July weather forecast
Clayton, DE

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Weather in July

July recognized as the pinnacle of summer, sees the highest temperatures, peaking at 84.4°F (29.1°C), and the lowest winds speeds of just 6.1mph (9.8km/h). This underlines the truly calmer nature of the weather in Clayton, Delaware during this month. The increased daylight and UV index result in more vibrant and heated days. Its stark contrast to the cooler tones of the preceding months is evident. Despite its peak temperatures, July does see increased rainfall compared to June, making it a season of contrasts.

Temperature

July, known for its average high temperature of 84.4°F (29.1°C) and an average low temperature of 69.3°F (20.7°C), is the warmest month.

Heat index

July's average heat index is evaluated at a tropical 93.2°F (34°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Factoring in the heat index, values are geared towards shaded areas with light 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 'real feel' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

In Clayton, Delaware, the average relative humidity in July is 77%.

Rainfall

In July, in Clayton, the rain falls for 19 days. Throughout July, 3.62" (92mm) of precipitation is accumulated. In Clayton, during the entire year, the rain falls for 169.2 days and collects up to 34.96" (888mm) of precipitation.

Snowfall

In Clayton, snow does not fall in May through October.

Daylight

In July, the average length of the day is 14h and 37min.
On the first day of the month, sunrise is at 5:40 am and sunset at 8:33 pm. On the last day of July, in Clayton, Delaware, sunrise is at 6:02 am and sunset at 8:15 pm EDT.

Sunshine

July has the most sunshine of the year in Clayton, with an average of 10.7h 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 estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In July, a regular UV index of 6 translates into these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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Frequently asked questions

What is the hottest time of year in Clayton?

In Clayton, July records the average highest temperatures, peaking at 84.4°F (29.1°C) and reaching a low of 69.3°F (20.7°C).

How hot does it get in Clayton in July?

The average high-temperature, in July, in Clayton, is 84.4°F (29.1°C), while the average low-temperature is 69.3°F (20.7°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 93.2°F (34°C).

What is the average humidity in July in Clayton?

The average relative humidity in July in Clayton, Delaware, is 77%.

How many days does it rain in July in Clayton?

In Clayton, Delaware, in July, it is raining for 19 days, with typically 3.62" (92mm) of accumulated precipitation.

When it does not snow in Clayton?

May through October are months without snowfall in Clayton, Delaware.

How many hours of daylight does Clayton have in July?

In Clayton, Delaware, the average day length in July is 14h and 37min.

When are sunrise and sunset in July in Clayton?

On the first day of July in Clayton, Delaware, sunrise is at 5:40 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:15 pm EDT.

What month has the most sunshine in Clayton?

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

How many hours of sunshine does Clayton have in July?

In Clayton, the average sunshine duration in July is 10.7h.

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

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

What is the UV index reading in July in Clayton?

In Clayton, Delaware, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
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
Clayton, DE

Average temperature in July - Clayton, DE
  • Average high temperature in July: 84.4°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (39.2°F).

  • Average low temperature in July: 69.3°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

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Average pressure in July
Clayton, DE

Average pressure in July - Clayton, DE
  • 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
Clayton, DE

Average wind speed in July - Clayton, DE
  • Average wind speed in July: 6.1mph

The windiest months (with the highest average wind speed) are February and March (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in July
Clayton, DE

Average humidity in July - Clayton, DE
  • Average humidity in July: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in July
Clayton, DE

Average rainfall in July - Clayton, DE
  • Average rainfall in July: 3.62"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").

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Average rainfall days in July
Clayton, DE

Average rainfall days in July - Clayton, DE
  • Average rainfall days in July: 19 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.3 days).

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Average snowfall in July
Clayton, DE

Average snowfall in July - Clayton, DE
  • Average snowfall in July: 0"

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

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Average snowfall days in July
Clayton, DE

Average snowfall days in July - Clayton, DE
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (4.5 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
Clayton, DE

Average daylight in July / Average sunshine in July - Clayton, DE
  • 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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Average sunshine days in July
Clayton, DE

Average sunshine days in July - Clayton, DE
  • Average sunshine days in July: 9.5 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (9.5 days).

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Average UV index in July
Clayton, DE

Average UV index in July - Clayton, DE
  • 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
Clayton, DE

Average cloud cover in July - Clayton, DE
  • Average cloud cover in July: 29

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 29).

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Average visibility in July
Clayton, DE

Average visibility in July - Clayton, DE
  • 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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Clayton, Delaware, USA

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