Climate and monthly weather forecast
New Carrollton, MD

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The climate of New Carrollton

New Carrollton, located in Maryland, USA, features a predominant Humid subtropical climate, as classified by the Köppen climate system. The absence of a dry season marks its unique climatological profile. The city is subject to considerable weather variations over the year owing to its geographical position. It has a wide range of temperatures, from 27.7°F (-2.4°C) in the cooler months up to 87.4°F (30.8°C) during the peak of summer. The relative humidity follows a consistent pattern, oscillating between 71% and 76%.

Rainfall is a year-round phenomenon here with monthly averages ranging from 2.01" (51mm) to 3.58" (91mm). More than rainfall days mean that the city experiences over a week of rainfall practically every month. A unique pattern of note is the period between May to October where New Carrollton goes without any snowfall. The daylight hours vary too, with the longest day being about 14.9 hours and the shortest around 9.5 hours. Average wind speeds generally tend to be between 5.3mph (8.5km/h) to 8.3mph (13.4km/h), suggesting a generally calm atmospheric condition.

The best time to visit New Carrollton

The ideal time to tour New Carrollton lies between May and September. During this period, the city enjoys the highest average temperatures of the year, peaking at 87.4°F (30.8°C) in July. These warmer months offer ample sunshine, with July and August allowing approximately 10.9 hours and 10.3 hours of sunshine respectively, making them perfect for outdoor activities and sightseeing. Apart from the appealing temperatures, the visibility is stable at 6 miles throughout the year providing clear and scenic views of the city.

The worst time to visit New Carrollton

Winter months, especially from December to February, may not be the most suitable time for visits. The temperatures plunge to an average low of 27.7°F (-2.4°C) in January, and the possibility of snowfall can be an inconvenience. Snowfall in New Carrollton primarily occurs between December and February with January recording the highest snowfalls of 2.24" (57mm), potentially disrupting travel plans. Furthermore, the daylight hours are shorter, significantly reducing the window for outdoor exploration.

Spring weather in New Carrollton

Spring in New Carrollton is marked by a dramatic rise in temperature. From an average high of 52.3°F (11.3°C) in March, it soars to 73.9°F (23.3°C) by May. Humidity levels moderately increase, standing between 71% and 76% over this period. Rainfall averages from 2.36" (60mm) in March to 2.99" (76mm) in May, with the number of rainy days peaking at 19.7 in May. Enjoy the longer daylight hours, increasing from 12 hours in March to 14.3 hours in May.

Summer weather in New Carrollton

The city glows in summer with an average high temperature that hovers around 85.1°F (29.5°C) from June to August. The average low temperature remains between 64.6°F (18.1°C) to 70°F (21.1°C), making the evening walks pleasant. Occasional bouts of heavy rainfall can be expected, culminating at 3.58" (91mm) in August. However, the days are filled with sunshine for an average of 10 hours daily.

Autumn weather in New Carrollton

Autumn sees a decrease in temperatures, transitioning from a high of 78.1°F (25.6°C) in September to a more moderate 54.1°F (12.3°C) by November. Evenings become cooler as the temperatures descend from a pleasing 62.2°F (16.8°C) to 40.1°F (4.5°C), and the relative humidity levels rise steadily from 74% to 73%. Rainfall drops to 2.17" (55mm) in November with just nine rainy days.

Winter weather in New Carrollton

Winter brings a cold atmosphere to New Carrollton. The average high temperature falls to 39.9°F (4.4°C) in December and bottoms out at 27.7°F (-2.4°C) in January. The average low temperature can dip down to a chilling 34.3°F (1.3°C) in December. Limited snowfall occurs, peaking at 2.24" (57mm) in January. The daylight hours recede to as low as 9.5 hours in December, accompanied by around 5.1 hours of sunshine. Despite the cold, this season has its charm, with the city's landscapes transformed under a blanket of snow.

Weather in January

January in New Carrollton, Maryland ushers in the winter season with below freezing temperatures and a characteristic chill in the air. This makes for a weather pattern predominantly marked by cold spells followed by brief periods of respite. Weather in January »

Weather in February

February in New Carrollton does not deviate significantly from the cold weather established in January. This month, however, showcases slightly improved weather conditions, with the average high temperature cresting to 44.2°F (6.8°C), serving as a precursor to the imminent arrival of spring. Weather in February »

Weather in March

The arrival of March in New Carrollton brings a noticeable shift in weather patterns, transitioning from the harsh winter to the more temperate spring conditions. As the city moves towards warmer days, the weather exhibits a distinct upward trend in temperatures. Weather in March »

Weather in April

With April, New Carrollton witnesses a full-fledged transformation into a spring landscape. This shift in weather can be considered a welcome change from the wintry conditions experienced in the preceding months. The higher temperatures and significantly decreased snowfall are one of the most notable indication of this seasonal transition. Weather in April »

