August weather forecast
Rochester, KY

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Weather in August

The last month of the summer, August, is another warm month in Rochester, Kentucky, with an average temperature ranging between min 66.6°F (19.2°C) and max 85.6°F (29.8°C).

Temperature

Rochester's shift into August is marked by a subtle change to a warm 85.6°F (29.8°C) from July's 86.9°F (30.5°C) in temperature. The nighttime temperature, during August, averages of 66.6°F (19.2°C).

Heat index

The heat index for August is estimated at a very hot 96.8°F (36°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The average relative humidity in August is 76%.

Rainfall

In Rochester, in August, during 15.6 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, there are 162.2 rainfall days, and 29.88" (759mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 13h and 33min.
On the first day of August in Rochester, Kentucky, sunrise is at 5:53 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:17 pm CDT.

Sunshine

The months with the most sunshine are June and August, with an average of 10.5h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 6 during August leads to these advisories:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

In August, in Rochester, the average high-temperature is 85.6°F (29.8°C), and the average low-temperature is 66.6°F (19.2°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 96.8°F (36°C).

What is the average humidity in August?

In August, the average relative humidity is 76%.

How many days does it rain in August?

In Rochester, in August, during 15.6 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

In Rochester, the average day length in August is 13h and 33min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 5:53 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:17 pm CDT.

What is the month with the most sunshine?

June and August, with an average of 10.5h of sunshine, are months with the most sunshine.

How many hours of sunshine does Rochester have in August?

In Rochester, the average sunshine duration in August is 10.5h.

When is the highest UV index?

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

What is the UV index reading in August?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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 August
Rochester, KY

Average temperature in August - Rochester, KY
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in August: 66.6°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

Average pressure in August
Rochester, KY

Average pressure in August - Rochester, KY
  • Average pressure in August: 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).

Average wind speed in August
Rochester, KY

Average wind speed in August - Rochester, KY
  • Average wind speed in August: 5.1mph

The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is July (5mph).

Average humidity in August
Rochester, KY

Average humidity in August - Rochester, KY
  • Average humidity in August: 76%

The months with the highest relative humidity are February, March, May and December (79%).
The month with the lowest relative humidity is October (73%).

Average rainfall in August
Rochester, KY

Average rainfall in August - Rochester, KY
  • Average rainfall in August: 2.44"

The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in August
Rochester, KY

Average rainfall days in August - Rochester, KY
  • Average rainfall days in August: 15.6 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is November (10.2 days).

Average snowfall in August
Rochester, KY

Average snowfall in August - Rochester, KY
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Rochester, KY

Average snowfall days in August - Rochester, KY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (3.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Rochester, KY

Average daylight in August / Average sunshine in August - Rochester, KY
  • Average daylight in August: 13h and 3min

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 August: 10h and 3min

The months with the most sunshine are June and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in August
Rochester, KY

Average sunshine days in August - Rochester, KY
  • Average sunshine days in August: 13.1 days

The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in August
Rochester, KY

Average UV index in August - Rochester, KY
  • Average UV index in August: 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).

Average cloud cover in August
Rochester, KY

Average cloud cover in August - Rochester, KY
  • Average cloud cover in August: 28

The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in August
Rochester, KY

Average visibility in August - Rochester, KY
  • Average visibility in August: 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).

Rochester, Kentucky, USA

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