July weather forecast
Sterling, MA

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Weather in July

July, the same as June, is another warm summer month in Sterling, Massachusetts, with an average temperature varying between 81.9°F (27.7°C) and 62.2°F (16.8°C).

Temperature

Sterling's July weather reaches an average high of 81.9°F (27.7°C) and an average low of 62.2°F (16.8°C), making it the warmest month.

Heat index

July's heat index is evaluated at a tropical 87.8°F (31°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

In July, the average relative humidity is 75%.

Rainfall

In July, the rain falls for 16 days. Throughout July, 2.32" (59mm) of precipitation is accumulated. In Sterling, Massachusetts, during the entire year, the rain falls for 150.4 days and collects up to 28.86" (733mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in July is 14h and 56min.
On the first day of July, sunrise is at 5:14 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:07 pm EDT.

Sunshine

The average sunshine in July is 10.1h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In July, a daily maximum UV index of 6 leads to the following instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

The warmest period is July, when temperatures fluctuate between an average high of 81.9°F (27.7°C) and a low of 62.2°F (16.8°C).

What is the temperature in July?

During July, Sterling experiences an average high-temperature of 81.9°F (27.7°C) and a low-temperature of 62.2°F (16.8°C). In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in July?

The average relative humidity in July in Sterling is 75%.

How much does it rain in July?

In July, the rain falls for 16 days. Throughout July, 2.32" (59mm) of precipitation is accumulated.

When it does not snow?

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

What is the average length of the day in July?

The average day length in July is 14h and 56min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 5:14 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:07 pm EDT.

How long on average sun shines in July?

In July, the average sunshine duration is 10.1h.

What is the month with the highest UV index?

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

How high is the UV index in July?

In Sterling, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's 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
Sterling, MA

Average temperature in July - Sterling, 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 (31.5°F).

  • Average low temperature in July: 62.2°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in July
Sterling, MA

Average pressure in July - Sterling, 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).

Average wind speed in July
Sterling, MA

Average wind speed in July - Sterling, MA
  • Average wind speed in July: 5.6mph

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).

Average humidity in July
Sterling, MA

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

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).

Average rainfall in July
Sterling, MA

Average rainfall in July - Sterling, MA
  • Average rainfall in July: 2.32"

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in July
Sterling, MA

Average rainfall days in July - Sterling, MA
  • Average rainfall days in July: 16 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in July
Sterling, MA

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

The month with the highest snowfall is February (6.1").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Sterling, MA

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

The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Sterling, MA

Average daylight in July / Average sunshine in July - Sterling, 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 12min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in July
Sterling, MA

Average sunshine days in July - Sterling, MA
  • Average sunshine days in July: 12.8 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (12.8 days).

Average UV index in July
Sterling, MA

Average UV index in July - Sterling, 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).

Average cloud cover in July
Sterling, MA

Average cloud cover in July - Sterling, 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).

Average visibility in July
Sterling, MA

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

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

Sterling, Massachusetts, USA

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