August weather forecast
Chatham, PA

Share

Weather in August

The last month of the summer, August, is also a moderately hot month in Chatham, Pennsylvania, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 81.9°F (27.7°C).

Temperature

Welcoming August, Chatham notes an average high-temperature of a still moderately hot 81.9°F (27.7°C), nearly consistent with July's 84.2°F (29°C). Throughout August, the average low-temperature in Chatham records at a comfortable 64.9°F (18.3°C).

Heat index

August's heat index is appraised at a hot 87.8°F (31°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for 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 Chatham, Pennsylvania, the average relative humidity in August is 77%.

Rainfall

August is the month with the most rainfall in Chatham. Rain falls for 13.7 days and accumulates 1.93" (49mm) of precipitation.

Snowfall

June through October are months without snowfall in Chatham.

Daylight

In Chatham, Pennsylvania, the average length of the day in August is 13h and 41min.
On the first day of August in Chatham, sunrise is at 6:02 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:35 pm EDT.

Sunshine

In Chatham, the average sunshine in August is 10.1h.

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 unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Experience reduced UV exposure by about half when donning a wide-brim hat.
[Resources]

Frequently asked questions

What is the temperature in August in Chatham?

During August, Chatham experiences an average high-temperature of 81.9°F (27.7°C) and a low-temperature of 64.9°F (18.3°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in August in Chatham?

In Chatham, the average relative humidity in August is 77%.

What is the rainiest month in Chatham?

August is the month with the most rainfall in Chatham, Pennsylvania. Rain falls for 13.7 days and accumulates 1.93" (49mm) of precipitation.

How much does it rain in Chatham in August?

In August, in Chatham, the rain falls for 13.7 days. Throughout August, 1.93" (49mm) of precipitation is accumulated.

When it does not snow in Chatham?

In Chatham, Pennsylvania, snow does not fall in June through October.

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

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

When is the sunrise / sunset in August in Chatham?

In August, on the first day of the month, sunrise is at 6:02 am and sunset at 8:16 pm. On the last day of the month, in Chatham, sunrise is at 6:30 am and sunset at 7:35 pm EDT.

How many hours of sunshine does Chatham have in August?

In August, the average sunshine duration in Chatham, Pennsylvania, is 10.1h.

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

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

What is the UV index intensity in August in Chatham?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from 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
Chatham, PA

Average temperature in August - Chatham, PA
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).

[Resources]

Average pressure in August
Chatham, PA

Average pressure in August - Chatham, PA
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

[Resources]

Average wind speed in August
Chatham, PA

Average wind speed in August - Chatham, PA
  • Average wind speed in August: 5.2mph

The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

[Resources]

Average humidity in August
Chatham, PA

Average humidity in August - Chatham, PA
  • Average humidity in August: 77%

The months with the highest relative humidity are February, May, September, October and December (79%).
The months with the lowest relative humidity are March and April (75%).

[Resources]

Average rainfall in August
Chatham, PA

Average rainfall in August - Chatham, PA
  • Average rainfall in August: 1.93"

The wettest month (with the highest rainfall) is August (1.93").
The driest months (with the least rainfall) are January, September and November (0.87").

[Resources]

Average rainfall days in August
Chatham, PA

Average rainfall days in August - Chatham, PA
  • Average rainfall days in August: 13.7 days

The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is January (5.9 days).

[Resources]

Average snowfall in August
Chatham, PA

Average snowfall in August - Chatham, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is March (1.26").
The months with the least snowfall are June, July, August, September and October (0").

[Resources]

Average snowfall days in August
Chatham, PA

Average snowfall days in August - Chatham, PA
  • Average snowfall days in August: 0 days

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

[Resources]

Average daylight in August /
Average sunshine in August
Chatham, PA

Average daylight in August / Average sunshine in August - Chatham, PA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

[Resources]

Average sunshine days in August
Chatham, PA

Average sunshine days in August - Chatham, PA
  • Average sunshine days in August: 13.6 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (12.9 days).

[Resources]

Average UV index in August
Chatham, PA

Average UV index in August - Chatham, PA
  • 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).

[Resources]

Average cloud cover in August
Chatham, PA

Average cloud cover in August - Chatham, PA
  • Average cloud cover in August: 32

The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

[Resources]

Average visibility in August
Chatham, PA

Average visibility in August - Chatham, PA
  • 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).

[Resources]

Chatham, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location