July weather forecast
Nanjemoy, MD

Share

Weather in July

July in Nanjemoy, Maryland, is a hot summer month, with an average temperature varying between 67.8°F (19.9°C) and 88.7°F (31.5°C).

Temperature

July registers as the month with the highest average temperatures, reaching 88.7°F (31.5°C) at its peak and 67.8°F (19.9°C) at the lowest.

Heat index

In July, the heat index is estimated at an extremely hot 104°F (40°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Heat index determinations are made taking into account the shade and light air movements. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

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. Throughout the year, there are 155.6 rainfall days, and 31.61" (803mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In July, the average length of the day is 14h and 32min.
On the first day of July, 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.

Sunshine

July has the most sunshine of the year, with an average of 10.5h 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 health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 6 during July morphs into the following directions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

July is the warmest month, with the temperature often reaching an average high of 88.7°F (31.5°C) and an average low of 67.8°F (19.9°C).

How hot does it get in July?

The high-temperature during July is 88.7°F (31.5°C) and the low-temperature is 67.8°F (19.9°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 104°F (40°C).

What are the least humid months?

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

What is the average humidity in July?

In July, the average relative humidity is 73%.

How much does it rain in July?

In July, in Nanjemoy, the rain falls for 15.9 days. Throughout July, 3.19" (81mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Nanjemoy have in July?

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

When is the sunrise / sunset in July?

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?

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

How many hours of sunshine does Nanjemoy have in July?

In July, the average sunshine duration is 10.5h.

When is the highest UV index?

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

What is the UV index reading in July?

In July, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Nanjemoy, Maryland, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location