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, marked by an average high-temperature of 41°F (5°C) and a low-temperature of 27.3°F (-2.6°C), is the coldest month.Humidity
In January, the average relative humidity in Potomac Heights is 73%.Rainfall
The month with the least rainfall is January, when the rain falls for 10.1 days and typically collects 2.01" (51mm) of precipitation.Snowfall
Months with snowfall are January through April and December. January is the month with the most snowfall in Potomac Heights. Snow falls for 4.8 days and accumulates 2.44" (62mm) of snow.Daylight
In Potomac Heights, the average length of the day in January is 9h and 50min.On the first day of January, sunrise is at 7:26 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:28 pm EST.
Sunshine
In January, the average sunshine in Potomac Heights is 5.3h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 2 during January translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Opt for tightly woven and loose clothing to enhance protection from the Sun. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
What is the coldest month in Potomac Heights?
How cold is January in Potomac Heights?
What is the average humidity in January in Potomac Heights?
What is the driest month in Potomac Heights?
How many days does it rain in January in Potomac Heights?
What is the snowiest month in Potomac Heights?
How much does it snow in Potomac Heights in January?
What is the average length of the day in January in Potomac Heights?
When is the sunrise / sunset in January in Potomac Heights?
How long on average sun shines in January in Potomac Heights?
What are the months with the lowest UV index in Potomac Heights?
What is the UV index intensity in January in Potomac Heights?
Average temperature in January
Potomac Heights, MD
- Average high temperature in January: 41°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41°F).
- Average low temperature in January: 27.3°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in January
Potomac Heights, MD
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in January
Potomac Heights, MD
- Average wind speed in January: 6.8mph
The windiest months (with the highest average wind speed) are March and April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in January
Potomac Heights, MD
- Average humidity in January: 73%
The months with the highest relative humidity are May, October and December (77%).
The months with the lowest relative humidity are April and July (72%).
Average rainfall in January
Potomac Heights, MD
- Average rainfall in January: 2.01"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days in January
Potomac Heights, MD
- Average rainfall days in January: 10.1 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in January
Potomac Heights, MD
- Average snowfall in January: 2.44"
The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in January
Potomac Heights, MD
- Average snowfall days in January: 4.8 days
The month with the highest number of snowfall days is January (4.8 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
Potomac Heights, MD
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
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 months with the least sunshine are February and December (Average sunshine: 5h and 12min).
Average sunshine days in January
Potomac Heights, MD
- Average sunshine days in January: 16.9 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in January
Potomac 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, November and December (UV index 2).
Average cloud cover in January
Potomac Heights, MD
- Average cloud cover in January: 43
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in January
Potomac Heights, MD
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Potomac Heights, Maryland, USA
Weather forecast for your location
2. Allow the app to use your location
