August weather forecast
Olney, MD

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Weather in August

The last month of the summer, August, is also a moderately hot month in Olney, Maryland, with temperature in the range of an average high of 84.9°F (29.4°C) and an average low of 67.6°F (19.8°C).

Temperature

August's arrival brings an average high-temperature of a moderately hot 84.9°F (29.4°C), demonstrating subtle variation from the preceding month. In the month of August, the average low-temperature usually rests at an enjoyable 67.6°F (19.8°C).

Heat index

During August, the heat index is calculated to be a hot 93.2°F (34°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

The average relative humidity in August in Olney, Maryland, is 71%.

Rainfall

August is the month with the most rainfall in Olney. Rain falls for 17.1 days and accumulates 4.13" (105mm) of precipitation.

Snowfall

In Olney, snow does not fall in May through October.

Daylight

The average length of the day in August in Olney is 13h and 39min.
On the first day of the month, sunrise is at 6:09 am and sunset at 8:19 pm. On the last day of August, sunrise is at 6:36 am and sunset at 7:40 pm EDT.

Sunshine

The average sunshine in August is 10.2h.

UV index

The months with the highest UV index in Olney are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

How hot is August in Olney?

August temperatures in Olney, Maryland, vary between a high-temperature of 84.9°F (29.4°C) and a low-temperature of 67.6°F (19.8°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 93.2°F (34°C).

What is the average humidity in August in Olney?

In Olney, Maryland, the average relative humidity in August is 71%.

What is the wettest month in Olney?

August is the month with the most rainfall in Olney. Rain falls for 17.1 days and accumulates 4.13" (105mm) of precipitation.

How many days does it rain in August in Olney?

In August, the rain falls for 17.1 days. Throughout August, 4.13" (105mm) of precipitation is accumulated.

When it does not snow in Olney?

In Olney, snow does not fall in May through October.

What is the average length of the day in August in Olney?

The average day length in August in Olney, Maryland, is 13h and 39min.

When is the sunrise / sunset in August in Olney?

In August, on the first day of the month, sunrise is at 6:09 am and sunset at 8:19 pm. On the last day of the month, in Olney, Maryland, sunrise is at 6:36 am and sunset at 7:40 pm EDT.

How many hours of sunshine does Olney have in August?

The average sunshine duration in August is 10.2h.

When is the highest UV index in Olney?

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

What is the UV index reading in August in Olney?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
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
Olney, MD

Average temperature in August - Olney, MD
  • Average high temperature in August: 84.9°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in August: 67.6°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

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Average pressure in August
Olney, MD

Average pressure in August - Olney, MD
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in August
Olney, MD

Average wind speed in August - Olney, MD
  • Average wind speed in August: 5.1mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in August
Olney, MD

Average humidity in August - Olney, MD
  • Average humidity in August: 71%

The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in August
Olney, MD

Average rainfall in August - Olney, MD
  • Average rainfall in August: 4.13"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.17").

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Average rainfall days in August
Olney, MD

Average rainfall days in August - Olney, MD
  • Average rainfall days in August: 17.1 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in August
Olney, MD

Average snowfall in August - Olney, MD
  • Average snowfall in August: 0"

The months with the highest snowfall are January and March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Olney, MD

Average snowfall days in August - Olney, MD
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and February (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Olney, MD

Average daylight in August / Average sunshine in August - Olney, MD
  • 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 30min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in August
Olney, MD

Average sunshine days in August - Olney, MD
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is November (19.4 days).
The months with the least sunshine days are May and July (11 days).

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Average UV index in August
Olney, MD

Average UV index in August - Olney, MD
  • 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, November and December (UV index 2).

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Average cloud cover in August
Olney, MD

Average cloud cover in August - Olney, MD
  • Average cloud cover in August: 33

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in August
Olney, MD

Average visibility in August - Olney, MD
  • Average visibility in August: 6mi

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

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Olney, Maryland, USA

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