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
Brightwood's coldest month, January, registers temperatures that range from a high of 39.6°F (4.2°C) to a low of 28.4°F (-2°C).Humidity
January, March, April and November, with an average relative humidity of 72%, are the least humid months.Rainfall
In Brightwood, in January, it is raining for 9.9 days, with typically 2.01" (51mm) of accumulated precipitation. In Brightwood, during the entire year, the rain falls for 155.7 days and collects up to 31.22" (793mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. The month with the most snowfall is January, when snow falls for 4.4 days and typically aggregates up to 2.05" (52mm) of snow.Daylight
In January, the average length of the day is 9h and 47min.On the first day of the month, sunrise is at 7:25 am and sunset at 4:54 pm. On the last day of January, sunrise is at 7:14 am and sunset at 5:25 pm EST.
Sunshine
In Brightwood, the average sunshine in January 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 of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 2 during January translates into these guidelines:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
Is it cold during January?
What is the least humid month?
What is the average humidity in January?
How much does it rain in Brightwood in January?
When does it snow the most?
How much does it snow in January?
How many hours of daylight does Brightwood have in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Brightwood have in January?
What are the months with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Brightwood, MD
- Average high temperature in January: 39.6°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in January: 28.4°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 (28.4°F).
Average pressure in January
Brightwood, MD
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Brightwood, MD
- Average wind speed in January: 9.3mph
The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in January
Brightwood, 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
Brightwood, MD
- Average rainfall in January: 2.01"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in January
Brightwood, MD
- Average rainfall days in January: 9.9 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in January
Brightwood, MD
- Average snowfall in January: 2.05"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Brightwood, MD
- Average snowfall days in January: 4.4 days
The month with the highest number of snowfall days is January (4.4 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
Brightwood, 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in January
Brightwood, MD
- Average sunshine days in January: 17.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in January
Brightwood, 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
Brightwood, 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
Brightwood, 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).
Brightwood, Maryland, USA
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