January weather forecast
Ellicott City, MD

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Weather in January

The New Year begins with decidedly chilly conditions in Ellicott City, Maryland. Regular frosty mornings and freezing evenings are common, the lowest temperature can drop to 26.2°F (-3.2°C). January may not be the coldest month of the year, but it is known for plenty of snowfall, totaling 2.4" (61mm) on average. Days are short and the sun shines for just above 5 hours per day, making it less suitable for outdoor activities. Improvement in weather conditions becomes noticeable towards the end of the month as Ellicott City moves closer to spring.

Temperature

January, noted for its average high-temperature of 38.1°F (3.4°C) and an average low-temperature of 26.2°F (-3.2°C), is considered the coldest month.

Humidity

The average relative humidity in January in Ellicott City is 73%.

Rainfall

The month with the least rainfall is January, when the rain falls for 9.7 days and typically collects 2.05" (52mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 4.9 days and typically aggregates up to 2.4" (61mm) of snow.

Daylight

In Ellicott City, the average length of the day in January is 9h and 47min.
On the first day of the month, sunrise is at 7:26 am and sunset at 4:54 pm. On the last day of January, sunrise is at 7:15 am and sunset at 5:26 pm EST.

Sunshine

In January, the average sunshine is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 2 during January, leads to the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Opt for tightly woven and loose clothing to enhance protection from the Sun. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

January, recording an average high temperature of 38.1°F (3.4°C) and a low temperature of 26.2°F (-3.2°C), is Ellicott City's coldest month.

How cold is January?

The average high-temperature, in January, in Ellicott City, is 38.1°F (3.4°C), while the average low-temperature is 26.2°F (-3.2°C).

What is the average humidity in January?

In January, the average relative humidity is 73%.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 9.7 days and typically collects 2.05" (52mm) of precipitation.

How much does it rain in January?

In January, the rain falls for 9.7 days. Throughout January, 2.05" (52mm) of precipitation is accumulated.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 4.9 days and accumulates 2.4" (61mm) of snow.

How much does it snow in January?

In Ellicott City, in January, snow falls for 4.9 days, with typically accumulated 2.4" (61mm) of snow.

How many hours of daylight does Ellicott City have in January?

The average day length in January is 9h and 47min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:26 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:26 pm EST.

How long on average sun shines in January?

The average sunshine duration in January is 5.1h.

What is the month with the lowest UV index?

The months with the lowest UV index in Ellicott City are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in January?

In Ellicott City, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Ellicott City, MD

Average temperature in January - Ellicott City, MD
  • Average high temperature in January: 38.1°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 (38.1°F).

  • Average low temperature in January: 26.2°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in January
Ellicott City, MD

Average pressure in January - Ellicott City, 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
Ellicott City, MD

Average wind speed in January - Ellicott City, MD
  • Average wind speed in January: 8.6mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in January
Ellicott City, MD

Average humidity in January - Ellicott City, MD
  • Average humidity in January: 73%

The months with the highest relative humidity are May and October (77%).
The month with the lowest relative humidity is July (71%).

Average rainfall in January
Ellicott City, MD

Average rainfall in January - Ellicott City, MD
  • Average rainfall in January: 2.05"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in January
Ellicott City, MD

Average rainfall days in January - Ellicott City, MD
  • Average rainfall days in January: 9.7 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.7 days).

Average snowfall in January
Ellicott City, MD

Average snowfall in January - Ellicott City, MD
  • Average snowfall in January: 2.4"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Ellicott City, MD

Average snowfall days in January - Ellicott City, MD
  • Average snowfall days in January: 4.9 days

The month with the highest number of snowfall days is January (4.9 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
Ellicott City, MD

Average daylight in January / Average sunshine in January - Ellicott City, 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 1min

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
Ellicott City, MD

Average sunshine days in January - Ellicott City, MD
  • Average sunshine days in January: 16.9 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).

Average UV index in January
Ellicott City, MD

Average UV index in January - Ellicott City, 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, November and December (UV index 2).

Average cloud cover in January
Ellicott City, MD

Average cloud cover in January - Ellicott City, MD
  • Average cloud cover in January: 44

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in January
Ellicott City, MD

Average visibility in January - Ellicott City, 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).

Ellicott City, Maryland, USA

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