Climate and monthly weather forecast
Ellicott City, MD

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The climate of Ellicott City

Centered in the heart of Maryland, Ellicott City is classified as a humid subtropical region with no dry season, according to the Köppen climate classification. Its specific geographical location on the east coast of the United States grants this city a unique weather profile. Throughout the year, climatic conditions in Ellicott City witness considerable variations, a testament to the city's unique and diverse weather.

Analyzing the data reveals intriguing patterns in weather fluctuations. The city experiences its highest temperatures from June to August, peaking at around 85.6°F (29.8°C) in July, while the coldest months spanning from December to February with lowest temperatures of 26.2°F (-3.2°C) in January. Throughout the year, the temperature oscillates between a cool 26.2°F (-3.2°C) and a warm 85.6°F (29.8°C).

Relative humidity in the city ranges from 71% in July to 77% in May and October. In terms of precipitation, it can rain any day in Ellicott City with rainfall days ranging from 9.7 in January to 18.2 in May. The city has an average monthly rainfall amount from 2.05" (52mm) in January to 3.74" (95mm) in August.

Unique weather patterns in Ellicott City include the virtually insignificant snowfall from April to November and an increase in snowfall in December and January, up to 2.4" (61mm). In comparison, February, March and December register minimal yet more significant snowfall.

Regarding sunshine, Ellicott experiences the highest number of hours in July with up to 10.8 hours, and the fewest in January with 5.1 hours. Interestingly, the cloud coverage percentage does not deviate significantly throughout the year, staying within the range of 29% to 46%.

The best time to visit Ellicott City

The most favorable time to visit Ellicott City depends significantly on the intended activities. For those who enjoy warm weather and longer daylight hours, June through August are the most ideal months, with the temperatures averaging from 80.6°F (27°C) to 85.6°F (29.8°C). These months also offer the most sunlight, averaging around 10.3 to 10.8 sunshine hours, resulting in perfect conditions for outdoor activities such as hiking, sightseeing, and exploring the city's historical architecture. The rainfall during the summer, although slightly higher than the rest of the year, does not pose a significant challenge to travel plans.

The worst time to visit Ellicott City

On the other hand, the months from December to February are possibly the least favorable for tourists. The weather during this period is relatively cold with an average temperature varying from 26.2°F (-3.2°C) to 44.1°F (6.7°C). The city also experiences an increase in snowfall, specifically in December and January. Furthermore, shorter daylight hours during these months, with an average of 9.5 to 10 daylight hours, make these months less optimal for outdoor activities.

Spring weather in Ellicott City

Spring encompasses a wide range of temperatures in Ellicott City. March starts off chilly with low temperatures of 35.6°F (2°C), but by May, temperatures climb to balmy highs of 72.5°F (22.5°C). Relative humidity remains high throughout the spring months, slightly spiking in May at 77%. A noticeable increase in rainfall from 2.48" (63mm) in March to 3.11" (79mm) in May paints the city in vibrant green, a visual treat for visitors.

Summer weather in Ellicott City

Summers in Ellicott City are typically warm and somewhat humid. June through August sees average high temperatures rising steadily from 80.6°F (27°C) to 85.6°F (29.8°C), before cooling slightly to 83.5°F (28.6°C) in August. In terms of rainfall, the summer months receive fairly consistent rainfall, with July seeing the most at 3.19" (81mm). Despite this, the summer months also enjoy the most sunshine hours with an average of 10.3 to 10.8 sunlight hours per day, making it an ideal time for outdoor activities.

Autumn weather in Ellicott City

Autumn brings a pleasant change in the weather with temperatures cooling down from a high of 76.8°F (24.9°C) in September to a more moderate 53.1°F (11.7°C) by November. The amount of rainfall decreases from 2.17" (55mm) in September to 2.44" (62mm) in November. Despite the decline in temperatures, fall days in the city remain relatively sunny, with sunshine hours ranging from 9.1 in September to 5.8 in November.

Winter weather in Ellicott City

The winter months in Ellicott City are typically cold with the average high temperatures ranging between 38.1°F (3.4°C) and 44.1°F (6.7°C) and the average low temperatures dropping to a chilly 26.2°F (-3.2°C) in January. Snowfall occurs particularly in December and January, up to 2.4" (61mm) at maximum. Short daylight hours, with an average range of 9.5 - 9.8 hours, and increasing cloud cover, indicate the onset of winter. Nonetheless, the city's winters do hold a certain charm, making it a perfect winter getaway for those who enjoy the cold weather.

