July weather forecast
Sylvan Hill, MD

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Weather in July

July, like June, in Sylvan Hill, Maryland, is a moderately hot summer month, with an average temperature fluctuating between 85.6°F (29.8°C) and 68.7°F (20.4°C).

Temperature

The average temperatures reach their apex in July, averaging 85.6°F (29.8°C) at the high end and 68.7°F (20.4°C) at the low end.

Heat index

The average heat index in July is computed to be a very hot 95°F (35°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

With an average relative humidity of 71%, July is the least humid month.

Rainfall

In Sylvan Hill, in July, it is raining for 17.7 days, with typically 3.19" (81mm) of accumulated precipitation. In Sylvan Hill, during the entire year, the rain falls for 165.5 days and collects up to 31.65" (804mm) of precipitation.

Snowfall

In Sylvan Hill, snow does not fall in May through October.

Daylight

In Sylvan Hill, the average length of the day in July is 14h and 37min.
On the first day of the month, sunrise is at 5:44 am and sunset at 8:37 pm. On the last day of July, sunrise is at 6:07 am and sunset at 8:20 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.8h of sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In July, the average maximum UV index of 6 translates into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

What month is the hottest?

Sylvan Hill's July weather, marked by an average high temperature of 85.6°F (29.8°C) and an average low temperature of 68.7°F (20.4°C), is the warmest in the year.

How hot is July?

The high-temperature, in July, in Sylvan Hill, is 85.6°F (29.8°C), while the low-temperature averages to 68.7°F (20.4°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 95°F (35°C).

What is the least humid month?

July is the least humid month, with an average relative humidity of 71%.

What is the average humidity in July?

The average relative humidity in July is 71%.

How much does it rain in July?

In Sylvan Hill, during July, the rain falls for 17.7 days and regularly aggregates up to 3.19" (81mm) of precipitation.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in July?

In Sylvan Hill, the average day length in July is 14h and 37min.

When is the sunrise / sunset in July?

In July, on the first day of the month, sunrise is at 5:44 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 8:20 pm EDT.

What month has the most sunshine?

With an average of 10.8h of sunshine, July has the most sunshine of the year.

How many hours of sunshine does Sylvan Hill have in July?

The average sunshine duration in July in Sylvan Hill, Maryland, is 10.8h.

What is the month with the highest UV index?

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

What is the UV index intensity in July?

The average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Sylvan Hill, MD

Average temperature in July - Sylvan Hill, 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 (38.1°F).

  • Average low temperature in July: 68.7°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in July
Sylvan Hill, MD

Average pressure in July - Sylvan Hill, 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).

Average wind speed in July
Sylvan Hill, MD

Average wind speed in July - Sylvan Hill, MD
  • Average wind speed in July: 5.5mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in July
Sylvan Hill, MD

Average humidity in July - Sylvan Hill, MD
  • Average humidity in July: 71%

The months with the highest relative humidity are May and October (77%).
The month with the lowest relative humidity is July (71%).

Average rainfall in July
Sylvan Hill, MD

Average rainfall in July - Sylvan Hill, MD
  • Average rainfall in July: 3.19"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in July
Sylvan Hill, MD

Average rainfall days in July - Sylvan Hill, MD
  • Average rainfall days in July: 17.7 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.7 days).

Average snowfall in July
Sylvan Hill, MD

Average snowfall in July - Sylvan Hill, MD
  • Average snowfall in July: 0"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Sylvan Hill, MD

Average snowfall days in July - Sylvan Hill, 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
Sylvan Hill, MD

Average daylight in July / Average sunshine in July - Sylvan Hill, 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 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in July
Sylvan Hill, MD

Average sunshine days in July - Sylvan Hill, MD
  • Average sunshine days in July: 11.8 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).

Average UV index in July
Sylvan Hill, MD

Average UV index in July - Sylvan Hill, 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
Sylvan Hill, MD

Average cloud cover in July - Sylvan Hill, 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).

Average visibility in July
Sylvan Hill, MD

Average visibility in July - Sylvan Hill, 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).

Sylvan Hill, Maryland, USA

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