August weather forecast
Rockville, IN

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Weather in August

The last month of the summer, August, is another warm month in Rockville, Indiana, with an average temperature ranging between max 81.1°F (27.3°C) and min 63.7°F (17.6°C).

Temperature

Rockville observes an average high-temperature of a still warm 81.1°F (27.3°C) in August, barely different from 82°F (27.8°C) in July. In August, the average low-temperature records at a refreshing 63.7°F (17.6°C) during the nights.

Heat index

The average heat index in August is computed to be a tropical 87.8°F (31°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of 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 hold particular importance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

In Rockville, the average relative humidity in August is 82%.

Rainfall

In Rockville, during August, the rain falls for 12.3 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, there are 138.6 rainfall days, and 19.09" (485mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Rockville.

Daylight

The average length of the day in August in Rockville, Indiana, is 13h and 41min.
On the first day of August, sunrise is at 6:48 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 8:21 pm EDT.

Sunshine

The average sunshine in August is 9.3h.

UV index

The months with the highest UV index in Rockville are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What is the usual temperature for Rockville in August?

The average high-temperature, in August, in Rockville, is 81.1°F (27.3°C), while the average low-temperature is 63.7°F (17.6°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 87.8°F (31°C).

What is the average humidity in August in Rockville?

In August, the average relative humidity in Rockville is 82%.

How much does it rain in Rockville in August?

In Rockville, Indiana, during August, the rain falls for 12.3 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow in Rockville?

In Rockville, Indiana, snow does not fall in May through September.

How many hours of daylight does Rockville have in August?

In August, the average day length in Rockville is 13h and 41min.

What time are sunrise and sunset in August in Rockville?

In August, on the first day of the month, sunrise is at 6:48 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 8:21 pm EDT.

How long on average sun shines in August in Rockville?

The average sunshine duration in August in Rockville, Indiana, is 9.3h.

When is the highest UV index in Rockville?

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

How high is the UV index in August in Rockville?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes 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 August
Rockville, IN

Average temperature in August - Rockville, IN
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in August: 63.7°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure in August
Rockville, IN

Average pressure in August - Rockville, IN
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Rockville, IN

Average wind speed in August - Rockville, IN
  • Average wind speed in August: 6mph

The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in August
Rockville, IN

Average humidity in August - Rockville, IN
  • Average humidity in August: 82%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in August
Rockville, IN

Average rainfall in August - Rockville, IN
  • Average rainfall in August: 1.5"

The wettest months (with the highest rainfall) are April and May (2.52").
The driest month (with the least rainfall) is February (1.06").

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Average rainfall days in August
Rockville, IN

Average rainfall days in August - Rockville, IN
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (6.9 days).

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Average snowfall in August
Rockville, IN

Average snowfall in August - Rockville, IN
  • Average snowfall in August: 0"

The month with the highest snowfall is December (1.69").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Rockville, IN

Average snowfall days in August - Rockville, IN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Rockville, IN

Average daylight in August / Average sunshine in August - Rockville, IN
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in August
Rockville, IN

Average sunshine days in August - Rockville, IN
  • Average sunshine days in August: 16.1 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (10 days).

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Average UV index in August
Rockville, IN

Average UV index in August - Rockville, IN
  • Average UV index in August: 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).

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Average cloud cover in August
Rockville, IN

Average cloud cover in August - Rockville, IN
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 31).

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Average visibility in August
Rockville, IN

Average visibility in August - Rockville, IN
  • Average visibility in August: 5mi

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

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Rockville, Indiana, USA

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