July weather forecast
Arnold, MD

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Weather in July

July, like June, in Arnold, Maryland, is another warm summer month, with an average temperature ranging between min 70.7°F (21.5°C) and max 85.6°F (29.8°C).

Temperature

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

Heat index

The heat index value for July is calculated to be a sweltering 95°F (35°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

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

Rainfall

In Arnold, in July, during 15.5 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. Throughout the year, in Arnold, there are 155.7 rainfall days, and 31.22" (793mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Arnold, Maryland, the average length of the day in July is 14h and 35min.
On the first day of July, sunrise is at 5:44 am and sunset at 8:35 pm. On the last day of the month, 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.

UV index

The months with the highest UV index in Arnold, Maryland, are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 6 in July translates into this advice:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

What is the warmest month in Arnold?

Arnold registers the average highest temperatures during July, with peaks of 85.6°F (29.8°C) and lows of 70.7°F (21.5°C).

How hot is it in Arnold in July?

In July, the average high-temperature and low-temperature are 85.6°F (29.8°C) and 70.7°F (21.5°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, in July is calculated to be 95°F (35°C).

What is the average humidity in July in Arnold?

The average relative humidity in July in Arnold is 73%.

How much does it rain in Arnold in July?

In Arnold, Maryland, in July, during 15.5 rainfall days, 3.23" (82mm) of precipitation is typically accumulated.

When it does not snow in Arnold?

May through October are months without snowfall in Arnold, Maryland.

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

The average day length in July in Arnold is 14h and 35min.

When is the sunrise / sunset in July in Arnold?

In July, on the first day of the month, sunrise is at 5:44 am and sunset at 8:35 pm. On the last day of the month, in Arnold, sunrise is at 6:06 am and sunset at 8:18 pm EDT.

What month has the most sunshine in Arnold?

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

How many hours of sunshine does Arnold have in July?

The average sunshine duration in July is 10.9h.

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

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

What is the UV index reading in July in Arnold?

The average daily maximum UV index in July in Arnold is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to 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
Arnold, MD

Average temperature in July - Arnold, 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
Arnold, MD

Average pressure in July - Arnold, 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
Arnold, MD

Average wind speed in July - Arnold, 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
Arnold, MD

Average humidity in July - Arnold, 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
Arnold, MD

Average rainfall in July - Arnold, 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
Arnold, MD

Average rainfall days in July - Arnold, 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
Arnold, MD

Average snowfall in July - Arnold, 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
Arnold, MD

Average snowfall days in July - Arnold, 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
Arnold, MD

Average daylight in July / Average sunshine in July - Arnold, 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
Arnold, MD

Average sunshine days in July - Arnold, 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
Arnold, MD

Average UV index in July - Arnold, 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
Arnold, MD

Average cloud cover in July - Arnold, 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
Arnold, MD

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

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