July weather forecast
Stoney Brook, MD

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Weather in July

July in Stoney Brook, Maryland, is a hot summer month, with an average temperature ranging between min 68.7°F (20.4°C) and max 87.3°F (30.7°C).

Temperature

In Stoney Brook, the highest average temperatures are observed in July, with a high of 87.3°F (30.7°C) and a low of 68.7°F (20.4°C).

Heat index

July's average heat index is appraised at a sweltering 98.6°F (37°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

July is the least humid month, with an average relative humidity of 70%.

Rainfall

In July, the rain falls for 17.5 days. Throughout July, 3.23" (82mm) of precipitation is accumulated. In Stoney Brook, during the entire year, the rain falls for 161.3 days and collects up to 33.19" (843mm) of precipitation.

Snowfall

In Stoney Brook, snow does not fall in May through October.

Daylight

In July, the average length of the day is 14h and 35min.
On the first day of July, sunrise is at 5:46 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:20 pm EDT.

Sunshine

With an average of 10.8h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 6 in July suggests the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Frequently asked questions

What month is the hottest in Stoney Brook?

July is the month when Stoney Brook experiences its warmest temperatures, averaging a high of 87.3°F (30.7°C) and a low of 68.7°F (20.4°C).

How hot does it get in July?

In July, the average high-temperature and low-temperature are 87.3°F (30.7°C) and 68.7°F (20.4°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in July is appraised at 98.6°F (37°C).

What is the least humid month?

With an average relative humidity of 70%, July is the least humid month.

What is the average humidity in July?

The average relative humidity in July is 70%.

How many days does it rain in July?

In Stoney Brook, during July, the rain falls for 17.5 days and regularly aggregates up to 3.23" (82mm) of precipitation.

When it does not snow?

In Stoney Brook, snow does not fall in May through October.

What is the average length of the day in July?

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

When is the sunrise / sunset in July?

In July, on the first day of the month, sunrise is at 5:46 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:20 pm EDT.

What month has the most sunshine?

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

How many hours of sunshine does Stoney Brook have in July?

In Stoney Brook, the average sunshine duration in July is 10.8h.

What are the months with the highest UV index in Stoney Brook?

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

What is the UV index reading in July?

The average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
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
Stoney Brook, MD

Average temperature in July - Stoney Brook, MD
  • Average high temperature in July: 87.3°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in July: 68.7°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 July
Stoney Brook, MD

Average pressure in July - Stoney Brook, 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 (29.95"Hg).

Average wind speed in July
Stoney Brook, MD

Average wind speed in July - Stoney Brook, MD
  • Average wind speed in July: 5.2mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in July
Stoney Brook, MD

Average humidity in July - Stoney Brook, MD
  • Average humidity in July: 70%

The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).

Average rainfall in July
Stoney Brook, MD

Average rainfall in July - Stoney Brook, MD
  • Average rainfall in July: 3.23"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.17").

Average rainfall days in July
Stoney Brook, MD

Average rainfall days in July - Stoney Brook, MD
  • Average rainfall days in July: 17.5 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in July
Stoney Brook, MD

Average snowfall in July - Stoney Brook, MD
  • Average snowfall in July: 0"

The months with the highest snowfall are January and March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Stoney Brook, MD

Average snowfall days in July - Stoney Brook, MD
  • Average snowfall days in July: 0 days

The months with the highest number of snowfall days are January and February (5.1 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
Stoney Brook, MD

Average daylight in July / Average sunshine in July - Stoney Brook, 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 48min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in July
Stoney Brook, MD

Average sunshine days in July - Stoney Brook, MD
  • Average sunshine days in July: 11 days

The month with the most sunshine days is November (19.5 days).
The months with the least sunshine days are May and July (11 days).

Average UV index in July
Stoney Brook, MD

Average UV index in July - Stoney Brook, 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, November and December (UV index 2).

Average cloud cover in July
Stoney Brook, MD

Average cloud cover in July - Stoney Brook, MD
  • Average cloud cover in July: 31

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in July
Stoney Brook, MD

Average visibility in July - Stoney Brook, MD
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Stoney Brook, Maryland, USA

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