July weather forecast
Marcus Hook, PA

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Weather in July

July, the same as June, is another warm summer month in Marcus Hook, Pennsylvania, with temperature in the range of an average low of 68.7°F (20.4°C) and an average high of 85.6°F (29.8°C).

Temperature

Marcus Hook, Pennsylvania, experiences its highest average temperatures in July, reaching a peak of 85.6°F (29.8°C) and a minimum of 68.7°F (20.4°C).

Heat index

The average heat index in July is calculated to be a torrid 95°F (35°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

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

Rainfall

In July, the rain falls for 17 days. Throughout July, 2.68" (68mm) of precipitation is accumulated. Throughout the year, there are 148.4 rainfall days, and 25.94" (659mm) of precipitation is accumulated.

Snowfall

In Marcus Hook, snow does not fall in June through October.

Ocean temperature

In Marcus Hook, the average seawater temperature in July is 73.9°F (23.3°C).
Note: Cold sensitivities vary, but with the right amount of sunshine, a gentle breeze, and a warm day, a swim in 73.9°F (23.3°C) waters might be just right. Remember, Olympic swimmers are used to waters between 77°F (25°C) and 82.4°F (28°C).

Daylight

The average length of the day in July in Marcus Hook, Pennsylvania, is 14h and 40min.
On the first day of July, sunrise is at 5:37 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:15 pm EDT.

Sunshine

With an average of 10.7h of sunshine, July has the most sunshine of the year in Marcus Hook, Pennsylvania.

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 risk from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 6 during July morphs into the following directions:
Resist extreme sun exposure. Guarding against solar damage is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
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Frequently asked questions

What part of the year is the hottest in Marcus Hook?

With its average high temperature of 85.6°F (29.8°C) and a low of 68.7°F (20.4°C), July is regarded as the warmest month in Marcus Hook, Pennsylvania.

How hot is July in Marcus Hook?

In Marcus Hook, in July, the average high-temperature is 85.6°F (29.8°C), and the average low-temperature is 68.7°F (20.4°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in July is calculated to be 95°F (35°C).

What is the average humidity in July in Marcus Hook?

In July, the average relative humidity in Marcus Hook, Pennsylvania, is 73%.

How many days does it rain in July in Marcus Hook?

In Marcus Hook, in July, it is raining for 17 days, with typically 2.68" (68mm) of accumulated precipitation.

When it does not snow in Marcus Hook?

In Marcus Hook, snow does not fall in June through October.

How warm is the water in July in Marcus Hook?

In July, the average ocean temperature in Marcus Hook is 73.9°F (23.3°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 73.9°F (23.3°C) water may be enjoyable.

How many hours of daylight does Marcus Hook have in July?

In July, the average day length in Marcus Hook is 14h and 40min.

What time are sunrise and sunset in July in Marcus Hook?

In July, on the first day of the month, sunrise is at 5:37 am and sunset at 8:33 pm. On the last day of the month, in Marcus Hook, Pennsylvania, sunrise is at 6:00 am and sunset at 8:15 pm EDT.

What month has the most sunshine in Marcus Hook?

The month with the most sunshine in Marcus Hook is July, with an average of 10.7h of sunshine.

How many hours of sunshine does Marcus Hook have in July?

In Marcus Hook, Pennsylvania, the average sunshine duration in July is 10.7h.

What are the months with the highest UV index in Marcus Hook?

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

What is the UV index intensity in July in Marcus Hook?

The average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJulyASOND
Jun
July
Aug
Average high temperature
79.7°F 26.5°C
85.6°F 29.8°C
83.5°F 28.6°C
Average low temperature
63.1°F 17.3°C
68.7°F 20.4°C
67.3°F 19.6°C
Average pressure
29.94" 760mmHg
29.96" 761mmHg
29.99" 762mmHg
Average wind speed
6.3mph 10.1km/h
5.5mph 8.9km/h
5.5mph 8.9km/h
Average max. wind speed
6.9mph 11.1km/h
6.1mph 9.8km/h
6mph 9.7km/h
Average wind speed gusts
9.4mph 15.1km/h
8.2mph 13.2km/h
8mph 12.9km/h
Average humidity
75%
73%
73%
Average rainfall
2.28" 58mm
2.68" 68mm
3.11" 79mm
Average rainfall days
15.4
17
16.1
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0
0
0
Average sea temperature
66.3°F 19.1°C
74°F 23.3°C
75.9°F 24.4°C
Average daylight
14h 5min
14h 4min
13h 4min
Average sunshine
10h 1min
10h 4min
10h 2min
Average sunshine days
12.5
11.3
12.5
Average UV index
6
6
6
Average cloud cover
36%
30%
32%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in July
Marcus Hook, PA

Average temperature in July - Marcus Hook, PA
  • 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 (37.4°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 (25.7°F).

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Average pressure in July
Marcus Hook, PA

Average pressure in July - Marcus Hook, PA
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in July
Marcus Hook, PA

Average wind speed in July - Marcus Hook, PA
  • Average wind speed in July: 5.5mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in July
Marcus Hook, PA

Average humidity in July - Marcus Hook, PA
  • Average humidity in July: 73%

The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in July
Marcus Hook, PA

Average rainfall in July - Marcus Hook, PA
  • Average rainfall in July: 2.68"

The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.61").

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Average rainfall days in July
Marcus Hook, PA

Average rainfall days in July - Marcus Hook, PA
  • Average rainfall days in July: 17 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.1 days).

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Average snowfall in July
Marcus Hook, PA

Average snowfall in July - Marcus Hook, PA
  • Average snowfall in July: 0"

The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in July
Marcus Hook, PA

Average snowfall days in July - Marcus Hook, PA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average sea temperature in July
Marcus Hook, PA

Average sea temperature in July - Marcus Hook, PA
  • Average sea temperature in July: 74°F

The best month for swimming (with the highest average sea temperature) is August (75.9°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

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Average daylight in July /
Average sunshine in July
Marcus Hook, PA

Average daylight in July / Average sunshine in July - Marcus Hook, PA
  • 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 24min).

  • Average sunshine in July: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in July
Marcus Hook, PA

Average sunshine days in July - Marcus Hook, PA
  • Average sunshine days in July: 11.3 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in July
Marcus Hook, PA

Average UV index in July - Marcus Hook, PA
  • 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).

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Average cloud cover in July
Marcus Hook, PA

Average cloud cover in July - Marcus Hook, PA
  • Average cloud cover in July: 30

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in July
Marcus Hook, PA

Average visibility in July - Marcus Hook, PA
  • 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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Marcus Hook, Pennsylvania, USA

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