July weather forecast
New Derry, PA

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Weather in July

July, the same as June, is a moderately hot summer month in New Derry, Pennsylvania, with an average temperature ranging between max 81.7°F (27.6°C) and min 60.3°F (15.7°C).

Temperature

In New Derry, July is identified by the highest average temperatures, reaching a peak of 81.7°F (27.6°C) and a low of 60.3°F (15.7°C).

Heat index

Throughout July, the heat index is calculated to be a tropical 87.8°F (31°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. 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 particularly relevant to children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

April, June through August, with an average relative humidity of 78%, are the least humid months.

Rainfall

In New Derry, in July, it is raining for 17.8 days, with typically 2.36" (60mm) of accumulated precipitation. In New Derry, during the entire year, the rain falls for 173.8 days and collects up to 25.55" (649mm) of precipitation.

Snowfall

In New Derry, snow does not fall in May through September.

Daylight

In New Derry, Pennsylvania, the average length of the day in July is 14h and 43min.
On the first day of the month, sunrise is at 5:51 am and sunset at 8:51 pm. On the last day of July, sunrise is at 6:14 am and sunset at 8:32 pm EDT.

Sunshine

In New Derry, Pennsylvania, the average sunshine in July is 10h.

UV index

The months with the highest UV index in New Derry are June and July, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 6 during July, leads to the following recommendations:
Deflect overexposure. Sun protection is a necessity. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

What part of the year is the hottest in New Derry?

July temperatures tend to peak at an average high of 81.7°F (27.6°C) and dip to a low of 60.3°F (15.7°C).

What is the usual temperature for New Derry in July?

The high-temperature during July is 81.7°F (27.6°C) and the low-temperature is 60.3°F (15.7°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in July is calculated to be 87.8°F (31°C).

What is the least humid month in New Derry?

The months with the lowest humidity in New Derry, Pennsylvania, are April, June through August, with an average relative humidity of 78%.

What is the average humidity in July in New Derry?

The average relative humidity in July in New Derry, Pennsylvania, is 78%.

How much does it rain in New Derry in July?

In July, in New Derry, the rain falls for 17.8 days. Throughout July, 2.36" (60mm) of precipitation is accumulated.

When it does not snow in New Derry?

May through September are months without snowfall in New Derry.

How many hours of daylight does New Derry have in July?

In New Derry, Pennsylvania, the average day length in July is 14h and 43min.

What time are sunrise and sunset in July in New Derry?

On the first day of July in New Derry, sunrise is at 5:51 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:32 pm EDT.

How long on average sun shines in July in New Derry?

In New Derry, the average sunshine duration in July is 10h.

What are the months with the highest UV index in New Derry?

The months with the highest UV index are June and July, with an average maximum UV index of 6.

How high is the UV index in July in New Derry?

In New Derry, Pennsylvania, the average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high health risk from 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
New Derry, PA

Average temperature in July - New Derry, PA
  • Average high temperature in July: 81.7°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in July: 60.3°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

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Average pressure in July
New Derry, PA

Average pressure in July - New Derry, PA
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in July
New Derry, PA

Average wind speed in July - New Derry, PA
  • Average wind speed in July: 5mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in July
New Derry, PA

Average humidity in July - New Derry, PA
  • Average humidity in July: 78%

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, June, July and August (78%).

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Average rainfall in July
New Derry, PA

Average rainfall in July - New Derry, PA
  • Average rainfall in July: 2.36"

The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is November (1.38").

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Average rainfall days in July
New Derry, PA

Average rainfall days in July - New Derry, PA
  • Average rainfall days in July: 17.8 days

The month with the highest number of rainy days is May (20.4 days).
The month with the least rainy days is January (9.5 days).

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Average snowfall in July
New Derry, PA

Average snowfall in July - New Derry, PA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (4.96").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
New Derry, PA

Average snowfall days in July - New Derry, PA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
New Derry, PA

Average daylight in July / Average sunshine in July - New Derry, PA
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in July: 10h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in July
New Derry, PA

Average sunshine days in July - New Derry, PA
  • Average sunshine days in July: 11.3 days

The month with the most sunshine days is November (14.4 days).
The month with the least sunshine days is January (7 days).

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Average UV index in July
New Derry, PA

Average UV index in July - New Derry, PA
  • Average UV index in July: 6

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in July
New Derry, PA

Average cloud cover in July - New Derry, PA
  • Average cloud cover in July: 37

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in July
New Derry, PA

Average visibility in July - New Derry, PA
  • Average visibility in July: 5mi

The month with the highest visibility is April (6mi).
The month with the lowest visibility is January (4mi).

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New Derry, Pennsylvania, USA

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