July weather forecast
Selby Grove, MD

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Weather in July

July, the same as June, is another warm summer month in Selby Grove, Maryland, with temperature in the range of an average low of 70.7°F (21.5°C) and an average high of 85.6°F (29.8°C).

Temperature

July, noted for its average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 70.7°F (21.5°C), is considered the warmest month.

Heat index

The heat index for July is computed to be a fiery hot 95°F (35°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In July, the average relative humidity is 73%.

Rainfall

In Selby Grove, Maryland, in July, it is raining for 15.5 days, with typically 3.23" (82mm) of accumulated precipitation. In Selby Grove, Maryland, during the entire year, the rain falls for 155.7 days and collects up to 31.22" (793mm) of precipitation.

Snowfall

In Selby Grove, snow does not fall in May through October.

Daylight

In July, the average length of the day in Selby Grove is 14h and 36min.
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.

Sunshine

With an average of 10.9h 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 in Selby Grove. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during July leads to these instructions:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

What month is the hottest in Selby Grove?

July stands out as Selby Grove's warmest month, with temperatures ranging between an average high of 85.6°F (29.8°C) and a low of 70.7°F (21.5°C).

How hot does it get in Selby Grove in July?

The average high-temperature, in July, in Selby Grove, is 85.6°F (29.8°C), while the average low-temperature is 70.7°F (21.5°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 95°F (35°C).

What is the average humidity in July in Selby Grove?

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

How much does it rain in Selby Grove in July?

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

When it does not snow in Selby Grove?

May through October are months without snowfall.

How many hours of daylight does Selby Grove have in July?

The average day length in July in Selby Grove is 14h and 36min.

When are sunrise and sunset in July in Selby Grove?

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 Selby Grove?

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

How long on average sun shines in July in Selby Grove?

The average sunshine duration in July in Selby Grove is 10.9h.

What are the months with the highest UV index in Selby Grove?

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

What is the UV index intensity in July in Selby Grove?

The average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health threat 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
Selby Grove, MD

Average temperature in July - Selby Grove, 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
Selby Grove, MD

Average pressure in July - Selby Grove, 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
Selby Grove, MD

Average wind speed in July - Selby Grove, 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
Selby Grove, MD

Average humidity in July - Selby Grove, 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
Selby Grove, MD

Average rainfall in July - Selby Grove, 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
Selby Grove, MD

Average rainfall days in July - Selby Grove, 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
Selby Grove, MD

Average snowfall in July - Selby Grove, 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
Selby Grove, MD

Average snowfall days in July - Selby Grove, 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
Selby Grove, MD

Average daylight in July / Average sunshine in July - Selby Grove, 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
Selby Grove, MD

Average sunshine days in July - Selby Grove, 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
Selby Grove, MD

Average UV index in July - Selby Grove, 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
Selby Grove, MD

Average cloud cover in July - Selby Grove, 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
Selby Grove, MD

Average visibility in July - Selby Grove, 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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Selby Grove, Maryland, USA

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