July weather forecast
Rosemary Hills, MD

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Weather in July

July is a hot summer month in Rosemary Hills, Maryland, with an average temperature fluctuating between 69.6°F (20.9°C) and 87.4°F (30.8°C).

Temperature

Rosemary Hills's temperature records reveal July as the warmest month, marked by average highs of 87.4°F (30.8°C) and lows of 69.6°F (20.9°C).

Heat index

For July, the heat index is calculated to be a sweltering 98.6°F (37°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

July is the least humid month, with an average relative humidity of 69%.

Rainfall

In July, in Rosemary Hills, the rain falls for 15.8 days. Throughout July, 2.99" (76mm) of precipitation is accumulated. Throughout the year, there are 154.8 rainfall days, and 30.28" (769mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Rosemary Hills.

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 8:37 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:20 pm EDT.

Sunshine

The month with the most sunshine in Rosemary Hills is July, with an average of 10.6h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 6 in July translates into the following instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

Rosemary Hills, Maryland, records the warmest temperatures in July, averaging a high of 87.4°F (30.8°C) and a low of 69.6°F (20.9°C).

Is it hot during July?

Rosemary Hills in July has an average high-temperature of 87.4°F (30.8°C) and an average low-temperature of 69.6°F (20.9°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in July is calculated to be 98.6°F (37°C).

What is the least humid month in Rosemary Hills?

July is the least humid month, with an average relative humidity of 69%.

What is the average humidity in July?

In Rosemary Hills, Maryland, the average relative humidity in July is 69%.

How much does it rain in July?

In July, the rain falls for 15.8 days. Throughout July, 2.99" (76mm) of precipitation is accumulated.

When it does not snow?

In Rosemary Hills, snow does not fall in May through October.

What is the average length of the day in July?

In July, the average day length 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 8:20 pm EDT.

What month has the most sunshine?

With an average of 10.6h of sunshine, July has the most sunshine of the year.

How many hours of sunshine does Rosemary Hills have in July?

In Rosemary Hills, the average sunshine duration in July is 10.6h.

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 intensity in July?

In Rosemary Hills, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe 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
Rosemary Hills, MD

Average temperature in July - Rosemary Hills, 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 (39.7°F).

  • Average low temperature in July: 69.6°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

Average pressure in July
Rosemary Hills, MD

Average pressure in July - Rosemary Hills, 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
Rosemary Hills, MD

Average wind speed in July - Rosemary Hills, MD
  • Average wind speed in July: 5.3mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in July
Rosemary Hills, MD

Average humidity in July - Rosemary Hills, MD
  • Average humidity in July: 69%

The months with the highest relative humidity are May, October and December (75%).
The month with the lowest relative humidity is July (69%).

Average rainfall in July
Rosemary Hills, MD

Average rainfall in July - Rosemary Hills, MD
  • Average rainfall in July: 2.99"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (1.89").

Average rainfall days in July
Rosemary Hills, MD

Average rainfall days in July - Rosemary Hills, MD
  • Average rainfall days in July: 15.8 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in July
Rosemary Hills, MD

Average snowfall in July - Rosemary Hills, MD
  • Average snowfall in July: 0"

The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Rosemary Hills, MD

Average snowfall days in July - Rosemary Hills, MD
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (4.6 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
Rosemary Hills, MD

Average daylight in July / Average sunshine in July - Rosemary Hills, 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in July
Rosemary Hills, MD

Average sunshine days in July - Rosemary Hills, MD
  • Average sunshine days in July: 13.5 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12 days).

Average UV index in July
Rosemary Hills, MD

Average UV index in July - Rosemary Hills, 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
Rosemary Hills, MD

Average cloud cover in July - Rosemary Hills, MD
  • Average cloud cover in July: 32

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in July
Rosemary Hills, MD

Average visibility in July - Rosemary Hills, 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).

Rosemary Hills, Maryland, USA

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