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
January brings the lowest temperatures, with an average high of 40.3°F (4.6°C) and an average low of 29.8°F (-1.2°C).Humidity
January, March, April and November, with an average relative humidity of 72%, are the least humid months.Rainfall
The month with the least rainfall in South River Heights is January, when the rain falls for 6 days and typically collects 0.47" (12mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. January is the month with the most snowfall. Snow falls for 2.3 days and accumulates 0.67" (17mm) of snow.Daylight
The average length of the day in January is 9h and 48min.On the first day of January, sunrise is at 7:24 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:25 pm EST.
Sunshine
In South River Heights, the average sunshine in January is 5.3h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in South River Heights. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 2 in January translates into this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
What time of the year is the coldest in South River Heights?
How cold does it get in South River Heights in January?
What are the least humid months in South River Heights?
What is the average humidity in January in South River Heights?
What is the driest month in South River Heights?
How much does it rain in South River Heights in January?
When does it snow the most in South River Heights?
How much does it snow in South River Heights in January?
What is the average length of the day in January in South River Heights?
What time are sunrise and sunset in January in South River Heights?
How long on average sun shines in January in South River Heights?
What is the month with the lowest UV index in South River Heights?
What is the UV index intensity in January in South River Heights?
Average temperature in January
South River Heights, MD
- Average high temperature in January: 40.3°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in January: 29.8°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).
Average pressure in January
South River Heights, MD
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
South River Heights, MD
- Average wind speed in January: 10mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in January
South River Heights, MD
- Average humidity in January: 72%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).
Average rainfall in January
South River Heights, MD
- Average rainfall in January: 0.47"
The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in January
South River Heights, MD
- Average rainfall days in January: 6 days
The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).
Average snowfall in January
South River Heights, MD
- Average snowfall in January: 0.67"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
South River Heights, MD
- Average snowfall days in January: 2.3 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
South River Heights, MD
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in January
South River Heights, MD
- Average sunshine days in January: 23 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).
Average UV index in January
South River Heights, MD
- 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, February and December (UV index 2).
Average cloud cover in January
South River Heights, MD
- Average cloud cover in January: 43
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in January
South River Heights, MD
- 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).
South River Heights, Maryland, USA
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