July weather forecast
Mount Joy, PA

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Weather in July

July, like June, in Mount Joy, Pennsylvania, is another warm summer month, with an average temperature ranging between max 82.8°F (28.2°C) and min 64°F (17.8°C).

Temperature

Mount Joy witnesses the warmest weather in July, with temperatures averaging a high of 82.8°F (28.2°C) and a low of 64°F (17.8°C).

Heat index

The heat index value during July is estimated at a hot 89.6°F (32°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

In Mount Joy, the average relative humidity in July is 78%.

Rainfall

In July, the rain falls for 15.3 days. Throughout July, 1.77" (45mm) of precipitation is accumulated. In Mount Joy, during the entire year, the rain falls for 132.7 days and collects up to 15.35" (390mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in July in Mount Joy is 14h and 41min.
On the first day of the month, sunrise is at 5:40 am and sunset at 8:39 pm. On the last day of July, in Mount Joy, sunrise is at 6:03 am and sunset at 8:20 pm EDT.

Sunshine

With an average of 10.6h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 6 during July translates into the following guidance:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

What is the hottest time of year?

With average high temperatures of 82.8°F (28.2°C) and lows of 64°F (17.8°C), July is the warmest month.

Is it hot during July?

The average high-temperature and low-temperature during July are 82.8°F (28.2°C) and 64°F (17.8°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in July is estimated at 89.6°F (32°C).

What is the average humidity in July?

In July, the average relative humidity is 78%.

How much does it rain in July?

In July, in Mount Joy, Pennsylvania, the rain falls for 15.3 days. Throughout July, 1.77" (45mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in July?

In Mount Joy, the average day length in July is 14h and 41min.

When are sunrise and sunset in July in Mount Joy?

In July, on the first day of the month, sunrise is at 5:40 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:20 pm EDT.

What month has the most sunshine in Mount Joy?

July has the most sunshine of the year, with an average of 10.6h of sunshine.

How many hours of sunshine does Mount Joy have in July?

In July, the average sunshine duration in Mount Joy is 10.6h.

When is the highest UV index?

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

What is the UV index reading in July in Mount Joy?

In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
Mount Joy, PA

Average temperature in July - Mount Joy, PA
  • Average high temperature in July: 82.8°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in July: 64°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in July
Mount Joy, PA

Average pressure in July - Mount Joy, PA
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in July
Mount Joy, PA

Average wind speed in July - Mount Joy, PA
  • Average wind speed in July: 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 (4.9mph).

Average humidity in July
Mount Joy, PA

Average humidity in July - Mount Joy, PA
  • Average humidity in July: 78%

The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are March and April (76%).

Average rainfall in July
Mount Joy, PA

Average rainfall in July - Mount Joy, PA
  • Average rainfall in July: 1.77"

The wettest month (with the highest rainfall) is August (1.97").
The driest month (with the least rainfall) is September (0.91").

Average rainfall days in July
Mount Joy, PA

Average rainfall days in July - Mount Joy, PA
  • Average rainfall days in July: 15.3 days

The month with the highest number of rainy days is May (15.7 days).
The months with the least rainy days are January and November (6.6 days).

Average snowfall in July
Mount Joy, PA

Average snowfall in July - Mount Joy, PA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Mount Joy, PA

Average snowfall days in July - Mount Joy, PA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Mount Joy, PA

Average daylight in July / Average sunshine in July - Mount Joy, 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in July
Mount Joy, PA

Average sunshine days in July - Mount Joy, PA
  • Average sunshine days in July: 11.8 days

The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in July
Mount Joy, PA

Average UV index in July - Mount Joy, PA
  • Average UV index in July: 6

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in July
Mount Joy, PA

Average cloud cover in July - Mount Joy, PA
  • Average cloud cover in July: 31

The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in July
Mount Joy, PA

Average visibility in July - Mount Joy, PA
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

Mount Joy, Pennsylvania, USA

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