July weather forecast
Lanham, MD

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Weather in July

July is a hot summer month in Lanham, Maryland, with an average temperature varying between 70°F (21.1°C) and 87.4°F (30.8°C).

Temperature

Lanham notes the warmest temperatures in July, with a high average of 87.4°F (30.8°C) and a low of 70°F (21.1°C).

Heat index

Throughout July, the heat index is evaluated at a very hot 98.6°F (37°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

April and July, with an average relative humidity of 71%, are the least humid months in Lanham.

Rainfall

In Lanham, in July, during 16.8 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, there are 157.9 rainfall days, and 31.14" (791mm) of precipitation is accumulated.

Snowfall

May through November are months without snowfall.

Daylight

In July, the average length of the day is 14h and 35min.
On the first day of the month, sunrise is at 5:45 am and sunset at 8:36 pm. On the last day of July, in Lanham, sunrise is at 6:08 am and sunset at 8:19 pm EDT.

Sunshine

July has the most sunshine of the year in Lanham, 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 value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In July, the UV index of 6 transforms into the following advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

What is the warmest month in Lanham?

Lanham's temperatures peak on average in July, reaching 87.4°F (30.8°C) at their highest and 70°F (21.1°C) at their lowest.

Is it hot in Lanham during July?

The average high-temperature, in July, in Lanham, is 87.4°F (30.8°C), while the average low-temperature is 70°F (21.1°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in July is evaluated at 98.6°F (37°C).

What is the least humid month in Lanham?

The months with the lowest humidity in Lanham, Maryland, are April and July, with an average relative humidity of 71%.

What is the average humidity in July in Lanham?

The average relative humidity in July in Lanham, Maryland, is 71%.

How many days does it rain in July in Lanham?

In July, in Lanham, Maryland, the rain falls for 16.8 days. Throughout July, 3.11" (79mm) of precipitation is accumulated.

When it does not snow in Lanham?

May through November are months without snowfall in Lanham.

How many hours of daylight does Lanham have in July?

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

When is the sunrise / sunset in July in Lanham?

In July, on the first day of the month, sunrise is at 5:45 am and sunset at 8:36 pm. On the last day of the month, in Lanham, Maryland, sunrise is at 6:08 am and sunset at 8:19 pm EDT.

What month has the most sunshine in Lanham?

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

How long on average sun shines in July in Lanham?

The average sunshine duration in July in Lanham, Maryland, is 10.9h.

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

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

What is the UV index intensity in July in Lanham?

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 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
Lanham, MD

Average temperature in July - Lanham, MD
  • Average high temperature in July: 87.4°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in July: 70°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in July
Lanham, MD

Average pressure in July - Lanham, 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
Lanham, MD

Average wind speed in July - Lanham, MD
  • Average wind speed in July: 5.4mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in July
Lanham, MD

Average humidity in July - Lanham, MD
  • Average humidity in July: 71%

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

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Average rainfall in July
Lanham, MD

Average rainfall in July - Lanham, MD
  • Average rainfall in July: 3.11"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").

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Average rainfall days in July
Lanham, MD

Average rainfall days in July - Lanham, MD
  • Average rainfall days in July: 16.8 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).

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Average snowfall in July
Lanham, MD

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

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September, October and November (0").

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Average snowfall days in July
Lanham, MD

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

The month with the highest number of snowfall days is January (4.1 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
Lanham, MD

Average daylight in July / Average sunshine in July - Lanham, 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 0min).

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Average sunshine days in July
Lanham, MD

Average sunshine days in July - Lanham, MD
  • Average sunshine days in July: 12 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in July
Lanham, MD

Average UV index in July - Lanham, 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 and December (UV index 2).

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Average cloud cover in July
Lanham, MD

Average cloud cover in July - Lanham, MD
  • Average cloud cover in July: 29

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in July
Lanham, MD

Average visibility in July - Lanham, 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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Lanham, Maryland, USA

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