July weather forecast
New Carrollton, MD

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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. In July, balmy temperatures reach up an average high of 87.4°F (30.8°C). As the city moves away from the summer solstice, daylight hours start to gradually decrease, subtly nudging towards the next phase of weather in the coming months.

Temperature

New Carrollton reaches its highest average temperatures in July, measuring 87.4°F (30.8°C) at the peak and 70°F (21.1°C) at the lowest.

Heat index

The heat index for July is computed to be a very hot 98.6°F (37°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

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

Rainfall

In New Carrollton, during July, the rain falls for 16.8 days and regularly aggregates up to 3.11" (79mm) of precipitation. Throughout the year, there are 157.9 rainfall days, and 31.14" (791mm) of precipitation is accumulated.

Snowfall

May through November are months without snowfall.

Daylight

In New Carrollton, the average length of the day in July is 14h and 35min.
On the first day of the month, sunrise is at 5:46 am and sunset at 8:37 pm. On the last day of July, sunrise is at 6:08 am and sunset at 8:19 pm EDT.

Sunshine

The month with the most sunshine is July, with an average of 10.9h of sunshine.

UV index

The months with the highest UV index in New Carrollton are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In July, a regular UV index of 6 translates into these guidelines:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

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).

Is it hot during July?

New Carrollton in July has an average high-temperature of 87.4°F (30.8°C) and an average low-temperature of 70°F (21.1°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in July is computed to be 98.6°F (37°C).

What is the least humid month?

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

What is the average humidity in July?

The average relative humidity in July is 71%.

How many days does it rain in July?

In July, the rain falls for 16.8 days. Throughout July, 3.11" (79mm) of precipitation is accumulated.

When it does not snow?

May through November are months without snowfall.

How many hours of daylight does New Carrollton have in July?

The average day length in July is 14h and 35min.

When are sunrise and sunset in July?

On the first day of July, sunrise is at 5:46 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:19 pm EDT.

What month has the most sunshine?

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

How many hours of sunshine does New Carrollton have in July?

In New Carrollton, the average sunshine duration in July is 10.9h.

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.

What is the UV index reading in July?

In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
New Carrollton, MD

Average temperature in July - New Carrollton, MD
  • Average high temperature in July: 87.4°F

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).

  • Average low temperature in July: 70°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 in July
New Carrollton, MD

Average pressure in July - New Carrollton, MD
  • Average pressure in July: 29.97"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 July
New Carrollton, MD

Average wind speed in July - New Carrollton, MD
  • Average wind speed in July: 5.4mph

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 in July
New Carrollton, MD

Average humidity in July - New Carrollton, MD
  • Average humidity in July: 71%

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 in July
New Carrollton, MD

Average rainfall in July - New Carrollton, MD
  • Average rainfall in July: 3.11"

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 in July
New Carrollton, MD

Average rainfall days in July - New Carrollton, MD
  • Average rainfall days in July: 16.8 days

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 in July
New Carrollton, MD

Average snowfall in July - New Carrollton, MD
  • Average snowfall in July: 0"

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 in July
New Carrollton, MD

Average snowfall days in July - New Carrollton, MD
  • Average snowfall days in July: 0 days

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 in July /
Average sunshine in July
New Carrollton, MD

Average daylight in July / Average sunshine in July - New Carrollton, MD
  • Average daylight in July: 14h and 4min

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 July: 10h and 5min

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 in July
New Carrollton, MD

Average sunshine days in July - New Carrollton, MD
  • Average sunshine days in July: 12 days

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 in July
New Carrollton, MD

Average UV index in July - New Carrollton, MD
  • Average UV index in July: 6

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 in July
New Carrollton, MD

Average cloud cover in July - New Carrollton, MD
  • Average cloud cover in July: 29

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 July
New Carrollton, MD

Average visibility in July - New Carrollton, MD
  • Average visibility in July: 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).

New Carrollton, Maryland, USA

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