Weather in May

May in New Carrollton sees a further enhancement of the spring weather that April initiated. The weather at this time tends to favor outdoor activities, with warmer temperatures drawing people out to enjoy the city's attractions. The record-breaking leap in daylight hours rings in the start of the longest days of the year. Weather in May »

Weather in June

June ushers in the summer season in New Carrollton, Maryland. With the steep increase in temperatures, town dwellers can look forward to longer daylight hours and more sunshine. Given the highest average temperature peaking at 81.9°F (27.7°C), June unquestionably is the door opener to the hottest months of the year. Weather in June »

Weather in July

July is typically the warmest month in New Carrollton, with a seeming plateau in elevated temperatures. This peak of the summer season is characterized by generally hot, dry conditions providing a stark contrast to the chilly beginnings of the year. Weather in July »

Weather in August

There is a minimal decrease in August's weather patterns in New Carrollton as compared to the preceding month. The city enjoys the final whiffs of the summer heat, with temperatures still on the higher end of the scale. Even though the average high temperatures drop slightly to 85.1°F (29.5°C), August remains a month of fairly hot and clear days. Weather in August »

Weather in September

September brings the advent of the fall season in New Carrollton. However, the temperatures, while slightly reduced, retain some vestiges of the summer warmth. The weather starts taking on a cooler demeanor with the average highest temperature residing at 78.1°F (25.6°C). Weather in September »

Weather in October

October in New Carrollton further fosters the trend of lowering temperatures established in September. The fall season, in full swing at this point, displays a symphony of changing foliage and crisp air. Though day length continues to decrease, the accompanying autumn chill does not deter outdoor activities. Weather in October »

Weather in November

New Carrollton's November weather is a clear departure from the mild climate of October. The colder temperatures echo the earlier part of the year, while color-changing leaves accentuate the beauty of the cityscape. A significantly noticeable drop marks the weather trend with an average high temperature standing at 54.1°F (12.3°C). Weather in November »

Weather in December

December reinstates winter in New Carrollton, closing out the year with temperatures sinking noticeably from November. The holiday season sees the city wrapped in cold, with a chance of snow, reminiscent of the weather in the year's introductory month. Weather in December »
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January, known for its average high temperature of 39.9°F (4.4°C) and an average low temperature of 27.7°F (-2.4°C), is the coldest month.

What is the driest month?

The month with the least rainfall in New Carrollton is January, when the rain falls for 9.3 days and typically collects 2.01" (51mm) of precipitation.

How much does it rain?

Throughout the year, there are 157.9 rainfall days, and 31.14" (791mm) of precipitation is accumulated.

When does it snow?

January through April and December are months with snowfall.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 4.1 days and typically aggregates up to 2.6" (66mm) of snow.

How many days does it snow?

Throughout the year, there are 13.5 snowfall days, and 7.2" (183mm) of snow is accumulated.

What are the months with the lowest UV index?

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

What is the month with the least sunshine?

The month with the least sunshine in New Carrollton is February, with an average of 5h of sunshine.

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 least humid months in New Carrollton?

The months with the lowest humidity are April and July, with an average relative humidity of 71%.

What are the most humid months?

The months with the highest humidity in New Carrollton are May, October and December, with an average relative humidity of 76%.

When it does not snow?

In New Carrollton, snow does not fall in May through November.

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.

When are the longest days?

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

What part of the year is the hottest?

In New Carrollton, the average highest temperatures are observed in July, with a high of 87.4°F (30.8°C) and a low of 70°F (21.1°C).

What month has the most sunshine?

With an average of 10.9h of sunshine, July has the most sunshine of the year.

What is the wettest month?

The month with the most rainfall is August, when the rain falls for 15.8 days and typically aggregates up to 3.58" (91mm) of precipitation.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.
Today
Tomorrow
Long-term
YearJFMAMJJASOND

Average temperature
New Carrollton, MD

Average temperature - New Carrollton, MD

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure
New Carrollton, MD

Average pressure - New Carrollton, 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
New Carrollton, MD

Average wind speed - New Carrollton, MD

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity
New Carrollton, MD

Average humidity - New Carrollton, MD

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

Average rainfall
New Carrollton, MD

Average rainfall - New Carrollton, MD

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").

Average rainfall days
New Carrollton, MD

Average rainfall days - New Carrollton, MD

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).

Average snowfall
New Carrollton, MD

Average snowfall - New Carrollton, MD

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days
New Carrollton, MD

Average snowfall days - New Carrollton, MD

The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
New Carrollton, MD

Average daylight / Average sunshine - New Carrollton, 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days
New Carrollton, MD

Average sunshine days - New Carrollton, MD

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

Average UV index
New Carrollton, MD

Average UV index - New Carrollton, 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 and December (UV index 2).

Average cloud cover
New Carrollton, MD

Average cloud cover - New Carrollton, 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
New Carrollton, MD

Average visibility - New Carrollton, 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).

New Carrollton, Maryland, USA

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