July weather forecast
Jamestown, KY

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Weather in July

July in Jamestown, Kentucky, is a tropical summer month, with temperature in the range of an average low of 66°F (18.9°C) and an average high of 86.2°F (30.1°C).

Temperature

July, characterized by an average high temperature of 86.2°F (30.1°C) and a low temperature of 66°F (18.9°C), is generally the warmest month.

Heat index

July's mean heat index is calculated to be a very hot 98.6°F (37°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. 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 'real feel' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

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

Rainfall

In Jamestown, during July, the rain falls for 18.6 days and regularly aggregates up to 3.98" (101mm) of precipitation. In Jamestown, during the entire year, the rain falls for 178.7 days and collects up to 40.87" (1038mm) of precipitation.

Snowfall

In Jamestown, snow does not fall in May through September.

Daylight

In July, the average length of the day is 14h and 25min.
On the first day of the month, sunrise is at 5:24 am and sunset at 8:03 pm. On the last day of July, sunrise is at 5:45 am and sunset at 7:47 pm CDT.

Sunshine

In Jamestown, the average sunshine in July is 10.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Jamestown. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 6 during July, leads to the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

What time of the year is the hottest in Jamestown?

In Jamestown, July is the warmest month, with temperatures averaging a high of 86.2°F (30.1°C) and a low of 66°F (18.9°C).

Is it hot in Jamestown during July?

The average high-temperature and low-temperature in Jamestown, Kentucky, during July are 86.2°F (30.1°C) and 66°F (18.9°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in July is calculated to be 98.6°F (37°C).

What is the average humidity in July in Jamestown?

The average relative humidity in July in Jamestown is 77%.

How much does it rain in Jamestown in July?

In Jamestown, Kentucky, in July, it is raining for 18.6 days, with typically 3.98" (101mm) of accumulated precipitation.

When it does not snow in Jamestown?

May through September are months without snowfall.

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

In Jamestown, Kentucky, the average day length in July is 14h and 25min.

When is the sunrise / sunset in July in Jamestown?

On the first day of July in Jamestown, sunrise is at 5:24 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 7:47 pm CDT.

How many hours of sunshine does Jamestown have in July?

In Jamestown, the average sunshine duration in July is 10.1h.

What are the months with the highest UV index in Jamestown?

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

What is the UV index reading in July in Jamestown?

In Jamestown, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health threat 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
Jamestown, KY

Average temperature in July - Jamestown, KY
  • Average high temperature in July: 86.2°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in July: 66°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

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Average pressure in July
Jamestown, KY

Average pressure in July - Jamestown, KY
  • Average pressure in July: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in July
Jamestown, KY

Average wind speed in July - Jamestown, KY
  • Average wind speed in July: 4.7mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in July
Jamestown, KY

Average humidity in July - Jamestown, KY
  • Average humidity in July: 77%

The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are April, June, August, September, October and November (76%).

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Average rainfall in July
Jamestown, KY

Average rainfall in July - Jamestown, KY
  • Average rainfall in July: 3.98"

The wettest month (with the highest rainfall) is February (4.25").
The driest month (with the least rainfall) is September (2.4").

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Average rainfall days in July
Jamestown, KY

Average rainfall days in July - Jamestown, KY
  • Average rainfall days in July: 18.6 days

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (11.8 days).

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Average snowfall in July
Jamestown, KY

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

The months with the highest snowfall are January and February (2.91").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Jamestown, KY

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

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Jamestown, KY
  • Average daylight in July: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in July: 10h and 1min

The months with the most sunshine are June and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

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Average sunshine days in July
Jamestown, KY

Average sunshine days in July - Jamestown, KY
  • Average sunshine days in July: 10.6 days

The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is February (9.6 days).

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Average UV index in July
Jamestown, KY

Average UV index in July - Jamestown, KY
  • 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 and December (UV index 2).

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Average cloud cover in July
Jamestown, KY

Average cloud cover in July - Jamestown, KY
  • Average cloud cover in July: 35

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in July
Jamestown, KY

Average visibility in July - Jamestown, KY
  • Average visibility in July: 5mi

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

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Jamestown, Kentucky, USA

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