July weather forecast
Chestnut Hill, MA

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Weather in July

July, the same as June, is a moderately hot summer month in Chestnut Hill, Massachusetts, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 64°F (17.8°C).

Temperature

The warmest period is July, when temperatures fluctuate between an average high of 81.9°F (27.7°C) and a low of 64°F (17.8°C).

Heat index

The average heat index in July is calculated to be a tropical 87.8°F (31°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

In July, the average relative humidity is 74%.

Rainfall

In Chestnut Hill, during July, the rain falls for 10.2 days and regularly aggregates up to 0.51" (13mm) of precipitation. In Chestnut Hill, during the entire year, the rain falls for 85.9 days and collects up to 5.87" (149mm) of precipitation.

Snowfall

In Chestnut Hill, snow does not fall in June through October.

Daylight

The average length of the day in July in Chestnut Hill is 14h and 55min.
On the first day of July, sunrise is at 5:12 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:05 pm EDT.

Sunshine

In July, the average sunshine in Chestnut Hill is 10.3h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily high UV index of 6 in July leads to these guidelines:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

What time of the year is the hottest in Chestnut Hill?

July is the month that records the highest temperatures, with averages ranging from a high of 81.9°F (27.7°C) to a low of 64°F (17.8°C).

What is the usual temperature for Chestnut Hill in July?

The high-temperature during July is 81.9°F (27.7°C) and the low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in July is calculated to be 87.8°F (31°C).

What is the average humidity in July in Chestnut Hill?

In July, the average relative humidity in Chestnut Hill is 74%.

How many days does it rain in July in Chestnut Hill?

In Chestnut Hill, during July, the rain falls for 10.2 days and regularly aggregates up to 0.51" (13mm) of precipitation.

When it does not snow in Chestnut Hill?

June through October are months without snowfall in Chestnut Hill, Massachusetts.

How many hours of daylight does Chestnut Hill have in July?

In Chestnut Hill, the average day length in July is 14h and 55min.

When are sunrise and sunset in July in Chestnut Hill?

In July, on the first day of the month, sunrise is at 5:12 am and sunset at 8:25 pm. On the last day of the month, in Chestnut Hill, sunrise is at 5:37 am and sunset at 8:05 pm EDT.

How many hours of sunshine does Chestnut Hill have in July?

In July, the average sunshine duration in Chestnut Hill is 10.3h.

When is the highest UV index in Chestnut Hill?

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

How high is the UV index in July in Chestnut Hill?

In Chestnut Hill, the average daily maximum UV index in July 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 July
Chestnut Hill, MA

Average temperature in July - Chestnut Hill, MA
  • Average high temperature in July: 81.9°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 July: 64°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).

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Average pressure in July
Chestnut Hill, MA

Average pressure in July - Chestnut Hill, MA
  • Average pressure in July: 29.94"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).

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Average wind speed in July
Chestnut Hill, MA

Average wind speed in July - Chestnut Hill, MA
  • Average wind speed in July: 5.9mph

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).

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Average humidity in July
Chestnut Hill, MA

Average humidity in July - Chestnut Hill, MA
  • Average humidity in July: 74%

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

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Average rainfall in July
Chestnut Hill, MA

Average rainfall in July - Chestnut Hill, MA
  • Average rainfall in July: 0.51"

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

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Average rainfall days in July
Chestnut Hill, MA

Average rainfall days in July - Chestnut Hill, MA
  • Average rainfall days in July: 10.2 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).

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Average snowfall in July
Chestnut Hill, MA

Average snowfall in July - Chestnut Hill, MA
  • Average snowfall in July: 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").

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Average snowfall days in July
Chestnut Hill, MA

Average snowfall days in July - Chestnut Hill, MA
  • Average snowfall days in July: 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).

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Average daylight in July /
Average sunshine in July
Chestnut Hill, MA

Average daylight in July / Average sunshine in July - Chestnut Hill, MA
  • Average daylight in July: 14h 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 July: 10h and 2min

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).

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Average sunshine days in July
Chestnut Hill, MA

Average sunshine days in July - Chestnut Hill, MA
  • Average sunshine days in July: 17.8 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).

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Average UV index in July
Chestnut Hill, MA

Average UV index in July - Chestnut Hill, MA
  • Average UV index in July: 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).

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Average cloud cover in July
Chestnut Hill, MA

Average cloud cover in July - Chestnut Hill, MA
  • Average cloud cover in July: 35

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

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Average visibility in July
Chestnut Hill, MA

Average visibility in July - Chestnut Hill, MA
  • Average visibility in July: 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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Chestnut Hill, Massachusetts, USA

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