July weather forecast
Marlborough, MA

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Weather in July

July, the same as June, is a moderately hot summer month in Marlborough, Massachusetts, with an average temperature varying between 82°F (27.8°C) and 63°F (17.2°C).

Temperature

July registers as the month with the highest average temperatures, reaching 82°F (27.8°C) at its peak and 63°F (17.2°C) at the lowest.

Heat index

July's mean heat index is estimated at a tropical 87.8°F (31°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

In July, the average relative humidity is 75%.

Rainfall

In July, in Marlborough, Massachusetts, the rain falls for 14.7 days. Throughout July, 2.05" (52mm) of precipitation is accumulated. In Marlborough, during the entire year, the rain falls for 140.8 days and collects up to 26.34" (669mm) of precipitation.

Snowfall

In Marlborough, Massachusetts, snow does not fall in June through September.

Daylight

In Marlborough, the average length of the day in July is 14h and 55min.
On the first day of the month, sunrise is at 5:13 am and sunset at 8:26 pm. On the last day of July, sunrise is at 5:38 am and sunset at 8:06 pm EDT.

Sunshine

In July, the average sunshine in Marlborough is 10.1h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Marlborough. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 6 during July translates into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What month is the hottest in Marlborough?

July is the warmest month of the year in Marlborough, Massachusetts, registering average temperatures as high as 82°F (27.8°C) and as low as 63°F (17.2°C).

What are July temperatures in Marlborough?

In Marlborough, in July, the average high-temperature is 82°F (27.8°C), and the average low-temperature is 63°F (17.2°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 87.8°F (31°C).

What is the average humidity in July in Marlborough?

In Marlborough, the average relative humidity in July is 75%.

How many days does it rain in July in Marlborough?

In July, in Marlborough, the rain falls for 14.7 days. Throughout July, 2.05" (52mm) of precipitation is accumulated.

When it does not snow in Marlborough?

In Marlborough, snow does not fall in June through September.

What is the average length of the day in July in Marlborough?

In Marlborough, Massachusetts, the average day length in July is 14h and 55min.

When is the sunrise / sunset in July in Marlborough?

On the first day of July, sunrise is at 5:13 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:06 pm EDT.

How many hours of sunshine does Marlborough have in July?

In July, the average sunshine duration is 10.1h.

What is the month with the highest UV index in Marlborough?

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

How high is the UV index in July in Marlborough?

In July, the average daily maximum UV index in Marlborough is 6. A UV Index of 6 to 7 symbolizes 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 July
Marlborough, MA

Average temperature in July - Marlborough, MA
  • Average high temperature in July: 82°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in July: 63°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in July
Marlborough, MA

Average pressure in July - Marlborough, 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
Marlborough, MA

Average wind speed in July - Marlborough, MA
  • Average wind speed in July: 5.7mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in July
Marlborough, MA

Average humidity in July - Marlborough, MA
  • Average humidity in July: 75%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in July
Marlborough, MA

Average rainfall in July - Marlborough, MA
  • Average rainfall in July: 2.05"

The wettest months (with the highest rainfall) are March, November and December (2.56").
The driest month (with the least rainfall) is September (1.34").

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Average rainfall days in July
Marlborough, MA

Average rainfall days in July - Marlborough, MA
  • Average rainfall days in July: 14.7 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (6.8 days).

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Average snowfall in July
Marlborough, MA

Average snowfall in July - Marlborough, MA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
Marlborough, MA

Average snowfall days in July - Marlborough, MA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (7.8 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
Marlborough, MA

Average daylight in July / Average sunshine in July - Marlborough, 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 1min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in July
Marlborough, MA

Average sunshine days in July - Marlborough, MA
  • Average sunshine days in July: 14.1 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is April (13.4 days).

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Average UV index in July
Marlborough, MA

Average UV index in July - Marlborough, 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
Marlborough, MA

Average cloud cover in July - Marlborough, MA
  • Average cloud cover in July: 36

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in July
Marlborough, MA

Average visibility in July - Marlborough, MA
  • Average visibility in July: 5mi

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

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Marlborough, Massachusetts, USA

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