July weather forecast
Chatham Hills, MD

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Weather in July

July, like June, in Chatham Hills, Maryland, is another warm summer month, with an average temperature varying between 70.7°F (21.5°C) and 85.6°F (29.8°C).

Temperature

In Chatham Hills, July is identified by the highest average temperatures, reaching a peak of 85.6°F (29.8°C) and a low of 70.7°F (21.5°C).

Heat index

For July, the heat index is estimated at a sweltering 95°F (35°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In July, the average relative humidity is 73%.

Rainfall

In Chatham Hills, during July, the rain falls for 15.5 days and regularly aggregates up to 3.23" (82mm) of precipitation. In Chatham Hills, during the entire year, the rain falls for 155.7 days and collects up to 31.22" (793mm) of precipitation.

Snowfall

In Chatham Hills, 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 the month, sunrise is at 5:44 am and sunset at 8:36 pm. On the last day of July, sunrise is at 6:06 am and sunset at 8:18 pm EDT.

Sunshine

The month with the most sunshine is July, with an average of 10.9h 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 estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during July translates into the following directions:
Inhibit overexposure. Warding off sun damage is of utmost importance. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.

Frequently asked questions

What is the hottest time of year?

Chatham Hills records the warmest temperatures in July, averaging a high of 85.6°F (29.8°C) and a low of 70.7°F (21.5°C).

How hot does it get in July?

In Chatham Hills, 85.6°F (29.8°C) is the average high-temperature and 70.7°F (21.5°C) is the average low-temperature during July. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in July is estimated at 95°F (35°C).

What is the average humidity in July?

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

How many days does it rain in July?

In Chatham Hills, during July, the rain falls for 15.5 days and regularly aggregates up to 3.23" (82mm) of precipitation.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Chatham Hills have in July?

In Chatham Hills, the average day length in July is 14h and 35min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:44 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:18 pm EDT.

What month has the most sunshine?

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

How long on average sun shines in July?

In Chatham Hills, the average sunshine duration in July is 10.9h.

When is the highest UV index?

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

How high is the UV index in July?

In July, the average daily maximum UV index 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
Chatham Hills, MD

Average temperature in July - Chatham Hills, MD
  • Average high temperature in July: 85.6°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in July: 70.7°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in July
Chatham Hills, MD

Average pressure in July - Chatham 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 (29.94"Hg).

Average wind speed in July
Chatham Hills, MD

Average wind speed in July - Chatham Hills, MD
  • Average wind speed in July: 6mph

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in July
Chatham Hills, MD

Average humidity in July - Chatham Hills, MD
  • Average humidity in July: 73%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

Average rainfall in July
Chatham Hills, MD

Average rainfall in July - Chatham Hills, MD
  • Average rainfall in July: 3.23"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in July
Chatham Hills, MD

Average rainfall days in July - Chatham Hills, MD
  • Average rainfall days in July: 15.5 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in July
Chatham Hills, MD

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

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Chatham Hills, MD

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

The month with the highest number of snowfall days is January (4.4 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
Chatham Hills, MD

Average daylight in July / Average sunshine in July - Chatham 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 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 6min).

Average sunshine days in July
Chatham Hills, MD

Average sunshine days in July - Chatham Hills, MD
  • Average sunshine days in July: 13.8 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in July
Chatham Hills, MD

Average UV index in July - Chatham 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
Chatham Hills, MD

Average cloud cover in July - Chatham Hills, MD
  • Average cloud cover in July: 28

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in July
Chatham Hills, MD

Average visibility in July - Chatham Hills, 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).

Chatham Hills, Maryland, USA

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