July weather forecast
Harpers Mill, MD

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Weather in July

July, the same as June, is a moderately hot summer month in Harpers Mill, Maryland, with an average temperature fluctuating between 85.5°F (29.7°C) and 70.3°F (21.3°C).

Temperature

With an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 70.3°F (21.3°C), July is the warmest month.

Heat index

The average heat index in July is estimated at a torrid 95°F (35°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The months with the lowest humidity are March, April and July, with an average relative humidity of 72%.

Rainfall

In Harpers Mill, in July, during 16.9 rainfall days, 3.62" (92mm) of precipitation is typically accumulated. Throughout the year, in Harpers Mill, Maryland, there are 157.2 rainfall days, and 30.47" (774mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Harpers Mill.

Daylight

The average length of the day in July 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

With an average of 10.9h of sunshine, July has the most sunshine of the year in Harpers Mill.

UV index

The months with the highest UV index in Harpers Mill, Maryland, are May through August, with an average maximum UV index of 6. 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: In July, the maximum UV index of 6 transforms into these recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

What is the hottest time of year in Harpers Mill?

With its average high temperature of 85.5°F (29.7°C) and a low of 70.3°F (21.3°C), July is regarded as the warmest month in Harpers Mill, Maryland.

How hot does it get in Harpers Mill in July?

During July, Harpers Mill experiences an average high-temperature of 85.5°F (29.7°C) and a low-temperature of 70.3°F (21.3°C). In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is estimated at 95°F (35°C).

What is the least humid month in Harpers Mill?

The months with the lowest humidity are March, April and July, with an average relative humidity of 72%.

What is the average humidity in July in Harpers Mill?

The average relative humidity in July is 72%.

How much does it rain in Harpers Mill in July?

In July, in Harpers Mill, the rain falls for 16.9 days. Throughout July, 3.62" (92mm) of precipitation is accumulated.

When it does not snow in Harpers Mill?

In Harpers Mill, Maryland, snow does not fall in April through October.

What is the average length of the day in July in Harpers Mill?

In July, the average day length in Harpers Mill, Maryland, is 14h and 36min.

When are sunrise and sunset in July in Harpers Mill?

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 Harpers Mill?

The month with the most sunshine in Harpers Mill, Maryland, is July, with an average of 10.9h of sunshine.

How long on average sun shines in July in Harpers Mill?

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

What is the month with the highest UV index in Harpers Mill?

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

How high is the UV index in July in Harpers Mill?

The average daily maximum UV index in July in Harpers Mill is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's 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
Harpers Mill, MD

Average temperature in July - Harpers Mill, MD
  • Average high temperature in July: 85.5°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in July: 70.3°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in July
Harpers Mill, MD

Average pressure in July - Harpers Mill, 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
Harpers Mill, MD

Average wind speed in July - Harpers Mill, MD
  • Average wind speed in July: 5.8mph

The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in July
Harpers Mill, MD

Average humidity in July - Harpers Mill, MD
  • Average humidity in July: 72%

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

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Average rainfall in July
Harpers Mill, MD

Average rainfall in July - Harpers Mill, MD
  • Average rainfall in July: 3.62"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.81").

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Average rainfall days in July
Harpers Mill, MD

Average rainfall days in July - Harpers Mill, MD
  • Average rainfall days in July: 16.9 days

The month with the highest number of rainy days is May (18 days).
The months with the least rainy days are January and November (8.4 days).

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Average snowfall in July
Harpers Mill, MD

Average snowfall in July - Harpers Mill, MD
  • Average snowfall in July: 0"

The month with the highest snowfall is January (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in July
Harpers Mill, MD

Average snowfall days in July - Harpers Mill, MD
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in July /
Average sunshine in July
Harpers Mill, MD

Average daylight in July / Average sunshine in July - Harpers Mill, 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
Harpers Mill, MD

Average sunshine days in July - Harpers Mill, MD
  • Average sunshine days in July: 10.8 days

The month with the most sunshine days is November (19.9 days).
The months with the least sunshine days are May and July (10.8 days).

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Average UV index in July
Harpers Mill, MD

Average UV index in July - Harpers Mill, 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
Harpers Mill, MD

Average cloud cover in July - Harpers Mill, 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).

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Average visibility in July
Harpers Mill, MD

Average visibility in July - Harpers Mill, 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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Harpers Mill, Maryland, USA

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