July weather forecast
Chestnut Hill, MD

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Weather in July

July, the same as June, is a moderately hot summer month in Chestnut Hill, Maryland, with an average temperature fluctuating between 68.5°F (20.3°C) and 84.9°F (29.4°C).

Temperature

July, on average, is the warmest month, registering a high temperature of 84.9°F (29.4°C) and a low of 68.5°F (20.3°C).

Heat index

The average heat index in July is evaluated at a tropical 93.2°F (34°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

The average relative humidity in July is 74%.

Rainfall

In Chestnut Hill, in July, it is raining for 12.6 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, there are 102.3 rainfall days, and 9.25" (235mm) of precipitation is accumulated.

Snowfall

In Chestnut Hill, snow does not fall in May through October.

Daylight

In July, the average length of the day is 14h and 37min.
On the first day of the month, sunrise is at 5:44 am and sunset at 8:37 pm. On the last day of July, sunrise is at 6:07 am and sunset at 8:20 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.8h 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 of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 6 during July leads to these instructions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

Temperature readings reach their annual highs in July, averaging 84.9°F (29.4°C) and a minimum average of 68.5°F (20.3°C).

Is it hot during July?

In July, in Chestnut Hill, the average high-temperature is 84.9°F (29.4°C), and the average low-temperature is 68.5°F (20.3°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in July is evaluated at 93.2°F (34°C).

What is the average humidity in July?

In July, the average relative humidity is 74%.

How much does it rain in July?

In Chestnut Hill, in July, it is raining for 12.6 days, with typically 1.22" (31mm) of accumulated precipitation.

When it does not snow in Chestnut Hill?

In Chestnut Hill, 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 37min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:44 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 8:20 pm EDT.

What month has the most sunshine?

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

How long on average sun shines in July?

In Chestnut Hill, the average sunshine duration in July is 10.8h.

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.

How high is the UV index 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 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
Chestnut Hill, MD

Average temperature in July - Chestnut Hill, MD
  • Average high temperature in July: 84.9°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in July: 68.5°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

Average pressure in July
Chestnut Hill, MD

Average pressure in July - Chestnut Hill, 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
Chestnut Hill, MD

Average wind speed in July - Chestnut Hill, MD
  • Average wind speed in July: 5.5mph

The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in July
Chestnut Hill, MD

Average humidity in July - Chestnut Hill, MD
  • Average humidity in July: 74%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in July
Chestnut Hill, MD

Average rainfall in July - Chestnut Hill, MD
  • Average rainfall in July: 1.22"

The wettest month (with the highest rainfall) is August (1.46").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in July
Chestnut Hill, MD

Average rainfall days in July - Chestnut Hill, MD
  • Average rainfall days in July: 12.6 days

The month with the highest number of rainy days is July (12.6 days).
The month with the least rainy days is January (5.2 days).

Average snowfall in July
Chestnut Hill, MD

Average snowfall in July - Chestnut Hill, MD
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.55").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Chestnut Hill, MD

Average snowfall days in July - Chestnut Hill, MD
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (3.8 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
Chestnut Hill, MD

Average daylight in July / Average sunshine in July - Chestnut Hill, 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 February (Average sunshine: 4h and 54min).

Average sunshine days in July
Chestnut Hill, MD

Average sunshine days in July - Chestnut Hill, MD
  • Average sunshine days in July: 15.2 days

The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is July (15.2 days).

Average UV index in July
Chestnut Hill, MD

Average UV index in July - Chestnut Hill, 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, February, November and December (UV index 2).

Average cloud cover in July
Chestnut Hill, MD

Average cloud cover in July - Chestnut Hill, MD
  • Average cloud cover in July: 30

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in July
Chestnut Hill, MD

Average visibility in July - Chestnut Hill, 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).

Chestnut Hill, Maryland, USA

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