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
Temperature readings reach their annual highs in January, averaging 42.4°F (5.8°C) and a minimum average of 33.3°F (0.7°C).Humidity
January and November, with an average relative humidity of 74%, are the least humid months.Rainfall
The month with the least rainfall is January, when the rain falls for 9.3 days and typically collects 1.93" (49mm) of precipitation.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 0.79" (20mm) of snow.Daylight
In January, the average length of the day is 9h and 53min.On the first day of the month, sunrise is at 7:20 am and sunset at 4:55 pm. On the last day of January, sunrise is at 7:09 am and sunset at 5:25 pm EST.
Sunshine
In January, the average sunshine is 5.5h.UV index
The months with the lowest UV index in Ewell, Maryland, are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 2 during January morphs into the following directions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
Is January cold?
What are the least humid months?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January in Ewell?
What is the snowiest month?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Ewell have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Ewell, MD
- Average high temperature in January: 42.4°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (42.4°F).
- Average low temperature in January: 33.3°F
The month with the highest average low temperature is July (74.7°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).
Average pressure in January
Ewell, 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 (29.95"Hg).
Average wind speed in January
Ewell, MD
- Average wind speed in January: 12.1mph
The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in January
Ewell, MD
- Average humidity in January: 74%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in January
Ewell, MD
- Average rainfall in January: 1.93"
The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in January
Ewell, MD
- Average rainfall days in January: 9.3 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in January
Ewell, MD
- Average snowfall in January: 0.79"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Ewell, MD
- Average snowfall days in January: 1.9 days
The month with the highest number of snowfall days is January (1.9 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
Ewell, 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 36min).
- Average sunshine in January: 5h and 3min
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 6min).
Average sunshine days in January
Ewell, MD
- Average sunshine days in January: 18.2 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is August (11.2 days).
Average UV index in January
Ewell, MD
- Average UV index in January: 2
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in January
Ewell, MD
- Average cloud cover in January: 42
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in January
Ewell, 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).
Ewell, Maryland, USA
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