunshine days in January: 19.3 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (12 days).
Average UV index in January
Castle Heights, VA
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in January
Castle Heights, VA
- 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 July (Cloud cover 31).
Average visibility in January
Castle Heights, VA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Castle Heights, Virginia, USA
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