July weather forecast
Rosaryville, MD

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Weather in July

July in Rosaryville, Maryland, is a hot summer month, with temperature in the range of an average low of 69.8°F (21°C) and an average high of 86.7°F (30.4°C).

Temperature

Temperature readings reach their annual highs in July, averaging 86.7°F (30.4°C) and a minimum average of 69.8°F (21°C).

Heat index

During July, the heat index is evaluated at a fiery hot 98.6°F (37°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The average relative humidity in July in Rosaryville is 73%.

Rainfall

In July, the rain falls for 17.8 days. Throughout July, 3.62" (92mm) of precipitation is accumulated. Throughout the year, there are 164.8 rainfall days, and 32.87" (835mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Rosaryville, the average length of the day in July is 14h and 34min.
On the first day of the month, sunrise is at 5:46 am and sunset at 8:36 pm. On the last day of July, sunrise is at 6:08 am and sunset at 8:19 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 11h 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 value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 6 in July leads to these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year?

With average high temperatures of 86.7°F (30.4°C) and lows of 69.8°F (21°C), July is the warmest month.

How hot is it in July?

The high-temperature during July is 86.7°F (30.4°C) and the low-temperature is 69.8°F (21°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 98.6°F (37°C).

What is the average humidity in July?

In Rosaryville, the average relative humidity in July is 73%.

How many days does it rain in July?

In Rosaryville, in July, during 17.8 rainfall days, 3.62" (92mm) of precipitation is typically accumulated.

When it does not snow?

In Rosaryville, snow does not fall in May through October.

How many hours of daylight does Rosaryville have in July?

In July, the average day length is 14h and 34min.

When are sunrise and sunset in July?

On the first day of July, sunrise is at 5:46 am and sunset at 8:36 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?

The month with the most sunshine is July, with an average of 11h of sunshine.

How many hours of sunshine does Rosaryville have in July?

In Rosaryville, the average sunshine duration in July is 11h.

When is 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 Rosaryville?

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

Average temperature in July - Rosaryville, MD
  • Average high temperature in July: 86.7°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in July: 69.8°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).

Average pressure in July
Rosaryville, MD

Average pressure in July - Rosaryville, 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
Rosaryville, MD

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

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).

Average humidity in July
Rosaryville, MD

Average humidity in July - Rosaryville, MD
  • Average humidity in July: 73%

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are January, March and April (72%).

Average rainfall in July
Rosaryville, MD

Average rainfall in July - Rosaryville, MD
  • Average rainfall in July: 3.62"

The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in July
Rosaryville, MD

Average rainfall days in July - Rosaryville, MD
  • Average rainfall days in July: 17.8 days

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

Average snowfall in July
Rosaryville, MD

Average snowfall in July - Rosaryville, MD
  • Average snowfall in July: 0"

The month with the highest snowfall is January (2.76").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Rosaryville, MD

Average snowfall days in July - Rosaryville, 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
Rosaryville, MD

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in July: 11h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in July
Rosaryville, MD

Average sunshine days in July - Rosaryville, MD
  • Average sunshine days in July: 10.8 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.8 days).

Average UV index in July
Rosaryville, MD

Average UV index in July - Rosaryville, 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
Rosaryville, MD

Average cloud cover in July - Rosaryville, MD
  • Average cloud cover in July: 29

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in July
Rosaryville, MD

Average visibility in July - Rosaryville, 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).

Rosaryville, Maryland, USA

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