August weather forecast
Wellesley Hills, MA

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Weather in August

August, the last month of the summer in Wellesley Hills, is also a moderately hot month, with an average temperature ranging between min 63°F (17.2°C) and max 81°F (27.2°C).

Temperature

Wellesley Hills marks the onset of August with an average high-temperature of a still moderately hot 81°F (27.2°C), a subtle shift from July's 81.9°F (27.7°C). Wellesley Hills, during August, witnesses an average low-temperature of 63°F (17.2°C).

Heat index

In August, the heat index is appraised at 84.2°F (29°C). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

In Wellesley Hills, the average relative humidity in August is 73%.

Rainfall

In Wellesley Hills, in August, it is raining for 7.8 days, with typically 0.43" (11mm) of accumulated precipitation. Throughout the year, there are 85.9 rainfall days, and 5.87" (149mm) of precipitation is accumulated.

Snowfall

In Wellesley Hills, snow does not fall in June through October.

Daylight

In Wellesley Hills, the average length of the day in August is 13h and 50min.
On the first day of the month, sunrise is at 5:38 am and sunset at 8:04 pm. On the last day of August, sunrise is at 6:10 am and sunset at 7:20 pm EDT.

Sunshine

The month with the most sunshine is August, with an average of 10.5h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 6 during August, leads to the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

What is the usual temperature for Wellesley Hills in August?

August temperatures vary between a high-temperature of 81°F (27.2°C) and a low-temperature of 63°F (17.2°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is appraised at 84.2°F (29°C).

What is the average humidity in August?

The average relative humidity in August in Wellesley Hills is 73%.

How many days does it rain in August?

In Wellesley Hills, during August, the rain falls for 7.8 days and regularly aggregates up to 0.43" (11mm) of precipitation.

When it does not snow?

June through October are months without snowfall.

How many hours of daylight does Wellesley Hills have in August?

The average day length in August is 13h and 50min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:38 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 7:20 pm EDT.

What month has the most sunshine?

With an average of 10.5h of sunshine, August has the most sunshine of the year.

How long on average sun shines in August?

The average sunshine duration in August is 10.5h.

What is the month with the highest UV index in Wellesley Hills?

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

How high is the UV index in August?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents 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
Wellesley Hills, MA

Average temperature in August - Wellesley Hills, MA
  • Average high temperature in August: 81°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in August: 63°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure in August
Wellesley Hills, MA

Average pressure in August - Wellesley Hills, MA
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Wellesley Hills, MA

Average wind speed in August - Wellesley Hills, MA
  • Average wind speed in August: 5.8mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in August
Wellesley Hills, MA

Average humidity in August - Wellesley Hills, MA
  • Average humidity in August: 73%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).

Average rainfall in August
Wellesley Hills, MA

Average rainfall in August - Wellesley Hills, MA
  • Average rainfall in August: 0.43"

The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.24").

Average rainfall days in August
Wellesley Hills, MA

Average rainfall days in August - Wellesley Hills, MA
  • Average rainfall days in August: 7.8 days

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is February (4.1 days).

Average snowfall in August
Wellesley Hills, MA

Average snowfall in August - Wellesley Hills, MA
  • Average snowfall in August: 0"

The month with the highest snowfall is December (0.91").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
Wellesley Hills, MA

Average snowfall days in August - Wellesley Hills, MA
  • 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 June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Wellesley Hills, MA

Average daylight in August / Average sunshine in August - Wellesley Hills, MA
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in August
Wellesley Hills, MA

Average sunshine days in August - Wellesley Hills, MA
  • Average sunshine days in August: 19.9 days

The months with the most sunshine days are January and November (22.5 days).
The month with the least sunshine days is June (17.5 days).

Average UV index in August
Wellesley Hills, MA

Average UV index in August - Wellesley Hills, MA
  • 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, March, November and December (UV index 2).

Average cloud cover in August
Wellesley Hills, MA

Average cloud cover in August - Wellesley Hills, MA
  • Average cloud cover in August: 32

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in August
Wellesley Hills, MA

Average visibility in August - Wellesley Hills, MA
  • 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).

Wellesley Hills, Massachusetts, USA

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