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. Weather in January »

Weather in February

Gracefully transitioning from the chills of January, February shows mild weather enhancements despite still being winter in Ellicott City. Its noticeable feature is the increment in temperatures that reach 42.3°F (5.7°C), hinting towards the arrival of spring. Weather in February »

Weather in March

Welcome to March in Ellicott City, a month that hints at the arrival of spring with an awakened, vibrant nature. Weather conditions become comparably mild with average high temperatures reaching 50.5°F (10.3°C). The city shrugs off its winter blanket completely with snowfall reaching a nearly negligible 2.36" (60mm). Weather in March »

Weather in April

April in Ellicott City marks a significant shift in weather patterns highlighted by spring’s full bloom. It witnesses considerable warmth as the mercury can hit a pleasant 63.1°F (17.3°C), signifying one of the most significant temperature jumps of the year. Weather in April »

Weather in May

May is a delightful month in Ellicott City with the onset of comfortable and warm weather. True summer-like conditions begin to take hold with temperatures soaring up to 72.5°F (22.5°C). Rainfall patterns quite interestingly peak at an average accumulation of 3.11" (79mm), which is the highest in the year till now. Weather in May »

Weather in June

June introduces the summer season in Ellicott City, Maryland, featuring long, sunny and warm days. The average high temperature intensifies to a sweltering 80.6°F (27°C), marking the progression into peak summer months. Thunderstorm activity is sporadic, contributing to an average rainfall of 2.52" (64mm). Weather in June »

Weather in July

The weather in July takes Ellicott City into the peak of summer, delivering its warmest temperatures on average, with a sizzling high that can reach up to 85.6°F (29.8°C). Distant rumbles of thunder become a common evening occurrence as the city receives its highest rainfall of the year at 3.19" (81mm). Weather in July »

Weather in August

August continues the summer saga in Ellicott City, with both temperatures and the frequency of thunderstorms remaining relatively high. The city experiences slightly lower temperatures compared to July, with a high of 83.5°F (28.6°C). Weather in August »

Weather in September

September marks the transition from summer to fall in Ellicott City. It brings a gradual drop in temperature with highs around 76.8°F (24.9°C), initiating a cooling trend over the coming months. The rains retreat drastically bringing a significant decrease in monthly rainfall to only 2.17" (55mm). Weather in September »

Weather in October

October in Ellicott City showcases captivating Fall colors and congenial weather conditions. While the mercury drops to a cooler 65.1°F (18.4°C), the city remains free from any snowfall. Autumnal hues are in full display, with the cityscape transitioning from green to gold. Weather in October »

Weather in November

November brings a distinctively cold flavor to the weather conditions in Ellicott City. With temperatures dropping significantly to around 53.1°F (11.7°C), the arrival of winter is no longer a distant future. A very marginal amount of snowfall around 0.16" (4mm) does not restrict outdoor activities but is a reminder of what's to come. Weather in November »

Weather in December

December rings in the winter season in Ellicott City, characterized by cold conditions, shorter days, and festive cheer. Temperature drops further from November, exhibiting a frosty cold low of 32.9°F (0.5°C). Snowfall increases from the previous month, depositing about 1.22" (31mm), covering the city in a beautiful white blanket. Weather in December »
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.

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 Ellicott City, during the entire year, the rain falls for 165.5 days and collects up to 31.65" (804mm) of precipitation.

When does it snow?

January through April, November and December are months with snowfall in Ellicott City.

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?

Throughout the year, there are 16.6 snowfall days, and 7.8" (198mm) of snow is accumulated.

What is the month with the lowest UV index?

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

What is the month with the least sunshine?

With an average of 5h of sunshine, February has the least sunshine of the year.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What are the most humid months?

May and October, with an average relative humidity of 77%, are most humid months.

When it does not snow?

In Ellicott City, snow does not fall in May through October.

What is the month with the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Ellicott City.

When are the longest days?

June has the longest days of the year, with an average of 14h and 54min of daylight.

What are the warmest months?

July, recording an average high temperature of 85.6°F (29.8°C) and a low temperature of 68.7°F (20.4°C), is Ellicott City's warmest month.

What is the least humid month in Ellicott City?

The least humid month is July, with an average relative humidity of 71%.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.8h of sunshine.

What is the rainiest month?

August is the month with the most rainfall. Rain falls for 15.9 days and accumulates 3.74" (95mm) of precipitation.

What is the month with the shortest days?

With an average of 9h and 30min of daylight, December has the shortest days of the year.
Today
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Long-term
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Average temperature
Ellicott City, MD

Average temperature - Ellicott City, MD

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).

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
Ellicott City, MD

Average pressure - Ellicott City, MD

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
Ellicott City, MD

Average wind speed - Ellicott City, MD

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
Ellicott City, MD

Average humidity - Ellicott City, MD

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

Average rainfall
Ellicott City, MD

Average rainfall - Ellicott City, MD

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
Ellicott City, MD

Average rainfall days - Ellicott City, MD

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
Ellicott City, MD

Average snowfall - Ellicott City, MD

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
Ellicott City, MD

Average snowfall days - Ellicott City, MD

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 / Average sunshine
Ellicott City, MD

Average daylight / Average sunshine - Ellicott City, MD

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).

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
Ellicott City, MD

Average sunshine days - Ellicott City, MD

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
Ellicott City, MD

Average UV index - Ellicott City, MD

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
Ellicott City, MD

Average cloud cover - Ellicott City, MD

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
Ellicott City, MD

Average visibility - Ellicott City, MD

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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