July weather forecast
Nanjemoy, MD

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Weather in July

July in Nanjemoy, Maryland, is a hot summer month, with temperature in the range of an average high of 88.7°F (31.5°C) and an average low of 67.8°F (19.9°C).

Temperature

The average temperatures reach their apex in July, averaging 88.7°F (31.5°C) at the high end and 67.8°F (19.9°C) at the low end.

Heat index

The heat index value during July is estimated at a blisteringly hot 104°F (40°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots 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 'apparent temperature' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. 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

January, April and July, with an average relative humidity of 73%, are the least humid months.

Rainfall

In Nanjemoy, in July, during 15.9 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. In Nanjemoy, during the entire year, the rain falls for 155.6 days and collects up to 31.61" (803mm) of precipitation.

Snowfall

May through October are months without snowfall in Nanjemoy.

Daylight

In Nanjemoy, the average length of the day in July is 14h and 32min.
On the first day of the month, sunrise is at 5:48 am and sunset at 8:36 pm. On the last day of July, in Nanjemoy, sunrise is at 6:10 am and sunset at 8:19 pm EDT.

Sunshine

With an average of 10.5h of sunshine, July has the most sunshine of the year.

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 hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 6 in July transforms into this advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Frequently asked questions

What month is the hottest in Nanjemoy?

Nanjemoy's temperatures peak on average in July, reaching 88.7°F (31.5°C) at their highest and 67.8°F (19.9°C) at their lowest.

How hot does it get in Nanjemoy in July?

An average high-temperature, in July, in Nanjemoy, is 88.7°F (31.5°C) and the average low-temperature is 67.8°F (19.9°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 104°F (40°C).

What are the least humid months in Nanjemoy?

January, April and July, with an average relative humidity of 73%, are the least humid months.

What is the average humidity in July in Nanjemoy?

The average relative humidity in July in Nanjemoy, Maryland, is 73%.

How much does it rain in Nanjemoy in July?

In Nanjemoy, Maryland, in July, during 15.9 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

When it does not snow in Nanjemoy?

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

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

In Nanjemoy, the average day length in July is 14h and 32min.

When is the sunrise / sunset in July in Nanjemoy?

In July, on the first day of the month, sunrise is at 5:48 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:19 pm EDT.

What month has the most sunshine in Nanjemoy?

With an average of 10.5h of sunshine, July has the most sunshine of the year.

How long on average sun shines in July in Nanjemoy?

In Nanjemoy, the average sunshine duration in July is 10.5h.

What are the months with the highest UV index in Nanjemoy?

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 Nanjemoy?

In July, the average daily maximum UV index in Nanjemoy 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
Nanjemoy, MD

Average temperature in July - Nanjemoy, MD
  • Average high temperature in July: 88.7°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in July: 67.8°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

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Average pressure in July
Nanjemoy, MD

Average pressure in July - Nanjemoy, 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 (29.95"Hg).

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Average wind speed in July
Nanjemoy, MD

Average wind speed in July - Nanjemoy, MD
  • Average wind speed in July: 4.8mph

The windiest months (with the highest average wind speed) are March and April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in July
Nanjemoy, MD

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

The months with the highest relative humidity are October and December (78%).
The months with the lowest relative humidity are January, April and July (73%).

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Average rainfall in July
Nanjemoy, MD

Average rainfall in July - Nanjemoy, MD
  • Average rainfall in July: 3.19"

The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.97").

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Average rainfall days in July
Nanjemoy, MD

Average rainfall days in July - Nanjemoy, MD
  • Average rainfall days in July: 15.9 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (8.7 days).

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Average snowfall in July
Nanjemoy, MD

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

The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Nanjemoy, MD

Average snowfall days in July - Nanjemoy, MD
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (4.9 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
Nanjemoy, MD

Average daylight in July / Average sunshine in July - Nanjemoy, MD
  • Average daylight in July: 14h and 3min

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: 10h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

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Average sunshine days in July
Nanjemoy, MD

Average sunshine days in July - Nanjemoy, MD
  • Average sunshine days in July: 12.4 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.5 days).

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Average UV index in July
Nanjemoy, MD

Average UV index in July - Nanjemoy, 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).

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Average cloud cover in July
Nanjemoy, MD

Average cloud cover in July - Nanjemoy, MD
  • Average cloud cover in July: 32

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in July
Nanjemoy, MD

Average visibility in July - Nanjemoy, MD
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

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Nanjemoy, Maryland, USA

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