July weather forecast
Willowbrook, MD

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Weather in July

July, the same as June, is another warm summer month in Willowbrook, Maryland, with temperature in the range of an average high of 85.6°F (29.8°C) and an average low of 70.7°F (21.5°C).

Temperature

July is the warmest month, with an average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 70.7°F (21.5°C).

Heat index

During July, the heat index is calculated to be a sweltering 95°F (35°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. 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

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

Rainfall

In Willowbrook, Maryland, in July, during 15.5 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. In Willowbrook, during the entire year, the rain falls for 155.7 days and collects up to 31.22" (793mm) of precipitation.

Snowfall

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

Daylight

In July, the average length of the day is 14h and 36min.
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 in Willowbrook is July, with an average of 10.9h of sunshine.

UV index

The months with the highest UV index in Willowbrook are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 6 during July leads to these instructions:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

What is the warmest month in Willowbrook?

July tends to be the warmest month, with temperatures averaging a daily high of 85.6°F (29.8°C) and a low of 70.7°F (21.5°C).

How hot does it get in Willowbrook in July?

In Willowbrook, in July, the average high-temperature is 85.6°F (29.8°C), and the average low-temperature is 70.7°F (21.5°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 95°F (35°C).

What is the average humidity in July in Willowbrook?

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

How much does it rain in Willowbrook in July?

In Willowbrook, in July, it is raining for 15.5 days, with typically 3.23" (82mm) of accumulated precipitation.

When it does not snow in Willowbrook?

In Willowbrook, Maryland, snow does not fall in May through October.

What is the average length of the day in July in Willowbrook?

The average day length in July in Willowbrook is 14h and 36min.

What time are sunrise and sunset in July in Willowbrook?

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 in Willowbrook?

July has the most sunshine of the year, with an average of 10.9h of sunshine.

How long on average sun shines in July in Willowbrook?

In July, the average sunshine duration in Willowbrook, Maryland, is 10.9h.

What is the month with the highest UV index in Willowbrook?

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 Willowbrook?

In July, the average daily maximum UV index in Willowbrook is 6. A UV Index value of 6 to 7 symbolizes 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
Willowbrook, MD

Average temperature in July - Willowbrook, 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).

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Average pressure in July
Willowbrook, MD

Average pressure in July - Willowbrook, 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).

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Average wind speed in July
Willowbrook, MD

Average wind speed in July - Willowbrook, 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).

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Average humidity in July
Willowbrook, MD

Average humidity in July - Willowbrook, 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%).

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Average rainfall in July
Willowbrook, MD

Average rainfall in July - Willowbrook, 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").

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Average rainfall days in July
Willowbrook, MD

Average rainfall days in July - Willowbrook, 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).

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Average snowfall in July
Willowbrook, MD

Average snowfall in July - Willowbrook, 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").

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Average snowfall days in July
Willowbrook, MD

Average snowfall days in July - Willowbrook, 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).

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Average daylight in July /
Average sunshine in July
Willowbrook, MD

Average daylight in July / Average sunshine in July - Willowbrook, 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).

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Average sunshine days in July
Willowbrook, MD

Average sunshine days in July - Willowbrook, 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).

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Average UV index in July
Willowbrook, MD

Average UV index in July - Willowbrook, 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).

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Average cloud cover in July
Willowbrook, MD

Average cloud cover in July - Willowbrook, 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).

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Average visibility in July
Willowbrook, MD

Average visibility in July - Willowbrook, 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).

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Willowbrook, Maryland, USA

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