August weather forecast
Catonsville, MD

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Weather in August

August, the last month of the summer in Catonsville, is another warm month, with an average temperature varying between 67.3°F (19.6°C) and 83.5°F (28.6°C).

Temperature

The average high-temperature during August registers at a still moderately hot 83.5°F (28.6°C), closely corresponding to the preceding month. Catonsville observes an average low-temperature of 67.3°F (19.6°C) during August nights.

Heat index

August's mean heat index is estimated at a tropical 89.6°F (32°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.
Know that the heat index computations account for shaded terrains and slight winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

In Catonsville, Maryland, the average relative humidity in August is 73%.

Rainfall

August is the month with the most rainfall in Catonsville. Rain falls for 15.9 days and accumulates 3.74" (95mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day is 13h and 40min.
On the first day of the month, sunrise is at 6:07 am and sunset at 8:18 pm. On the last day of August, in Catonsville, sunrise is at 6:35 am and sunset at 7:38 pm EDT.

Sunshine

The average sunshine in August in Catonsville is 10.4h.

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 risk from unsafe exposure to UV radiation for the ordinary person.
Note: In August, the maximum UV index of 6 suggests these recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. 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. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

How hot does it get in Catonsville in August?

Catonsville in August has an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 67.3°F (19.6°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 89.6°F (32°C).

What is the average humidity in August in Catonsville?

In August, the average relative humidity is 73%.

What is the rainiest month in Catonsville?

The month with the most rainfall is August, when the rain falls for 15.9 days and typically aggregates up to 3.74" (95mm) of precipitation.

How much does it rain in Catonsville in August?

In Catonsville, Maryland, in August, during 15.9 rainfall days, 3.74" (95mm) of precipitation is typically accumulated.

When it does not snow in Catonsville?

May through October are months without snowfall.

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

The average day length in August in Catonsville is 13h and 40min.

When are sunrise and sunset in August in Catonsville?

In August, on the first day of the month, sunrise is at 6:07 am and sunset at 8:18 pm. On the last day of the month, in Catonsville, sunrise is at 6:35 am and sunset at 7:38 pm EDT.

How long on average sun shines in August in Catonsville?

In August, the average sunshine duration is 10.4h.

When is the highest UV index in Catonsville?

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

What is the UV index intensity in August in Catonsville?

In Catonsville, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Catonsville, MD

Average temperature in August - Catonsville, MD
  • Average high temperature in August: 83.5°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in August: 67.3°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
Catonsville, MD

Average pressure in August - Catonsville, 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 (29.94"Hg).

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Average wind speed in August
Catonsville, MD

Average wind speed in August - Catonsville, MD
  • Average wind speed in August: 5.4mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in August
Catonsville, MD

Average humidity in August - Catonsville, MD
  • Average humidity in August: 73%

The months with the highest relative humidity are May and October (77%).
The month with the lowest relative humidity is July (71%).

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Average rainfall in August
Catonsville, MD

Average rainfall in August - Catonsville, MD
  • Average rainfall in August: 3.74"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (2.05").

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Average rainfall days in August
Catonsville, MD

Average rainfall days in August - Catonsville, MD
  • Average rainfall days in August: 15.9 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.7 days).

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Average snowfall in August
Catonsville, MD

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

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Catonsville, MD

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

The month with the highest number of snowfall days is January (4.9 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
Catonsville, MD

Average daylight in August / Average sunshine in August - Catonsville, 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 2min

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
Catonsville, MD

Average sunshine days in August - Catonsville, MD
  • Average sunshine days in August: 13 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).

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Average UV index in August
Catonsville, MD

Average UV index in August - Catonsville, 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, February, November and December (UV index 2).

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Average cloud cover in August
Catonsville, MD

Average cloud cover in August - Catonsville, MD
  • Average cloud cover in August: 31

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in August
Catonsville, MD

Average visibility in August - Catonsville, MD
  • 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).

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Catonsville, Maryland, USA

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