July weather forecast
Jeffersontown, KY

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Weather in July

July showcases the peak of summer in Jeffersontown, with the highest temperature reaching 86.5°F (30.3°C) and the lows around 67.6°F (19.8°C). It also brings with it the highest ultraviolet index of 6, necessitating protective measures for outdoor activities. Despite the heat, the numerous summer events and activities remain undeterred. Evenings often bring residents outdoors to enjoy the lengthy daylight and warm breeze.

Temperature

July tends to be the warmest month, with temperatures averaging a daily high of 86.5°F (30.3°C) and a low of 67.6°F (19.8°C).

Heat index

For most parts of July, the heat index is estimated at a sweltering 98.6°F (37°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In Jeffersontown, the average relative humidity in July is 74%.

Rainfall

In Jeffersontown, during July, the rain falls for 14.9 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Jeffersontown, during the entire year, the rain falls for 140.3 days and collects up to 18.31" (465mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Jeffersontown, the average length of the day in July is 14h and 31min.
On the first day of July, sunrise is at 6:23 am and sunset at 9:09 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 8:52 pm EDT.

Sunshine

In Jeffersontown, the average sunshine in July is 10.3h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In July, the maximum UV index of 6 translates into these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest in Jeffersontown?

Jeffersontown's July weather, marked by an average high temperature of 86.5°F (30.3°C) and an average low temperature of 67.6°F (19.8°C), is the warmest in the year.

How hot does it get in July?

In July, in Jeffersontown, the average high-temperature is 86.5°F (30.3°C), and the average low-temperature is 67.6°F (19.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 98.6°F (37°C).

What is the average humidity in July?

In July, the average relative humidity is 74%.

How many days does it rain in July?

In Jeffersontown, in July, it is raining for 14.9 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in July in Jeffersontown?

The average day length in July is 14h and 31min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 6:23 am and sunset at 9:09 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 8:52 pm EDT.

How many hours of sunshine does Jeffersontown have in July?

In July, the average sunshine duration is 10.3h.

What are the months with the highest UV index?

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

How high is the UV index in July?

The average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes 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
Jeffersontown, KY

Average temperature in July - Jeffersontown, KY
  • Average high temperature in July: 86.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in July: 67.6°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in July
Jeffersontown, KY

Average pressure in July - Jeffersontown, KY
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in July
Jeffersontown, KY

Average wind speed in July - Jeffersontown, KY
  • Average wind speed in July: 4.9mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).

Average humidity in July
Jeffersontown, KY

Average humidity in July - Jeffersontown, KY
  • Average humidity in July: 74%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (73%).

Average rainfall in July
Jeffersontown, KY

Average rainfall in July - Jeffersontown, KY
  • Average rainfall in July: 1.93"

The wettest months (with the highest rainfall) are April and May (2.05").
The driest month (with the least rainfall) is September (0.87").

Average rainfall days in July
Jeffersontown, KY

Average rainfall days in July - Jeffersontown, KY
  • Average rainfall days in July: 14.9 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.4 days).

Average snowfall in July
Jeffersontown, KY

Average snowfall in July - Jeffersontown, KY
  • Average snowfall in July: 0"

The month with the highest snowfall is February (0.67").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Jeffersontown, KY

Average snowfall days in July - Jeffersontown, KY
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (5.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Jeffersontown, KY

Average daylight in July / Average sunshine in July - Jeffersontown, KY
  • Average daylight in July: 14h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).

Average sunshine days in July
Jeffersontown, KY

Average sunshine days in July - Jeffersontown, KY
  • Average sunshine days in July: 13.2 days

The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in July
Jeffersontown, KY

Average UV index in July - Jeffersontown, KY
  • Average UV index in July: 6

The months with the highest UV index are 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
Jeffersontown, KY

Average cloud cover in July - Jeffersontown, KY
  • Average cloud cover in July: 32

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in July
Jeffersontown, KY

Average visibility in July - Jeffersontown, KY
  • Average visibility in July: 6mi

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

Jeffersontown, Kentucky, USA

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